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1. 发明公开

EP2126910A4 FOCAL OFFSET RECORDING SYSTEM AND METHOD 审中-公开
标题翻译：焦距偏移记录系统和方法
公开(公告)号：EP2126910A4
公开(公告)日：2010-02-24
申请号：EP08728901
申请日：2008-02-04
申请人： HEWLETT PACKARD DEVELOPMENT CO
发明人： WEIRAUCH CHARLES R
IPC分类号： G11B7/09 , G11B7/004
CPC分类号： G11B7/00456 , G11B7/094 , G11B7/125 , G11B7/24079

3. 发明公开

EP1816642A1 Near-field optical head and method for manufacturing same 有权
标题翻译：近场光学头及其制造方法
公开(公告)号：EP1816642A1
公开(公告)日：2007-08-08
申请号：EP07075305.8
申请日：1999-11-04
申请人： SEIKO INSTRUMENTS INC.
发明人： Kato, Kenjo, c/o Seiko Instruments Inc. , Niwa, Takashi, c/o Seiko Instruments Inc. , Ichihara, Susumu, c/o Seiko Instruments Inc. , Chiba, Norio, c/o Seiko Instruments Inc. , Oumi, Manabu, c/o Seiko Instruments Inc. , Kasama, Nobuyuki, c/o Seiko Instruments Inc. , Mitsuoka, Yasuyuki, c/o Seiko Instruments Inc.
IPC分类号： G11B7/135 , G11B7/12 , G02B27/56 , G12B21/06 , G02B21/00 , G02B6/12
CPC分类号： G11B7/125 , G01Q80/00 , G02B6/4214 , G11B7/122 , G11B7/124 , G11B7/1362 , G11B7/1387 , G11B7/22 , G11B2007/13727
摘要： A near-field optical head for recording and reading-out information has a very small aperture for producing near-field light. The aperture is formed at an apex of a taper formed by an optical propagation member (4303), the optical propagation member having a tip which is sharpened toward a recording medium. A light-introducing part (3002) is provided for propagating light in a generally parallel direction with the recording medium, and a light-reflection layer (3001) reflects light, which is propagated through the light-introducing part, toward the very small aperture.
摘要翻译：用于记录和读出信息的近场光学头具有用于产生近场光的非常小的孔径。该孔形成在由光传播部件（4303）形成的锥形的顶点处，该光传播部件具有朝向记录介质锐化的尖端。提供光导入部分（3002）用于沿与记录介质大致平行的方向传播光，并且光反射层（3001）将通过光导入部分传播的光朝向非常小的光圈。

4. 发明公开

EP1735785A1 OPTICAL SCANNER WITH SYNCHRONOUS SAMPLING 有权
标题翻译：与同步采样光学扫描仪
公开(公告)号：EP1735785A1
公开(公告)日：2006-12-27
申请号：EP05728229.5
申请日：2005-04-06
申请人： Thomson Licensing
发明人： BRÄUER, Dietmar
IPC分类号： G11B7/125 , G11B7/005
CPC分类号： G11B7/125 , G11B7/005
摘要： The present invention relates to a scanner for optical storage media (5) with an improved signal?to?noise ratio. In the case of an optical scanner according to the invention having a light source (1) for generating a light beam for reading out data stored on an optical storage medium (5), the light source (1) being modulated by a radio?frequency modulator (13), and having an analog?to?digital converter (9), which converts an analog data signal generated by a photodetector (7) into a digital data signal (RF), the radio?frequency modulator (13) and the analog?to?digital converter (9) are synchronized.

