会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Fresnel lens sheet and rear projection screen
    • 菲涅尔透镜片和背投屏幕
    • US07196845B2
    • 2007-03-27
    • US10779626
    • 2004-02-18
    • Yukio KokuzawaKatsuyuki MuraiMitsuhiro Akiyama
    • Yukio KokuzawaKatsuyuki MuraiMitsuhiro Akiyama
    • G03B21/56G03B21/60G02B3/08
    • G02B3/08G03B21/625
    • A Fresnel lens sheet comprising a Fresnel lens substrate and a Fresnel lens, whose surface of the light source side has an average pitch of 200 μm or smaller and ten point roughness of 3 to 15 μm, a rear projection screen obtained by assembling the Fresnel lens sheet and a lenticular lens sheet, and a process for producing these. With the use of the Fresnel lens sheet and the rear projection screen in accordance with the present invention, a labyrinth light inside the screen and a surface reflection are diffused effectively and a ghost caused by them is remarkably reduced. Accordingly, the rear projection television employing the Fresnel lens sheet and the rear projection screen of the present invention provides excellent images without ghost light.
    • 一种菲涅耳透镜片,包括菲涅尔透镜基板和菲涅尔透镜,其光源侧的表面的平均间距为200μm或更小,10点粗糙度为3至15μm,通过组装菲涅尔透镜获得的背投屏幕 片状物和双凸透镜片,以及它们的制造方法。 利用根据本发明的菲涅耳透镜片和背投屏幕,屏幕内的迷宫光和表面反射被有效地扩散,并且由它们引起的鬼影显着减少。 因此,采用本发明的菲涅耳透镜片和背投屏幕的背投电视提供了没有重影的优良图像。
    • 8. 发明授权
    • Multi-layer film
    • 多层胶片
    • US5955180A
    • 1999-09-21
    • US956911
    • 1997-10-23
    • Masahiro HaradaMakoto TakahashiKatsuya MaruyamaKatsuyuki Murai
    • Masahiro HaradaMakoto TakahashiKatsuya MaruyamaKatsuyuki Murai
    • B32B27/34
    • B32B27/34Y10S428/91Y10T428/24942Y10T428/2495Y10T428/24959Y10T428/31725Y10T428/31728Y10T428/31732Y10T428/31739Y10T428/31743Y10T428/3175
    • The invention relates to a multi-layer film comprising a layer (A) made of a polyamide (a), a layer (B) made of a mixed polyamide (b.sub.3) of a polyamide (b.sub.1) and an aliphatic polyamide (b.sub.2), a layer (C) made of an adhesive polyolefin (c.sub.1) or a mixed resin (c.sub.3) of an adhesive polyolefin (c.sub.1) and a polyolefin (c.sub.2), and a layer (D) made of a polyolefin (d), whereinthe layer constitution is such that the layers are arranged in order of the layer (A)/the layer (B)/the layer (C)/the layer (D), andthe layer (B) is made of a mixed polyamide (b.sub.3) made up of 60 to 95% by weight of a polyamide (b.sub.1) obtained from a diamine comprising 70 mol % or more of meta-xylylenediamine and a dicarboxyic acid comprising 70 mol % or more of an .alpha.,.omega.-aliphatic dicarboxylic acid having 6 to 12 carbon atoms and 40 to 5% by weight of an aliphatic polyamide (b.sub.2) having a semicrystallization time of 30 sec or less at 160.degree. C. and a solubility parameter (SP value) of 13.+-.1.5.
    • 本发明涉及一种多层膜,其包含由聚酰胺(a)制成的层(A),由聚酰胺(b1)和脂族聚酰胺(b2)的混合聚酰胺(b3)制成的层(B) 由粘合剂聚烯烃(c1)或粘合剂聚烯烃(c1)和聚烯烃(c2)的混合树脂(c3)和由聚烯烃(d)制成的层(D))制成的层(C),其中 层构成为层(A)/层(B)/层(C)/层(D)的顺序排列,层(B)由混合聚酰胺(b3) )由60至95重量%的由包含70摩尔%以上间苯二甲胺的二胺和包含70摩尔%以上的α,ω-脂族二羧酸的二羧酸得到的聚酰胺(b1) 6〜12个碳原子和40〜5重量%的在160℃下半结晶时间为30秒以下的脂肪族聚酰胺(b2),溶解度参数(SP值)为13 +/- 1.5。