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:
Jul. 31, 2012
Filed:
May. 18, 2009
Junichi Yanai, Chigasaki, JP;
Hideki Matsui, Fujisawa, JP;
Junichi Yanai, Chigasaki, JP;
Hideki Matsui, Fujisawa, JP;
Nikon Corporation, Tokyo, JP;
Abstract
To provide a flash apparatus and a camera provided with the same which can carry out more appropriate adjustment of the light distribution field angle. An electronic flash apparatus with a variable light distribution field angle wherein the light distribution field angle is determined according to a focal length of a photographic lens and a photographic region on an imaging area, comprising a plurality of light distribution field angles corresponding to one combination of one of the focal length and one of the photographic region, and one light distribution field angle is selectable from among the plurality of light distribution field angles.