Light deflecting apparatus using a rotary polygon mirror

Details Light deflecting apparatus using a rotary polygon mirror Light deflecting apparatus using a rotary polygon mirror

1994-07-12

1995-09-26

Dzierzynski, Paul M.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359198, 384105, 384121, 384461, 310 36, G02B 2608

Patent

active

054538696

ABSTRACT:
In a light deflecting apparatus including a rotary polygon mirror in which a disc rotary polygon mirror is fixed to a shaft supported by a gas of a predetermined pressure. The rotary polygon mirror is fixed to the circumferential side of a shaft by direct engagement therewith, and compressed air is supplied to the thrust end surface of the rotary polygon mirror, to use the thrust end surface as a thrust bearing. Thereby, the rotary polygon mirror can be rotated with higher running accuracy.

REFERENCES:
patent: 2951729 (1944-03-01), Skarstrom
patent: 4805972 (1994-09-01), Tanaka et al.
patent: 4934781 (1994-09-01), Kato et al.

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