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| Title: | Cold Weather Goggles. Iv. Optimal Density. |
| Authors: | NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT
Luria, SM |
| Keywords: | GOGGLES
OPTICAL FILTERS
EYEGLASSES
DENSITY
OPTIMIZATION
NEUTRAL
RESOLUTION
INTENSITY
LIGHT
HUMAN FACTORS ENGINEERING
BRIGHTNESS
COLORS
EYE
COLD WEATHER
VISUAL ACUITY
SUNLIGHT |
| Issue Date: | 1983 |
| Abstract: | Light- and dark-eyed observers, ranging in age from 17 to 67, compared six pairs of sunglasses whose neutral density filters transmitted either 0.8, 2.5, 4.8, 8.9, 15.8, or 91.2% of the light. The sunglasses were worn in bright sunlight both in summer and winter and rated for comfort as to the light-level which they admitted to the eyes. In addition, the observers took a test of resolution acuity with each pair of filters. Observers of both eye-colors and of every age-group preferred, on the average, sunglasses which reduced the light-level to 300-400 footcandles. These preferred filters are much denser than typical commercial sunglasses. Resolution acuity declined significantly for the older observers with filters denser than the preferred ones. (Author) |
| 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 # : | ADA127427
NSMRL-996 |
| URI: | http://archive.rubicon-foundation.org/8944 |
| Appears in Collections: | Naval Submarine Medical Research Lab (NSMRL)
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| NSMRL_996.pdf | 906Kb | Adobe PDF | View/Open |
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