Title:
OPTICAL APPARATUS
Document Type and Number:
Japanese Patent JP2009244292
Kind Code:
A
Abstract:
To provide an optical apparatus that is arranged so as to suppress an eccentric amount of an optical axis of a second optical system from an optical axis of a first optical system.
The optical apparatus includes an eyepiece optical system 16 having a lens 16L located on the most object side and a photometric optical system 20 having a prism 21, wherein the prism 21 is arranged against the lens 16L on a positional relation that a part of effective light flux passing the lens 16L is made incident on the prism 21.
Inventors:
MORI MOTOHISA
Application Number:
JP2008087174A
Publication Date:
October 22, 2009
Filing Date:
March 28, 2008
Export Citation:
Assignee:
NIKON CORP
International Classes:
G03B13/02; G02B5/04; G02B7/02; G03B7/099; G03B7/0997
Domestic Patent References:
| JPS4955325A | 1974-05-29 |
Attorney, Agent or Firm:
Masago Onishi