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公开(公告)号：US07010006B2
公开(公告)日：2006-03-07
申请号：US10465948
申请日：2002-06-21
申请人： Ken'ichi Kasazumi , Yasuo Kitaoka , Tosifumi Yokoyama , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hisashi Senga , Shigeru Furumiya , Hiromichi Ishibashi
发明人： Ken'ichi Kasazumi , Yasuo Kitaoka , Tosifumi Yokoyama , Kiminori Mizuuchi , Kazuhisa Yamamoto , Hisashi Senga , Shigeru Furumiya , Hiromichi Ishibashi
CPC分类号： H01S5/0687 , G02F1/37 , H01S5/005 , H01S5/0092 , H01S5/06256 , H01S5/0683
摘要： A light source device can attain a stable output of a harmonic even when there occurs a change in the ambient temperature or fluctuation in the output power. The light source device is provided with a semiconductor laser source (4), an optical waveguide-type QPM-SHG device (5) for generating a second harmonic from light emitted from the semiconductor laser source (4), a wavelength control means (7) for controlling a wavelength of light emitted from the semiconductor laser source (4), a means for slightly fluctuating wavelength (8) for changing a wavelength of light emitted from the semiconductor laser source (4) and a means for detecting a change in output light power of the optical waveguide-type QPM-SHG device (5) that occurs when a wavelength of light emitted from the semiconductor laser source (4) is changed. In this case, a wavelength of light emitted from the semiconductor laser source (4) is controlled to an optimum wavelength of the optical waveguide-type QPM-SHG device (5) based on a change in output light power of the optical waveguide-type QPM-SHG device (5) that occurs when a wavelength of light emitted from the semiconductor laser source (4) is changed.
摘要翻译： 即使发生环境温度的变化或输出功率的波动，光源装置也可以获得稳定的谐波输出。 光源装置设置有半导体激光源（4），用于从半导体激光源（4）发射的光产生二次谐波的光波导型QPM-SHG器件（5），波长控制装置（7） ），用于控制从半导体激光源（4）发射的光的波长，用于稍微波动的用于改变从半导体激光源（4）发射的光的波长的波长（8）的装置和用于检测输出变化的装置 当从半导体激光源（4）发射的光的波长改变时发生的光波导型QPM-SHG器件（5）的光功率变化。 在这种情况下，基于光波导型的输出光功率的变化，从半导体激光源（4）发射的光的波长被控制到光波导型QPM-SHG器件（5）的最佳波长 当从半导体激光源（4）发射的光的波长改变时发生的QPM-SHG器件（5）。
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公开(公告)号：US07085297B2
公开(公告)日：2006-08-01
申请号：US10826313
申请日：2004-04-19
CPC分类号： H01S5/06256 , H01S5/005 , H01S5/0092 , H01S5/06226 , H01S5/06253
摘要： A driving method of a semiconductor laser having an active layer region, a phase adjustment region and a distributed Bragg reflector region includes the steps of: calculating an average value of multipulse modulation currents modulated between a peak current and a bottom current input to said active layer region; calculating a difference between the average value of the multipulse modulation currents and a bias current input to the active layer region; and applying a first compensation current to the phase adjustment region when the multipulse modulation current is input to the active layer region, and applying a second compensation current corresponding to the difference to the phase adjustment region when the bias current is input to the active layer region.
摘要翻译： 具有有源层区域，相位调整区域和分布布拉格反射器区域的半导体激光器的驱动方法包括以下步骤：计算在输入到所述有源层的峰值电流和底部电流之间调制的多脉冲调制电流的平均值 地区; 计算多脉冲调制电流的平均值与输入到有源层区域的偏置电流之间的差; 以及当所述多脉冲调制电流被输入到所述有源层区域时，向所述相位调整区域施加第一补偿电流，以及当所述偏置电流被输入到所述有源层区域时，将与所述差异对应的第二补偿电流施加到所述相位调整区域 。
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3.发明授权Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof 失效从具有沿其轨道形成的识别标记的两种类型的光盘再现信息的设备和方法公开(公告)号：US06738326B1
公开(公告)日：2004-05-18
申请号：US09610364
申请日：2000-07-05
IPC分类号： G11B7005
CPC分类号： G11B7/005 , G11B7/0053 , G11B2007/0006
摘要： When information is reproduced in an optical disk of high recording density or of low recording density, a main beam and sub-beams are emitted onto adjacent tracks. The main beam has a shape longer in a direction perpendicular to the tracks. When the optical disk of high recording density is reproduced, cross talk components from adjacent tracks included in signals reproduced from reflection light of the main beam are canceled by using signals reproduced from reflection lights of the sub-beams. When the optical disk of low recording density is reproduced, information is reproduced with a beam. Thus, two types of optical disks can be reproduced with a simple structure in a compatible way. In the cross talk canceling, discrimination marks formed along the tracks at constant distances are reproduced, and a time difference between the main beam and the sub-beams is corrected precisely by using track jump and detection of discrimination marks.
