VERNIER ACUITY THROUGH NIGHT-VISION GOGGLES

被引：5

作者：

RABIN, J

机构：

[1] U.S. Army Aeromedical Research Laboratory, Fort Rucker, AL

来源：

OPTOMETRY AND VISION SCIENCE | 1993年 / 70卷 / 08期

关键词：

NIGHT VISION GOGGLES; IMAGE INTENSIFIERS; VERNIER ACUITY; CONTRAST SENSITIVITY;

D O I：

10.1097/00006324-199308000-00019

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

Night vision goggles (NVG's) are being used increasingly in military and civilian environments. Despite the use of these devices, relatively few tests exist to assess visual performance through NVG's. Hyperacuity tasks may provide a sensitive index of performance through night vision devices. In this study, grating vernier acuity was measured through NVG's. As reported previously, a power law relation was observed between vernier acuity and stimulus contrast. Comparison of vernier acuity with and without NVG's indicated that performance is limited by the contrast transfer of the device. Vernier acuity measurements can be used to assess the quality of vision and quantity of contrast transferred through night vision devices.

引用

页码：689 / 691

页数：3

共 11 条

[1]

Wiley R.W., Holly F.F., Vision with the AN/PVS-5 night vision goggle, U.S. Army Aeromedlcal Research Laboratory, (1976)

[2]

Levine R.R., Rash C.E., Attenuating the luminous output of the AN/PVS-5A night vision goggles and its effects on visual acuity, U.S. Army Aeromedical Research Laboratory, (1989)

[3]

Wiley R.W., Visual acuity and stereopsls with night vision goggles, U.S. Army Aeromedical Research Laboratory, (1989)

[4]

Kotulak J.C., Rash C.E., Visual acuity with second and third generation night vision goggles obtained from a new method of night sky simulation across a wide range of target contrasts, U.S. Army Aeromedical Research Laboratory, (1992)

[5]

Westheimer G., Visual acuity and hyperacuity, Invest Ophthalmol, 14, pp. 570-572, (1975)

[6]

Foley-Fischer J.A., Contrast, edge-gradient, and target line width as factors in vernier acuity, Optica Acta, 24, pp. 179-186, (1977)

[7]

Wilson H.R., Responses of spatial mechanisms can explain hyperacuity, Vision Res, 26, pp. 453-469, (1986)

[8]

Bradley A., Skottun B.C., Effects of contrast and spatial frequency on vernier acuity, Vision Res, 27, pp. 1817-1824, (1987)

[9]

Krauskopf J., Farrell B., Vernier acuity: Effects of chromatic content, blur and contrast, Vision Res, 31, pp. 735-749, (1991)

[10]

RCA Electro-Optics Handbook, Electro-Optics handbook technical Series EOH-11, (1974)

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