公开(公告)号：US07701537B2

公开(公告)日：2010-04-20

申请号：US11712954

申请日：2007-03-02

申请人： Hideo Takezoe ,  Byoungchoo Park ,  Myoung Hoon Song ,  Jisoo Hwang ,  Takehiro Toyooka ,  Suzushi Nishimura

发明人： Hideo Takezoe ,  Byoungchoo Park ,  Myoung Hoon Song ,  Jisoo Hwang ,  Takehiro Toyooka ,  Suzushi Nishimura

IPC分类号： G02F1/1335

CPC分类号： G02F1/133536 ,  G02F1/1334 ,  G02F2001/133543 ,  H01L31/02327

摘要： An optical diode. A cholesteric liquid crystal (CLC) layer has a selective reflection wavelength band with a left-handed helical structure, and a phase shifter for changing a phase difference between two intrinsic polarized light components of left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer. When left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer is incident on the phase shifter in the optical diode, the phase shifter turns the left-handed circularly polarized light into right-handed circularly polarized light, which can be transmitted through the CLC layer. When left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer is incident on the CLC layer, it is selectively reflected by the CLC layer.

摘要翻译： 光二极管。 胆甾型液晶（CLC）层具有左旋螺旋结构的选择性反射波长带，以及用于改变具有选择性波长内的波长的左旋圆偏振光的两个本征偏振光分量之间的相位差的移相器 CLC层的反射波长带。 当具有CLC层的选择反射波长带内的波长的左旋圆偏振光入射到光二极管中的移相器上时，移相器将左旋圆偏振光转换成右旋圆偏振光， 其可以通过CLC层传输。 当具有CLC层的选择反射波长带内的波长的左旋圆偏振光入射到CLC层时，其被CLC层选择性地反射。

公开(公告)号：US20070221921A1

公开(公告)日：2007-09-27

申请号：US11712954

申请日：2007-03-02

申请人： Hideo Takezoe ,  Byoungchoo Park ,  Myoung Song ,  Jisoo Hwang ,  Takehiro Toyooka ,  Suzushi Nishimura

发明人： Hideo Takezoe ,  Byoungchoo Park ,  Myoung Song ,  Jisoo Hwang ,  Takehiro Toyooka ,  Suzushi Nishimura

IPC分类号： H01L29/04 ,  H01L31/00 ,  H01L29/10 ,  H01L31/036

CPC分类号： G02F1/133536 ,  G02F1/1334 ,  G02F2001/133543 ,  H01L31/02327

摘要： An optical diode which can lower the cost and save electric power is provided. An optical diode 21 of the present invention comprises a cholesteric liquid crystal (CLC) layer 2 having a selective reflection wavelength band with a left-handed helical structure, and a phase shifter 24 for changing the phase difference between two intrinsic polarized light components of left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer 2. When left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer 2 is incident on the phase shifter 24 in the optical diode 21, for example, the phase shifter 24 turns the left-handed circularly polarized light into right-handed circularly polarized light, this right-handed circularly polarized light can be transmitted through the CLC layer 2. When left-handed circularly polarized light having a wavelength within the selective reflection wavelength band of the CLC layer 2 is incident on the CLC layer 2, on the other hand, this left-handed circularly polarized light is selectively reflected by the CLC layer 2. Thus, an optical diode characteristic is realized. This optical diode 21 does not require a large amount of time and labor to manufacture. Further, since no nonlinear optical effect is utilized, it is not necessary for laser light having such a high intensity as to cause the nonlinear optical effect to be incident as incident light.

摘要翻译： 提供了可以降低成本并节省电力的光二极管。 本发明的光二极管21包括具有左旋螺旋结构的选择性反射波长带的胆甾型液晶（CLC）层2和用于改变左侧两个固有偏振光分量之间的相位差的移相器24 具有在CLC层2的选择反射波长带内的波长的直立圆偏振光。 当具有CLC层2的选择反射波长带内的波长的左旋圆偏振光入射到光二极管21中的移相器24上时，例如，移相器24将左旋圆偏振光转换成 右旋圆偏振光，该右旋圆偏振光可透过CLC层2。 当具有CLC层2的选择反射波长带内的波长的左旋圆偏振光入射到CLC层2时，另一方面，该左旋圆偏振光被CLC层2有选择地反射。 因此，实现了光二极管特性。 该光二极管21不需要大量的制造时间和劳力。 此外，由于不使用非线性光学效果，因此不需要具有如强度高的激光作为入射光入射到非线性光学效应。