-
公开(公告)号：US20100020671A9
公开(公告)日：2010-01-28
申请号：US11045088
申请日：2005-01-31
IPC分类号： G11B7/135
CPC分类号： G11B7/1367 , G02B27/0037 , G02B27/4238 , G02B27/4261 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： The present invention provides a phase correction element which can be used for recording and/or reproducing an information of three types of optical disks for HD, DVD and CD by employing a single objective lens for HD, and an optical head device. The phase correction element 100 of present invention comprises a first phase correction layer 10A formed in a region of numerical aperture NA2, and a first phase plate 30A integrally formed; the first phase correction layer 10A comprising a concavo-convex portion having a rotational symmetry with respect to the optical axis of incident light and having a cross-sectional shape of a saw-tooth-form or a saw-tooth-form whose convex portions are each approximated by a step form; the first phase plate 30A generating a birefringent phase difference of about an odd number times of π/2 for linearly polarized light having a wavelength of λ1; and the phase correction element 100 having a function of not changing a transmitted wavefront of the wavelength of λ1 and changing a transmitted wavefront of the wavelength of λ2 or transmitted wavefront of both wavelengths of λ2 and λ3 when three types of incident light in a λ1=410 nm wavelength band, a λ2=650 nm wavelength band and a λ3=780 nm wavelength band respectively, are incident.
摘要翻译： 本发明提供了一种相位校正元件，其可用于通过采用用于HD的单个物镜和光学头装置来记录和/或再现用于HD，DVD和CD的三种类型的光盘的信息。 本发明的相位校正元件100包括形成在数值孔径NA2的区域中的第一相位校正层10A和一体形成的第一相位板30A; 第一相位校正层10A包括相对于入射光的光轴具有旋转对称性并具有锯齿形或锯齿形的横截面形状的凹凸部，其凸部为 每个都用步骤形式近似; 第一相位板30A产生波长λ1的线偏振光的π/ 2奇数倍的双折射相位差; 并且相位校正元件100具有不改变λ1的波长的发射波前的功能，并且当λ1= 3的三种类型的入射光被改变时，改变λ2和λ3的两个波长的λ2波长或透射波前的透射波前的功能， 410nm波长带，λ2= 650nm波长带和λ3= 780nm波长带。
-
公开(公告)号：US20050226122A1
公开(公告)日：2005-10-13
申请号：US11045088
申请日：2005-01-31
CPC分类号： G11B7/1367 , G02B27/0037 , G02B27/4238 , G02B27/4261 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： The present invention provides a phase correction element which can be used for recording and/or reproducing an information of three types of optical disks for HD, DVD and CD by employing a single objective lens for HD, and an optical head device. The phase correction element 100 of present invention comprises a first phase correction layer 10A formed in a region of numerical aperture NA2, and a first phase plate 30A integrally formed; the first phase correction layer 10A comprising a concavo-convex portion having a rotational symmetry with respect to the optical axis of incident light and having a cross-sectional shape of a saw-tooth-form or a saw-tooth-form whose convex portions are each approximated by a step form; the first phase plate 30A generating a birefringent phase difference of about an odd number times of π/2 for linearly polarized light having a wavelength of λ1; and the phase correction element 100 having a function of not changing a transmitted wavefront of the wavelength of λ1 and changing a transmitted wavefront of the wavelength of λ2 or transmitted wavefront of both wavelengths of λ2 and λ3 when three types of incident light in a λ1=410 nm wavelength band, a λ2=650 nm wavelength band and a λ3=780 nm wavelength band respectively, are incident.
