公开(公告)号：US5715094A

公开(公告)日：1998-02-03

申请号：US758324

申请日：1996-12-03

申请人： David A. Ansley ,  Chungte W. Chen ,  Ronald G. Hegg

发明人： David A. Ansley ,  Chungte W. Chen ,  Ronald G. Hegg

IPC分类号： G02B27/00 ,  G02B27/01 ,  G02B27/14

CPC分类号： G02B27/017 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0132

摘要： A helmet/head mounted display including a display image source and a reflective visor for each eye. The image source includes a fiber optic cover plate with a planar input surface and a curved output surface which has curvature providing the correct curvature. The image source further includes a self-emitting device such as a field electrode display or electroluminescent device, or a polymer dispersed liquid crystal (PDLC) sandwiched between a thin, sharply tapered fiber optic plate and the fiber optic cover plate. For the PDLC image source, back light illumination is introduced through the tapered fiber optic plate, passes through or is scattered by the PDLC and then through the fiber optic face plate to the visor, for reflection to the observer's eye. The fiber optic face plate is constructed with a very low numerical aperture. The fibers of the cover plate are oriented toward the eye as seen in the reflection from the visor to reduce undesirable reflected light. No lenses or beam splitters are in the light path between the image source and the visor.

摘要翻译： 头盔/头戴式显示器，包括用于每只眼睛的显示图像源和反射遮阳板。 图像源包括具有平面输入表面的光纤盖板和具有提供正确曲率的曲率的弯曲输出表面。 图像源还包括诸如场电极显示器或电致发光器件的自发射器件或夹在薄的尖锐锥形光纤板和光纤覆盖板之间的聚合物分散液晶（PDLC）。 对于PDLC图像源，背光照明通过锥形光纤板引入，通过PDLC散射，然后通过光纤面板到达遮阳板，以反射到观察者的眼睛。 光纤面板的数值孔径非常小。 如从遮阳板的反射中看到的，盖板的纤维朝向眼睛定向以减少不期望的反射光。 没有镜头或分束器在图像源和遮阳板之间的光路中。

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。

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.

公开(公告)号：US5357372A

公开(公告)日：1994-10-18

申请号：US864863

申请日：1992-04-07

申请人： Chungte W. Chen ,  Ronald G. Hegg

发明人： Chungte W. Chen ,  Ronald G. Hegg

IPC分类号： G02B27/02 ,  G02B27/01 ,  G02B27/14

CPC分类号： G02B27/0101

摘要： A virtual image display (VID) optical system that is very compact and has a wide field of view. The present optical system has good image quality, has simple optics, is very compact, provides wide field coverage, and has very large field overlaying. The system comprises a combiner and a catadioptric relay group disposed along an optical path between a cathode ray tube and an operator. The virtual image display system of the present invention is adapted to enlarge an image of the cathode ray tube viewed by the operator. The catadioptric relay group is typically comprised of a concave mirror and one refractive sub-group with at least one lens, and provides excellent image quality over a very wide field of view. The concave mirror contributes positive optical power to the system, thus providing for a compact optical system. The concave mirror may be tilted and/or decentered to balance the asymmetric aberrations generated by the combiner. The concave mirror may also have an axially symmetric or generalized surface shape to provide for aberration balance. The concave mirror and combiner cooperate to balance the field curvature introduced by a refractive shape of the relay group. The refractive group of the relay may also be tilted and/or decentered to reduce residual asymmetric aberration.

摘要翻译： 虚拟图像显示（VID）光学系统非常紧凑并且具有广泛的视野。 本光学系统具有良好的图像质量，光学简单，非常紧凑，提供广泛的现场覆盖，并具有非常大的场覆盖。 该系统包括沿着阴极射线管和操作者之间的光路布置的组合器和反射折射继电器组。 本发明的虚拟图像显示系统适用于放大由操作者观察的阴极射线管的图像。 反射折射继电器组通常包括具有至少一个透镜的凹面镜和一个折射子组，并且在非常宽的视场中提供优异的图像质量。 凹面镜为系统提供了正光功率，从而为紧凑的光学系统提供了便利。 凹面镜可以倾斜和/或偏心以平衡由组合器产生的不对称像差。 凹面镜也可以具有轴对称或全面的表面形状以提供像差平衡。 凹面镜和组合器协调平衡由中继组的折射形状引入的场曲。 继电器的折射基还可以倾斜和/或偏心，以减少残余的不对称像差。

