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DTIC ADA145395: Brightness Comparison of Electroluminescent versus ... |
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by Defense Technical Information Center |
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Previous studies involving the brightness comparison of |
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electroluminescent (EL) versus incandescent (INC) |
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lighting indicated that observers saw the EL light as |
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being 'brighter' than the INC light even when both lights |
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were photometrically identical. The intent of this |
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experiment was to determine if a perceptual process was |
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present that inhibited the direct photometric measurement |
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of EL lighting. Twelve observers were asked to compare a |
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variable EL light with a fixed INC light. Nine different |
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brightness levels of the EL light were tested. Subjects |
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were asked to rate if the test lamp (EL) was higher, |
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lower, or the same as the reference lamp (INC). The |
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results from this study showed no difference between the |
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two types of lighting; this in turn validates the use of |
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photometry to measure EL lighting directly. |
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Date Published: 2018-01-22 04:00:16 |
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Identifier: DTIC_ADA145395 |
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Item Size: 16717056 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Perry, Mary D.; AIR FOR... |
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