公开(公告)号：US08820943B2

公开(公告)日：2014-09-02

申请号：US12391718

申请日：2009-02-24

申请人： Takayuki Matsubara ,  Masatoshi Yonekubo ,  Hidefumi Sakata

发明人： Takayuki Matsubara ,  Masatoshi Yonekubo ,  Hidefumi Sakata

IPC分类号： G03B21/28

CPC分类号： G03B21/28

摘要： A projection apparatus includes a first optical system, an aperture disposed on the light exiting-side of the first optical system, a second optical system disposed on the light exiting-side of the aperture, and a reflector disposed on the optical path between the first optical system and the second optical system, the reflector having a reflection surface that reflects the light having exited from the first optical system toward the second optical system. The optical axis of the second optical system is disposed along the optical axis of the first optical system. The reflection surface of the reflector is disposed along the optical axis of the first optical system. At least part of the first and second optical systems that is on the side opposite the reflection surface of the reflector is cut off.

摘要翻译： 投影装置包括第一光学系统，设置在第一光学系统的光出射侧的孔，设置在孔的出射光侧的第二光学系统，以及设置在第一光学系统之间的光路上的反射器 光学系统和第二光学系统，反射器具有将从第一光学系统退出的光朝向第二光学系统反射的反射表面。 第二光学系统的光轴沿第一光学系统的光轴设置。 反射器的反射面设置在第一光学系统的光轴上。 第一和第二光学系统的与反射器的反射面相反的一侧的至少一部分被切断。

公开(公告)号：US20090244498A1

公开(公告)日：2009-10-01

申请号：US12391718

申请日：2009-02-24

申请人： Takayuki Matsubara ,  Masatoshi Yonekubo ,  Hidefumi Sakata

发明人： Takayuki Matsubara ,  Masatoshi Yonekubo ,  Hidefumi Sakata

IPC分类号： G03B21/28 ,  G02B17/08

CPC分类号： G03B21/28

摘要： A projection apparatus includes a first optical system, an aperture disposed on the light exiting-side of the first optical system, a second optical system disposed on the light exiting-side of the aperture, and a reflector disposed on the optical path between the first optical system and the second optical system, the reflector having a reflection surface that reflects the light having exited from the first optical system toward the second optical system. The optical axis of the second optical system is disposed along the optical axis of the first optical system. The reflection surface of the reflector is disposed along the optical axis of the first optical system. At least part of the first and second optical systems that is on the side opposite the reflection surface of the reflector is cut off.

摘要翻译： 投影装置包括第一光学系统，设置在第一光学系统的光出射侧的孔，设置在孔的出射光侧的第二光学系统，以及设置在第一光学系统之间的光路上的反射器 光学系统和第二光学系统，反射器具有将从第一光学系统退出的光朝向第二光学系统反射的反射表面。 第二光学系统的光轴沿第一光学系统的光轴设置。 反射器的反射面设置在第一光学系统的光轴上。 第一和第二光学系统的与反射器的反射面相反的一侧的至少一部分被切断。

公开(公告)号：US5436876A

公开(公告)日：1995-07-25

申请号：US162902

申请日：1993-12-08

申请人： Osamu Yokoyama ,  Masatoshi Yonekubo ,  Hideaki Iwano ,  Hidefumi Sakata ,  Takashi Takeda ,  Tetsuya Seki ,  Shigeru Kogure

发明人： Osamu Yokoyama ,  Masatoshi Yonekubo ,  Hideaki Iwano ,  Hidefumi Sakata ,  Takashi Takeda ,  Tetsuya Seki ,  Shigeru Kogure

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B11/10 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/131 ,  G11B7/0912 ,  G11B7/0943 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/1381

摘要： A small and inexpensive optical head for detecting a recorded signal, a focusing error signal and a tracking error signal, and an optical memory device utilizing the optical head. A diffraction device (103) is provided having two chirped grating regions (103A, 103B) for dividing a light beam from an optical recording medium (105) and directing the divided beams toward four band-shaped photoelectric transducers (106) and an astigmatism generator formed by the diffraction device (103) and a positive lens (102). The four photoelectric transducers are positioned in a plane inclined with respect to the optical axis of zero-order diffraction light, and the longitudinal axes of each of the band-shaped photoelectric transducers are radially arranged relative to the optical axis.

