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    WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND PROJECTION DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE AND LASER LIGHT SOURCE PROVIDED WITH SAME
    4.
    发明申请
    WAVELENGTH CONVERSION LASER LIGHT SOURCE, AND PROJECTION DISPLAY DEVICE, LIQUID CRYSTAL DISPLAY DEVICE AND LASER LIGHT SOURCE PROVIDED WITH SAME 有权
    波长转换激光光源，投影显示装置，液晶显示装置和激光源光源

    公开(公告)号：US20110147566A1

    公开(公告)日：2011-06-23

    申请号：US13001944

    申请日：2009-07-08

    申请人： Hiroyuki Furuya ,  Koichi Kusukame ,  Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Kenji Nakayama ,  Kazuhisa Yamamoto ,  Shinichi Kadowaki ,  Tomoya Sugita ,  Nobuyuki Horikawa

    发明人： Hiroyuki Furuya ,  Koichi Kusukame ,  Tetsuro Mizushima ,  Toshifumi Yokoyama ,  Kenji Nakayama ,  Kazuhisa Yamamoto ,  Shinichi Kadowaki ,  Tomoya Sugita ,  Nobuyuki Horikawa

    IPC分类号： G01J1/32

    CPC分类号： G02F1/37 ,  G02F2001/3546 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/09415 ,  H01S3/1053 ,  H01S3/109 ,  H01S3/1306 ,  H01S3/1312 ,  H01S3/2391 ,  H04N9/3161

    摘要： A wavelength conversion laser light source includes: a fundamental light source for outputting fundamental light; a wavelength conversion element with a nonlinear optical effect for converting the fundamental light into harmonic light of a different wavelength; a first optical receiver for receiving light of a specific polarization direction contained in the fundamental light output from the fundamental light source and converting an amount of light thereof into an electrical signal; a second optical receiver for receiving the harmonic light output from the wavelength conversion element and converting an amount of light thereof into an electrical signal; a temperature holding unit for holding a temperature of the wavelength conversion element constant; a fundamental light control unit for performing first control of controlling an amount of light of the fundamental light output from the fundamental light source based on the electrical signal from the second optical receiver, and second control of controlling an amount of light of the fundamental light based on the electrical signal from the first optical receiver; and a temperature control unit for performing third control of controlling a holding temperature of the temperature holding unit based on the electrical signal from the second optical receiver.

    摘要翻译： 一种波长转换激光源包括：用于输出基本光的基本光源; 具有用于将基本光转换成不同波长的谐波光的非线性光学效应的波长转换元件; 第一光接收器，用于接收从基本光源输出的基本光中包含的特定偏振方向的光，并将其光量转换成电信号; 第二光接收器，用于接收从波长转换元件输出的谐波光并将其光量转换成电信号; 用于保持波长转换元件的温度恒定的温度保持单元; 基本光控制单元，用于执行基于来自第二光接收器的电信号来控制从基本光源输出的基本光的光量的第一控制，以及控制基光的光量的第二控制 对来自第一光接收器的电信号; 以及温度控制单元，用于基于来自第二光接收器的电信号执行控制温度保持单元的保持温度的第三控制。

    WAVELENGTH CONVERSION DEVICE AND IMAGE DISPLAY APPARATUS USING SAME
    7.
    发明申请
    WAVELENGTH CONVERSION DEVICE AND IMAGE DISPLAY APPARATUS USING SAME 有权
    波长转换装置和图像显示装置

    公开(公告)号：US20120044280A1

    公开(公告)日：2012-02-23

    申请号：US13266956

    申请日：2011-03-01

    申请人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    发明人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    IPC分类号： G09G5/10 ,  G09G5/00 ,  G02F1/35

    CPC分类号： H01S3/109 ,  G03B21/20 ,  G03B21/2033 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08072 ,  H01S3/094076 ,  H01S3/1312 ,  H04N9/3111 ,  H04N9/3161

    摘要： A wavelength conversion device includes an excitation light source (11) that generates excitation light, a laser medium (12) that generates fundamental light by means of the excitation light, two resonator mirrors (13) that are disposed with the laser medium (12) being interposed therebetween and resonate the fundamental light, a wavelength conversion element (14) that is disposed between the two resonator mirrors (13) and wavelength-converts the fundamental light to harmonic light, and a drive unit (15) that generates a pulse modulation signal to pulse-drive the excitation light source (11). The laser medium (12) is formed of a material having a thermo-optical effect and a positive thermo-optical constant. The pulse modulation signal generated by the drive unit (15) has an initial interval (P1) including a rising edge of a pulse and a remaining interval (P2) subsequent to the initial interval. An average signal intensity during the initial interval (P1) is higher than an average signal intensity during the remaining interval (P2).

