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1. 发明授权

US6052100A Computer controlled three-dimensional volumetric display 失效
标题翻译：电脑控制三维体积显示
公开(公告)号：US6052100A
公开(公告)日：2000-04-18
申请号：US926854
申请日：1997-09-10
申请人： Parviz Soltan , John A. Trias , Weldon J. Dahlke , Robert V. Belfatto , Frank Sanzone , Christopher J. Poulos , Neil P. Acantilado
发明人： Parviz Soltan , John A. Trias , Weldon J. Dahlke , Robert V. Belfatto , Frank Sanzone , Christopher J. Poulos , Neil P. Acantilado
IPC分类号： G02B27/22 , G09G3/00 , H04N13/00 , G09G5/00
CPC分类号： H04N13/0493 , G02B27/2285 , G09G3/003 , G09G3/025 , H04N13/0055 , H04N13/0497 , H04N13/0048 , H04N13/0051 , H04N13/0059 , H04N13/0285 , H04N13/0422 , H04N13/0459 , H04N19/597
摘要： A three dimensional display system comprises a display volume selectively partitioned into distinct display regions, a display surface for scattering light beams from the display volume, at least two optical scanners for modulating the light beams and for directing the light beams to the display surface within each distinct display region respectively, and a display controller. The display controller comprises a world coordinate interface for inputting world coordinates, a data processor for transforming the world coordinates into view coordinates and device coordinates, and an optical scanner controller for sensing and controlling the motion of the display surface and for outputting the device coordinates to the optical scanners to generate a three dimensional image within the display volume.
摘要翻译：三维显示系统包括选择性地划分为不同的显示区域的显示体积，用于散射来自显示体积的光束的显示表面，至少两个光学扫描器，用于调制光束并将光束引导到每个不同的显示区域和显示控制器。显示控制器包括用于输入世界坐标的世界坐标界面，用于将世界坐标变换为视图坐标和设备坐标的数据处理器，以及用于感测和控制显示表面的运动并将设备坐标输出到光学扫描仪在显示体积内产生三维图像。

2. 发明授权

US5854613A Laser based 3D volumetric display system 失效
标题翻译：基于激光的3D体积显示系统
公开(公告)号：US5854613A
公开(公告)日：1998-12-29
申请号：US687091
申请日：1996-05-31
申请人： Parviz Soltan , John A. Trias , Weldon J. Dahlke , Robert V. Belfatto , Frank Sanzone
发明人： Parviz Soltan , John A. Trias , Weldon J. Dahlke , Robert V. Belfatto , Frank Sanzone
IPC分类号： G02B27/22 , G09G3/00 , H04N13/00 , C09G3/00
CPC分类号： H04N13/0493 , G02B27/2285 , G03B21/562 , G09G3/003 , G09G3/025 , H04N13/0055 , H04N13/0497 , H04N13/0048 , H04N13/0051 , H04N13/0059 , H04N13/0285 , H04N13/0422 , H04N13/0459
摘要： A system for generating three dimensional images includes a data processor which generates a first data stream representing coordinates along a first axis, a second data stream representing coordinates along a second axis, and a third data stream representing intensities of optical beams. A demultiplexer transforms the first, second, and third data streams into multiple control signals each comprised of elements of the first, second and third data streams. The system further includes an optical energy source for generating an optical signal, and an optical beam steering system which divides the optical signal into multiple optical beams which are individually deflected and intensity modulated under the control of one of the control signals. The optical beams then are recombined and steered to reflect off the reflecting surface of a reflective structure, resulting in the presentation of a 3D image.
摘要翻译：一种用于产生三维图像的系统包括：数据处理器，其生成表示沿着第一轴的坐标的第一数据流，表示沿着第二轴的坐标的第二数据流，以及表示光束强度的第三数据流。解复用器将第一，第二和第三数据流变换成由第一，第二和第三数据流的元素组成的多个控制信号。该系统还包括用于产生光信号的光能源，以及光束转向系统，其将光信号分成多个光束，这些光束在控制信号之一的控制下被单独地偏转和强度调制。然后，光束被重组和转向以反射出反射结构的反射表面，导致3D图像的呈现。

