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photomultiplier tube

A vacuum tube that converts light into electrical energy and amplifies it. Photomultiplier tubes are used in high-end drum scanners, because they are more sensitive to light than the CCD elements used in lower-cost devices.



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photodetectorphoton
photodiodephotonic
PhotoDrawphotonic crystal
photoelectricphotonic sensor
photoelectric switchphotonic switch
photofeedphotonics
photographyphotooptic memory
photolithographyphotorealistic
photomaskphotorealistic image synthesis
photomicrographyphotoresist

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