Scanner detector array and light diffuser

Details Scanner detector array and light diffuser Scanner detector array and light diffuser

1990-03-02

1991-11-26

Willis, Davis L.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250572, 250236, H01J 4014, G01N 2188

Patent

active

050685236

ABSTRACT:
A detector for a laser scanner has an array of detector elements disposed in at least one row and side-by-side in a plurality of columns, wherein each detector element comprises a lens receptive of laser light on one face thereof along a light path from the target and outputting light at the other face. The detector elements also include a photodetector for generating an electrical signal in response to light received thereon. The photodetector is mounted at a fixed distance from the other face of the lens and facing the other face to receive light passing through the lens and a preamplifier is mounted adjacent the photodetector on a common substrate for receiving the signal generated thereby.

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patent: 4697082 (1987-09-01), Bartelsen
patent: 4914309 (1990-04-01), Masaharu et al.

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