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Dynamic diffuser assembly and control method, laser speckle dissipation device, projector

A technology of dynamic diffusion and components, which is applied in the field of laser projection, can solve the problems of affecting the effect of speckle elimination and the inability to maximize the application area, and achieve the effect of large coverage area, automatic intelligent control, and good effect of speckle elimination

Active Publication Date: 2022-04-22
SHENZHEN HUOLE TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The first purpose of the present disclosure is to provide a dynamic diffuser assembly, which can solve the technical problem that the existing rotary diffuser cannot maximize the application area and affect the overall effect of speckle removal

Method used

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  • Dynamic diffuser assembly and control method, laser speckle dissipation device, projector
  • Dynamic diffuser assembly and control method, laser speckle dissipation device, projector
  • Dynamic diffuser assembly and control method, laser speckle dissipation device, projector

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Embodiment Construction

[0035] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0036] In this disclosure, the use of orientation words such as "upper", "lower", "top", "bottom", "left", "right" generally refer to the It is defined when the dynamic diffuser is in normal use. For details, please refer to Figure 4 and Figure 5 In the directions shown in the drawings, "inside" and "outside" refer to the inside and outside of the outline of the corresponding component. In addition, when the following description refers to the drawings, the same reference numerals in different drawings indicate the same or similar elements.

[0037] The present disclosure provides a dynamic diffuser assembly, such as figure 1 and figure 2 As shown, th...

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Abstract

The disclosure relates to a dynamic diffuser assembly and a control method, a laser speckle elimination device, and a projector. The dynamic diffuser assembly includes a fixed layer and a moving layer on which an optical diffuser is installed, and also includes a drive unit and a control unit connected to the drive unit. The drive unit is configured to drive the moving layer to move relative to the fixed layer along a first direction and a second direction in a plane parallel to the optical diffusion sheet. The dynamic diffuser assembly adopts a layered arrangement, the fixed layer remains stationary, the driving part drives the mobile layer to drive the optical diffuser to move in two directions, a certain point on the optical diffuser has two-dimensional movement flexibility, and Compared with the traditional rotary diffuser, it has a larger coverage area, and can make full use of the different phase divergence angles on the optical diffuser. In the case of the same size, the actual area used is larger, and the area utilization of the dynamic diffuser is improved. The efficiency can better reduce the coherence of the laser and achieve a better speckle effect.

Description

technical field [0001] The present disclosure relates to the technical field of laser projection, in particular, to a dynamic diffusion sheet assembly and a control method, a laser speckle elimination device, and a projector. Background technique [0002] Laser projection display technology can most truly reproduce the rich and brilliant colors of the objective world and provide shocking expressiveness. Among them, eliminating speckle is a relatively popular research topic in laser projection technology. In the existing laser speckle elimination device, multiple groups of diffusion sheets are set at different positions of the optical path to achieve the effect of speckle elimination. [0003] Diffusers are divided into static diffusers and dynamic optical diffusers (Dynamic Optical Diffuser). The existing dynamic diffusers are mostly in the form of rotating diffuser wheels. In the case of , increasing the number of random phases of the diffuser per unit time can obtain a be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/14G03B21/20G02B27/09G02B27/48
CPCG03B21/14G03B21/208G02B27/0933G02B27/48
Inventor 胡震宇欧阳剑常征
Owner SHENZHEN HUOLE TECH DEV CO LTD
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