公开(公告)号：US20080048149A1

公开(公告)日：2008-02-28

申请号：US11872267

申请日：2007-10-15

申请人： Kara YOSHIDA ,  Tomoki GUNJIMA ,  Nobuhiko TAKESHITA ,  Yuzuru TANABE ,  Hiroki HOTAKA ,  Hiromasa SATO

发明人： Kara YOSHIDA ,  Tomoki GUNJIMA ,  Nobuhiko TAKESHITA ,  Yuzuru TANABE ,  Hiroki HOTAKA ,  Hiromasa SATO

IPC分类号： C09K19/38 ,  C09K19/30 ,  C09K19/20

CPC分类号： C08F222/1006 ,  C07C255/55 ,  C07C2601/14 ,  C08F220/30 ,  C09K19/2007 ,  C09K19/30 ,  C09K19/3068 ,  C09K19/32 ,  C09K19/322 ,  C09K19/3852 ,  C09K19/3861 ,  C09K2019/0448 ,  G02F2001/13775 ,  G02F2203/50 ,  G11B7/1353 ,  G11B7/1369 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041

摘要： To provide optical elements such as a phase plate suitably used in a broadband range and a polarizing diffraction element excellent in diffraction efficiency, a polymerizable liquid crystal composition to be used for them, and an optical head device using them. A polymerizable liquid crystal composition containing a polymerizable compound having a mesogen structure comprising the following condensed benzene ring group (A) and the following 6-membered cyclic group (B) bonded to at least one bond in the group (A) directly or via a connecting group —OCO— or —COO—, and a monovalent terminal group bonded to each of both terminals of the mesogen structure, at least one of the terminal groups being a monovalent organic group having a polymerizable moiety: condensed benzene ring group (A): a naphthalenediyl group having bonds at 1-position and at 4- or 5-position, or an anthracenediyl group having bonds at 1- or 9-position and at 4-, 5- or 10-position; 6-membered cyclic group (B): a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a bivalent group having at least two groups selected from these groups bonded directly or via a connecting group.

摘要翻译： 为了提供适用于宽带范围的相位差的光学元件和衍射效率优异的偏振衍射元件，使用它们的可聚合液晶组合物和使用它们的光学头装置。 一种可聚合液晶组合物，其含有具有下述缩合苯环基团（A）的介晶结构的可聚合化合物和与（A）组中的至少一个键键合的下述6元环基团（B） 连接基团-OCO-或-COO-，以及键合到介晶结构的两个末端的一价末端基团，至少一个端基是具有可聚合部分的一价有机基团：缩合苯环基团（A） ：在1-位和4-或5-位具有键的萘二基或在1-或9-位和4-或5-位具有键的蒽二基; 6元环基（B）：1,4-亚苯基，反-1,4-亚环己基或具有选自这些基团中的至少两个基团的二价基团直接键合或通过连接基团。

公开(公告)号：US06304312B1

公开(公告)日：2001-10-16

申请号：US09101776

申请日：1998-07-22

申请人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

发明人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

IPC分类号： G02F113

CPC分类号： G11B7/1353 ,  G02B5/1833 ,  G02F1/133365 ,  G02F1/292 ,  G02F2001/133757 ,  G11B7/22

摘要： As an optically anisotropic diffraction grating in an optical head for reading and/or writing of an optically recording medium, optically anisotropic diffraction grating which comprises an optically anisotropic polymer liquid crystal sandwiched between two transparent substrates are used. The optically anisotropic polymer liquid crystal can have an alignment direction periodically changed to form a grating of different refractive indices, obtaining a high-utilization efficiency by light ray and a high degree of reliability.

