Patent JPS5227646A successfully refreshed from Google Patents.
JPS5227646A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Optical device
Assignee: Hitachi Ltd
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Filing: 1975-08-27
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Granted: —
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Expires: 1995-08-27
Abstract
Abstract PURPOSE:By locating each cylindrical lens in an optical path of the laser light which is incident upon a rotary polyhedral mirror and in an optical path whereto the laser light emitting from this polyhedral mirror reaches a parabolic reflector, a laser recording display of few amount of distotion and optical scanning pitch deviation shall be made possible.
Inventors
- 👤 Keiji Kataoka
- 👤 Yasutsugu Takeda
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 02:21
CPC Classifications
—
Claims Analysis
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