公开(公告)号：US5768031A

公开(公告)日：1998-06-16

申请号：US712850

申请日：1996-09-12

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G11B7/08 ,  G02B3/00 ,  G02B3/10 ,  G11B7/00 ,  G11B7/135 ,  G02B3/08 ,  G02B3/02

CPC分类号： G02B3/10 ,  G02B3/00 ,  G11B7/1374 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective lens having a first surface and a second surface, includes a first face formed on the first surface, a second face formed on the second surface, and a third face formed on one of the first and second surfaces. The first, second, and third faces are adapted in such a way that the objective lens has at least two focal lengths.

摘要翻译： 具有第一表面和第二表面的物镜包括形成在第一表面上的第一表面，形成在第二表面上的第二表面和形成在第一表面和第二表面之一上的第三表面。 第一，第二和第三面被适配成使得物镜具有至少两个焦距。

公开(公告)号：US5140343A

公开(公告)日：1992-08-18

申请号：US514211

申请日：1990-04-25

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G03G15/04 ,  B41J2/435 ,  B41J2/44 ,  B41J2/455 ,  G03G15/22 ,  G06K15/00 ,  H04N1/04 ,  H04N1/113 ,  H04N1/12

CPC分类号： H04N1/1265 ,  G03G15/221 ,  G06K15/00 ,  H04N1/0461 ,  H04N1/12 ,  G03G15/0435 ,  G06K2215/0082 ,  H04N1/0464

摘要： A compositive functional laser printer which is made not only to form a picture on a photo-sensitive drum but also to read out a manuscript by scanning laser beam by using a hologram disk. The laser printer comprises a laser beam generator, a beam splitting unit, a beam diffractive scanning unit, a picture forming signal control unit, a manuscript reading signal control unit, and a signal detecting and storing unit, so that a picture is formed on the photo-sensitive drum, as well as the content of manuscript can be read. According to the invention, since printing function as well as manuscript reading function can be carried out, functions of duplicator, facsimile and laser printer can be carried out by one instrument, therefore the low cost of optical unit can be obtained and the product can be miniaturized.

摘要翻译： 一种复合功能激光打印机，其不仅在感光鼓上形成图像，而且还通过使用全息图盘扫描激光束来读出原稿。 激光打印机包括激光束发生器，分束单元，光束衍射扫描单元，图像形成信号控制单元，原稿读取信号控制单元和信号检测和存储单元，从而在 感光鼓，以及手稿的内容都可以阅读。 根据本发明，由于可以进行打印功能以及原稿读取功能，所以可以通过一台仪器实现复印机，传真机和激光打印机的功能，因此可以获得光学单元的低成本，并且产品可以 小型化。

公开(公告)号：US4979123A

公开(公告)日：1990-12-18

申请号：US199765

申请日：1988-05-27

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G01N21/62 ,  G01J1/44 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/443 ,  G01N21/67

CPC分类号： G01J3/06 ,  G01J3/28 ,  G01J3/36 ,  G01N21/67 ,  G01J2001/446 ,  G01J2003/2866 ,  G01J2003/2893

摘要： An apparatus for determining concentrations of mineral elements comprising an improved spectrometer wherein the spectrometer functions to diffract the light to be measured by means of a rotary grating and to determine the strength of light by using a single PM tube and further detects the wavelength of the diffracted light, by using a laser beam generator, reflective mirrors, photo diodes so as to analyze the composition and the concentration of mineral elements.

