 |
|
 |
| |
 |
|
Class Information
Number: 250/351
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Infrared responsive > With periodic beam varying means
Description: Subject matter having means to change at regular intervals some characteristic of the infrared radiation in the path of the radiation from the source to the signalling means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7339170 |
Optical encoding and reconstruction |
Mar. 4, 2008 |
| 7268352 |
Apparatus and method for determining the proportion of a substance in a gas sample using an infrared measuring instrument |
Sep. 11, 2007 |
| 7244937 |
Optical measurement apparatus with laser light source |
Jul. 17, 2007 |
| 7193214 |
Sensor having differential polarization and a network comprised of several such sensors |
Mar. 20, 2007 |
| 7166842 |
Gas sensor arrangement with reduced settling time |
Jan. 23, 2007 |
| 7164131 |
High fidelity electrically calibrated pyroelectric radiometer |
Jan. 16, 2007 |
| 7157711 |
Microspectrometer gas analyzer |
Jan. 2, 2007 |
| 7141793 |
Remove vehicle emission sensing device with single detector |
Nov. 28, 2006 |
| 7092007 |
Vehicular forward-vision display system decreasing luminance with decreasing vehicle speed |
Aug. 15, 2006 |
| 7091488 |
Uncooled optical imaging device |
Aug. 15, 2006 |
| 6995359 |
Miniature cryogenic shutter assembly |
Feb. 7, 2006 |
| 6813063 |
Exciton polariton optical switch |
Nov. 2, 2004 |
| 6800856 |
Light sampling system |
Oct. 5, 2004 |
| 6791086 |
Microspectrometer gas analyzer |
Sep. 14, 2004 |
| 6770882 |
Micromachined pyro-optical structure |
Aug. 3, 2004 |
| 6717148 |
Method and apparatus for measuring coating |
Apr. 6, 2004 |
| 6707044 |
Infrared camera system |
Mar. 16, 2004 |
| 6700124 |
Infrared imaging device, vehicle having the same installed therein, and infrared image adjustment device |
Mar. 2, 2004 |
| 6664553 |
Trap blackbody |
Dec. 16, 2003 |
| 6586738 |
Electromagnetic radiation detectors having a micromachined electrostatic chopper device |
Jul. 1, 2003 |
| 6585410 |
Radiant temperature nulling radiometer |
Jul. 1, 2003 |
| 6580064 |
Background rejection circuit |
Jun. 17, 2003 |
| 6580078 |
Ferroelectric liquid crystal infrared chopper |
Jun. 17, 2003 |
| 6396060 |
System for detecting radiation in the presence of more intense background radiation |
May. 28, 2002 |
| 6321110 |
Device for controlling equipment by using signals from a living body |
Nov. 20, 2001 |
| 6225630 |
Apparatus configured for identification of a material and method of identifying a material |
May. 1, 2001 |
| 6222190 |
Photo acoustic infrared (IR) detector |
Apr. 24, 2001 |
| 6184529 |
Methods and apparatus for performing scene based uniformity correction in imaging systems |
Feb. 6, 2001 |
| 6177674 |
Infrared radiation modulating device |
Jan. 23, 2001 |
| 6163026 |
Chemically stabilized light selective element for imaging applications |
Dec. 19, 2000 |
| 6121617 |
Infrared gas analyzer |
Sep. 19, 2000 |
| 6069359 |
Pyroelectric IR sensor |
May. 30, 2000 |
| 6034371 |
Semi-opaque chopper for thermal imaging system and method |
Mar. 7, 2000 |
| 6028312 |
Electronic chopping |
Feb. 22, 2000 |
| 5994701 |
Infrared sensor device with temperature correction function |
Nov. 30, 1999 |
| 5965890 |
Solid state infrared chopper |
Oct. 12, 1999 |
| 5952661 |
Chopper for thermal imaging system and method |
Sep. 14, 1999 |
| 5923036 |
Spatially-multiplexed imaging microscope |
Jul. 13, 1999 |
| 5900533 |
System and method for isotope ratio analysis and gas detection by photoacoustics |
May. 4, 1999 |
| 5867307 |
Blur film assembly for infrared optical applications |
Feb. 2, 1999 |
| 5818049 |
Infrared gas spectrometer having a lid assembly with an integrated chopper and chopper motor |
Oct. 6, 1998 |
| 5811811 |
Environment monitor |
Sep. 22, 1998 |
| 5796107 |
Infrared modulator |
Aug. 18, 1998 |
| 5739535 |
Optical gas analyzer |
Apr. 14, 1998 |
| 5731583 |
Folded optical path gas analyzer with cylindrical chopper |
Mar. 24, 1998 |
| 5680135 |
Radiation communication system |
Oct. 21, 1997 |
| 5659416 |
Thermometer for remote temperature measurements |
Aug. 19, 1997 |
| 5640015 |
Pyrometer electromagnetic radiation measuring device |
Jun. 17, 1997 |
| 5572031 |
Pressure- and temperature-compensating oxygen sensor |
Nov. 5, 1996 |
| 5528391 |
Infrared beam steering system using diffused infrared light and liquid crystal apertures |
Jun. 18, 1996 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
