公开(公告)号：US06776492B1

公开(公告)日：2004-08-17

申请号：US10722006

申请日：2003-11-25

申请人： Sean Chang

发明人： Sean Chang

IPC分类号： G03B2128

CPC分类号： G02B26/0816 ,  G02B26/105

摘要： A multiple reflective mirrors module is described. The module is utilized in an optical engine of a business machine, such as a projector, a laser printer, a copy machine, or a scanner. The module has a fixed reflective mirror, a first tilting reflective mirror, and a second tilting reflective mirror. The first tilting reflective mirror receives an incident light and reflects the incident light to the fixed reflective mirror. Subsequently, the light is reflected by the fixed reflective mirror to the second tilting reflective mirror. Therefore, the second tilting reflective mirror generates an output light. When the first tilting reflective mirror rotates within an angle &thgr;1 and the second tilting reflective mirror rotates within an angle &thgr;2, the output light is capable of rotating within an output angle, twice of &thgr;1+&thgr;2. The fixed reflective mirror can be replaced by another tilting reflective mirror.

摘要翻译： 描述了多反射镜模块。 该模块用于诸如投影仪，激光打印机，复印机或扫描仪的商业机器的光学引擎中。 该模块具有固定反射镜，第一倾斜反射镜和第二倾斜反射镜。 第一倾斜反射镜接收入射光并将入射光反射到固定反射镜。 随后，光被固定反射镜反射到第二倾斜反射镜。 因此，第二倾斜反射镜产生输出光。 当第一倾斜反射镜在角度θ1内旋转并且第二倾斜反射镜在角度θ2内旋转时，输出光能够在θ1+θ2的两倍的输出角度内旋转。 固定的反光镜可以被另一个倾斜反光镜所取代。

公开(公告)号：US06761458B2

公开(公告)日：2004-07-13

申请号：US10192239

申请日：2002-07-10

申请人： Shigeyoshi Sakata ,  Tomokazu Masubuchi

发明人： Shigeyoshi Sakata ,  Tomokazu Masubuchi

IPC分类号： G03B2128

CPC分类号： G03B21/22

摘要： Disclosed herewith is a rear projection optical system for being installed at a rear side of a screen of a rear projection apparatus. The rear projection system comprises: a display panel; a illuminating optical system for illuminating the display panel, the illuminating optical system being decentered from a screen center in both of a horizontal direction and a vertical direction; and a projection optical system, decentered from the screen center in the vertical direction, for projecting a display image on the display panel projected by the illuminating optical system onto a screen through a rear mirror positioned at a position that is the center of the screen. The projection optical system comprises a dioptric system, a deflection mirror, and a curved mirror in this order from the display panel to the rear mirror, and the curved mirror is decentered from the screen center in the vertical direction but centered against the screen center in the horizontal direction.

摘要翻译： 这里公开了一种用于安装在背投投影装置的屏幕的后侧的后投光学系统。 背投系统包括：显示面板; 照明光学系统，用于照亮所述显示面板，所述照明光学系统在水平方向和垂直方向上从屏幕中心偏心; 以及投影光学系统，其从垂直方向的屏幕中心偏心，用于通过位于屏幕中心位置的后反射镜将由照明光学系统投影的显示面板上的显示图像投影到屏幕上。 投影光学系统从显示面板到后视镜依次包括折射系统，偏转镜和曲面镜，并且曲面镜在垂直方向上偏离屏幕中心，但是与屏幕中心对准 水平方向。

公开(公告)号：US06739726B2

公开(公告)日：2004-05-25

申请号：US10062728

申请日：2002-02-05

申请人： Kenneth K. Li

发明人： Kenneth K. Li

IPC分类号： G03B2128

CPC分类号： G02B27/0994 ,  G02B6/0006 ,  G02B27/0927 ,  G02B27/285 ,  G03B21/14 ,  G03B21/2073 ,  G03B21/208 ,  G03B21/28 ,  Y10S385/901

摘要： An illumination engine for a projection display using a TLP including a reflector having a first focal point and second focal points. A source of electro-magnetic radiation disposed proximate to the first focal point of the reflector emits rays of radiation that reflect from the reflector toward the second focal point. A TLP collects and transmits substantially all of the radiation converged at the second focal point, adjusting the numerical aperture of the radiation, but curving the surface formed by the images of the radiation. A SLP or a lens collects and transmits substantially all of the radiation transmitted by the TLP, flattening the surface formed by the images of the radiation. A condenser lens collects and transmits substantially all of the radiation transmitted by the contoured delay element to a PBS and a projection system.

