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.

Date of Patent:
Sep. 02, 2003

Filed:

Sep. 10, 2001
Applicant:
Inventors:

Nobuyoshi Hagiuda, Yokohama, JP;

Hideki Matsui, Fujisawa, JP;

Zhaoxiang Chen, Kawasaki, JP;

Assignee:

Nikon Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 1/503 ; G03B 1/506 ; G03B 1/100 ;
U.S. Cl.
CPC ...
G03B 1/503 ; G03B 1/506 ; G03B 1/100 ;
Abstract

A dimming plate for dimming light from an internal flash device of a camera, is disposed on the external flash device of the present invention which is mounted for use on a mounting seat of the camera. A two-lamp-lighting photographing is carried out in a state where the light from the internal flash device of the camera is dimmed by covering a luminescent unit of the internal flash device with the dimming plate of the external flash device. Thereby the two-lamp-lighting photographing can be carried out easily and reliably, where the light emission of the external flash device is used as a main light source, and the light emission of the internal flash device of the camera as a supplementary light source. The external flash device becomes inexpensive because the two-lamp-lighting photographing can be carried out only by incorporating the dimming plate therein without a special sub-luminescent unit disposed.


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