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    • 12. 发明授权
    • Optical coupling assembly for use with a high brightness light source
    • 用于高亮度光源的光耦合组件
    • US5367590A
    • 1994-11-22
    • US193626
    • 1994-02-08
    • John M. DavenportRichard L. Hansler
    • John M. DavenportRichard L. Hansler
    • G02B6/00F21V8/00G02B6/42G02B27/00G02B6/26
    • G02B6/0006G02B6/4298Y10S385/90Y10S385/901
    • An optical coupling assembly is useful for coupling a source of light, having high brightness and focussed at a focal plane, to a plurality of optical light conductors. The coupling assembly includes a light transmissive elongated segmented rod-shaped coupling member formed of a plurality of longitudinal sections and a retainer member for holding the longitudinal sections together in an assembled relationship. The coupling member has a central longitudinal axis and at an input end is disposed at the focal plane of the light source, while at an output end is disposed against leading ends of the plurality of optical light conductors. Each longitudinal section of the coupling member has a plurality of spaced longitudinal surfaces capable of internally reflecting light traveling within the longitudinal section. The retainer member is a hollow sleeve which holds the longitudinal sections together in the nested relationship with one another such that some of the longitudinal surfaces of the longitudinal sections define an external circumferential surface of the coupling member whereas others of the longitudinal surfaces of the longitudinal sections define a plurality of internal surfaces within the coupling member which extend from the external circumferential surface to the central longitudinal axis thereof.
    • 光耦合组件可用于将具有高亮度并聚焦在焦平面上的光源耦合到多个光导体。 联接组件包括由多个纵向部分形成的透光细长分段杆状联接部件和用于将组装关系保持在纵向部分的保持器部件。 联接构件具有中心纵向轴线,并且输入端设置在光源的焦平面处,而在输出端设置成抵靠多个光导体的前端。 联接构件的每个纵向部分具有能够内部反射在纵向部分内行进的光的多个间隔开的纵向表面。 保持构件是中空的套筒,其将纵向部分彼此保持在一起,使得纵向部分的一些纵向表面限定了联接构件的外周表面,而纵向部分的纵向表面中的另一些 限定联接构件内的从外周表面延伸到其中心纵向轴线的多个内表面。
    • 13. 发明授权
    • Backlighting of nematic curvilinear aligned phase liquid crystal display
panels
    • 向列曲线对准相液晶显示面板的背光
    • US5283563A
    • 1994-02-01
    • US496395
    • 1990-03-20
    • Gary R. AllenJohn M. DavenportWilliam W. FinchRichard L. HanslerStuart C. Miller
    • Gary R. AllenJohn M. DavenportWilliam W. FinchRichard L. HanslerStuart C. Miller
    • B60Q3/04G02B6/00G02F1/1335G02F1/13357G02F1/1347G09G3/36
    • G02F1/133615G02F1/13476
    • A liquid crystal display (LCD) is provided with a source of backlighting which augments reflected incident light to provide increased contrast. A liquid crystal cell which does not contain dye, but becomes clear when a field is applied, is sandwiched in back of a liquid crystal cell with a dye and electrically connected so that when the front liquid crystal cell is turned ON to make selected portions of it transparent, the back liquid crystal cell is OFF so that corresponding portions of it are highly reflecting. No voltage is allowed to be applied across nonselected portions of the front liquid crystal and a voltage is applied across corresponding nonselected portions of the back liquid crystal making the nonselected portions of the back liquid crystal clear, producing a display of high contrast. Sandwiched to the rear of the back liquid crystal cell is a clear plastic wedge which is edge lighted. The edge lighted wedge only appears bright in the areas where the voltage on the back liquid crystal cell is OFF or not applied thereto.
