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. 27, 1986
Filed:
May. 07, 1984
Hiroaki Nakamura, Hachioji, JP;
Olympus Optical, Co., Tokyo, JP;
Abstract
A series controlled electronic flash of automatic emission control type includes a switching element connected in series with a commutating switching element for selectively charging a commutation capacitor. A trigger signal is repeatedly applied to a main switching element, the commutating switching element and the charging switching element in a given sequence to enable a continued emission at substantially constant brightness level to be obtained from a flash discharge tube. A trigger capacitor may be connected with pair of switching elements for charging and discharging the trigger capacitor. A trigger signal may be repeatedly applied to the pair of switching elements for charging and discharging the trigger capacitor, to the main switching element, to the commutating switching element and the commutation capacitor charging switching element in a given sequence, thereby allowing a multiple emission to be obtained intermittently and at a high rate from the flash discharge tube.