Optical elements and projecting system including optical elements
A technology of optical components and projection systems, which is applied to optical components, optical components, electrical components, etc., can solve the problems of low optical coupling efficiency, insufficient light uniformity, uneven brightness of the projection screen, etc., and achieves the effect of reducing the number of components
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[0015] see figure 1 , figure 1 It is a cross-sectional view of a preferred embodiment in which the optical element of the present invention is applied to a light emitting device 100 . The light emitting device 100 includes a light source 120 and an optical element, wherein the optical element includes a light concentrating part 140 and a light guiding part 160 , and the light concentrating part 140 has a refraction surface 142 and a reflection surface 144 . In this embodiment, the light-condensing part 140 and a light-guiding part 160 can be integrally formed or composed of two components, and the light source 120 can be a light-emitting diode (for example: a white light-emitting diode), an array of light-emitting diodes ( For example: composed of red, green and blue light-emitting diodes) and emit light simultaneously or sequentially through control, the light source 120 can also be other light-emitting elements (such as: ordinary light bulbs or solid light-emitting devices)...
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