165840 ⎘
Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors; Arrangements with two photodetectors, the signals of which are compared one detector being transparent before the other one
METHODS AND DEVICES FOR DETECTING INTENSITY OF LIGHT WITH TRANSLUCENT DETECTOR
#2Methods and devices for detecting intensity of light with translucent detector
#3Solid state image sensor with on-chip filter and extended spectral response
#4Methods and devices for detecting intensity of light with translucent detector