公开(公告)号：US4672187A

公开(公告)日：1987-06-09

申请号：US787782

申请日：1985-10-15

申请人： Teruo Fujita ,  Keizo Kono ,  Mitsushige Kondo ,  Shinsuke Shikama

发明人： Teruo Fujita ,  Keizo Kono ,  Mitsushige Kondo ,  Shinsuke Shikama

IPC分类号： G02B6/124 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G01J1/20 ,  G01J1/30 ,  H01J3/14

CPC分类号： G11B7/1353 ,  G02B6/124 ,  G11B7/0908 ,  G11B7/0917 ,  G11B7/123

摘要： A focusing error detecting device used in a head assembly for recording information to a recording surface of an optical disc or reading out information already recorded, the focusing error detecting device including a diffraction grating for focusing light which has been introduced from a light source into a thin-film waveguide layer, onto the recording surface, and two light receiving diffraction gratings for conducting the light reflected by the recording surface again into the waveguide layer. The two light receiving diffraction gratings have optical characteristics which differ from each other, depending the position of a focused spot of the light focused on the recording surface by the focusing diffraction grating. Therefore, by comparing the intensity of light from one light receiving diffraction grating with that from the other light receiving diffraction grating, there can be seen a positional relationship between the focused spot and the recording surface.

摘要翻译： 一种聚焦误差检测装置，用于头部组件中，用于向光盘的记录表面记录信息或读出已经记录的信息，该聚焦误差检测装置包括用于将从光源引入的光聚焦到 薄膜波导层和记录表面上的两个光接收衍射光栅，用于将由记录表面反射的光再次导入波导层。 两个光接收衍射光栅具有彼此不同的光学特性，这取决于通过聚焦衍射光栅聚焦在记录表面上的光的聚焦光斑的位置。 因此，通过比较来自一个光接收衍射光栅的光的强度与来自另一个光接收衍射光栅的光的强度，可以看出聚焦点和记录表面之间的位置关系。

公开(公告)号：US4718052A

公开(公告)日：1988-01-05

申请号：US781993

申请日：1985-09-30

申请人： Mitsushige Kondo ,  Shinsuke Shikama ,  Keizo Kono ,  Teruo Fujita

发明人： Mitsushige Kondo ,  Shinsuke Shikama ,  Keizo Kono ,  Teruo Fujita

IPC分类号： G11B7/08 ,  G11B7/09 ,  G11B7/095

CPC分类号： G11B7/0901 ,  G11B7/1245

摘要： An optical head assembly for recording information on an optical disc or for taking out information already recorded, the optical head assembly including a semiconductor substrate and a dielectric light conducting layer formed on the substrate, the light conducting layer being internally formed with optical elements for converging laser beam from a laser beam source onto the optical disc and directing the reflected beam from the optical disc surface toward a photo detector. Output signal from the photo detector is used for reading information and also for allowing the optical head assembly to trace a track on the optical disc.

摘要翻译： 一种用于在光盘上记录信息或用于取出已经记录的信息的光学头组件，所述光学头组件包括半导体衬底和形成在衬底上的电介质光导层，所述导光层内部形成有用于会聚的光学元件 来自激光束源的激光束到光盘上并且将来自光盘表面的反射光束引向光电检测器。 来自光电检测器的输出信号用于读取信息，并且还用于允许光学头组件跟踪光盘上的轨道。

公开(公告)号：US5883681A

公开(公告)日：1999-03-16

申请号：US850548

申请日：1997-05-02

申请人： Keizo Kono ,  Satoru Moriya ,  Tatsumi Takahashi ,  Masao Nozaki

发明人： Keizo Kono ,  Satoru Moriya ,  Tatsumi Takahashi ,  Masao Nozaki

IPC分类号： G03B33/12 ,  G02B27/18 ,  G02F1/13 ,  G03B21/00 ,  H04N9/31 ,  H04N5/74 ,  G02F1/00

CPC分类号： H04N9/3105 ,  H04N9/3164

摘要： The present invention provides a video projector equipped with a projection lens system having only one optical axis for projecting a plurality color images displayed on a plurality of CRTs. The color images displayed on the CRTs 2R, 2B and 2G are respectively focused onto a writing side of respective spatial light modulators 4R, 4G and 4B through a plurality of writing lens 3R, 3G and 3B. On the other hand, a light from a reading light source 5 is divided into 3-color lights of R, G and B by a cross-type 3-color separation member 25. The three color lights are respectively inputted into a reading side of the respective spatial light modulators through a plurality of polarization beam splitter blocks 26R, 26G and 26B each having a pair of dielectric multiple layers 26a, 26b disposed parallel to each other. A plurality of reading light outputted from the spatial light modulators are synthesized and outputted as a composite color light by a cross-type 3-color composition member 28 so as to be projected with a magnification onto a screen by the projection lens system.

