公开(公告)号：US20100110543A1

公开(公告)日：2010-05-06

申请号：US12607303

申请日：2009-10-28

申请人： Satoshi KAIZAWA ,  Masayuki OTO ,  Hiroshi MATSUMOTO

发明人： Satoshi KAIZAWA ,  Masayuki OTO ,  Hiroshi MATSUMOTO

IPC分类号： G02B5/30 ,  G02B1/08

CPC分类号： G02B5/3083

摘要： A laminated quarter wave plate includes: a first wave plate made of an optically uniaxial crystal material; and a second wave plate made of an optically uniaxial crystal material. In the laminated quarter wave plate, the first and second wave plates are disposed in this order from an entrance side of light so that the optical axes of the first and second wave plates intersect with each other at an angle of 90°, and a phase difference Γ1 of the first wave plate, a phase difference Γ2 of the second wave plate, an optical axis azimuth angle θ1 of the first wave plate, an optical axis azimuth angle θ2 of the second wave plate, an allowable deviation γ of the phase difference of the first wave plate, allowable deviations k1, k2 of the optical axis azimuth angles of the first and second wave plates satisfy the following relation: Γ1=360°+γ+n×360°, where −90°≦γ≦+90°, and n is a nonnegative integer; Γ2=Γ1−90° or Γ2=Γ1−270°; θ1=45°+k1; and θ2=135°+k2, and γ, k1, k2 are determined so that a polarization state of outgoing light satisfies a desired ellipticity.

摘要翻译： 叠层四分之一波片包括：由光学单轴晶体材料制成的第一波片; 以及由光学单轴晶体材料制成的第二波片。 在层叠四分之一波片中，第一波片和第二波片从光入射侧依次设置，使得第一波片和第二波片的光轴以90°的角度彼此相交，相位 第一波片的差值Ggr 1，第二波片的相位差Ggr2，第一波片的光轴方位角＆amp; 1;第二波片的光轴方位角＆amp; 2; 第一波片的相位差的允许偏差γ，第一波片和第二波片的光轴方位角的容许偏差k1，k2满足以下关系：＆Ggr; 1 = 360°+γ+ n×360° 其中-90°＆nlE;γ＆nlE; + 90°，n是非负整数; ＆Ggr; 2 =＆Ggr; 1-90°或＆Ggr; 2 =＆Ggr; 1-270°; ＆thetas; 1 = 45°+ k1; 和＆thetas; 2 = 135°+ k2，并且γ，k1，k2被确定为使得出射光的偏振状态满足期望的椭圆率。