摘要翻译： 用于检测记录信号的小而廉价的光学头，聚焦误差信号和跟踪误差信号，以及利用光学头的光学存储器件。 衍射装置（103）具有两个用于分割来自光记录介质（105）的光束的啁啾光栅区域（103A，103B），并将分束光束引向四个带状光电变换器（106）和像散发生器 由衍射装置（103）和正透镜（102）形成。 四个光电传感器位于相对于零级衍射光的光轴倾斜的平面中，并且每个带状光电变换器的纵轴相对于光轴径向布置。

公开(公告)号：US20050248733A1

公开(公告)日：2005-11-10

申请号：US11114136

申请日：2005-04-26

申请人： Hidefumi Sakata ,  Masatoshi Yonekubo

发明人： Hidefumi Sakata ,  Masatoshi Yonekubo

IPC分类号： G02F1/133 ,  G03B21/00 ,  G03B21/14 ,  G03B21/20 ,  G09G3/20 ,  G09G3/34 ,  G09G3/36 ,  H04N5/74 ,  H04N9/31 ,  G03B21/26

CPC分类号： G03B21/2013 ,  G03B21/2033 ,  G03B21/2053 ,  H04N9/3117 ,  H04N9/312 ,  H04N9/315 ,  H04N9/3155 ,  H04N9/3164

摘要： Aspects of the invention can provide a light source that can reduce the optical system in size while enlarging a color reproducible range and achieving higher luminance. The system can include a cross dichroic prism to combine an R light, a G1 light, a G2 light, and a B light, and an LED R to generate the R light, an LED G1 to generate the G1 light, an LED G2 to generate the G2 light, and an LED B, disposed near the LED G2 to be side by side, to generate the B light, as well as a control portion to drive these LED R, LED G1, LED G2, and LED B under control. The peak wavelengths of the G2 light and the B light are adjacent to each other, and the control portion can drive the LED G2 and the LED B under its control by switching in time division.

摘要翻译： 本发明的方面可以提供可以在扩大颜色可再现范围并实现更高亮度的同时减小光学系统的光源。 该系统可以包括用于组合R光，G 1光，G 2光和B光的交叉二向色棱镜和LED R，以产生 R灯，LED G 1，以产生G 1灯，用于产生G 2 2 的LED G 2 并且配置在LED G 2 2附近的LED B以产生B光，以及驱动这些LED R的控制部分，LED G < 1 ，LED G 2 2和LED B被控制。 G 2＆lt; 2＆gt;光和B光的峰值波长彼此相邻，并且控制部分可以驱动LED G 2和LED B在其控制下由 切换时分。

公开(公告)号：US07576313B2

公开(公告)日：2009-08-18

申请号：US11288385

申请日：2005-11-29

申请人： Hidefumi Sakata ,  Takashi Takeda ,  Masatoshi Yonekubo ,  Susumu Aruga

发明人： Hidefumi Sakata ,  Takashi Takeda ,  Masatoshi Yonekubo ,  Susumu Aruga

IPC分类号： G02F1/01 ,  G03B21/14 ,  G02B5/30 ,  F21V9/14

CPC分类号： G03B21/2073 ,  G03B33/12 ,  H04N9/315

摘要： A light source device includes at least two light emitting parts which emit light; and a polarization separating part which transmits polarized light in a first vibrating direction of the lights from the light emitting part, and reflects polarized light in a second vibrating direction nearly orthogonal to the first vibrating direction, thereby to separate the lights from the light emitting part into the polarized light in the first vibrating direction and the polarized light in the second vibrating direction. Herein, the light emitting part includes a reflection part which reflects light that travels toward the light emitting part from the polarization separating part, in the direction of the polarization separating part. The polarization separating part synthesizes the polarized light in the first vibrating direction that has passed through the polarization separating part, and the polarized light in the second vibrating direction that has reflected on the polarization separating part, thereby to cause the synthesized light to travel in a predetermined direction.

