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11. 发明申请

US20100002273A1 Segmented Reflective Optical System 有权
标题翻译：分段反射光学系统
公开(公告)号：US20100002273A1
公开(公告)日：2010-01-07
申请号：US12375121
申请日：2006-07-26
申请人： Jack H. Schmidt , John Herman Arterberry , Dennis J. Schissler , Mark W. Majette
发明人： Jack H. Schmidt , John Herman Arterberry , Dennis J. Schissler , Mark W. Majette
IPC分类号： H04N1/04 , B32B37/12 , B32B37/02 , H01L31/0232 , G02B5/10
CPC分类号： B23P15/008 , H04N1/03 , H04N1/0305 , H04N1/1934 , H04N1/1935 , H04N2201/02439 , H04N2201/02466 , Y10T29/49826 , Y10T156/10
摘要： An optical system, used for scanning, forms an image using reflective optical surfaces. The system may be telecentric, and may form an image that is reduced in size as compared with the scanned original. Several image-forming optical channels may be combined to form a page-wide scanning array.
摘要翻译：用于扫描的光学系统使用反射光学表面形成图像。系统可以是远心的，并且可以形成与扫描的原稿相比尺寸减小的图像。可以组合几个成像光学通道以形成页面扫描阵列。

12. 发明授权

US6088134A Swath scanning system using an optical imager 失效
标题翻译：扫描扫描系统使用光学成像仪
公开(公告)号：US6088134A
公开(公告)日：2000-07-11
申请号：US665777
申请日：1996-06-17
申请人： Jack H. Schmidt
发明人： Jack H. Schmidt
IPC分类号： H04N1/028 , G02B13/22 , G02B17/08 , H04N1/03 , H04N1/04 , G01B9/04 , G02B26/08 , G02B3/02
CPC分类号： G02B17/0856 , G02B13/22 , G02B17/008 , G02B17/0812 , H04N1/03 , H04N1/0303 , H04N2201/02456
摘要： The invention is a system for scanning a document. A light source illuminates the document; an imager receives light from the document and directs it toward a detector array which produces a corresponding array of electrical signals. The imager has several optical properties that are useful either individually or in combination. The imager is telecentric and thereby ensures that image size and magnification are insensitive to object displacement along the optical axis and image brightness is uniform independent of object off-axis distance. An aspheric element within the imager balances focus variation within the depth of field with spherical aberration and thereby provides nearly uniform image resolution. A diffraction pattern, carried by the imager, corrects for spectral dispersion which occurs when light passes from air into a refractive material. An imager with a reflecting surface provides a system that is subject to little or no chromatic aberration. A solid imager with multiple internal reflecting surfaces in optical series, configured to include the previously mentioned optical properties, also provides for highly stable alignment of reflecting surfaces.
摘要翻译：本发明是用于扫描文档的系统。光源照亮文件; 成像器从文件接收光并将其引导到产生相应阵列的电信号的检测器阵列。成像仪具有几种光学性质，可单独使用或组合使用。成像器是远心的，从而确保图像尺寸和放大倍数对沿着光轴的物体位移不敏感，并且图像亮度均匀，独立于物体离轴距离。成像器内的非球面元件平衡了具有球面像差的景深内的焦点变化，从而提供几乎均匀的图像分辨率。由成像仪携带的衍射图案校正当光从空气进入折射材料时发生的光谱色散。具有反射表面的成像器提供了受到很少或没有色差的系统。具有配置为包括前述光学性质的光学系列中具有多个内部反射表面的固体成像器还提供反射表面的高度稳定的对准。

13. 发明授权

US5576854A Liquid crystal light valve projector with improved contrast ratio and with 0.27 wavelength compensation for birefringence in the liquid crystal light valve 失效
标题翻译：液晶光阀投影机具有改善的对比度和0.27波长补偿双折射液晶光阀
公开(公告)号：US5576854A
公开(公告)日：1996-11-19
申请号：US152996
申请日：1993-11-12
申请人： Jack H. Schmidt , Ned Nestorovic , Rodney D. Sterling , Joseph M. Haggerty , Javier A. Ruiz , Robert Edwards , Roger Hollister
发明人： Jack H. Schmidt , Ned Nestorovic , Rodney D. Sterling , Joseph M. Haggerty , Javier A. Ruiz , Robert Edwards , Roger Hollister
IPC分类号： G02F1/13 , G02F1/133 , G02F1/1333 , G02F1/1335 , G02F1/13363 , G02F1/135 , G03B21/00
CPC分类号： G02F1/133385 , G02F1/1333 , G02F1/133528 , G02F1/135 , G02F2001/133638
摘要： In a liquid crystal light valve projector, a quarter-wave compensator plate is disposed between a polarization plate and a liquid crystal light valve to compensate for polarization irregularities induced by the off-incident reflections in the cone of light projected onto the LCLV. The quarter-wave compensation plate reverses the phase of the P component of said illumination light with respect to said compensator plate by 180.degree. thereby eliminating P-polarization leakage during the dark state of an LCLV projector. The invention also combines the compensator plate with a heat shield and a low stress-optical coefficient counter electrode substrate to reduce the birefringence of the LCLV thereby also minimizing leakage of P-polarized light onto the projection screen during the dark state of the projector.
摘要翻译：在液晶光阀投影机中，在偏振板和液晶光阀之间设置四分之一波长的补偿板，以补偿投射到LCLV上的光的入射反射引起的偏振不均匀。四分之一波长补偿板将所述照明光的P分量相对于所述补偿板的相位反转180度，从而消除LCLV投影仪暗处的P极化泄漏。本发明还将补偿板与隔热板和低应力光学系数对电极基板结合起来，以减少LCLV的双折射，从而也可以在投影机的黑暗状态期间最小化P偏振光到投影屏幕上的泄漏。

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