Devices for Exposure instrument.

PMT (photomultiplier tubes)

In the photosensor field, photomultiplier tubes (or PMT) are known to have particularly high sensitivity. PMT also have dozens of other advantages such as high-speed response time.

Xenon lamps / mercury-xenon lamps

Xenon lamps emit a continuous spectrum with high luminance and high color temperature, ranging from the UV to visible to infrared range.

Hamamatsu Corporation Mercury Education Plan (US only)

Si photodiodes


Featuring high sensitivity and low dark current, these Si photodiodes are specifically designed for precision photometry and general photometry/visible range.



Position sensitive detectors (PSD) are optoelectronic position sensors utilizing photodiode surface resistance. Unlike discrete element detectors such as CCD, PSD provides continuous position data (X or Y coordinate data) and features high position resolution and high-speed response.

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