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    • 4. 发明申请
    • COLLIMATION ARRANGEMENT AND ILLUMINATION SYSTEM AND DISPLAY DEVICE USING THE SAME
    • WO2007069198A2
    • 2007-06-21
    • PCT/IB2006/054772
    • 2006-12-12
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.RIEMEIJER, MartijnCALON, Georges, M.VAN LIER, EdwinWANG, Lingli
    • RIEMEIJER, MartijnCALON, Georges, M.VAN LIER, EdwinWANG, Lingli
    • H01L33/58
    • G02B6/0021G02B6/0028G02B19/0028G02B19/0061G02B19/0066G02F1/1336G02F1/133615H01L33/58
    • The invention relates to a collimation arrangement (1, 2, 3, 4) for collimating light emitted by at least one light emitting diode (12, 14) arranged on a planar base (16). The collimation arrangement (1, 2, 3, 4) comprising a collimator (20, 22, 24) and a set of reflective surfaces (50, 52). The collimator comprises a light-ingress window (28, 30) for admitting light emitted by the at least one light emitting diode into the collimator (20, 22, 24), a light-egress window (32, 34) for emitting the light from the collimator (20, 22, 24), and comprises a first edge surface (36), a second edge surface (38), a third edge surface (40, 42, 44) and a fourth edge surface (46, 48). The collimation arrangement (1, 2, 3, 4) is arranged for guiding light emitted by the at least one light emitting diode (12, 14) in a direction of the third and fourth edge surfaces (40, 42, 44, 46, 48) towards the light-egress window (32) via total internal reflection and is arranged for guiding light emitted by the at least one light emitting diode (12, 14) in the direction of the first and second edge surfaces (36, 38) via the reflective surfaces (50, 52). This results in a collimation arrangement of which the width (w) can be easily reduced.
    • 本发明涉及用于对布置在平面基部(16)上的至少一个发光二极管(12,14)发射的光进行准直的准直装置(1,2,3,4)。 准直装置(1,2,3,4)包括准直器(20,22,24)和一组反射表面(50,52)。 准直器包括用于允许由至少一个发光二极管发射的光进入准直器(20,22,24)的光入射窗(28,30),用于发射光的光出射窗(32,34) 从准直器(20,22,24)移出,并且包括第一边缘表面(36),第二边缘表面(38),第三边缘表面(40,42,44)和第四边缘表面(46,48) 。 准直装置(1,2,3,4)被布置成用于将由至少一个发光二极管(12,14)发射的光沿着第三和第四边缘表面(40,42,44,46,48)的方向引导, 48)经由全内反射朝向所述出光窗口(32)移动,并且被布置用于将由所述至少一个发光二极管(12,14)发射的光引导到所述第一和第二边缘表面(36,38)的方向上, 经由反射表面(50,52)。 这导致准直装置的宽度(w)可以容易地减小。