| |
Class Information
Number: 250/214B
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Ambient light desensitizing means
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4097732 |
Automatic gain control for photosensing devices |
Jun. 27, 1978 |
| 4093832 |
Programmable record changer |
Jun. 6, 1978 |
| 4084088 |
Automatic light switch |
Apr. 11, 1978 |
| 4061925 |
Method and apparatus for measuring radiation from a plurality of light sources |
Dec. 6, 1977 |
| 4047023 |
Color mark detector with pulsed source and synchronous demodulation |
Sep. 6, 1977 |
| 4032777 |
Photomeric monitoring device |
Jun. 28, 1977 |
| 4029957 |
Detection device |
Jun. 14, 1977 |
| 4028544 |
Radiant energy detection system |
Jun. 7, 1977 |
| 3999060 |
Device for receiver for optical signals |
Dec. 21, 1976 |
| 3970840 |
Control circuitry for vehicle guidance mechanism |
Jul. 20, 1976 |
|
|
|
