Invention Grant
- Patent Title: Optical element and optical apparatus
- Patent Title (中): 光学元件和光学设备
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Application No.: US13165842Application Date: 2011-06-22
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Publication No.: US08422141B2Publication Date: 2013-04-16
- Inventor: Hironobu Koga
- Applicant: Hironobu Koga
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2010-144435 20100625
- Main IPC: G02B3/00
- IPC: G02B3/00
Abstract:
In a gradient-index optical element, there is a difference in an abnormal partial dispersion characteristic of a medium between a position on an optical axis of the radial gradient-index optical element and a position on an effective beam diameter.
Public/Granted literature
- US20110317276A1 OPTICAL ELEMENT AND OPTICAL APPARATUS Public/Granted day:2011-12-29
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