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    • 1. 发明申请
    • METHOD AND APPARATUS FOR SIMULATION OF OPTICAL SYSTEMS
    • 用于模拟光学系统的方法和装置
    • WO2007064807A8
    • 2007-12-21
    • PCT/US2006045867
    • 2006-11-30
    • 3M INNOVATIVE PROPERTIES CO
    • FREIER DAVID G
    • G06F9/455
    • G06F17/5009G06F2217/10
    • Computer-implemented methods of simulating optical systems such as backlights, and machine-readable media for carrying out such methods, are disclosed. The optical systems include optical elements. In some cases, different first and second probability functions can be acquired for first and second elements (respectively) of the optical system. A combined probability function can then be calculated using at least the first and second probability functions, and rays can be traced through the optical system using the combined probability function. The first, second, and combined probability functions can be bi-directional scattering distribution functions (BSDFs), having values stored in cells wherein each cell corresponds to a particular entrance and exiting direction. Some methods can include acquiring a first probability function associated with a first element, the first probability function including cell values as a function of incident direction and exiting direction. Rays can be traced through the optical system using the first probability function.
    • 公开了用于模拟诸如背光的光学系统以及用于执行这些方法的机器可读介质的计算机实现的方法。 光学系统包括光学元件。 在一些情况下,可以针对光学系统的第一和第二元件(分别)获取不同的第一和第二概率函数。 然后可以使用至少第一和第二概率函数来计算组合概率函数,并且可以使用组合概率函数通过光学系统跟踪射线。 第一,第二和组合概率函数可以是双向散射分布函数(BSDF),其具有存储在单元中的值,其中每个单元对应于特定的入口和出口方向。 一些方法可以包括获取与第一元素相关联的第一概率函数,第一概率函数包括作为入射方向和出射方向的函数的单元值。 可以使用第一概率函数通过光学系统跟踪光线。
    • 6. 发明申请
    • LIGHTING ASSEMBLIES AND SYSTEMS
    • 照明装配和系统
    • WO2010123688A3
    • 2011-01-13
    • PCT/US2010030321
    • 2010-04-08
    • 3M INNOVATIVE PROPERTIES CO
    • KRISTOFFERSEN MARTINBIERNATH ROLF WCORRIGAN THOMAS R JFREIER DAVID GJOHNSTON RAYMOND PMEIS MICHAEL AMEYER KENNETH A PSAVVATEEV VADIM NTOLBERT WILLIAM ATUMA PHILLIP E
    • F21V17/00F21V5/00F21V29/00G09F13/20
    • F21V29/004F21S8/033F21S8/08F21V29/006F21V29/2212F21V29/51F21V29/71F21V29/75F21V29/763F21V29/773F21W2131/103F21Y2115/10
    • The present disclosure relates to illumination or lighting assemblies and systems that provide illumination using LEDs. In one aspect, the present disclosure provides a lighting assembly, comprising: multiple light emitting diodes that emit light; an optical system that directs the light emitted by the light emitting diodes, the optical system positioned adjacent to light emitting diodes; and a cooling fin including a two-phase cooling system, the cooling fin positioned adjacent to the light emitting diodes such that the two-phase cooling system removes heat from the light emitting diodes. In another aspect, the present disclosure provides a lighting system including multiple lighting assemblies. The lighting assemblies and systems of the present disclosure can be used in, for example, a street light, a backlight (including, for example, a sun-coupled backlight), a wall wash light, a billboard light, a parking ramp light, a high bay light, a parking lot light, a signage lit sign (also referred to as an electric sign), static signage (including, for example, sun-coupled static signage), illuminated signage, and other lighting applications.
