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Patent Searching and Data


Title:
ILLUMINATING DEVICE
Document Type and Number:
Japanese Patent JP2013137985
Kind Code:
A
Abstract:

To provide an illuminating device capable of reducing color irregularities without damaging luminance of illumination light of the illuminating device.

The illuminating device 10 has a plurality of light-emitting elements adjacently arranged, and a fluorescer as a light source 12. A light path of light emitted from the light source 12 is deflected by a plurality of prisms 16 arranged on a surface 14a of a lens sheet 14 opposite to the light source 12 and symmetrically arranged with an optical axis C of the light source 12 as the center after light emitted from the light source 12 is incident to the lens sheet 14 arranged on the optical axis C of the light source 12. Further, the light wherein its light path is deflected is scattered by a plurality of light scattering elements 22 arranged on a surface 14b of the lens sheet 14 at the other side to the light source 12, at various angles, and is emitted from the lens sheet 14 while reducing its directivity. Therefore, color mixture of the light emitted through the lens sheet 14 and emitted from the light source 12 can be accelerated, and color irregularities being inevitable in the case when a pseudo-white light-emitting diode is used for the light source 12 of the illuminating device 10 can be also lessened.


Inventors:
TAKAYAMA RYOHEI
ASAI MASAKI
SAKAI KOJI
Application Number:
JP2012000150406
Publication Date:
July 11, 2013
Filing Date:
July 04, 2012
Export Citation:
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Assignee:
MINEBEA CO LTD
International Classes:
F21V5/02; F21S8/02; F21S8/04; F21V3/04; F21V5/04; F21Y101/02
Domestic Patent References:
JP2009252436A2009-10-29
JP2004031312A2004-01-29
JP2007079082A2007-03-29
Foreign References:
US20100284194A12010-11-11
Attorney, Agent or Firm:
萼 経夫
宮崎 嘉夫
小野塚 薫
田上 明夫
▲高▼ 昌宏