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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 |
| 7459660 |
System and method for calibrating light emitting device |
Dec. 2, 2008 |
| 7459661 |
System for evaluating luminance and movement within an observation space, and method for controlling light sources within the observation space |
Dec. 2, 2008 |
| 7459666 |
Battery compartment adapter cap for control of electric power and device equipped therewith |
Dec. 2, 2008 |
| 7453057 |
Vehicle rearview mirror system having a variable reflectance control |
Nov. 18, 2008 |
| 7453053 |
Optical output controller with control based upon an output current of parallel current controlling elements |
Nov. 18, 2008 |
| 7449666 |
Color image sensor unit and image reading apparatus using the sensor unit and control method therefor |
Nov. 11, 2008 |
| 7449667 |
Illumination method and apparatus having a plurality of feedback control circuit for controlling intensities of multiple light sources |
Nov. 11, 2008 |
| 7446293 |
Electro-optical element and method for manufacturing thereof, optical module and method for driving thereof |
Nov. 4, 2008 |
| 7432492 |
Image reading apparatus capable of reading infrared and visible images |
Oct. 7, 2008 |
| 7432489 |
System and method for errant laser beam detection using a continuity circuit adjacent an optic |
Oct. 7, 2008 |
| 7430365 |
Safe eye detection |
Sep. 30, 2008 |
| 7427731 |
Illumination unit and method for the operation thereof |
Sep. 23, 2008 |
| 7427747 |
Optical image pickup apparatus for imaging living body tissue |
Sep. 23, 2008 |
| 7423248 |
Automatic exterior light control for a vehicle |
Sep. 9, 2008 |
| 7423247 |
Automatic control of laser diode current and optical power output |
Sep. 9, 2008 |
| 7420146 |
Laser beam monitor and control method |
Sep. 2, 2008 |
| 7417215 |
Fabrication method and test method for light emitting display |
Aug. 26, 2008 |
| 7411174 |
Sensor-controlled LED array apparatus and method |
Aug. 12, 2008 |
| 7408136 |
Vehicle vision based systems having improved light source distinguishing features |
Aug. 5, 2008 |
| 7408145 |
Light sensing instrument with modulated polychromatic source |
Aug. 5, 2008 |
| 7406018 |
Signal generating circuit and optical pickup device provided therewith |
Jul. 29, 2008 |
| 7405384 |
Method and apparatus for intensity control of multiple light sources using source timing |
Jul. 29, 2008 |
| 7402786 |
Vehicle headlight control using imaging sensor with spectral filtering |
Jul. 22, 2008 |
| 7397018 |
Amplitude and phase controlled adaptive optics system |
Jul. 8, 2008 |
| 7388181 |
Apparatus for adjusting applied voltage in display system using diffractive optical modulator |
Jun. 17, 2008 |
| 7388182 |
Image sensing system for controlling an accessory or headlight of a vehicle |
Jun. 17, 2008 |
| 7385575 |
Method of driving light emitting element array |
Jun. 10, 2008 |
| 7381935 |
Laser power control with automatic power compensation |
Jun. 3, 2008 |
| 7378630 |
Light emitting unit and imaging apparatus |
May. 27, 2008 |
| 7378631 |
Image projection apparatus for adjusting white balance in consideration of level of light emitted from LED and method thereof |
May. 27, 2008 |
| 7378632 |
Image display apparatus and image pickup apparatus using the same |
May. 27, 2008 |
| 7378633 |
Vehicle rearview assembly having a light sensor with two or more transducers |
May. 27, 2008 |
| 7372010 |
Combination socket and photosensor for measuring and adjusting intensity of lamp in the socket |
May. 13, 2008 |
| 7369903 |
Method of and system for controlling an ambient light and lighting unit |
May. 6, 2008 |
| 7368706 |
Light scanning device |
May. 6, 2008 |
| 7368694 |
Device for measuring light absorption characteristics of a biological tissue sample |
May. 6, 2008 |
| 7365297 |
Object detecting apparatus having a current adjuster for controlling amount of electric current supplied to a laser device in compensation for a diversity of current-luminosity characteristics |
Apr. 29, 2008 |
| 7358472 |
Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
Apr. 15, 2008 |
| 7358473 |
Object detecting system |
Apr. 15, 2008 |
| 7355155 |
Light emitting apparatus for medical applications |
Apr. 8, 2008 |
| 7351944 |
Beam irradiation device |
Apr. 1, 2008 |
| 7351947 |
System and method for ambient light sensor testing for an information handling system display |
Apr. 1, 2008 |
| 7348530 |
System, method and apparatus for regulating the light emitted by a light source |
Mar. 25, 2008 |
| 7345513 |
Driver circuit with automatic offset compensation of an amplifier and method for offset compensation of an amplifier of a driver circuit |
Mar. 18, 2008 |
| 7339149 |
Vehicle headlight control using imaging sensor |
Mar. 4, 2008 |
| 7335868 |
Exposure control system and method for an image sensor |
Feb. 26, 2008 |
| 7332699 |
Feed-forward methods and apparatus for setting the light intensities of one or more LEDs |
Feb. 19, 2008 |
| 7333183 |
Laser scanning device |
Feb. 19, 2008 |
| 7333680 |
Fiber Bragg grating sensor system |
Feb. 19, 2008 |
| 7330603 |
Method and device for electronic image capture in several zones |
Feb. 12, 2008 |
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