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公开(公告)号：JP2008135838A
公开(公告)日：2008-06-12
申请号：JP2006318704
申请日：2006-11-27
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI , YAMAUCHI TAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide a light source device and an image display device that are kept low-cost with simple constitution, can suppress glossiness of emitted light and improve reliability.
SOLUTION: The optical path difference between light traveling along a first optical path A1 which is an optical path of light emitted by a laser light source 11 to pass through an external resonator 14 and travel to an optical element 15 and light traveling along a second optical path B3 which is an optical path of light emitted by the laser light source 11. reflected by the external resonator 14 to pass through a separation unit 12, and reflected by a reflecting unit 17 to travel to the optical element 15 is larger than a distance such that interference between laser light beams is reduced.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：为了提供以简单结构保持低成本的光源装置和图像显示装置，可以抑制发光的光泽度并提高可靠性。 解决方案：沿着作为由激光光源11发射的光的光路穿过外部谐振器14并行进到光学元件15并沿着光行进的光的第一光路A1行进的光之间的光程差 作为由激光光源11发射的光的光路的第二光路B3由外部谐振器14反射以穿过分离单元12并由反射单元17反射以行进到光学元件15的光路更大 比使得激光束之间的干涉减小的距离减小。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008134320A
公开(公告)日：2008-06-12
申请号：JP2006318702
申请日：2006-11-27
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a light source device which has a simple constitution, is small-size and low-cost and can suppress coherence of emission light, and to provide an image display device provided with the light source device.
SOLUTION: The light source device includes: a separation part 12 arranged between a laser beam source 11 and a wavelength conversion element 13, reflecting the beams which pass through the wavelength element 13 in an optical path toward the laser beam source 11 and, thereby, are converted into a prescribed wavelength among beams reflected at an external cavity 14, guiding the beams to a position different from the laser beam source 11 and, at the same time, transmitting beams which are not converted into the prescribed wavelength to the laser beam source 11; and a reflection part 17 which reflects beams reflected at the separation part 12 toward an optical element 15, wherein beams which are transmitted by the external cavity 14 and travels through a first optical path A1 toward the optical element 15 and beams which are reflected at a reflection part 17 and travels through a second optical path A2 toward the optical element 15 intersect each other.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 解决的问题：为了提供一种结构简单，体积小，成本低并且可以抑制发光的相干性的光源装置，并且提供一种设置有光源装置的图像显示装置。 解决方案：光源装置包括：分离部分12，布置在激光束源11和波长转换元件13之间，将在光路中穿过波长元件13的光束反射到激光束源11;以及 从而在外腔14反射的光束之间转换成规定的波长，将光束引导到与激光光源11不同的位置，同时将未转换成规定波长的光束传输到 激光束源11; 以及反射部17，其将在分离部12处反射的光束反射到光学元件15，其中由外部空腔14透射并且经过第一光路A1朝向光学元件15行进的光束和在 反射部分17并穿过第二光路A2朝向光学元件15相交。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008102529A
公开(公告)日：2008-05-01
申请号：JP2007277293
申请日：2007-10-25
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI
CPC classification number: H04N9/3155 , H04N9/3164
Abstract: PROBLEM TO BE SOLVED: To provide a compact and high brightness image display device using a tilt-mirror device and a projector using the image display device. SOLUTION: The image display device includes: a first color-ray light-source 10 for supplying a G-ray; a second color-ray light-source 20 for supplying an R-ray or a B-ray; and a tilt-mirror device 30 having a plurality of movable mirror elements 31, the position thereof being alternatively switchable between a first reflection position and a second reflection position; and the first color-ray light-source 10 is arranged so that the G-ray may be reflected in a prescribed direction L1 when the movable mirror elements 31 are located in the first reflection position, while the G-ray is reflected in a direction L2 when the movable mirror elements 31 are located in the second reflection position; and the second color-ray light-source 20 is arranged so that the R-ray or the B-ray may be reflected in the prescribed direction L1 when the movable mirror elements 31 are located in the second reflection position, while the R-ray or the B-ray is reflected in a direction L3 when the movable mirror elements 31 are located in the first reflection position. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供一种使用倾斜镜装置的紧凑且高亮度的图像显示装置和使用该图像显示装置的投影仪。 解决方案：图像显示装置包括：用于提供G光的第一彩色光源10; 用于提供R射线或B射线的第二彩色射线光源20; 以及具有多个可移动镜元件31的倾斜镜装置30，其位置可在第一反射位置和第二反射位置之间交替切换; 并且第一彩色光源10被布置成使得当可移动镜元件31位于第一反射位置时，G射线可以在规定方向L1上反射，而G光线被反射到 L2，当可动镜元件31位于第二反射位置时; 并且第二彩色光源20被布置成使得当可移动镜元件31位于第二反射位置时，R射线或B射线可以在规定方向L1上反射，而R射线 或者当可动镜元件31位于第一反射位置时，B光线在方向L3上反射。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2008041513A
