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    Laser presentation system using a laser pointer
    1.
    发明授权
    Laser presentation system using a laser pointer 失效
    使用激光笔的激光演示系统

    公开(公告)号：US06761456B2

    公开(公告)日：2004-07-13

    申请号：US10383762

    申请日：2003-03-10

    Applicant: Akinori Hamana ,  Mitsuyoshi Nishimura ,  Takashi Nagashima ,  Junichi Yokoyama

    Inventor： Akinori Hamana ,  Mitsuyoshi Nishimura ,  Takashi Nagashima ,  Junichi Yokoyama

    IPC: G03B2100

    CPC classification number: G02B27/20

    Abstract: A presentation system for a presenter to safely point out parts of an image projected from a projector onto a screen with laser light projected from a laser pointer held by the presenter is disclosed. The presentation system includes one or more infrared light receiving units on the laser pointer that selectively receive infrared signals from sending units that are mounted on the projector or on walls in order to control emission of laser light from the laser pointer. Arrangements of the sending and receiving units are designed to allow emission of the laser light from the pointer only when the laser pointer is pointed toward the projection screen. A control unit in the laser pointer may determine if the laser pointer is pointed correctly or a gravity operated shutter may further assist in preventing unsafe projection of laser light from the laser pointer.

    Abstract translation: 本发明公开了一种演示系统，用于通过从由演示者所保持的激光指示器投影的激光将安全地将从投影仪投影的图像的一部分指向屏幕上。 呈现系统包括在激光指示器上的一个或多个红外光接收单元，其选择性地接收来自安装在投影仪或壁上的发送单元的红外信号，以便控制来自激光指示器的激光的发射。 发送和接收单元的布置被设计成仅当激光指示器指向投影屏幕时才能从指针发射激光。 激光指示器中的控制单元可以确定激光指针是否正确指向，或者重力操作的快门可进一步有助于防止来自激光指示器的激光的不安全投影。

    Presentation system using laser pointer
    2.
    发明授权
    Presentation system using laser pointer 失效
    演示系统使用激光笔

    公开(公告)号：US06698897B2

    公开(公告)日：2004-03-02

    申请号：US10200288

    申请日：2002-07-23

    Applicant: Akinori Hamana ,  Mitsuyoshi Nishimura

    Inventor： Akinori Hamana ,  Mitsuyoshi Nishimura

    IPC: G03B2100

    CPC classification number: G06F3/0386 ,  G02B27/20 ,  G03B27/20 ,  G06F3/03542 ,  H04N5/74

    Abstract: A presentation system comprises a screen, a laser pointer operated by a user to project laser beam on the screen, and an infrared light projector for emitting infrared light on the entire surface of the screen. The laser pointer comprises an infrared light receiving section directed in the same direction as a projection direction of laser beam for receiving infrared light projected from the infrared light projector and reflected from the screen, and a control section for causing the laser pointer to project laser beam only while the infrared light receiving section is receiving infrared light.

    Abstract translation: 呈现系统包括屏幕，由用户操作以在屏幕上投射激光束的激光指示器，以及用于在屏幕的整个表面上发射红外光的红外光投射器。 该激光指示器包括：与激光束的投影方向相同的方向指向的红外光接收部分，用于接收从红外光投射器投影并从屏幕反射的红外光;以及控制部分，用于使激光指示器投射激光束 只有红外光接收部分正在接收红外光。

    Presentation system using laser pointer
    4.
    发明授权
    Presentation system using laser pointer 失效
    演示系统使用激光笔

    公开(公告)号：US06910778B2

    公开(公告)日：2005-06-28

    申请号：US10375068

    申请日：2003-02-28

    Applicant: Akinori Hamana ,  Junichi Yokoyama

    Inventor： Akinori Hamana ,  Junichi Yokoyama

    IPC: G02B27/20 ,  G03B21/00 ,  G09G5/08

    CPC classification number: G02B27/20

    Abstract: A presentation system includes a screen device, a projecting device that projects a visible image onto the screen device, and a laser pointer operated by a user, that projects a laser beam onto the screen device. The laser pointer includes an infrared light emitting section and a laser beam emitting section. A projected image of the infrared light projected onto the screen is sensed by an infrared light sensing section. Movement direction and movement distance of the projected image and button click signal are converted into mouse data usable by computer. An image based on the mouse data from the computer is projected from a projector to the screen. A human body sensor which senses heat of human body existing in a projected direction of the laser beam is settled to supply a safe presentation system by controlling the projection of the laser beam in case this sensor is operated.

    Abstract translation: 呈现系统包括屏幕设备，将可见图像投影到屏幕设备上的投影设备和由用户操作的激光指示器，其将激光束投影到屏幕设备上。 激光指示器包括红外光发射部分和激光束发射部分。 投影到屏幕上的红外光的投影图像由红外光感测部分感测。 投影图像和按钮点击信号的移动方向和移动距离被转换为计算机可用的鼠标数据。 基于来自计算机的鼠标数据的图像从投影仪投影到屏幕。 感测在激光束的投影方向上存在的人体的热量的人体传感器被安定以通过在操作该传感器的情况下控制激光束的投影来提供安全的呈现系统。

    Control system for oscillatory-mirror light beam deflector
    6.
    发明授权
    Control system for oscillatory-mirror light beam deflector 失效
    振荡镜光束偏转器控制系统

    公开(公告)号：US5347124A

    公开(公告)日：1994-09-13

    申请号：US077037

    申请日：1993-06-16

    Applicant: Yasunori Narukawa ,  Akinori Hamana

    Inventor： Yasunori Narukawa ,  Akinori Hamana

    IPC: G02B26/10 ,  G05B11/42 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23 ,  H01J3/14

    CPC classification number: H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04755 ,  H04N2201/04768

    Abstract: A control system for controlling an oscillatory-mirror light beam deflector such as a resonant light beam deflector with a reflecting mirror, has a drive circuit for applying a drive signal to energize the oscillatory-mirror light beam deflector, and a detector for detecting a drive condition of the oscillatory-mirror light beam deflector and producing a drive condition signal indicative of the detected drive condition. A PID processor circuit, which is composed of a proportional circuit, an integrator, and a differentiator, generates an adjusting signal from the drive condition signal produced by the detector. The differentiator has a variable resistor for varying a feedback resistance thereof. A processor processes the drive condition signal with the adjusting signal thereby to produce the drive signal.

    Abstract translation: 用于控制具有反射镜的谐振光束偏转器的振荡镜光束偏转器的控制系统具有用于施加驱动信号以激励振荡镜光束偏转器的驱动电路和用于检测驱动器的检测器 振荡镜光束偏转器的状态，并产生指示检测到的驱动条件的驱动条件信号。 由比例电路，积分器和微分器组成的PID处理器电路根据由检测器产生的驱动条件信号产生调节信号。 微分器具有用于改变其反馈电阻的可变电阻器。 处理器利用调整信号处理驱动条件信号从而产生驱动信号。

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