公开(公告)号：US06563638B2

公开(公告)日：2003-05-13

申请号：US09843668

申请日：2001-04-26

申请人： William B. King ,  Chungte W. Chen ,  Ronald G. Hegg ,  John E. Gunther

发明人： William B. King ,  Chungte W. Chen ,  Ronald G. Hegg ,  John E. Gunther

IPC分类号： G02B530

CPC分类号： G02B27/283 ,  G02B13/14

摘要： A collimating optical device utilizes a reflective beamsplitter in the form of a linear polarizing beamsplitter to achieve a wide field of view. One form of the wide-angle collimating optical device includes, in order from an image source, a first absorptive linear polarizer; a first quarter-wave plate; an optical doublet including a piano-concave singlet, a plano-convex singlet whose convex surface has the same curvature as the curvature of the concave surface, and a first reflective beamsplitter joining the concave surface of the plano-concave singlet to the convex surface of the plano-convex singlet; a second quarter-wave plate; and a second reflective beamsplitter. One of the reflective beamsplitters is a linear polarizing beamsplitter, most preferably a wire grid polarizer.

摘要翻译： 准直光学器件利用线性偏振分束器形式的反射分束器实现宽视场。 广角准直光学器件的一种形式，从图像源依次包括第一吸收型线性偏振器; 第一个四分之一波片; 包括钢琴 - 凹形单峰，其凸表面具有与凹面的曲率相同的曲率的平凸单体的光学双峰，以及将平凹单峰的凹面连接到凸面的凸表面的第一反射分束器 平凸单峰; 第二个四分之一波片; 和第二反射分束器。 反射分束器中的一个是线性偏振分束器，最优选的是线栅偏振器。

公开(公告)号：US06462882B2

公开(公告)日：2002-10-08

申请号：US09797486

申请日：2001-03-01

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： G02B2714

CPC分类号： G02B27/0172

摘要： A display device for a display wavelength range includes an image source, a relay group made of optical elements transparent to the display wavelength range, and a reflective combiner in facing relation to the relay group. The relay group includes a glass optical wedge, a glass lens, and a group of plastic lenses including a diffractive optical element. The group of plastic lenses is positioned between the glass optical wedge and the glass lens. The relay group has the optical wedge having a front face in facing relation to the image source, and a back face; an aspheric lens module having a front face in facing relation to the back face of the optical wedge, and a back face; and an aspheric lens having a front face in facing relation to the back face of the aspheric lens module, a back face, and an optical axis. The aspheric lens module is tilted and decentered with respect to the optical axis of the aspheric lens. The relay group further includes a diffractive-optical-element lens module having a front face in facing relation to the back face of the aspheric lens, and a back face; and a positive-power lens module having a front face in facing relation to the back face of the diffractive-optical-element lens module, and a back face.

摘要翻译： 用于显示波长范围的显示装置包括图像源，由对显示波长范围透明的光学元件制成的中继组以及与中继组相对的反射组合器。 继电器组包括玻璃光楔，玻璃透镜和包括衍射光学元件的一组塑料透镜。 该组塑料透镜位于玻璃光学楔和玻璃透镜之间。 所述继电器组具有光学楔形件，所述光学楔块具有面对所述图像源的正面和背面; 非球面透镜模块，其具有与光楔的后表面相对的正面和背面; 以及非球面透镜，其具有与非球面透镜模块的背面相对的正面，背面和光轴。 非球面透镜模块相对于非球面透镜的光轴倾斜偏心。 继电器组还包括衍射光学元件透镜模块，其具有与非球面透镜的背面相对的正面和背面; 以及具有与衍射光学元件透镜模块的背面相对的正面的正面透镜模块和背面。

公开(公告)号：US5907416A

公开(公告)日：1999-05-25

申请号：US791019

申请日：1997-01-27

申请人： Ronald G. Hegg ,  Chungte W. Chen ,  John E. Gunther ,  Dennis D. Hansen

发明人： Ronald G. Hegg ,  Chungte W. Chen ,  John E. Gunther ,  Dennis D. Hansen

IPC分类号： G02B27/01 ,  G09B9/30 ,  G02B5/32 ,  G02B27/10

CPC分类号： G02B27/0025 ,  G02B27/0149 ,  G09B9/307 ,  G03H2001/043

摘要： A wide field-of-view simulator heads-up display provides images to a user along an optical axis. A HUD CRT provides images of a predetermined design wavelength, while rear projection screen CRTs provide out-of-window scenery that does not contain the predetermined design wavelength. A curved holographic combiner is mounted on the optical axis with a reflective hologram on a concave surface covered with a urethane overcoat. The convex surface has an antireflective coating. A tilted beamsplitter cooperates with a folding mirror in a relay optical system for providing a virtual image of the HUD CRT for reflection from the holographic combiner.