摘要翻译： 作为用于读取和/或写入光学记录介质的光学头中的光学各向异性衍射光栅，使用包含夹在两个透明基板之间的光学各向异性聚合物液晶的光学各向异性衍射光栅。 光学各向异性聚合物液晶可以具有周期性地改变的取向方向以形成不同折射率的光栅，通过光线获得高利用效率和高可靠性。

公开(公告)号：US20110003957A1

公开(公告)日：2011-01-06

申请号：US12884302

申请日：2010-09-17

申请人： Hiroyuki ARISHIMA ,  Hiroki HOTAKA

发明人： Hiroyuki ARISHIMA ,  Hiroki HOTAKA

IPC分类号： C08F30/08 ,  C07F7/08

CPC分类号： G11B7/1353 ,  C07F7/081 ,  C08F230/08 ,  G02B1/04 ,  C08L51/085

摘要： A compound capable of satisfying both high refractive index and high light resistance, and a photocurable composition containing it, are provided. Further, an optical element having good light resistance against blue laser light, and an optical head device using it, are provided.A polymerizable compound represented by SiA1A2A3A4 wherein silicon and four cyclic groups are bonded directly or via oxygen. each of A1, A2, A3 and A4 which are independent of one another, is —(O)m—X; and each of four m's which are independent of one another, is 0 or 1. X is preferably a phenyl group. From 0 to 3 hydrogen atoms in the phenyl group are substituted by a polymerizable substituent represented by CH2═CR—COO—Y—, and some or all of remaining hydrogen atoms in the phenyl group may be substituted by a methyl group or a fluorine atom.

摘要翻译： 提供能够满足高折射率和高耐光性的化合物以及含有它的光固化性组合物。 此外，提供了对蓝色激光具有良好的耐光性的光学元件和使用它的光学头装置。 由SiA1A2A3A4表示的可聚合化合物，其中硅和四个环状基团直接或通过氧键合。 彼此独立的A1，A2，A3和A4中的每一个为 - （O）m-X; 并且彼此独立的四个m中的每一个为0或1.X优选为苯基。 苯基中0〜3个氢原子被被CH2 = CR-COO-Y-代表的可聚合取代基取代，苯基中剩余的氢原子中的一些或全部可被甲基或氟原子取代 。

公开(公告)号：US06891147B2

公开(公告)日：2005-05-10

申请号：US10639507

申请日：2003-08-13

申请人： Ryuichiro Goto ,  Hiroki Hotaka ,  Yoshiharu Ooi ,  Reiko Nozawa ,  Noriaki Shimodaira ,  Ryota Murakami

发明人： Ryuichiro Goto ,  Hiroki Hotaka ,  Yoshiharu Ooi ,  Reiko Nozawa ,  Noriaki Shimodaira ,  Ryota Murakami

IPC分类号： G11B7/1353 ,  G02B5/18 ,  G02B5/20 ,  G02B27/10 ,  G11B7/00 ,  G11B7/09 ,  G11B11/00

CPC分类号： G11B7/1353 ,  G02B5/1866 ,  G02B5/203 ,  G02B27/1006 ,  G02B27/1086 ,  G02B27/144 ,  G02B27/145 ,  G11B7/127 ,  G11B2007/0006

摘要： An optical head device having an optical element capable of transmitting without diffracting light having a wavelength emitted from a two-wavelength semiconductor laser and capable of diffracting light having another wavelength, to provide high utilization efficiency of light in a stable manner.For this purpose, a wavelength-selective diffraction element 1A comprising a transparent substrate having a front surface on which a grating having a periodically recessed and projected shape in cross section is formed and a filling member 13A filled in the concavo-convex portion 12A of the grating wherein the concavo-convex portion of the grating is provided with an organic pigment having the absorption edge of light in a region having a shorter wavelength than the wavelength λ1, and the concavo-convex member and the filling member have the same refractive index with respect to either one of light having a wavelength λ1 and light having a wavelength λ2, and they have different refractive indices with respect to the other light having a wavelength, is disposed between the light source and the objective lens of the optical head device.

