Title:
自発光型の発光装置
Document Type and Number:
Japanese Patent JP5307717
Kind Code:
B2
Abstract:
A self-luminous light emitting device (10) having uniform luminance distribution on a light exit surface of a diffuse transmission plate and enabling reduced power consumption while maintaining wide viewing angle. The light-emitting device (10) comprises a surface light source (12) having a light-emitting surface (20a), a reflector (16), and a diffuse transmission plate (14). The reflector (16) has a light source attachment opening (24), a light exit opening (26) to which the diffuse transmission plate (14) is attached, and a reflection plane (28) as a paraboloid of revolution defined by a parabola (P) with an optical axis L of light emitted from the surface light source (12) as the axis of revolution.
Inventors:
Congratulations
Application Number:
JP2009531078A
Publication Date:
October 02, 2013
Filing Date:
September 07, 2007
Export Citation:
Assignee:
Phoenix Electric Co., Ltd.
International Classes:
H01L33/60
Domestic Patent References:
| JP2003526121A | 2003-09-02 | |||
| JP2007513382A | 2007-05-24 | |||
| JP2004267437A | 2004-09-30 | |||
| JP2007173397A | 2007-07-05 | |||
| JP2003526121A | 2003-09-02 | |||
| JP2007513382A | 2007-05-24 | |||
| JP2004267437A | 2004-09-30 | |||
| JP2007173397A | 2007-07-05 |
Attorney, Agent or Firm:
Yoshiaki Mori
Yuji Tada
Maki Ichikawa
Yuji Tada
Maki Ichikawa
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