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Class Information
Number: 250/354.1
Name: Radiant energy > Invisible radiant energy responsive electric signalling > Signalling means controls incident radiation
Description: Subject matter including means responsive to the electric signalling means to vary or maintain constant some characteristic of the invisible radiation impinging upon the signalling means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7241999 |
Use of a photovoltaic element as sensor for checking the functioning of transmitters in the infrared range |
Jul. 10, 2007 |
| 7208738 |
Light source utilizing an infrared sensor to maintain brightness and color of an LED device |
Apr. 24, 2007 |
| 7164111 |
Device for detecting invisible light beam |
Jan. 16, 2007 |
| 7071472 |
Irradiation control device |
Jul. 4, 2006 |
| 6946652 |
Accelerated weathering apparatus |
Sep. 20, 2005 |
| 6872936 |
Accelerated weathering apparatus |
Mar. 29, 2005 |
| 6444986 |
Method and apparatus for detecting an object within a heating sources's radiating beam |
Sep. 3, 2002 |
| 6124103 |
Arrangement and method of examining hydrophilic macromolecules in an aqueous solution |
Sep. 26, 2000 |
| 5587583 |
Thermal imaging device |
Dec. 24, 1996 |
| 5529630 |
Apparatus for manufacturing a liquid crystal display substrate, and apparatus for evaluating semiconductor crystals |
Jun. 25, 1996 |
| 5442154 |
Laser beam machine safety device and method of use |
Aug. 15, 1995 |
| 5081363 |
Dosimeter reading apparatus with optical laser converter |
Jan. 14, 1992 |
| 5047639 |
Concentration detector |
Sep. 10, 1991 |
| 5041734 |
Dosimeter reading apparatus with optical laser converter |
Aug. 20, 1991 |
| 4970398 |
Focused multielement detector for x-ray exposure control |
Nov. 13, 1990 |
| 4956557 |
Dosimeter for ionizing radiation |
Sep. 11, 1990 |
| 4906848 |
Apparatuses and methods for laser reading of phosphors |
Mar. 6, 1990 |
| 4896041 |
Dosimeter for ionizing radiation |
Jan. 23, 1990 |
| 4859855 |
Dosimeter for ionizing radiation |
Aug. 22, 1989 |
| 4856906 |
Enhanced system for transmission loss comparison |
Aug. 15, 1989 |
| 4855597 |
Radiation image read-out apparatus |
Aug. 8, 1989 |
| 4839518 |
Apparatuses and methods for laser reading of thermoluminescent phosphors |
Jun. 13, 1989 |
| 4831260 |
Beam equalization method and apparatus for a kinestatic charge detector |
May. 16, 1989 |
| 4814602 |
Photoelectric conversion processing apparatus |
Mar. 21, 1989 |
| 4801113 |
Apparatus and method for electrical heating of aircraft skin for background matching |
Jan. 31, 1989 |
| 4757199 |
Image scanning read-out method |
Jul. 12, 1988 |
| 4730113 |
Safety system for a laser-utility facility |
Mar. 8, 1988 |
| 4710631 |
Temperature compensation for a semiconductor light source used for exposure of light sensitive material |
Dec. 1, 1987 |
| 4640627 |
Apparatus for monitoring a plasma torch |
Feb. 3, 1987 |
| 4638163 |
Method and apparatus for reading thermoluminescent phosphors |
Jan. 20, 1987 |
| 4620098 |
Radiation photographing apparatus |
Oct. 28, 1986 |
| 4510390 |
Electronic method and apparatus for distance measurement through the use of equidistant thermal fiducial markings |
Apr. 9, 1985 |
| 4507556 |
Apparatus and method for determining pulp stock consistency |
Mar. 26, 1985 |
| 4480191 |
Automatic gain control for an infrared source of an automotive emissions analyzer |
Oct. 30, 1984 |
| 4469945 |
Device for detecting radiation and semiconductor device for use in such a device |
Sep. 4, 1984 |
| 4410273 |
Scanning laser spectrometer |
Oct. 18, 1983 |
| 4410799 |
Device for controlling radiation image information read out gain |
Oct. 18, 1983 |
| 4368384 |
Gain setting device for radiation image read out system |
Jan. 11, 1983 |
| 4313655 |
Focussing system with automatic control of emitted radiant power |
Feb. 2, 1982 |
| 4309609 |
Heat scaling of traveling articles |
Jan. 5, 1982 |
| 4284889 |
Method for recording radiation image using stimulable phosphor |
Aug. 18, 1981 |
| 4264823 |
Well logging digital neutron generator control system |
Apr. 28, 1981 |
| 4234785 |
Liquid level responsive control device |
Nov. 18, 1980 |
| 4047034 |
Automatic system for continuously calibrating a gamma camera |
Sep. 6, 1977 |
| 4016423 |
Infrared analyzer of constant radiant energy |
Apr. 5, 1977 |
| 3949226 |
Automatic light intensity controller for CRT lighthouse |
Apr. 6, 1976 |
| 3939343 |
Pulsed neutron logging system for inelastic scattering gamma rays with gain compensation |
Feb. 17, 1976 |
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