PLATE-SHAPED FOCUSING OPTICAL SYSTEM PLANE LIGHT SOURCE, AND DISPLAY BOX AND FOCUSING OPTICAL SYSTEM LIGHTING SYSTEM USING THE SAME

Japanese Patent JP2016192264

A

PROBLEM TO BE SOLVED: To provide a plate-shaped focusing optical system plane light source of thin total thickness, having an irradiation object surface of high illuminance uniformity and having a light radiation surface smaller than the irradiation object surface.SOLUTION: A plate-shaped focusing optical system plane light source comprises a plate-shaped planar light source and a plate-shaped focusing member, irradiating an irradiation object surface C with light and having a maximum thickness Tof 50 mm or less. The plate-shaped planar light source includes a planar light radiation body, and a planar emission surface A emitting the radiation light radiated from the planar light radiation body as emission light, and the plate-shaped focusing member can receive the emission light, radiates the received light as irradiation light, and includes a planar irradiation surface B for focusing at least one direction of the planar emission surface A to the irradiation object surface C. Further an area Sof the planar irradiation surface B is once or more and 1.5 times or less as large as an area Sof the planar emission surface A.SELECTED DRAWING: Figure 1

JP3080256	[Name of invention] Lighting device for photographs
JP6650447	Lighting device
JP2020004626	LUMINAIRE

MATSUDA KUNIHARU

JP2015070428A

November 10, 2016

March 30, 2015

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KANEKA CORP

F21S2/00; F21V5/00; F21V5/02; F21V5/04; G02B19/00; G09F13/04; H01L51/50; H05B33/02

JPH0963767A	1997-03-07
JP2011003512A	2011-01-06
JP2001204595A	2001-07-31
JP2012531700A	2012-12-10
JP2008547161A	2008-12-25

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