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| Title: | Cold Weather Goggles. V. Acceptable Limits Of Optical Distortion |
| Authors: | NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT
Luria, SM
Rodriguez, R |
| Keywords: | OPTICAL PROPERTIES
PERFORMANCE TESTS
COLD WEATHER
GOGGLES
TEST AND EVALUATION
PERFORMANCE(ENGINEERING)
FIELD TESTS
DEPTH
DISTORTION
NAVAL RESEARCH
VISUAL PERCEPTION
COMMERCIAL EQUIPMENT
SENSITIVITY
ACUITY
CONTRAST
DEGRADATION |
| Issue Date: | 1983 |
| Abstract: | Contrast sensitivity, acuity through binoculars, depth perception, and riflery were measured as subjects looked through goggles with various degrees of optical distortion. The amount of distortion necessary to produce a statistically significant degradation of performance was determined for each task in order to specify the maximum allowable optical distortion in goggles. The degree of distortion was quantified by projecting a Snellen chart through the goggles and determining the Snellen line which could then be read. By this criterion, the maximum permissible distortion is that which degrades acuity from 20/20 to the 20/30 line. |
| Description: | Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. |
| Gov't Doc # : | ADA127657
NSMRL-998
XB-NSMRL |
| URI: | http://archive.rubicon-foundation.org/8946 |
| Appears in Collections: | Naval Submarine Medical Research Lab (NSMRL)
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| NSMRL_998.pdf | 1238Kb | Adobe PDF | View/Open |
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