Title:
OPTICAL SYSTEM AND EYEPIECE
Document Type and Number:
WIPO Patent Application WO/2008/010560
Kind Code:
A1
Abstract:
An eyepiece (EL1) includes a first lens (L1) having a positive refractive power
and a second lens (L2) having a positive refractive power which are arranged in
this order from an object (O). A contact multi-layer diffractive optics (DOE)
is arranged on an optical surface of the first lens (L1) or the second lens (L2).
The contact multi-layer diffractive optics (DOE) includes a first optic element
(51) having relief pattern and a second optic element (52) which is in contact
with the surface of the first optic element (51) where the relief pattern is formed.
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Inventors:
SUZUKI KENZABURO (JP)
Application Number:
PCT/JP2007/064293
Publication Date:
January 24, 2008
Filing Date:
July 12, 2007
Export Citation:
Assignee:
NIKON CORP (JP)
SUZUKI KENZABURO (JP)
SUZUKI KENZABURO (JP)
International Classes:
G02B25/00; G02B5/18; G02B13/18
Foreign References:
| JP2001021817A | 2001-01-26 | |||
| JP2004126393A | 2004-04-22 | |||
| JPH1138330A | 1999-02-12 |
Other References:
See also references of EP 2045644A4
"An Introduction to Diffractive Optical Element", 2006
"An Introduction to Diffractive Optical Element", 2006
Attorney, Agent or Firm:
OHNISHI, Shogo (HIGASHI-IKEBUKURO SS BUILDING 1F 3-20-3, Higashi-Ikebukuro, Toshima-k, Tokyo 13, JP)
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