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1. 发明授权

US5822127A Low-cost light-weight head-mounted virtual-image projection display with low moments of inertia and low center of gravity 失效
标题翻译：低成本重量轻的头戴式虚拟投影显示屏，具有低转动惯量和低重心
公开(公告)号：US5822127A
公开(公告)日：1998-10-13
申请号：US826856
申请日：1997-04-11
申请人： Chungte W. Chen , Uzi Efron , Arthur N. Chester
发明人： Chungte W. Chen , Uzi Efron , Arthur N. Chester
IPC分类号： G02B27/00 , G02B27/01 , G09B9/36 , G02B27/14
CPC分类号： G02B27/0172 , G09B9/36 , A42B3/042 , G02B2027/011 , G02B2027/0132 , G02B2027/0138
摘要： A head-mounted display device (10) offers light weight, a low center of gravity, and low moments of inertia about the azimuthal and elevational axes of head movement. The display device (10) employs an angulated beam splitter mirror (16) disposed between a user's (22) eye (20) and an inner combiner surface (18a) of a visor (28). A projector (36) is carried laterally of the user's eye with a low center of gravity and a position close to the horizontal axis of elevational movement of the head. This projector (36) includes an image source (12) and an compact light-weight relay optics module (14) along with a projection fold mirror (30) disposed at eye level and laterally of the beam splitter mirror (16) to project image light to the beam splitter mirror (16). The beam splitter mirror (16) reflects the light onto the inner surface (18a) of the combiner (18) for reflection back through the beam splitter mirror (16) and to the user's eye (20). Alternative embodiments provide for color correction, or for monochrome image projection at even lighter weight. An alternative embodiment provides for both color correction and a weight nearly as light as the monochrome version by use of diffractive lenses in the relay optics module.
摘要翻译：头戴式显示装置（10）提供重量轻，重心低，围绕磁头运动的方位和高度轴的低转动惯量。显示装置（10）使用设置在用户（22）眼睛（20）和面罩（28）的内部组合器表面（18a）之间的角度分束镜（16）。投影仪（36）以低重心和靠近头部高度运动的水平轴的位置在使用者眼睛的侧面上承载。该投影仪（36）包括图像源（12）和紧凑型重量轻的中继光学模块（14）以及设置在分光镜（16）的眼睛水平和横向的投影折射镜（30），以投影图像光束分束镜（16）。分束镜（16）将光反射到组合器（18）的内表面（18a）上，用于通过分束镜（16）反射回用户的眼睛（20）。替代实施例提供颜色校正，或者以更轻的重量提供单色图像投影。替代实施例通过使用中继光学模块中的衍射透镜来提供颜色校正和与单色版本几乎相同的重量。

2. 发明申请

US20080042042A1 Beam director and control system for a high energy laser within a conformal window 有权
标题翻译：光束控制系统在保形窗内的高能激光器
公开(公告)号：US20080042042A1
公开(公告)日：2008-02-21
申请号：US11505271
申请日：2006-08-16
申请人： William B. King , Chungte W. Chen , Robert W. Byren , Chaunchy F. McKearn
发明人： William B. King , Chungte W. Chen , Robert W. Byren , Chaunchy F. McKearn
IPC分类号： G01J1/20
CPC分类号： F41H13/005 , G01S17/66 , G02B5/32 , G02B17/0884 , G02B23/06 , G02B26/06 , G02B26/0825 , H01S3/005
摘要： A beam control system and method. The system includes an illuminator for providing a first beam of electromagnetic energy at a first wavelength; a source for providing a second beam of electromagnetic energy at a second wavelength; and an arrangement for compensating wavefront errors in the second beam using a bias representative of a comparison between the first wavelength and the second wavelength. In the illustrative embodiment, the arrangement includes a processor which corrects wavefront errors using a bias representative of a difference between said first wavelength and said second wavelength. In the disclosed application, a target wavefront sensor is included and the laser is a high-energy laser beam. The wavefront errors include a chromatic aberration and the errors are compensated using a deformable mirror and a correction algorithm executed by an adaptive optics processor. In one alternative embodiment, the errors are compensated using an optical aberration corrector. The aberration corrector may be a holographic optical element or other suitable device. In another alternative embodiment, the errors are corrected with the above embodiment in combination with the use of “woofer” and “tweeter” correcting elements with the woofer being a long stroke low frequency element and the tweeter being a short stroke high frequency element.
摘要翻译：梁控制系统及方法。该系统包括用于在第一波长处提供第一电磁能束的照明器; 用于在第二波长处提供第二电磁能束的源; 以及用于使用表示第一波长和第二波长之间的比较的偏置来补偿第二波束中的波前误差的装置。在说明性实施例中，该装置包括处理器，其使用表示所述第一波长和所述第二波长之间的差的偏置来校正波前误差。在所公开的应用中，包括目标波前传感器，激光是高能激光束。波前误差包括色差，并且使用可变形反射镜和由自适应光学处理器执行的校正算法来补偿误差。在一个替代实施例中，使用光学像差校正器补偿误差。像差校正器可以是全息光学元件或其它合适的器件。在另一替代实施例中，通过使用“低音扬声器”和“高音扬声器”校正元件与低音扬声器是长行程低频元件并且高音单元是短行程高频元件结合使用上述实施例来校正错误。

