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1.发明授权Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus 有权光拾取器，使用其的光学信息记录/再现装置以及在拾取器和装置中使用的相位可变波片公开(公告)号：US07035192B2
公开(公告)日：2006-04-25
申请号：US10873931
申请日：2004-06-22
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1362 , G11B7/1367 , G11B7/1369 , G11B2007/0006
摘要： Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.
摘要翻译： 分别从具有光电检测器的SHG蓝色激光单元和红色半导体激光单元分别发射的激光束通过准直透镜转换为平行光，然后通过电介质多层膜镜耦合，以便在相同的光学 轴。 介电多层膜反射镜被配置为透射波长为500nm或更短的光，并且对于P波和S波都反射波长为500nm或更长的光。 由电介质多层膜镜透射和反射的光通过偏振全息图和相位可变波片，并通过物镜聚焦在光盘上。 以这种方式，即使使用偏振光学检测系统，简单的配置也可以实现与许多类型的光盘的兼容性和稳定的信号检测。
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公开(公告)号：US20050030880A1
公开(公告)日：2005-02-10
申请号：US10873931
申请日：2004-06-22
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1362 , G11B7/1367 , G11B7/1369 , G11B2007/0006
摘要： Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.
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3.发明授权Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus 失效光拾取器，使用其的光学信息记录/再现装置以及在拾取器和装置中使用的相位可变波片公开(公告)号：US06819646B1
公开(公告)日：2004-11-16
申请号：US09484969
申请日：2000-01-18
IPC分类号： G11B700
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1362 , G11B7/1367 , G11B7/1369 , G11B2007/0006
摘要： Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.
摘要翻译： 分别从具有光电检测器的SHG蓝色激光单元和红色半导体激光单元分别发射的激光束通过准直透镜转换为平行光，然后通过电介质多层膜镜耦合，以便在相同的光学 轴。 介电多层膜反射镜被配置为透射波长为500nm或更短的光，并且对于P波和S波都反射波长为500nm或更长的光。 由电介质多层膜镜透射和反射的光通过偏振全息图和相位可变波片，并通过物镜聚焦在光盘上。 以这种方式，即使使用偏振光学检测系统，简单的配置也可以实现与许多类型的光盘的兼容性和稳定的信号检测。
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4.发明授权Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus 有权光拾取器，使用其的光学信息记录/再现装置以及在拾取器和装置中使用的相位可变波片公开(公告)号：US07215476B2
公开(公告)日：2007-05-08
申请号：US10975308
申请日：2004-10-27
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1362 , G11B7/1367 , G11B7/1369 , G11B2007/0006
摘要： Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.
摘要翻译： 分别从具有光电检测器的SHG蓝色激光单元和红色半导体激光单元分别发射的激光束通过准直透镜转换为平行光，然后通过电介质多层膜镜耦合，以便在相同的光学 轴。 介电多层膜反射镜被配置为透射波长为500nm或更短的光，并且对于P波和S波都反射波长为500nm或更长的光。 由电介质多层膜镜透射和反射的光通过偏振全息图和相位可变波片，并通过物镜聚焦在光盘上。 以这种方式，即使使用偏振光学检测系统，简单的配置也可以实现与许多类型的光盘的兼容性和稳定的信号检测。
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5.发明申请Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus 有权光拾取器，使用其的光学信息记录/再现装置以及在拾取器和装置中使用的相位可变波片公开(公告)号：US20050058027A1
公开(公告)日：2005-03-17
申请号：US10975308
申请日：2004-10-27
CPC分类号： G11B7/13925 , G11B7/1275 , G11B7/1362 , G11B7/1367 , G11B7/1369 , G11B2007/0006
摘要： Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical axis. The dielectric multi-layer film mirror is configured so as to transmit light with a wavelength of 500 nm or shorter and reflect light with a wavelength of 500 nm or longer for both P wave and S wave. The lights that are transmitted and reflected by the dielectric multi-layer film mirror pass through a polarizing hologram and a phase variable wave plate and are focused on an optical disk by an objective lens. In this manner, a simple configuration can realize a compatibility with many types of optical disks and a stable signal detection even when using a polarizing optical detection system.
