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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 |
| 7002128 |
Laser diode driving circuit with safety feature |
Feb. 21, 2006 |
| 6998594 |
Method for maintaining light characteristics from a multi-chip LED package |
Feb. 14, 2006 |
| 6998603 |
Image forming apparatus, optical writing device, and controlling method thereof |
Feb. 14, 2006 |
| 6999838 |
System and method for improving laser power and stabilization using high duty cycle radio frequency injection |
Feb. 14, 2006 |
| 6992274 |
Laser processing method and apparatus |
Jan. 31, 2006 |
| 6989520 |
Emission control apparatus with settable target intensity and image forming apparatus using same |
Jan. 24, 2006 |
| 6987876 |
System and methods for determining the settings of multiple light sources in a vision system |
Jan. 17, 2006 |
| 6979953 |
Auto-operated dip switching mechanism |
Dec. 27, 2005 |
| 6974942 |
Receiving apparatus, transmitting apparatus, and communication system |
Dec. 13, 2005 |
| 6974941 |
Method and apparatus for measuring performance of a lamp |
Dec. 13, 2005 |
| 6969865 |
Systems and methods for detection and measurement of elements in a medium |
Nov. 29, 2005 |
| 6969843 |
Light standard for microscopy |
Nov. 29, 2005 |
| 6967320 |
Methods for maintaining laser performance at extreme temperatures |
Nov. 22, 2005 |
| 6963059 |
Method and system for optimizing illumination power and integration time in an optical sensing device |
Nov. 8, 2005 |
| 6958464 |
Equalization for a multi-axis imaging system |
Oct. 25, 2005 |
| 6956640 |
Light energy detecting apparatus for exposure condition control in semiconductor manufacturing apparatus |
Oct. 18, 2005 |
| 6952002 |
Image processing apparatus |
Oct. 4, 2005 |
| 6943333 |
Light arrangement for vision system including a light controller with an external device |
Sep. 13, 2005 |
| 6943332 |
Laser microscope and irradiating method |
Sep. 13, 2005 |
| 6936805 |
Device and method for fixing an optical wavelength in a wavelength division multiplexing system |
Aug. 30, 2005 |
| 6934014 |
Device with at least one light source, comprising several individual light sources |
Aug. 23, 2005 |
| 6933485 |
Stabilizing power and wavelength of output radiation from a stabilized radiation source in optical communications systems |
Aug. 23, 2005 |
| 6933486 |
Illumination management system |
Aug. 23, 2005 |
| 6927378 |
Apparatus and method for monitoring of cathode ray tube panel manufacturing to reduce CRT cost and improve performance and yield |
Aug. 9, 2005 |
| 6927377 |
Wavelength locking channel monitor |
Aug. 9, 2005 |
| 6919548 |
control system to automatically control vehicle headlamps |
Jul. 19, 2005 |
| 6897431 |
Method for measuring optoelectronic characteristics of organic light emitting diode |
May. 24, 2005 |
| 6897424 |
Controlling a laser to stop output in accordance with detection of output lights corresponding to channels |
May. 24, 2005 |
| 6891866 |
Calibration of laser systems |
May. 10, 2005 |
| 6891142 |
Photoelectric sensor unit including automatic control circuit for reducing fluctuation in light emission |
May. 10, 2005 |
| 6885443 |
Drive device for a light-emitting component |
Apr. 26, 2005 |
| 6884987 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Apr. 26, 2005 |
| 6881939 |
Microprocessor based automatically dimmable eye protection device |
Apr. 19, 2005 |
| 6880957 |
Lighting apparatus with electronic shadow compensation |
Apr. 19, 2005 |
| 6879731 |
System and process for generating high dynamic range video |
Apr. 12, 2005 |
| 6870147 |
Light stability testing device |
Mar. 22, 2005 |
| 6870148 |
LED with controlled capacitive discharge for photo sensing |
Mar. 22, 2005 |
| 6862137 |
Method for adjusting a lamp relative to an illuminating beam path of a microscope and a microscope suitable for carrying out the method |
Mar. 1, 2005 |
| 6855919 |
High-frequency current generating circuit and control device for controlling light intensity of laser diode |
Feb. 15, 2005 |
| 6831261 |
Vehicle headlight control using imaging sensor |
Dec. 14, 2004 |
| 6831672 |
Image forming apparatus |
Dec. 14, 2004 |
| 6828538 |
Illumination detection method for LED printbars |
Dec. 7, 2004 |
| 6825930 |
Multispectral imaging system |
Nov. 30, 2004 |
| 6825486 |
System for mapping wafers using predictive dynamic lighting |
Nov. 30, 2004 |
| 6822210 |
Data recording apparatus including light intensity control device |
Nov. 23, 2004 |
| 6818064 |
Photoresist dispense arrangement by compensation for substrate reflectivity |
Nov. 16, 2004 |
| 6815652 |
Low power phototransistor-based welding helmet providing reduced sensitivity to low intensity light and sharp phototransistor response to high intensity light |
Nov. 9, 2004 |
| 6806485 |
Ambient light detector for off-the-glass rain sensor |
Oct. 19, 2004 |
| 6801598 |
Radiation sensing apparatus |
Oct. 5, 2004 |
| 6787748 |
High speed sampling circuit |
Sep. 7, 2004 |
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