3. 发明授权

US06693749B2 Low-observability, wide-field-of-view, situation awareness viewing device 有权
标题翻译：低可观察性，广视野，情景观察装置
公开(公告)号：US06693749B2
公开(公告)日：2004-02-17
申请号：US09774495
申请日：2001-01-31
申请人： William B. King , Chungte W. Chen , Ronald G. Hegg , John E. Gunther , Richard W. Nichols
发明人： William B. King , Chungte W. Chen , Ronald G. Hegg , John E. Gunther , Richard W. Nichols
IPC分类号： G02B2714
CPC分类号： G02B27/0172 , G02B5/30
摘要： A situation awareness viewing device, typically in the form of a head-mounted display device, includes a polarizing beam splitter made of a cube of a material transparent to light and having an index of refraction greater than 1, and a wire grid polarizer lying within the cube on a cube-diagonal plane extending between two diagonally opposed edges of the cube. The polarizing beam splitter has a first optical axis extending from a first face of the cube toward an opposing second face of the cube and lying at an angle of 45 degrees to the cube-diagonal plane, and a second optical axis extending from a third face of the cube toward an opposing fourth face of the cube and lying at an angle of 45 degrees to the cube-diagonal plane, the second optical axis being perpendicular to the first optical axis. The device further includes an external polarizer external to the cube on the first optical axis and disposed to intercept light incident upon the first face along the first optical axis, an image source external to the cube and disposed to send a display image incident upon the third face along the second optical axis, a quarter-wave plate external to the cube and disposed to intercept a beam of light traveling along the second optical axis and passing out of the cube through the fourth face, and a mirror external to the cube and disposed to reflect light passing through the quarter-wave plate back through the quarter-wave plate and to the fourth face.
摘要翻译：通常为头戴式显示装置形式的状况感知观察装置包括由透明至光并具有大于1的折射率的材料的立方体制成的偏振分束器，并且线偏振器位于立方体对角平面上的立方体在立方体的两个对角线相对的边缘之间延伸。偏振光束分离器具有第一光轴，该第一光轴从立方体的第一面向立方体的相对的第二面延伸，并且与立体对角线平面成45度的角度，第二光轴从第三面延伸所述立方体朝向所述立方体的相对的第四面并且与所述立方体对角线平面成45度的角度，所述第二光轴垂直于所述第一光轴。该装置还包括位于第一光轴上的立方体外部的外部偏振器，并设置成沿着第一光轴截取入射在第一面上的光，该立方体外部的图像源，并且被布置成发送入射到第三光轴上的显示图像沿着第二光轴的一个四边形波片，在该立方体的外侧设置成拦截沿第二光轴行进的光束，并且通过该第四面从该立方体流出;以及一个在该立方体外面的镜子，以将通过四分之一波片的光反射回四分之一波片和第四面。

