公开(公告)号：US20050140932A1

公开(公告)日：2005-06-30

申请号：US11052633

申请日：2005-02-07

申请人： Simon Magarill ,  Charles Bruzzone ,  Stephen Eckhardt ,  R. English ,  E. Fulkerson ,  Jiaying Ma ,  Todd Rutherford

发明人： Simon Magarill ,  Charles Bruzzone ,  Stephen Eckhardt ,  R. English ,  E. Fulkerson ,  Jiaying Ma ,  Todd Rutherford

IPC分类号： G02B5/04 ,  G02B5/30 ,  G02B27/28 ,  G03B21/00 ,  G03B21/14

CPC分类号： G02B5/3033 ,  G02B5/3058 ,  G02B27/283

摘要： A compound polarization beam splitter (33) for use with a reflective, polarization-modulating, imaging device (10), e.g., a LCoS device, is provided. The compound PBS has: (a) an input prism (20); (b) an output prism (30), and (c) a polarizer (13), which is located between the two prisms (20,30) and which may be a wire grid polarizer (13a) or a multi-layer reflective polarizer (13b). Polarized illumination light (11) enters the input prism (20) through a first surface (21) and undergoes total internal reflection at a second surface (22) before being reflected from the polarizer (13) and polarization-modulated at the imaging device (10). The polarizer's tilt angle (β) is less than 45°, which reduces astigmatism and the required back working distance of the system's projection lens (74).

公开(公告)号：US20060274277A1

公开(公告)日：2006-12-07

申请号：US11464052

申请日：2006-08-11

申请人： Simon Magarill ,  Boris Ardashnikov ,  R. English

发明人： Simon Magarill ,  Boris Ardashnikov ,  R. English

IPC分类号： G03B21/26

CPC分类号： H04N9/3105 ,  H04N9/3152 ,  H04N9/3164

摘要： High pressure mercury arc lamps are commonly used as the illumination source in many projection systems. Such lamps may be deficient in either output power or spectrum, and so it is desirable to combine the light from the lamp with light from a second light generator. The second light generator may be another mercury lamp or a solid state source, such as one or more light emitting diodes. Different ways of combining light from two light generators are described. The second light source may be an arrangement of a number of red LEDs that supplements the red light produced by the mercury light. A tunnel integrator may be used to homogenize the combined light beam and to reduce the angular separation between the light beams from the two light generators.

摘要翻译： 高压汞弧灯通常用作许多投影系统中的照明源。 这种灯可能在输出功率或光谱方面都不足，因此期望将来自灯的光与来自第二光发生器的光组合。 第二光发生器可以是另一个汞灯或固态源，例如一个或多个发光二极管。 描述了组合来自两个光发生器的光的不同方式。 第二光源可以是补充由水银光产生的红光的多个红色LED的布置。 可以使用隧道积分器来均匀化组合的光束并且减小来自两个光发生器的光束之间的角度间隔。

公开(公告)号：US20050134811A1

公开(公告)日：2005-06-23

申请号：US10745000

申请日：2003-12-23

申请人： Simon Magarill ,  Boris Ardashnikov ,  R. English

发明人： Simon Magarill ,  Boris Ardashnikov ,  R. English

IPC分类号： H04N9/31 ,  G03B21/26

CPC分类号： H04N9/3105 ,  H04N9/3152 ,  H04N9/3164

摘要： High pressure mercury arc lamps are commonly used as the illumination source in many projection systems. Such lamps may be deficient in either output power or spectrum, and so it is desirable to combine the light from the lamp with light from a second light generator. The second light generator may be another mercury lamp or a solid state source, such as one or more light emitting diodes. Different ways of combining light from two light generators are described. The second light source may be an arrangement of a number of red LEDs that supplements the red light produced by the mercury light. A tunnel integrator may be used to homogenize the combined light beam and to reduce the angular separation between the light beams from the two light generators.

摘要翻译： 高压汞弧灯通常用作许多投影系统中的照明源。 这种灯可能在输出功率或光谱方面都不足，因此期望将来自灯的光与来自第二光发生器的光组合。 第二光发生器可以是另一个汞灯或固态源，例如一个或多个发光二极管。 描述了组合来自两个光发生器的光的不同方式。 第二光源可以是补充由水银光产生的红光的多个红色LED的布置。 可以使用隧道积分器来均匀化组合的光束并且减小来自两个光发生器的光束之间的角度间隔。

公开(公告)号：US20050151939A1

公开(公告)日：2005-07-14

申请号：US11074167

申请日：2005-03-07

申请人： R. English ,  Sean Donnelly ,  Simon Magarill ,  Arlie Conner

发明人： R. English ,  Sean Donnelly ,  Simon Magarill ,  Arlie Conner

IPC分类号： H04N9/31 ,  G03B21/14

CPC分类号： H04N9/3158 ,  H04N9/3105

摘要： A projection display system employs one or more color modifying aperture stops, such as apodizing aperture stops, to provide high contrast, balanced color and high throughput. One projection system includes a reflective liquid crystal-on-silicon light valve positioned with a polarizing beam splitter, such as a wire grid polarizing beam splitter, for each of the primary color component light paths to separately impart image information into each of the primary color components of light. A color combiner receives and combines the primary color components of light with imparted image information to provide light representing a polychromatic display image. At least one aperture stop is positioned along at least one of the primary color component light paths to balance relative intensities of the primary color components of light.

