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    • 1. 发明专利
    • Laser/detector device for optical recording capable of adjusting detector position
    • 用于调整检测器位置的光学记录的激光/检测器件
    • JP2005317195A
    • 2005-11-10
    • JP2005128227
    • 2005-04-26
    • Wai-Hon Leeウエイ−ホン リー
    • LEE WAI-HON
    • G11B7/00G11B7/12G11B7/125G11B7/135G11B7/22
    • G11B7/1275G11B7/123G11B7/1353G11B7/22G11B2007/0006
    • PROBLEM TO BE SOLVED: To provide an assembly structure and a method for an integrated laser/detection device having a mirror provided in an angle so as to change the direction of a laser beam to a medium. SOLUTION: A mirror is not fixed on a circuit board with a laser/detector as in the case of the prior art, but it is provided just above the circuit board in a housing. Thereby, by approximating or distancing laterally the circuit board to the mirror during assembling, reflected light is adjusted along a first direction, and this is constituted so as to contact a photodetector. A hologram lens is provided above the mirror, and the hologram lens is rotatable so that the reflected light is adjusted and is applied to a photodetector along a second orthogonal direction. In one embodiment, two laser beams are generated, and two hologram lenses are used so as to separately adjust the two beams. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于集成激光/检测装置的组装结构和方法,其具有以一定角度设置的反射镜,以将激光束的方向改变为介质。 解决方案:在现有技术的情况下,反射镜没有固定在具有激光/检测器的电路板上,而是在电路板的正上方设置在外壳中。 因此,通过在组装期间将电路板横向地近似或间接地连接到反射镜,沿着第一方向调整反射光,并且这被构造成与光电检测器接触。 全息透​​镜设置在反射镜的上方,全息透镜可旋转,使得反射光被调整并且沿第二正交方向施加到光电检测器。 在一个实施例中,产生两个激光束,并且使用两个全息透镜以分开调节两个光束。 版权所有(C)2006,JPO&NCIPI
    • 2. 发明专利
    • Optical type position encoder device
    • 光学型位置编码器装置
    • JP2005265855A
    • 2005-09-29
    • JP2005116251
    • 2005-03-16
    • Wai-Hon Leeウエイ−ホン リー
    • LEE WAI-HON
    • G01D5/36G01D5/347G01D5/38G01D5/34
    • G01D5/38G01D5/34715
    • PROBLEM TO BE SOLVED: To provide an optical type encoder device capable of reading a moving grating, for example, a CD, using a hologram or other grating.
      SOLUTION: This optical device has the moving reflective grating, and a light source arranged opposedly to a prescribed side of the grating. The optical device has the first reference grating (fixed grating) arranged between the light source and the moving grating, a detector arranged opposedly to a prescribed side of the first grating, and the second reference grating (fixed grating) arranged between the detector and the moving grating. The moving grating, the first reference grating and the light source are constituted to be movable each other.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够使用全息图或其他光栅读取移动光栅例如CD的光学型编码器装置。 解决方案:该光学器件具有移动反射光栅和与光栅的规定侧相对布置的光源。 光学装置具有布置在光源和移动光栅之间的第一参考光栅(固定光栅),与第一光栅的规定侧相对配置的检测器和布置在检测器和第二光栅之间的第二参考光栅(固定光栅) 移动光栅。 移动光栅,第一参考光栅和光源被构造成彼此可移动。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明授权
    • Optical track sensing device
    • 光学轨道传感装置
    • US5991249A
    • 1999-11-23
    • US902398
    • 1997-07-29
    • Wai-Hon Lee
    • Wai-Hon Lee
    • G11B21/10G11B7/09G11B7/125G11B7/13G11B21/08G11B7/00
    • G11B21/083
    • An optical sensor consisting of a nearly monochromatic point source such as a light emitting diode (LED) or a vertical cavity surface emitting laser (VCSEL) which is mounted on a multiple element detector. When this sensor is placed near a moving object with a reflective periodic pattern on its surface (such as an optical disk), it can produce a signal which can be used to control the position of the object. Unlike other sensors which often use lenses to project the light emitted by the light source onto the object and collect the light reflected from the object and project them onto a photodector, this new sensor performs the tasks of object illumination and light collection without the use of any optical component. A self-imaging principle is used by placing the detector on the self-imaging plare of the object to detect the motion of the object. In order to detect the periodic signal in the self-image of the periodic object, the detector element is covered with a grating structure having the same period or two times the period of the object.