4. 发明授权

US06670596B2 Radiometry calibration system and method for electro-optical sensors 有权
标题翻译：电光传感器的辐射度校准系统和方法
公开(公告)号：US06670596B2
公开(公告)日：2003-12-30
申请号：US09923162
申请日：2001-08-06
申请人： Cheng-Chih Tsai , Chungte W. Chen
发明人： Cheng-Chih Tsai , Chungte W. Chen
IPC分类号： H01L2700
CPC分类号： H04N5/3653 , G01J5/52 , H04N5/33
摘要： A system (100) and method for focal plane array calibration using an internal non-uniform calibration source (30). In the illustrative embodiment, the system (100) includes a first mechanism (16) for calculating a relative gain of each detector element in the focal plane array (20) relative to at least one reference element, a second mechanism (17) for obtaining the absolute gain of the reference element, and a third mechanism (18) for calculating the absolute gains for all other detector elements using the relative gains in conjunction with the absolute gain of the reference element. The relative response of each pixel is calculated from measurements of the response of each pixel using an internal calibration source (30) at two or more different source positions, and two illumination intensities at each position. Measurements using a pair of source positions separated by k pixels establishes the relative response of the ith pixel with respect to the (i+k)th pixel. Through this recursive relationship and other pairs of source position with a different shift vector k, the relative response of every pixel in the FPA can be established. Then, the absolute radiometric calibration of at least one reference pixel is accomplished using a known external source (40), such as a star. The absolute response calibration of each pixel can then be obtained using the recursive relationship in combination with the reference pixels.
摘要翻译：一种使用内部非均匀校准源（30）进行焦平面阵列校准的系统（100）和方法。在说明性实施例中，系统（100）包括：第一机构（16），用于相对于至少一个参考元件计算焦平面阵列（20）中的每个检测器元件的相对增益;第二机构（17），用于获得参考元件的绝对增益，以及第三机构（18），用于使用结合参考元件的绝对增益的相对增益计算所有其它检测器元件的绝对增益。使用在两个或更多个不同源位置处的内部校准源（30）和每个位置处的两个照明强度的每个像素的响应的测量来计算每个像素的相对响应。使用由k个像素分隔的一对源位置的测量建立了第i个像素相对于第（i + k）个像素的相对响应。通过这种递归关系和其他具有不同移位矢量k的源位置对，可以建立FPA中每个像素的相对响应。然后，使用已知的外部源（40）（诸如星形）来实现至少一个参考像素的绝对辐射校准。然后可以使用与参考像素组合的递归关系来获得每个像素的绝对响应校准。

5. 发明授权

US06563654B2 External pupil lens system 有权
公开(公告)号：US06563654B2
公开(公告)日：2003-05-13
申请号：US09834580
申请日：2001-04-12
申请人： Chungte W. Chen , Ronald G. Hegg , William B. King
发明人： Chungte W. Chen , Ronald G. Hegg , William B. King
IPC分类号： G02B904
CPC分类号： G02B27/4211 , G02B27/0037
摘要： An external pupil lens system (200) with an entrance pupil distance at least three times that of the effective focal length. The lens system is comprised of several conventional lenses and a diffractive optical element (DOE) for secondary chromatic aberration correction. In the illustrative embodiment, the system includes an entrance pupil (50), followed by a lens group (52) containing two refractive elements for primary color correction. Next along the optical axis is lens group (54), which contains two refractive elements for astigmatism and higher order coma correction, followed by lens group (60), which contains one refractive element (62) and one DOE (64) for secondary color correction.

