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:
Jun. 26, 2001
Filed:
Apr. 05, 1999
Osamu Miyauchi, Narashino, JP;
Kunioki Takahashi, Narashino, JP;
Seiko Precision Inc., , JP;
Abstract
A shutter for a camera has a film advance mechanism for advancing film past a shutter opening and a stroboscope for emitting light. The shutter has a base plate having the shutter opening, opening sectors for undergoing opening movement in an operational state to open the shutter opening during a shutter release operation, and closing sectors for undergoing closing movement in an operational state to close the shutter opening during the shutter release operation. A first detecting device detects the operational state of the opening sectors and outputs a signal to the stroboscope to emit light. A second detecting device detects the operational state of the closing sectors and outputs a signal for winding up the film. A non-opened state of the shutter opening is detected after the shutter release operation when the second detecting device detects the operational state of the closing sectors before the first detecting device detects the operational state of the opening sectors.