Optical beam scanner with detector position adjustment means

Details Optical beam scanner with detector position adjustment means Optical beam scanner with detector position adjustment means

1987-11-25

1989-07-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 68, 358494, H01T 314, H01T 516, H01T 4014

Patent

active

048474924

ABSTRACT:
An optical beam scanner includes a light source, a deviation unit for deviating a beam from the light source and emitting a scanning beam, a compensation unit for compensating a vertical inclination of the deviation unit and having a first optical element for deforming the scanning beam into a vertically longitudinal oval shape and a second optical element for reforming the oval beam into a round shape and converging the scanning beam on a scanning surface. A detection unit detects the scanning beam and is disposed between the deviation unit and the second optical element.

REFERENCES:
patent: 4720632 (1988-01-01), Kaneko

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