Title:
OPTICAL COMPONENT, OPTICAL COMPONENT FRONT/BACK JUDGING METHOD, AND OPTICAL COMPONENT FRONT/BACK JUDGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/072625
Kind Code:
A1
Abstract:
The front/back of an optical component having a front surface on which a protective film is laminated and a back surface on which a separator is laminated can be easily judged without disturbing the other inspections and without destroying or damaging the optical component. Such an optical component, and an optical component front/back judging method and device are provided. A front/back judging device having an analyzer (6) is used. A cross-nichols is formed between an optical component (1) and the analyzer (6). The optical component (1) is so structured that the amount of light transmitted through the cross-nichols or the hue of the transmitted light when a protective film (3) is disposed in the cross-nichols is different from that when a separator (5) is disposed therein. The light transmitted through the cross-nichols is observed. According to the amount or hue of light transmitted through the cross-nichols, it can be judged which film is placed in the cross-nichols, thus the front/back of the optical component (1) is judged.
Inventors:
NAKAI, Nobuhiko (())
Application Number:
JP2006/320946
Publication Date:
June 28, 2007
Filing Date:
October 20, 2006
Export Citation:
Assignee:
SHARP KABUSHIKI KAISHA (22-22, Nagaike-cho Abeno-ku, Osaka-sh, Osaka 22, 5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 5458522, JP)
シャープ株式会社 (〒22 大阪府大阪市阿倍野区長池町２２番２２号 Osaka, 5458522, JP)
International Classes:
G02B5/30; G02B27/28
Attorney, Agent or Firm:
UENO, Noboru (KS Iseya Building 8th Floor, 21-23 Sakae 3-chome, Naka-ku, Nagoya-sh, Aichi08, Aichi4600008, JP)
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