6. 发明授权

US5526181A Dynamic aberration corrector for conformal windows 失效
标题翻译：用于保形窗的动态像差校正器
公开(公告)号：US5526181A
公开(公告)日：1996-06-11
申请号：US179597
申请日：1993-12-22
申请人： Joseph M. Kunick , Chungte W. Chen , Lacy G. Cook , Anthony S. Lau
发明人： Joseph M. Kunick , Chungte W. Chen , Lacy G. Cook , Anthony S. Lau
IPC分类号： G02B13/00 , G02B27/00 , F41G7/00 , H01J3/14
CPC分类号： G02B27/0025
摘要： A method and apparatus (30) for compensating for optical aberration created by a conformal window (60). The apparatus (30) comprises a one-dimensional corrector plate (32) for providing a varying amount of linear coma, first and second cylindrical lenses (34, 38) for providing a varying amount of astigmatism and a system for adjusting the corrector plate (32) and the lenses (34) and (38) to minimize the optical aberration created by the conformal window. The apparatus (30) of the present invention provides for correction of considerable amounts of optical aberration over a wide field of regard. The apparatus is simple in design, easy to install and cost effective.
摘要翻译：一种用于补偿由保形窗（60）产生的光学像差的方法和装置（30）。所述装置（30）包括用于提供变化量的线性彗差的第一和第二柱面透镜（34,38）的一维校正板（32），用于提供变化量的像散，以及用于调整校正板（ 32）和透镜（34）和（38），以最小化由保形窗产生的光学像差。本发明的装置（30）提供了在广泛的方面上相当大量的光学像差的校正。该设备设计简单，安装方便，性价比高。

7. 发明授权

US5436763A Wide spectral bandwidth virtual image display optical system 失效
标题翻译：宽光谱带宽虚像显示光学系统
公开(公告)号：US5436763A
公开(公告)日：1995-07-25
申请号：US223385
申请日：1994-04-05
申请人： Chungte W. Chen , Mao-Jin Chern
发明人： Chungte W. Chen , Mao-Jin Chern
IPC分类号： G02B27/02 , G02B5/18 , G02B17/08 , G02B27/00 , G02B27/01 , G02B27/10 , G02B27/42
CPC分类号： G02B17/0852 , G02B17/08 , G02B27/0037 , G02B27/0101 , G02B27/4211 , G02B5/1876 , G02B2027/0118
摘要： A virtual image display optical system. The system includes an image source, a combiner, and a relay group. The relay group is a catatrioptic relay group that includes a reflective optical element, and a refractive lens group that includes at least one doublet and a diffractive lens. For some applications, the catatrioptric relay group may be replaced by a hybrid refractive-diffractive relay group, thus eliminating the reflective element. The diffractive optical element of the hybrid optical element is encoded on one side of a lens. The hybrid optical element forms a refractive/diffractive achromat to provide for primary chromatic aberration correction. The refractive lens group is also an achromat to provide for chromatic aberration correction. Power distribution between the hybrid optical element and the refractive lens group is such that secondary chromatic aberration of the refractive lens group is balanced out by the secondary chromatic aberration of the hybrid optical element. The diffractive optical element is designed using higher order wavefront correction terms encoded on one side to reduce spherochromatism and secondary spherochromatism of the relay group. One lens may have a conic or an aspherical surface to further reduce the spherochromatism and secondary spherochromatism. Asymmetrical aberration and distortion resulting from the combiner are compensated for by the reflective optical element. To minimize the residual aberration of the optical system, the reflective optical element is tilted and/or decentered. The system has a relatively wide spectral bandwidth, has good image quality, has simple optics, is ultracompact, and provides wide field coverage and large field overlaying.
摘要翻译：虚拟图像显示光学系统。该系统包括图像源，组合器和中继组。继电器组是包括反射光学元件的灾难性继电器组和包括至少一个双折射衍射透镜的折射透镜组。对于一些应用，灾难性继电器组可以由混合折射衍射继电器组代替，从而消除反射元件。混合光学元件的衍射光学元件被编码在透镜的一侧。混合光学元件形成折射/衍射消色差以提供初级色差校正。折射透镜组也是用于提供色像差校正的消色差。混合光学元件和折射透镜组之间的功率分布使得折射透镜组的二次色差由混合光学元件的二次色差平衡。衍射光学元件使用在一侧编码的较高阶波前校正项来设计，以减少中继组的球状染色和次级球状染色。一个透镜可以具有锥形或非球面，以进一步减少球状染色和次级球状染色。由组合器产生的不对称像差和失真由反射光学元件补偿。为了最小化光学系统的残余像差，反射光学元件倾斜和/或偏心。该系统具有相对较宽的光谱带宽，具有良好的图像质量，光学简单，超小型化，提供广泛的现场覆盖和大面积的覆盖。

