Photocell Controlled Circuit Patents (Class 250/206)
- With electronic scanning (Class 250/208.3)
- Used to switch an electrical circuit or device on or off (Class 250/208.4)
- With photodetector output ratioing other than by bridge or push-pull circuits (Class 250/208.5)
- With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element) (Class 250/208.6)
- Photographic control (Class 250/214P)
- Light dimmers (Class 250/214D)
- Amplifier type (Class 250/214A)
- Photosensitive rheostat type (Class 250/214PR)
- Self-generating type (Class 250/214SG)
- Special photocell (Class 250/214.1)
- Automatic gain control (Class 250/214AG)
- Ambient light responsive (Class 250/214AL)
- Ambient light desensitizing means (Class 250/214B)
- Compensation (Class 250/214C)
- Digital circuitry (Class 250/214DC)
- Logarithmic/linear signal (Class 250/214L)
- Rate of change (Class 250/214RC)
- Slave flash (Class 250/214SF)
- Electronic switch (Class 250/214SW)