[논문]야시조명계통 요구도 분석

권종광; 이대열; 김환우

야시조명계통 요구도 분석
Analysis of Requirements for Night Vision Imaging System 원문보기

韓國軍事科學技術學會誌 = Journal of the KIMST, v.10 no.3 = no.30, 2007년, pp.51 - 61

권종광 (국방과학연구소) , 이대열 (국방과학연구소) , 김환우 (충남대학교)

Abstract ▼ AI-Helper

This paper concerns about the requirement analysis for night vision imaging system(NVIS), whose purpose is to intensify the available nighttime near infrared(IR) radiation sufficiently to be caught by the human eyes on a miniature green phosphor screen. The requirements for NVIS are NVIS radiance(NR), chromaticity, daylight legibility/readability, etc. The NR is a quantitative measure of night vision goggle (NVG) compatibility of a light source as viewed through goggles. The chromaticity is the quality of a color as determined by its purity and dominant wavelength. The daylight legibility/readability is the degree at which words are readable based on appearance and a measure of an instrument's ability to display incremental changes in its output value. In this paper, the requirements of NR, chromaticity, and daylight legibility/readability for Type I and Class B/C NVIS are analyzed. Also the rationale is shown with respect to those requirements.

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문제 정의

This paper provides the analysis and rationale of NVIS requirements, especially NR, chromaticity, and daylight legibility/readability. This study has investigated that the colors of NVIS are Green A/B, NVIS Yellow, NVIS Red, and NVIS White.

가설 설정

The compatible lighting will not cause this interference so the pilot will have a clear image of the outside scene and will have the maximum NVIS sensitivity possible. The question is how much of this spectral radiance can be tolerated, how much spectral radiance causes interference, and how can this spectral radiance be quantified and measured.

제안 방법

In this paper, the requirements of NR, chromaticity and daylight legibility/readability for Type I and Class C NVIS, which are used in Korea military, are analyzed. Also, the rationale is shown with respect to those requirements.
Since a degradation of pilot performance due to color uniformity differences could not be substantiated, a decision was made to select a color and tolerance. Applying this criteria to the other factors that were influencing the primary color selection for NVIS compatible lighting as the area within a circle whose radius is 0.
These requirements were developed by the USAF and are similar to those written into MIL-D-87213A^[11] by the USAF. The rationale for a combined test is that in a fighter cockpit at high altitudes both conditions can exist simultaneously, so the test simulates a realistic environmental situation. The sunlight of 12,000fc to 15,000fc is reduced to 10,000fc after passing through the canopy striking off-axis(80～90% transmissivity).
The revised specification, MIL-L-85762A dated 26 August 1988, added the requirement for lighting that would be compatible with other types of NVISs. The revised specification covers all NVIS compatible lighting requirements including ANVIS which is referred to as one type of NVIS. Recently, the specification is revised MIL-STD3009 dated 2 February 2001, added the requirement for Class C NVIS and exterior lighting compatibility definitions and criteria^[7].
Because other types of NVISs had been developed and approved for use, MIL-L-85762 had to be revised. The revised specification, MIL-L-85762A dated 26 August 1988, added the requirement for lighting that would be compatible with other types of NVISs. The revised specification covers all NVIS compatible lighting requirements including ANVIS which is referred to as one type of NVIS.
. The scope of this specification establishes performance, general configuration, test and acceptance requirements for NVIS-compatible aircraft interior lighting. This specification gives NVG interference(NI) levels (i.

성능/효과

4) The NVG filtered radiated spectra of master caution and warning lights and displays should contain wavelengths within NVGs short wavelength response to attract the pilot's attention when looking through the goggles. The luminance level should be low enough to prevent interference with goggle operation.
This paper provides the analysis and rationale of NVIS requirements, especially NR, chromaticity, and daylight legibility/readability. This study has investigated that the colors of NVIS are Green A/B, NVIS Yellow, NVIS Red, and NVIS White. Also we present requirement analysis of illuminated visual signals, electronic and electro-optical displays intended to be daylight-readable, sunlight illuminance, and minimum contrast values.

참고문헌 (11)

Chris Johnson, 'The role of Night Vision Equipment in Military Incidents and Accidents', 2005
Agilent Technologies Application Note 1030, 'LED Displays and Indicators and Night Vision Imaging System Lighting', 1999
Lighting, Aircraft, Night Vision Imaging System(NVIS) Compatible', MIL-STD-3009, Feb., 2001
H. Lee Task, 'Night Vision Devices and Characteristics', NATO report, NITS No., AGARD-LS-187, pp. 71-78, 1992
J. K., KWON and W. W., KIM, 'Operation of Night Vision Goggle for Aircraft', Journal of the Korea Institute of Military Science and Technology(KIMST), Vol. 9, No. 2, pp. 34-41, 2006, 6
J. K., KWON and W. W., KIM, 'A Study of Human Considerations and Spatial Disorientation for Night Vision Goggle', Journal of the Korea Society for Aeronautical and Space Sciences(KSAS), Vol. 34, No. 12, pp. 96-100, 2006, 12
G. W. Godfrey, 'Principle of Display Illumination Techniques for Aerospace Vehicle Crew Station', ALI's Publishing Company Ltd., 1991
'Aircrew Station Alerting Systems', MILSTD- 411, Mar., 1997
'Switch, Push Illuminated, 4-Lamp(Modular Constructed)', MIL-S-22885, Feb. 1987
'Systems, Illuminated, Warning, Caution and Advisory, General Specification for', MIL-S- 38039, Apr., 1986
'Displays, Airborne, Electronically/Optically Generated', MIL-D-87213A, June, 1988

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야시조명계통 요구도 분석
Analysis of Requirements for Night Vision Imaging System 원문보기

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야시조명계통 요구도 분석 Analysis of Requirements for Night Vision Imaging System 원문보기

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야시조명계통 요구도 분석
Analysis of Requirements for Night Vision Imaging System 원문보기

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