1、MIL-PRF-490b5F 999990b 208bbb9 070 R INCH-POUND MIL-PRF-49065F 4 March 1999 Superseding MIL-N-4 9065E O1 September 1981 PERFORMANCE SPECIFICATION NIGHT VISION GOGGLES, AN/PVS-S( ) This specification is approved by the U.S. Army Communications- Electronics Command (CECOM), Department of the Army, and
2、 is available for use by all departments and agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the Night Vision Goggles, AN/PVS-5( ) (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. The documents in this section are specified in sections 3 and 4 of this specificatio
3、n. This section does not include documents 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 must meet all specified requirements cited in
4、sections 3 and 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, and deletions) and any pertinent data which may be of use in improving this document should be addressed to: HQ, USA Communications-Electronics Command, ATTN: AMSEL- LC-LEO-E-EP,
5、Fort Monmouth, NJ 07703-5023, by using the Standardization Document Improvement Proposal (DD Form 1426) or by letter. AMSC N/A FSC 5855 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesMIL-PRF-47065F I O6 2086670 892 MIL-PRF-4
6、 9065F SPEC I FI CAT IONS MI LI TARY MIL-PRF-49052 - Image Intensifier Assembly, 18 MM Microchannel Waf er , MX- 9 9 16 /UV MIL-PRF-49156 - Lens Assembly, Eyepiece, For Night Vision Goggles, MIL-PRF-49157 - Lens Assembly, Objective, For Night Vision Goggles, AN/PVS-5( ) ANIPVS-5 ( ) STAN DARDS MILIT
7、ARY MIL-STD-461 - Electromagnetic Interference Characteristics For MIL-STD-462 ,- Electromagnetic Interference Characteristics, Equipment, Subsystem And System Measurement Of 2.1.1 Reference documents, drawings, and publications. The following other Government documents, drawings, and publications f
8、orm a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2.b). DRAWINGS USA COMMUNICATIONS-ELECTRONICS COMMAND SM-D-657500 - SM-C-657428 - SM-C-804193 - SM-D-657310 - SM-D-657337 - 314 4 4 ao - A3 13 9220 SM-D-65730
9、2 - SM-C-657443 - SM-D-657430 - SM-D-657440 - - A6169235 - Night Vision Goggles , AN/PVS-5 ( ) and all associated drawings Demisting Shield Assembly Objective Lens Assembly F/1.05 Eyepiece Assembly Image Intensifier, Night Vision Frame Assembly Mask Assembly Cushion Assembly, Face Light Emitting Dio
10、de Assembly Case Assembly, Carrying Case Assembly, Shipping and Storage Detector, Highlight Shutdown (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directe
11、d by the contracting officer.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption
12、has been obtained. 2 Licensed by Information Handling ServicesMIL-PRF-49065F 999990b 2086673 729 MIL-PRF-49065F 3. REQUIREMENTS 3.1 Description. The AN/PVS-5( ) Night Vision Goggles consists of a goggle assembly, a carrying case, a shipping/storage case, and ancillary equipment. The goggle assembly,
13、 which is referred to hereinafter as the assembly, is a lightweight, headmounted, self-contained night vision system containing two monocular units comprising a binocular system. Each monocular unit consists of an objective lens assembly, an image intensifier assembly, and an eyepiece assembly. The
14、frame, containing the two monocular units, is mounted to a face mask assembly which is held by head straps to the users head. The assembly incorporates an infrared (IR) light emitting diode (LED) assembly which provides illumination, when required, to permit close-in-viewing; the assembly also incor
15、porates a highlight shutdown detector which turns off the assembly in a specified time range when exposed to a specified light level range. The assembly permits the user to view at ranges of ten inches to infinity by means of a focus adjustment. 3.2 Construction. The assembly shall be constructed to
16、 comply with the performance requirements in the contract, drawing SM-D-657500 as applicable, and as specified herein. 3.3 First article test inspection. When specified in the contract or purchase order, the contractor shall furnish assemblies for first article test (FAT) inspection and approval (se
17、e 6.2.e). 3.4 Parts and materials. The contractor shall select parts and materials fully capable of meeting all operational and environmental requirements specified herein. The materials specified on the applicable drawings are recommended, but not mandatory. Verification that the assembly meets the
18、 overall performance requirements shail be the governing acceptance standard. 3.5 Major components. Requirements for conformance inspection shall be as specified in the contract or purchase order (see 6.2.e). 3.5.1 accordance 3.5.2 accordance .3.5.3 accordance Demisting shield assembly. The demistin
