Title:
LIGHT DISTRIBUTION CONTROL DEVICE, LIGHT-EMITTING DEVICE USING SAME, AND METHOD OF PRODUCING LIGHT DISTRIBUTION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/004975
Kind Code:
A1
Abstract:
Provided is a light distribution control device and a light-emitting device that uses the light distribution control device, which can be miniaturized, and with which stable, wide light distribution characteristics can be obtained. The light distribution control device of the light-emitting device (100x) is provided with: a first optical member (113) comprising ZnO mounted on an LED (101) using a translucent adhesive (104); and a second optical member (112) covering the first optical member (113). A first recessed section (1131), which opens in a regular hexagon shape, the opening space of which gradually widens, is disposed on the first optical member (113). The first recessed section (1131) is formed by an inner wall surface (1132) with an inclined surface that is regarded as the base of one side of an open hexagon. The outside of the first optical member (113) is formed by the outer wall surface (1134) of a trapezoid. A second recessed section (1122), which is set up in such a manner that light with circular peaks due to the light distribution characteristics of light that has passed through the first optical member (113) is entirely reflected, is disposed on the second optical member (112).
Inventors:
MURAI, Akihiko (())
村井 章彦 (())
KUME, Masahiro (())
粂 雅博 (())
NAKAMURA, Akiko (())
村井 章彦 (())
KUME, Masahiro (())
粂 雅博 (())
NAKAMURA, Akiko (())
Application Number:
JP2011/003820
Publication Date:
January 12, 2012
Filing Date:
July 04, 2011
Export Citation:
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
MURAI, Akihiko (())
村井 章彦 (())
KUME, Masahiro (())
粂 雅博 (())
パナソニック株式会社 (〒01 大阪府門真市大字門真１００６番地 Osaka, 〒5718501, JP)
MURAI, Akihiko (())
村井 章彦 (())
KUME, Masahiro (())
粂 雅博 (())
International Classes:
F21V5/04; F21S2/00; F21V5/00; G02B3/04; H01L33/54; H01L33/58; F21Y101/02
Attorney, Agent or Firm:
MAEDA, Hiroshi et al. (Osaka-Marubeni Bldg, 5-7Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
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Claims:
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