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Patent Searching and Data


Title:
LUMINOUS FLUX CONTROL MEMBER AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/005008
Kind Code:
A1
Abstract:
Disclosed is a luminous flux control member (3) comprising: a lid section (8) positioned, via an air layer, over one or two or more light-emitting elements (2) positioned on top of a substrate (4), and formed so as to intersect with the optical axis of the light-emitting elements (2); and side wall sections (6) that extend from the outer edge of the lid section (8) towards the substrate (4) side. The inner surface (10) of the lid section (8) is a concave surface with the center section thereof positioned closer to the light-emitting elements (2) than the outer peripheral section, and is covered by a transparent reflective film (13). The transparent reflective film (13) reflects some of the light from the light-emitting elements (2) towards the side wall sections (6) and allows the remaining light from the light-emitting elements (2) to pass through. The outer surface of the lid section (8) makes light that has entered after passing through the transparent reflective film (13) radiate out towards the outside of the lid section (8). The side wall sections (6) make light that has reached the inner surface (17) of the side wall sections (6) after being reflected by the transparent reflective film (13) and light that has directly reached the inner surface (17) of the side wall sections (6) from the light-emitting elements (2) radiate out from the outer surface (18) of the side wall sections (6) towards the outside.

Inventors:
NAKAMURA, Masato (())
Application Number:
JP2011/003914
Publication Date:
January 12, 2012
Filing Date:
July 07, 2011
Export Citation:
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Assignee:
Enplas Corporation (2-30-1, Namiki Kawaguchi-sh, Saitama 34, 〒3320034, JP)
株式会社エンプラス (〒34 埼玉県川口市並木2丁目30番1号 Saitama, 〒3320034, JP)
International Classes:
F21V3/04; F21V3/00; F21V3/02; G02B5/08; G02B13/00; G02B13/18; G02B17/02; H01L33/60; F21Y101/02
Foreign References:
JP3148721U2009-02-26
JP2010003941A2010-01-07
Attorney, Agent or Firm:
WASHIDA, Kimihito (8th Floor, Shinjuku First West Bldg. 1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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Claims: