OSI Optoelectronics, QD7-0-SD Visible Light Photodetector Amplifier Unit, Through Hole TO-5

QD7-0-SD or QD50-0-SD are quadrant photodiode arrays with associated circuitry to provide two difference signals and a sum signal. The two difference signals are voltage analogs of the relative intensity difference of the light sensed by opposing pairs of the photodiode quadrant elements. In addition the amplified sum of all 4 quadrant elements is provided as the sum signal. This makes the QD7-0-SD or QD50-0-SD ideal for both light beam nulling and position applications. Very precise light beam alignments are possible, and the circuit can also be used for target acquisition and alignment.

Product Applications
Position Measuring
Beam Centering
Targeting
Guidance Systems
Product Features
A 10μm gap is available for the QD50-SD Modules