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    Laser projector
    2.
    发明授权
    Laser projector 有权
    激光投影机

    公开(公告)号：US08416481B2

    公开(公告)日：2013-04-09

    申请号：US12724879

    申请日：2010-03-16

    申请人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    发明人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    IPC分类号： G02B26/08

    CPC分类号： G02B26/085 ,  G02B26/101 ,  G03B21/14

    摘要： A laser projector is provided. A laser light source is configured to emit laser light. A scanning section is configured to scan a projection surface in a horizontal direction and a vertical direction with the laser light emitted from the laser light source, thereby forming an image on the projection surface. A generating section is configured to generate a pulse signal. A driving section is configured to reciprocate the scanning section in the horizontal direction in accordance with the pulse signal generated by the generating section. An adjusting section is configured to adjust a pulse pattern of the pulse signal generated by the generating section so as to change a scanning angle range of the scanning section in the horizontal direction.

    摘要翻译： 提供激光投影仪。 激光源被配置为发射激光。 扫描部被配置为利用从激光源发射的激光来扫描水平方向和垂直方向的投影面，从而在投影面上形成图像。 生成部分被配置为产生脉冲信号。 驱动部构成为根据由发生部生成的脉冲信号使扫描部在水平方向上往复运动。 调整部被配置为调整由生成部生成的脉冲信号的脉冲图案，以便改变扫描部在水平方向上的扫描角度范围。

    Projector
    3.
    发明授权
    Projector 有权
    投影机

    公开(公告)号：US08243287B2

    公开(公告)日：2012-08-14

    申请号：US12754871

    申请日：2010-04-06

    申请人： Hiroshi Nishigaki ,  Atsuya Hirano ,  Atsuhiko Chikaoka ,  Ken Nishioka

    发明人： Hiroshi Nishigaki ,  Atsuya Hirano ,  Atsuhiko Chikaoka ,  Ken Nishioka

    IPC分类号： G01B11/14

    CPC分类号： H04N9/3147 ,  G03B21/132 ,  H04N9/3129 ,  H04N9/3194

    摘要： A projector includes a determination section, an amplification section, an identification section and a calculation section. The determination section specifies a reflection position of a reflected light received by a light receiving sensor based on a horizontal synchronizing signal and a pixel clock signal of an image signal, and determines an amplification quantity of the intensity of a reflected light reflected at the specified reflection position to be received by the light receiving sensor. The amplification section amplifies the intensity of the reflected light received by the light receiving sensor by the determined amplification quantity. The identification section identifies an external obstacle when the intensity of the amplified reflected light exceeds a predetermined threshold value. The calculation section calculates the position information of the external obstacle based on the timing of identifying the external obstacle, the horizontal synchronizing signal, and the pixel clock signal of the image signal.

    摘要翻译： 投影仪包括判定部，放大部，识别部和计算部。 确定部分基于水平同步信号和图像信号的像素时钟信号指定由光接收传感器接收的反射光的反射位置，并且确定在指定反射处反射的反射光的强度的放大量 由光接收传感器接收的位置。 放大部分通过确定的放大量放大由光接收传感器接收的反射光的强度。 当放大反射光的强度超过预定阈值时，识别部分识别外部障碍物。 计算部根据识别图像信号的外部障碍物的时间，水平同步信号和像素时钟信号来计算外部障碍物的位置信息。

    Image display apparatus
    5.
    发明授权
    Image display apparatus 有权
    图像显示装置

    公开(公告)号：US08197066B2

    公开(公告)日：2012-06-12

    申请号：US12269487

    申请日：2008-11-12

    申请人： Kenji Nagashima ,  Atsuhiko Chikaoka ,  Seiji Takemoto ,  Hiroki Matsubara ,  Yutaka Takahashi ,  Ken Nishioka

