Title:
COMPOSITE OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2007/145120
Kind Code:
A1
Abstract:
This invention relates to a composite optical element, especially a composite
optical element wherein second and third optical sections are coupled to a first
optical section. In the composite optical element, optical characteristics
are improved. A composite optical element (1) is provided with first, second
and third optical sections (10, 20, 30). The first optical section (10) has a
lens surface (13). The second optical section (20) is coupled to the first optical
section (10) on the lens surface (13), and is provided with a lens surface (22)
on a side opposite to a first coupling surface (21) which is coupled to the first
optical section (10). The third optical section (30) is coupled to the second
optical section (20) on the lens surface (22), and is provided with a lens surface
(32) on a side opposite to a second coupling surface (31) which is coupled to the
second optical section (20). On a part of the lens surface (13), a first uneven
surface section (13a) exists, on a part of the lens surface (22), a second uneven
surface section (22a) exists, and on a part of the lens surface (32), a third uneven
surface (32a) exists.
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Inventors:
MURATA, Jun (())
村田 淳 (())
村田 淳 (())
Application Number:
JP2007/061479
Publication Date:
December 21, 2007
Filing Date:
June 06, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 5718501, JP)
松下電器産業株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 5718501, JP)
MURATA, Jun (())
松下電器産業株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 5718501, JP)
MURATA, Jun (())
International Classes:
G02B5/18; G02B13/00; G11B7/135
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (Osaka-Marubeni Bldg, 5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 5410053, JP)
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