Invention Grant
- Patent Title: Retractable photographic lens
- Patent Title (中): 伸缩摄影镜头
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Application No.: US11671638Application Date: 2007-02-06
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Publication No.: US07773871B2Publication Date: 2010-08-10
- Inventor: Kazunori Ishizuka
- Applicant: Kazunori Ishizuka
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2006-031675 20060208
- Main IPC: G03B17/00
- IPC: G03B17/00 ; G03B5/02 ; G02B7/02

Abstract:
A retractable photographic lens including a photographing optical system includes a plurality of optical elements including at least two radially-retractable optical elements; wherein the plurality of optical elements are aligned with an optical axis in an operating state of the retractable photographic lens. When the retractable photographic lens moves from the operating state to a fully retracted state, the two radially-retractable optical elements of the plurality of optical elements are radially retracted to respective radially retracted positions thereof away from the optical axis in different radial directions and moved rearward in the optical axis direction to be positioned adjacent to each other in a plane orthogonal to the optical axis.
Public/Granted literature
- US20070183769A1 RETRACTABLE PHOTOGRAPHIC LENS Public/Granted day:2007-08-09
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