The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 1981
Filed:
Sep. 07, 1979
Nippon Kogaku K.K., Tokyo, JP;
Abstract
In a single lens reflex camera having an interchangeable photographing lens having a first and a second signal member, the camera being usable in combination with an electronic flash unit and having a third signal member, there is provided an exposure parameter information generating circuit which comprises first converter means for converting the mechanical outputs of the first and third signal members into electrical output information, second converter means for converting the mechanical output of the second signal member into electrical output information, an adder circuit for adding the electrical outputs of the first and second converter means and putting out electrical information, a first output terminal for applying the output of the first converter means to an exposure time operation circuit, and a second output terminal for applying the output of the adder circuit to the electronic flash unit.