| Patents for G01J 1 - Photometry, e.g. photographic exposure meter (22,989) |
|---|
| 05/17/1977 | US4024397 Shock resistant encapsulated infrared detector |
| 05/17/1977 | US4023910 Electronic photometer with two variable indicators |
| 05/03/1977 | US4021698 Control device for automatically controlling the quantity of light from flash apparatus |
| 04/12/1977 | US4017192 Optical analysis of biomedical specimens |
| 04/05/1977 | US4016424 Ultraviolet radiation detector |
| 04/05/1977 | US4016416 Phase compensated zone plate photodetector |
| 03/29/1977 | US4015149 Temperature compensating device for devices having semiconductors |
| 03/29/1977 | US4015130 Method and apparatus for monitoring optical radiation |
| 03/29/1977 | US4015120 Optical systems and associated detecting means |
| 03/29/1977 | US4015118 Controlling the amplification in a radiation detecting avalanche diode |
| 03/29/1977 | US4014612 Photometric measuring apparatus |
| 03/22/1977 | US4012955 Apparatus for measuring the incident power of light in fiber optics |
| 03/01/1977 | US4010372 Device for measuring the ultra-violet radiation in the uv-a and/or uv-b range |
| 02/15/1977 | US4008398 Transducer signal conditioning circuit |
| 02/08/1977 | US4007466 Electrical system having a photoelectric converter to be used in photography |
| 01/25/1977 | US4004853 Exposure meter circuit |
| 01/18/1977 | US4003662 Portable photometer |
| 12/28/1976 | US3999868 Unit for use in optical analysis |
| 12/28/1976 | US3999862 Apparatus for optically analyzing a solution |
| 12/21/1976 | US3999061 Radiant energy integrating meter |
| 12/07/1976 | US3996455 Two-dimensional radiant energy array computers and computing devices |
| 11/30/1976 | US3995265 Analogue divider with digital output for spectrophotometry |
| 11/30/1976 | US3995159 Thermal imaging systems |
| 11/30/1976 | US3994595 Systems for statically determining brightness characteristics of an area to be photographed |
| 11/30/1976 | US3994590 Discrete frequency colorimeter |
| 11/23/1976 | US3994001 Photometric apparatus for single lens reflex camera |
| 11/23/1976 | US3993901 Radiation detecting system |
| 11/16/1976 | US3992714 Photographic film exposure determining system compensated for temperature and voltage fluctuations |
| 11/16/1976 | US3992620 Dynamic light reference system for film reader |
| 11/09/1976 | US3990799 Digital exposure meter |
| 11/02/1976 | US3989382 Platelet aggregation monitoring device |
| 10/26/1976 | US3988590 Photomultiplier tube gain regulating system |
| 10/12/1976 | US3986022 Illumination control system |
| 10/12/1976 | US3985441 Multi-channel spectral analyzer for liquid chromatographic separations |
| 10/05/1976 | US3984676 Light-measuring apparatus with lamp indicator for determining balance of a measuring bridge |
| 09/21/1976 | US3981591 Automatic photometer |
| 09/21/1976 | US3981586 Continuously monitoring ratiometer |
| 09/07/1976 | US3978720 Combustion detector for internal combustion engines |
| 08/24/1976 | US3977011 Light measuring apparatus |
| 08/24/1976 | US3976875 Photodetector filter structure |
| 08/17/1976 | US3975747 Off-photometric-range indicator for exposure meter |
| 08/17/1976 | US3975099 Optical null apparatus |
| 08/10/1976 | US3974375 Device for measuring the irradiation energy impinged upon a target within a fixed period |
| 08/03/1976 | US3972626 Autoranging digital luxmeter |
| 07/27/1976 | US3971951 Apparatus for measuring two different fluorescences of a sample |
| 07/27/1976 | US3971943 Ultraviolet radiation monitor |
| 07/20/1976 | US3971046 Systems for responding to non-uniform scene brightness |
| 07/20/1976 | US3971045 Light measuring circuit |
| 07/20/1976 | US3970372 Motor driven light chopper |
| 07/20/1976 | US3970371 Apparatus for chopping light beam |
| 07/06/1976 | US3968363 Radiation flux averaging device of high efficiency |
| 07/06/1976 | US3967903 Photodensitometer for measuring optical fringe patterns |
| 07/06/1976 | US3967900 Signal gating device |
| 06/29/1976 | US3967124 Apparatus for determining skin tolerance to ultra-violet radiation |
| 06/29/1976 | US3966325 Laser power meter |
| 06/22/1976 | US3965348 Method of and apparatus for detecting light and controlling jalousies and the like |
| 06/15/1976 | US3964076 Shutter speed display devices for electric shutter operating circuits |
| 06/15/1976 | US3963351 Multi-channel optical time-sharing apparatus having a rotating filter wheel with position-encoding means |
| 06/08/1976 | US3962578 Two-color photoelectric detectors having an integral filter |
| 06/08/1976 | US3961898 Comparator circuit for automatic analysis apparatus |
| 05/18/1976 | US3958207 Injection current device and method |
| 05/04/1976 | US3955105 Synchronous detector |
| 05/04/1976 | US3955096 Implicit ratio computer for sequential signals |
| 05/04/1976 | US3955081 Exposure control circuit |
| 04/27/1976 | US3953137 Nuclear-burst strength detecting and measuring device |
| 04/27/1976 | US3953127 Photon-counting integrating nephelometer |
| 04/20/1976 | US3952318 Shutter control circuit for cameras |
| 04/20/1976 | US3952206 Photometer circuit |
| 04/20/1976 | US3952196 Radiation detection apparatus |
| 04/20/1976 | US3951552 Photometer-digitizer system |
| 03/30/1976 | US3947112 Device for document filming |
| 03/23/1976 | US3945732 Light-measuring systems |
| 03/16/1976 | US3944814 Light detecting apparatus of improved resolution |
| 03/16/1976 | US3944370 Exposure time indication apparatus |
| 03/02/1976 | US3942009 Directional radiation detector |
| 03/02/1976 | US3941997 Method and a device for localizing a light impact on the photocathode of a photomultiplier |
| 02/24/1976 | US3940753 Detection of presence or absence of flames |
| 02/24/1976 | US3940607 Photo-electric lightning detector apparatus |
| 02/24/1976 | US3939706 High energy sensor |
| 02/10/1976 | US3937962 Correction of two beam photometer for fluid analysis |
| 02/10/1976 | US3937580 Electro-optical method for measuring gaps and lines |
| 02/10/1976 | US3937117 Composite tuning fork and method of making same |
| 02/03/1976 | US3936842 Automatic exposure time control circuitry for a camera using a photodiode as a light measuring element |
| 02/03/1976 | US3936839 Method and system for monitoring the light output of pyrotechnic luminants under dynamic conditions |
| 02/03/1976 | US3936190 Fluorescence spectrophotometer for absorption spectrum analysis |
| 01/13/1976 | USRE28678 Electric exposure meter |
| 01/13/1976 | US3932041 Construction unit for two beam photometers |
| 01/13/1976 | US3932040 Self-equalizing industrial photometer |
| 01/13/1976 | US3932023 Optical coupler for transmitting light linearly between a single point and plural points |