    • 液晶显示器(LCD)设置有背光源,其增加反射入射光以提供增强的对比度。 不含染料而在场施加时变得清晰的液晶单元被夹在具有染料的液晶单元的背面并电连接,使得当前面液晶单元接通时,使选定部分 它是透明的,背面液晶单元是关闭的,使得它的相应部分是高度反射的。 不允许在前液晶的非选择部分施加电压,并且在后液晶的相应的非选择部分上施加电压,使背液晶的非选择部分清晰,产生高对比度的显示。 三明治到后面的液晶单元的后面是一个清晰的塑料楔形物,其边缘点亮。 在背面液晶单元上的电压关闭或未施加到其上的区域中,边缘点亮的楔块仅显示亮。
    • 19. 发明授权
    • Compact optical coupling systems
    • 紧凑型光耦合系统
    • US5692091A
    • 1997-11-25
    • US530916
    • 1995-09-20
    • William J. CassarlyJohn M. DavenportRichard L. Hansler
    • William J. CassarlyJohn M. DavenportRichard L. Hansler
    • G02B6/26G02B6/28G02B6/32G02B6/42G02B6/24
    • G02B6/4298G02B6/2808Y10S385/901
    • A compact optical coupling member is useful for coupling non-coherent light from a source of light to a light distribution harness. The coupling member includes an elongated light transmissive body having a central longitudinal axis, an inlet end for receiving light from the light source, and an outlet end for providing light to a leading end of a light distribution harness. The elongated body has a polygonal cross-sectional shape for providing increased light mixing of the non-coherent light. The polygonal shape of the elongated body increases in size from a first cross-sectional area at the inlet end to an enlarged cross-sectional area at the outlet end for reducing, with respect to the longitudinal axis, the maximum angle of light passed through the outlet end relative to the maximum angle of light received through the inlet end. A pair of compact optical coupling members of the foregoing type may be used for coupling non-coherent light from first and second sides of the source of light to respective first and second light distribution harnesses. A compact, folded optical system may be realized by making the polygonal shape of a an elongated body of an optical coupling member trapezoidal; and using a plano-convex lens as part of the light distribution harness. The plano-convex lens has a convex surface through which light is received from the coupling member, and a mirrored, planar surface confronting the coupling member and being for reflecting light at an angle that causes the light to substantially miss the coupler.
    • 紧凑的光耦合元件用于将来自光源的非相干光耦合到配光线束。 联接构件包括具有中心纵向轴线的细长光透射体,用于接收来自光源的光的入口端和用于向配光线束的前端提供光的出口端。 细长体具有多边形横截面形状,用于提供非相干光的增加的光混合。 细长体的多边形形状从入口端的第一横截面面积增大到出口端处的扩大横截面面积,用于相对于纵向轴线减小通过 出口端相对于通过入口端接收的最大光角。 上述类型的一对紧凑型光耦合元件可用于将来自光源的第一和第二侧的非相干光耦合到相应的第一和第二配光束。 可以通过使光耦合构件的细长主体的多边形形状梯形来实现紧凑折叠的光学系统; 并使用平凸透镜作为配光线束的一部分。 平凸透镜具有凸出表面,光从接合构件接收,并且与镜面相对的耦合构件的平面表面,用于以使得光基本上错过耦合器的角度反射光。
    • 20. 发明授权
    • High brightness projection lighting system
    • 高亮度投影照明系统
    • US5636915A
    • 1997-06-10
    • US492358
    • 1995-06-19
    • William J. CassarlyJohn M. DavenportRichard L. HanslerRichard C. Nagle
    • William J. CassarlyJohn M. DavenportRichard L. HanslerRichard C. Nagle
    • F21S8/00F21V8/00
    • G02B6/0006F21W2131/406
    • A light source and optical delivery arrangement for use with a projection lighting system as may be used in the stage and studio fields, includes a high brightness light source which achieves a light output in excess of 4000 lumens at a power rating of approximately 60 watts and wherein such efficiency is achieved in conjunction with a rated life of greater than about 4000 hours for such light source. The light source is disposed at the first optical focal point of an ellipsoidally shaped reflector with an input end of an optical coupler disposed at the second optical focal point of the reflector in order to receive the light output from the light source. The optical coupler member has a cross-sectional surface area which is polygonal in shaped and is effective so as to provide a light output therefrom which is essentially uniform in terms of color and intensity. A prismatic member is disposed on the optical coupler member for re-directing the light output into a lens member. The lens member is effective for shaping the light output into the desired beam pattern.
    • 用于舞台和演播室领域的投影照明系统所使用的光源和光学传送装置包括:高亮度光源,其以约60瓦特的额定功率实现超过4000流明的光输出;以及 其中这种效率结合对于这种光源的大于约4000小时的额定寿命来实现。 光源设置在椭圆形反射器的第一光焦点处,其中光耦合器的输入端设置在反射器的第二光焦点处,以便接收来自光源的光输出。 光耦合器部件具有成形多边形的横截面表面积,并且是有效的,从而提供从它们的颜色和强度基本均匀的光输出。 棱镜构件设置在光耦合器构件上,用于将光输出重新引导到透镜构件中。 透镜构件对于将光输出成形为期望的波束图案是有效的。