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:
May. 22, 1984
Filed:
Jun. 21, 1983
Zenzo Nakamura, Urawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An adapter device for interconnecting a light adjusting flash device and a camera. The adapter device includes a first terminal for connection to a charge completion signal circuit in the flash device, a second terminal for connection to a mode selection circuit in the camera and a transistor which is turned on in response to a charge completion signal to change the electrical condition at the second terminal to operate the mode selecting circuit to select the flashlight mode. The adapter device further includes a third terminal which is connected to an aperture signal forming circuit in the camera and is connectable to the second terminal to transmit a flash aperture value signal to an aperture control circuit in the camera.