8. 发明授权

US5268790A Zoom lens employing refractive and diffractive optical elements 失效
$Zoom lens employing refractive and diffractive optical elements$
标题翻译：使用折射和衍射光学元件的变焦镜头
公开(公告)号：US5268790A
公开(公告)日：1993-12-07
申请号：US811485
申请日：1991-12-20
申请人： Chungte W. Chen
发明人： Chungte W. Chen
IPC分类号： G02B15/16 , G02B5/18 , G02B15/14
CPC分类号： G02B15/16
摘要： A zoom lens (10) has a first lens group (12), a second lens group (14) and a third lens group (16). The first lens group relays an outside scene to an intermediate plane. The second lens group varies magnification of the relayed image from the first lens group. Also, the second lens group includes at least one diffractive optical element. The third lens group compensates for focus shift and focuses the wavefront onto the viewing plane.

9. 发明授权

US5151823A Biocular eyepiece optical system employing refractive and diffractive optical elements 失效
$Biocular eyepiece optical system employing refractive and diffractive optical elements$
标题翻译：使用折射和衍射光学元件的生物目镜光学系统
公开(公告)号：US5151823A
公开(公告)日：1992-09-29
申请号：US764285
申请日：1991-09-23
申请人： Chungte W. Chen
发明人： Chungte W. Chen
IPC分类号： G02B3/02 , G02B5/18 , G02B13/14 , G02B25/00 , G02B27/00 , H01J29/89
CPC分类号： G02B5/1895 , G02B13/14 , G02B25/001 , G02B27/0037 , G02B27/4211 , G02B3/02 , G02B5/1876 , H01J29/89 , H01J2229/893
摘要： In one embodiment, a three-element biocular eyepiece system 40 having a first optical element 42 with at least one diffractive surface 44, a second optical element 48 having a refracting convex surface 50 and a refracting concave surface b 52 is provided. A third optical element 54 having a refracting convex surface 56 and a refracting convex surface 58 is also employed. In another embodiment, a four-element biocular system 60 is disclosed as having an optical element 62 having a refracting concave surface 64 and a refracting convex surface 66, a refractive-diffractive hybrid optical element 68 having a diffractive surface 70 and a refracting convex surface 72, an optical element 74 having a refracting convex surface 76 and a refracting concave surface 78, and an optical element 80 having a refracting concave surface 82 and a refracting convex surface 84. The diffractive surfaces 44 and 70 have a kinoform profile 102 a-d or approximated kinoform profiles 112a-d and 122a-d. Both versions of the biocular eyepiece 40 and 60 provide a biocular eyepiece which has fewer lens elements and a shorter overall length than conventional designs. Both versions of the biocular eyepiece 40 and 60 may be used in combination with a cathode ray tube 12 for magnification of images generated therein.

10. 发明授权

US06396647B1 Optical system with extended boresight source 有权
标题翻译：具有扩展视轴源的光学系统
公开(公告)号：US06396647B1
公开(公告)日：2002-05-28
申请号：US09542354
申请日：2000-04-03
申请人： Chungte W. Chen
发明人： Chungte W. Chen
IPC分类号： G02B900
CPC分类号： F41G3/326
摘要： An optical system has an extended boresight source including a boresight light source that produces a light beam, a condenser lens that receives the light beam from the boresight light source, a spatial light integrator that receives the light beam from the condenser and mixes the light beam to reduce its spatial inhomogeneities, a constriction through which the light beam from the spatial light integrator is directed, and a collimator that receives the light beam which passes through the constriction and outputs a boresight light beam. The boresight light beam is typically provided to a sensor imager that uses the boresight light beam to establish its centroid.
摘要翻译：光学系统具有扩展的视轴源，其包括产生光束的视轴光源，接收来自视轴光源的光束的聚光透镜，接收来自冷凝器的光束的空间光积分器，并将光束以减少其空间不均匀性，来自空间光积分器的光束通过该缩小被引导;以及准直器，其接收穿过收缩部并输出视轴光束的光束。视轴光束通常提供给使用视轴光束建立其重心的传感器成像器。

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