Polygon mirror for use with laser beam scanning apparatus includ

Details Polygon mirror for use with laser beam scanning apparatus includ Polygon mirror for use with laser beam scanning apparatus includ

1981-06-30

1983-12-20

Henry, Jon W.

Special receptacle or package

For holding a machine readable recording medium

For holding a grooved phonograph disc

206316, G02B 718

Patent

active

044213859

ABSTRACT:
A rotatable mirror having a body with a regular polygon cross section, the faces of the polygon being mirror facets for scanning a laser beam, in combination with a container for storing the mirror. The container cooperates with elements of the mirror for preventing axial or lateral movement of the mirror in the container. Structure on the top surface of the body of the mirror both provides for handling the mirror without touching the facets and interacts with the cover of the container for securing the mirror when therein. A circular groove in the upper surface of the body of the mirror may receive a balance weight for compensating for any eccentricity between the centroid of the mirror and its axis of rotation.

REFERENCES:
patent: 3532213 (1970-10-01), Schulz
patent: 4173282 (1979-11-01), Stansbury et al.
Kobayashi et al., Akira, Toshiba Review, Aug. 1972, pp. 24-28.

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