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    • 4. 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。
    • 8. 发明申请
    • OPTICAL ELEMENT HAVING AT LEAST ONE EMBEDDED REFLECTOR
    • 具有至少一个嵌入式反射器的光学元件
    • WO2008087568A3
    • 2008-09-12
    • PCT/IB2008050076
    • 2008-01-10
    • KONINKL PHILIPS ELECTRONICS NVCORNELISSEN HUGO JJAGT HENDRIK J BIJZERMAN WILBERT L
    • CORNELISSEN HUGO JJAGT HENDRIK J BIJZERMAN WILBERT L
    • B29D11/00G02B5/124
    • B29D11/00596G02B5/124
    • An optical element (50; 72a-d; 80; 90), which has a first optical member (1; 51; 86; 93; 101) with at least one indentation (2a-f; 20; 25; 30; 35; 40; 57a-c; 100) at a first surface (3) thereof, and a second optical member (5; 52; 87a-c; 94; 104) attached to the first surface (3) of the first optical member (1; 51; 86; 93; 101), this second optical member (5; 52; 87a-c; 94; 104) essentially conforming to the at least one indentation (2a-f; 20; 25; 30; 35; 40; 57a-c; 100) in the first optical member. The optical element further comprises at least one reflector (9-10; 55a-c; 85a-c; 92a-e) at an interface between the first and second optical members, the at least one reflector being located at the at least one indentation. The reflector (9-10; 55a-c; 85a-c; 92a-e) is formed by an interface between a cavity (8) formed between the first and second optical members and one of the first and second optical members.
    • 一种光学元件(50; 72a-d; 80; 90),其具有带有至少一个凹槽(2a-f; 20; 25; 30; 35; 50)的第一光学部件(1; 51; 86; 93; 101) (1)的第一表面(3)上的第二光学部件(5; 52; 87a-c; 94; 104);以及在所述第一表面(3) (2a-f; 20; 25; 30; 35; 40; 51; 86; 93; 101),该第二光学构件(5; 52; 87a-c; 94; 104)基本上与所述至少一个凹陷 57a-c; 100)在第一光学部件中。 所述光学元件还包括位于所述第一和第二光学构件之间的界面处的至少一个反射器(9-10; 55a-c; 85a-c; 92a-e),所述至少一个反射器位于所述至少一个凹陷 。 反射器(9-10; 55a-c; 85a-c; 92a-e)由形成在第一和第二光学构件与第一和第二光学构件中的一个之间的空腔(8)之间的界面形成。