摘要翻译： 一种用于使用包括具有第一焦点和第二焦点的反射器的TLP的投影显示器的照明引擎。 靠近反射体的第一焦点设置的电磁辐射源发射从反射器朝向第二焦点反射的射线。 TLP收集并透射在第二焦点处会聚的基本上所有的辐射，调节辐射的数值孔径，但是弯曲由辐射的图像形成的表面。 SLP或透镜收集并透射由TLP透射的基本上所有的辐射，使由辐射的图像形成的表面变平。 聚光透镜将由轮廓延迟元件传输的基本上所有的辐射收集并透射到PBS和投影系统。

公开(公告)号：US06733140B2

公开(公告)日：2004-05-11

申请号：US10126167

申请日：2002-04-19

申请人： Kenneth S. Westort ,  Douglas L. Robinson ,  Randolph J. Turner

发明人： Kenneth S. Westort ,  Douglas L. Robinson ,  Randolph J. Turner

IPC分类号： G03B2128

CPC分类号： G02B27/2292 ,  G02B17/06 ,  G03B21/10 ,  G03B21/28

摘要： A real image projection system includes at least one curved reflector, positioned in a tilted configuration, wherein an optical axis of the reflector is not coincident with a viewing axis, and a beampath between a target source and the curved reflector neither passes through nor reflects off of a beamsplitter.

摘要翻译： 真实图像投影系统包括至少一个以倾斜构型定位的弯曲反射器，其中反射器的光轴与观察轴不重合，目标光源与弯曲反射体之间的光阑不会透过也不反射 的分光镜。

公开(公告)号：US06652105B1

公开(公告)日：2003-11-25

申请号：US10000171

申请日：2001-11-30

申请人： Mark Peterson ,  Jeffrey A. Gohman

发明人： Mark Peterson ,  Jeffrey A. Gohman

IPC分类号： G03B2128

CPC分类号： H04N9/3114 ,  G03B21/28

摘要： Multimedia projectors (90, 120) include a light source (32) for propagating illumination through a color modulator (42) and a light integrating tunnel (94). Lenses (100, 106) image the integrated light through a patterned-silvered mirror (104, 126) and onto a micromirror display device (MDD) (76, 122). Micromirrors in the MDD that are tilted to an image-forming angle, reflect the image-forming light back toward the patterned-silvered mirror, which propagates the image-forming light toward a projection lens (110). The patterned-silvered mirror includes an accurately positioned boundary separating transparent (102, 116, 128) and reflective (108, 124) portions, resulting in improved contrast of the projected image.

摘要翻译： 多媒体投影仪（90,120）包括用于通过颜色调制器（42）和光积分隧道（94）传播照明的光源（32）。 透镜（100,106）通过图案化镀银镜（104,126）将整合的光图像到微镜显示装置（MDD）（76,122）上。 倾斜成图像形成角度的MDD中的微反射镜将图像形成的反射镜反射到图案化镀银反射镜，其将图像形成光朝向投影透镜（110）传播。 图案化镀银反射镜包括分离透明（102,116,128）和反射（108,124）部分的精确定位的边界，导致投影图像的改善的对比度。

公开(公告)号：US06626542B2

公开(公告)日：2003-09-30

申请号：US10084973

申请日：2002-03-01

申请人： Tomoyuki Baba ,  Chikara Yamamoto

发明人： Tomoyuki Baba ,  Chikara Yamamoto

IPC分类号： G03B2128

CPC分类号： G03B21/28 ,  G02B17/0642

摘要： A bright reflection type projection optical system is used for projecting onto a screen under magnification a luminous flux carrying image information from a light valve driven by an image signal, while favorably correcting aberration. The reflection type projection optical system comprises, successively from the enlargement side, a first mirror having a positive power, a second mirror having a negative power, and a third mirror having a positive power.

公开(公告)号：US06575580B2

公开(公告)日：2003-06-10

申请号：US09819734

申请日：2001-03-29

申请人： Shinji Okamori ,  Shinsuke Shikama

发明人： Shinji Okamori ,  Shinsuke Shikama

IPC分类号： G03B2128

CPC分类号： G02B27/0927 ,  G02B19/0028 ,  G02B19/0047 ,  G02B27/0994 ,  G02F2001/133607

摘要： A lighting system comprising converging means (1, 2) for converging a light emitted from an illuminant to form a converged image, a light mixing element 3 for having an end face of incidence 31 near the position at which the converged image is formed, and reducing an irregular luminance of the converged image of the illuminant to form a uniform light source face on an end face of emergence 32, and an optical system for transmission for directing an illuminating light flux from the plane of light emergence onto the illuminated face 5 side in a non-telecentric state, a first lens group 45 and a second lens group 46 being arranged in order from the light mixing element 3 side to the illuminated face 5 side of a light bulb, in which a first optical conjugate relation exists between the end face of incidence 31 of the light mixing element 3 and a virtual face at a position of a aperture stop 6 disposed in the vicinity of a lens means final face closest to the illuminated face constituting the second lens group in terms of the first lens group and the second lens group, and a second optical conjugate relation exists between the end face of emergence of the light mixing element 3 and the illuminated face 5.