5. 发明公开

EP1580738A1 Near-field optical head and method for manufacturing the same 有权
标题翻译：近场扫描头及其制造方法
公开(公告)号：EP1580738A1
公开(公告)日：2005-09-28
申请号：EP05076261.6
申请日：1999-11-04
申请人： SEIKO INSTRUMENTS INC.
发明人： Kato, Kenji, c/o Seiko Instruments Inc , Niwa, Takashi, c/o Seiko Instruments Inc , Ichihara, Susumu, c/o Seiko Instruments Inc , Chiba, Norio, c/o Seiko Instruments Inc , Oumi, Manabu, c/o Seiko Instruments Inc , Kasama, Nobuyuki, c/o Seiko Instruments Inc , Mitsuoka, Yasuyuki, c/o Seiko Instruments Inc
IPC分类号： G11B7/135 , G11B7/12 , G02B27/56 , G12B21/06 , G02B21/00 , G02B6/12
CPC分类号： G11B7/125 , G01Q80/00 , G02B6/4214 , G11B7/122 , G11B7/124 , G11B7/1362 , G11B7/1387 , G11B7/22 , G11B2007/13727
摘要： A near field optical head includes a planar substrate (2101) provided with an inverted conical or pyramidal hole having an apex made as a very small aperture, an optical waveguide (2103) laid on an opposite surface of the planar substrate to a surface forming the very small aperture and on an inside of the inverted conical or pyramidal hole, and a tip sharpened microscopic protrusion (2102) formed by one part of the optical waveguide and protruding from the very small aperture of the planar substrate.

6. 发明授权

EP0934585B1 DISPOSITIF DE LECTURE OPTIQUE D'INFORMATIONS NUMERIQUES SUR UN SUPPORT, NOTAMMENT DISPOSITIF DE LECTURE DE DISQUE A LECTURE LASER 失效
标题翻译：设备技术的光学读取数字信息在承载装置，尤指用于读取板使用激光
公开(公告)号：EP0934585B1
公开(公告)日：2002-05-15
申请号：EP96939975.7
申请日：1996-11-26
申请人： Andre, Yves-Bernard
发明人： Andre, Yves-Bernard
IPC分类号： G11B7/00 , G11B7/125
CPC分类号： G11B7/125 , G11B7/005
摘要： An optical reader device (1) for reading digital data from a reflective medium (4), including a light source (8), focusing means (10) for focusing the beam transmitted from the source onto an area (S) of the medium, receiving means (R) for receiving the reflected light energy, and processing means (12) for processing the signals from the receiving means. The device (1) comprises at least one second, unfocused lighting means (E) provided on or adjacent to the device for transmitting a beam (F) to illuminate the focusing area (S) of the source (8) on the medium (4), the wavelength and light strength of said second lighting means (E) being selected in such a way that data reproduction is enhanced.

7. 发明授权

EP0472136B1 Laser printer 失效
标题翻译：激光
公开(公告)号：EP0472136B1
公开(公告)日：1997-03-26
申请号：EP91113846.9
申请日：1991-08-19
申请人： HITACHI, LTD.
发明人： Kenichi Iga , Kazuto Senda
IPC分类号： H04N1/024 , G06K15/12 , H01S3/101 , H01S3/19 , G02B26/10
CPC分类号： H01S3/005 , G11B7/125 , H01S5/005 , H01S5/06203 , H01S5/06236 , H01S5/0624 , H01S5/06243 , H01S5/2231

8. 发明公开

EP0613125A3 Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：EP0613125A3
公开(公告)日：1994-11-02
申请号：EP94102918.3
申请日：1994-02-25
申请人： KABUSHIKI KAISHA KENWOOD
发明人： Miyazawa, Hiroshi
IPC分类号： G11B7/135 , G02B1/10
CPC分类号： G02B5/285 , G02B1/115 , G11B7/125 , G11B7/135
摘要： An optical pickup device capable of maintaining a sufficient amount of laser beam light when recording information on an optical disc and stabilizing the light emission of the semiconductor laser when reproducing information. Each optical component constituting an optical system for an optical pickup device used for both information recording and reproducing is formed with an antireflection film whose spectral reflectance changes in accordance with the wavelength of an incident light. And, in a preferable embodiment, the antireflection film, which has a high spectral reflectance at a shorter wavelength λ (L) in the whole range of light emission wavelengths covered by the semiconductor laser light source and a low spectral reflectance at a longer wavelength λ (H), is formed on the incident surface or outgoing surface of at least one optical transparent element (for example, 5). As a result, in recording information on an optical disc wherein a laser beam is emitted at a high output power and at a wavelength λ shifted to a longer peak wavelength λ (H), the transmission coefficient of a laser beam becomes high. Furthermore, in reproducing information wherein a laser beam is emitted at a low output power and at a wavelength λ shifted to a shorter peak wavelength λ (L), the transmission coefficient of a laser beam becomes low, reducing the amount of light returned to the emission surface of the semiconductor laser.
摘要翻译：一种光学拾取装置，当在光盘上记录信息时能够保持足够量的激光束光，并且在再现信息时稳定半导体激光器的光发射。构成用于信息记录和再现两者的光学拾取装置的光学系统的每个光学元件都由防反射膜形成，该防反射膜的光谱反射率根据入射光的波长而变化。并且，在优选的实施方式中，在由半导体激光光源覆盖的整个发光波长范围内，在较短波长λ（L）处具有高光谱反射率并且在较长波长λ下具有低光谱反射率的抗反射膜（H）形成在至少一个光学透明元件（例如5）的入射表面或出射表面上。结果，在以高输出功率发射激光束并且波长λ偏移到较长峰值波长λ（H）的光盘上记录信息时，激光束的透射系数变高。此外，在再现以低输出功率发射激光束并且将波长λ偏移到较短峰值波长λ（L）的信息时，激光束的透射系数变低，从而减少了返回到半导体激光器的发射表面。