摘要翻译： 光源装置包括发光的至少两个发光部分; 以及偏振分离部，其在来自发光部的光的第一振动方向上透射偏振光，并且在与第一振动方向大致正交的第二振动方向上反射偏振光，从而将来自发光部的光分离 进入第一振动方向的偏振光和第二振动方向的偏振光。 这里，发光部包括在偏振分离部的方向上反射从偏光分离部朝向发光部行进的光的反射部。 偏光分离部合成在偏振光分离部的第一振动方向的偏振光和偏振分离部反射的第二振动方向的偏振光，从而使合成光在 预定方向。

公开(公告)号：US20060114664A1

公开(公告)日：2006-06-01

申请号：US11288385

申请日：2005-11-29

申请人： Hidefumi Sakata ,  Takashi Takeda ,  Masatoshi Yonekubo ,  Susumu Aruga

发明人： Hidefumi Sakata ,  Takashi Takeda ,  Masatoshi Yonekubo ,  Susumu Aruga

IPC分类号： F21V9/14

CPC分类号： G03B21/2073 ,  G03B33/12 ,  H04N9/315

摘要： A light source device includes at least two light emitting parts which emit light; and a polarization separating part which transmits polarized light in a first vibrating direction of the lights from the light emitting part, and reflects polarized light in a second vibrating direction nearly orthogonal to the first vibrating direction, thereby to separate the lights from the light emitting part into the polarized light in the first vibrating direction and the polarized light in the second vibrating direction. Herein, the light emitting part includes a reflection part which reflects light that travels toward the light emitting part from the polarization separating part, in the direction of the polarization separating part. The polarization separating part synthesizes the polarized light in the first vibrating direction that has passed through the polarization separating part, and the polarized light in the second vibrating direction that has reflected on the polarization separating part, thereby to cause the synthesized light to travel in a predetermined direction.

公开(公告)号：US07293880B2

公开(公告)日：2007-11-13

申请号：US11114136

申请日：2005-04-26

申请人： Hidefumi Sakata ,  Masatoshi Yonekubo

发明人： Hidefumi Sakata ,  Masatoshi Yonekubo

IPC分类号： G03B21/26 ,  G03B21/00 ,  G02F1/1335 ,  G02F1/00 ,  H04N5/70

CPC分类号： G03B21/2013 ,  G03B21/2033 ,  G03B21/2053 ,  H04N9/3117 ,  H04N9/312 ,  H04N9/315 ,  H04N9/3155 ,  H04N9/3164

摘要： Aspects of the invention can provide a light source that can reduce the optical system in size while enlarging a color reproducible range and achieving higher luminance. The system can include a cross dichroic prism to combine an R light, a G1 light, a G2 light, and a B light, and an LED R to generate the R light, an LED G1 to generate the G1 light, an LED G2 to generate the G2 light, and an LED B, disposed near the LED G2 to be side by side, to generate the B light, as well as a control portion to drive these LED R, LED G1, LED G2, and LED B under control. The peak wavelengths of the G2 light and the B light are adjacent to each other, and the control portion can drive the LED G2 and the LED B under its control by switching in time division.

摘要翻译： 本发明的方面可以提供可以在扩大颜色可再现范围并实现更高亮度的同时减小光学系统的光源。 该系统可以包括用于组合R光，G 1光，G 2光和B光的交叉二向色棱镜和LED R，以产生 R灯，LED G 1，以产生G 1灯，用于产生G 2 2 的LED G 2 并且配置在LED G 2 2附近的LED B以产生B光，以及驱动这些LED R的控制部分，LED G < 1 ，LED G 2 2和LED B被控制。 G 2＆lt; 2＆gt;光和B光的峰值波长彼此相邻，并且控制部分可以驱动LED G 2和LED B在其控制下由 切换时分。

公开(公告)号：US5673241A

公开(公告)日：1997-09-30

申请号：US641119

申请日：1996-04-29

申请人： Fumio Koyama ,  Masatoshi Yonekubo ,  Takashi Takeda ,  Toshio Arimura ,  Hidefumi Sakata ,  Osamu Yokoyama