公开(公告)号：US06523961B2

公开(公告)日：2003-02-25

申请号：US09732445

申请日：2000-12-07

申请人： Fedor A. Ilkov ,  Satyadev R. Patel ,  Peter W. Richards ,  John K. Stockton

发明人： Fedor A. Ilkov ,  Satyadev R. Patel ,  Peter W. Richards ,  John K. Stockton

IPC分类号： G03B2128

CPC分类号： G02B26/0841 ,  B82Y30/00

摘要： In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the projection optics, in the present invention, mirrors are provided which are not rectangular. Also, in order to minimize the cost of the illumination optics and the size of the display unit of the present invention, the light source is placed orthogonal to the rows (or columns) of the array, and/or the light source is placed orthogonal to a side of the frame defining the active area of the array. The incident light beam, though orthogonal to the sides of the active area, are not however, orthogonal to any substantial portion of sides of the individual mirrors in the array. Orthogonal sides cause incident light to diffract along the direction of mirror switching, and result in light ‘leakage’ into the on-state even if the mirror is in the off-state. This light diffraction decreases the contrast ratio of the mirror. The mirrors of the present invention result in an improved contrast ratio, and the arrangement of the light source to mirror array in the present invention results in a more compact system.

公开(公告)号：US06517209B2

公开(公告)日：2003-02-11

申请号：US09865457

申请日：2001-05-29

申请人： Austin L. Huang

发明人： Austin L. Huang

IPC分类号： G03B2128

CPC分类号： G03B21/14 ,  G03B21/005 ,  G03B21/2066 ,  G03B21/28 ,  G03B33/12

摘要： A color-separating prism for producing narrow-spectral light from broader spectral light includes first, second, and third component prisms that form first and second adjacent pairs of faces. The color-separating prism also includes first and second reflective layers disposed between the prisms. The first and second reflective layers each reflect separate portions of input light back toward the front surface. In operation, a first portion of a light beam in a first wavelength range is reflected from the first reflective layer back toward the front face of the prism, and a second portion of the light beam in a second wavelength range is reflected from the second reflective layer back toward the front face of the prism. The first and second portions are totally internally reflected from the front face and exit the color-separating prism. The color-separating prism can be used in display systems.

摘要翻译： 用于从较宽光谱光产生窄光谱的分色棱镜包括形成第一和第二相邻面对的第一，第二和第三分量棱镜。 分色棱镜还包括设置在棱镜之间的第一和第二反射层。 第一和第二反射层各自将输入光的分离部分反射回前表面。 在操作中，第一波长范围内的光束的第一部分从第一反射层反射回棱镜的前表面，第二波长范围内的光束的第二部分从第二反射层 层朝向棱镜的前面。 第一和第二部分从前表面全部内部反射并离开分色棱镜。 分色棱镜可用于显示系统。

公开(公告)号：US06491399B1

公开(公告)日：2002-12-10

申请号：US09716385

申请日：2000-11-21

申请人： Motoyuki Fujimori

发明人： Motoyuki Fujimori

IPC分类号： G03B2128

CPC分类号： H04N9/3105 ,  G03B21/28 ,  H04N9/3144

摘要： A projector which can have a low profile and a reduced size. Fixing parts for fixing a mounting part to a lower light guide are disposed at the periphery of the mounting part. The mounting part is not required to be sufficiently thick so that a fixing unit such as a threaded hole can be formed therein. Therefore, the thickness of the mounting part can be reduced, thereby reducing the overall height of the projector, whereby a low-profile and reduced-size projector is possible.

摘要翻译： 可以具有低轮廓和减小尺寸的投影仪。 用于将安装部固定到下导光体的固定部件设置在安装部的周边。 安装部不需要足够厚，因此可以在其中形成诸如螺纹孔的固定单元。 因此，可以减小安装部件的厚度，从而降低投影仪的整体高度，由此可以实现小尺寸和小尺寸的投影仪。