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公开(公告)号:US06478453B2
公开(公告)日:2002-11-12
申请号:US09754170
申请日:2001-01-03
申请人: Liane Lammers , Johannes Petrus Maria Ansems , Antonius Johannes Maria Van Hees , Theodorus Franciscus Mattheus Maria Maas
发明人: Liane Lammers , Johannes Petrus Maria Ansems , Antonius Johannes Maria Van Hees , Theodorus Franciscus Mattheus Maria Maas
IPC分类号: B60Q106
CPC分类号: F21V29/74 , F21S6/002 , F21V5/008 , F21V5/048 , F21V7/0091 , F21V14/06 , F21V21/06 , F21V29/767 , F21W2131/406 , F21Y2115/10 , G02B19/0028 , G02B19/0061 , G02B27/0944 , G02B27/425 , G03B21/2033 , G03B21/208
摘要: A luminaire for projecting an image comprises a housing (1) having a light emission window (2). The housing (1) accommodates a light source (3), an optical system (4) for directing light originating from the light source (3) along a longitudinal axis (5), and an image-forming surface (6) which is positioned orthogonally with respect to the longitudinal axis (5). According to the invention, the light source is a LED (3), and the optical system (4) comprises a collimating element (14) for collimating the light originating from the LED (3). Preferably, the luminaire comprises only one LED (3) which, during operation, has a luminous flux of at least 5 lm. Preferably, the housing (1) also comprises a focusing lens (15) for focusing the collimated light originating from the collimating element (14) on the image-forming surface (6) and, preferably, a projection lens (7, 7′) for projecting an image of the image-forming surface (6). Preferably, parts of the collimating element show total internal reflection. The luminaire according to the invention is a compact, lightweight, low-energy and low-maintenance luminaire.
摘要翻译: 用于投影图像的照明器包括具有发光窗口(2)的壳体(1)。 壳体(1)容纳光源(3),用于沿着纵向轴线(5)引导源自光源(3)的光的光学系统(4)以及定位在其上的图像形成表面(6) 相对于纵向轴线(5)正交。 根据本发明,光源是LED(3),并且光学系统(4)包括用于准直来自LED(3)的光的准直元件(14)。 优选地,照明器仅包括一个LED(3),其在操作期间具有至少5lm的光通量。 优选地,壳体(1)还包括用于将来自准直元件(14)的准直光聚焦在图像形成表面(6)上并且优选地将投影透镜(7,7')聚焦的聚焦透镜(15) 用于投影图像形成表面(6)的图像。 优选地,准直元件的部分显示全内反射。 根据本发明的照明器是紧凑的,重量轻的,低能量的和低维护的灯具。