19、g shield assembly shall be in with drawing SM-C-657428 as applicable. Lens assembly, objective. The objective lens assembly shall be ir. with MIL-PRF-49157 and drawing A3144480 as applicable. Lens assembly, eyepiece. The eyepiece lens assembly shall be in with MIL-PRF-49156 and drawing SM-C-804193 a
20、s applicable. 3.5.4 Image intensifier assembly. The image intensifier assembly shall be in accordance with MIL-PRF-49052 and drawing SM-D-657310 as applicable. 3.5.5 Frame assembly. The frame assembly shall be in accordance with drawing SM-D-657337 as applicable. 3.5.6 Face Mask assembly. The face m
21、ask assembly shall be in accordance with drawing A3139220 as applicable. 3.5.7 Cushion assembly, face. The face cushion assembly shall be in accordance with drawing SM-D-657302 as applicable. 3 Licensed by Information Handling ServicesflIL-PRF-47065F 0b 20hb72 hb5 = MIL-PRF-49065F 3.5.8 Light emitti
22、ng diode assembly. The light emitting diode assembly shall be in accordance with drawing SM-C-657443 as applicable. 3.5.9 Case assembly, carrying. The carrying case assembly shall be in accordance with drawing SM-D-657430 as appiicab1.e. 3.5.10 Case assembly, shipping and storage. The shipping and s
23、torage case assembly shall be in accordance with drawing SM-D-657440 as applicable. 3.5.11 Detector, highlight shutdown. The highlight shutdown detector shall be in accordance with drawing A3139235 as applicable. 3.6 Performance characteristics. 3.6.1 Controls and adjustments. 3.6.1.1 Rotary switch.
24、 The rotary switch shall rotate to 3 distinct positions. In the “OFF“ position, neither one of the imaqe intensifier tubes nor the infrared (IR) LEC shall light. In the “ON“ position, -both of the image intensifier tubes shall light and the IR LED shall not light. In the “PULL IR“ position, both of
25、the image intensifier tubes shall light and the IR LED shall light. 3.6.1.2 Interpupilary adjustment. With the clamp lever tightened, both monocular assemblies shall be held so as to prevent loss of adjustment. With the clamp lever loosened, monoculars shall be capable of movement throughout their e
26、ntire interpupilary adjustment range. 3.6.1.3 Relative movement of binocular assembly. The binocular assembly shall be capable of movement relative to the face mask when the two clamp knobs are loosened. The self-locking hex nut shall permit the clamp knob to be loosened while at the same time retai
27、ning it on the shouldered screw. 3.6.2 Resolution. 3.6.2.1 Far focus. Each monocular assembly shall have an on-axis resolution ar th.e infinity stop of not less than 20 line pairs per millimeter (lp/mm) or 5 lp/m less than the maximum tube resolution of the monocular, whichever is greater, and shall
28、 have an on-axis resolution at the true infinity setting of not less than 23 lp/m, or 4 lp/mm less than the maximum tube resolution of each monocular, whichever is greater. 3.6.2.2 Close focus. Each monocular assembly shall have an on-axis resolution at the close focus stop of not less than 23 lp/m
29、for a target at a distance of not more than 25 centimeters (cm). 3.6.3 Brightness gain. The brightness gain shall not be less than 400 footlamberts per footlambert. greater than 3 percent of the average gain when the assembly is subjected to steady input illumination. There shall be no change in bri
30、ghtness gain 4 Licensed by Information Handling ServicesMIL-PRF-4SObSF m 99999Ob 20bb73 5TL MIL-PRF-49065F 3.6.4 Collimation. When two, parallel beams of collimated light are projected into the objective lens assemblies, with both objective lens assemblies adjusted to and operating in the infinity f
31、ocus position, and both eyepiece lens assemblies set at zero diopter, the conjugate beams emerging from the two eyepieces shall be collimated within 1 divergence/convergence in the horizontal plane and within 1/2“ divergence in the vertical plane. 3.6.5 Focus adjustment. The torque required to adjus
32、t the focus range shall be 25 inch-ounces -I 15. 3.6.6 Diopter focus. The minimum diopter focus range shall be from t2 diopters to -6 diopters at a 15 mm eye relief. The torque required to adjust the eyepiece diopter focus shall be 57 inch-ounces f 47. 3.6.7 Highlight shutdown capability. The highli
33、ght shutdown detector shall turn off the assembly within 70 seconds f 30 when ambient brightness exceeds 4 foot-candles at the photodetector. After the assembly is turned off by the highlight shutdown detector, the rotary switch must be positioned to “OFF“ and then “ON“ to resume assembly operation.