    • 由诸如发光二极管(LED)或垂直腔表面发射激光器(VCSEL)的近似单色点源组成的光学传感器,其安装在多元件检测器上。 当该传感器放置在其表面上具有反射周期性图案(例如光盘)的移动物体附近时,其可以产生可用于控制物体位置的信号。 与其他经常使用透镜将光源发射的光投射到物体上并收集从物体反射的光并将其投射到光电二极管上的其他传感器不同,这种新型传感器执行物体照明和光采集的任务,而不使用 任何光学元件。 使用自我成像原理,将检测器放置在物体的自成像检测器上,以检测物体的运动。 为了检测周期性物体的自身图像中的周期性信号,检测器元件被覆盖有与物体的周期相同或两倍的光栅结构。
    • 6. 发明授权
    • Tracking and focus actuator for a holographic optical head
    • 全息光学头的跟踪和聚焦执行器
    • US5001694A
    • 1991-03-19
    • US209148
    • 1988-06-17
    • Wai-Hon LeeDavid I. Cullumber
    • Wai-Hon LeeDavid I. Cullumber
    • G11B7/09G11B7/12G11B7/135G11B11/105G11B7/00
    • G11B11/10532G11B7/093G11B7/12G11B7/123G11B7/1353
    • An actuator for an objective lens in an optical head which provides a compact structure that does not move the laser beam relative to the objective lens in the tracking mode. The low profile optical head design is accomplished by designing the optical beam path in the same space occupied by the tracking and focusing motor. A mirror reflects a laser beam from a laser at an angle to an objective lens. The objective lens and the mirror are coupled together in a manner allowing movement of the objective lens relative to the mirror along the path of a laser beam from the mirror to the objective lens. The objective lens, mirror and the coupling mechanism are all moved along the path of the laser beam between laser and the mirror for tracking control. Because the mirror moves with the objective lens, there is no beam clipping or beam distortion. For focusing, the objective lens is moved relative to the mirror. The laser, the detector and their associated optics are stationary, with only the mirror and objective lens being moved, thus limiting the mass moved and the power requirements. The simple structure eliminates the need for a fiber optic cable.
    • 一种用于光学头中的物镜的致动器,其提供在跟踪模式下不相对于物镜移动激光束的紧凑结构。 通过在跟踪和聚焦电机占据的相同空间中设计光束路径来实现低轮廓光学头设计。 反射镜将来自激光器的激光束以与物镜成角度的方式反射。 物镜和反射镜以允许物镜相对于反射镜沿着激光束从镜子到物镜的路径移动的方式耦合在一起。 物镜,镜子和耦合机构都沿激光束与激光束之间的路径移动,用于跟踪控制。 因为镜子随着物镜移动,所以没有光束剪切或光束失真。 对于聚焦,物镜相对于镜子移动。 激光器,检测器及其相关光学器件是静止的,只有镜子和物镜被移动,从而限制质量移动和功率需求。 简单的结构消除了对光缆的需要。
    • 8. 发明授权
    • Hybrid surface emitting laser and detector
    • 混合表面发射激光和检测器
    • US4906839A
    • 1990-03-06
    • US213647
    • 1988-06-30
    • Wai-Hon Lee
    • Wai-Hon Lee
    • G11B11/10G11B7/12G11B7/125G11B11/105H01L33/00H01S5/00H01S5/022H01S5/026H01S5/18
    • H01S5/02248G11B7/124G11B7/127H01S5/02212H01S5/02292H01S5/0683
    • The present invention is a combined surface emitting semiconductor laser and photodetector in a single housing with the photodetector positioned to detect light emitted from the surface emitting laser and reflected off of a medium. The surface emitting laser is mounted on the top surface of a chip which includes at least one set of two photodetectors for detecting a reflected beam. At least two photodetectors are used so that spacial variations in the reflected beam can be detected for focusing and tracking when the device is used in an optical head. Photodetectors are arranged to intersect a diffracted beam from a hologram lens used in an optical head. A rear emission photodetector for monitoring the power of the surface emitting laser is positioned so that it will not receive diffracted light which will interfere with its operation.
    • 本发明是单个外壳中的组合表面发射半导体激光器和光电检测器,其中光电检测器定位成检测从表面发射激光器发出的光并从介质反射。 表面发射激光器安装在芯片的顶表面上,该芯片包括用于检测反射光束的至少一组两个光电检测器。 使用至少两个光电检测器,使得当将该装置用于光学头时,可以检测反射光束中的空间变化以进行聚焦和跟踪。 光检测器布置成与来自用于光学头的全息透镜的衍射光束相交。 用于监测表面发射激光器的功率的后发射光电检测器被定位成使得其不会接收会干扰其操作的衍射光。