摘要翻译： 分别从具有光电检测器的SHG蓝色激光单元和红色半导体激光单元分别发射的激光束通过准直透镜转换为平行光，然后通过电介质多层膜镜耦合，以便在相同的光学 轴。 介电多层膜反射镜被配置为透射波长为500nm或更短的光，并且对于P波和S波都反射波长为500nm或更长的光。 由电介质多层膜镜透射和反射的光通过偏振全息图和相位可变波片，并通过物镜聚焦在光盘上。 以这种方式，即使使用偏振光学检测系统，简单的配置也可以实现与许多类型的光盘的兼容性和稳定的信号检测。
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公开(公告)号：US20070263678A1
公开(公告)日：2007-11-15
申请号：US10591983
申请日：2005-02-22
IPC分类号： H01S3/10
CPC分类号： G02B1/18 , G02B27/0006 , G11B7/121 , G11B7/1275 , G11B7/1362 , G11B7/1395 , H01S3/005 , H01S3/0092 , H01S3/025 , H01S3/0809 , H01S3/09415 , H01S3/109 , H01S3/2391 , H01S5/005 , H01S5/0092 , H01S5/02212 , H01S5/02296 , H01S5/32341 , H01S5/4031 , H01S5/4087
摘要： An object of the present invention is to provide a coherent light source with limitations on the wavelength of emitted light being relaxed. The coherent light source of the present invention is a coherent light source for simultaneously emitting a first light (3) and a second light (4) having a wavelength shorter than that of the first light (3), including: a light source main body emitting at least the first light (3); a mirror (5) which transmits or reflects the first light (3); and a functional film (6) provided on at least a part of the mirror (5). The functional film (6) has a photocatalytic effect to be induced by the second light (4).
摘要翻译： 本发明的目的是提供一种相干光源，其中放射光的发射波长的限制。 本发明的相干光源是用于同时发射具有比第一光（3）的波长短的波长的第一光（3）和第二光（4）的相干光源，包括：光源主体 发射至少第一光（3）; 发射或反射第一光（3）的反射镜（5）; 以及设置在所述反射镜（5）的至少一部分上的功能膜（6）。 功能膜（6）具有由第二光（4）诱导的光催化效果。
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公开(公告)号：US07010006B2
公开(公告)日：2006-03-07
申请号：US10465948
申请日：2002-06-21
申请人： Ken'ichi Kasazumi , Yasuo Kitaoka , Tosifumi Yokoyama , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hisashi Senga , Shigeru Furumiya , Hiromichi Ishibashi
发明人： Ken'ichi Kasazumi , Yasuo Kitaoka , Tosifumi Yokoyama , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hisashi Senga , Shigeru Furumiya , Hiromichi Ishibashi
CPC分类号： H01S5/0687 , G02F1/37 , H01S5/005 , H01S5/0092 , H01S5/06256 , H01S5/0683
摘要： A light source device can attain a stable output of a harmonic even when there occurs a change in the ambient temperature or fluctuation in the output power. The light source device is provided with a semiconductor laser source (4), an optical waveguide-type QPM-SHG device (5) for generating a second harmonic from light emitted from the semiconductor laser source (4), a wavelength control means (7) for controlling a wavelength of light emitted from the semiconductor laser source (4), a means for slightly fluctuating wavelength (8) for changing a wavelength of light emitted from the semiconductor laser source (4) and a means for detecting a change in output light power of the optical waveguide-type QPM-SHG device (5) that occurs when a wavelength of light emitted from the semiconductor laser source (4) is changed. In this case, a wavelength of light emitted from the semiconductor laser source (4) is controlled to an optimum wavelength of the optical waveguide-type QPM-SHG device (5) based on a change in output light power of the optical waveguide-type QPM-SHG device (5) that occurs when a wavelength of light emitted from the semiconductor laser source (4) is changed.