    发明人： Kenji Nagashima ,  Atsuhiko Chikaoka ,  Seiji Takemoto ,  Hiroki Matsubara ,  Yutaka Takahashi ,  Ken Nishioka

    IPC分类号： G03B21/14

    CPC分类号： H04N9/3155 ,  H04N9/3129

    摘要： A laser projector includes a green laser, a two-wavelength laser, a PBS, a collimator lens, a two-axis galvanometer mirror, a group of lenses, and a screen. The green laser emits a green laser beam. The two-wavelength laser emits red and blue laser beams. The PBS is provided at the position where respective optical paths of laser beams emitted from respective lasers cross each other to cause these optical paths to coincide with each other.

    摘要翻译： 激光投影机包括绿色激光器，双波长激光器，PBS，准直透镜，双轴电流计镜，一组透镜和屏幕。 绿色激光发出绿色激光。 双波长激光器发出红色和蓝色激光束。 PBS被设置在从各个激光器发射的激光束的各个光路彼此交叉的位置处，使得这些光路彼此一致。

    Laser projector
    6.
    发明授权
    Laser projector 有权
    激光投影机

    公开(公告)号：US07978387B2

    公开(公告)日：2011-07-12

    申请号：US12770005

    申请日：2010-04-29

    申请人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    发明人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    IPC分类号： G02B26/08

    CPC分类号： G02B26/105 ,  G02B26/0833 ,  H04N9/3129

    摘要： A laser projector including a laser light source, a scan unit to scan the laser beam, a scan signal generation unit to generate a pulse signal, a drive unit to drive the scan unit and a pulse pattern adjustment unit to adjust a pulse pattern, wherein the pulse pattern adjustment unit adjusts the pulse pattern to a first pulse pattern for adjusting the swing amount from a first swing amount to a second swing amount in a projection interval, adjusts the pulse pattern to a second pulse pattern for adjusting the swing amount from the second swing amount back to the first swing amount in a first-stage interval in a non-projection interval, and adjusts the pulse pattern to a third pulse pattern for keeping the swing amount at the first swing amount in a second-stage interval in the non-projection interval until a scan position returns to the projection interval.

    摘要翻译： 一种激光投影仪，包括激光光源，用于扫描激光束的扫描单元，产生脉冲信号的扫描信号生成单元，驱动扫描单元的驱动单元和脉冲图案调整单元，调整脉冲图案，其中， 脉冲图案调整单元将脉冲图案调整为第一脉冲图案，用于在投影间隔中将摆动量从第一摆动量调整到第二摆动量，将脉冲图案调整为第二脉冲图案，以从第二脉冲图案调整摆动量 在非投影间隔中的第一级间隔中的第二摆动量回到第一摆动量，并且将脉冲图案调整为第三脉冲图案，以将第一摆动量的摆动量保持在第二级间隔中 非投影间隔，直到扫描位置返回到投影间隔。

    Laser driver circuit and laser display
    7.
    发明授权
    Laser driver circuit and laser display 有权
    激光驱动电路和激光显示

    公开(公告)号：US07953132B2

    公开(公告)日：2011-05-31

    申请号：US12555256

    申请日：2009-09-08

    申请人： Ken Nishioka ,  Kenji Nagashima ,  Atsuya Hirano ,  Atsuhiko Chikaoka

    发明人： Ken Nishioka ,  Kenji Nagashima ,  Atsuya Hirano ,  Atsuhiko Chikaoka

    IPC分类号： H01S3/00

    CPC分类号： H01S5/042 ,  H01S5/0428 ,  H04N9/3129 ,  H04N9/3155

    摘要： A laser driver circuit comprising a current supply circuit for supplying a laser diode with a current is provided. The current supply circuit comprises a voltage-to-current converter circuit, a current output line for outputting the current generated by the voltage-to-current converter circuit, a current supply line connected to the laser diode, a ground line connected to the ground, and a current path switch for selectively connecting either the current supply line or the ground line to the current output line. The laser driver circuit further comprises a current output prevention circuit for preventing the voltage-to-current converter circuit from generating the current by disconnecting the voltage input line using a voltage input switch so that the voltage is not input to the voltage-to-current converter circuit, when the current output line and the ground line are connected by the current path switch.