摘要翻译： 当在高记录密度或低记录密度的光盘中再现信息时，主光束和子光束被发射到相邻的光道上。 主梁具有在与轨道垂直的方向上更长的形状。 当再现高记录密度的光盘时，通过使用从副光束的反射光再现的信号来消除包含在主光束的反射光中再现的信号中的相邻光道的串扰分量。 当再现低记录密度的光盘时，用光束再现信息。 因此，可以以兼容的方式以简单的结构再现两种类型的光盘。 在串扰消除中，再现沿着轨道形成的识别标记，并且通过使用轨迹跳跃和识别标记的检测来精确地校正主光束和子光束之间的时间差。
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4.发明授权Optical disk signal reproducing apparatus and crosstalk canceling system for use therein 失效用于其中的光盘信号再现装置和串扰消除系统公开(公告)号：US06442114B1
公开(公告)日：2002-08-27
申请号：US09406735
申请日：1999-09-28
IPC分类号： G11B700
CPC分类号： G11B20/10212 , G11B7/005 , G11B20/10009
摘要： In a crosstalk canceling system for use in an optical disk signal reproducing apparatus, rough delay units roughly adjust a delay amount of reproduction signals and fine delay units finely adjust a delay amount with high precision, and a delay amount control unit controls the delay amounts of the rough and fine delay units so that the jitter of the reproduction signal is minimized.
摘要翻译： 在用于光盘信号再现装置的串扰消除系统中，粗略延迟单元粗略地调整再现信号的延迟量和精细延迟单元以高精度精细地调整延迟量，并且延迟量控制单元控制延迟量 粗略和精细的延迟单元，使得再现信号的抖动最小化。
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5.发明授权Apparatus and method for reproducing information from two types of optical disks having discrimination marks formed along tracks thereof 失效从具有沿其轨道形成的识别标记的两种类型的光盘再现信息的设备和方法公开(公告)号：US07057994B2
公开(公告)日：2006-06-06
申请号：US10814192
申请日：2004-04-01
IPC分类号： G11B7/09
CPC分类号： G11B7/005 , G11B7/0053 , G11B2007/0006
摘要： When information is reproduced in an optical disk of high recording density or of low recording density, a main beam and sub-beams are emitted onto adjacent tracks. The main beam has a shape longer in a direction perpendicular to the tracks. When the optical disk of high recording density is reproduced, cross talk components from adjacent tracks included in signals reproduced from reflection light of the main beam are canceled by using signals reproduced from reflection lights of the sub-beams. When the optical disk of low recording density is reproduced, information is reproduced with a beam. Thus, two types of optical disks can be reproduced with a simple structure in a compatible way. In the cross talk canceling, discrimination marks formed along the tracks at constant distances are reproduced, and a time difference between the main beam and the sub-beams is corrected precisely by using track jump and detection of discrimination marks.
摘要翻译： 当在高记录密度或低记录密度的光盘中再现信息时，主光束和子光束被发射到相邻的光道上。 主梁具有在与轨道垂直的方向上更长的形状。 当再现高记录密度的光盘时，通过使用从副光束的反射光再现的信号来消除包含在主光束的反射光中再现的信号中的相邻光道的串扰分量。 当再现低记录密度的光盘时，用光束再现信息。 因此，可以以兼容的方式以简单的结构再现两种类型的光盘。 在串扰消除中，再现沿着轨道形成的识别标记，并且通过使用轨迹跳跃和识别标记的检测来精确地校正主光束和子光束之间的时间差。
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公开(公告)号：US08152314B2
公开(公告)日：2012-04-10
申请号：US11916041
申请日：2006-05-22
申请人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Shin-ichi Kadowaki , Kiminori Mizuuchi , Hiroyuki Furuya , Kazuhisa Yamamoto
发明人： Toshifumi Yokoyama , Ken'ichi Kasazumi , Shin-ichi Kadowaki , Kiminori Mizuuchi , Hiroyuki Furuya , Kazuhisa Yamamoto
IPC分类号： G03B21/00
CPC分类号： G03B21/005
摘要： A display device (100) of the present invention has a first switch (3) and a second switch (4) on an upper surface of its casing, and includes a control circuit (18) for controlling the first switch (3) and the second switch (4) and a light source (19) inside the casing. The control circuit (18) performs control so that the light source (19) is turned on when the second switch (4) is pressed after a predetermined period of time has passed from when the first switch (3) was pressed. Thereby, the display device (100) of the present invention prevents entering of a person into a projection area before projection of video, and controls inadvertent start-up.
