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Title:
LINEAR LIGHT SOURCE UNIT STRUCTURE
Document Type and Number:
Japanese Patent JP2015197963
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a linear light source unit structure having a hole between the light source side of a light guide member and a light-emitting surface, and diffusing incident light.SOLUTION: In a linear light source unit structure, the shape of a hole is configured by two opposite surfaces having a curvature on a light source side and a light-emitting side, the surface on the light source side has a curvature at which light made incident from a light source is substantially transmitted to the light-emitting side, and the curvature of the surface on the light-emitting surface side is larger than the curvature of the surface of the light source side. Also, in the linear light source unit structure, the hole has an angle tilt with respect to an optical axis from the light source and is linear slit shape, and at least two holes are aligned.

Inventors:
OSHIMA KENSUKE
Application Number:
JP2014074019A
Publication Date:
November 09, 2015
Filing Date:
March 31, 2014
Export Citation:
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Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F21S2/00; G02B6/00; G02B19/00; H01L33/00
Domestic Patent References:
JP2009032535A2009-02-12
JP2007200768A2007-08-09
JP2001035229A2001-02-09
JP2009032535A2009-02-12
JP2007200768A2007-08-09
JP2001035229A2001-02-09
JP2000149635A2000-05-30
JPH11284803A1999-10-15
JP2005071798A2005-03-17
Attorney, Agent or Firm:
山口 修之