Abstract: A light source assembly comprises a light pipe, a first color light source at a first tapered light collector, a second light source at a second tapered light collector, and at least a first dichroic filter operative to pass first color light and to reflect second color light toward a light output port. A light valve may be positioned to receive light from the light pipe. One or more light entrances to the light pipe may have a filter, e.g., a short wave pass filter, oriented in a plane generally parallel to the axial optical pathway.

Abstract: A light source assembly comprises a light pipe, a first color light source at a first tapered light collector, a second light source at a second tapered light collector, and at least a first dichroic filter operative to pass first color light and to reflect second color light toward a light output port. A light valve may be positioned to receive light from the light pipe. One or more light entrances to the light pipe may have a filter, e.g., a short wave pass filter, oriented in a plane generally parallel to the axial optical pathway.

Abstract: A color wheel comprises a plurality of light filters mounted on a hub or other mounting surface for rotation. The outer circumferential edge of the filters extend radially beyond the outer circumferential edge of the mounting surface. The mounting surface is beveled at its outer circumferential edge. The filters are mounted by adhesive between each filter and the mounting surface. The adhesive extends into at least a portion of the area between the bevel and the filters. Color wheel assemblies comprise such color wheels mounted to a rotational motor. The outer circumferential edges of the filters are aligned with each other to the same radial distance from the central rotational axis. In certain exemplary embodiments the filters are wedge shaped, having contact with adjacent filters only at their radially outer periphery.