摘要翻译： 本发明提供了一种配有投影透镜系统的视频投影仪，该投影透镜系统仅具有一个光轴，用于投影显示在多个CRT上的多个彩色图像。 显示在CRT2R，2B和2G上的彩色图像分别通过多个书写透镜3R，3G和3B聚焦在各个空间光调制器4R，4G和4B的写入侧上。 另一方面，来自读取光源5的光通过交叉型3色分离部件25被分割成R，G，B的3色光。三色光分别输入到 各个空间光调制器通过多个偏振分束器块26R，26G和26B，各自具有彼此平行布置的一对电介质多层26a，26b。 由空间光调制器输出的多个读取光通过交叉型3色组合构件28合成并作为复合色光输出，以便通过投影透镜系统以放大率投影到屏幕上。

公开(公告)号：US4740064A

公开(公告)日：1988-04-26

申请号：US854050

申请日：1986-04-21

申请人： Keizo Kono ,  Tameaki Ebihara ,  Syohei Kawai ,  Yasukazu Tanabe ,  Hiroshi Yoshinari

发明人： Keizo Kono ,  Tameaki Ebihara ,  Syohei Kawai ,  Yasukazu Tanabe ,  Hiroshi Yoshinari

IPC分类号： G02B7/08 ,  G02B7/10 ,  G02B7/28 ,  H04N5/232 ,  G02B7/11 ,  G02B15/14

CPC分类号： G02B7/102 ,  G02B7/282

摘要： A zoom lens apparatus comprises sensors for detecting relative positions of a variable power lens group and a compensating lens group, a memory for pre-storing compensating data peculiar to the zoom lens apparatus, a control circuit and driving parts for moving the variable power lens group and the compensating lens group. The control circuit compares position data set by a variable power setting operation and position data obtained from the sensors and outputs signals for controlling the relative positions of the variable power lens group and the compensating lens group based on the compensating data read out from the memory. The driving parts vary the relative positions of the variable power lens group and the compensating lens group responsive to the output signals of the control circuit.

摘要翻译： 变焦透镜装置包括用于检测可变功率透镜组和补偿透镜组的相对位置的传感器，用于预存储变焦透镜设备特有的补偿数据的存储器，控制电路和用于移动可变功率透镜组的驱动部件 和补偿透镜组。 控制电路将通过可变功率设定操作设定的位置数据和从传感器获得的位置数据进行比较，并输出用于根据从存储器读出的补偿数据来控制可变功率透镜组和补偿透镜组的相对位置的信号。 驱动部件根据控制电路的输出信号改变可变功率透镜组和补偿透镜组的相对位置。

公开(公告)号：US4823187A

公开(公告)日：1989-04-18

申请号：US70429

申请日：1987-07-07

申请人： Mitsuaki Toyama ,  Tameaki Ebihara ,  Syohei Kawai ,  Keizo Kono ,  Nobuo Shimoda

发明人： Mitsuaki Toyama ,  Tameaki Ebihara ,  Syohei Kawai ,  Keizo Kono ,  Nobuo Shimoda

IPC分类号： H04N9/097 ,  H04N9/093 ,  H04N9/09

CPC分类号： H04N9/097

摘要： A three tube type color television camera comprises an optical system using a prism for the three color separation in which an image of a test pattern is introduced into an optical path of the camera through the optical system. The optical system has an incident plane onto which the image of the test pattern is projected by a pattern projector closely located with respect to the incident plane.

摘要翻译： 三管式彩色电视摄像机包括使用三色分离棱镜的光学系统，其中将测试图案的图像通过光学系统引入相机的光路中。 光学系统具有入射平面，测试图案的图像通过相对于入射平面紧密定位的图案投影仪投影到该入射平面上。

公开(公告)号：US4779259A

公开(公告)日：1988-10-18

申请号：US855110

申请日：1986-04-23

申请人： Keizo Kono ,  Mitsushige Kondou ,  Natsuro Tsubouchi ,  Shiro Hine ,  Hiroshi Nishihara ,  Toshiaki Suhara

发明人： Keizo Kono ,  Mitsushige Kondou ,  Natsuro Tsubouchi ,  Shiro Hine ,  Hiroshi Nishihara ,  Toshiaki Suhara

IPC分类号： G11B7/12 ,  G11B7/135 ,  G11B7/00 ,  G11B21/10

CPC分类号： G11B7/1384 ,  G11B7/124 ,  Y10S359/90

摘要： An optical IC-type head assembly for recording and for reading information on an optical disc, comprising a substrate, a light guiding layer comprising a dielectric thin film formed monolithically on the substrate, a laser oscillator for injecting the laser beam into the light guiding layer, a grating coupler for converging the laser beam on the optical disc, and a photo detector for receiving the beam reflected by the optical disc and coming out of the grating coupler. In one embodiment the substrate is made of material having cleavability. One side surface of the light guiding layer receiving the laser beam is a break surface formed by cleaving the substrate along the cleavage plane. The photo detector is disposed at the break surface of the light guiding layer. The substrate is preferably made of single crystal material. In another embodiment, a beam splitter is disposed between the laser oscillator and the grating coupler for splitting the reflected beam coming out of the grating coupler into two symmetrical beams. Each split beam forms an acute angle with respect to the optical axis of the reflected beam. The acute angle is preferably less than 30 degrees. The beam splitter may converge each of the split beams at a photo detecting element disposed between the laser oscillator and the grating coupler.

