Patent JPS5428632A successfully refreshed from Google Patents.
JPS5428632A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Method and apparatus of exposure correction in copying magnification varaible copying apparatus
Assignee: Konica Minolta Inc
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Filing: 1977-08-05
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Granted: —
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Expires: 1997-08-05
Abstract
Abstract PURPOSE:To automatically perform accurate exposure correction by cooperatively changing an iris stop at the time of moving a lens along optical path and changing magnification.
Inventors
- 👤 Takashi Tamura
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-09 06:17
CPC Classifications
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Claims Analysis
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References Cited (Backward Citations)
JPS4918539U
Cited
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