摘要翻译： 广泛的视野模拟器平视显示器沿着光轴向用户提供图像。 HUD CRT提供预定设计波长的图像，而背投屏幕CRT提供不包含预定设计波长的窗外风景。 弯曲的全息组合器安装在光轴上，反射全息图在被聚氨酯外涂层覆盖的凹面上。 凸面具有抗反射涂层。 倾斜分束器与中继光学系统中的折叠镜配合，用于提供用于来自全息组合器的反射的HUD CRT的虚拟图像。

公开(公告)号：US5890788A

公开(公告)日：1999-04-06

申请号：US988326

申请日：1997-12-10

申请人： Chungte W. Chen ,  Ronald G. Hegg ,  Jonathan L. Dugdale ,  John W. Schaefer

发明人： Chungte W. Chen ,  Ronald G. Hegg ,  Jonathan L. Dugdale ,  John W. Schaefer

IPC分类号： G09B9/32 ,  G03B21/28

CPC分类号： G09B9/326

摘要： An optical system (10) has an image source (12), a first optical element (34), a second optical element (50), and an aperture stop (52). The first optical element (34) is positioned close to the image source (12) to generate anamophic field curvature of matching the display screen (16). The radiation is then directed to the second optical element (50) which corrects astigmatism of the radiation passing from the first optical element (34). The aperture stop (52) is provided adjacent to the second optical element (50). The system may be used in an infinite display optical system where the radiation would be directed through projector 14 to a screen (16). A mirror (18) is positioned to reflect the radiation from the screen (16) to provide an image to a viewer.

摘要翻译： 光学系统（10）具有图像源（12），第一光学元件（34），第二光学元件（50）和孔径光阑（52）。 第一光学元件（34）定位成靠近图像源（12）以产生与显示屏幕（16）匹配的吸气曲率。 然后将辐射导向第二光学元件（50），该第二光学元件校正从第一光学元件（34）通过的辐射的散光。 孔径光阑（52）设置成与第二光学元件（50）相邻。 该系统可以用在无限显示光学系统中，其中辐射将被引导通过投影仪14到屏幕（16）。 反射镜（18）被定位成反射来自屏幕（16）的辐射，以向观看者提供图像。

公开(公告)号：US5363241A

公开(公告)日：1994-11-08

申请号：US864860

申请日：1992-04-07

申请人： Ronald G. Hegg ,  Mao-Jin Chern

发明人： Ronald G. Hegg ,  Mao-Jin Chern

IPC分类号： G02B7/04 ,  G02B1/00 ,  G02B25/00 ,  G02B27/02 ,  H04N13/00 ,  G02B15/14

CPC分类号： H04N13/042 ,  G02B25/008 ,  G02B1/00

摘要： A focusable virtual image display system employing a focusable image source such as a cathode ray tube and imaging optics to provide a virtual image. The virtual image is viewable by a user and its effective range may be changed without changing the apparent field of view or resolution. By placing the focus point of the imaging optics at the design eye, the image source is moved backwards and forwards, thus effectively changing the range of the virtual image observed by the user without changing the apparent field of view or resolution. The present invention allows the user to adjust the focus position of the virtual image of the image source by moving it relative to the imaging optics, while maintaining the size and resolution of the image. If the user wants to move the image further away, when the image source is moved, the imaging optics moves the virtual image further away and magnifies the image such that the angular field of view stays the same. The user cannot distinguish between the sizes, although the focus will be more comfortable for a particular accommodation range. The relative cost of the virtual image display system is relatively less expensive than large screen monitors due to the nature and complexity of the smaller components. By including a focus adjustment mechanism, the focusable virtual image display monitor has an added feature that a conventional large screen monitor does not provide.

