Title:
OPTICAL FILTER MODULE
Document Type and Number:
Japanese Patent JP2005241996
Kind Code:
A
Abstract:
To provide a compact optical filter module with little wave surface distortion, especially, a multiplexer/demultiplexer, which is provided with optical multi-layer films of which the surface bending produced by internal stress of the films is small.
The optical filter module is provided with the optical multi-layer films 12 to 24 and holding members 11 to 15, and the holding members 21 to 24 have at least one or more flat surface parts on a part of their surfaces, and the optical multi-layer films 21 to 24 are stuck to the flat surface parts 11-15.
Inventors:
AOKI KAZUO
Application Number:
JP2004051989A
Publication Date:
September 08, 2005
Filing Date:
February 26, 2004
Export Citation:
Assignee:
NIKON CORP
International Classes:
G02B5/28; (IPC1-7): G02B5/28
Attorney, Agent or Firm:
Yoshio Inoue
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