Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co LtdfiledCriticalRicoh Co Ltd
Priority to JP10074477ApriorityCriticalpatent/JPS5434235A/en
Publication of JPS5434235ApublicationCriticalpatent/JPS5434235A/en
PURPOSE: To attempt the enhancement of photometric accuracy and enhance its reliability by providing a photodetector at the position where the light outside the range of photographing effective image of incident light pencil via the photographic optical system is measured.
COPYRIGHT: (C)1979,JPO&Japio
JP10074477A1977-08-231977-08-23Photometric device for exposure meter built-in camera
PendingJPS5434235A
(en)