摘要翻译： 一种用于确定矿物元素浓度的装置，包括改进的光谱仪，其中光谱仪用于通过旋转光栅衍射待测量的光并通过使用单个PM管确定光的强度，并进一步检测衍射的波长 光，通过使用激光束发生器，反射镜，光电二极管，以分析矿物元素的组成和浓度。

公开(公告)号：US5493425A

公开(公告)日：1996-02-20

申请号：US143145

申请日：1993-10-29

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G11B7/135 ,  G02B5/32 ,  G11B7/00

CPC分类号： G11B7/135

摘要： An optical pickup system using a holographic optical element for achieving miniaturization and lightness. This optical pickup system comprises a semiconductor laser for generating a laser beam, an objective lens for focusing the laser beam emitted from the semiconductor laser on an optical disk, a quadrant hologram for diffracting and condensing the laser beam, reflected by the optical disc and transmitted through the objective lens, to a quadrant photo detector, and the quadrant photo detector detecting the laser beam, diffracted and condensed by the quadrant hologram, and reading data recorded on the optical disc. The quadrant hologram and the quadrant photo detector are arranged in such a manner that the optical paths of the first to fourth hologram members of the quadrant hologram pass through the centers of the first, third, second and fourth photo detecting members of the quadrant photo detector, respectively. The laser beam is condensed by the first hologram member after passing through the first photo detecting member, condensed by the second hologram member before passing through the third photo detecting member, condensed by the third hologram member before passing through the second photo detecting member, and condensed by the fourth hologram member after passing through the fourth photo detecting member.

摘要翻译： 一种使用全息光学元件实现小型化和轻量化的光学拾取系统。 该光拾取系统包括用于产生激光束的半导体激光器，用于将从半导体激光器发射的激光束聚焦在光盘上的物镜，用于衍射和冷凝激光束的象限全息图，由光盘反射并透射 通过物镜到象限光检测器，以及象限光检测器检测激光束，由象限全息图进行衍射和聚光，以及读取记录在光盘上的数据。 象限全息图和象限光电检测器以象限全息图的第一至第四全息元件的光路通过象限光检测器的第一，第三，第二和第四光检测元件的中心 ， 分别。 激光束在通过第一光检测元件之后被第一全息元件冷凝，在通过第三光检测元件之前被第二全息元件冷凝，在通过第二光检测元件之前由第三全息元件会聚， 在通过第四光检测部件之后，第四全息部件会聚。

公开(公告)号：US4978202A

公开(公告)日：1990-12-18

申请号：US351049

申请日：1989-05-12

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G02B26/10 ,  H04N13/00

CPC分类号： H04N13/0422 ,  G02B26/101 ,  H04N13/0434 ,  H04N13/0459

摘要： A laser scanning system includes a read light emitting member, a green light emitting member, a blue emitting member, a scanning light member, and a controller. The red, green and blue emitting light members include an optical-frequency modulator and a liquid crystal plate placed between polarized light plates. The polarized light plates are disposed at an angle equal in the polarized light direction. This enables the viewer to use polarized glasses to view a three-dimensional color image on screen produced by the laser scanning system.

摘要翻译： 激光扫描系统包括读取发光部件，绿色发光部件，蓝色发光部件，扫描光部件和控制器。 红色，绿色和蓝色发光元件包括放置在偏振光板之间的光频调制器和液晶板。 偏振光板以与偏振光方向相等的角度配置。 这使得观看者能够使用偏振眼镜来观看由激光扫描系统产生的屏幕上的三维彩色图像。

公开(公告)号：US5274478A

公开(公告)日：1993-12-28

申请号：US753033

申请日：1991-08-30

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G02B5/32 ,  G03H1/26

CPC分类号： G02B5/32

摘要： A displayer for use in a computer comprising a main body, a CRT mounted in the main body and generating an image in an electromagnetic beam, a pair of holograms for projecting the image from the CRT, the holograms mounted in the main body, and a screen for displaying the image projected by the holograms thereon, the screen mounted at a position at which the image is last projected by the holograms. The present invention provides a displayer which provides advantages in that the harmful electromagnetic waves generated from the CRT does not affect the operator by virtue of the holograms, and a screen of a desired large size is obtained at lower cost.

