Title:
MEMBER FOR CONTROLLING LUMINOUS FLUX, LIGHT-EMITTING DEVICE, AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/176393
Kind Code:
A1
Abstract:
A member for controlling luminous flux (100) has an incidence surface (110) and an emitting surface (120). The incidence surface (110) is a pyramidal surface having a recessed shape relative to the bottom of the member for controlling luminous flux (100), and having rounded borders between the individual facets. The horizontal cross-section of the incidence surface (110) is substantially similar in shape to that of an n-hedral irradiated surface (410). In the horizontal cross-section of the emitting surface (120), each of the straight lines connecting together adjacent angles of the n angles that correspond to the n angles of the irradiated surface (410) is substantially parallel to the side that corresponds to the horizontal cross-section of the incidence surface (110). The horizontal cross-section of the emitting surface (120) is the same as the n-hedron formed by the straight lines in the cross section, or fits inside the n-hedron.
Inventors:
YAMADA KYOUHEI
KAWAHARA NORIYUKI
KAWAHARA NORIYUKI
Application Number:
PCT/JP2012/003758
Publication Date:
December 27, 2012
Filing Date:
June 08, 2012
Export Citation:
Assignee:
ENPLAS CORP (JP)
YAMADA KYOUHEI
KAWAHARA NORIYUKI
YAMADA KYOUHEI
KAWAHARA NORIYUKI
International Classes:
F21V5/04; F21V5/00; H01L33/58; F21Y101/02
Foreign References:
| JP2009176471A | 2009-08-06 | |||
| JP2011054756A | 2011-03-17 | |||
| JP2007227410A | 2007-09-06 | |||
| JP2011077518A | 2011-04-14 |
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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Claims: