Light combination light source device and projection system

Abstract

The invention discloses a light-combining light source device, which is characterized in that a basic light source module emits a first path of light formed by combining three primary lights, an additional light source module is used for emitting any one primary light of the three primary lights, and at least one additional light source module emits at least one primary light; the light combining part obtains the first path of light and the emergent light of the additional light source module, and converges and outputs the first path of light and the emergent light of the additional light source module. According to the light-combining light source device, the primary light is emitted by adopting another light source module, so that the primary light is increased and combined into the combined light of the three primary lights, and the brightness of the output light is improved. Compared with the existing mode of increasing the brightness by exciting the light-emitting substance to generate colored light, the light-combining light source device can more effectively increase the brightness of the output light, so that the light-combining light source device can effectively improve the brightness of the output light, and can improve the brightness of the projection system when being applied to the projection system. The invention further discloses a projection system.

Description

technical field [0001] The invention relates to the technical field of optical systems, in particular to a combined light source device. The invention also relates to a projection system. Background technique [0002] The application of projectors is becoming more and more extensive and common, such as in conferences, teaching, entertainment, etc., and subsequently, users have higher and higher requirements on the performance indicators of projectors. Among them, brightness is one of the important indicators of the projection system. In the current technical stage, R&D personnel improve the brightness of the projection system by increasing the brightness of the light source of the projection system. [0003] The traditional bulb light source is gradually eliminated due to its short life and poor color effect, and then a light source that uses three primary colors for light synthesis has emerged. This light source has great advantages in color effect, life, and environmental...

AI Technical Summary

Problems solved by technology

Although this light-combining solution excites the green phosphor to increase the green brightness by adding a blue light, the improvement efficiency of this method is not high. In actual use, the improvement efficiency of green light is often below 50%.

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