摘要翻译： 一种用于计算机的显示器，包括主体，安装在主体中并产生电磁束中的图像的CRT，用于投影来自CRT的图像的一对全息图，安装在主体中的全息图，以及 屏幕，用于显示由其上的全息图投射的图像，屏幕安装在图像最后由全息图投射的位置。 本发明提供一种显示器，其具有以下优点：由CRT产生的有害的电磁波不会因全息图而影响操作者，并以较低的成本获得所需大尺寸的屏幕。

公开(公告)号：US5189482A

公开(公告)日：1993-02-23

申请号：US704228

申请日：1991-05-22

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： A61B5/117 ,  G02B5/32 ,  G02B27/00 ,  G06K9/00 ,  G06T1/00

CPC分类号： G06K9/00046

摘要： An optical apparatus for a fingerprint recognition system utilizes a light source for emitting a spherical beam. A collimating hologram produces a plane beam upon receiving the emitted spherical beam from the light source. A diffuser generates a scattered beam by scattering the plane beam. A prism absorbs the light at ridges of a subject fingerprint and reflects the light at valleys of the subject fingerprint. An image producing hologram then processes the reflected spherical beam from the prism corresponding to the valleys and condenses the spherical beam upon an area CCD. The area CCD converts the produced fingerprint image into an electric signal. The fingerprint image producing hologram and a cutoff/absorption plate for cutting off and absorbing the beam are, respectively, mounted on a vertical surface of the prism.

公开(公告)号：US4999482A

公开(公告)日：1991-03-12

申请号：US355346

申请日：1989-05-23

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G02B26/10 ,  G06K7/10 ,  G06K7/12

CPC分类号： G06K7/10871 ,  G06K7/10663

摘要： An optical scanning system of a bar code reader utilizing a hologram scanner in which a laser beam from a laser beam generator is divided into three parallel paths by three beam splitters. The beams pass through three focusing lenses and first reflectors. Each of the beams are focused into three holes in second reflectors before being directed in a perpendicular to a hologram disk. The hologram disk deflects the laser beams outwardly before being reflected again by third reflectors. These beams from the third reflectors are used for scanning an article having a bar code with star-shaped pattern beam through a window formed in a housing. The beams are reflected and contain bar code information. The reflected beams are passed back through the window and are reflected by the third reflectors respectively before passing through a hologram disk and being focused and reflected again at the second reflectors. The beams then pass through three pin holes, so that they are detected by photo-detectors.

摘要翻译： 一种利用全息扫描仪的条形码读取器的光学扫描系统，其中来自激光束发生器的激光束由三个分束器分成三个平行路径。 光束通过三个聚焦透镜和第一反射器。 每个光束在被引导到与全息图盘的垂直线之前被聚焦在第二反射器中的三个孔中。 全息图盘在被第三反射器再次反射之前向外偏转激光束。 来自第三反射器的这些光束用于通过形成在壳体中的窗口扫描具有星形图案光束的条形码的物品。 光束被反射并包含条形码信息。 反射光束通过窗口传回，并在通过全息光盘之前分别被第三反射器反射，并被再次聚焦并在第二反射器处反射。 光束然后通过三个针孔，以便它们被光电检测器检测。

公开(公告)号：US5638352A

公开(公告)日：1997-06-10

申请号：US425067

申请日：1995-04-19

申请人： Keun Y. Yang

发明人： Keun Y. Yang

IPC分类号： G02B5/32 ,  G11B7/09 ,  G11B7/095 ,  G11B7/13 ,  G11B7/135

CPC分类号： G11B7/0912 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/0956

摘要： An optical pickup device using hologram optical elements, the pickup device including a laser diode and, a hologram glass plate diffracting a laser beam emitted from the laser diode and dividing and condensing the laser beam reflected by an optical disc. The hologram glass plate is arranged at the front of the laser source while being spaced apart from the laser diode by a predetermined distance and is provided with four holograms. A collimator is arranged at the front of the hologram glass plate and changes the laser beam emitted from the laser source as well as the laser beam reflected by the optical disc into a parallel beam. An objective lens focuses the parallel laser beam from the collimator on the optical disc. A pair of focusing photo detectors and a pair of tracking photo detectors are also provided at the front of the laser diode and detect the laser beams diffracted and condensed by the holograms of the hologram glass plate in the form of data reading signals. In order to compensate a focusing error and a tracking error, an error compensating actuator is arranged at a side of the objective lens and moves the objective lens in accordance with error signals detected by the focusing and tracking photo detectors.

