Laser scanner with rotating mirror and housing which is transpar

Details Laser scanner with rotating mirror and housing which is transpar Laser scanner with rotating mirror and housing which is transpar

1987-12-07

1989-09-26

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 69, 235467, H01J 516, G06K 710

Patent

active

048702749

ABSTRACT:
A scanning has a spinning mirror and an array of peripheral stationary mirrors which generate a scan pattern for reading bar codes. The backscatter from the bar code is collected by the peripheral mirrors and focused by an imaging lens. A housing is provided over the spinning mirror to reduce windage. The drive motor for the spinning mirror is mounted in front of the of the between the peripheral mirrors and the bar code. A backscatter detector is mounted behind the at the focal point of the imaging lens.

REFERENCES:
patent: 3885857 (1975-05-01), Flogaus et al.
patent: 3909104 (1975-09-01), Menke
patent: 3978317 (1976-08-01), Yamaguchi et al.
patent: 4064390 (1977-12-01), Hildebrand et al.
patent: 4606601 (1986-08-01), Starkweather
patent: 4652732 (1987-03-01), Nickl
patent: 4655541 (1987-04-01), Yamazaki et al.
patent: 4662707 (1987-05-01), Teach et al.
patent: 4699447 (1987-10-01), Howard

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