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24 条记录 (耗时 0.011 秒)

    OPTICAL MODULATOR
    1.
    发明公开
    OPTICAL MODULATOR 审中-公开
    光调制器

    公开(公告)号：EP1358518A1

    公开(公告)日：2003-11-05

    申请号：EP01906079.7

    申请日：2001-02-14

    申请人： 3DV Systems, Ltd.

    发明人： MANASSEN, Amnon ,  BRAUN, Ori, J. ,  YAHAV, Giora

    IPC分类号： G02F1/017

    CPC分类号： B82Y20/00 ,  G02F1/017

    摘要： Provided is an optical modulator for modulating light comprising: a superlattice structure having a plurality of interleaved narrow and wide bandgap semiconductor layers, wherein wave functions of energy states of electrons and holes in different narrow bandgap layers are coupled; and a power supply that applies voltage to the superlattice structure between a first non-zero voltage and a second non-zero voltage to modulate the light.

    SELF GATING PHOTOSURFACE
    2.
    发明公开
    SELF GATING PHOTOSURFACE 有权
    自我摸索光敏面

    公开(公告)号：EP1147370A1

    公开(公告)日：2001-10-24

    申请号：EP98960068.9

    申请日：1998-12-16

    申请人： 3DV Systems Ltd.

    发明人： BRAUN, Ori, J. ,  IDDAN, Gavriel, J. ,  YAHAV, Giora

    IPC分类号： G01C3/08

    CPC分类号： G01C3/22 ,  G01C3/08 ,  G01S7/4863 ,  G01S17/48 ,  G01S17/89 ,  G02B7/32

    摘要： A semiconductor surface is provided comprising a plurality of light sensitive pixels wherein each pixel of the plurality of pixels comprises an electronic circuit formed on or in the semiconductor surface, the circuit comprising: a photosensor that generates a signal responsive to light incident thereon at an output thereof; and circuitry that provides a signal responsive to a time lapse between a first time responsive to said signal and a reference time. There is also provided a 3D camera incorporating the semiconductor surface.

    SELF GATING PHOTOSURFACE
    3.
    发明授权
    SELF GATING PHOTOSURFACE 有权
    自我摸索光敏面

    公开(公告)号：EP1147370B1

    公开(公告)日：2009-02-25

    申请号：EP98960068.9

    申请日：1998-12-16

    申请人： 3DV Systems Ltd.

    发明人： BRAUN, Ori, J. ,  IDDAN, Gavriel, J. ,  YAHAV, Giora

    IPC分类号： G01C3/08

    CPC分类号： G01C3/22 ,  G01C3/08 ,  G01S7/4863 ,  G01S17/48 ,  G01S17/89 ,  G02B7/32

    摘要： A semiconductor surface is provided comprising a plurality of light sensitive pixels wherein each pixel of the plurality of pixels comprises an electronic circuit formed on or in the semiconductor surface, the circuit comprising: a photosensor that generates a signal responsive to light incident thereon at an output thereof; and circuitry that provides a signal responsive to a time lapse between a first time responsive to said signal and a reference time. There is also provided a 3D camera incorporating the semiconductor surface.

    3D camera for distance measurements
    4.
    发明公开
    3D camera for distance measurements 审中-公开
    3D-Kamera zur Entfernungsmessung

    公开(公告)号：EP2026035A2

    公开(公告)日：2009-02-18

    申请号：EP08169123.0

    申请日：1998-12-16

    申请人： 3DV Systems Ltd.

    发明人： Braun, Ori J. ,  Iddan, Gavriel J. ,  Yahav, Giora

    IPC分类号： G01C3/08 ,  G01C3/22 ,  G01S17/48

    CPC分类号： G01C3/22 ,  G01C3/08 ,  G01S7/4863 ,  G01S17/48 ,  G01S17/89 ,  G02B7/32

    摘要： A 3D camera for measuring distances to object points comprising a semiconductor surface having a plurality of light sensitive pixels each comprising a circuit having a photosensor, a switch and an output terminal. The circuit provides a signal on the output terminal only while light is incident on the photosensor and the switch is closed. A fan beam illuminates the object from a position of the fan beam, which position is defined by a scan angle, so that light from the fan beam is reflected by the object to the pixels. A controller controls the fan beam to illuminate the object at a plurality of scan angles of the fan beam, wherein for each scan angle the controller simultaneously closes a plurality of the switches. For a pixel that generates a pulse when the pixel's switch is closed, the controller determines a distance from the pixel to the object by triangulation responsive to the scan angle and the position of the pixel in the semiconductor surface.