摘要翻译： 一种具有光学元件的光学头装置，其能够在不衍射具有从双波长半导体激光器发射的波长的光并且能够衍射具有另一波长的光的情况下传输，从而以稳定的方式提供高的光的利用效率。 为此目的，一种波长选择性衍射元件1A，其包括具有前表面的透明基板，其上形成有横截面为周期性凹凸形状的光栅;填充部件13A，其填充在凹凸部12中 A的光栅，其中光栅的凹凸部分设置有在波长比波长λ1更短的区域中具有光的吸收边的有机颜料，并且凹凸 构件和填充构件相对于具有波长λ1的光和具有波长λ2的光的任一个具有相同的折射率，并且它们具有不同的折射率 相对于具有波长的其他光，设置在光学头与光学头装置的物镜之间。

公开(公告)号：US06180028B2

公开(公告)日：2001-01-30

申请号：US09269205

申请日：1999-03-31

申请人： Hiroki Hotaka ,  Tomoki Gunjima ,  Mitsuru Kurosawa ,  Hiromasa Sato ,  Yuzuru Tanabe

发明人： Hiroki Hotaka ,  Tomoki Gunjima ,  Mitsuru Kurosawa ,  Hiromasa Sato ,  Yuzuru Tanabe

IPC分类号： C09K1912

CPC分类号： G11B7/1353 ,  C09K19/3852 ,  C09K19/44

摘要： High molecular liquid crystal obtained by photopolymerizing a liquid crystal composition which comprises CH2═CHCOO—X—OC6H4—C6H4CN (X is an alkylene group) and CH2═CHCOOC6H4—C6H4CN. An optical element which is a polarized hologram element made by using the high molecular liquid crystal and an optical head having the polarized hologram element as a beam splitter.

摘要翻译： 通过使包含CH 2 = CHCOO-X-OC 6 H 4 -C 6 H 4 CN（X为亚烷基）和CH 2 = CHCOOC 6 H 4 -C 6 H 4 CN的液晶组合物光聚合获得的高分子液晶。 作为通过使用高分子液晶制成的偏振全息元件的光学元件和具有偏振全息元件的光学头作为分束器。

公开(公告)号：US08211990B2

公开(公告)日：2012-07-03

申请号：US12884302

申请日：2010-09-17

申请人： Hiroyuki Arishima ,  Hiroki Hotaka

发明人： Hiroyuki Arishima ,  Hiroki Hotaka

IPC分类号： G02B1/00 ,  C08F30/08

CPC分类号： G11B7/1353 ,  C07F7/081 ,  C08F230/08 ,  G02B1/04 ,  C08L51/085

摘要： A compound capable of satisfying both high refractive index and high light resistance, and a photocurable composition containing it, are provided. Further, an optical element having good light resistance against blue laser light, and an optical head device using it, are provided.A polymerizable compound represented by SiA1A2A3A4 wherein silicon and four cyclic groups are bonded directly or via oxygen. each of A1, A2, A3 and A4 which are independent of one another, is —(O)m—X; and each of four m's which are independent of one another, is 0 or 1. X is preferably a phenyl group. From 0 to 3 hydrogen atoms in the phenyl group are substituted by a polymerizable substituent represented by CH2═CR—COO—Y—, and some or all of remaining hydrogen atoms in the phenyl group may be substituted by a methyl group or a fluorine atom.

摘要翻译： 提供能够满足高折射率和高耐光性的化合物以及含有它的光固化性组合物。 此外，提供了对蓝色激光具有良好的耐光性的光学元件和使用它的光学头装置。 由SiA1A2A3A4表示的可聚合化合物，其中硅和四个环状基团直接或通过氧键合。 彼此独立的A1，A2，A3和A4中的每一个为 - （O）m-X; 并且彼此独立的四个m中的每一个为0或1.X优选为苯基。 苯基中0〜3个氢原子被被CH2 = CR-COO-Y-代表的可聚合取代基取代，苯基中剩余的氢原子中的一些或全部可被甲基或氟原子取代 。

公开(公告)号：US20070104895A1

公开(公告)日：2007-05-10

申请号：US11618177

申请日：2006-12-29

申请人： Hiroki HOTAKA ,  Hiroshi Kumai ,  Makoto Hasegawa ,  Yayoi Yamamori

发明人： Hiroki HOTAKA ,  Hiroshi Kumai ,  Makoto Hasegawa ,  Yayoi Yamamori

IPC分类号： C09K19/00 ,  C09K19/52

CPC分类号： G11B7/128 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3066 ,  C09K19/54 ,  G02F1/0045 ,  G02F1/133723 ,  Y10T428/10

摘要： To provide a liquid crystal optical modulation element capable of stably modulating a laser beam having a wavelength of at most 500 nm for a long period of time. A liquid crystal optical modulation element to modulate a laser beam having a wavelength of at most 500 nm, which comprises a layer of a liquid crystal composition sandwiched between a pair of transparent substrates facing each other, characterized in that each of the pair of transparent substrates has an electrode and an alignment film comprising a polyimide on the surface which faces the other transparent substrate, the alignment film and the liquid crystal composition are in contact with each other, and the liquid crystal composition contains an antioxidant.

摘要翻译： 提供能够长时间稳定地调制波长为500nm以下的激光的液晶光调制元件。 一种用于调制波长为500nm以下的激光束的液晶光调制元件，其特征在于，所述液晶光学调制元件包括夹在一对彼此面对的一对透明基板之间的液晶组合物层，其特征在于，所述一对透明基板 在与其他透明基板相对的表面上具有包含聚酰亚胺的电极和取向膜，取向膜和液晶组合物彼此接触，并且液晶组合物含有抗氧化剂。

公开(公告)号：US20110310721A1

公开(公告)日：2011-12-22

申请号：US13156719

申请日：2011-06-09

申请人： Hiroyuki Arishima ,  Hiroki Hotaka

发明人： Hiroyuki Arishima ,  Hiroki Hotaka

IPC分类号： C07F7/08 ,  G11B7/00 ,  C08F120/68 ,  G02B5/18 ,  C07C69/01 ,  C08F130/08

CPC分类号： G02B5/1866 ,  C07C69/54 ,  C07F7/081 ,  C08F120/68 ,  C08F130/08 ,  G02B1/041 ,  C08L33/08

摘要： A polymerizable compound represented by the following formula (1): wherein A is a hydrogen atom or a group selected from the following formulae (2) to (5): VwH(3-W)C—  (2) PhxY(3-x)Si—  (3) J-(CH2)m1—CHl(CH3)(2-l)—  (4) J-(CH2)n1—SiPhp1(CH3)(2-p1)—  (5); B is a group selected from the following formulae (6) and (7): J-(CH2)m2—CHk(CH3)(2-k)—  (6) J-(CH2)n2—SiPhp2(CH3)(2-p2)—  (7); w is an integer of from 0 to 3; V is a methyl group or an ethyl group, provided that when w is from 2 to 3, a plurality of V's may be different groups, x is an integer of from 0 to 3, Y is a group selected from a methyl group, a cyclohexyl group, a tert-butyl group, a sec-butyl group and an isopropyl group, provided that when x is 0 or 1, a plurality of Y's may be different groups, J is a group selected from CH2═CR—COO—, an epoxy group, a vinyl group and a vinyl ether group, R is a hydrogen atom or a methyl group, I is an integer of from 0 to 1, k is an integer of from 0 to 2, provided that when A is a hydrogen atom, k is not 2, each of m1 and m2 which are independent of each other, is from 0 to 12, each of n1 and n2 which are independent of each other, is from 1 to 12, and each of p1 and p2 which are independent of each other, is from 0 to 2; provided that some or all of hydrogen atoms in the substituent V in the formula (2), the phenyl group and the substituent Y in the formula (3) and the alkylene group in the formulae (4) to (7) may be substituted by a methyl group, a methoxy group or a fluorine atom, and some or all of hydrogen atoms in the biphenyl group or the biphenylene group may be substituted by a methyl group, a methoxy group or a fluorine atom.

公开(公告)号：US07534370B2

公开(公告)日：2009-05-19

申请号：US11872267

申请日：2007-10-15

申请人： Kara Yoshida ,  Tomoki Gunjima ,  Nobuhiko Takeshita ,  Yuzuru Tanabe ,  Hiroki Hotaka ,  Hiromasa Sato

发明人： Kara Yoshida ,  Tomoki Gunjima ,  Nobuhiko Takeshita ,  Yuzuru Tanabe ,  Hiroki Hotaka ,  Hiromasa Sato

