Laser system, working method and projection system

Abstract

The invention relates to a laser system, a working method and a projection system. The laser system comprises a laser source, a collimation system and a self-focusing system, wherein the laser source transmits a monochromatic laser beam; the collimation system collimates the laser beam transmitted by the laser source; and the self-focusing system focuses the laser beam which is emergent from the collimation system. The invention adopts the laser source as the light source of the projection system, and the laser source has long service life, small volume, low power consumption, wide colour gamut, high brightness, environmental protection, easy mass production and low cost. In addition, the self-focusing system is adopted in the laser system to focus the laser beam, the focusing capability is stronger, light spots are smaller, energy is more concentrated, and the laser efficiency is higher.

Description

technical field [0001] The invention relates to a projection system and a projection method, in particular to a laser system, a working method and a projection system. Background technique [0002] With the development of optical technology and projection display technology, digital projection systems capable of outputting high resolution and large screens have become indispensable in providing visual images in corporate presentations, conference activities, education and training, and even home entertainment. The missing link. Therefore, from birth to the present, the projection system has continuously developed towards high image quality, high brightness, and compact size. [0003] Existing projection systems use light emitted from a light source to form an image on a display panel, enlarge the image through a projection lens unit, and project the image on a screen to meet viewers' requirements for a large-scale screen. Specifically, such as the technical content disclos...

AI Technical Summary

Problems solved by technology

[0005] However, existing projection systems usually use halogen lamps as light sources, but the disadvantages of halogen lamps are that their large size hinders the development of projection systems to small volumes, and the manufacturing unit is expensive, with strong heat radiation and short average lifespan.

Therefore, light-emitting diodes (LEDs) are gradually used instead of halogen lamps as the light source of the projection system, but the efficiency of LEDs is low, the heat radiation is strong, and the colors are not rich

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