摘要翻译： 一种用于记录和读取光盘上的信息的光学IC型头组件，包括基底，包括在基底上一体地形成的电介质薄膜的导光层，用于将激光束注入导光层的激光振荡器 ，用于将激光束会聚在光盘上的光栅耦合器，以及用于接收由光盘反射并从光栅耦合器出来的光束的光电检测器。 在一个实施例中，衬底由具有可切割性的材料制成。 接收激光束的导光层的一个侧表面是通过沿着解理面切割基板而形成的断裂面。 光检测器设置在导光层的断裂面处。 衬底优选由单晶材料制成。 在另一个实施例中，分束器设置在激光振荡器和光栅耦合器之间，用于将从光栅耦合器出来的反射光束分成两个对称光束。 每个分割光束相对于反射光束的光轴形成锐角。 锐角优选小于30度。 分束器可以在设置在激光振荡器和光栅耦合器之间的光电检测元件上会聚每个分束。

公开(公告)号：US06542195B1

公开(公告)日：2003-04-01

申请号：US09268938

申请日：1999-03-16

申请人： Shuichi Asahara ,  Keizo Kono

发明人： Shuichi Asahara ,  Keizo Kono

IPC分类号： H04N1120

CPC分类号： H04N7/01

摘要： An invalid frame in 60P images supplied from a 60P camera head is delayed by a single frame by a 1-frame delay circuit. A differential between the delayed invalid frame and the valid frame is computed by a subtracting circuit. Of the differential signal, only a portion over a predetermined value is picked out by a level filter. The picked out signal is attenuated to ½ by a ½ attenuator. By adding that attenuated signal to the valid frame by an adder, the invalid frame is superimposed on that valid frame. As a result, a natural picture is obtained.

摘要翻译： 由60P摄像头提供的60P图像中的无效帧由1帧延迟电路延迟单帧。 延迟无效帧与有效帧之间的差分由减法电路计算。 在差分信号中，仅通过电平滤波器拾取超过预定值的一部分。 拾取信号由1/2衰减器衰减到1/2。 通过加法器将该衰减信号加到有效帧，无效帧叠加在该有效帧上。 结果，获得了自然的图像。

公开(公告)号：US4859033A

公开(公告)日：1989-08-22

申请号：US188210

申请日：1988-04-29

申请人： Keizo Kono ,  Mitsushige Kondou ,  Natsuro Tsubouchi ,  Shiro Hine ,  Hiroshi Nishihara ,  Toshiaki Suhara

发明人： Keizo Kono ,  Mitsushige Kondou ,  Natsuro Tsubouchi ,  Shiro Hine ,  Hiroshi Nishihara ,  Toshiaki Suhara

IPC分类号： G11B7/12 ,  G11B7/135

CPC分类号： G11B7/1384 ,  G11B7/124 ,  Y10S359/90

摘要： An optical IC-type head assembly for recording and for reading information on an optical disc, comprising a substrate, a light guiding layer comprising a dielectric thin film formed monolithically on the substrate, a laser oscillator for injecting the laser beam into the light guiding layer, a grating coupler for converging the laser beam on the optical disc, and a photo detector for receiving the beam reflected by the optical disc and coming out of the grating coupler. In one embodiment the substrate is made of material having cleavability. One side surface of the light guiding layer receiving the laser beam is a break surface formed by cleaving the substrate along the cleavage plane. The photo detector is disposed at the break surface of the light guiding layer. The substrate is preferably made of single crystal material. In another embodiment, a beam splitter is disposed between the laser oscillator and the grating coupler for splitting the reflected beam coming out of the grating coupler into two symmetrical beams. Each split beam forms an acute angle with respect to the optical axis of the reflected beam. The acute angle is preferably less than 30 degrees. The beam splitter may converge each of the split beams at a photo detecting element disposed between the laser oscillator and the grating coupler.

摘要翻译： 一种用于记录和读取光盘上的信息的光学IC型头组件，包括基底，包括在基底上一体地形成的电介质薄膜的导光层，用于将激光束注入导光层的激光振荡器 ，用于将激光束会聚在光盘上的光栅耦合器，以及用于接收由光盘反射并从光栅耦合器出来的光束的光电检测器。 在一个实施例中，衬底由具有可切割性的材料制成。 接收激光束的导光层的一个侧表面是通过沿着解理面切割基板而形成的断裂面。 光检测器设置在导光层的断裂面处。 衬底优选由单晶材料制成。 在另一个实施例中，分束器设置在激光振荡器和光栅耦合器之间，用于将从光栅耦合器出来的反射光束分成两个对称光束。 每个分割光束相对于反射光束的光轴形成锐角。 锐角优选小于30度。 分束器可以在设置在激光振荡器和光栅耦合器之间的光电检测元件上会聚每个分束。