发明人： Fumio Koyama ,  Masatoshi Yonekubo ,  Takashi Takeda ,  Toshio Arimura ,  Hidefumi Sakata ,  Osamu Yokoyama

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B11/105

CPC分类号： G11B7/131 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/1353 ,  G11B11/10543 ,  G11B7/0912 ,  G11B7/0916

摘要： The focus detection mechanism of the invention diffracts the return light reflected off target surface by means of holographic element. The diffracted beams are both received by two long photodetection means as two astigmatic convergent beams that forms circles of least confusion on the same plane near focal plane of a lens. The focus detection signal is obtained from differential output of them. Since the mechanism can form two diffracted beams having circles of least confusion on the same plane, the photodetection means for detection can be disposed side by side, thus simplifying production with increased dimensional accuracy. Also, although a holographic element is used, wavelength fluctuation can be absorbed to provide extremely high reliability.

摘要翻译： 本发明的焦点检测机构通过全息元件衍射从目标表面反射的返回光。 衍射光束由两个长的光电检测装置接收为两个散光会聚光束，其在透镜焦平面附近的相同平面上形成最小混淆的圆。 焦点检测信号从差分输出获得。 由于该机构可以在同一平面上形成具有最少混淆的圆的两个衍射光束，所以用于检测的光检测装置可以并排布置，从而以增加的尺寸精度简化生产。 另外，虽然使用了全息元件，但也可以吸收波长波动，提供极高的可靠性。

公开(公告)号：US08506128B2

公开(公告)日：2013-08-13

申请号：US12788504

申请日：2010-05-27

申请人： Hidefumi Sakata ,  Susumu Aruga ,  Takayuki Matsubara ,  Takeshi Takezawa

发明人： Hidefumi Sakata ,  Susumu Aruga ,  Takayuki Matsubara ,  Takeshi Takezawa

IPC分类号： F21V7/00

CPC分类号： G03B21/14 ,  F21V7/0025 ,  F21V9/14 ,  G03B21/208 ,  G03B21/28

摘要： A light source device includes: a light source which emits light; a first reflector which surrounds a part of the light source and reflects the light emitted from the light source in the direction of an optical axis; and a second reflector which surrounds at least a part of the light source different from the part surrounded by the first reflector and reflects the light emitted from the light source toward the first reflector, wherein the position of a convergence spot of the light reflected by the second reflector is displaced from the position of an emission spot of the light source at least in the direction of a plane perpendicular to the direction of the optical axis.

摘要翻译： 光源装置包括：发光的光源; 第一反射器，其围绕光源的一部分并且沿光轴的方向反射从光源发射的光; 以及第二反射器，其围绕与由第一反射器包围的部分不同的光源的至少一部分，并且将从光源发射的光反射到第一反射器，其中由所述第一反射器反射的光的会聚点的位置 第二反射器至少在垂直于光轴方向的平面的方向上从光源的发射光斑的位置移位。

公开(公告)号：US08007141B2

公开(公告)日：2011-08-30

申请号：US12060407

申请日：2008-04-01

申请人： Takayuki Matsubara ,  Hidefumi Sakata

发明人： Takayuki Matsubara ,  Hidefumi Sakata

IPC分类号： G02B27/42 ,  F21V5/00

CPC分类号： G02B5/32 ,  G02B5/1809 ,  G02B5/1819 ,  G02B27/0037 ,  G02B27/4244 ,  G02B27/425 ,  G03B21/2033 ,  G03B21/208 ,  G03B33/12 ,  H04N9/3105 ,  H04N9/3161 ,  H04N9/3164

摘要： A diffraction optical element includes: a first diffraction pattern which diffracts entering light to produce illumination light for illuminating a first area; and a second diffraction pattern which is disposed adjacent to the first diffraction pattern and diffracts entering light to produce illumination light for illuminating a second area other than the first area by using at least a part of the diffracted light.

摘要翻译： 衍射光学元件包括：衍射入射光以产生用于照射第一区域的照明光的第一衍射图案; 以及第二衍射图案，其被布置为与所述第一衍射图案相邻并且衍射入射光以通过使用所述衍射光的至少一部分来产生用于照亮除所述第一区域之外的第二区域的照明光。