摘要翻译： 采用诸如阴极射线管和成像光学器件的可聚焦图像源的可对焦的虚像显示系统来提供虚像。 虚拟图像可由用户查看，并且可以改变其有效范围而不改变视野或分辨率。 通过将成像光学元件的焦点放置在设计眼睛处，图像源被向前和向后移动，从而有效地改变用户观察到的虚拟图像的范围而不改变视野或分辨率。 本发明允许用户通过相对于成像光学元件移动图像源的虚像来调节焦点位置，同时保持图像的尺寸和分辨率。 如果用户想要将图像移动得更远，当图像源被移动时，成像光学元件将虚拟图像进一步移动并放大图像，使得角度视场保持不变。 用户不能区分大小，尽管对于特定的住宿范围来说，焦点将更加舒适。 由于较小组件的性质和复杂性，虚拟图像显示系统的相对成本比大屏幕显示器相对较便宜。 通过包括焦点调整机构，可聚焦虚拟图像显示监视器具有常规大屏幕监视器不提供的附加功能。

公开(公告)号：US5535025A

公开(公告)日：1996-07-09

申请号：US192472

申请日：1994-02-01

申请人： Ronald G. Hegg

发明人： Ronald G. Hegg

IPC分类号： G02B27/00 ,  G02B27/01 ,  G02F1/1335

CPC分类号： G02F1/133524 ,  G02B27/0172 ,  G02B2027/011 ,  G02F1/133526 ,  Y10S385/901

摘要： An optical arrangement that provides a telecentric helmet mounted display optical system. The optical arrangement comprises an image source including a faceplate wedge attached to a liquid crystal display, such as an active matrix liquid crystal display, for example, that is illuminated with collimated fight. The output image is used as a light source for an off-axis or on-axis reflector used to produce an output image. The faceplate wedge corrects the anamorphic distortion exhibited in the off-axis reflector and directs the light energy into the off-axis entrance pupil of the reflector to maintain high uniformity over the exit pupil without sacrificing brightness. More particularly, the present invention comprises the input light source, and the liquid crystal display that is illuminated with collimated light from the light source. The faceplate wedge is optically coupled to the liquid crystal display, and the reflector is optically coupled to the faceplate wedge for producing an output image. The faceplate wedge corrects for anamorphic distortion exhibited in the reflector and directs light energy into an off-axis entrance pupil to maintain high uniformity over the exit pupil without sacrificing brightness. The reflector may comprise an off-axis or on-axis portion of a parabolic reflector. The optical arrangement may further comprise a collimating lens disposed between the liquid crystal display and the input light source. The collimating lens may comprise a Fresnel lens. In an off-axis version, the optical arrangement may further comprise first and second planar reflectors disposed between the input light source and the collimating lens, and a negative lens optically coupled to an output surface of the faceplate wedge. In an on-axis version, the optical arrangement may further comprise a beamsplitter optically coupled between the faceplate wedge and the reflector.

摘要翻译： 一种提供远心头盔安装的显示光学系统的光学装置。 光学装置包括图像源，其包括附接到诸如有源矩阵液晶显示器的液晶显示器的面板楔块，例如被准直打架照亮的有源矩阵液晶显示器。 输出图像用作用于产生输出图像的离轴或轴上反射器的光源。 面板楔块校正离轴反射器中出现的变形失真，并将光能引导到反射器的离轴入射光瞳，以在出射光瞳上保持高均匀性而不牺牲亮度。 更具体地，本发明包括输入光源和由来自光源的准直光照射的液晶显示器。 面板楔形件光学耦合到液晶显示器，并且反射器光学耦合到面板楔形件以产生输出图像。 面板楔块校正反射器中出现的变形失真，并将光能引导到离轴入射光瞳，以在出射光瞳上保持高均匀性，而不会牺牲亮度。 反射器可以包括抛物面反射器的离轴或轴上部分。 光学装置还可以包括设置在液晶显示器和输入光源之间的准直透镜。 准直透镜可以包括菲涅尔透镜。 在离轴版本中，光学装置还可以包括设置在输入光源和准直透镜之间的第一和第二平面反射器，以及光学耦合到面板楔的输出表面的负透镜。 在轴上版本中，光学装置还可以包括光学耦合在面板楔和反射器之间的分束器。