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:
Jan. 18, 2005
Filed:
Apr. 09, 2003
Ryota Sasaki, Saitama, JP;
Yuichi Kawanabe, Saitama, JP;
Yuji Fukushima, Kasukabe, JP;
Fujinon Corporation, Saitama, JP;
Abstract
A lens barrel device includes a lens mounted in a lens frame that is threaded into an annular adjusting ring. The adjusting ring is coupled using a bayonet to a lens barrel. The lens barrel includes first and second flanges on the inner periphery of the lens barrel that define grooves for receiving bayonet projections on the annular adjusting ring. The bayonet coupling structure of the annular adjusting ring includes semispherical projections for elastically engaging inner walls of the grooves and also includes a rotation regulating stopper for engaging an end wall of an opening in one of the inner flanges so as to regulate rotation of the annular adjusting ring, and hence the lens, relative to the lens barrel. The end wall includes a groove for receiving a jig that can release the bayonet coupling structure of the annular adjusting ring from the lens barrel.