Correction method of large-format laser scanning system

A technology of laser scanning and correction method, which is applied in optics, optical components, and optical devices, etc., can solve the problems of low precision of large-scale scanning galvanometer systems, and achieve the effect of less tools and low cost

Inactive Publication Date: 2020-04-28
江苏华工激光科技有限公司
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to overcome the problem of low pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Correction method of large-format laser scanning system
  • Correction method of large-format laser scanning system
  • Correction method of large-format laser scanning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0025] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of laser precision machining, and particularly provides a correction method of a large-format laser scanning system, which comprises the following steps: acquiring a theoretical coordinate system of an imaging coordinate format of the laser scanning system, and setting array marks on the imaging coordinate format to uniformly and equally divide the imaging format; arranging a flat plate on a laser focusing plane of the laser scanning system, adjusting laser parameters according to coordinates of the array marks in the theoretical coordinate system to emit laser, and making the marking points of the array marks on the flat plate in a one-to-one correspondence mode; scanning the flat plate to obtain an electronic image with the marking points; andacquiring an actual coordinate system of each marking point in the electronic image, comparing the actual coordinate system with a theoretical coordinate, and outputting a correction compensation value of each marking point in the theoretical coordinate system. According to the scheme, the cost is low, the influence of a mechanical structure on the correction precision is avoided, new factors influencing the correction precision are not introduced, and correction can be carried out anytime and anywhere.

Description

technical field [0001] The invention belongs to the technical field of laser precision machining, and in particular relates to a correction method for a large-format laser scanning system. Background technique [0002] At present, the scanning galvanometer system has become the mainstream technology in the field of laser marking due to its excellent performance. However, as the requirements for laser processing refinement become higher and higher, strict requirements are put forward for the processing accuracy of the scanning galvanometer. Especially in some occasions, both a large processing area and high precision are required. As a result, when the scanning galvanometer is calibrated, the number of points to be collected is doubled, and the number of corrections is also doubled. It takes high time and labor costs to achieve high-precision calibration. [0003] There are two conventional calibration methods for scanning galvanometer systems. One is manual measurement with...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B26/10G01B11/00
CPCG01B11/002G02B26/10
Inventor 王建刚董义徐章地王亮周宇李创业
Owner 江苏华工激光科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap