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1. (WO2018221505) LIGHT DIFFUSING MEMBER FOR LIGHTING MEMBER AND LIGHTING DEVICE

Pub. No.:    WO/2018/221505    International Application No.:    PCT/JP2018/020523
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: G02B 5/02
E06B 5/00
F21S 11/00
F21V 3/00
F21V 3/06
G02B 5/00
Applicants: SHARP KABUSHIKI KAISHA
シャープ株式会社
Inventors: ASAOKA Yasushi
浅岡 康
NISHINAKA Shumpei
西中 俊平
MATSUURA Kyoko
松浦 恭子
UEKI Shun
植木 俊
KANNO Toru
菅野 透
Title: LIGHT DIFFUSING MEMBER FOR LIGHTING MEMBER AND LIGHTING DEVICE
Abstract:
A light diffusing member for a lighting member according to one embodiment of the present invention is overlapped, at least partially, in a light transmission direction on the lighting member having a plurality of lighting portions provided on one surface thereof and having light transmitting property in a visible light region. The light diffusing member has light transmitting property and light diffusing property in the visible light region, has a thickness larger than a maximum height difference of a surface on which the plurality of lighting portions is formed, and is provided with peaks and valleys causing light to diffuse on at least any one surface of a pair of surfaces facing each other in the light transmission direction, or includes a plurality of light diffusing materials inside thereof. The average pitch of peaks and valleys or the average arrangement interval between the light diffusing materials is smaller than the pitch of the plurality of lighting portions.