公开(公告)日：2008-02-21
申请号：JP2006216509
申请日：2006-08-09
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： YONEKUBO MASATOSHI , SUMIYAMA FUMIKA , YAMAUCHI TAISUKE , TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a lighting apparatus which can reduce speckles sufficiently, realize a high light utilization ratio and a low cost. SOLUTION: The lighting apparatus is provided with a light source part 11 to supply a coherent light, a partial transmitting mirror part 13, a first optical element which divides the coherent light by transmission and reflection and a reflecting mirror part 12, a second optical element to make the coherent light from the partial transmitting mirror part 13 enter into the partial transmitting mirror part 13, and the partial transmitting mirror part 13 is arranged so that the coherent light can enter into the partial transmitting mirror 13 at a predetermined angle θ other than 0 degree against its normal N, the reflecting mirror part 12 is arranged to face the part transmitting mirror part 13 and the partial transmitting mirror part 13 is provided at a position other than a position of a light passage of a coherent light last emitted from the reflecting mirror part 12. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供一种可以充分减少斑点的照明装置，实现高的光利用率和低的成本。 解决方案：照明装置设置有用于提供相干光的光源部分11，部分透射镜部分13，通过透射和反射分开相干光的第一光学元件和反射镜部分12， 使来自部分透射镜部分13的相干光的第二光学元件进入部分透射镜部分13，并且部分透射镜部分13被布置成使得相干光可以以预定角度进入部分透射镜13 θ相对于其正常N为0度以外，反射镜部12布置成面向部分透射镜部13，部分透射镜部13设置在除了相干光的光通路的位置以外的位置 从反射镜部分12发射。版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007279204A
公开(公告)日：2007-10-25
申请号：JP2006102955
申请日：2006-04-04
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI
CPC classification number: H04N9/3161 , G02B5/0242 , G02B5/0278 , G02B27/48 , G02F1/133504 , G03B21/005 , H04N9/3105 , H04N9/3111 , H04N9/3132
Abstract: PROBLEM TO BE SOLVED: To provide a projector capable of reducing speckle with simple constitution. SOLUTION: The projector has: liquid crystal type spatial optical modulation devices 14R, 14G and 14B which are image forming parts for forming an image by using light from light source parts 11R, 11G and 11B equipped with a solid light source; a diffusion part 17 provided at the forming position of the image formed by the image forming part and diffusing light; and a projection optical system 18 projecting the light from the diffusion part 17. The diffusion part 17 changes the phase of the light at random for every position on which light is made incident. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供能够以简单的结构减少斑点的投影仪。 解决方案：投影仪具有：液晶型空间光调制装置14R，14G和14B，它们是通过使用配备有固体光源的光源部分11R，11G和11B的光形成图像的图像形成部分; 设置在由图像形成部分形成的图像的形成位置并扩散光的扩散部分17; 以及投影光学系统18，其投影来自扩散部17的光。漫射部17在每次入射光的位置上随机改变光的相位。 版权所有（C）2008，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2007140009A
公开(公告)日：2007-06-07
申请号：JP2005332446
申请日：2005-11-17
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： NOJIMA SHIGEO , TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide an image display device which displays an accurate image according to an image signal by scanning light beams.
SOLUTION: The image display device 100 displays an image by scanning the light beams modulated according to the image signal and comprises: light source parts 101R, 101G and 101B which supply the light beams for respective colors; a horizontal scanner 102 and a vertical scanner 103 which are the scanning parts which scan the light beams from the light source parts in a first direction X and in a second direction Y which is substantially orthogonal to the first direction on the irradiated face S1 of a screen 110; and optical fibers 105 having incident side end parts on the side of the scanning parts and emitting side end parts on the side of the screen 110 and being a plurality of light guide parts which guide the light beams onto the screen 110. The plurality of light guide parts are so arranged that the optical path lengths from the light source parts to the incident side end parts are substantially equal.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种通过扫描光束根据图像信号显示精确图像的图像显示装置。 解决方案：图像显示装置100通过扫描根据图像信号调制的光束来显示图像，并且包括：为各种颜色提供光束的光源部分101R，101G和101B; 作为在第一方向X上扫描来自光源部的光束的扫描部102和垂直扫描器103以及与第一方向大致正交的第二方向Y的扫描部103 屏幕110; 以及光纤105，其具有在扫描部分一侧的入射侧端部并且在屏幕110侧发射侧端部，并且是将光束引导到屏幕110上的多个导光部。多个光 引导部件被布置成使得从光源部分到入射侧端部部分的光路长度基本相等。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007121842A
公开(公告)日：2007-05-17
申请号：JP2005316278
申请日：2005-10-31
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI
IPC: G02B27/28 , G02B27/18 , G02F1/1335 , G02F1/13363 , G03B21/14
