Light pipe for backlighting system

一种无散射光管(10)包含位于第一侧壁(14)和入光面(12)，以及第二侧壁(16)和入光面(12)之间的过渡面(28，30)。该过渡面布置成基本上遮蔽第一和第二侧壁与入光面之间的角部结合面(36，38)，使得在角部形成区内的任何缺陷不能成象而输出，最好使该过渡面被优化成基本上均匀的光强分布。按照本发明的优选实施例的光管还设置成配用一线性光源(306)，例如一冷阴极荧光灯(CCFL)。使光源的暗光区(337′，338′)，即，具有非均匀光强的光源区不相邻于入光面设置。 A non-scattering light pipe includes a transition surface betwe...

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Bibliographische Detailangaben
Hauptverfasser:	JEFFREY A. LAINA, TOMASZ P. JANNSON, STEPHEN A. KUPIEC
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	一种无散射光管(10)包含位于第一侧壁(14)和入光面(12)，以及第二侧壁(16)和入光面(12)之间的过渡面(28，30)。该过渡面布置成基本上遮蔽第一和第二侧壁与入光面之间的角部结合面(36，38)，使得在角部形成区内的任何缺陷不能成象而输出，最好使该过渡面被优化成基本上均匀的光强分布。按照本发明的优选实施例的光管还设置成配用一线性光源(306)，例如一冷阴极荧光灯(CCFL)。使光源的暗光区(337′，338′)，即，具有非均匀光强的光源区不相邻于入光面设置。 A non-scattering light pipe includes a transition surface between a first side wall and an input surface and a second side wall and the input surface. The transition surface is arranged to substantially obscure the corner interfaces between the first and second side walls and the input surface such that in the corner formation any imperfections therein are not imaged into the output. Most preferably, the transition surface is optimized to provide a substantially uniform light intensity distribution. A light pipe in accordance with the preferred embodiments of the present invention is further arranged to couple to a linear light source, such as a cold cathode fluorescent light (CCFL). The light source is arranged such that dim areas, i.e., areas of the light source having non-uniform intensity, are not disposed adjacent the input surface.