Patent JPS547323A successfully refreshed from Google Patents.
JPS547323A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Optical system for detecting point of focus
Assignee: Ricoh Co Ltd
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Filing: 1977-06-20
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Granted: —
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Expires: 1997-06-20
Abstract
Abstract PURPOSE: To readily bluid the optical system into a camera and increase range finding accracy by disposing a pair of photoelectric transducers in the optical equivalent positions of both images by a pair of convex lenses of the same performance installed before or behind the intended image forming plane by an objective lens. COPYRIGHT: (C)1979,JPO&Japio
Inventors
- 👤 Ikuo Maeda
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 18:57
CPC Classifications
—
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