Optical engine

Abstract

The invention discloses an optical engine, and belongs to the technical field of projection. The optical engine comprises a light source, an optical-mechanical system and a lens. The light source comprises a light source shell, a light-emitting device and a fluorescent wheel. The fluorescent wheel comprises a fluorescent piece, a heat dissipation plate, a substrate and a driving part. The light-emitting device and the driving part are fixed in the light source shell, the substrate is fixedly connected with a rotating shaft of the driving part, the heat dissipation plate and the fluorescent sheet are sequentially fixed on the substrate, and a light outlet of the light-emitting device faces the fluorescent sheet; the light inlet side of the optical-mechanical system faces the light outlet side of the light source shell; the lens is fixed on the light outlet side of the optical-mechanical system. In the embodiment of the invention, the heat gathered on the fluorescent sheet can be transferred to the heat dissipation plate for heat dissipation, and meanwhile, part of the heat transferred to the heat dissipation plate can be continuously transferred to the substrate for heat dissipation, so that the heat dissipation efficiency of the heat on the fluorescent sheet is improved, the problem of poor transmission imaging effect of the lens is avoided, and the transmission imaging effect of the optical engine is ensured.

Description

technical field [0001] The present application relates to the field of projection technology, in particular to an optical engine. Background technique [0002] With the continuous development of science and technology, optical engines are more and more used in people's work and life, mainly for emitting light beams to transmit images on projection screens. [0003] In related technologies, the optical engine mainly includes a light source, an optical-mechanical system, and a lens. The light source includes a light source housing, a light-emitting device, and a fluorescent wheel. The light-emitting device and the fluorescent wheel are fixed in the light source housing, and the fluorescent wheel is located on the light outlet side of the light-emitting device. , the fluorescent wheel is used to convert the blue light emitted by the light-emitting device into red light and green light, and reflect it to the optomechanical system; The blue light and the red light and green ligh...

AI Technical Summary

Problems solved by technology

In this way, the fluorescent layer is easy to accumulate a large amount of heat per unit time due to receiving high-energy blue light, causing the temperature of the fluorescent layer 1 to be too high, thereby affecting the conversion efficiency of the fluorescent layer 1 to blue light, thereby easily making red light and green light Does not meet the requirements, reducing the transmission imaging effect of the lens

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