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    • 12. 发明公开
    • Light fitting for greenhouse
    • BELEUCHTUNGSGERÄTEFURGEWÄCHSHÄUSER
    • EP1060654A1
    • 2000-12-20
    • EP00660110.8
    • 2000-06-14
    • Flemming, Ismo
    • Flemming, Ismo
    • A01G7/04
    • A01G9/26A01G7/045Y02A40/274Y02P60/146
    • A greenhouse illuminator (10) which has, in an elevation view, a parabola-form upper reflector (12) and lower reflector (13), which reflect the rays of light from a lamp (11) obliquely to the side at an angle most advantageously approximately 15° down from the horizontal. The upper reflector is satin-finished and the lower reflector is a silvered mirror. The lower reflector (13) has apertures (17) which allow diffused light (15c) to pass through it to the area below the illuminator and to its surroundings. In addition, the illuminator incorporates, on both sides of the lamp (11), side reflectors (14a and 14b), which reflect the rays of light (15d) directed to the side from the lamp to the opposite side of the lamp, also obliquely downwards.
    • 一种温室照明器(10),其在正视图中具有抛物线形式的上反射器(12)和下反射器(13),其以最大角度反射来自灯(11)的光线倾斜于侧面 有利地从水平方向下降约15度。 上部反光板经过缎面雕刻,下部反光板是镀银镜。 下反射器(13)具有孔(17),其允许漫射光(15c)通过其到照明器下方的区域及其周围。 此外,照明器在灯(11)的两侧包括反射从灯的一侧到灯的相对侧的光线(15d)的侧反射器(14a和14b),也是 斜向下
    • 16. 发明授权
    • OPTICAL ELEMENT FOR ASYMMETRIC LIGHT DISTRIBUTION
    • OPTISCHES ELEMENTFÜRASYMMETRISCHE LICHTVERTEILUNG
    • EP2279374B1
    • 2016-10-12
    • EP09750219.9
    • 2009-05-13
    • Philips Lighting Holding B.V.
    • VAN OERS, Denis, J., C.VAN ELMPT, Rob, F., M.
    • F21V5/08F21V7/00G02B27/09A01G9/26F21V5/04G02B19/00
    • F21V5/08A01G9/26F21V5/04F21V7/0091F21Y2115/10G02B19/0028G02B19/0061G02B27/095G02B27/0983Y02A40/274
    • The present invention relates to an optical element (2) for collimating light from a light source (3), said optical element (2) having an in-coupling side (5) arranged to receive said light, an out-coupling side (6) arranged to allow for emission of collimated light, and an element body extending from said in-coupling side (5) to said out-coupling side (6), the element body having a cross-section perpendicular to an optical axis (z) defined by an x-5 axis and a y-axis being perpendicular to each other, wherein said optical element (2) has an x-curvature along said x-axis and a y-curvature along said y-axis, said y-curvature being greater than said x-curvature, thereby enabling for a light distribution of said collimated light emitted from said out-coupling side (6) to have a cross-section of an asymmetric shape (CE) perpendicular to said optical axis (z). The present invention also relates to a lighting system (1) comprising such an optical element (2). An advantage with the present invention is that it may provide asymmetric light distribution with an increased beam-width difference in two perpendicular viewing directions.
    • 本发明涉及一种用于准直来自光源(3)的光的光学元件(2),所述光学元件(2)具有设置成接收所述光的耦合侧(5),出耦合侧(6 )和允许从所述耦合侧(5)延伸到所述输出耦合侧(6)的元件本体,所述元件主体具有垂直于光轴(z)的横截面, 由x-5轴和y轴彼此垂直定义,其中所述光学元件(2)具有沿所述x轴的x曲率和沿所述y轴的y曲率,所述y曲率 大于所述x曲率,从而能够使从所述外耦合侧(6)发射的所述准直光的光分布具有垂直于所述光轴(z)的不对称形状(CE)的横截面。 本发明还涉及包括这种光学元件(2)的照明系统(1)。 本发明的优点在于它可以提供在两个垂直观察方向上具有增加的波束宽度差的不对称光分布。