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Dual DMD system and evice

A component and signal light technology, which is applied in projection devices, exposure devices for photo-plate making process, optics, etc., can solve problems such as limited optical power, limited system application occasions, and system impossibility, and achieve the effect of energy improvement

Pending Publication Date: 2020-10-16
江苏镭创高科光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing systems use a single DMD element to modulate light. However, due to the limited optical power that a single DMD element can withstand, the system cannot achieve higher brightness and higher power output, which greatly limits the application of the system. occasion

Method used

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  • Dual DMD system and evice
  • Dual DMD system and evice
  • Dual DMD system and evice

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Embodiment Construction

[0032] The above is the core idea of ​​the present invention. In order to make the above-mentioned purposes, 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 in conjunction with the accompanying drawings in the embodiments of the present invention Description, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] An embodiment of the present invention provides a dual DMD system, which can be applied to imaging systems such as projection devices and laser direct writing devices, such as figure 1 As shown, it includes a polarization beam ...

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Abstract

The invention provides a double DMD system and device. The double DMD system comprises a polarizing beam splitter, a first DMD element and a second DMD element. The polarizing beam splitter splits thenon-polarized light into first polarized light and second polarized light, transmits the first polarized light to the first DMD element, and reflects the second polarized light to the second DMD element. The first DMD element modulates the first polarized light to form first signal light. The second DMD element modulates the second polarized light to form second signal light. The polarizing beamsplitter is also used for transmitting the first signal light and reflecting the second signal light so as to output the first signal light and the second signal light. Due to the fact that the energyratio of the first polarized light to the second polarized light is close to 1: 1, compared with a system with a single DMD element, the energy of incident light received by the system with the double DMD elements can be doubled, the energy of output signal light can also be doubled, and therefore the system with the double DMD elements can be suitable for more application scenes.

Description

technical field [0001] The present invention relates to the technical field of laser display, more specifically, to a dual DMD system and device. Background technique [0002] A DMD (Digital Micro-Mirror Device, digital micromirror device) is a kind of optical switch, which uses a rotating mirror to realize the opening and closing of the optical switch. In recent years, DMD has been used more and more widely, and has been widely used in projection display, digital exposure, digital 3D printing and other fields. [0003] Most of the existing systems use a single DMD element to modulate light. However, due to the limited optical power that a single DMD element can withstand, the system cannot achieve higher brightness and higher power output, which greatly limits the application of the system. occasion. Contents of the invention [0004] In view of this, the present invention provides a double DMD system and device to improve the brightness and power of the light emitted b...

Claims

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Application Information

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IPC IPC(8): G02B27/28G03B21/20G03F7/20
CPCG02B27/283G02B27/285G03B21/2073G03F7/70191
Inventor 高文宏郭泽彬
Owner 江苏镭创高科光电科技有限公司