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●HAMAMATSU
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●What is PSD?
●Various methods are available for detecting the position of incident light. These include methods using small discrete detector arrays or multi-element sensors such as CCD sensors. In contrast to these sensors, PSDs (Position Sensitive Detectors) are comprised of a monolithic detector with no discrete elements and provide continuous position data by making use of the surface resistance of the photodiode. PSDs offer advantages such as high position resolution, high-speed response and reliability.
●■ Features of PSD
●· Excellent position resolution
●· Wide spectral response range
●· High-speed response
●· Detects center-of-gravity position of spot light
●· Simultaneously detects light intensity and center-of-gravity position of spot light
●· High reliability
●■ Applications of PSD
●· Position and angle sensing
●· Distortion and vibration measurements
●· Lens reflection and refraction measurements
●· Laser displacement sensing
●· Optical remote control
●· Optical range finders
●· Optical switches
●· Camera auto focusing