System for adjusting a light source by sensing ambient illumination
First Claim
Patent Images
1. A system for adjusting the illumination of an interior space, comprising:
- a light source including a phosphor coating;
said phosphor coating includes a residual glow;
a lamp driver circuitry deposed to control said light source brightness;
an illumination sensor disposed to detect an illumination of the interior space and provide an illumination signal;
a color balance adjustment input disposed to provide a color balance adjustment signal;
a processor disposed to receive said illumination signal, to receive said color balance adjustment signal, and to provide an output color selection signal;
said processor provides an algorithm for generating a plurality of periodic short anti-bursts of generated light wherein during each anti-burst of generated light, said light source is momentarily, partially, and substantially dimmed for a period short enough to produce no visible flicker and for a period long enough to provide a portion where said residual glow detected by said illumination sensor is minimized;
said anti-burst of generated light includes an end period defined by said portion;
said processor measures said illumination signal only during said end period of anti-burst of generated light;
said processor, in response to said illumination signal adjusts said output color selection signal; and
said lamp driver circuitry, responsive to said output color selection signal adjusts said light source brightness.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and system for adjusting a light source that is capable of displaying light of different colors receives inputs from various sources and provides an output color selection signal. The output color selection signal is applied to the light source to adjust the intensity and color thereof.
36 Citations
10 Claims
-
1. A system for adjusting the illumination of an interior space, comprising:
-
a light source including a phosphor coating; said phosphor coating includes a residual glow; a lamp driver circuitry deposed to control said light source brightness; an illumination sensor disposed to detect an illumination of the interior space and provide an illumination signal; a color balance adjustment input disposed to provide a color balance adjustment signal; a processor disposed to receive said illumination signal, to receive said color balance adjustment signal, and to provide an output color selection signal; said processor provides an algorithm for generating a plurality of periodic short anti-bursts of generated light wherein during each anti-burst of generated light, said light source is momentarily, partially, and substantially dimmed for a period short enough to produce no visible flicker and for a period long enough to provide a portion where said residual glow detected by said illumination sensor is minimized; said anti-burst of generated light includes an end period defined by said portion; said processor measures said illumination signal only during said end period of anti-burst of generated light; said processor, in response to said illumination signal adjusts said output color selection signal; and said lamp driver circuitry, responsive to said output color selection signal adjusts said light source brightness. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification