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Novel laser scanning optical system with adjustable scanning breadth

A technology of laser scanning and optical system, which is applied in the field of laser scanning processing, can solve the problem that the scanning range of the F-θ field mirror cannot be changed, and achieve the effect of reducing the cost of laser scanning, solving the problem that the scanning range cannot be changed, and the focus spot is round

Pending Publication Date: 2020-10-30
NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD
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Problems solved by technology

[0004] The invention provides a new type of laser scanning optical system with adjustable scanning width. The size of the scanning width can be adjusted, which has stronger compatibility and adaptability, and solves the problem that the scanning range of the existing F-θ field mirror cannot be changed; the structure is simple , greatly reducing the cost of laser scanning

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  • Novel laser scanning optical system with adjustable scanning breadth
  • Novel laser scanning optical system with adjustable scanning breadth
  • Novel laser scanning optical system with adjustable scanning breadth

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Embodiment Construction

[0022] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

[0023] Such as figure 1 Shown: a new type of laser scanning optical system with adjustable scanning format, including the first lens, the second lens, the third lens, the vibrating mirror X, the vibrating mirror Y and the working platform arranged in sequence along the light incident direction; the first lens The meniscus lens with a negative focal length has a focal length of -37.6 mm; the second lens and the third lens are plano-convex positive lenses, and the focal lengths of the second lens and the third lens are both 311 mm. The optical parameters of each lens are shown in Table 1.

[0024] Table 1 Optical parameter table of each lens

[0025]

[0026] In the above table, the two sides of the first lens are the first object si...

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Abstract

The invention discloses a novel laser scanning optical system with an adjustable scanning breadth. The novel laser scanning optical system comprises a first lens, a second lens, a third lens, a galvanometer lens X and a galvanometer lens Y which are sequentially arranged in the light incident direction, wherein the first lens is a meniscus lens with a negative focal length, and the focal length change range is -30mm to -50mm; the second lens and the third lens are plano-convex positive lenses, and the focal length change ranges are both 200mm-500mm. According to the novel laser scanning optical system with the adjustable scanning breadth, by means of the optical lever principle, the size of the scanning breadth is adjustable, the system is suitable for working platforms of different sizes,higher compatibility and adaptability are achieved, marking of metal, PCBs, cloth and other materials can be achieved, and the problem that the scanning range of an existing F-theta field lens cannotbe changed is solved; the scanning effects of different breadths are good, and focusing light spots are very round; and the structure is simple, and the laser scanning cost is greatly reduced.

Description

technical field [0001] The invention relates to a novel laser scanning optical system with adjustable scanning width, which belongs to the field of laser scanning processing. Background technique [0002] Laser processing uses the energy of light to reach a high energy density at the focal point after being focused by a lens, and is processed by the photothermal effect. It has the advantages of high processing efficiency, good adaptability, and good effect. [0003] As laser processing technology plays an increasingly important role in industrial production, ordinary F-θ field mirrors can only achieve a specific range of scanning areas due to the influence of fixed focal lengths, such as a scanning format of 400mmX400mm. Therefore, customers need F-θ field mirrors with different scanning formats for machines with different working planes. Contents of the invention [0004] The invention provides a new type of laser scanning optical system with adjustable scanning width. T...

Claims

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Application Information

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IPC IPC(8): G02B13/00
CPCG02B13/0005
Inventor 王静王坚吴玉堂王国力
Owner NANJING WAVELENGTH OPTO ELECTRONICS SCI & TECH CO LTD
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