Title:
回折光学素子および内視鏡
Document Type and Number:
Japanese Patent JP5159998
Kind Code:
B2
Abstract:
Provided is a diffractive optical element (1) that is formed by laminating two optical material layers (2 and 3) formed of different energy-cured resins; in which a relief pattern (4) is formed at the interface between the two optical material layers (2 and 3); and that satisfies the following conditional expressions:
wherein d 1 is the center plate thickness (mm) of one optical material layer 2 that is cured first, d 2 is the center plate thickness (mm) of the other optical material layer 3 that is cured later, and ÆE is the effective diameter (mm) of the relief pattern 4.
Inventors:
Masahiro Katakura
Application Number:
JP2012545968A
Publication Date:
March 13, 2013
Filing Date:
February 10, 2012
Export Citation:
Assignee:
オリンパスメディカルシステムズ株式会社
International Classes:
G02B5/18; A61B1/00; G02B5/32; G02B23/24
Domestic Patent References:
| JP2005107298A | 2005-04-21 | |||
| JP2008242391A | 2008-10-09 | |||
| JP2008026440A | 2008-02-07 |
Foreign References:
| WO2009096389A1 | 2009-08-06 | |||
| WO2011136015A1 | 2011-11-03 |
Attorney, Agent or Firm:
Kunio Ueda
Noriharu Fujita
Noriharu Fujita