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公开(公告)号：US06788460B2
公开(公告)日：2004-09-07
申请号：US10120785
申请日：2002-04-12
申请人： Richard M. Knox , Dale S. Walker
发明人： Richard M. Knox , Dale S. Walker
IPC分类号： G03B2160
CPC分类号： G02B5/1876 , G02B5/1885 , G03B21/625
摘要： Screen apparatuses are provided which include a first lens or holographic optical element layer and a second mask layer. The first layer substantially collimates image light rays to impinge on the mask layer. The mask layer provides an array or matrix of projecting members. Each of the projecting members receives and focuses the substantially collimated light rays to corresponding focal points. The mask layer includes a mask that blocks light transmission except where openings are located. The openings allow the light focused through the focal joints to substantially pass through the mask to form an image. The screen apparatuses can be advantageously employed in display apparatuses.
摘要翻译： 提供了包括第一透镜或全息光学元件层和第二掩模层的屏幕装置。 第一层基本上准直图像光线照射在掩模层上。 掩模层提供突出构件的阵列或矩阵。 每个突出构件接收并将基本上准直的光线聚焦到对应的焦点。 掩模层包括阻挡除了开口所在的光透射的掩模。 这些开口允许聚焦在焦点上的光基本上通过掩模以形成图像。 屏幕装置可以有利地用在显示装置中。
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公开(公告)号：US06746122B2
公开(公告)日：2004-06-08
申请号：US10120845
申请日：2002-04-12
申请人： Richard M. Knox
发明人： Richard M. Knox
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , F21V9/00 , F21V9/14 , G02B27/283 , H01J61/025 , H01J61/12 , H01J61/34 , H01J61/40 , H01J65/046 , H04N5/7441 , H04N9/3167
摘要： A light projection engine uses a wide angle reflecting polarizer material (preferably 3M DBEF brand double brightness enhancement filter) as a polarizing beamsplitter to direct polarized light to beam splitter/combiner (such as an X-cube dichroic reflector). The beam splitter/combiner then splits the directed polarized light into separate reflective LCD panels acting as light valves. The LCD panels alter the polarity of the incident light from 0 degrees up to 90 degrees to control which light is passes from the wide angle reflecting polarizer back towards the light source and which light has the necessary polarization change to allow it to pass from the wide angle reflecting polarizer to the lens system. After reflecting off of the LCD panels, the light goes back through the X-cube dichroic reflector, where it is recombined. The recombined light which is of a first polarity is transmitted from the reflecting polarizer to the lens system, while the recombined light which is of a second polarity is transmitted to the light source. The LCDs are preferably analog polarizing LCDs.
摘要翻译： 光投影引擎使用广角反射偏振器材料（优选3M DBEF品牌双亮度增强滤光器）作为偏振分光镜，以将偏振光引导到分束器/组合器（例如X立方二向色反射器）。 然后，分束器/组合器将定向偏振光分成用作光阀的分开的反射LCD面板。 LCD面板将入射光的极性从0度改变到90度，以控制哪个光从广角反射偏振器返回到光源，哪个光具有必要的偏振变化，以允许其从宽的 角度反射偏振器到透镜系统。 在反射出液晶显示面板后，光线通过X-cube二向色反射器返回，在那里它被重组。 将具有第一极性的复合光从反射偏振器传输到透镜系统，而具有第二极性的复合光被传输到光源。 LCD最好是模拟偏振LCD。
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公开(公告)号：US06217174B1
公开(公告)日：2001-04-17
申请号：US09239416
申请日：1999-01-28
申请人： Richard M. Knox
发明人： Richard M. Knox
IPC分类号： G03B2100
CPC分类号： H04N9/3114
摘要： A full color image projection system is provided using two non-color-specific image sources and color-specific filters. The system is capable of projecting an image using one primary color from one image source and the other two primary colors from another image source. The system uses slower speed image sources than would be required with one source alternating between three colors, and exhibits higher resolution than would be obtained from a color-specific image source.
摘要翻译： 使用两个非颜色特定图像源和颜色特定滤光片提供全彩图像投影系统。 该系统能够使用一个图像源的一个原色投影图像，另一个图像源的另外两个基色投影图像。 该系统使用比三种颜色之间交替的源更慢的图像源，并且表现出比从特定于颜色的图像源获得的分辨率更高的分辨率。
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14.发明授权公开(公告)号：US06204901B1
公开(公告)日：2001-03-20
申请号：US09110652
申请日：1998-07-07
申请人： Richard M. Knox
发明人： Richard M. Knox
IPC分类号： G02F11335
CPC分类号： G02F1/13473 , G02F1/133536 , G02F2001/133545
摘要： Color shutters that include reflecting linear polarizers can be used in projection display applications. The reflecting linear polarizers are used to reflect the light that would have been absorbed by prior art color shutters. The use of reflecting linear polarizers can resolve overheating and degradation problems of prior art system and projection display systems using sequential color operation can be built and operate reliably.