34、 3.7 Environmental characteristics. 3.7.1 Temperature extremes. The assembly shall not be damaged (see 3.11.1) by storage in any temperature t23“C to +65C or +23C to -51C or by operation at any temperature from t23“C to +45OC or from +23C to -51OC. The assembly shall not be-damaged -(see 3.1.1.1) af
35、ter being subjected to repetitive temperature- changes between +23C to +65“C in a 5 minute period and between +23C to -51C in a 5 minute period. Soak time at temperature extremes shall be sufficient for the entire assembly to attain stabilization. Time for temperature stabilization is defined as the
36、 amount of time required for the most internal part to achieve the specified temperature. Validation of operation shall be observance of a green glow at the eyepiece at operating temperatures and, at low operating temperature, the ability to operate all controls with arctic gloves or equivalent. 3.7
37、.2 Humidity. The assembly shall not be damaged (see 3.11.1) nor suffer degradation of performance (see 3.11.3) after being subjected to an atmosphere with a relative humidity of 95 percent f 5 over a temperature range of 20C to 65C. 3.7.3 Vibration. The assembly shall operate during, and not be dama
38、ged (see 3.11.1) by, vibrations in the frequency range of 10 hertz (Hz) to 55 Hz. 3.7.4 Immersion. The assembly shall not be damaged (see 3.11.1) and shall operate without degradation (see 3.11.3) of performance after being immersed in fresh water to a depth of not less than 3 feet or a period of no
39、t less than 30 minutes. 3.7.5 Electromagnetic interference. The assembly shall meet the Class A3 requirements of MIL-CTD-461 and MIL-STD-462. The required tests are RE02, RSO1, RC02, and RC03. 5 Licensed by Information Handling ServicesNIL-PRF-49065F W 0b 20bb74 438 H MIL-PRF-49065F 3.7.6 Interchang
40、eability. Objective lens assemblies and eyepiece lens assemblies shall be physically interchangeable between goggles assemblies without degradation of resolution (see 3.6.2) or diopter focus (see 3.6.6). These interchanges shall be made without modification or adjustment beyond that necessary during
41、 replacement of any of the parts or assemblies involved. 3.8 Treatment and paintinq. Treatment and painting shall be anti- reflective, shall be rust resistant and as specified on the applicable drawinq _ unless otherwise specified in the contract. 3.9 Marking. Marking shall be in accordance with app
42、licable drawings unless otherwise specified In the contract. 3.10 Workmanship. Standards of workmanship shall be such that the assembly will meet all requirements of this specification and any referenced specifications or drawings. 3.11 Technical interpretations. The following technical interpretati
43、ons are, when referenced in sections 3 or 4, mandatory for this specification. 3.11.1 Damage. Damage is defined as: a. An electrical failure or malfunction including arcing, corona, intermittent operation, or flickering. b. Brittleness, cracking, corrosion, failure of finish, dents or breakage of an
44、y hardware, or change in binocular alignment. c. Leakage resulting in condensation, fogging, or moisture on any internal surface. 3.11.2 Ambient (room) temperature. Ambient (room) temperature is defined as 23OC k 10 Co. 3.11.3 Degradation. Degradation is defined as a significant change in measurable
45、 characteristics which results in failure of the assembly to meet specified requirements or indicates that there is an inherent defect in the operating characteristics of the unit. , 3.11.4 Environmental temperature. Environmental chamber temperatures shall be controlled within f5C0 of the specified
46、 temperature unless otherwise specified. 4. VERIFICATION 4.1 Classification of inspections. Inspections shall be classified as follows : a. First article test inspection (see 4.2). b. Conformance inspection (see 4.3) 4.2 First article test (FAT) inspection. Unless otherwise specified in the contract
47、 or purchase order (see 6.2.e), FAT inspection shall be performed by the contractor. Upon completion of FAT inspection, the disposition of the FAT assemblies shall be as specified in the contract or purchase order (see 6.2.f). 6 Licensed by Information Handling ServicesMIL-PRF-49065F iO6 2086675 374
48、 W Test Controls and adjustments Brightness gain Collimation Focus adjustment Diopter focus Highlight shutdown capability Resolution MIL-PRF-49065F Re qui rement Paragraph 3.6.1 3.6.3 3.6.4 3.6.5 3.6.6 3.6.7 3.6.2 I Temperature extremes 4.2.1 First article testing. Each assembly shall be subjected t
49、o the inspections of Table I. Samples selected from the first production lot shall be 3.7.1 subjected to the inspections of Table II. Sample size shall be as specified in the contract or purchase order (see 6.2.e). Inspections may be conducted in any order except that the resolution inspection shall be performed last. Failure of any inspection shall be cause for rejection of that assembly and may be cause for failure of the FAT. Table I. Unit first article test insoection Humidit y Vibration Immer sion Interchangeability Demisting shield assembly Resolut