摘要翻译： 本发明提供了一种相位校正元件，其可用于通过采用用于HD的单个物镜和光学头装置来记录和/或再现用于HD，DVD和CD的三种类型的光盘的信息。 本发明的相位校正元件100包括形成在数值孔径NA 2 2的区域中的第一相位校正层10A和整体形成的第一相位板30A; 第一相位校正层10A包括相对于入射光的光轴具有旋转对称性并具有锯齿形或锯齿形的横截面形状的凹凸部，其凸部 各自以阶梯形式近似; 第一相位板30A对波长为λ1的线偏振光产生大约奇数倍的π/ 2的双折射相位差; 并且相位校正元件100具有不改变λ1波长的发射波前的功能，并且改变λ2的波长的发射波前或发射波前的发射波前 当λλ1= 410nm波长带中的三种类型的入射光，λλ> 2nm波长的λ2波长和λ3波长时， 2λ= 650nm波长带和λ3 3 = 780nm波长带。
-
公开(公告)号：US07688700B2
公开(公告)日：2010-03-30
申请号：US11045088
申请日：2005-01-31
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G02B27/0037 , G02B27/4238 , G02B27/4261 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： A phase correction element comprising a first phase correction layer formed in a region of numerical aperture NA2, and a first phase plate; the first phase correction layer comprising a concavo-convex portion having a rotational symmetry with respect to the optical axis of incident light and having a cross-sectional shape of a saw-tooth-form or a saw-tooth-form whose convex portions are each approximated by a step form; the first phase plate generating a birefringent phase difference of about an odd number times of π/2 for linearly polarized light of λ1; and the phase correction element that does change a transmitted wavefront of λ1 and changing a transmitted wavefront of the λ2 or transmitted wavefront of both wavelengths of λ2 and λ3 when three types of incident light at λ1=410 nm, λ2=650 nm and λ3=780 nm respectively, are incident.
摘要翻译： 一种相位校正元件，包括形成在数值孔径NA2的区域中的第一相位校正层和第一相位板; 所述第一相位校正层包括相对于入射光的光轴具有旋转对称性并具有锯齿形状或锯齿形状的横截面形状的凹凸部，其凸部各自 用步骤形式近似; 对于λ1的线偏振光，第一相位板产生大约奇数倍的pref / / 2的双折射相位差; 以及当λ1= 410nm，λ2= 650nm和λ3= 3nm的入射光时，改变λ1的发射波前并改变λ2和λ3两个波长的λ2或发射波前的发射波阵面的相位校正元件， 780 nm。
-
公开(公告)号：US06917576B2
公开(公告)日：2005-07-12
申请号：US10401889
申请日：2003-03-31
申请人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
发明人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
CPC分类号： G11B7/22 , G02B5/3083 , G02B7/008 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1369 , G11B7/139 , G11B7/13925 , G11B11/10541 , G11B2007/0006
摘要： An adhesive is coated on at least one surface of a thin film of organic material having birefringent properties and a phase-difference producing function, and a fixing substrate having transmitting or reflecting properties is bonded to the thin film of organic material by the adhesive, wherein materials satisfying relations of E1
摘要翻译： 将粘合剂涂覆在具有双折射性质和相位差产生功能的有机材料薄膜的至少一个表面上，并且具有透射或反射特性的固定基材通过粘合剂粘合到有机材料薄膜上，其中 满足E 1＆lt; 1＆gt;＆lt; 2＆gt;和＆lt; 3＆gt;＆lt; E＆lt; 2＆gt; 2的关系的材料，其中E 1 < / SUB>是有机材料薄膜的线性膨胀系数，E 2是粘合剂的线性膨胀系数，E 3是线膨胀系数 固定基板，有机材料薄膜的玻璃化转变温度为150°以上。 通过这样的结构，可以获得相位差的温度特性，以便减少从半导体激光源发射的振荡波长的温度变化，从而即使当发射的光的波长发生波动时，相位差也可以保持恒定 由半导体激光源因温度而异。
-
公开(公告)号：US06580674B1
公开(公告)日：2003-06-17
申请号：US09807961
申请日：2001-05-22
申请人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
发明人： Takehiko Nishiyama , Naomitsu Umemura , Hiromasa Sato , Masahiro Murakawa , Yoshiharu Ooi , Yuzuru Tanabe
IPC分类号： G11B700
CPC分类号： G11B7/22 , G02B5/3083 , G02B7/008 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1369 , G11B7/139 , G11B7/13925 , G11B11/10541 , G11B2007/0006
摘要： An adhesive is coated on at least one surface of a thin film of organic material having birefringent properties and a phase-difference producing function, and a fixing substrate having transmitting or reflecting properties is bonded to the thin film of organic material by the adhesive, wherein materials satisfying relations of E1
摘要翻译： 将粘合剂涂覆在具有双折射性质和相位差产生功能的有机材料薄膜的至少一个表面上，并且具有透射或反射特性的固定基材通过粘合剂粘合到有机材料薄膜上，其中 满足E1
-
公开(公告)号：US07564504B2
公开(公告)日：2009-07-21
申请号：US11138954
申请日：2005-05-27
申请人： Yoshiharu Ooi , Ryota Murakami , Hiromasa Sato , Takuji Nomura , Masahiro Murakawa , Yoshiyuki Miyake
发明人： Yoshiharu Ooi , Ryota Murakami , Hiromasa Sato , Takuji Nomura , Masahiro Murakawa , Yoshiyuki Miyake
IPC分类号： G02F1/13 , G02F1/1335 , G02F1/1333
CPC分类号： G11B7/1369 , G02B5/3083 , G02B27/285 , G11B7/0065
摘要： A phase plate having a reduced size and a reduced weight and having accurately parted regions while it has the same function as a conventional two-parted optical rotation plate and an optical data recording/reproducing device capable of stably recording and reproducing are presented. A phase plate P1 comprising a polymer liquid crystal film 2 held between transparent substrates i, 4, wherein the polymer liquid crystal film 2 is parted spatially in the region into which an incident light enters, so that the light transmitting the phase plate assumes a different state of polarization depending on an aligning direction of the molecules of the polymer liquid crystal film 2. The phase plate is located as a two-parted optical rotation plate in an optical data recording/reproducing device.
摘要翻译： 具有减小尺寸和减轻重量并具有精确分离区域的相位板，同时具有与常规双分光学旋转板和能够稳定记录和再现的光学数据记录/再现装置相同的功能。 夹持在透明基板i，4之间的聚合物液晶膜2的相位板P1，其中聚合物液晶膜2在空间上分散在入射光入射的区域中，使得透射相位板的光呈现不同的状态 取决于聚合物液晶膜2的分子的排列方向的偏振状态。相位板被定位为光学数据记录/再现装置中的两分光学旋转板。
-
公开(公告)号：US20050213212A1
公开(公告)日：2005-09-29
申请号：US11138954
申请日：2005-05-27
申请人： Yoshiharu Ooi , Ryota Murakami , Hiromasa Sato , Takuji Nomura , Masahiro Murakawa , Yoshiyuki Miyake
发明人： Yoshiharu Ooi , Ryota Murakami , Hiromasa Sato , Takuji Nomura , Masahiro Murakawa , Yoshiyuki Miyake
IPC分类号： G02B5/30 , G02B27/28 , G11B7/00 , G11B7/0065 , G11B7/135
CPC分类号： G11B7/1369 , G02B5/3083 , G02B27/285 , G11B7/0065
摘要： A phase plate having a reduced size and a reduced weight and having accurately parted regions while it has the same function as a conventional two-parted optical rotation plate and an optical data recording/reproducing device capable of stably recording and reproducing are presented. A phase plate P1 comprising a polymer liquid crystal film 2 held between transparent substrates 1, 4, wherein the polymer liquid crystal film 2 is parted spatially in the region into which an incident light enters, so that the light transmitting the phase plate assumes a different state of polarization depending on an aligning direction of the molecules of the polymer liquid crystal film 2. The phase plate is located as a two-parted optical rotation plate in an optical data recording/reproducing device.
摘要翻译： 具有减小尺寸和减轻重量并具有精确分离区域的相位板，同时具有与常规双分光学旋转板和能够稳定记录和再现的光学数据记录/再现装置相同的功能。 夹持在透明基板1,4之间的聚合物液晶膜2的相位板P1，其中聚合物液晶膜2在空间上分散在入射光入射的区域中，使得透射相位板的光呈现不同的状态 取决于聚合物液晶膜2的分子的取向方向的极化状态。 相位板在光学数据记录/再现装置中被定位为两分光学旋转板。
-
公开(公告)号：US07764354B2
公开(公告)日：2010-07-27
申请号：US11313694
申请日：2005-12-22
申请人： Yoshiharu Ooi , Masahiro Murakawa
发明人： Yoshiharu Ooi , Masahiro Murakawa
IPC分类号： G02F1/13
CPC分类号： G02B6/2706 , G02B5/1814 , G02B5/3041 , G02B5/3083 , G02B6/2746 , G02B6/2766 , G02B27/286 , G02B27/4272 , G02F1/133528 , G02F2001/133538 , G02F2001/133638 , G02F2203/48
摘要： A multi-layer diffraction type polarizer is formed by laminating at least two polarizing diffraction gratings each having a birefringent material which straightly transmits incident light having a first polarization direction without functioning as a diffraction grating, and diffracts incident light having a second polarization direction perpendicular to the first polarization direction by functioning as a diffraction grating. Further, in order to realize an optical attenuator having a high extinction ratio even at low voltage, a phase plate made of an organic thin film is provided to cancel the retardation of the liquid crystal cell remaining when the voltage is applied. Further, in order to rotate the polarization direction of a linearly polarized incident light, the liquid crystal cell is provided with a λ/4 phase plate comprising an organic thin film.
