公开(公告)号：US20070263289A1

公开(公告)日：2007-11-15

申请号：US11829136

申请日：2007-07-27

申请人： Hiroyuki MONOE ,  Kouzo YASUDA ,  Yukihiro YANAGAWA ,  Osamu KIMURA ,  Yoshio ABE ,  Katashi SAITO

发明人： Hiroyuki MONOE ,  Kouzo YASUDA ,  Yukihiro YANAGAWA ,  Osamu KIMURA ,  Yoshio ABE ,  Katashi SAITO

IPC分类号： G02B5/02

CPC分类号： G03B21/625 ,  B05C1/083 ,  G03B21/10

摘要： In a transmission type screen and other optical devices formed by combining optical sheets such as a Fresnel lens sheet and a lenticular lens sheet, the generation of stray light and defective appearance caused by a friction-reducing agent are prevented. In the optical devices such as a transmission type screen 3 formed by combining a plurality of optical sheets such as a Fresnel lens sheet 1 and a lenticular lens sheet 2, a friction-reducing agent 20 is provided on a surface of at least one of the optical sheets at a thickness of 0.3 nm or more to 10 nm or less. A coating applicator 30 for the friction-reducing agent 20 includes: a transfer roller 31; coating liquid-supplying means 32 for supplying the coating liquid 20 to the transfer roller 31; and scraping means 35 for adjusting the thickness of the coating liquid 20 adhering to the transfer roller 31. In the coating liquid 30, the surface roughness Ra (JIS B 0601-1982) of the transfer roller 31 is set to 0.01 to 1 μm.

摘要翻译： 在通过组合诸如菲涅尔透镜片和双凸透镜片的光学片形成的透射型屏幕和其它光学装置中，防止由减摩擦剂引起的杂散光的产生和不良外观。 在通过组合菲涅尔透镜片1和双凸透镜片2的多个光学片而形成的透射型屏幕3的光学器件中，在至少一个 厚度为0.3nm以上至10nm以下的光学片。 用于减摩剂20的涂布器30包括：转印辊31; 用于将涂布液20供给到转印辊31的涂布液供给装置32; 以及用于调节附着在转印辊31上的涂布液20的厚度的刮擦装置35。 在涂布液30中，转印辊31的表面粗糙度Ra（JIS B 0601-1982）设定为0.01〜1μm。