Title:
OPTICAL MEMBER, IMAGING DEVICE USING OPTICAL MEMBER, AND METHOD OF PRODUCING OPTICAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2005/111668
Kind Code:
A1
Abstract:
An optical member used for an imaging device capable of obtaining high-quality images of all directions. An optical member (5) with a hollow-circular shape, capable of being connected to an imaging optical unit (4) that includes a light collecting optical system (2) collecting incident light to form an optical image and includes an imaging element (3) for converting the optical image formed by the light collecting optical system into an image signal and outputting the signal. The inner peripheral surface of a side of the optical member (5) has a reflection preventive structure body (8) where structure units having a predetermined shape are periodically arranged in an array form at intervals smaller than the shortest wavelength of light, out of incident light, contributing to imaging.
Inventors:
YAMAMOTO YOSHIHARU
YOSHIKAWA MOTONOBU
TANAKA YASUHIRO
HAYASHI KATSUHIKO
UMETANI MAKOTO
YOSHIKAWA MOTONOBU
TANAKA YASUHIRO
HAYASHI KATSUHIKO
UMETANI MAKOTO
Application Number:
PCT/JP2005/008868
Publication Date:
November 24, 2005
Filing Date:
May 16, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
YAMAMOTO YOSHIHARU
YOSHIKAWA MOTONOBU
TANAKA YASUHIRO
HAYASHI KATSUHIKO
UMETANI MAKOTO
YAMAMOTO YOSHIHARU
YOSHIKAWA MOTONOBU
TANAKA YASUHIRO
HAYASHI KATSUHIKO
UMETANI MAKOTO
International Classes:
B29C59/02; B29C59/04; G02B1/11; G02B13/06; G02B17/08; G03B37/00; H04N5/225; (IPC1-7): G02B1/11; B29C59/02; G02B17/08; G03B37/00; H04N5/225
Domestic Patent References:
| WO2004031815A1 | 2004-04-15 |
Foreign References:
| JP2001223922A | 2001-08-17 | |||
| JPH11331654A | 1999-11-30 | |||
| JP2003240904A | 2003-08-27 | |||
| JP2003025431A | 2003-01-29 |
Attorney, Agent or Firm:
Ogasawara, Shiro (3-11 Enokich, Suita-shi Osaka 53, JP)
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