IPC分类号： C09K19/32 ,  C09K19/38 ,  C09K19/30 ,  C09K19/20 ,  C07C69/75 ,  C07C69/753 ,  G02B5/30

CPC分类号： C08F222/1006 ,  C07C255/55 ,  C07C2601/14 ,  C08F220/30 ,  C09K19/2007 ,  C09K19/30 ,  C09K19/3068 ,  C09K19/32 ,  C09K19/322 ,  C09K19/3852 ,  C09K19/3861 ,  C09K2019/0448 ,  G02F2001/13775 ,  G02F2203/50 ,  G11B7/1353 ,  G11B7/1369 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041

摘要： To provide optical elements such as a phase plate suitably used in a broadband range and a polarizing diffraction element excellent in diffraction efficiency, a polymerizable liquid crystal composition to be used for them, and an optical head device using them.A polymerizable liquid crystal composition containing a polymerizable compound having a mesogen structure comprising the following condensed benzene ring group (A) and the following 6-membered cyclic group (B) bonded to at least one bond in the group (A) directly or via a connecting group —OCO— or —COO—, and a monovalent terminal group bonded to each of both terminals of the mesogen structure, at least one of the terminal groups being a monovalent organic group having a polymerizable moiety: condensed benzene ring group (A): a naphthalenediyl group having bonds at 1-position and at 4- or 5-position, or an anthracenediyl group having bonds at 1- or 9-position and at 4-, 5- or 10-position; 6-membered cyclic group (B): a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a bivalent group having at least two groups selected from these groups bonded directly or via a connecting group.

摘要翻译： 为了提供适用于宽带范围的相位差的光学元件和衍射效率优异的偏振衍射元件，使用它们的可聚合液晶组合物和使用它们的光学头装置。 一种可聚合液晶组合物，其含有具有下述缩合苯环基团（A）的介晶结构的可聚合化合物和与（A）组中的至少一个键键合的下述6元环基团（B） 连接基团-OCO-或-COO-，以及键合到介晶结构的两个末端的一价末端基团，至少一个端基是具有可聚合部分的一价有机基团：缩合苯环基团（A） ：在1-位和4-或5-位具有键的萘二基或在1-或9-位和4-5或10-位具有键的蒽二基; 6元环基（B）：1,4-亚苯基，反-1,4-亚环己基或具有选自这些基团中的至少两个基团的二价基团直接键合或通过连接基团。

公开(公告)号：US06271966B1

公开(公告)日：2001-08-07

申请号：US09524742

申请日：2000-03-13

申请人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

发明人： Yuzuru Tanabe ,  Tomoki Gunjima ,  Hiromasa Sato ,  Hiroki Hotaka

IPC分类号： G02B518

CPC分类号： G11B7/1353 ,  G02B5/1833 ,  G11B7/22

摘要： An object is to provide an optical head device whereby the light utilization efficiency can be increased and which can be produced at a low cost. A glass substrate 1 having projections and recesses 2 formed by patterning a SiON type transparent thin film on its inner surface by dry etching, and a second glass substrate 3 having a polyimide film 4 formed as an alignment film on its inner surface, are laminated with a space, the periphery is sealed by a sealing material made of an epoxy resin 5, and liquid crystal 6 is injected under vacuum into the interior to form an optically anisotropic diffraction grating. On the outer surface of this second glass substrate 3, a quarter-wave film 7 is laminated, and a third glass substrate 9 is bonded by a photopolymer 8 to obtain a diffracting element 10. This diffracting element 10 is disposed between a light source and an optical recording medium to obtain an optical head device.

摘要翻译： 本发明的目的是提供一种能够提高光利用效率并且可以以低成本生产的光学头装置.1。一种玻璃基板1，其具有通过在其内表面上图案化SiON型透明薄膜而形成的凸部和凹部2， 干法蚀刻，并且在其内表面上具有形成为取向膜的聚酰亚胺膜4的第二玻璃基板3层叠有空间，周边由环氧树脂5制成的密封材料密封，液晶6为 在真空下注入内部以形成光学各向异性衍射光栅。 在该第二玻璃基板3的外表面上层叠四分之一波长膜7，通过光聚合物8将第三玻璃基板9接合，得到衍射元件10.该衍射元件10配置在光源和 光学记录介质，以获得光学头装置。