Abstract: PROBLEM TO BE SOLVED: To provide a illuminator and an image display device that can suppress dazzling of projected light with simple constitution and can exhibit improved reliability. SOLUTION: The illuminator is provided with: a light source 11 which emits monochromatic light; a polarized light rotating element 12 which temporally changes the plane of polarization of the light emitted by the light source; an optical path separating element 13 which separates the optical path of the projection light projected from the polarized light rotating element 12; and a light guide means 14 of making light beams separated by the optical path separating element 13 incident on a projection object member. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供能够以简单的结构抑制投射光的炫目的照明器和图像显示装置，并且可以表现出提高的可靠性。
解决方案：照明器具有：发出单色光的光源11; 偏振光旋转元件12，其在时间上改变由光源发射的光的偏振面; 分离从偏振光旋转元件12投影的投影光的光路的光路分离元件13; 以及导光体14，其使入射到投影物体上的光路分离元件13分离出的光束。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2007047355A
公开(公告)日：2007-02-22
申请号：JP2005230404
申请日：2005-08-09
Applicant: Seiko Epson Corp , セイコーエプソン株式会社
Inventor： TAKEDA TAKASHI , YAMAZAKI TETSURO , MIYAZAWA YASUNAGA , UCHIKAWA DAISUKE
Abstract: PROBLEM TO BE SOLVED: To provide an optical scanner or the like in which the generation of crosstalk between adjacent pixels is reduced and a high resolution image is displayed.
SOLUTION: The optical scanner scans a light beam corresponding to an image signal and has: a light source part which supplies the light beam; a scanning part which scans the light beam from the light source part in a first direction and a second direction which is substantially orthogonal to the first direction in a region to be irradiated with the light beam. The scanning part is driven so that the frequency at which the light beam is scanned in the first direction may be higher than the frequency at which the light beam is scanned in the second direction. The light source part is driven so that the lighting time ton of the light beam for forming one pixel may be not longer than the time in which the light beam is scanned in the distance which is given by subtracting the length dx of the spot SP in the first direction formed by the light beam in the region to be irradiated from the length Px of the pixel in the first direction formed according to the image signal.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 解决的问题：提供减少相邻像素之间的串扰的产生并显示高分辨率图像的光学扫描器等。 解决方案：光学扫描仪扫描与图像信号相对应的光束，并具有：提供光束的光源部分; 扫描部，其在与光束照射的区域中沿第一方向和与第一方向大致正交的第二方向扫描来自光源部的光束。 扫描部分被驱动，使得沿第一方向扫描光束的频率可能高于在第二方向上扫描光束的频率。 光源部被驱动，使得用于形成一个像素的光束的点亮时间吨可以不比通过减去光点SP的长度dx给出的距离中的光束被扫描的时间长 由根据图像信号形成的沿着第一方向的像素的长度Px照射的区域中的光束形成的第一方向。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006352009A
公开(公告)日：2006-12-28
申请号：JP2005179253
申请日：2005-06-20
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI , YONEKUBO MASATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide laser light source equipment, a display device, and a projector capable of satisfactorily carrying out temperature control in a light source or the like equipped with a plurality of lasers and wavelength transducers forming an array. SOLUTION: The laser light source equipment and the display device comprise the plurality of lasers 12, wavelength transducers 13 respectively carrying out the wavelength conversion of a plurality of light emitted from the the plurality of lasers 12, temperature sensors 14 detecting temperatures of the wavelength transducers 13, and a temperature control means (Peltier element 15) controlling the temperature of the wavelength transducer 13 based on an output of the temperature sensor 14. COPYRIGHT: (C)2007,JPO&INPIT
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260.发明专利
公开(公告)号：JP2006323355A
公开(公告)日：2006-11-30
申请号：JP2006021977
申请日：2006-01-31
Applicant: SEIKO EPSON CORP
Inventor： TAKEDA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To scan a beam of light in satisfactory light amount distribution by simple control. SOLUTION: An optical scanning device for scanning the beam of light modulated in response to an image signal includes: a light source part 101 for supplying the beam of light; a scanning part 200 for scanning the beam of light from the light source part 101 to a first direction and a second direction substantially orthogonal to the first direction; a control part 113 being a pixel timing signal generation part generating a pixel timing signal expressing timing in which the beam of light is incident at each pixel region formed in response to the image signal; a pulse signal generation part 702 for generating a pulse signal having pulse width corresponding to a time of the shortest time or less out of a time passing the pixel region by the beam of light on the basis of the pixel timing signal; and a drive signal generation part 703 for generating a drive signal for driving the light source part 101 on the basis of the pulse signal and the image signal. COPYRIGHT: (C)2007,JPO&INPIT
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