Title:
DIFFRACTIVE OPTICAL ELEMENT AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/087208
Kind Code:
A1
Abstract:
Disclosed is a diffractive optical element comprising a substrate (1) which is formed of a first optical material including a first resin and which is provided with a diffraction grating (2) on a surface of the substrate, an optical regulation layer (4) which is formed of a second optical material including a second resin and which is provided on the substrate (1)to cover the diffraction grating (2), and an intermediate layer (3) which is formed of a third optical material including a third resin and which is provided between the substrate (1) and the optical regulation layer (4). The refractive index of the first optical material is smaller than the refractive index of the second optical material and the wavelength dispersion of refractive index of the first optical material is greater than the wavelength dispersion of refractive index of the second optical material.
Inventors:
MURATA AKIKO
OKADA YUKA
TAKAHARA NORIHISA
OKADA YUKA
TAKAHARA NORIHISA
Application Number:
PCT/JP2010/000587
Publication Date:
August 05, 2010
Filing Date:
February 01, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
MURATA AKIKO
OKADA YUKA
TAKAHARA NORIHISA
MURATA AKIKO
OKADA YUKA
TAKAHARA NORIHISA
International Classes:
G02B5/18; G02B3/08
Foreign References:
| JPH10268116A | 1998-10-09 | |||
| JPS63237001A | 1988-10-03 | |||
| JP2008191299A | 2008-08-21 |
Attorney, Agent or Firm:
OKUDA, SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
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