Optics: measuring and testing – Photometers – Comparison
Patent
1997-04-14
1999-07-20
Font, Frank G.
Optics: measuring and testing
Photometers
Comparison
34081575, 340525, G01J 110, G08B 2500
Patent
active
059262656
ABSTRACT:
An instrument and method for optically calibrating and balancing low level luminances of lighted instrument panel displays within the operator station of a vehicle is described which comprises a self-contained, calibrated luminance source and a beamsplitter for combining and juxtaposing an image of the calibrated luminance source with an image of the luminance from a lighted instrument panel display to be calibrated or balanced, whereby the images may be compared in luminance, the lighted instrument panel display being adjustable in intensity using the vehicle instrument panel light trim capability.
REFERENCES:
patent: 3632217 (1972-01-01), Bartleson
patent: 5198797 (1993-03-01), Daidoji
Pinkus Alan R.
Task Harry L.
Font Frank G.
Kundert Thomas L.
Scearce Bobby D.
Smith Zandra V.
The United States of America as represented by the Secretary of
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