9. 发明公开

EP0597202A1 Optical pickup head apparatus 失效
标题翻译： Optischer Abtastkopf。
公开(公告)号：EP0597202A1
公开(公告)日：1994-05-18
申请号：EP93113693.1
申请日：1993-08-26
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Kato, Makoto , Yamamoto, Hiroaki , Nishino, Seij , Kadowaki, Shin-ichi
IPC分类号： G11B7/135 , G11B7/09 , G11B7/125
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/125 , G11B7/131 , G11B7/1367 , G11B11/10545
摘要： 5 n7 An optical pickup head apparatus comprises a first coherent light source for emitting a coherent light serving as a main beam, and a second coherent light source for emitting a coherent light having a polarized plane at a right angle to the polarized plane of the coherent light emitted from the first coherent light source. When the coherent light emitted from the second coherent light source is incident upon a phase plate, the phase plate yields a sub-beam presenting a distribution of light intensity having peak values at at least both sides of the center of the sub-beam on a plane vertical with respect to the optical axis of the coherent light. Focusing means overlaps the main beam emitted from the first coherent light source on the sub-beam emitted from the phase plate, causing the resulting overlapped beam to be focused on the information-recorded surface of an optical disk. When a focused beam as reflected from the information-recorded surface of the optical disk is incident upon polarized beam separating means, the polarized beam separating means yields the transmitted beam as divided into the main beam and the sub-beam. Optical detecting means individually detects and supplies the light intensities of the main beam and the sub-beam emitted from the polarized beam separating means.
摘要翻译：光拾取头装置包括用于发射用作主光束的相干光的第一相干光源和用于发射具有与发射的相干光的偏振平面成直角的偏振面的相干光的第二相干光源从第一个相干光源。当从第二相干光源发射的相干光入射到相位板上时，相位板产生一个子光束，该子光束呈现在至少在子光束中心的两侧上具有峰值的光强分布相对于相干光的光轴垂直。聚焦装置与从相位板发射的子光束上的从第一相干光源发射的主光束重叠，使得所形成的重叠光束聚焦在光盘的信息记录表面上。当从光盘的信息记录表面反射的聚焦光束入射到偏振光束分离装置时，偏振光束分离装置产生被分割成主光束和子光束的透射光束。光检测装置分别检测并提供从偏振光束分离装置发射的主光束和子光束的光强度。

10. 发明授权

EP0267036B1 Waveguide type optical head 失效
标题翻译：光学传感器头波导型。
公开(公告)号：EP0267036B1
公开(公告)日：1994-02-23
申请号：EP87309799.2
申请日：1987-11-05
申请人： SHARP KABUSHIKI KAISHA
发明人： Yamamoto, Osamu , Hayashi, Hiroshi , Miyauchi,Nobuyuki , Maei, Shigeki , Kawanishi,Hidenori
IPC分类号： H01S3/085 , G11B7/125 , G01L1/24 , H01S3/133
CPC分类号： H01S5/141 , G01L1/243 , G11B7/124 , G11B7/125 , H01L2224/45144 , H01L2224/48463 , H01S5/02248 , H01S5/02292 , H01S5/0687 , H01L2924/00

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