    摘要翻译： 波长转换装置包括产生激发光的激发光源（11），通过激发光产生基本光的激光介质（12），与激光介质（12）一起设置的两个谐振器反射镜（13） 插入在它们之间并共振基本光;布置在两个谐振镜之间的波长转换元件（14），并将基波波长转换成谐波光;以及驱动单元（15），其产生脉冲调制 信号脉冲驱动激发光源（11）。 激光介质（12）由具有热光效应和正热稳定性的材料形成。 由驱动单元（15）产生的脉冲调制信号具有包括脉冲上升沿和初始间隔之后的剩余间隔（P2）的初始间隔（P1）。 初始间隔（P1）期间的平均信号强度高于剩余间隔（P2）期间的平均信号强度。

    Wavelength conversion device and image display apparatus using same
    8.
    发明授权
    Wavelength conversion device and image display apparatus using same 有权
    波长转换装置和使用它的图像显示装置

    公开(公告)号：US08976203B2

    公开(公告)日：2015-03-10

    申请号：US13266956

    申请日：2011-03-01

    申请人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    发明人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    IPC分类号： G09G5/10 ,  H01S3/109 ,  G03B21/20 ,  H04N9/31 ,  H01S3/06 ,  H01S3/08 ,  H01S3/094 ,  H01S3/131

    CPC分类号： H01S3/109 ,  G03B21/20 ,  G03B21/2033 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08072 ,  H01S3/094076 ,  H01S3/1312 ,  H04N9/3111 ,  H04N9/3161

    摘要： A wavelength conversion device includes an excitation light source that generates excitation light, a laser medium that generates fundamental light by means of the excitation light, two resonator mirrors that are disposed with the laser medium being interposed therebetween and resonate the fundamental light, a wavelength conversion element that is disposed between the two resonator mirrors and wavelength-converts the fundamental light to harmonic light, and a drive unit that generates a pulse modulation signal to pulse-drive the excitation light source. The laser medium is formed of a material having a thermo-optical effect and a positive thermo-optical constant. The pulse modulation signal generated by the drive unit has an initial interval including a rising edge of a pulse and a remaining interval subsequent to the initial interval. An average signal intensity during the initial interval is higher than an average signal intensity during the remaining interval.

    摘要翻译： 波长转换装置包括产生激发光的激发光源，通过激发光产生基本光的激光介质，设置在激光介质之间的两个谐振器反射镜，并且谐振基本光，波长转换 元件，其布置在两个谐振器反射镜之间并将基本光波长转换成谐波光;以及驱动单元，其产生脉冲驱动激励光源的脉冲调制信号。 激光介质由具有热光效应和正的热 - 光常数的材料形成。 由驱动单元生成的脉冲调制信号具有包括脉冲的上升沿和初始间隔之后的剩余间隔的初始间隔。 初始间隔期间的平均信号强度高于剩余间隔期间的平均信号强度。

    Image display apparatus which reduces speckle noise and which operates with low power consumption
    9.
    发明授权
    Image display apparatus which reduces speckle noise and which operates with low power consumption 有权
    图像显示装置，其减少散斑噪声并以低功耗进行操作

    公开(公告)号：US08955980B2

    公开(公告)日：2015-02-17

    申请号：US12990076

    申请日：2010-04-06

    申请人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    发明人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    IPC分类号： G03B21/14 ,  G02B27/48 ,  G03B21/00

    CPC分类号： G02B27/48 ,  G03B21/00 ,  G03B21/005 ,  G03B21/14

    摘要： An image display apparatus includes: a laser light source for outputting a laser beam; a diffusion optical element for diffusing the laser beam; a drive unit for oscillating the diffusion optical element; and an image conversion unit for converting the laser beam output from the diffusion optical element into an image. The diffusion optical element disposed in the drive unit is oscillated and operated in a state where an amplitude of the drive of the drive unit, which is, for example, an amplitude that is driven in a direction of the arrow X in a plane that is perpendicular to an optical axis, is not constant.

    摘要翻译： 一种图像显示装置，包括：激光源，用于输出激光束; 用于扩散激光束的扩散光学元件; 用于使扩散光学元件振荡的驱动单元; 以及图像转换单元，用于将从扩散光学元件输出的激光束转换为图像。 设置在驱动单元中的扩散光学元件在驱动单元的驱动的幅度的状态下振荡和操作，该状态例如是在平面内的沿箭头X的方向被驱动的幅度 垂直于光轴，不是恒定的。

    IMAGE DISPLAY APPARATUS
    10.
    发明申请
    IMAGE DISPLAY APPARATUS 有权
    图像显示设备

    公开(公告)号：US20110043768A1

    公开(公告)日：2011-02-24

    申请号：US12990076

    申请日：2010-04-06

    申请人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    发明人： Kenji Nakayama ,  Tetsuro Mizushima ,  Tatsuo Itoh ,  Hiroyuki Furuya

    IPC分类号： G02B27/48 ,  G03B21/14

    CPC分类号： G02B27/48 ,  G03B21/00 ,  G03B21/005 ,  G03B21/14

    摘要： An image display apparatus (10) includes: a laser light source (12) for outputting a laser beam (11); a diffusion optical element (13) for diffusing the laser beam (11); a drive unit (14) for oscillating the diffusion optical element (13); and an image conversion unit (15) for converting the laser beam (11) output from the diffusion optical element (13) into an image. The diffusion optical element (13) disposed in the drive unit (14) is oscillated and operated in a state where an amplitude of the drive of the drive unit (14), which is, for example, an amplitude that is driven in a direction of the arrow X in a plane that is perpendicular to an optical axis, is not constant.

    摘要翻译： 一种图像显示装置（10）包括：用于输出激光束（11）的激光源（12）; 用于扩散激光束（11）的扩散光学元件（13）; 驱动单元（14），用于振荡所述扩散光学元件（13）; 以及用于将从扩散光学元件（13）输出的激光束（11）转换为图像的图像转换单元（15）。 设置在驱动单元（14）中的扩散光学元件（13）在驱动单元（14）的驱动的振幅的状态下振荡并操作，该状态例如是沿着方向 在与光轴垂直的平面中的箭头X不是常数。