JPS546531A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Focusing device of cameras
Assignee: Ricoh Co Ltd
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Filing: 1977-06-16
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Granted: —
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Expires: 1997-06-16
Abstract
Abstract PURPOSE: To make operation accurate, eliminate errors despite the presence of more than two points of the minimum values in the curve showing distance information and display focusing state by digitsl processing of the differences in electric signals from two optical systems and two sets of photoelectric transducer arrays. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Isamu Shibata
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-10-23 21:14
CPC Classifications
—
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