摘要翻译： 即使发生环境温度的变化或输出功率的波动，光源装置也可以获得稳定的谐波输出。 光源装置设置有半导体激光源（4），用于从半导体激光源（4）发射的光产生二次谐波的光波导型QPM-SHG器件（5），波长控制装置（7） ），用于控制从半导体激光源（4）发射的光的波长，用于稍微波动的用于改变从半导体激光源（4）发射的光的波长的波长（8）的装置和用于检测输出变化的装置 当从半导体激光源（4）发射的光的波长改变时发生的光波导型QPM-SHG器件（5）的光功率变化。 在这种情况下，基于光波导型的输出光功率的变化，从半导体激光源（4）发射的光的波长被控制到光波导型QPM-SHG器件（5）的最佳波长 当从半导体激光源（4）发射的光的波长改变时发生的QPM-SHG器件（5）。
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公开(公告)号：US06958967B2
公开(公告)日：2005-10-25
申请号：US09993198
申请日：2001-11-14
CPC分类号： G11B7/127 , G03H1/22 , G03H1/2286 , G11B7/0065 , G11B7/126 , G11B7/128 , G11B7/131 , G11B7/1374 , G11B7/1381 , G11B7/1398 , G11B2007/13727
摘要： An optical information recording/reproducing device reproduces digital data recorded in a form of interference fringes produced by two coherent beams in a hologram disk, by projecting a coherent beam to the hologram disk and receiving a reproduction signal beam obtained by diffraction by means of a two-dimensional photodetector array. The holographic optical information recording/reproducing device includes a tunable coherent light source that emits the coherent beam, and a control section controls and optimizes a wavelength of the tunable coherent light source according to position information of the reproduction signal beam on the two-dimensional photodetector array. Thus, a holographic optical information recording/reproducing device is provided that is capable of maintaining a sufficient reproduction signal intensity and reproducing signals stably while undergoing a minimum of cross-talk, even in the case where the optimal reproduction wavelength varies due to a variance of media, a change of a temperature of a recording medium, etc.
摘要翻译： 光信息记录/再现装置通过将相干光束投射到全息图盘并且通过二次衍射获得的再现信号光束再现以全息图盘中的两个相干光束产生的干涉条纹形式记录的数字数据 三维光电探测器阵列。 全息光信息记录/再现装置包括发射相干光束的可调谐相干光源，并且控制部分根据二维光电探测器上再现信号光束的位置信息来控制和优化可调谐相干光源的波长 数组。 因此，提供了一种全息光学信息记录/再现装置，其能够在经历最小串扰的情况下稳定地保持足够的再现信号强度和再现信号，即使在最佳再现波长由于 介质，记录介质的温度变化等
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9.发明授权Optical waveguide device, and light source device and optical apparatus including the optical waveguide device 失效光波导器件，以及包括光波导器件的光源器件和光学器件公开(公告)号：US06317546B1
公开(公告)日：2001-11-13
申请号：US09406953
申请日：1999-09-28
IPC分类号： G02B600
CPC分类号： G02B6/42 , G02B6/4207 , G02F1/377 , G11B7/125
摘要： An optical waveguide device includes a dielectric substrate; and an optical waveguide formed in the dielectric substrate, the optical waveguide having a longitudinal axis and an outgoing surface disposed at an angle other than a right angle relative to a plane perpendicular to the longitudinal axis.
摘要翻译： 光波导器件包括电介质基片; 以及形成在所述电介质基板中的光波导，所述光波导具有纵向轴线和出射表面，所述纵向轴线和出射表面相对于垂直于所述纵向轴线的平面以非直角设置。
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公开(公告)号：US07154837B2
公开(公告)日：2006-12-26
申请号：US09870095
申请日：2001-05-30
IPC分类号： G11B7/135
CPC分类号： B82Y10/00 , G02F2203/18 , G11B7/1369 , G11B7/1381
摘要： An optical pickup and an optical information recording/reproducing device are provided, each of which is capable of forming a super-resolution spot to conduct micro-mark recording, and does not undergo signal degradation due to an increased sidelobe in a reproducing operation. A variable phase filter having three regions to produce a phase difference in a radial direction is used, to provide a phase difference of π between the center region and the side regions in a recording operation, so that a super-resolution spot is formed on a recording layer of the optical disk. In a reproducing operation, a phase difference is nullified between the regions of the variable phase filter, so that a normal light spot at a diffraction limit having a smaller sidelobe is formed. The variable phase filter can be formed with a homogeneous-alignment liquid crystal element.
摘要翻译： 提供了一种光学拾取器和光学信息记录/再现装置，每个光学拾取器和光学信息记录/再现装置能够形成超分辨率点以进行微标记记录，并且由于再现操作中的旁瓣增加而不会发生信号劣化。 使用具有在径向上产生相位差的三个区域的可变相位滤波器，以在记录操作中提供中心区域和侧面区域之间的pi的相位差，使得在 记录层的光盘。 在再现操作中，可变相位滤波器的区域之间的相位差无效，从而形成具有较小旁瓣的衍射极限处的正常光斑。 可变相位滤波器可以由均匀取向的液晶元件形成。
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