Laser virus killing device based on light beam shaping and refraction and reflection control

A technology of beam shaping and anti-control, which is applied in the direction of disinfection, light water/sewage treatment, special treatment targets, etc. It can solve the problems of missing anti-virus range, poor anti-virus effect, incomplete anti-virus, etc., to achieve improved safety, low resistance, Improve the effect of laser antivirus ability

Pending Publication Date: 2020-11-17
武汉光谷航天三江激光产业技术研究院有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome the safety and efficiency problems of the existing laser anti-virus methods, such as omission of the anti-virus range and incomplete irradiation and incomplete anti-virus, a laser anti-virus device based on beam shaping and refraction control is proposed. The optical path combined with the catadioptric chamber solves the problem of poor anti-virus effect on the flow medium in the prior art, and realizes large-flux, single-cycle air and water sterilization and anti-virus

Method used

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  • Laser virus killing device based on light beam shaping and refraction and reflection control
  • Laser virus killing device based on light beam shaping and refraction and reflection control
  • Laser virus killing device based on light beam shaping and refraction and reflection control

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Embodiment 1

[0036] Such as figure 1 As shown, the present invention is a laser antivirus device based on beam shaping and reflection control, including a laser, a shaping optical path module, and a catadioptric chamber. The laser emits laser light and enters the shaping optical path module. The laser enters the catadioptric chamber again;

[0037] Described laser is ultraviolet laser, and in the present embodiment, ultraviolet laser band is 355nm, and pulse width is not more than 10ps; It is 200nm in another embodiment, is 400nm in another embodiment again, is used for disinfecting bacteria virus;

[0038] The shaping optical path module is used to form the laser beam of the desired shape, and introduce the laser shaping beam into the refraction chamber; the shaping optical path module includes a beam expansion collimation system, a cylindrical surface shaping system, and a beam homogenization optical system, In this embodiment, the output beam of the ultraviolet laser is shaped into a r...

Embodiment 2

[0059] For application scenarios with greater ventilation, short-wave ultraviolet lasers can be used, because the anti-virus threshold of short-wave ultraviolet light is lower, and the size of the light chamber can be increased to increase the ventilation. In this embodiment, a 10W ultraviolet laser with a wavelength of 222nm is used. After being shaped by the cylindrical surface, it becomes a rectangular beam with an aspect ratio of 25, a length direction of 40 cm, and a width of 1.6 cm. The rectangular beam passes through the light inlet of the catadioptric chamber and covers the air inlet of the catadioptric chamber. The distance between the two reflective surfaces is 1m, and the height of the reflective surface of the light chamber is 1.2m. The rectangular beam is reflected 300 times in the catadioptric chamber. Calculated with a reflectivity of 0.99, the total anti-virus power in the light chamber is 95 times the original power. The virus-killing threshold of 222nm ultrav...

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Abstract

The invention discloses a laser virus killing device based on light beam shaping and refraction and reflection control. The laser virus killing device comprises a laser device, a shaping light path module and a refraction and reflection chamber, wherein the laser device emits laser to enter the shaping light path module, and the laser emitted from the shaping light path module enters the refraction and reflection chamber; the laser device is an ultraviolet laser device and is used for disinfecting and killing bacterial viruses; the shaping light path module is used for forming a laser light beam with a required shape and introducing the laser shaped light beam into the refraction and reflection chamber; and the refraction and reflection chamber is used for refracting and reflecting the laser shaped light beam for multiple times to form a multi-layer laser light curtain, so that the laser shaped light beam makes full contact with a space medium inside the refraction and reflection chamber. A shaping light path is used for shaping a light beam into the rectangular light beam to be matched with an inlet section of the refraction and reflection chamber, it is ensured that media such asall air or water entering the refraction and reflection chamber are subjected to radiation virus killing treatment at the same time, no omission exists, and the virus killing sterilization effect canbe achieved by one-time circulation.

Description

technical field [0001] The invention belongs to the technical field of laser purification, sterilization and disinfection, and in particular relates to a laser disinfection device based on beam shaping and reflection control. Background technique [0002] Due to the concealed and highly contagious transmission routes of viruses such as the new crown pneumonia, especially through aerosol transmission, the diseases and epidemics caused by viruses have had a profound impact on our society and economy, posing a threat to the health and life of our people, and also exposed the public Inadequacies in technology and equipment in the health field. There is an urgent need for efficient and safe purification and anti-virus technology to carry out scientific epidemic prevention and disease prevention, build a public health security system under the new situation, and protect people's health. In modern society, it is inevitable to enter and exit large public places such as hospitals, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L9/20F24F3/16C02F1/32
CPCA61L9/20A61L2209/11C02F1/325C02F2201/3226C02F2201/3228C02F2303/04F24F3/16
Inventor 伍晓峰史要涛庞宏俊于临昕周士安于翠萍郭培坤谢俊喜岳帅包春慧
Owner 武汉光谷航天三江激光产业技术研究院有限公司
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