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An optical engine and a projection device

A technology of light machine and engine, which is applied in the fields of optics, instruments, projection devices, etc.

Active Publication Date: 2022-06-07
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems existing in the above-mentioned prior art, an embodiment of the present invention provides an optical engine and a projection device, which can effectively eliminate the forced vibration of the entire projection device caused by the vibration of the vibrating mirror without affecting the image quality. Solve the noise problem, and the structure is simple and the cost is low

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  • An optical engine and a projection device
  • An optical engine and a projection device
  • An optical engine and a projection device

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Embodiment Construction

[0024] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that featu...

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Abstract

The invention provides an optical engine and projection equipment, which relate to the field of projection equipment and are invented to solve the problems in the prior art that may affect the picture quality, cannot effectively eliminate the influence of vibration, and still cause noise. An optomechanical engine, comprising a vibrating mirror, a bracket and a mounting housing, the vibrating mirror is fixed on the bracket, the bracket is provided with a first mounting hole, and a first fastener passes through the first mounting hole The hole is fixed with the installation housing, so as to fix the bracket on which the vibrating mirror is fixed on the installation housing, and a first vibration damping pad is provided in the first installation hole, when the bracket After being fixed with the installation shell, the first vibration-damping pad isolates the first fastener from the bracket, and the first vibration-damping pad is in a natural state. The invention is used in the production of projection equipment.

Description

technical field [0001] The present invention relates to the field of projection equipment, in particular to an optical engine and projection equipment. Background technique [0002] Projection devices include LCD (Liquid Crystal Display) projectors, DLP (Digital Light Processing, digital light processing) projectors, and the like. The core device in DLP projection equipment is DMD (Digital Micromirror Device). Due to space and technical limitations, the current projection equipment cannot achieve 4K resolution (4096×2160 pixel resolution) through DMD chips alone. To achieve 4K resolution, a galvanometer is required. Galvo is a flat lens structure located between the DMD chip and the projection lens, which deflects vibrations. The current implementation scheme of home 4K DLP projector is the structure of DMD chip and galvanometer, in which the working principle of the galvanometer is to increase the lower original ecological resolution to 4K through its high-frequency vibra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14
CPCG03B21/145G03B21/14
Inventor 侯乃文
Owner QINGDAO HISENSE LASER DISPLAY CO LTD