One piece optical assembly for low cost optical scanner

Details One piece optical assembly for low cost optical scanner One piece optical assembly for low cost optical scanner

1998-03-26

2000-09-05

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250216, 23547201, G06K 710

Patent

active

061147125

ABSTRACT:
An optical scan module, for example for an optical scanner, includes an integrally molded plastics material member which defines not only the laser focusing lens, but also the laser focusing aperture and the collection mirror. In addition, the molded member may act to house and to locate both a semiconductor laser and a photodetector, thereby ensuring easy and accurate placement of those elements within the scanning assembly. The optical assembly may be in modular form, mounted onto a common printed circuit board with a beam scanner.

REFERENCES:
patent: 4346292 (1982-08-01), Routt, Jr. et al.
patent: 4409470 (1983-10-01), Shepard et al.
patent: 4760248 (1988-07-01), Swartz et al.
patent: 4971410 (1990-11-01), Wike, Jr. et al.

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