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    • 2. 发明申请
    • FLAT AND THIN LED-BASED LUMINARY PROVIDING COLLIMATED LIGHT
    • 平面和薄型LED为基础提供集合光
    • WO2008032277A2
    • 2008-03-20
    • PCT/IB2007053681
    • 2007-09-12
    • KONINKL PHILIPS ELECTRONICS NVCORNELISSEN HUGO JIJZERMAN WILLEM LVISSENBERG MICHEL C J M
    • CORNELISSEN HUGO JIJZERMAN WILLEM LVISSENBERG MICHEL C J M
    • G02B6/0068F21W2131/402G02B6/0028G02B6/0053G02B6/0073
    • A light-emitting device (100), comprising a plurality of light emitting diodes (107) arranged spaced apart from each other on a substrate (108), is provided. The device further comprises a light guide plate (101) having a front surface (102) and an opposing back surface (103) that is provided with an array of protrusions (104) extending towards said substrate. The light guide plate is arranged such that light-emitting diodes emits light towards light receiving faces (105) of the protrusions (104). Further, collimators (110) are arranged between the light emitting diodes and the light receiving faces, to collimate the light before it enters the light guide plate. The light from the plurality of LEDs will be transmitted in to the light guide plate and will be distributed therein before exiting the light guide plate via the front side thereof. Thus, the present invention provides a light-emitting device that provides well- distributed and collimated light from a plurality of point light sources.
    • 提供了一种发光器件(100),包括在衬底(108)上彼此间隔开布置的多个发光二极管(107)。 该装置还包括具有前表面(102)和相对的后表面(103)的导光板(101),该背面设置有朝向所述基板延伸的突起阵列(104)。 导光板被布置成使得发光二极管朝向突起(104)的光接收面(105)发光。 此外,准直仪(110)布置在发光二极管和光接收面之间,以在入射到导光板之前准直光。 来自多个LED的光将被传送到导光板,并且将在其中经由其前侧离开导光板之前分布在其中。 因此,本发明提供了一种从多个点光源提供分布均匀和准直的光的发光装置。
    • 6. 发明申请
    • ILLUMINATION SYSTEM, LUMINAIRE AND DISPLAY DEVICE
    • 照明系统,照明和显示设备
    • WO2008035256A3
    • 2008-05-29
    • PCT/IB2007053699
    • 2007-09-13
    • KONINKL PHILIPS ELECTRONICS NVIJZERMAN WILLEM LCORNELISSEN HUGO J
    • IJZERMAN WILLEM LCORNELISSEN HUGO J
    • G02B6/00
    • G02B6/004G02B6/0036
    • The invention relates to an illumination system (4) comprising at least one light source (10) for emitting light of a predominant wavelength (W), and a light-transmitting panel (14) which comprises a light-emitting window (16), a rear wall (18) situated opposite said light-emitting window, and edge walls (20) extending between the light-emitting window and the rear wall. Light from the LED is coupled into the light-transmitting panel and is transported substantially via total internal reflection. The rear wall is provided with a two-dimensional array of recesses (22, 24). A sub-set of recesses (22) is distributed substantially regularly on the rear wall. Each recess (22A, 22B, 22C) from the sub-set (22) comprises scattering material (26). When light from the light-transmitting panel reaches the scattering material of the recess, part of the light (W') is coupled out of the light-transmitting panel via scattering. The regular distribution of the scattering material on the rear wall improves the uniformity of the light emitted via the light-emitting window. In an embodiment of the illumination system, the scattering material comprises a luminescent material (28), which absorbs light of the predominant wavelength (UV) and emits light of a further predominant wavelength (R, G, B).
    • 本发明涉及包括用于发射主波长(W)的光的至少一个光源(10)的照明系统(4),以及包括发光窗口(16)的透光板(14) 位于所述发光窗口对面的后壁(18),以及在发光窗口和后壁之间延伸的边缘壁(20)。 来自LED的光耦合到光传输面板中并且基本上通过全内反射来传输。 后壁设有二维阵列的凹槽(22,24)。 子组(22)基本规则地分布在后壁上。 来自分组(22)的每个凹部(22A,22B,22C)包括散射材料(26)。 当来自透光板的光到达凹槽的散射材料时,部分光(W')通过散射从透光板耦合出来。 散射材料在后壁上的规则分布改善了通过发光窗口发射的光的均匀性。 在照明系统的一个实施例中,散射材料包括发光材料(28),其吸收主波长(UV)的光并发射另一主波长(R,G,B)的光。