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1. 发明专利

JP2005037745A Polarized beam conversion element, its manufacturing method, and liquid crystal display device 审中-公开
标题翻译：极化光束转换元件及其制造方法和液晶显示器件
公开(公告)号：JP2005037745A
公开(公告)日：2005-02-10
申请号：JP2003275517
申请日：2003-07-16
申请人： Sony Corp , ソニー株式会社
发明人： KAGAWA MASAKI , HASEGAWA MASAHARU
IPC分类号： G02B5/30 , G02B27/28 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a polarized beam conversion element which can be manufactured with a simple process, whose manufacturing cost can be reduced, and also, which can attain a large surface.
SOLUTION: Inclined planes 11a and 11b facing each other while inclining in different directions are repeatedly and alternatively formed from the incident side surface 1A of a transparent base material 1(11 and 12) to the rear side 1B, and a polarized light separation film 2 is formed on the inclined planes 11a and 11b, and also, at least a quarter wavelength plate 3 and a reflection film 4 are arranged on the incident side surface 1A of the transparent base material 1 so as to be alternately positioned corresponding to a pair of adjacent inclined planes mutually facing in the opposite direction.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够以简单的工艺制造的制造成本可以降低的极化光束转换元件，并且可以获得大的表面。解决方案：从透明基材1（11和12）的入射侧面1A向后侧1B反复交替地形成朝向彼此不同方向倾斜的倾斜面11a和11b，并且偏振光分离膜2形成在倾斜平面11a和11b上，并且至少四分之一波长板3和反射膜4布置在透明基材1的入射侧表面1A上，以便相应于一对相邻的倾斜平面在相反方向相互面对。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2004272105A Polarized beam converting element and its manufacturing method, and liquid crystal display device 审中-公开
公开(公告)号：JP2004272105A
公开(公告)日：2004-09-30
申请号：JP2003065501
申请日：2003-03-11
申请人： Sony Corp , ソニー株式会社
发明人： HASEGAWA MASAHARU , KAGAWA MASAKI
IPC分类号： G02B5/30 , G02B27/28 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To provide a polarized beam converting element which can be manufactured in simple manufacturing processes without laminating many transparent substrates and for which large-area manufacturing is made possible.
SOLUTION: On main surfaces 1A and 2A of 1st and 2nd light-transmissive base materials 1 and 2, slanting parts which are sectioned in a nearly triangular shape are arrayed side by side at specified intervals so that their oblique surfaces 10 and 20 face in the same direction, and polarized light separating films 3 are formed on those oblique surfaces 10 and 20; and the light-transmissive base materials 1 and 2 are put one over the other across light-transmissive resin 4 so that the oblique surfaces 10 and 20 face each other, and light blocking parts 5 and 1/2-wavelength plates 6 are provided on reverse surfaces 1B and 2B of the light-transmissive base materials 1 and 2 at positions corresponding to the slanting parts.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2003337224A Polarization beam conversion element, its manufacturing method and liquid crystal display device 审中-公开
标题翻译：偏振光束转换元件，其制造方法和液晶显示器件
公开(公告)号：JP2003337224A
公开(公告)日：2003-11-28
申请号：JP2003047851
申请日：2003-02-25
申请人： Sony Corp , ソニー株式会社
发明人： KAGAWA MASAKI , KOBAYASHI TOMIO , HASEGAWA MASAHARU , OGAWARA SHIGEHISA , FUJIMAKI YOSHIHIRO , MORISAWA KAZUHIKO , KATAKURA HITOSHI
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a polarization beam conversion element which can be manufactured in a simple process, whose manufacturing cost can be suppressed and which, even with a large area, is easy to manufacture. SOLUTION: Inclined planes 11a and 11b facing each other with different inclination directions are alternately repeatedly formed on the surface of a transparent substrate 1 or at the middle position in the direction of thickness of the transparent substrate 1, a polarized light separating film 2 is formed on the inclined planes 11a and 11b, and at least a quarter-wave plate 3 and a reflector 4 at a position corresponding to a pair of inclined plates are arranged on the surface of light incident side of the substrate 1. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：提供一种能够以简单的制造方法制造的偏振光束转换元件，其制造成本可以被抑制，即使在大面积上也容易制造。解决方案：在透明基板1的表面上或透明基板1的厚度方向上的中间位置交替地重复形成倾斜方向不同的倾斜面11a，11b，偏振光分离膜 2形成在倾斜平面11a和11b上，并且至少四分之一波片3和对应于一对倾斜板的位置处的反射器4布置在基板1的光入射侧的表面上。
版权所有（C）2004，JPO

4. 发明专利

JP2003066231A Polarization beam splitter 审中-公开
标题翻译：偏振光束分离器
公开(公告)号：JP2003066231A
公开(公告)日：2003-03-05
申请号：JP2001253387
申请日：2001-08-23
申请人： Sony Corp , ソニー株式会社
发明人： KAGAWA MASAKI , IWAI JUNICHI
IPC分类号： G02B5/04 , G02B5/30
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive polarization beam splitter provided with a polarization separating function in a wide band by a small number of laminations with a simple film configuration.
SOLUTION: First polarized light L1 of an incident light L0 which is made incident by a prescribed angle is transmitted and second polarized light L2 of the incident light L0 is reflected in a direction which is different from a transmissive direction in the polarization beam splitter 1. The polarization beam splitter 1 includes a polarization separating film 2 consisting of the repetition structure (LHL)
m (m is an integer from 3 to 7) of a basic structure film LHL which is constituted of a high refractive index layer H and low refractive index layers L with an optical thickness being nearly equal to λ
0 /4 when the reference wave length 550 nm of the incident light L0 is expressed by λ
0 and also includes transparent substrates 3A and 3B which are arranged respectively at the sides of the light incident surface 2A and the light emission surface 2B of the polarization separating film 2 and where the refractive factor is selected to sufficiently separate the polarized light when the incident angle θof the incident light L0 to the polarization separating film 2 is 45 degrees.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过具有简单膜构造的少量叠片来提供在宽带中具有偏振分离功能的便宜的偏振分束器。解决方案：入射到规定角度的入射光L0的第一偏振光L1被透射，并且入射光L0的第二偏振光L2在与偏振分束器1中的透射方向不同的方向上被反射。偏振分束器1包括由高折射率层H和低折射率层H构成的基本结构膜LHL的重复结构（LHL）m（m为3〜7的整数）构成的偏振分离膜2 当入射光L0的参考波长550nm由λ0表示时，光学厚度几乎等于λ0/ 4的折射率层L，并且还包括分别布置在光入射侧的透明基板3A和3B 表面2A和偏振分离膜2的发光表面2B，并且其中选择折射率以在入射光束中的偏振光充分分离偏振光入射光L0与偏振光分离膜2的偏心角度θ为45度。

5. 发明专利

JP2003029031A Polarizing separation element and polarizing beam splitter using the same 审中-公开
标题翻译：偏振分离元件和使用其的极化光束分离器
公开(公告)号：JP2003029031A
公开(公告)日：2003-01-29
申请号：JP2001213231
申请日：2001-07-13
申请人： Sony Corp , ソニー株式会社
发明人： KAGAWA MASAKI
IPC分类号： G02B5/30 , G02B1/10
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive polarizing separation element having a polarizing separation function in a wide range with a simple film structure and a small number of layers and to provide a polarizing beam splitter by using the above element.
SOLUTION: The polarizing separation element 2 has repeated structures (LHL)
m containing a basic structure LHL consisting of an optically transparent high refractive index layer H having a specified refractive index with respect to incident light OI, and an optically transparent first low refractive index layer L and a second low refractive index layer L disposed to interpose the high refractive index layer H, wherein m is an integer of ≥2 and preferably 3 to 7. The beam splitter has the above polarizing separation element 2 and transparent substrates 3 formed in contact with the entrance face 2a and the exiting face 2b of the element 2 to interpose the element 2.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一种在宽范围内具有简单的膜结构和少量层的偏振分离功能的便宜的偏振分离元件，并且通过使用上述元件提供偏振分束器。解决方案：偏振分离元件2具有重复的结构（LHL）m，其含有由相对于入射光OI具有特定折射率的光学透明高折射率层H构成的基本结构LHL，以及光学透明的第一低折射率折射率层L和设置成插入高折射率层H的第二低折射率层L，其中m是> = 2的整数，优选为3至7.分束器具有上述偏振分离元件2和透明基板3 形成为与元件2的入射面2a和出射面2b接触以插入元件2。

6. 发明专利

JP2000090500A PRODUCTION OF DISK-LIKE RECORDING MEDIUM 失效
公开(公告)号：JP2000090500A
公开(公告)日：2000-03-31
申请号：JP25860698
申请日：1998-09-11
申请人： SONY CORP
发明人： KAGAWA MASAKI
IPC分类号： G11B7/26
摘要： PROBLEM TO BE SOLVED: To make the joint strength of all disk-like recording media high and uniform while maintaining high productivity. SOLUTION: This process for producing the disk-like recording media consists in joining a pair of disk half bodies 1 formed with at least signal recording layers and/or reflection layers on one main surfaces of disk substrates and formed with protective layers on the outermost layers in such a manner that the protective layers face each other via adhesives. At this time, a plurality of the disks are formed by joining a pair of the disk half bodies 2 via the adhesives. The time integrated values of the pressure applied on the formed plural disks are set approximately constant.

7. 发明专利

JPH0845094A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH0845094A
公开(公告)日：1996-02-16
申请号：JP17706094
申请日：1994-07-28
申请人： SONY CORP
发明人： IGARASHI SHUICHI , KAGAWA MASAKI
IPC分类号： G11B19/12 , G11B7/085 , G11B7/095
摘要： PURPOSE:To easily and surely assure interchangeability of an optical disk which is a recording medium by making it possible to obtain a tracking error signal of sufficient magnitude even from the conventional optical disk designed to use near IR light as a laser beam. CONSTITUTION:An identifying means 11 identifies whether the installed optical disk is designed to execute recording or reproducing by the laser beam of a wavelength of 670 to 840nm which is the wavelength longer than 450 to 550nm which is the specified wavelength or not. An offset generating means 12 is so composed as to apply a stationary offset to the focus error signal of a focus servo system.

8. 发明专利

JPH06208723A OPTICAL DISK AND ITS MANUFACTURE 失效
公开(公告)号：JPH06208723A
公开(公告)日：1994-07-26
申请号：JP12698993
申请日：1993-05-28
申请人： SONY CORP
发明人： OTOMO KATSUHIKO , KAGAWA MASAKI
IPC分类号： G11B7/013 , G11B7/24 , G11B7/26 , G11B11/10 , G11B11/105
摘要： PURPOSE:To extend the life-time of a laser light source by forming clock pits for detecting the timing of the regenerative signal of tracking servo pits in the radial direction of a disc at the pitch of l/4-l/2 of a track pitch. CONSTITUTION:When clock pits 16 are formed in the radial direction of a disk at the pitch of 1/4-1/2 of a track pitch to or in positions sufficiently separate from tracking servo pits 4, 5, the required number of clock pits can be always contained in the spot of light beam even in an off-track state. Also in the off-track state, therefore, the sufficient regenerative signal of the clock pits is always obtained in the same way as an on-track state and a high-speed seek can be realized easily.

9. 发明专利

JPH06168451A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH06168451A
公开(公告)日：1994-06-14
申请号：JP34149192
申请日：1992-11-27
申请人： SONY CORP
发明人： KAGAWA MASAKI , NAKAYAMA HIROSHI
IPC分类号： G11B7/00 , G11B7/005 , G11B7/135 , G11B11/10 , G11B11/105
摘要： PURPOSE:To increase amplitude of a signal, to improve resolution and to cope with increasing density by making the polarization direction of a laser beam linearly polarized intersect perpendicularly to the running direction at the time of reproducing a signal recorded with the minimum inversion interval. CONSTITUTION:A laser beam 35 for reading linearly polarized for a land 22 in which a pit 2 such as a VFO signal pit and the like is formed being previously formatted is made to run along a pre-group 1. And the polarization direction 38 of the beam 35 is made to intersect perpendicularly to the running direction. Thus, the beam 35 fully enters into the land 22 and can irradiate the pit 2 with full quantity of light making the polarization direction 38 intersect perpendicularly to the running direction of the beam 35. Thereby, amplitude of a signal can be increased, resolution can be improved, increasing density can be coped with.

10. 发明专利

JPH064871A METHOD FOR DETECTING SIGNAL OF OPTICAL RECORDING MEDIUM 失效
公开(公告)号：JPH064871A
公开(公告)日：1994-01-14
申请号：JP16506592
申请日：1992-06-23
申请人： SONY CORP
发明人： NAKAYAMA HIROSHI , KAGAWA MASAKI , YAMAZAKI CHOJI
IPC分类号： G11B7/00 , G11B7/005 , G11B11/105 , G11B20/10 , G11B23/30
摘要： PURPOSE:To reproduce digital data coincident with original digital data accurately even when a regenerative waveform is disturbed due to the approarch of a pit, the fluctuation of recording power and a heat reserving effect. CONSTITUTION:In an edge detecting method, a close-packed data part for forming a close-packed pit pattern is provided on the front area of an effective data part where an information pit pattern is formed and threshold voltage is set from the close-packed pit pattern 1 formed in the close-packed data part.

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