Projector lens assemblies and projectors

Abstract

A projector lens assembly and a projector, the projector lens assembly includes a reflector, a mounting assembly, a drive structure, a first drive assembly, a first bracket and a first lens group, the reflector is arranged on the mount assembly, and the reflector is used for The projected picture is projected to the target position, the driving structure is used to drive the mounting assembly to drive the reflector to rotate, so as to correct the projected picture at the target position, the first lens group is arranged on the first bracket, and the first driving component is used to drive the first bracket Drive the first lens group to move close to or away from the reflector to make the focus clear. The driving structure drives the mounting assembly to drive the reflector to rotate, and adjusts the reflection direction of the reflector to eliminate the distortion of the projection screen. The first drive assembly drives the first bracket to drive the first lens group with focusing function to move closer to or away from the reflector. , to complete the focusing, so as to realize the focusing function and the correction function of the projected picture at the same time.

Description

technical field [0001] The invention belongs to the technical field of projection, and in particular relates to a projector lens assembly and a projector with the projector lens assembly. Background technique [0002] The ultra-short-throw projector is one of the mainstream projection solutions for smart projection and laser TV products. Its main advantage is that it can project a large enough picture at a short distance. Compared with other mid-telephoto projectors, this This projection method can significantly save projection space, and the projector can be placed directly close to the curtain or wall. However, due to the imaging principle and complex optical structure of the ultra-short-throw projection, it is also very sensitive to the placement position, and a slight placement error may lead to large picture distortion. [0003] The current ultra-short-throw projectors cannot realize autofocus and correction of image distortion at the same time, and it is necessary to ...

AI Technical Summary

Problems solved by technology

However, due to the imaging principle and complex optical structure of ultra-short-focus projection, it is also very sensitive to the placement position, and a slight placement error may lead to large picture distortion

[0003] The current ultra-short-throw projectors cannot realize auto-focus and correction of image distortion at the same time. It is necessary to manually adjust the position of the ultra-short-throw projector for correction, which is not only inefficient, but also the correction effect is not ideal.

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