Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Radiant energy control of an electric discharge device in...
Patent
1993-01-15
1995-06-06
Pascal, Robert J.
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Radiant energy control of an electric discharge device in...
315151, 315158, 315DIG4, H05B 3702
Patent
active
054225442
ABSTRACT:
Light control apparatus and method in which commanded changes in luminance in a space are executed in accordance with a rate function generated by a function generator to correspond to adaptability of the human eye to changes in luminance. A luminance sensor detects the luminance to which a person occupying the space was exposed just prior to the commanded change in luminance. The sensed luminance is used to determine the discrimination range of the occupant, and, upon a commanded increase in luminance in the space, the luminance is immediately increased to within the range.
REFERENCES:
patent: 2882450 (1959-11-01), McCabe
patent: 4636774 (1987-01-01), Galvin et al.
patent: 5015924 (1991-05-01), Berman et al.
patent: 5143437 (1992-09-01), Matsuno et al.
Giddings Richard V.
Metz Stephen V.
Honeywell Inc.
Pascal Robert J.
Philogene Haissa
Rubow Charles L.
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