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Patent Searching and Data


Title:
LIGHTING APPARATUS
Document Type and Number:
Japanese Patent JP2008123725
Kind Code:
A
Abstract:

To provide a lighting apparatus which controls luminance unevenness in a light emitting surface when receiving plane light from a point light emitting source.

A light guide body 12 of the lighting apparatus 1 includes a plurality of light introducing portions 17 each having an incident surface 15 and a reflecting surface 19. The reflecting surface 19 is formed so that at least part of light which is emitted from a light emitting element 11 and enters from the incident surface 15 can make incidence and reflects the incident light and introduces to a light guiding surface 20 which is a virtual plane surface vertical to the light-emitting surface 16. The light-emitting elements 11 are provided in the same number of the light introducing portions 17. Each of the light emitting elements 11 is arranged to face the incident surface 15 of the light introducing portion 17 so that a light emitting direction A can be inclined against a light guiding direction B vertical to the light guiding surface 20. The plurality of the light introducing portions 17 are arranged in order in an X direction parallel to the light guiding surface 20. Out of the plurality of the light introducing portions 17, at least two of the light introducing portions 17 have an incident surface 15 formed on one end part in the X direction parallel to the light guide surface 17 and a reflecting surface 19 formed over one end part through the other end part in the X direction.


Inventors:
INOKUCHI TSUKASA
Application Number:
JP2006303314A
Publication Date:
May 29, 2008
Filing Date:
November 08, 2006
Export Citation:
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Assignee:
SHARP KK
International Classes:
F21V8/00; G02F1/13357; F21Y101/02
Attorney, Agent or Firm:
Keiichiro Saikyo
Takeshi Sugiyama