如何评价别人专利名称：TRANSMISSION SCREEN
发明人：HARANOU TAKESHI,MIZUHASHI MAMORU 申请号：JP19968082
午夜寂寞院申请日：19821116历史小论文
牵一发而动全身是什么意思
爱情之花公开号：JPS5990835A
巴厘岛温泉
儿童滑雪公开日：
19840525
专利内容由知识产权出版社提供
土豪手机
摘要：PURPOSE:To make the brightness of a screen face constant in an effective transmission scattering angle of a screen, and also to equalize the luminance on a screen face by cmbining a transmission scattering face consisting of a minute lens array with a Fresnel lens and a lenticular lens. CONSTITUTION:A titled screen is constituted by combining a minute lens array (b) on which a transmission scattering face is formed, consisting of a continuous body of a minute unit lens 2, with a wide-angle type lenticular lens (a) who lens face is a parabolic face, and also adding a Fresnel lens (c), the unit lens 2 is constituted so that a desired scattering characteristic is obtained, and the spherical faces of respective lens are made adjacent so that no flat part exists, and also are arrayed regularly. According to such constitution, it is possible to obtain a transmission type screen who scattering angle is wide, also who brightness is uniform in a necessary field of view, who luminance in the face is uniform, and who screen loss is small.
申请人：ASAHI GLASS KK
更多信息请下载全文后查看
