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Title:
OPTICAL COMPONENT, LIGHTING DEVICE, AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2011158914
Kind Code:
A
Abstract:

To increase the brightness of light to be emitted and to restrict the occurrence of siderobe and Moire interference fringe.

An optical component 8 is provided with substantially semispherical micro lenses 14 and prism lenses 15 having a triangular section, on a first major surface 13a of a substrate 13. The plurality of prism lenses 15 are arranged along a direction. The aspect ratio TL2/TM1 of the prism lenses 15 and the micro lenses 14 with reference to the first major surface 13a is set in the range of 10-90%. In a plan view, the surface ratio Mb/Ma of the micro lenses 14 to the first major surface 13a is in the range of 25-88%. Third projections 18 consisting of micro lenses are randomly provided on a second major surface 13b of the substrate 13 to enhance the diffusibility of light incident thereupon.


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Inventors:
NAKAGOME TOMOHIRO
IGARASHI YUUKI
EBINA KAZUYOSHI
ECHIZEN HIDENORI
Application Number:
JP2011052643A
Publication Date:
August 18, 2011
Filing Date:
March 10, 2011
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G02B5/02; F21S2/00; F21V5/00; F21V5/04; G02B3/04; G02B5/04; G02F1/13357; F21Y101/02; F21Y103/00
Domestic Patent References:
JP2011090104A2011-05-06
JP2010044379A2010-02-25



 
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