摘要翻译： 使用全息光学元件的光学拾取装置，拾取装置包括激光二极管，以及衍射从激光二极管发射的激光束并分割和聚光由光盘反射的激光束的全息玻璃板。 全息玻璃板被布置在激光源的前面，同时与激光二极管隔开预定的距离并且设置有四个全息图。 准直仪布置在全息玻璃板的前部，并将从激光源发射的激光束以及由光盘反射的激光束变成平行光束。 物镜将来自准直仪的平行激光束聚焦在光盘上。 在激光二极管的前面还设置一对聚焦光电检测器和一对跟踪光电检测器，并且以数据读取信号的形式检测由全息玻璃板的全息图衍射和聚光的激光束。 为了补偿聚焦误差和跟踪误差，误差补偿致动器布置在物镜的一侧，并根据由聚焦和跟踪光电检测器检测到的误差信号移动物镜。

公开(公告)号：US5483509A

公开(公告)日：1996-01-09

申请号：US274527

申请日：1994-07-13

申请人： Keun Y. Yang ,  Eun J. Kim

发明人： Keun Y. Yang ,  Eun J. Kim

IPC分类号： G11B11/10 ,  G11B7/09 ,  G11B7/135 ,  G11B11/105 ,  G11B7/095

CPC分类号： G11B7/0912 ,  G11B11/10545 ,  G11B11/10576 ,  G11B7/0901

摘要： An optical pick-up device capable of accurately detecting focus errors, tracking errors, magneto-optic signals and pit signals recorded on an optical disc by use of a dichotomous hologram and decreasing the number of optical elements used, thereby achieving a lightness and an improvement in reading rate. The optical pick-up device includes a laser transmission and receipt error detecting unit for detecting an error present at the optical disc, based on size of reproduced beams corresponding to a part of P-wave components of beams reflected depending on optical information recorded on the optical disc, a polarized-beam splitting unit for reflecting all of beams emerging from the collimator lens while being S-polarized and a part of beams emerging from the collimator lens while being P-polarized, and transmitting the remaining part of the P-polarized beams to focus them onto the optical disc via information record/reproduction processing unit, the polarized-beam splitting unit also serving to transmit and reflect beams reflected by the optical disc, and an optical information reading unit for reading the information recorded on the optical disc, based on signals respectively indicative of the sum of and the difference between all the S-wave components and the part of P-wave components of the beams received from the polarized-beam splitting unit.

摘要翻译： 一种能够通过使用二分全息图精确地检测记录在光盘上的聚焦误差，跟踪误差，磁光信号和凹坑信号的光学拾取装置，并减少所使用的光学元件的数量，从而实现亮度和改进 在阅读率。 光学拾取装置包括：激光发射和接收错误检测单元，用于根据与根据记录在光盘上的光信息反射的光束的一部分波分量相对应的再现光束的大小检测光盘上存在的误差 光盘，偏振光束分离单元，用于反射从准直透镜出射的所有光束，同时是S偏振光;以及一部分光束从准直透镜同时被P偏振，并传输剩余部分的P偏振光 光束通过信息记录/再现处理单元将它们聚焦到光盘上，偏振光束分离单元也用于透射和反射由光盘反射的光束;以及光学信息读取单元，用于读取记录在光盘上的信息 基于分别表示所有S波分量和P波分量的一部分的和之和的差的信号 从偏振光束分离单元接收的光束。