Title:
光学素子およびその製造方法ならびに照明装置、窓材および建具
Document Type and Number:
Japanese Patent JP5609406
Kind Code:
B2
Abstract:
An optical element includes a first surface, a second surface positioned to face the first surface, and a plurality of reflecting surfaces arrayed in a first region defined by the first surface and the second surface, wherein the reflecting surfaces have a first length in a first direction vertical to the first surface and are arrayed at a pitch in a second direction perpendicular to the first direction, light incident on one of the first surface and the second surface is reflected by the reflecting surfaces toward the other surface, and predetermined parameters satisfy predetermined relational formulae representing conditions for ensuring total reflection at the reflecting surfaces and for avoiding total reflection at a light emergent surface.
Inventors:
鈴木 真樹
長谷川 はやと
榎本 正
長谷川 はやと
榎本 正
Application Number:
JP2010178947A
Publication Date:
October 22, 2014
Filing Date:
August 09, 2010
Export Citation:
Assignee:
デクセリアルズ株式会社
International Classes:
F21S11/00; G02B5/00
Attorney, Agent or Firm:
Patent business corporation Tajime international patent firm