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Portable variable-focus-length optical system

An optical system and portable technology, applied in optics, optical components, laser welding equipment, etc., can solve the problems of large glass edge taper, low cutting efficiency, short depth of focus, etc., and achieve improved cutting efficiency, easy packaging and portability, and flexibility strong effect

Pending Publication Date: 2018-03-16
GUANGDONG PONDOOR INTELLIGENT TECH CO LTD
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Problems solved by technology

But limited to the fact that the beam emitted by the laser is a Gaussian beam (a beam with high energy density in the middle and low on both sides), after being focused by the lens, the focal point appears triangular and the focal depth is short (about tens of microns), so cutting glass requires layer by layer Going down, the cutting efficiency is low and the glass edge is tapered

Method used

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  • Portable variable-focus-length optical system
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  • Portable variable-focus-length optical system

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Embodiment Construction

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

A portable variable-focus-length optical system includes a laser generator, a variable-power beam expanding mechanism, a flat-topped beam shaping mechanism and a Bessel beam shaping mechanism. The variable-power beam expanding mechanism, the flat-topped beam shaping mechanism and the Bessel beam shaping mechanism are arranged in sequence along the beam direction of the laser generator. According to the portable variable-focus-length optical system of the invention, the length of the laser focus can be changed by setting the laser generator, the variable-power beam expanding mechanism, the flat-topped beam shaping mechanism and the Bessel beam shaping mechanism. A suitable focus length can be selected according to factors such as the laser power and the thickness of a cutting sample. The beam focusing energy can be homogenized by the flat-topped beam shaping mechanism, so that laser can converge into a needle type processing line with uniform energy, a transparent material can be cut atthe first attempt, and the cutting efficiency is improved. The portable variable-focus-length optical system has the characteristics of being compact in structure, convenient to package and carry, and highly flexible.

Description

technical field [0001] The invention relates to the technical field of laser cutting, in particular to a portable variable focal length optical system. Background technique [0002] In recent years, many transparent inorganic materials have gradually shifted from traditional diamond cutting to laser cutting, such as glass, quartz and sapphire cutting. But limited to the fact that the beam emitted by the laser is a Gaussian beam (a beam with high energy density in the middle and low on both sides), after being focused by the lens, the focal point appears triangular and the focal depth is short (about tens of microns), so the cutting glass needs to be layer by layer Going down, the cutting efficiency is low and the edge of the glass is tapered. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a portable variable focal length optical system, which can elongate a suitable focal length accordi...

Claims

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Application Information

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IPC IPC(8): G02B27/09B23K26/06
CPCG02B27/0916G02B27/0927G02B27/0955G02B27/0977B23K26/0643B23K26/0648
Inventor 邹武兵张德安段家露吴飞龙
Owner GUANGDONG PONDOOR INTELLIGENT TECH CO LTD
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