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    • 2. 发明申请
    • WIRE-GRID POLARIZER AND PROCESS FOR PRODUCING THE SAME
    • 电线极化器及其制造方法
    • US20110080640A1
    • 2011-04-07
    • US12895306
    • 2010-09-30
    • Yuriko KAIDAHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji ShidojiMasako Kawamoto
    • Yuriko KAIDAHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji ShidojiMasako Kawamoto
    • G02B5/30B05D5/06C23C16/06C23C16/44
    • G02B5/3058G02F1/133536G02F2001/133548
    • Provided is a wire grid polarizer showing a high degree of polarization, a high p-polarized light transmittance and a high s-polarized light reflectivity for light incident from a front surface and showing a low s-polarized light reflectivity for light incident from its rear surface, in the visible light region, and a process for producing such a polarizer.A wire grid polarizer comprising a light-transmitting substrate having a surface on which a plurality of ridges are formed so as to be parallel with one another at a predetermined pitch (Pp), and fine metallic wires made of a metal or a metal compound, each covering three faces of each ridge of the light-transmitting substrate, that are a top face of the ridge and two side faces that are a first side face and a second side face, extending in the longitudinal direction of the ridge; wherein the wire grid polarizer satisfies the following conditions (a) to (c): (a) the thickness Dm1 of each fine metallic wire covering the first side face of each ridge and the thickness Dm2 of the fine metallic wire covering the second side face of the ridge, satisfy the following formula (1-1) and the following formula (1-2), respectively: 0 nm
    • 本发明提供一种对从前表面入射的光的高偏振度,高p偏振光透射率和高s偏振光反射率的线栅型偏振器,对从后方入射的光显示出低s偏振光反射率 在可见光区域中的表面,以及用于制造这种偏振片的方法。 一种线栅偏振器,其特征在于,具有透光性基板,其具有以规定间距(Pp)彼此平行地形成有多个凸脊的表面,以及由金属或金属化合物构成的金属细线, 每个覆盖透光基板的每个脊的三个面,其为脊的顶面,并且是沿着脊的纵向方向延伸的第一侧面和第二侧面的两个侧面; 其中,所述线栅偏振器满足以下条件(a)〜(c):(a)覆盖所述脊的第一侧面的每个金属细线的厚度Dm1和覆盖所述第二侧面的所述金属细线的厚度Dm2 分别满足下式(1-1)和下式(1-2):0nm
    • 3. 发明申请
    • PROCESS FOR PRODUCING WIRE-GRID POLARIZER
    • 生产电网偏振器的方法
    • US20110052802A1
    • 2011-03-03
    • US12900272
    • 2010-10-07
    • Yuriko KaidaHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji ShidojiMasako Kawamoto
    • Yuriko KaidaHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji ShidojiMasako Kawamoto
    • B05D5/06
    • G02B5/3058G02F1/133536G02F2001/133548
    • Provided is a process for easily producing a wire grid polarizer showing a high polarization separation ability in the visible light region and having an improved transmittance in a short wavelength region.On a light-transmitting substrate 14 having a surface on which a plurality of ridges 12 are formed, an underlayer 22, first fine metallic wires 24 and second fine metallic wires 30 are formed by a vapor deposition method satisfying the conditions (A) to (F). (A) The underlayer material was vapor-deposited on a top face 16 and a first side face 18 of each ridge 12 from a direction of an angle θL. (B) The underlayer material is vapor-deposited on the top face of a first underlayer 22a and a second side face 20 from a direction of an angle of θR on the opposite side to that of the condition (A). (C) θL and θR are from 60° to 90°. (D) The height Hma1 of the underlayer 22 is from 1 to 20 nm. (E) A metal or a metal compound is vapor-deposited on the top face of the underlayer 22 and a bottom face 28 of each groove 26. (F) The height Hma2 of each first fine metallic wire 24 and the height Hp of each ridge satisfy a relation 40 nm≦Hma2≦0.9×Hp.
    • 本发明提供一种易于制造在可见光区域中具有高极化分离能力并且在短波长区域具有改善的透射率的线栅偏振器的方法。 在其上形成有多个脊12的表面的透光基板14上,通过满足条件(A)至(A)至(A))的气相沉积法形成底层22,第一细金属线24和第二细金属丝30, F)。 (A)从角度θ的方向将底层材料气相沉积在每个脊12的顶面16和第一侧面18上。 (B)下层材料从第一底层22a和第二侧面20的顶面以与角度θ的方向(A)相反的方向蒸镀。 (C)&thetas; L和& Thetas; R为60°至90°。 (D)底层22的高度Hma1为1〜20nm。 (E)金属或金属化合物气相沉积在底层22的顶面和各槽26的底面28.(F)每个第一细金属丝24的高度Hma2和每个第一细金属丝24的高度Hp 脊满足关系40nm≦̸ Hma2≦̸ 0.9×Hp。
    • 4. 发明申请
    • Wire-grid polarizer and process for producing the same
    • 线栅偏振器及其制造方法
    • US20110286094A1
    • 2011-11-24
    • US13137214
    • 2011-07-28
    • Yuriko KaidaHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji Shidoji
    • Yuriko KaidaHiroshi SakamotoTakahira MiyagiHiromi SakuraiYasuhiro IkedaEiji Shidoji
    • G02B5/30C08J7/04B05D5/06
    • G02B5/3058
    • Provided are a wire-grid polarizer, which has not only a high degree of polarization, a high p-polarized light transmittance and a high s-polarized light reflectance but also a low angle dependency and a low wavelength dependency in terms of optical properties in a visible light region, and a process for producing the same.A wire-grid polarizer 10 comprising a light-transmitting substrate 14 having a plurality of ridges 12 formed in parallel to one another at certain pitches Pp through respective flat portions 13 disposed between adjacent ridges 12, each of the ridges having a width gradually reduced from a base portion to a top portion thereof, and a metal layer 20 composed of metal or a metal compound, the metal layer covering the entirety of a first lateral face 16 of each ridge 12 and a part of the flat portion 13 adjacent to the first lateral face 16 such that a second lateral face 18 of each ridge 12 is covered with no metal layer or is partially covered with the metal layer; and a process for forming the metal layer 20 by vapor-depositing metal or a metal compound on the first lateral face from a direction that is substantially orthogonal to a longitudinal direction of the ridges 12 and forms an angle of from 25 to 40 degrees toward the first lateral face 16 with respect to a height direction of the ridge 12 under conditions where the metal layer is disposed at a deposition amount of from 40 to 60 nm.
    • 提供一种线栅偏振器,其具有不仅高度偏振,高p偏振光透射率和高s偏振光反射率,而且在光学性能方面具有低角度依赖性和低波长依赖性 可见光区域及其制造方法。 一种线栅偏振器10,其包括透光基板14,透光基板14具有通过设置在相邻凸条12之间的相应平坦部分13以一定的间距Pp彼此平行地形成的多个脊12,每个脊具有从 其顶部的基部和由金属或金属化合物构成的金属层20,覆盖每个脊12的第一侧面16的整体的金属层和邻近第一边的平坦部13的一部分 侧面16,使得每个脊12的第二侧面18被覆盖没有金属层或部分被金属层覆盖; 以及通过从与脊12的长度方向基本正交的方向在第一侧面上蒸镀金属或金属化合物而形成金属层20的工序,并且朝向 在金属层以40〜60nm的沉积量配置的条件下,相对于脊12的高度方向的第一侧面16。