摘要翻译： 投影显示系统采用一个或多个变色孔径光阑，例如变迹孔径光阑，以提供高对比度，平衡的颜色和高产量。 一个投影系统包括一个反射型硅晶体光阀，该反射型硅晶体光阀位于每个原色分量光路上的偏振分束器，例如线栅偏振分束器，以分别将图像信息分配给每个基色 光的成分。 颜色组合器接收并组合光的主要颜色分量和所赋予的图像信息，以提供表示多色显示图像的光。 至少一个孔径光阑沿着原色分量光路中的至少一个定位，以平衡光的原色分量的相对强度。

公开(公告)号：US20060227570A1

公开(公告)日：2006-10-12

申请号：US11092284

申请日：2005-03-29

申请人： Todd Rutherford ,  R. English

发明人： Todd Rutherford ,  R. English

IPC分类号： F21V7/04

CPC分类号： H04N9/315

摘要： An illumination system, such as might be used for illuminating a projection system, includes at least a first source of incoherent light capable of generating light in a first wavelength range. The system also includes a body containing a fluorescent material that emits light in a second wavelength range, different from the first wavelength range, when illuminated by light in the first wavelength range. The body has an extraction area and at least some of the light at the second wavelength is internally reflected within the body to the extraction area.

摘要翻译： 诸如可能用于照射投影系统的照明系统包括能够产生第一波长范围的光的至少第一非相干光源。 该系统还包括当在第一波长范围内的光照射时，该主体包含发射与第一波长范围不同的第二波长范围内的光的荧光材料。 身体具有提取区域，并且第二波长处的至少一些光在体内被内部反射到提取区域。

公开(公告)号：US20050078383A1

公开(公告)日：2005-04-14

申请号：US10681850

申请日：2003-10-08

申请人： Edward Jones ,  R. English

发明人： Edward Jones ,  R. English

IPC分类号： G02B6/42 ,  H01S5/02 ,  G02B3/02

CPC分类号： G02B6/4206 ,  H01S5/02

摘要： An optical system for focusing or collimating light from a semiconductor laser uses a combination of glass and plastic lenses. The glass lens provides a spherical surface for collimating the highly diverging light. The glass lens is relatively inexpensive, and is relatively thermally stable. The plastic lens provides correction for spherical aberration introduced by the glass lens, and may have an aspheric surface. A third lens may be used for focusing the light to a target. The third lens may be glass or plastic. Since the optical power of the plastic lens is low, the overall performance of the optical system is thermally stable, despite the use of plastic components.

摘要翻译： 用于聚焦或准直来自半导体激光器的光的光学系统使用玻璃和塑料透镜的组合。 玻璃透镜提供用于准直高度发散的光的球形表面。 玻璃透镜相对便宜，并且相对热稳定。 塑料透镜提供由玻璃透镜引入的球面像差的校正，并且可以具有非球面。 可以使用第三透镜来将光聚焦到目标。 第三透镜可以是玻璃或塑料。 由于塑料透镜的光功率低，所以尽管使用塑料部件，光学系统的整体性能是热稳定的。

公开(公告)号：US20070201132A1

公开(公告)日：2007-08-30

申请号：US11364487

申请日：2006-02-27

申请人： Bruce Cannon ,  R. English

发明人： Bruce Cannon ,  R. English

IPC分类号： G03B21/56

CPC分类号： G03B21/28 ,  G02B13/16 ,  G02B17/023 ,  G02B17/08 ,  G03B21/625

摘要： The optical path for a rear projection television is disclosed, having emission from a projection lens, an optional reflection from a turning mirror, reflection from a curved mirror, reflection from one or two flat mirrors, and projection onto the rear surface of a viewing screen. When two flat mirrors are present, there is one flat mirror parallel to the screen near the rear of the television cabinet, and the other flat mirror perpendicular to the screen near the top or the bottom of the cabinet. When only one flat mirror is present, it is located near the top or bottom of the cabinet, and is inclined with a small but finite angle toward the screen. The optional turning mirror can allow the lens barrel to be located in an otherwise unused part of the cabinet, and can further reduce the size of the cabinet. The pedestal height divided by the screen height may be less than roughly 1/10, and the casing depth divided by the screen height may be less than roughly ⅓.

摘要翻译： 公开了一种用于背投电视的光路，其具有来自投影透镜的发射，来自转向镜的可选反射，来自曲面镜的反射，来自一个或两个平反射镜的反射，以及投影到观察屏幕的后表面上 。 当存在两个平面镜时，在电视柜后部附近有一个平行于屏幕的平面镜，另一个平面镜垂直于靠近机柜顶部或底部的屏幕。 当仅存在一个平面镜时，它位于机柜的顶部或底部附近，并且朝向屏幕倾斜一小小但有限的角度。 可选的转向镜可以允许镜筒位于机柜的另外未使用的部分中，并且可以进一步减小机柜的尺寸。 基座高度除以屏幕高度可以小于大约1/10，并且壳体深度除以屏幕高度可以小于大约1/3。