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    • 1. 发明公开
    • Optical combiner and image projector using the optical combiner
    • Optischer Strahlvereininger und Bildprojektor
    • EP2239615A1
    • 2010-10-13
    • EP10157947.2
    • 2010-03-26
    • Sumitomo Electric Industries, Ltd.
    • Iyoda, YoshitomoInoue, AkiraSano, TomomiTakushima, MichikoShimazu, Takayuki
    • G02B27/10G02B27/14H04N9/31
    • G02B27/104G02B3/08G02B27/148H04N9/3129H04N9/3164
    • An optical combiner (10) in which fewer parts are used comprises an optical component (12) and a plastic body (14). The component comprises: a first filter (12b) reflecting first light (L1) having a first wavelength and being transparent to second light (L2) having a second wavelength and third light (L3) having a third wavelength; a second filter (12c) reflecting second light (L2) and being transparent to third light (L3); and a base (12a) transparent to second light (L2) and third light (L3). The first filter (12b) and the second filter (12c) are provided on opposed surfaces of the base (12a). The plastic body (14) has first, second, and third surfaces (14a,b,c), and the first surface provides first (16a), second (16b), and third (16c) lenses. The component is provided in the plastic body such that light from the first lens is connected to a path to the second surface (14b) through the first filter and light from the second lens is connected to the path through the second filter. The third surface (14c) is a reflecting surface for connecting light from the third lens to the path.
    • 其中使用较少部件的光学组合器(10)包括光学部件(12)和塑料体(14)。 该组件包括:第一滤光器(12b),其反射具有第一波长并且具有第二波长的第二光(L2)和具有第三波长的第三光(L3)的第一光(L1)的第一光(L1) 反射第二光(L2)并对第三光(L3)透明的第二滤光器(12c); 以及对第二光(L2)和第三光(L3)透明的基底(12a)。 第一过滤器(12b)和第二过滤器(12c)设置在基部(12a)的相对表面上。 塑料体(14)具有第一,第二和第三表面(14a,b,c),第一表面提供第一(16a),第二(16b)和第三(16c)透镜。 该部件设置在塑料体中,使得来自第一透镜的光通过第一过滤器连接到通向第二表面(14b)的路径,并且来自第二透镜的光连接到通过第二过滤器的路径。 第三表面(14c)是用于将来自第三透镜的光连接到路径的反射表面。