Tetra- Lateral Position sensing - PSD
OSI Optoelectronics
These detectors are best when used in applications that require measurement over a wide spacial range. They offer high response uniformity,low dark current , and a good position linearity over 64% of the sensing area.
They feature a common anode and two cathodes for one dimensional position sensing or four cathodes for two dimensional position sensing.
Main Features:
- Single resistivity layer
- High speed response
- High dynamic range
- Spot size and shape independence
- Angular measurements
- 3D Dimensional Vision
- Position measuring
Applications:
- Tool Alignment and Control
- Leveling measurements
Segmented Photodiodes
OSI Optoelectronics
Bi-cell or Quadrant - SPOT Serie:are common substrate photodetectors segmented into either 2 or 4 separate elements.SPOT serie are ideal for very accurate nulling or centering applications.
Spectral range is from 350-1100nm. Notch or bandpass filter can be added to achieve specific spectral response.
Main Features:
- Excellent resolution
- High speed response
- High stability over time and temperature
- Beam centering
- Surface profiling
- Guidance systems
Applications:
- Machine tool alignment
- Position Measuring
Sum & Difference Amplifier Modules
OSI Optoelectronics
Position Sensing Modules: QD7-0-SD /QD50-0-SD are quadrant photodiode arrays with associated circuitry to provide two difference signals and a sum signal.
This makes the QD7-0-SD or QD50-0-SD ideal for both light beam nulling and position applications.
Main Features:
- a 10µm gap is available for the QD50SD module
Applications:
- Position Measuring
- Beam centering
- Targeting
- Guidance systems
Super Linear Position sensing - PSD
OSI Optoelectronics
Duo-Lateral detectors: The super linear position sensor feature state of the art duo- lateral technology to provide a continoius analog output proportional to the displacement of the centroid of a ligth spot from the center, on the active area.
These detector are unparalleled; offering position accuracies of 99% over 64% of the sensing area.
The maximum recommended power density incident on the duo lateral PSD are 1mW/cm².
Main Features:
- Super linear
- Wide dynamic range
- Ultra high accuracy
- Surface profiling
- Height measurements
- Motion analysis
Applications:
- Beam alignment
- Position Sensing
- Angle measurement
Photonics 
