Invention Grant
- Patent Title: Observation optical system
- Patent Title (中): 观察光学系统
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Application No.: US12099602Application Date: 2008-04-08
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Publication No.: US08456762B2Publication Date: 2013-06-04
- Inventor: Masayuki Mizusawa
- Applicant: Masayuki Mizusawa
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Pillsbury Winthrop Shaw Pittman, LLP
- Priority: JP2007-101803 20070409
- Main IPC: G02B17/00
- IPC: G02B17/00 ; A61B1/06
Abstract:
An observation optical system has a negative lens unit placed at the most object-side position; an annular prism placed on the image side of the negative lens, having a reflecting surface on the negative lens side; and an imaging lens unit arranged on the image side of the negative lens and the annular prism.
Public/Granted literature
- US20080247039A1 OBSERVATION OPTICAL SYSTEM Public/Granted day:2008-10-09
Information query
IPC分类:
| G | 物理 |
| G02 | 光学 |
| G02B | 光学元件、系统或仪器 |
| G02B17/00 | 有或无折射元件的具有反射面的系统 |
