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. 10, 2012
Filed:
Dec. 17, 2008
Yasuhide Takahashi, Saitama, JP;
Koji Kawaguchi, Saitama, JP;
Yasuhide Takahashi, Saitama, JP;
Koji Kawaguchi, Saitama, JP;
Tamron Co., Ltd., Saitama-shi, JP;
Abstract
In a lens apparatus, light entering a lens barrel from an external source is incident to an optoelectric converting element for image recording. The light passing through an optical path of the lens apparatus is filtered by a filter that absorbs a specific range of optical wavelengths and is provided in a filter frame. The filter frame is moved to position the filter at a first position that is on the optical path or at a second position that is away from the optical path. A filter housing structure is provided establishing a frame moving region in which the filter frame is arranged and moves, and blocking the incidence of light from a source other than the optical path to the filter frame moving region.