In the circuit, the voltage at pin 3 is set by VR1 so as to keep the output high in a particular light level. The high output keeps the LED off. The PN Photodiode act as the light sensor. When the ...

Simple Light Sensor Circuit Features High Dynamic Range. Dec. 13, 2009. ... The photocell’s dark current is about 2 nA and its maximum output is about 60 µA at saturation level.

Sensor’s Nanotechnology Eliminates the Need for Energy-Intensive Flash in Digital Cameras, Mobile Phones and Cars Las Vegas – January 8, 2007 – CES 2007, Booth #70600 – Planet82 Inc., a global leader ...