3. 发明授权

US5621561A Laser scanner incorporating variable focus mechanism for rapidly changing beam spot size 失效
标题翻译：激光扫描仪采用可变焦点机制，快速变化的光斑尺寸
公开(公告)号：US5621561A
公开(公告)日：1997-04-15
申请号：US339501
申请日：1994-11-14
申请人： Robert V. Belfatto , Gregory O. Makhov , William R. Benner, Jr.
发明人： Robert V. Belfatto , Gregory O. Makhov , William R. Benner, Jr.
IPC分类号： G02B26/10 , G02B27/09 , G02B26/08
CPC分类号： G02B26/101 , G02B27/09
摘要： An apparatus for rapidly varying the spot size of a scanned imaging laser beam comprises a focusing device (e.g. focussing and collimating lens arrangement) and a beam displacement control device (e.g. a rotary actuator scanner mirror or linear actuator). The beam displacement control device is operative to cause relative displacement between the laser beam and a selected one of a plurality of reflector element positions. Respective ones of the plurality of reflector positions are located at respectively different separation distances from the focusing device. As a result, in the course of traveling along an laser beam path, the laser beam is incident upon the focusing device and the reflector element, so as to be directed to a given spatial location along the path, whereby the laser beam has a resultant beam width that is dependent upon the separation distance between the selected reflector element position and the focusing device.
摘要翻译：用于快速改变扫描成像激光束的光斑尺寸的装置包括聚焦装置（例如聚焦和准直透镜装置）和光束位移控制装置（例如，旋转致动器扫描器反射镜或线性致动器）。光束位移控制装置可操作以引起激光束与多个反射器元件位置中选定的一个之间的相对位移。多个反射器位置中的各个反射器位置分别位于与聚焦装置分开不同的间隔距离处。结果，在沿着激光束路径行进的过程中，激光束入射到聚焦装置和反射器元件上，以沿着路径被引导到给定的空间位置，由此激光束具有结果光束宽度取决于所选择的反射器元件位置和聚焦装置之间的间隔距离。

4. 发明授权

US4266201A Method and apparatus using first and second parallel channels, one of which includes an inverter, for producing an electrical signal with an improved on/off ratio 失效
标题翻译：使用第一和第二并行通道的方法和装置，其中之一包括逆变器，用于产生具有改善的开/关比的电信号
公开(公告)号：US4266201A
公开(公告)日：1981-05-05
申请号：US23350
申请日：1979-03-23
申请人： Robert V. Belfatto
发明人： Robert V. Belfatto
IPC分类号： G01S7/282 , H03K7/02 , H03K7/00
CPC分类号： G01S7/282 , H03K7/02
摘要： In certain types or electrical systems such as pulse modulators, it is extremely important that the systems have a high on/off ratio. To accomplish this, an electrical system is provided having first and second channels coupled in parallel to a frequency source. If the system is a pulse modulator, the first channel is the pulse modulation channel, and includes a first combining means coupled to the carrier frequency source and a modulation input pulse source to produce a pulse modulated output signal with "on" and "off" periods. The second channel includes a second combining means which is coupled to the carrier frequency source and a constant voltage signal to produce a continuous output signal. An inverter is provided in one of the channels to invert the carrier frequency signal going to one of the combining means. The outputs of the first and second combining means are then combined by an addition such that the continuous output signal of the second combining means is effectively subtracted from the pulse modulated output signal of the first combining means during both the "on" and "off" periods of the pulse modulated output signal due to the inversion in one of the channels. This allows for significant reduction of the undesired output signal of the first combining means caused by imbalance in the first combining means during the "off" period. And, it only causes a negligible reduction of the desired output signal during the "on" period.
摘要翻译：在诸如脉冲调制器的某些类型或电气系统中，系统具有高的开/关比非常重要。为了实现这一点，提供了具有与频率源并联耦合的第一和第二通道的电气系统。如果系统是脉冲调制器，则第一通道是脉冲调制通道，并且包括耦合到载波频率源的第一组合装置和调制输入脉冲源，以产生具有“开”和“关”的脉冲调制输出信号时期。第二通道包括耦合到载波频率源的第二组合装置和恒定电压信号以产生连续的输出信号。在一个通道中设置一个反相器，以反转到组合装置之一的载波频率信号。然后通过加法组合第一和第二组合装置的输出，使得在“开启”和“关闭”两者期间，第二组合装置的连续输出信号被有效地从第一组合装置的脉冲调制输出信号中减去，脉冲调制输出信号的周期由于其中一个通道中的反转。这允许在“关闭”时段期间由于第一组合装置的不平衡而引起的第一组合装置的不需要的输出信号的显着减少。而且，在“开”期间，它只会导致所需输出信号的微小的减少。

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