摘要翻译： 通过层叠至少两个具有双折射材料的偏光衍射光栅形成多层衍射型偏振片，所述双折射材料直线透射具有第一偏振方向的入射光，而不用作衍射光栅，并且将具有第二偏振方向的入射光垂直于 通过用作衍射光栅的第一偏振方向。 此外，为了实现即使在低电压下具有高消光比的光衰减器，也提供了由有机薄膜制成的相位板，以抵消当施加电压时残留的液晶单元的延迟。 此外，为了旋转线偏振的入射光的偏振方向，液晶单元设置有包含有机薄膜的λ/ 4相位板。
-
公开(公告)号：US20060103778A1
公开(公告)日：2006-05-18
申请号：US11313694
申请日：2005-12-22
申请人： Yoshiharu Ooi , Masahiro Murakawa
发明人： Yoshiharu Ooi , Masahiro Murakawa
IPC分类号： G02F1/133
CPC分类号： G02B6/2706 , G02B5/1814 , G02B5/3041 , G02B5/3083 , G02B6/2746 , G02B6/2766 , G02B27/286 , G02B27/4272 , G02F1/133528 , G02F2001/133538 , G02F2001/133638 , G02F2203/48
摘要： A multi-layer diffraction type polarizer and a liquid crystal element capable of realizing a stable high extinction ratio is provided. Further, a liquid crystal element is obtained, which can rotate the polarization direction maintaining high linearity of output light when linearly polarized light is incident. A multi-layer diffraction type polarizer is formed by laminating at least two polarizing diffraction gratings each having a birefringent material which straightly transmits incident light having a first polarization direction without functioning as a diffraction grating, and diffracts incident light having a second polarization direction perpendicular to the first polarization direction by functioning as a diffraction grating. Further, in order to realize an optical attenuator having a high extinction ratio even at low voltage, a phase plate made of an organic thin film is provided to cancel the retardation of the liquid crystal cell remaining when the voltage is applied. Further, in order to rotate the polarization direction of a linearly polarized incident light, the liquid crystal cell is provided with a λ/4 phase plate comprising an organic thin film.
摘要翻译： 提供能够实现稳定的高消光比的多层衍射型偏振器和液晶元件。 此外，获得当线偏振光入射时可以使偏振方向旋转保持输出光的高线性的液晶元件。 通过层叠至少两个具有双折射材料的偏光衍射光栅形成多层衍射型偏振片，所述双折射材料直线透射具有第一偏振方向的入射光，而不用作衍射光栅，并且将具有第二偏振方向的入射光垂直于 通过用作衍射光栅的第一偏振方向。 此外，为了实现即使在低电压下具有高消光比的光衰减器，也提供了由有机薄膜制成的相位板，以抵消当施加电压时残留的液晶单元的延迟。 此外，为了旋转线性偏振入射光的偏振方向，液晶单元设置有包含有机薄膜的λ/ 4相位板。
-
公开(公告)号：US20120062848A1
公开(公告)日：2012-03-15
申请号：US13227793
申请日：2011-09-08
CPC分类号： G02B27/286 , G02B27/48 , G03B21/2033 , H04N9/3161
摘要： A projection type display apparatus includes: a light source section including at least one light source for emitting coherent light; an image light generating section for modulating the light emitted from the light source section so as to generate image light; a projection section for projecting the image light; and a depolarization element for transmitting the incident light in a state that a polarization state of at least a part of the light is changed, the depolarization being provided on an optical path of the light emitted from the light source section, wherein a plurality of unit regions having a particular shape are aligned in the depolarization element.
摘要翻译： 投影型显示装置包括：光源部，其包括用于发射相干光的至少一个光源; 图像光产生部分，用于调制从光源部分发射的光以产生图像光; 用于投影图像光的投影部分; 以及去极化元件，用于在至少一部分光的偏振状态改变的状态下透射入射光，所述去偏振设置在从所述光源部发射的光的光路上，其中，多个单元 具有特定形状的区域在去极化元件中对准。
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.026 秒)