摘要翻译： 包括反射线偏振器的彩色百叶窗可用于投影显示应用。 反射线性偏振器用于反射现有技术的彩色百叶窗所吸收的光。 使用反射线性偏振器可以解决现有技术的系统的过热和降解问题，并且可以构建并可靠地操作使用顺序彩色操作的投影显示系统。
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公开(公告)号：US5977942A
公开(公告)日：1999-11-02
申请号：US771191
申请日：1996-12-20
申请人： Dale S. Walker , Richard M. Knox
发明人： Dale S. Walker , Richard M. Knox
CPC分类号： G09G3/3651 , H04N5/66 , H04N9/30 , G09G2300/0809 , G09G2300/0814 , G09G2300/0852 , G09G2310/0235 , G09G2310/0259 , G09G2310/066 , G09G2320/0276 , G09G3/2014 , G09G3/3648 , H04N2005/745
摘要： In a color sequential system using LCDs, the LCD must operate faster than the frame rate because red, green, and blue are done sequentially. Ferroelectric LCDs can do this, but they are not analog devices and so cannot provide analog display levels. Instead, a pulse width modulation (PWM) technique is used. In the system of the present invention, each pixel has three storage devices to hold RGB analog levels. A latch is used to load these values in parallel. Then an analog 3:1 multiplexer is used to select the proper storage device for the current sequential color. The multiplexer output goes to a comparator, which has a sawtooth waveform input at much faster than the frame rate. The comparator output changes with the sawtooth level, so that PWM control is provided for each pixel. As an alternative, standard analog LCD pixels can be sequentially switched between three color input storage devices.
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公开(公告)号：US5734375A
公开(公告)日：1998-03-31
申请号：US486310
申请日：1995-06-07
CPC分类号： G06F3/0423 , G06F3/0213
摘要： A method of determining an object's position and associated apparatus provides positional information in a form that may be conveniently communicated to a computer to calculate the object's position. In a preferred embodiment, representatively incorporated in a computer keyboard, a method of determining an object's position includes forming an optical grid of reflected beacons and detecting an obstruction of the reflected beacons. The preferred embodiment apparatus utilizes a single light source and a single light sensor to detect an object's position in two dimensions.
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公开(公告)号：US06379011B1
公开(公告)日：2002-04-30
申请号：US09829817
申请日：2001-04-10
申请人： Richard M. Knox
发明人： Richard M. Knox
IPC分类号： G03B2100
CPC分类号： H04N9/3114
摘要： A full color image projection system is provided using two non-color-specific image sources and color-specific filters. The system is capable of projecting an image using one primary color from one image source and the other two primary colors from another image source. The system uses slower speed image sources than would be required with one source alternating between three colors, and exhibits higher resolution than would be obtained from a color-specific image source.
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公开(公告)号：US06313893B1
公开(公告)日：2001-11-06
申请号：US08995030
申请日：1997-12-19
申请人： Richard M. Knox , Austin L. Huang
发明人： Richard M. Knox , Austin L. Huang
IPC分类号： G02F11347
CPC分类号： G02F1/1347 , G02F1/141 , G02F2001/133638 , G02F2203/02 , G02F2203/62
摘要： In a reflective mode FLC application, a ¼-wave plate compensating FLC is used in series with a ¼-wave imaging FLC to compensate for the effects of DC balancing. Alternatively, the compensating wave plate could be any odd ¼-wave multiple, such as 3&lgr;/4, 5&lgr;/4, etc. The FLCs are driven in synchronization between on and off states with the total effective retardation for each FLC being either none or one-half wavelength in a double pass.
摘要翻译： 在反射模式FLC应用中，波浪板补偿FLC与a波成像FLC串联使用，以补偿直流平衡的影响。 或者，补偿波片可以是任何奇波多重，例如3lambd / 4,5lambd / 4等.FLCs在开和关状态之间同步地被驱动，每个FLC的总有效延迟是无或一个 - 双波长波长
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公开(公告)号：US06265813B1
公开(公告)日：2001-07-24
申请号：US09319308
申请日：1999-06-03
IPC分类号： H01J6130
CPC分类号： H01J65/046 , H01J61/36
摘要： An electrodeless lamp (10) for producing an intense beam of light includes a concave lamp body (11) that surrounds the lamp interior. A gas, such as sulfur or selenium or compounds thereof, is contained within the lamp body (11) for forming a plasma light source. The concave lamp body (11) has a reflecting surface (12). Electrodes (27, 28) are disposed external to the lamp body for producing radio frequency energy exciting the gas. A heat resistant glass plate (20) seals the concave lamp body (11). A frit seal (23) can be used for forming a pressure and temperature resistant seal between the concave lamp body (11) and the glass plate (20). The light beam generated by the plasma exists through the glass plate (20).
摘要翻译： 用于产生强光束的无电极灯（10）包括围绕灯内部的凹形灯体（11）。 诸如硫或硒的气体或其化合物被包含在用于形成等离子体光源的灯体（11）内。 凹灯体11具有反射面12。 电极（27,28）设置在灯体外部，用于产生激发气体的射频能量。 耐热玻璃板（20）密封凹灯体（11）。 玻璃料密封件（23）可以用于在凹形灯体（11）和玻璃板（20）之间形成耐压和耐温密封。 由等离子体产生的光束通过玻璃板（20）存在。
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公开(公告)号：US6008798A
公开(公告)日：1999-12-28
申请号：US885213
申请日：1997-06-30
CPC分类号： G06F3/0423 , G06F3/0213
摘要： A method of determining an object's position and associated apparatus provides positional information in a form that may be conveniently communicated to a computer system to calculate the object's position. In a disclosed embodiment, representatively incorporated in a computer keyboard, a method of determining an object's position includes forming an optical grid of overlapping beacons and detecting reflections of the beacons produced by the object when it intersects the grid. The disclosed embodiment utilizes two focused beacons to produce the optical grid.
摘要翻译： 确定对象的位置和相关联的装置的方法提供可以方便地传送到计算机系统以计算对象的位置的形式的位置信息。 在代表性地并入计算机键盘的公开的实施例中，确定对象的位置的方法包括形成重叠信标的光栅并且检测由对象在与栅格相交时产生的信标的反射。 所公开的实施例利用两个聚焦信标来产生光栅。
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