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公开(公告)号：US06643390B1
公开(公告)日：2003-11-04
申请号：US09553468
申请日：2000-04-19
IPC分类号： G06K900
CPC分类号： G06K9/00046
摘要： A compact, low-cost finger imager, to be used for enrolling and recognizing individuals based upon their finger ridge patterns. The optical system employs viewing beyond the critical angle and darkfield illumination for maximum image contrast. The optical system is afocal and telecentric, achieving corrected distortion with oblique viewing.
摘要翻译： 一种紧凑，低成本的手指成像器，用于根据他们的手指脊图案招募和识别个人。 光学系统采用超越临界角度和暗场照度的视野，以获得最大的图像对比度。 光学系统无焦点和远心，通过倾斜观察实现校正的失真。
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公开(公告)号：US6097552A
公开(公告)日：2000-08-01
申请号：US323186
申请日：1999-05-27
CPC分类号： B41J2/442 , G11B7/0927
摘要： An actuator device for providing a focusing mechanism in an optical printer or optical recording device. The focusing optics are housed in a lens barrel which is maintained in position within a cylindrical winding of electrical wire by means of two diaphragm springs at the ends of the barrel. Movement of the barrel and the optics is affected by passing a current through the cylindrical winding to produce a longitudinal force on a permanent magnet secured to the lens barrel.
摘要翻译： 一种用于在光学打印机或光学记录装置中提供聚焦机构的致动器装置。 聚焦光学器件容纳在镜筒中，该镜筒通过在镜筒端部的两个膜片弹簧保持在电线的圆柱形绕组内的适当位置。 通过使电流通过圆柱形绕组以在固定到镜筒上的永磁体上产生纵向力，影响镜筒和光学元件的运动。
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33.发明授权
公开(公告)号：US5652612A
公开(公告)日：1997-07-29
申请号：US599871
申请日：1996-02-12
申请人： Carl A. Chiulli , Yalan Mao , William T. Plummer
发明人： Carl A. Chiulli , Yalan Mao , William T. Plummer
CPC分类号： H04N1/0635 , B41J2/442 , H04N1/04 , H04N1/0607 , H04N1/23
摘要： Apparatus and methods for exposing multilayered thermal imaging by proper optimization of the exposing radiation angle of incidence of a coherent radiation source to eliminate "cloud" or "woodgrain" artifacts stemming from local differences in printing efficiency across a sheet of the multilayered imaging media. A media is mounted to an exposure surface and exposed with a scanning coherent Gaussian laser beam at an angle other than normal incidence. The angle of incidence of the exposing beam is intentionally made large enough so that all rays with high reflectance loss are paired with equally many with low reflectance loss to increase printing efficiency. This efficiency occurs over a range of angles between 21 and 25 degrees, with some benefit beginning at 16 degrees.
摘要翻译： 通过适当优化相干辐射源的暴露辐射入射角来消除多层热成像的装置和方法，以消除由多层成像介质片上的印刷效率的局部差异引起的“云”或“木纹”伪影。 将介质安装到曝光表面并以除正常入射之外的角度以扫描相干高斯激光束曝光。 有意地使曝光光束的入射角变得足够大，使得具有高反射率损失的所有光线与低反射率损失相同地配对，以提高打印效率。 这种效率发生在21到25度之间的角度范围内，从16度开始有一些好处。
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34.发明授权Magnetic recording media and servo systems using light-transmitting optical gratings 失效使用光传输光栅的磁记录介质和伺服系统
公开(公告)号：US4816939A
公开(公告)日：1989-03-28
申请号：US898527
申请日：1986-08-21
CPC分类号： G11B5/59677 , G11B5/82
摘要： Magnetic recording media, and magnetic recording systems using such media, are disclosed which incorporate a light-transmitting optical grating at least substantially coextensive with the magnetic recording area. A second light-transmitting optical grating is associated with the magnetic transducer or read/write head. A moire pattern is produced by light transmitted through both optical gratings, and changes in the moire pattern resulting from changes in the alignment of the optical gratings resulting from movement of the read/write head relative to the media are utilized to provide servo information to keep the magnetic transducer aligned with the magnetic track.Higher magnetic recording capacities may be obtained using such media and systems, since none of the magnetic recording area is used for servo information.
