Invention Grant
- Patent Title: Fresnel optical element and optical system using the same
- Patent Title (中): 菲涅尔光学元件和使用它的光学系统
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Application No.: US12924582Application Date: 2010-09-29
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Publication No.: US08194332B2Publication Date: 2012-06-05
- Inventor: Takayoshi Togino , Hisashi Ode
- Applicant: Takayoshi Togino , Hisashi Ode
- Applicant Address: JP Toyko
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Toyko
- Agency: Kenyon & Kenyon LLP
- Priority: JP2009-285932 20091217
- Main IPC: G02B3/08
- IPC: G02B3/08 ; G03B21/60
Abstract:
A Fresnel optical element has a plurality of slopes that refract or reflect light, and the variation of the slope angle between adjacent slopes is constant.
Public/Granted literature
- US20110149418A1 Fresnel optical element and optical system using the same Public/Granted day:2011-06-23
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