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Class Information
Number: 250/205
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controls its own optical systems > Controlling light source intensity
Description: Subject matter having means for controlling the intensity of the light source which illuminates the photoelectric cell in accordance with the illumination which falls upon the photoelectric cell.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619193 |
System and method for controlling a LED luminary |
Nov. 17, 2009 |
| 7619192 |
Direct backlight module using optical feedback |
Nov. 17, 2009 |
| 7619194 |
Electro-optical device, semiconductor device, display device, and electronic apparatus having the display device |
Nov. 17, 2009 |
| 7608806 |
Multiple parameter laser power control with automatic compensation |
Oct. 27, 2009 |
| 7608808 |
Injection-locked pulsed laser with high wavelength stability |
Oct. 27, 2009 |
| 7608807 |
Closed loop daylight harvesting light control system having auto-calibration |
Oct. 27, 2009 |
| 7604922 |
Process of surface treatment, surface treating device, surface treated plate, and electro-optic device, and electronic equipment |
Oct. 20, 2009 |
| 7595473 |
Method and system of array imaging |
Sep. 29, 2009 |
| 7592574 |
Light source control apparatus, image reading apparatus, image forming apparatus, medium storing light source part control program, and method for controlling of light source part by adjusting |
Sep. 22, 2009 |
| 7592583 |
Photosensor with customizable angular-response characteristics |
Sep. 22, 2009 |
| 7589303 |
Method of determining and/or evaluating a differential optical signal |
Sep. 15, 2009 |
| 7586073 |
Imaging system with high-spectrum resolution and imaging method for the same |
Sep. 8, 2009 |
| 7576309 |
Illuminating device, electro-optical device, and electronic apparatus |
Aug. 18, 2009 |
| 7576315 |
Scanning type image display apparatus having a synchronization control circuit and a light transmitting area on the last surface of a scanning optical system |
Aug. 18, 2009 |
| 7573012 |
Photo driver circuit with power saving function and method thereof |
Aug. 11, 2009 |
| 7569807 |
Light source with photosensor light guide |
Aug. 4, 2009 |
| 7569802 |
Photosensor control unit for a lighting module |
Aug. 4, 2009 |
| 7566359 |
Ultraviolet lamp with absorptive barrier |
Jul. 28, 2009 |
| 7566862 |
Device, method, and program for responding based on change in wavelength of light |
Jul. 28, 2009 |
| 7566852 |
Driving circuit for backlight module |
Jul. 28, 2009 |
| 7566851 |
Headlight, taillight and streetlight detection |
Jul. 28, 2009 |
| 7564014 |
Apparatus for detecting welding light and protecting eyes from glare and method for controlling the same |
Jul. 21, 2009 |
| 7560677 |
Step-wise intensity control of a solid state lighting system |
Jul. 14, 2009 |
| 7557332 |
Driver circuit for driving a light source of an optical pointing device |
Jul. 7, 2009 |
| 7554065 |
Illuminance sensor determining the duty ratio of a PWM signal based on a digital output of an A/D converter and light control apparatus |
Jun. 30, 2009 |
| 7554722 |
Scanning microscope with scanner frequency derived from pulsed laser |
Jun. 30, 2009 |
| 7550702 |
Electro optical device, method for correcting light intensity of an electro optical element, and electronic apparatus |
Jun. 23, 2009 |
| 7547869 |
Illumination system calibration and operation having a calibration matrix calculation based on a shift in color space |
Jun. 16, 2009 |
| 7547875 |
Absolute type encoder apparatus and method for operating the same |
Jun. 16, 2009 |
| 7541566 |
Transmitter, receiver, and system with relative position detecting functionality between transmitters and receivers |
Jun. 2, 2009 |
| 7541570 |
Vehicle rearview mirror system |
Jun. 2, 2009 |
| 7538306 |
Illumination device |
May. 26, 2009 |
| 7538305 |
Photo sensor, display panel having the same and display device having the display panel |
May. 26, 2009 |
| 7534987 |
Light measuring apparatus |
May. 19, 2009 |
| 7534994 |
Laser scanning system employing laser mode switching using a binary mode switching signal |
May. 19, 2009 |
| 7534990 |
Compact optical delay devices |
May. 19, 2009 |
| 7531776 |
Photodetector, electro-optical device, and electronic apparatus having a differential current detection circuit |
May. 12, 2009 |
| 7528950 |
Tunable laser-based process monitoring apparatus |
May. 5, 2009 |
| 7525084 |
Input device, electronic apparatus and method for controlling input device |
Apr. 28, 2009 |
| 7525654 |
Tunable laser-based chemical imaging system |
Apr. 28, 2009 |
| 7521667 |
Intelligent solid state lighting |
Apr. 21, 2009 |
| 7514662 |
Illuminating device, electro-optical device, and electronic apparatus |
Apr. 7, 2009 |
| 7514666 |
Composite receiver assembly having a circuit board on which multiple receiver devices that operate on different sets of wavelengths are mounted |
Apr. 7, 2009 |
| 7507942 |
Illumination apparatus that suppresses light intensity distribution irregularity and projection-type display apparatus using the illumination apparatus |
Mar. 24, 2009 |
| 7507943 |
Light source for LCD with individually controlled sections |
Mar. 24, 2009 |
| 7504610 |
Optical modulation amplitude compensation system having a laser driver with modulation control signals |
Mar. 17, 2009 |
| 7501613 |
Light detecting and angle of view compensation for optical devices and method |
Mar. 10, 2009 |
| 7498553 |
Image reading device |
Mar. 3, 2009 |
| 7498552 |
Calibratable microwave circuit with illuminable GaAs-FET, calibrating device and process |
Mar. 3, 2009 |
| 7485847 |
Displacement sensor employing discrete light pulse detection |
Feb. 3, 2009 |
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