摘要翻译： 公开了使用这种介质的磁记录介质和磁记录系统，其包括与磁记录区域至少基本共同延伸的透光光栅。 第二透光光栅与磁换能器或读写头相关联。 通过两个光栅传输的光产生莫尔图案，并且利用由读/写头相对于介质的移动导致的光栅的对准改变导致的莫尔图案的变化，以提供伺服信息以保持 磁传感器与磁道对准。 使用这种介质和系统可以获得更高的磁记录容量，因为磁记录区域不用于伺服信息。
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公开(公告)号：US4806034A
公开(公告)日：1989-02-21
申请号：US154302
申请日：1988-02-10
申请人： William T. Plummer
发明人： William T. Plummer
CPC分类号： H04N1/0678 , G01D5/264 , G01D5/36 , H04N1/047 , H04N1/06 , H04N2201/04729 , H04N2201/04731 , H04N2201/04789 , H04N2201/04791
摘要： A system for precisely positioning a printing element relative to a rotating drum, as in a drum printer, employs two position signals for alignment purposes. A pair of linear grids is disposed along a path of travel of the printing element for generating, with the aid of optical beam and sensor devices, a periodic electric signal which varies in accordance with printing element position. One of the grids is stationary and the second of the grids moves with a carriage supporting the printing element. An encoder positioned alongside the drum is operative with a set of markings having a variation in spatial frequency, or a grid overlay, to produce an alternating electric signal which varies in accordance with rotational position of the drum. Motors which rotate the drum as well as a lead screw which translates the printing element may be constructed as synchronous motors to permit phase locking to each other. Circuitry responsive to periodic signals outputtd by the linear grids and the encoder introduce phase shift between motor drive signals to align position of the printing element with position of the drum independently of any backlash which may be present between the lead screw and the carriage driven by the lead screw.
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公开(公告)号：US4701045A
公开(公告)日：1987-10-20
申请号：US822852
申请日：1986-01-27
申请人： William T. Plummer
发明人： William T. Plummer
IPC分类号： G03B27/72
CPC分类号： G03B27/725
摘要： There is disclosed a process and apparatus by which the energy distribution of preselected areas of illumination is altered by diffusion so as to minimize the visual effects of artifacts on image recording material.
摘要翻译： 公开了一种方法和装置，其中通过扩散改变预选区域的预选区域的能量分布，以便最小化伪像对图像记录材料的视觉效果。
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公开(公告)号：US4689005A
公开(公告)日：1987-08-25
申请号：US806426
申请日：1985-12-09
申请人： William T. Plummer
发明人： William T. Plummer
CPC分类号： B29C45/0416 , B29C45/26 , B29C45/40 , B29D11/00663 , B29D11/0075 , G02B6/322 , G02B6/3865 , Y10S425/808
摘要： Apparatus for forming miniaturized optical components such as fiber optics connector terminals in which a three-part mold set is employed to attain precise concentricity of mold cavity formations carried by two of the three mold parts which are movable axially relative to and positioned by the third or central one of the three parts. The two movable parts are each located by oppositely diverging frustoconical reference surfaces on the central part and include mold surface components which are axially positionable relative to the parts in which they are carried. The central part is supported by a shuttle for movement between a molding position and an ejection position, appropriate ejection pins being located in spaced relation to the molding position so as not to interfere with the molding operation. Precise concentricity and axial location of the three mold parts is effected in substantial measure by application of a mold closing force exclusively along the common axis of the three parts and under a force limited to a pre-established value.
