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Title:
バリア層を有する光学素子、光学系および投映プロジェクタ装置
Document Type and Number:
Japanese Patent JP4174216
Kind Code:
B2
Abstract:
An optical device has a light-transmitting optical substrate formed with a multilayer film and a barrier layer disposed on the multilayer film side thereof. The light-transmitting optical substrate has a refractive index Ns (at a reference wavelength of 632.8 nm) falling within the range of 1.7<=Ns<=1.9, whereas the barrier layer has a refractive index Nb (at a reference wavelength of 632.8 nm) falling within the range of -0.1<=Nb-Ns<=0.1.

Inventors:
小澤 直樹
榎本 淳
安田 賢司
小島 良雄
守屋 哲
茂田 正信
作間 俊哉
Application Number:
JP2002010767A
Publication Date:
October 29, 2008
Filing Date:
January 18, 2002
Export Citation:
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Assignee:
フジノン株式会社
日本ビクター株式会社
International Classes:
G02B1/11; G02B5/04; G02B1/115; G02B5/28; G02B5/26; G03B21/00
Domestic Patent References:
JP2000275402A
JP6184730A
JP2001356297A
Attorney, Agent or Firm:
川野 宏