    • 本公开涉及使用LED提供照明的照明或照明组件和系统。 一方面,本公开提供一种照明组件,包括:发射光的多个发光二极管; 引导由发光二极管发射的光的光学系统,位于发光二极管附近的光学系统; 以及包括两相冷却系统的冷却翅片,所述冷却翅片邻近所述发光二极管定位,使得所述两相冷却系统从所述发光二极管中除去热量。 在另一方面,本公开提供了一种包括多个照明组件的照明系统。 本公开的照明组件和系统可以用于例如路灯,背光(包括例如太阳耦合背光),洗墙灯,广告牌灯,停车斜坡灯, 一个高耸的灯光,一个停车场的灯光,一个标志性的灯光标志(也称为电气标志),静电标牌(包括例如太阳光静电标牌),照明标牌和其他照明应用。
    • 8. 发明申请
    • DESIGN PARAMETERS FOR THIN HOLLOW CAVITY BACKLIGHTS OF THE LIGHT-RECYCLING TYPE
    • 轻型循环型薄壁空心背景的设计参数
    • WO2008144636A3
    • 2009-04-02
    • PCT/US2008064096
    • 2008-05-19
    • 3M INNOVATIVE PROPERTIES CONEVITT TIMOTHY JHEBRINK TIMOTHY JWEBER MICHAEL FBIERNATH ROLF WFREIER DAVID GWHEATLEY JOHN AOUDERKIRK ANDREW JHOYLE CHARLES DDERKS KRISTOPHER J
    • NEVITT TIMOTHY JHEBRINK TIMOTHY JWEBER MICHAEL FBIERNATH ROLF WFREIER DAVID GWHEATLEY JOHN AOUDERKIRK ANDREW JHOYLE CHARLES DDERKS KRISTOPHER J
    • G02F1/13357G02B6/00
    • F21V7/04G02B6/0055G02B6/0056G02B6/0068G02B6/0096G02F1/133603G02F1/133605G02F1/13362
    • A backlight unit (10) has a hollow cavity (16) instead of employing a light guide. One or more light sources (24a-c), such as LEDs, are arranged to emit light into the cavity, which is formed by a front (12) and a back reflector (14). The backlight is typically of the edge-lit type. The backlight can have a large area, is thin and consists of fewer components than conventional devices. Its design permits light recycling. The unit emits light of a predefined polarisation and can be arranged to have desired horizontal / vertical viewing angle properties. Light is uniformly distributed within the guide and the light output (20b, 2Od) is substantially collimated. Such backlights occupy a specific region in a parameter space defined by two parameters: first, the ratio of the output emission area to the total source emission area should lie in the range 0.0001 to 0.1; and second, the ratio of the SEP to the height of the cavity (H) should be in the range 3 to 10, where the SEP is an average plan view source separation, a special measure of the average spacing of light sources in the plane of the unit. There is also a discussion on the required number of light sources N, their arrangement near the periphery of the cavity, as well as the shape and size of the output emission area. A required minimum brightness uniformity (VESA) value to be maintained, when a subset of Madjacent sources is switched off (where M is at least 0.1 N or M> 2 or both), is also disclosed. The backlight can be used for a display or for general lighting purposes.
    • 背光单元(10)具有中空腔(16)而不是使用光导。 布置一个或多个光源(24a-c),诸如LED,以将光发射到由前部(12)和后部反射器(14)形成的空腔中。 背光通常是边缘照明型。 背光源可以具有较大的面积,较薄并且由比传统设备更少的组件组成。 其设计允许光回收。 该单元发射预定极化的光,并且可以被布置成具有期望的水平/垂直视角特性。 光均匀分布在引导件内,并且光输出(20b,20d)基本准直。 这样的背光灯占据由两个参数定义的参数空间中的特定区域:首先,输出排放面积与总排放源面积的比值应在0.0001到0.1的范围内; 第二,SEP与空腔高度的比值(H)应在3到10的范围内,其中SEP是平均平面视图源分离,平面中光源的平均间距的特殊测量 的单位。 还有关于所需数量的光源N的讨论,它们在空腔的周边附近的布置以及输出发射区域的形状和尺寸。 还公开了当Madjacent源的子集(其中M为至少0.1N或M> 2或两者)时要维持的所需的最小亮度均匀性(VESA)值。 背光可用于显示器或用于一般照明目的。