Contraposition method and optical device

Abstract

The invention discloses a contraposition method and an optical device. The contraposition method comprises the steps that a plurality of lenses and a light combination unit are fixed in a fixed base; a plurality of light-emitting elements are arranged in a plurality of clampers respectively, so that the clampers abut against the fixed base, and the light-emitting elements are allowed to correspond to the lenses in position respectively; the light-emitting elements are turned on, and light beams are combined by the light combination unit after being emitted from the light-emitting elements respectively and penetrating through the lenses; at least part of the light-emitting elements are clamped through jigs respectively so that the positions of the clamped light-emitting elements can be respectively adjusted until the coincidence degree of the light beams combined by the light combination unit meets a preset requirement. In addition, the invention further discloses the optical device.

Description

technical field [0001] The invention relates to an alignment method and an optical device. Background technique [0002] In recent years, with the gradual increase in consumer demand for portable audio-visual devices, projection systems have been trending toward miniaturization. Among them, the pico-projector technology further reduces the size of the projection system, and thus has great market potential. Micro-electromechanical systems (MEMS) using laser light sources in micro-projection technology have the advantages of high image brightness, small size, and less limited projection distance, so they can be applied to portable products such as mobile phones, Notebook computer (laptop), tablet computer (tablet computer), camera, video recorder, portable media player (portable media player, PMP) and other products. However, due to the small size of the micro-projector, it is necessary to adjust the optical path in a limited space so that the beams of multiple laser light s...

AI Technical Summary

Problems solved by technology

However, adjusting the optical axes of multiple laser light sources involves multiple degrees of freedom, so the required jigs and adjustment procedures are too complicated to be mass-produced, and the production cost is also high

At the same time, as the size and distance of the projection screen become larger and larger, the laser light source with increased power is also prone to poor heat dissipation and overheating.

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