摘要翻译： 本发明的显示装置（100）在其壳体的上表面具有第一开关（3）和第二开关（4），并且包括用于控制第一开关（3）的控制电路（18）和 第二开关（4）和光源（19）。 控制电路（18）进行控制，使得当从第一开关（3）被按压经过预定时间段之后按下第二开关（4）时，光源（19）被接通。 因此，本发明的显示装置（100）防止在投影视频之前将人进入投影区域，并且控制无意的启动。
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7.发明授权Light source device for display device, display device, and method for adjusting image of display device 有权用于显示装置的光源装置，显示装置和调整显示装置的图像的方法公开(公告)号：US07922336B2
公开(公告)日：2011-04-12
申请号：US11885208
申请日：2006-02-28
IPC分类号： G03B21/22
CPC分类号： G03B21/10 , G03B21/2033 , G03B21/208 , G03B21/28 , H04N5/7408 , H04N9/3141 , H04N9/3191
摘要： A light source device for a display device for projecting an image on a screen is provided, the light source device for display device including a light source unit operable to output light; an image outputting unit operable to output an image by giving an image signal to the light; and a control circuit operable to switch the image output from the image outputting unit between a normal image and a mirror reversed image formed by reversing the normal image right and left by controlling the image signal, such that outputting type is switched between a front projection in which the image is projected onto the screen from a front on the same side as the viewing side, and a rear projection in which the image is projected onto the screen from a rear plane on the opposite side to the viewing side.
摘要翻译： 提供了一种用于在屏幕上投影图像的显示装置的光源装置，所述显示装置用光源装置包括可操作以输出光的光源单元; 图像输出单元，用于通过向所述光提供图像信号来输出图像; 以及控制电路，其可操作以通过控制图像信号来切换从图像输出单元输出的图像在正常图像和通过反转正常图像而形成的镜像反转图像之间，使得输出类型在前投影 其中图像从与观看侧相同侧的前部投影到屏幕上，以及后投影，其中图像从与观看侧相反的一侧的后平面投影到屏幕上。
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公开(公告)号：US07796331B2
公开(公告)日：2010-09-14
申请号：US11914694
申请日：2006-05-15
IPC分类号： G03B21/56
CPC分类号： G03B21/60
摘要： A laser image display device and a laser image display screen used for the laser image display device. The laser image display device is provided with a laser light source for emitting laser beams and a laser image display screen (10) for projecting the laser beams. The laser image display screen (10) is provided with a reflection scattering body (11) for scatter reflecting the laser beams, and a semi-transmissive diffusion layer (12) arranged substantially parallel to the reflection scattering body (11). The semi-transmissive diffusion layer (12) reflects at least a part of the laser beams, transmits the rest, diffuses the transmitting laser beams and projects them.
摘要翻译： 激光图像显示装置和用于激光图像显示装置的激光图像显示屏。 激光图像显示装置设置有用于发射激光束的激光光源和用于投影激光束的激光图像显示屏幕（10）。 激光图像显示屏（10）设置有用于散射反射激光束的反射散射体（11）和基本上平行于反射散射体（11）布置的半透射扩散层（12）。 半透射扩散层（12）反射至少一部分激光束，透射其余部分，扩散发射激光束并投影它们。
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公开(公告)号：US20090244405A1
公开(公告)日：2009-10-01
申请号：US12088572
申请日：2006-09-26
申请人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
发明人： Kazuhisa Yamamoto , Tetsuro Mizushima , Ken'ichi Kasazumi , Akihiro Morikawa , Shin-ichi Kadowaki
CPC分类号： G03B21/16
摘要： Disclosed herein is a laser projection device which can keep the colors of red, blue, and green laser beams constant even in high ambient temperature. The laser projection device includes a red laser light source which emits a red laser beam, a temperature sensor for detecting the temperature of the red laser light source, and a radiating unit for radiating heat from the red laser light source to the outside based on the temperature of the red laser light source detected by the temperature sensor.
摘要翻译： 这里公开了一种激光投射装置，即使在高环境温度下也能够保持红色，蓝色和绿色激光束的颜色恒定。 激光投影装置包括发射红色激光束的红色激光光源，用于检测红色激光光源的温度的温度传感器，以及用于将红色激光光源的热量散发到外部的辐射单元，其基于 由温度传感器检测的红色激光光源的温度。
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公开(公告)号：US07593159B2
公开(公告)日：2009-09-22
申请号：US10573990
申请日：2004-09-30
IPC分类号： G03B21/56
CPC分类号： H04N9/3129 , G02B27/48 , H04N5/7416
摘要： A display device of the present invention is provided with a light source (4) for emitting coherent light and displaying an image, and an image receiving part (1) comprising not less than two screens, onto which the coherent light is projected, wherein at least one of the screens constituting the image receiving part (1) is vibrated by an airflow applied to a front or rear surface of the image receiving part (1). Further, the image receiving part (1) has a function of a speaker. Thereby, when coherent light is used as a light source for display, it is possible to suppress spots of light intensity which are called speckle noise and occur due to interference of laser beams reflected at the image receiving part.
摘要翻译： 本发明的显示装置设置有用于发射相干光并显示图像的光源（4）和包括不少于两个屏幕的图像接收部分（1），相干光被投射到其上，其中， 构成图像接收部分（1）的屏幕中的至少一个由施加到图像接收部分（1）的前表面或后表面的气流振动。 此外，图像接收部（1）具有扬声器的功能。 因此，当使用相干光作为显示用光源时，可以抑制称为斑点噪声的光强度点，并且由于在图像接收部分反射的激光束的干涉而发生。
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