    摘要翻译： 一种用于测量到物点的距离的3D照相机，包括具有多个光敏像素的半导体表面，每个光敏像素包括具有光传感器的电路，开关和输出端。 该电路仅在光线入射到光电传感器上并且开关闭合时才在输出端子上提供信号。 风扇光束从扇形光束的位置照射物体，该位置由扫描角限定，使得来自风扇光束的光被物体反射到像素。 控制器控制风扇光束以扇形束的多个扫描角照射物体，其中对于每个扫描角度，控制器同时关闭多个开关。 对于在像素开关闭合时产生脉冲的像素，控制器通过响应于半导体表面中的像素的扫描角度和位置的三角测量来确定从像素到物体的距离。

    OPTICAL PULSE STRETCHER
    5.
    发明公开
    OPTICAL PULSE STRETCHER 审中-公开
    光脉冲拖拉机

    公开(公告)号：EP1112611A1

    公开(公告)日：2001-07-04

    申请号：EP98939826.8

    申请日：1998-08-18

    申请人： 3DV Systems Ltd.

    发明人： YAHAV, Giora ,  SCHUSTER, Israel

    IPC分类号： H01S3/00 ,  G02B6/42 ,  G01S17/00

    CPC分类号： H01S3/0057 ,  G02B6/4296

    摘要： A method of producing a fast-rising, fast-falling, relatively long pulse of laser light from at least one fast-rising, fast-falling, short input pulse of laser light, comprising: providing a plurality of short laser pulses of similar amplitude and pulse width, with a substantially constant time shift between pulses that is much smaller than the pulse width; and summing the time-shifted laser pulses into a single long substantially flat pulse, having fast rise and fall times.

    Distance measurement with a camera
    6.
    发明公开
    Distance measurement with a camera 审中-公开
    通过摄像机的装置的距离测量

    公开(公告)号：EP1515541A3

    公开(公告)日：2008-07-23

    申请号：EP04077863.1

    申请日：1998-09-28

    申请人： 3DV Systems Ltd.

    发明人： Iddan, Gavriel J. ,  Yahav, Giora ,  Braun, Ori J.

    IPC分类号： H04N3/15

    CPC分类号： G01S17/89 ,  G01S7/4863 ,  G01S17/08 ,  G01S17/105 ,  G01S17/107 ,  H04N5/2226 ,  H04N5/2256 ,  H04N5/361 ,  H04N5/374 ,  H04N5/3745 ,  H04N13/207 ,  H04N13/254

    摘要： A photosurface comprising a plurality of light sensitive pixels, wherein each pixel of the plurality of pixels comprises an electronic circuit, each of the circuits comprising: a light sensitive element that provides a current responsive to light incident thereon; at least one amplifier having an input and an output; a feedback capacitor having first and second terminals connected respectively to the input and output of the at least one amplifier by a plurality of switches, which switches are controllable to reverse the connections of the capacitor such that the second and first terminals are connected respectively to the input and output of the at least one amplifier respectively; and at least one additional switch that connects the light sensitive element to the input of the amplifier, wherein when the additional switch is closed, the pixel is on and current provided by the light sensitive element flows into the amplifier input.

    SOLID STATE OPTICAL SHUTTER
    8.
    发明授权
    SOLID STATE OPTICAL SHUTTER 失效
    光固封

    公开(公告)号：EP0985234B1

    公开(公告)日：2005-03-30

    申请号：EP97914537.2

    申请日：1997-04-08

    申请人： 3DV Systems Ltd.

    发明人： YAHAV, Giora ,  IDDAN, Gavriel, J.

    IPC分类号： H01L31/153

    CPC分类号： H01L31/143

    摘要： A solid-state optoelectronic shutter having an input and an output, comprising a semiconductor material, having formed therein or thereon: a planar photodiode (24), having a planar surface, and optically communicating with the input; a planar LED layer (26), having a planar surface substantially parallel to the planar photodiode, and optionally communicating with the output; and a planar gate layer (28), intermediate the planar photodiode and the planar LED.