Title:
【発明の名称】干渉計装置
Document Type and Number:
Japanese Patent JP3336640
Kind Code:
B2
Abstract:
PURPOSE:To make a reference lens mounted on the lower position of the roof of the main body casing of an interferometer device easily exchangeable with another in accordance with the kind, etc., of a lens to be measured. CONSTITUTION:A lens mount 6 mounted with a lens 5 to be measured is positioned above a through hole 4 of the roof section 2a of the main body casing 2 of the title interferometer device and a reference lens is positioned below the mount 6 so that the reference lens can be exchanged with another in accordance with the kind of the lens 5. In order to exchange the reference lens through the hole 4 of the section 2a, the cross-sectional area of the hole 4 is made fairly larger than the maximum cross-sectional area of the optical path between the reference lens and the lens 5 to be measured so that the mounting section of the reference lens can be protruded from the upper surface of the section 2a through the hole 4 and the mount 6 is positioned above the hole 4 in a state where the mount 6 can be displaced between an operating position where the lens 5 can be set and retreated position where the hole 4 is opened.
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Inventors:
Kenichi Noguchi
Application Number:
JP28710292A
Publication Date:
October 21, 2002
Filing Date:
October 02, 1992
Export Citation:
Assignee:
Fuji Photo Optical Co., Ltd.
International Classes:
G01B9/02; G01B11/30; G01M11/00; (IPC1-7): G01B9/02; G01B11/30; G01M11/00
Domestic Patent References:
| JP46402A | ||||
| JP321806A | ||||
| JP50159755A | ||||
| JP626811A | ||||
| JP63219A |
Attorney, Agent or Firm:
Shunji Kagei