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Novel laser cutting lens

A technology of laser cutting and lens, applied in the direction of condenser, laser welding equipment, optics, etc., can solve the problem of small focus spot and achieve the effect of small focus spot

Pending Publication Date: 2019-09-24
NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect that the existing lens cannot have a small focus spot and a long focal depth in laser processing, the present invention provides a new type of laser cutting lens

Method used

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  • Novel laser cutting lens
  • Novel laser cutting lens
  • Novel laser cutting lens

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Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 Shown: a new type of laser cutting lens, including a conical lens, a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged in sequence along the light incident direction, the aforementioned five lenses are all positive lenses, And the axicon and all lenses are made of fused silica material.

[0027] The thickness of the axicon is 6 mm, and the apex angle of the axicon is 170°. Along the incident direction of the light, the two sides of the first lens are the first curved surface and the second curved surface in turn; the two sides of the second lens are the third curved surface and the fourth curved surface in turn, and the two sides of the third lens are the fifth curved surface and the sixth curved surface in turn, The two sides of the fourth lens are the seventh curved surface and the eighth curved surface in turn, and the two sides of the fifth lens are the ninth curved surface and the tenth curved surface in turn; the cu...

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Abstract

The invention discloses a novel laser cutting lens. The lens includes an axial cone mirror, a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are successively arranged along an incident direction of light. The first lens, the second lens, the third lens, the fourth lens, and the fifth lens are all positive lenses. By using the novel laser cutting lens, based on a propagation principle of a Bessel beam, a small focal light spot and a long focal depth can be satisfied at the same time. Precise cutting of brittle materials such as glass, ceramics, sapphire and the like can be realized, and ink, PVD and the like on a surface of a material can be removed.

Description

technical field [0001] The invention relates to a novel laser cutting lens, which belongs to the field of cutting lenses. Background technique [0002] Laser cutting and drilling use high-energy-density laser beams to heat the workpiece, so that the temperature rises rapidly and reaches the boiling point of the material in a very short time, and the material begins to vaporize to form steam. The steam is ejected at a high speed. Simultaneously with spraying, a cut is made in the material. Laser cutting is non-contact cutting. Because laser cutting has the advantages of good cutting quality, high cutting efficiency, fast cutting speed, good adaptability, and low post-processing cost, laser cutting and drilling are playing more and more important roles in industrial production and processing. role. [0003] With the development of society, there is a higher demand for the precision and efficiency of material processing. However, there is a major problem in laser processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B19/00G02B27/09B23K26/06
CPCG02B19/0014G02B27/0927G02B27/0955B23K26/0648
Inventor 王静王坚赵科鹏王国力
Owner NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD