Attachment_1_PSPEC.pdf

FOR OFFICIAL USE ONLY

SPECIFICATION OI-PRF-0001v2.0:

PERFORMANCE SPECIFICATION

FOR THE

OCULAR INTERRUPTION SYSTEM

PRODUCT MANAGER, NON-LETHAL SYSTEMS

INFANTRY WEAPONS SYSTEMS (PMM-113)

MARINE CORPS SYSTEMS COMMAND

January 2013

OI-PRF-0001v2.0 ii

Page Intentionally Left Blank iii

Record of Changes

Date Revision Reason for Change Entered by:

06/15/12 1.0 Initial Release 03/26/13 2.0 Update for Peer Review and SRR Closeout

Refer questions concerning this Performance Specification to Mr. , Non- Lethal Systems, Marine Corps Systems Command, Quantico, VA, .

iv

FOR OFFICIAL USE ONLY

TABLE OF CONTENTS

1. SCOPE 1

2. APPLICABLE DOCUMENTS 1

2.1 GENERAL. 1

2.2 GOVERNMENT DOCUMENTS. 1

2.3 ORDER OF PRECEDENCE. 1

3. REQUIREMENTS 2

3.1 GENERAL ATTRIBUTES. 2

3.2 WEAPON-MOUNTED CONFIGURATION. 2

3.3 HANDHELD CONFIGURATION. 3

3.4 GLARE SOURCE. 3

3.5 INTERFACE. 4

3.6 HUMAN SYSTEMS INTEGRATION. 5

3.7 POWER. 6

3.8 USER SURVIVABILITY. 7

3.9 ENVIRONMENTAL EFFECTS. 7

3.10 STORAGE AND MAINTENANCE. 8

4. VERIFICATION 9

4.1 CLASSIFICATION OF INSPECTIONS. 9

4.2 INSPECTION CONDITIONS. 9

4.3 VERIFICATION METHODS. 9

4.4 INITIAL ACCEPTANCE TESTING. 9

4.5 CONFORMANCE TESTING. 11

4.6 INSPECTION PROCEDURES. 11

5. PACKAGING 18

6. NOTES 18

6.1 TECHNICAL MANUALS. 18

PERFORMANCE SPECIFICATION

FOR THE

OCULAR INTERRUPTION SYSTEM

1. SCOPE

This Performance Specification establishes the primary performance parameters and characteristics for the Ocular Interruption (OI) system.

2. APPLICABLE DOCUMENTS

2.1 General.

The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they shall meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed.

2.2 Government Documents.

2.2.1 Specifications, Standards, and Handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

2.2.1.1 Specifications.

MIL-C-675C Coating of Glass Optical Elements (Anti-Reflection) MIL-F-48616 General Specification for Filter (Coatings), Infrared Interference MIL-L-46000C Lubricant, Semi-Fluid (Automatic Weapons) MIL-PRF-63460D Lubricant, Cleaner, and Preservative for Weapons and Weapons Systems

2.2.1.2 Standards.

ANSI Z136.1-2007 American National Standard for Safe Use of Lasers FED-STD-595C Colors Used in Government Procurement MIL-STD-461F Requirements for the Control of Electromagnetic Interference Characteristics of

Subsystems and Equipment MIL-STD-810G Test Method Standard for Environmental Engineering Considerations and

Laboratory Testing MIL-STD-1425A Safety Design Requirements for Military Lasers and Associated Support Equipment MIL-STD-1913 Dimensioning of Accessory Mounting Rail for Small Arms Weapons STANAG 4694 NATO Accessory Rail

2.2.2 Other Government Documents, Drawings, and Publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

OPNAVINST 5100.27B Navy Laser Hazards Control Program NAVSEA S9310-AQ-SAF-010 Technical Manual for Batteries, Navy Lithium Safety Program

Responsibilities and Procedures

2.3 Order of Precedence.

Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

The Ocular Interruption (OI) device shall be a rugged, light-weight visible hail and warning system employed as a clip-on attachment to a weapon system or in a standalone, hand-held configuration. The OI device shall use a green laser to produce warn and suppression levels of glare in targeted personnel while employing an automatic power limiting system to prevent accidental exposure of personnel to levels of irradiance above the Maximum Permissable Exposure (MPE) in accordance with ANSI Z136.1-2007.

3.1 General Attributes.

3.1.1 Major Components. Each OI system shall consist of the items listed in Table 3.1.1-1.

Table 3.1.1-1: Major Components of the OI System

Component Paragraph Ocular Interruption Device 3 Lens Cover 3.1.3 Rail attachment mechanism 3.2.2 Grip Stock 3.3.1 Remote Fire Switch 3.5.4 Soft Carrying Pouch 3.6.3 Batteries 3.7.2 Cleaning Kit N/A Quick Reference Guide N/A

3.1.2 Weight. The total weight of the OI device, remote fire switch, rail attachment mechanism, lens cover(s), and batteries shall not exceed 0.567kg (20oz). The total weight of the OI device, remote fire switch, rail attachment mechanism, lens cover(s), and batteries should not exceed 0.283kg (10oz).

3.1.3 Lens Cover. The OI device shall include a protective cover for its lenses which remains attached to the OI device, both when open and closed, despite exposure to wind speeds up to 20m/s (45mph). When open, the lens cover shall not interfere with the optical path, the operator’s use of the OI device, or the operation of the host weapon.

3.1.4 Operational Configurations. The OI device shall be employable as a clip-on attachment to a weapon, per 3.2, and as a handheld device per 3.3.

3.2 Weapon-Mounted Configuration.

3.2.1 Host Platform. The OI device shall be able to attach to the left and right accessory mounting rails of M4, M16A4, and M27 rifles. The OI device should be able to attach to any system which includes an accessory mounting rail compliant with MIL-STD-1913 or STANAG 4694.

3.2.2 Weapon Interface. The OI device shall mount to the accessory rail of the host weapon using either a locking throw lever or a threaded locking nut. The mechanism for attaching the OI device to the rail shall not disassemble into more than two parts.

3.2.3 Weapon Operation. When it is attached to a weapon, the OI device shall not interfere with the function of the host weapon, interfere with the Marine’s ability to operate the weapon system, or obstruct the weapon’s optical sight.

3.2.4 Alignment Accuracy. When it is attached to a weapon, the boresight alignment of the OI device optical;

axis with the weapon’s optical sight or iron sights shall be adjustable to within ±0.5 mrad. The operator shall be able to adjust the alignment of the OI device without removing from the host platform and without using tools. The OI device shall not change boresight alignment by more than 1.0 mrad after firing one full magazine from the attached weapon or exposure to the weapon-mounted shock and land transit vibration described in 3.9.12 and 3.9.13. The OI device should not change alignment by more than 1.0 mrad after the firing 210 rounds from the attached weapon or exposure to the weapon-mounted shock and land transit vibration described in 3.9.12 and 3.9.13.

3.2.5 Attachment Time. Attaching the OI device to a weapon shall take no longer than 90 seconds. Attaching the OI device to a weapon should take no longer than 10 seconds.

3.3 Handheld Configuration.

3.3.1 Pistol grip. A pistol grip, to which the OI device shall be attached for handheld use, shall be included with the OI device. The pistol grip shall provide an aiming capability for the attached OI device and position for the remote fire switch. The OI device handheld configuration shall consist of the OI device attached to a pistol grip.

3.3.2 Pistol grip weight. The pistol grip with aiming capability shall weigh no more than 340g (12oz) and should weigh no more than 255g (9oz).

3.3.3 NOT USED

3.3.4 Ergonomics. When in the handheld configuration, the operator shall be able to aim and fire the OI device with one hand while maintaining a neutral wrist-posture. The pistol grip shall allow positioning of the remote fire switch for right handed or left handed operation.

3.4 Glare Source.

3.4.1 Visible Laser. The OI device shall project a visible laser, operating at a wavelength of at least 520nm and no more than 540nm, with a maximum output power of at least 180mW and no more than 500mW at all temperatures within the operating range specified in 3.9.2. The OI device should project laser energy within the specified wavelength range with a maximum output power of at least 330mW and no more than 500mW at all temperatures within the operating range specified in 3.9.2.

3.4.1.1 Range of Low Suppression Irradiance. In “Spot Mode”, the irradiance measured within the 1/e spot size shall be greater than or equal to 55.0 μW/cm2 from 10-135 meters; it should be greater than or equal to 55.0 μW/cm2 from 2-185 meters.

3.4.1.2 Range of Medium Suppression Irradiance. In “Spot Mode”, the irradiance measured within the 1/e spot size shall be greater than or equal to 680μW/cm2 from 10-35 meters; it should be greater than or equal to 680μW/cm2 from 2-50 meters.

3.4.2 Beam Divergence. The OI device shall allow the operator to select between the beam divergence modes specified in 3.4.2.1 and 3.4.2.2. Beam divergence shall be measured as half of the full angular spread of the beam, as depicted in Figure 3.4.2-1.

Figure 3.4.2-1: Diagram of Beam Divergence, θ

3.4.2.1 Spot Mode. The OI device shall provide a ‘spot’ mode of operation, which provides a beam divergence of at least 2.0mrad and no more than 𝟎.𝟏𝟓 × √𝐏 mrad, where P represents the maximum output power (in mW) of the glare source.

3.4.2.2 Flood Mode. The OI device shall provide a ‘flood’ mode of operation, which provides a beam divergence of at least 35mrad. The OI device should be able to provide a beam divergence of at least 70mrad in flood mode.

3.4.3 Duty Cycle. The OI device shall allow the operator to select between the following output modes:

3.4.3.1 Continuous Wave (CW). The OI device shall provide a continuous wave beam.

3.4.3.2 Pulsed. The OI device shall provide a pulsed beam operating between 9Hz and 12Hz with a duty cycle of 0.50 ± 0.05. The maximum irradiance provided during the active portion of pulsed operation shall be the same, within 10%, as the average irradiance provided in the CW mode of operation.

3.4.4 Power Limiting System.

3.4.4.1 Maximum Allowable Intensity. The OI device shall include an automatic mechanism to prevent any exposure of personnel to visible laser energy with average intensity greater than 2.25mW/cm2 or infrared laser energy with intensity greater than the maximum permissible exposure defined in Table 5a of

ANSI Z136.1-2007.

3.4.4.2 Effective Range. The OI device shall be able to automatically reduce the intensity of the glare source while in ‘Spot Mode’, per 3.4.2.1, in order to safely engage targets at ranges as close as 10m and should be able to do so at ranges as close as 2m.

3.4.4.3 Atmospheric Attenuation. The OI device shall operate in all atmospheric conditions that attenuate 35% of laser power through absorption and scatter of its visible beam over a range of 100 meters. The intensity of the laser energy arriving at the target shall be attenuated by no more than the percentage of atmospheric absorption and scatter beyond the level required for safe operation.

3.4.4.4 Maximum Laser Power Indicator. The OI device should have an indicator for when the the visible laser is operating at maximum output power specified in 3.4.1.

3.4.5 Activation. The OI device shall be activated (fired) by a momentary-on switch; the OI device shall cease operation when the switch is released. The OI device shall employ methods such as guarded switches, safety interlocks, and lens covers to prevent inadvertent firing.

3.4.6 Laser Delay. Visible laser energy compliant with 3.4.1 and 3.4.4 shall arrive at the target within

0.25 seconds after the operator fires the OI device and should arrive within 0.1 seconds.

3.5 Interface.

3.5.1 Tools. The OI device shall not require the use of any tools for normal operations, including replacement of the batteries and attachment and alignment of the OI device to a weapon. A tool may be used for initial adjustments to match the mounting system to the host weapon. Only a tool that is included in the currently fielded armor's or optic tool kit shall be used for this adjustment; this tool shall be supplied with each OI System. Tools should not be required for initial adjustments to match the OI mounting system to the host weapon.

3.5.2 System States. The OI device shall utilize the following states of operation:

3.5.2.1 ‘OFF’ Status. When it is powered down, the OI device shall prevent accidental switching to the ‘ARMED’ state of operation. The OI device shall not allow a transition directly from ‘OFF’ to the ‘FIRING’ state.

3.5.2.2 ‘ARMED’ Status. The OI device shall power up into an armed state in preparation for an engagement.

The OI device shall transition from ‘OFF’ status to ‘ARMED’ status in 3.5 seconds or less. The OI device should transition from ‘OFF’ status to ‘ARMED’ status in less than 1.0 seconds.

3.5.2.3 ‘FIRING’ Status. The OI device shall only fire through a deliberate and continuous action of the operator in accordance with 3.4.5. The OI device shall only be able to fire from the ‘ARMED’ state.

3.5.3 Status Indicators. At a minimum, the OI device shall provide clear and accurate indicators concerning the states of operation listed in Table 3.5.3-1. The indicators shall be visible to the unaided eye in ambient light conditions which provide at least 15,000 lux and to users wearing night vision goggles (NVG).

Table 3.5.3-1: Status Indicators

Status Paragraph

ARMED 3.5.2.2

FIRING 3.5.2.3

SPOT 3.4.2.1

FLOOD 3.4.2.2

CONTINUOUS 3.4.3.1

PULSED 3.4.3.2

*MAXIMUM LASER

POWER 3.4.4.4

BATTERY LOW POWER 3.7.4

*Note: This is a “should” requirement. All other status indicators are “shall” requirements.

3.5.4 Remote Firing Capability.

3.5.4.1 Remote Fire Switch. The OI device shall include a removable remote activation switch which can be located near the trigger of the host weapon. The remote fire switch shall comply with the requirements of 3.2.3, 3.4.5, and 3.6.1.

3.5.4.2 Remote Control Interface. The OI device remote fire switch shall utilize a wired, electrical connection to the OI device body. The interface to the remote fire switch shall be routed such that it does not interfere with the operator’s ability to use the weapon or present a snag hazard to the operator.

3.5.5 Electrical Connectors. Electrical interfaces on the OI device shall not protrude from the device. The connections provided by such interfaces shall not be damaged or degraded after exposure to the environmental effects described in 3.9.

3.6 Human Systems Integration.

3.6.1 Physical Controls. The OI device controls shall be easily distinguished from each other by both sight and touch. The controls shall provide tactile feedback to the operator that activation has occurred. The controls shall be positioned for ambidextrous use and to allow operation without exposing operators to laser energy.

3.6.2 Size and Shape. The OI device, its remote fire switch, and all accessories shall be usable by operators whose hand size is within the 5th to 95th percentile of Marines.

3.6.3 Soft Carrying Pouch. The OI device shall include a soft carrying pouch that shall be colored Coyote 476/498, color number 20150 per FED-STD-595C

3.6.3.1 Capacity. The soft carrying pouch shall include space for the OI device with lens cover(s), remote fire switch, spare batteries, quick reference guide, and cleaning kit.

3.6.3.2 Pouch Attachment Ladder System (PALS). The soft carrying pouch shall include a PALS weave which allows it to be attached to individual load-bearing equipment and shall be configured to allow quick access to the OI device.

3.6.4 Integration with Mission-Essential Gear. The OI device shall be operable without interfering with mission essential gear worn by the operator. Mission-essential gear includes, at a minimum, all items listed in Table 3.6.4-1.

Table 3.6.4-1: Mission-Essential Gear Head Body

Helmet Load-bearing Equipment Non-Ballistic Face Shield Body Armor Protective Eyewear Gloves Helmet-Mounted NVG

3.6.5 Gloved Operation. All OI device controls shall be operable by an operator wearing any issue Marine Corps flame-resistant gloves. The operator should be able to replace the batteries and attach the OI device to a weapon while wearing any issued Marine Corps flame-resistant gloves.

3.6.6 Ease of Operation. The maximum training time required of a Marine to achieve system proficiency shall be less than 30 minutes; the maximum training time should be less than 15 minutes. Training shall include, installation, alignment, arming, firing, battery(s) replacement, and cleaning the lenses.

3.7 Power.

3.7.1 Battery Life. The OI device shall be operable for at least 30 5-second engagements at the maximum output power, per 3.4.1, at a temperature of 0°C ± 5°C after a period of 12 hours in the ‘ARMED’ state, per 3.5.2.2, before the batteries need replacement. The OI device should be able to operate for at least 100 5-second engagements after a period of 24 hours in the ‘ARMED’ state under the same conditions.

3.7.2 Battery Type. The OI device shall operate using commercially available, UL-listed AA or 3V123 battery(s). The OI device should use no more than 2 lithium batteries.

3.7.3 Battery Safety. If more than 2 lithium batteries are used, then NAVSEA S9310-AQ-SAF-010 compliance is required; therefore, the OI device battery compartment shall incorporate a safety-venting device or shall be designed and manufactured in such a manner that precludes a violent rupture condition if the batteries fail. If a safety-venting is used, then the direction of venting shall not be directed towards the operator in the weapon mounted or hand held configuration.

3.7.4 Battery Low-Power Indicator. The OI device shall provide an indication to the operator, per 3.5.3, when the batteries have been reduced to 25%, ±5%, of their maximum capacity.

3.7.5 Battery Replacement. Replacing the batteries shall not require the removal of the OI device from the weapon.

3.7.5.1 Ease of Replacement. While the OI device is attached to a weapon, the operator shall be able to replace the batteries within 60 seconds. The operator should be able to replace the batteries within 10 seconds while the OI device is attached to the weapon.

3.7.5.2 Battery Orientation. Visual and tactile indicators of proper battery orientation shall be included on the battery cap or housing. The OI device batteries should be installed with the positive end toward the battery cap.

3.7.6 Reverse Voltage Protection. The OI device shall not be damaged or lose functionality as a result of improper battery installation.

3.8 User Survivability.

3.8.1 Noise Emissions. The OI device shall not emit noise detectable by an unaided observer from a distance of 10 meters. The OI device should not emit noise detectable by an unaided observer from a distance of 2m.

Noises louder than 45dB(A) are considered detectable.

3.8.2 Laser Markings. The OI device shall include laser safety labels compliant with the requirements of MIL-STD-1425A and OPNAVINST 5100.27B.

3.8.3 Body Finish. The OI device body, lens cover(s), and remote firing switch shall be provided in a muted color with a matte finish. The OI device body should be colored Coyote 476/498, color number 20150 per FED-STD-595C. Laser safety labels, per 3.8.2, shall be provided in muted colors.

3.8.4 Carcinogens. The OI device shall not expose operators, handlers, or maintainers to carcinogens. The OI device shall not be constructed using known carcinogenic materials.

3.9 Environmental Effects.

3.9.1 Altitude. The OI device shall not exhibit performance degradation when operating from -400m to +4570m above sea level or after exposure to a pressure altitude of 12200m above sea level. Atmospheric pressure effects shall not cause inadvertent activation of controls.

3.9.2 Operating Temperature. The OI device shall operate in sustained temperatures of 0°C (32°F) to +50°C (122°F) without damage or performance degradation. The OI device should operate in sustained temperatures of -20°C (-4°F) to +50°C (122°F) without damage or performance degradation.

3.9.3 Storage Temperature. The OI device shall withstand storage in temperature environments of -44°C (-47°F) and +60°C (140°F) without damage or performance degradation.

3.9.4 Temperature Shock. The OI device shall withstand changes which span the entire operating temperature range specified in 3.9.2 in a 10 minute interval after stabilization at either temperature extreme without damage, performance degradation, or interior condensation.

3.9.5 Solar Radiation. The OI device shall withstand the additional heat caused by solar loading with no performance degradation throughout the operating temperature range specified in 3.9.2.

3.9.6 Immersion. The OI device, without the use of a waterproof bag or case and with the battery cover open or closed, shall be waterproof to a depth of 1m of saltwater for a period of 15 minutes. The OI device, under the same conditions, should be waterproof to a depth of 20m of saltwater for a period of 2 hours.

Immersion shall not cause inadvertent activation of controls.

3.9.7 Sand and Dust. The OI device, with its lens covers closed, shall withstand the effects of airborne sand and dust without damage or performance degradation.

3.9.8 Salt Fog. The OI device shall withstand the effects of exposure to salt fog and subsequent cleaning with no performance degradation. The finish of the OI device shall exhibit no signs of blistering, softening, separation from the base, corrosion, or other coating failures after exposure to salt fog and subsequent cleaning.

3.9.9 Resistance to Chemicals and Fluids. The OI device shall not suffer performance degradation caused by the effects of contact with common chemicals and fluids, including, but not limited to: CLP (per MIL-PRF-

63460D), LSA (per MIL-L-46000C), DEET (N,N-Diethyl-meta-toluamide), sunscreen, motor oil, diesel fuel, transmission fluid, activated charcoal, and ethylene glycol.

3.9.10 Scratch Resistance. The OI device lenses shall include a scratch resistant, anti-reflective coating. The coating shall show no signs of deterioration such as streaks or scratches when abraded with a dry, clean cheesecloth pad per MIL-C-675C and MIL-F-48616.

3.9.11 Weapon Shock. The OI device shall operate without damage or performance degradation after exposure to the firing of 900 rounds from any M4 or M16A4 to which it is attached. The OI device should operate without damage or performance degradation after exposure to the firing of 5000 rounds from any M4 or M16A4 to which it is attached.

3.9.12 Drop Shock. The OI device shall withstand, without the carrying case, being dropped from a height of 1.5m onto hard-packed earth without damage or performance degradation when attached to either its associated grip stock or a weapon.

3.9.13 Vibration. The OI device shall withstand the effects of vibration during transit by sea, land, or air with no performance degradation.

3.10 Storage and Maintenance.

3.10.1 Storage. The OI device shall not require any special storage beyond that already available within the USMC for existing optical equipment.

3.10.2 Reliability. The OI device shall operate for at least 200 5-second engagements in its intended operating environment with no failures or performance degradation. The OI device should operate for at least 500 5-second engagements in its intended operating environment with no failures or performance degradation.

3.10.3 Mean Time to Repair (MTTR). Performing routine organizational/crew level matainence on the OI device shall not require more than 30 minutes and should not require more than 15 minutes.

3.10.4 Operational Availability. Probability the OI device is available for operational employmentwhen required shall be greater than 95% and should be greater than 99%. Availability is a function of the ability of the system to perform without failure (reliability) and quickly restored to service (a function of both maintainability and the level and accessibility of support resources). For the purposes of this specification, availability only applies to parts and material selection.

4. VERIFICATION

4.1 Classification of Inspections.

The inspection requirements specified herein are classified as follows:

4.1.1 Initial Acceptance Testing. The initial testing of production OI devices is described in 4.4.

4.1.2 Conformance Testing. Conformance testing of production OI devices is described in 4.5.

4.2 Inspection Conditions.

4.2.1 Temperature. Unless otherwise specified, all inspections shall be performed at room temperature (20°C ± 5°C).

4.2.2 Atmospheric Pressure. Unless otherwise specified, all inspections shall be performed within 5 percent of one atmosphere of pressure (1013 mbar ± 50 mbar).

4.2.3 Relative Humidity. Unless otherwise specified, all inspections shall be performed at the uncontrolled relative humidity of the test site.

4.3 Verification Methods.

4.3.1 Analysis (A). Analysis is a method of verification that uses established technical or mathematical models, simulations, algorithms, charts, graphs, or other scientific principles and procedures to provide evidence that stated requirements were met.

4.3.2 Demonstration (D). Demonstration is a method of verification that involves the operation of an item or the system to provide evidence that the required functions were accomplished under the specified conditions. The items may be instrumented and performance monitored.

4.3.3 Visual Inspection (I). Inspection is a method of verification that uses visual examination of the system and associated deliverable items to determine whether they conform to the specified requirements.

4.3.4 Test (T). Testing is a method of verification in which scientific principles and procedures are applied to quantitatively measure or determine the functional capabilities of items.

4.3.5 User Evaluation (U). User evaluation is a method of verification in which a number of Marines are given the opportunity to use the system in order to provide an appraisal of its suitability and effectiveness.

During the user evaluation, much of the measured data will be collected in the form of survey questions.

4.4 Initial Acceptance Testing.

4.4.1 Purpose. Initial acceptance testing shall verify that the production of OI devices is adequate to meet all requirements for the OI device.

4.4.2 Number of Units. Initial acceptance testing shall be performed on the first 20 OI device units to be delivered to the Government.

4.4.3 Inspection Procedures. The requirements and inspection procedures for initial acceptance testing are listed in Table 4.4.3-1. Inspection procedures are to be carried out in the order indicated in the table.

Table 4.4.3-1: Initial Acceptance Test Procedures

Procedure Number Requirement Description Requirement

Paragraph Verification Paragraph

Verification Method

1 Major Components 3.1.1 4.6.1.1 I 2 Weapon Interface 3.2.2 4.6.2.2 I 3 Laser Markings 3.8.2 4.6.8.2 I 4 Body Finish 3.8.3 4.6.8.3 I 5 Battery Orientation 3.7.5.2 4.6.7.6 I 6 Reverse Voltage Protection 3.7.6 4.6.7.7 T 7 Weight 3.1.2 4.6.1.2 T 8 System States: State Changes 3.5.2 4.6.5.2 D 9 System States: Start-up Time 3.5.2.2 4.6.5.3 T

10 Activation 3.4.5 4.6.4.11 I, D 11 Remote Fire Switch: Functionality 3.5.4.1 4.6.5.6 D 12 Laser Delay 3.4.6 4.6.4.12 T 13 Visible Laser: Wavelength 3.4.1 4.6.4.1 T 14 Visible Laser: Power 3.4.1 4.6.4.2 T 15 Beam Divergence: Spot Mode 3.4.2.1 4.6.4.3 T 16 Beam Divergence: Flood Mode 3.4.2.2 4.6.4.4 T 17 Duty Cycle: Modes 3.4.3 4.6.4.5 D 18 Duty Cycle: Pulsed 3.4.3.2 4.6.4.6 T 19 Maximum Allowable Intensity 3.4.4.1 4.6.4.7 T 20 Effective Range 3.4.4.2 4.6.4.7 T 21 Alignment: Accuracy 3.2.4 4.6.2.4 T 22 Sand and Dust 3.9.7 4.6.9.8 T 23 Salt Fog 3.9.8 4.6.9.9 T 24 Resistance to Chemicals and Fluids 3.9.9 4.6.9.10 T 25 Scratch Resistance 3.9.10 4.6.9.11 T 26 Drop Shock: Handheld 3.9.12 4.6.9.13 T 27 Operating Temperature 3.9.2 4.6.9.3 T 28 Vibration: Air 3.9.13 4.6.9.15 T 29 Storage Temperature 3.9.3 4.6.9.4 T 30 Vibration: Sea 3.9.13 4.6.9.17 T 31 Temperature Shock 3.9.4 4.6.9.5 T 32 Vibration: Land 3.9.13 4.6.9.16 T 33 Solar Radiation 3.9.5 4.6.9.6 T 34 Drop Shock: Weapon Mounted 3.9.12 4.6.9.14 T 35 Operating Altitude 3.9.1 4.6.9.1 T 36 Transportation Altitude 3.9.1 4.6.9.2 T 37 Immersion 3.9.6 4.6.9.7 T 38 Electrical Connectors 3.5.5 4.6.5.8 T 39 Alignment: Retention 3.2.4 4.6.2.5 T 40 Battery Life 3.7.1 4.6.7.1 T 41 Battery Low Power Indicator 3.7.4 4.6.7.4 T

4.5 Conformance Testing.

4.5.1 Purpose. Conformance inspection shall ensure that production OI device units meet specification requirements prior to acceptance by the Government.

4.5.2 Number of Units. Conformance inspection shall be performed on all OI device units in accordance with the sample rates listed in Table 4.5.3-1.

4.5.3 Inspection Procedures. The requirements and inspection procedures for conformance inspection are listed in Table 4.5.3-1. Inspection procedures are to be carried out in the order indicated in the table.

Table 4.5.3-1: Conformance Test Procedures

Procedure Number Requirement Description Requirement

Paragraph Verification Paragraph

Minimum Sample Rate

1 Major Components 3.1.1 4.6.1.1 100% 2 Laser Markings 3.8.2 4.6.8.2 10% 3 Body Finish 3.8.3 4.6.8.3 10% 4 Battery Orientation 3.7.5.2 4.6.7.6 10% 5 Reverse Voltage Protection 3.7.6 4.6.7.7 10% 6 Weight 3.1.2 4.6.1.2 10% 7 System States: Start-up Time 3.5.2.2 4.6.5.3 10% 8 Activation 3.4.5 4.6.4.11 10% 9 Remote Fire Switch: Functionality 3.5.4.1 4.6.5.6 10%

10 Visible Laser: Wavelength 3.4.1 4.6.4.1 10% 11 Visible Laser: Power 3.4.1 4.6.4.2 10% 12 Beam Divergence 3.4.2 4.6.4.3 10% 13 Alignment: Accuracy* 3.2.4 4.6.2.4 5% 14 Drop Shock: Handheld* 3.9.12 4.6.9.13 2% 15 Operating Temperature* 3.9.2 4.6.9.3 2% 16 Vibration: Land* 3.9.13 4.6.9.16 2% 17 Temperature Shock* 3.9.4 4.6.9.5 2% 18 Transportation Altitude* 3.9.1 4.6.9.2 2% 19 Immersion* 3.9.6 4.6.9.7 2% 20 Electrical Connectors* 3.5.5 4.6.5.8 2% 21 Alignment: Retention* 3.2.4 4.6.2.5 2%

* Units subjected to drop shock testing shall also be subject to all subsequent tests and shall be selected from among the units which have undergone alignment accuracy testing.

4.6 Inspection Procedures.

4.6.1 General Attributes.

4.6.1.1 Major Components. The compliance of the OI device with 3.1.1 shall be verified by visual inspection.

4.6.1.2 Weight. The compliance of the OI device with 3.1.2 shall be verified by weighing the OI device with a calibrated scale. The OI device shall be weighed in the weapon-mounted configuration. All necessary items shall be included in the system weight, which includes: the OI device, attachment hardware, remote fire switch, and batteries needed to operate the OI device.

4.6.1.3 Lens Cover: Wind Resistance. The compliance of the OI device with the wind resistance requirements of 3.1.3 shall be verified by attaching the OI device to the exterior of a vehicle moving at 20m/s (45mph) for a period of ten minutes. This evaluation shall be conducted twice: once with the lens cover open and once with the lens cover closed. At the end of each ten-minute exposure, the lens cover shall be inspected to determine whether it changed state (opened/closed) during the test and shall be examined for damage.

4.6.1.4 Lens Cover: Obstruction and Obscuration. The compliance of the OI device with the usability requirements of 3.1.3 shall be verified by evaluating the users’ ability to operate the OI device and the weapon to which it is attached during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.1.5 Operational Configurations. The compliance of the OI device with 3.1.4 shall be verified by the inspections performed in 4.6.2 and 4.6.3.

4.6.2 Weapon-Mounted Configuration.

4.6.2.1 Host Platform. The compliance of the OI device with 3.2.1 shall be verified by demonstrating that the OI device can be attached to an attachment rail compliant with MIL-STD-1913 or STANAG 4694 and that the OI device fits in the available space on the right and left rails of M4 and M16A4 rifles.

4.6.2.2 Weapon Interface. The compliance of the OI device with 3.2.2 shall be verified by visual inspection.

4.6.2.3 Weapon Operation. The compliance of the OI device with 3.2.3 shall be verified by evaluating users’ ability to operate a weapon to which the OI device is attached during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.2.4 Alignment: Accuracy. The compliance of the OI device with the alignment accuracy requirements of

3.2.4 shall be verified by directing the reticle of the weapon’s optical sight at a target placed at the focal point of a collimating mirror and adjusting the OI device until it’s within 0.5 mrad. The offset between the center of the beam and the target will be measured and used to calculate the alignment accuracy.

4.6.2.5 Alignment: Retention. The compliance of the OI device with the boresight retention requirements of

3.2.4 shall be verified by repeating the procedure in 4.6.2.4 after the completion of the procedures detailed in 4.6.9.3, 4.6.9.12, 4.6.9.14, and 4.6.9.16 and comparing the measured value after exposure to environmental testing to the measured value from the initial test.

4.6.2.6 Attachment Time. The compliance of the OI device with 3.2.5 shall be verified by measuring the time required for users to attach the OI device to a weapon during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.3 Handheld Configuration.

4.6.3.1 Pistol Grip. The compliance of the OI device’s pistol grip with 3.3.1 shall be verified by visual inspection and by demonstrating that the OI device and an optical sight can be simultaneously attached to the pistol grip.

4.6.3.2 Pistol Grip Weight. The compliance of the OI device’s pistol grip with 3.3.2 shall be verified by weighing the pistol girp with a calibrated scale.

4.6.3.3 Handheld Alignment: Retention. The compliance of the OI device with the boresight retention requirements of 3.2.4 shall be verified by repeating the procedure in Error! Reference source not found.

after the completion of the procedures detailed in 4.6.9.3, 4.6.9.13, and 4.6.9.16 and comparing the measured value after exposure to environmental testing to the measured value from the initial test.

4.6.3.4 Ergonomics. The compliance of the OI device with 3.3.3 shall be verified by operating the OI device in the handheld configuration during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.4 Glare Source.

4.6.4.1 Visible Laser: Wavelength. The compliance of the OI device with the wavelength requirements of

3.4.1 shall be verified by measuring the laser’s wavelength with a spectrometer.

4.6.4.2 Visible Laser: Power. The compliance of the OI device with the output power requirements of 3.4.1 shall be verified by setting the OI device into Flood mode and focusing the output beam onto a laser power meter for measurement. The compliance of 3.4.1 shall be verified by setting the OI device into Spot mode and measuring the output power at a distance beyond the range of the power limiting system.

The spatial profile of the OI device will be measured at 500 meters and at the ranges specified in 3.4.1.1 and 3.4.1.2. Measurements will be made under ‘clear’ atmopheric conditions at an altitude of less than 1 km at a temperature between 0°C (32°F) and 35°C (95°F).

4.6.4.3 Beam Divergence: Spot Mode. The compliance of the OI device with 3.4.2.1 shall be verified by setting the OI device in ‘Spot’ mode measuring the diameter of the beam from the glare source at a range of 100m. The diameter of Gaussian beams shall be measured at the 1/e2 point; the diameter of uniform beams shall be measured at the edge of the flat region. The measured diameter shall be used to calculate the beam divergence.

4.6.4.4 Beam Divergence: Flood Mode. The compliance of the OI device with 3.4.2.2 shall be verified by setting the OI device in ‘Flood’ mode and measuring the diameter of the beam from the glare source at a range of 10m. The diameter of Gaussian beams shall be measured at the 1/e2 point; the diameter of uniform beams shall be measured at the edge of the flat region. The measured diameter shall be used to calculate the beam divergence.

4.6.4.5 Duty Cycle: Modes. The compliance of the OI device with 3.4.3 shall be verified by demonstrating that the OI device can provide both CW and pulsed beam outputs.

4.6.4.6 Duty Cycle: Pulsed. The compliance of the OI device with 3.4.3.2 shall be verified by measuring the pulse width, pulse frequency, and average power output by the pulsed output of the OI device.

4.6.4.7 Maximum Allowable Intensity. The compliance of the OI device with 3.4.4.1 and 3.4.4.2 shall be verified by measuring the intensity at the center of the beam from the glare source as the OI device fires in ‘Spot’ mode toward a laser power meter from incrementally decreasing ranges from 100m to 2m.

4.6.4.8 Effective Range. The compliance of the OI device with 3.4.4.2 shall be verified by measuring the amount of time that an object entering the beam path of the glare source at a range of 10m or 2m is exposed to the full power of the glare source and comparing the calculated energy received to the maximum permissible exposure level defined in Table 5a on page 74 of ANSI Z136.1-2007.

4.6.4.9 Atmospheric Attenuation. The compliance of the OI device with 3.4.4.3 shall be verified by simulating 35% absorption of the glare source and 58% absorption of the output beam of any rangefinder included in the OI device and then measuring the intensity of the glare source at a range of 100m.

4.6.4.10 Maximum Laser Power Indicator. The compliance of the OI device with 3.4.4.4 shall be verified by demonstrating that a visible indicator illuminates when engaging a target at 500 meters and changes when engaging a target at 10 meters; and it shall revert when moving back to the target at 500 meters.

4.6.4.11 Activation. The compliance of the OI device with 3.4.5 shall be verified by demonstrating that the laser is only active (firing) while the switch is being pressed and by visual inspection of the methods to prevent inadvertent firing.

4.6.4.12 Laser delay. The compliance of the OI device with 3.4.6 shall be verified by measuring the time that elapses between pressing the activation switch and the emission of visible laser energy.

4.6.5 Interface.

4.6.5.1 Tools. The compliance of the OI device with 3.5.1 shall be verified by demonstrating that no tools are needed for normal operation of the OI device.

4.6.5.2 System States: State Changes. The compliance of the OI device with 3.5.2 shall be verified by demonstrating that the OI device prevents accidental switching from the ‘OFF” state to the ‘ARMED’ state and that the OI device cannot be fired while it is in the ‘OFF’ state.

4.6.5.3 System States: Start-Up Time. The compliance of the OI device with 3.5.2.2 shall be verified by measuring the time required to transition from the ‘OFF’ state to the ‘ARMED’ state with a stopwatch.

4.6.5.4 Status Indicators. The compliance of the OI device with 3.5.3 shall be verified by demonstrating that the specified status indicators properly indicate the current state of the OI device.

4.6.5.5 Status Indicator Visibility. The compliance of the OI device with 3.5.3 shall be verified by operating the OI device in both daylight conditions (unaided eye) and night conditions (with NVG) during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.5.6 Remote Fire Switch: Functionality. The compliance of the OI device with 3.5.4.1 shall be verified by demonstrating that OI device can be fired via the remote fire switch.

4.6.5.7 Remote Fire Switch: Interface. The compliance of the OI device with 3.5.4.2 shall be verified by visual inspection.

4.6.5.8 Electrical Connectors. The compliance of the OI device with 3.5.5 shall be verified by visual inspection and by operating the remote fire switch per 4.6.5.6 after the completion of all tests in 4.6.9.

4.6.6 Human Systems Integration.

4.6.6.1 Physical Controls. The compliance of the OI device with 3.6.1 shall be verified by operating the OI device in the handheld and weapon-mounted configuration during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys.

4.6.6.2 Size and Shape. The compliance of the OI device with 3.6.2 shall be verified by operating the OI device in the handheld and weapon-mounted configuration during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys as well as comparing the hand size of operators with an anthropomorphic data set.

4.6.6.3 Soft Carrying Pouch. The compliance of the OI device with 3.6.3 shall be verified by visual inspection.

4.6.6.4 Integration with Mission Essential Gear. The compliance of the OI device with 3.6.4 shall be verified by demonstrating that the OI device can be operated while wearing the equipment listed in Table 3.6.4-1 during a user evaluation. Determination of compliance shall be through observations made by data collectors and the results of user surveys as well as comparing the hand size of operators with an anthropomorphic data set.

4.6.6.5 Gloved Operation. The compliance of the OI device with 3.6.5 shall be verified by performing all operations on an OI device, including attachment, alignment, battery replacement, and operation of the controls, while wearing while wearing any Marine Corps issued flame-resistant glove. The OI device shall be evaluated in both the weapon-mounted and handheld configurations.

4.6.6.6 Ease of Operation. The compliance of 3.6.6 shall be verified by demonstration that users shall be able to install, arm, fire, replace batteries, and clean lenses after a training course of the specified duration.

Determination of compliance shall be through observations made by data collectors to determine whether the user is capable of performing all of the listed operations without additional guidance.

4.6.7 Power.

4.6.7.1 Battery Life. The compliance of the OI device with 3.7.1 shall be verified by inserting new batteries into the system and placing it in a thermal chamber set to 0°C for at least one hour to allow for thermal equilibrium. Once thermal equilibrium has been achieved, the OI device shall be placed in the ‘ARMED’ state for the specified length of time. At the end of this period, the OI device shall be fired to the objective number 5-second engagements at full output power as possible; the number of engagements shall be recorded.

4.6.7.2 Battery Type. The compliance of the OI device with 3.7.2 shall be verified by visual inspection.

4.6.7.3 Battery Safety. The compliance of the OI device with 3.7.3 shall be verified by analysis of the design of the OI device battery compartment and its cover and by visual inspection thereof.

4.6.7.4 Battery Low-Power Indicator. The compliance of the OI device with 3.7.4 shall be verified by operating the OI device for as many five-second engagements at full output power as possible before the batteries are exhausted. The number of engagements before the low-power indicator appears shall be compared to the number of engagements after it appears to verify the accuracy of the indicator.

4.6.7.5 Battery Replacement. The compliance of the OI device with 3.7.5 shall be verified by demonstrating that the batteries can be replaced within the specified time in without removing the device from the weapon.

4.6.7.6 Battery Orientation. The compliance of the OI device with 3.7.5.2 shall be verified by visual inspection.

4.6.7.7 Reverse Voltage Protection. The compliance of the OI device with 3.7.6 shall be verified by installing the batteries with their polarities inverted from proper installation and placing the OI device in the ‘ARMED’ state for a period of at least ten minutes. After the time has elapsed, the batteries shall be reinstalled in the proper orientation and the OI device shall be powered-on and evaluated for damage or loss of functionality.

4.6.8 User Survivability.

4.6.8.1 Noise Emissions. The compliance of the OI device with 3.8.1 shall be verified by powering-on the OI device and performing all operations with the OI device in an anechoic chamber and recording the noise level, in dB(A), associated with each operation from a distance of 1 meter. These recorded values shall then be interpolated to determine the range at which the noise level would equal 45dB(A); noise levels below the background level shall be considered undetectable at any range. The interpolated ranges shall be compared to the requirement. OI device operations shall be performed using both the body controls and the remote fire switch. The noise emitted while removing the lens cover shall not be measured.

4.6.8.2 Laser Markings. The compliance of the OI device with the labeling requirements of 3.8.2 shall be verified by visual inspection.

4.6.8.3 Body Finish. The compliance of the OI device with 3.8.3 shall be verified by visual inspection.

4.6.8.4 Carcinogens. The compliance of the OI device with 3.8.4 shall be verified by analysis of the bills of material for all components of the OI device.

4.6.9 Environmental Resistance.

4.6.9.1 Operating Altitude. The compliance of the OI device with the operational requirements of 3.9.1 shall be verified by setting the OI device in the ‘ARMED’ state, placing it into a vacuum chamber, and setting the pressure to 1.05 atmospheres (1060 mbar) for at least one hour. When the hour has expired, the vacuum chamber’s pressure shall be ramped to 0.58 atmospheres of pressure (590 mbar) and held for at least one hour. Functionality of the OI device controls (both body controls and the remote fire switch) shall be evaluated at the end of each pressure soaking period. When the pressure cycle is complete, the vacuum chamber shall be returned to within 5 percent of one atmosphere and the OI device shall be inspected for physical damage or performance degradation.

4.6.9.2 Transportation Altitude. The compliance of the OI device with the non-operational requirement of

3.9.1 shall be verified by removing the batteries from the OI device, placing it into a vacuum chamber, and setting the pressure to 0.21 atmospheres (210 mbar) for a period of at least one hour. When the time has expired, the vacuum chamber shall be returned to within 5 percent of one atmosphere and the OI device shall be inspected for physical damage or performance degradation.

4.6.9.3 Operating Temperature. The compliance of the OI device with 3.9.2 shall be verified by placing the OI device, in the ‘ARMED’ state, into a temperature chamber programmed to reach the specified operating temperatures per the guidelines of MIL-STD-810G Methods 501.5 and 502.5 Procedure II (Operation). Functionality of the OI device controls and the output power of the laser shall be evaluated at the end of each temperature soaking period. When the temperature cycle is complete, the thermal chamber shall be returned to room temperature and the OI device shall be inspected for physical damage or loss of functionality.

4.6.9.4 Storage Temperature. The compliance of the OI device with 3.9.3 shall be verified by placing the OI device, in the ‘OFF’ state, into a temperature chamber programmed to reach the specified storage temperatures per the guidelines of MIL-STD-810G Methods 501.5 and 502.5 Procedure I (Storage).

When the temperature cycle is complete, the thermal chamber shall be returned to room temperature and the OI device shall be inspected for physical damage or loss of functionality.

4.6.9.5 Temperature Shock. The compliance of the OI device with 3.9.4 shall be verified by placing the OI device, in the ‘ARMED’ state, into a temperature chamber programmed to hold the OI device at the highest temperature listed in 3.9.2 for one hour, then ramping to the lowest temperature listed in 3.9.2 over the course of ten minutes. The OI device shall then be allowed to soak at the low temperature for one hour, at which point it shall be inspected for damage or internal condensation. Following the inspection, the OI device shall be returned to the temperature chamber, soaked at the low temperature for an hour, and then ramped to the high temperature over the course of ten minutes. After a final one-hour soak at the high temperature, the OI device shall be removed from the chamber, inspected for damage, internal condensation, or loss of functionality.

4.6.9.6 Solar Radiation. The compliance of the OI device with 3.9.5 shall be verified by the procedure outlined in MIL-STD-810G Method 505.5 Procedure I. The OI device shall be inspected for physical damage or loss of functionality after the exposure period is complete.

4.6.9.7 Immersion. The compliance of the OI device with 3.9.6 shall be verified by immersing the OI device in the appropriate depth of water. The OI device shall be immersed in two configurations: first with batteries installed and the system powered-on, and second with the battery compartment open and empty.

Fresh water may be used in place of salt water, but doing so requires an additional 3cm of depth per 1m of salt water depth. Testing in a pressurized chamber may be used to simplify the verification procedure.

Following the immersion procedure, the OI device shall be inspected for physical damage, loss of functionality, or water intrusion into the device.

4.6.9.8 Sand and Dust. The compliance of the OI device with 3.9.7 shall be verified by conducting the procedures outlined in MIL-STD-810G Method 510.5 Test…