This report describes two experiments with electroluminescent aircraft instrument lighting. In the first experiment, white electroluminescent, green electroluminescent, and red incandescent lighting were compared for their effects on dark-adapted, scotopic absolute and acuity thresholds, using a simulated T-38 instrument panel for light exposure. In the second experiment, white, green, and yellow electroluminescent and red incandescent light were compared in terms of legibility of a transilluminated letter-acuity chart. Exposure to red incandescent lighting at 0.05 ft.-l. produced the lowest absolute and acuity thresholds, with white and green electroluminescent producing higher thresholds in that order. Although threshold differences between lighting colors were statistically significant, the absolute differences in visual sensitivity were small for practical purposes. Luminances required for equal legibility of transilluminated letters of various sizes were about the same for red incandescent, and white, green, and yellow electroluminescent lamps. Electroluminescent lighting of aircraft instruments is discussed.
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References
1.
AGARD.Aircraft instrument and cockpit lighting by red or white light. Symposium at Rhode-Saint-Genèse, Belgium, Conference Proceedings No. 26, October, 1967.
2.
BakerC. A.GretherW. F.Visual presentation of information. In MorganC. T.CookJ. S.ChapanisA.LundM. W. (Ed.) Human engineering guide to equipment design.New York: McGraw-Hill, 1963.
3.
BauerR. W.Night flight vision: II. Psychophysical comparisons of three colors of cockpit lighting. U.S. Army: Technical Memorandum 13–68. Human Engineering Laboratories, Aberdeen Proving Ground, Maryland, October 1968.
4.
ChalonerA. B.Assessment of red and white illumination for equal legibility. NATO AGARD Conference: Aircraft instrument and cockpit lighting by red or white light, October 1967.
5.
ColeE. L.McintoshB. B.GretherW. F.Brightness levels of three instrument lighting systems used by pilots flying at night. USAF: AFTR 6031. Air Materiel Command, Wright-Patterson AFB, Ohio, August 1950.
6.
DeGinderW. L.Red light blindness. Flying, August 1967.
7.
DohrnR. H.Luminance measurements for red- and white-lighted aircraft instruments. NATO AGARD Conference: Aircraft instrument and cockpit lighting by red or white light, October 1967.
8.
DohrnR. H.Near visual acuity under low-level red and white light. USAF: SAM-TR-68-119. School of Aerospace Medicine, Brooks AFB, Texas, October 1968.
9.
FraizerJ. J.Electroluminescent lighting of aircraft instruments. USAF: WADC-TR-58-510. Wright Air Development Center, Wright-Patterson AFB, Ohio, September 1958.
10.
FrostJ. S.HoffmanC. S.Functional evaluation of multicolor electroluminescent status displays. C8-420/301. Autonetics Division, North American Rockwell Corporation, February 1968.
11.
FrostJ. S.WrightR. H.Functional evaluation of electroluminescent pictorial status displays. C7-1794/301. Autonetics Division, North American Rockwell Corporation, July 1967.
12.
FullerP. R.Test and evaluation of two high-contrast electroluminescent displays under a wide range of ambient lighting conditions. Engineering Memorandum Report No. 191. Grand Rapids, Michigan: Lear Siegler Instrument Division, May 1966.
13.
GeldardF.The human senses.New York: Wiley, 1953.
14.
GibneyT. K.Legibility of segmented versus standard numerals: the influence of the observer's task. USAF: AMRL-TR-68–124. Aerospace Medical Research Laboratory, Wright-Patterson AFB, Ohio, August 1968.
HulbertE. O.Time of dark adaptation after stimulation by various brightnesses and colors. Journal of the Optical Society of America, 1951, 41, 402–404.
21.
HurvichL. M.JamesonDorothea.The perception of brightness and darkness.Boston: Allyn and Bacon, 1967.
22.
IntanoG. P.Legibility of various sized letters under aviation red, “lunar,” and neutrally-filtered incandescent white lighting systems. NATO AGARD Conference: Aircraft instrument and cockpit lighting by red or white light, October 1967.
IveyH. F.Electroluminescence and related effects.New York: Academic Press, 1963.
25.
IveyH. F.Electroluminescence seen in 1907. Science, 1969, 164, 1342.
26.
JolleyC. J.PlanetJ. M.White lighting of instruments in USAF aircraft. NATO AGARD Conference: Aircraft instrument and cockpit lighting by red or white light, October, 1967.
LincolnR. S.Human factors evaluation of two prototype electroluminescent meter scales. LMSC-667806. Lockheed Missiles and Space Company, Bioastronautics Division, August 1965.
29.
LuriaS. M.SchwartzI.Visual acuity under red versus white illumination. Report No. 326. U.S. Naval Medical Research Laboratory, New London, Connecticut, January 1960.
30.
MartinL. C.PearseR. W. B.The comparative visual acuity and ease of reading in white and colored light. British Journal of Ophthalmology, 1947, 31, 129–144.
31.
MillerG. E.McLeanM. V.Legibility of electroluminescent diplays as a function of character size, ambient illumination, and contrast. Downey, California: North American Space and Information Systems Division, April 1965.
32.
PeskinJ. C.BjornstadJ. M.The effect of different wavelengths of light on visual sensitivity. USAF: Memorandum Report MCREXD-696–93A. Aero Medical Laboratory, Air Materiel Command, Wright-Patterson AFB, Ohio, June 1948.
33.
PetersonC. J.SmithH. A.Development of high contrast electroluminescent techniques for aircraft displays. USAF: AFFDL-TR-66–6. Air Force Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio, April 1966.
34.
PetertylS. V.FullerP. R.Improved contrast and visibility for electroluminescent displays. Paper presented to the 18th Annual National Aerospace Electronics Conference, Dayton, Ohio, May 1966.
35.
PetertylS. V.FullerP. R.WysockiC. A.Development of high contrast electroluminescent displays. USAF: AFFDL-TR-66–183. Air Force Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio, March 1967.
36.
PizzicaraD. J.Electroluminescence: an appraisal for avionic display applications. Technical Memorandum 66–49, Publication No. 4730. Litton Systems, Inc., February 1966 (AD 656 733).
37.
ReynoldsH. N.GretherW. F.Effects of color of instrument lighting on absolute and acuity thresholds with exposure to a simulated instrument panel. Aerospace Medicine, 1968, 39, 1304–1309.
38.
ReynoldsH. N.PlanetJ. M.The visual effects of exposure to red, unfiltered white, and blue-filtered white aircraft instrument lighting. Paper presented at the meeting of the Society of Automotive Engineers, A20-A Committee on Aircraft Lighting, Wichita, Kansas, April 1968.
39.
SiegelS.Nonparametric statistics for the behavioral sciences.New York: McGraw-Hill, 1956.
40.
SmithH. A.GoddardC.Effects of cockpit lighting color on dark adaptation. USAF: AFFDL-TR-67–56. Air Force Flight Dynamics Laboratory, Wright-Patterson AFB, Ohio, May 1967.
41.
StensonH. H.Human factors in the design of electroluminescent displays for aerospace equipment. USAF: AMRL-TR-66–130. Aerospace Medical Research Laboratory, Wright-Patterson AFB, Ohio, September 1966.
WhitesideT. C. D.Red versus white aircraft instrument and cockpit lighting. USAF Medical Service Digest, 1968, 19 (5), 21–23.
44.
WrightR. H.FrostJ. S.Functional evaluation of an electroluminescent display for control of a submersible vehicle. C7-2191/301. Autonetics Division, North American Rockwell Corporation, September 1967.
