System for the display of luminous data with improved readabilit

Details System for the display of luminous data with improved readabilit System for the display of luminous data with improved readabilit

1989-05-30

1991-10-15

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

With radiant energy sensitive control means

358168, H01J 3126

Patent

active

050577441

ABSTRACT:
A luminous data display system is used to improve readability depending on fluctuations in the light environment. It has automatic means to adjust the luminance of the image produced on a screen. These means use a first sensor close to the screen to obtain an indication of the ambient illumination received by the screen, and a second sensor, preferably placed on the helmet, to appreciate the distribution of luminance perceived in the observer's field of vision. Circuits process the detected signal and a manual adjustment signal to produce a correction signal applied to the image video signal.

REFERENCES:
patent: 3715617 (1973-02-01), Tilton et al.
Patent Abstract of Japan, vol. 9, No. 65, (E-304) (1788), Mar. 26, 1985, Ootake.

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