    摘要翻译： 提供了一种包括用于向激光二极管提供电流的电流供应电路的激光驱动器电路。 电流供应电路包括电压 - 电流转换器电路，用于输出由电压 - 电流转换器电路产生的电流的电流输出线，连接到激光二极管的电流线，连接到地的接地线 以及用于选择性地将电流供给线或接地线连接到电流输出线的电流路径开关。 激光驱动器电路还包括电流输出防止电路，用于通过使用电压输入开关断开电压输入线来防止电压 - 电流转换器电路产生电流，使得电压未被输入到电压 - 电流 转换器电路，当电流输出线和接地线由电流路径开关连接时。

    Laser Projector
    8.
    发明申请
    Laser Projector 失效
    激光投影仪

    公开(公告)号：US20110069363A1

    公开(公告)日：2011-03-24

    申请号：US12782796

    申请日：2010-05-19

    申请人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    发明人： Atsuhiko Chikaoka ,  Atsuya Hirano ,  Ken Nishioka ,  Hiroshi Nishigaki

    IPC分类号： G02B26/10

    CPC分类号： G02B26/101 ,  G02B26/127

    摘要： A laser projector can generate a pulse signal capable of being generated according to the resolution of the clock signal, the pulse signal having a basic period and a basic pulse width each infinitely approximated to the characteristics of the resonance frequency. Moreover, because the laser projector can generate a pulse signal capable of correcting the errors led to be included in the approximated pulse signal, the laser projector can drive the scanning section with a horizontal vibration width corresponding to the resonance frequency, and can suitably display a projected image on a projection plane.

    摘要翻译： 激光投影仪可以产生能够根据时钟信号的分辨率产生的脉冲信号，脉冲信号具有基本周期和基本脉冲宽度，每个基本脉冲宽度无限接近谐振频率的特性。 此外，由于激光投影仪能够产生能够校正导致包含在近似脉冲信号中的误差的脉冲信号，所以激光投影仪可以以对应于共振频率的水平振动宽度驱动扫描部，并且可以适当地显示 投影图像在投影平面上。

    Optical pickup apparatus equipped with a lens angle adjusting member and a semiconductor laser element
    9.
    发明授权
    Optical pickup apparatus equipped with a lens angle adjusting member and a semiconductor laser element 失效
    配备有透镜角度调节构件和半导体激光元件的光学拾取装置

    公开(公告)号：US07898911B2

    公开(公告)日：2011-03-01

    申请号：US11485792

    申请日：2006-07-13

    申请人： Ken Nishioka

    发明人： Ken Nishioka

    IPC分类号： G11B7/00 ,  G02B7/02

    CPC分类号： G11B7/13922 ,  G11B7/1376

    摘要： In an optical pickup apparatus, a collimator lens is rockably supported by edges of two protruding portions formed on opposing sides of a groove of an optical base. The collimator lens is urged against the edges of the two protruding portions by a leaf spring. The position in vertical direction of one end of the leaf spring is adjusted by a position adjustor. In this manner, a tilt angle of the collimator lens is adjusted. Therefore, astigmatism of the light spot can precisely be compensated for irrespective of variations among apparatuses to achieve an excellent light spot.

    摘要翻译： 在光学拾取装置中，准直透镜由形成在光学基座的槽的相对侧上的两个突出部分的边缘摇摆地支撑。 准直透镜通过板簧被推靠在两个突出部分的边缘上。 板簧的一端的垂直方向的位置由位置调节器调节。 以这种方式，调整准直透镜的倾斜角度。 因此，无论设备之间的变化如何，可以精确地补偿光斑的散光以实现优异的光点。