摘要翻译： 用于形成诸如光纤连接器端子的小型化光学部件的装置，其中使用三部分模具组来实现三个模具部件中的两个模具部件承载的模腔形成的精确同心度，这三个模具部件可相对于第三或 中央三部分之一。 两个可移动部分各自位于中心部分上的相反发散的截头圆锥形参考表面，并且包括相对于它们被携带的部分可轴向定位的模具表面部件。 中心部分由穿梭件在模制位置和排出位置之间移动，适当的排出销以与模制位置成间隔开的关系来支撑，从而不会干扰模制操作。 三个模具部件的精确的同心度和轴向位置在很大程度上通过仅沿着三个部分的公共轴线施加闭合力并且受限于预定值的力来实现。
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公开(公告)号：US4681451A
公开(公告)日：1987-07-21
申请号：US834532
申请日：1986-02-28
申请人： John M. Guerra , William T. Plummer
发明人： John M. Guerra , William T. Plummer
CPC分类号： G11B5/6005 , G01B11/306
摘要： An optical proximity imaging method and apparatus in which the proximity of glass surface to another surface is determined by frustration of total internal reflection of light energy from the glass surface to develop a light area pattern, calibrating gray scale densities of the pattern so that levels of density correspond to increments of surface proximity, and displaying a facsimile of the gray scale image to indicate variations in surface proximity. The pattern of frustrated totally reflected light energy is preferably magnified and the magnified image recorded by a television camera, the output of which is fed, in a preferred embodiment, to an oscilloscope capable of displaying a three axis image in which one of the three axes is determined by variation in gray scale density. In another embodiment, the output of the television camera is fed through a colorizer to assign different colors to different gray scale densities and a colored facsimile of the pattern image presented on a CRT screen.
摘要翻译： 一种光学邻近成像方法和装置，其中玻璃表面与另一表面的接近度由来自玻璃表面的光能的全内反射的挫败来确定以形成光区域图案，校准图案的灰度密度， 密度对应于表面接近度的增量，并且显示灰度图像的传真以指示表面接近度的变化。 优选地，放大了沮丧的全反射光能量的图案，并且在优选实施例中，由其输出的电视摄像机记录的放大图像能够显示三轴图像的示波器，其中三个轴之一 由灰度密度的变化决定。 在另一个实施例中，电视摄像机的输出通过着色器馈送以分配不同的颜色到不同的灰度密度和呈现在CRT屏幕上的图案图像的彩色传真。
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公开(公告)号：US4561753A
公开(公告)日：1985-12-31
申请号：US711176
申请日：1985-03-13
CPC分类号： G03B7/28
摘要： A photosensor arrangement for providing an exposure influencing control signal in a photographic camera apparatus includes a photosensor array wherein the exposure influencing control signal comprises an average of the output signals from all the photosensors in the array excepting the output signals from those photosensors in the array which detect the highest and lowest scene light intensities.
摘要翻译： 用于在照相机装置中提供影响控制信号的曝光的光传感器装置包括光电传感器阵列，其中影响曝光的控制信号包括来自阵列中的所有光电传感器的输出信号的平均值，除了阵列中那些光电传感器的输出信号， 检测最高和最低场景光强度。
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公开(公告)号：US4499164A
公开(公告)日：1985-02-12
申请号：US606580
申请日：1984-05-03
申请人： William T. Plummer
发明人： William T. Plummer
CPC分类号： G03C8/52 , G03C1/76 , Y10S430/151 , Y10T428/31
摘要： An optical barrier layer for use in reflection type image carrying media of the type wherein a thin transparent image receiving layer includes an image which is viewed through one side of the image receiving layer with ambient light that is reflected from a light scattering layer located on the other side of the image-receiving layer. The optical barrier layer is a thin, transparent layer located between the image receiving layer and the light scattering layer and operates to minimize nonlinear density effects of multiple internal reflections.
摘要翻译： 一种用于这种类型的反射型图像承载介质的光学阻挡层，其中薄的透明图像接收层包括通过从位于图像接收层的光散射层反射的环境光观察的图像 图像接收层的另一侧。 光阻挡层是位于图像接收层和光散射层之间的薄的透明层，并且操作以最小化多个内部反射的非线性密度效应。
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