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:
Nov. 05, 2002
Filed:
Jun. 23, 2000
Applicant:
Inventor:
Keiichi Tsuchida, Fuchu, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 4/100 ;
U.S. Cl.
CPC ...
H05B 4/100 ;
Abstract
The flash light emitting device includes a charging circuit for charging the light emitting energy into a capacitor by boosting a power supply voltage, and a light emitting circuit for making a flash light emitting tube emit light with the use of the energy of the capacitor. The flash light emitting device further includes a timer which counts a lapsed time from a point of time that a given amount of charging to the capacitor performed by the charging circuit is completed, and a charging controller which controls whether a next charging operation by the charging circuit is to be started or not based on the lapsed time counted by the timer.