Unlock instant, AI-driven research and patent intelligence for your innovation.

A device and method for measuring out-of-plane displacement of a mirror surface based on geometric optics

A technology of geometric optics and displacement measurement, applied in measurement devices, optical devices, instruments, etc., can solve problems such as time-consuming inspections

Active Publication Date: 2018-05-18
HARBIN ENG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many types of glass flatness testing instruments, which can be basically divided into mechanical measurement and optical measuring instruments. Among them, optical measuring instruments are widely used and have high precision, but the current measurement method mainly adopts point-by-point scanning. Check is more time-consuming

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
  • A device and method for measuring out-of-plane displacement of a mirror surface based on geometric optics
  • A device and method for measuring out-of-plane displacement of a mirror surface based on geometric optics
  • A device and method for measuring out-of-plane displacement of a mirror surface based on geometric optics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The purpose of the present invention is to provide a low-cost, practical and easy-to-install device for measuring out-of-plane displacement of a mirror surface based on geometric optics.

[0031] The purpose of the present invention is achieved like this: figure 1 , in the figure: 21-target mirror, 22-monitoring mirror, 13-illumination system, 27-camera, 210-computer), a monitoring mirror 22 is placed in parallel with respect to the objective mirror 21, requiring that the surfaces are parallel to each other and not mutually There is a torsion angle, which ensures multiple reflections of light on the two mirror surfaces. The lighting system 13 is arranged in a square to ensure that at least four point light sources are installed at the corners. When the point light source is lit, the light is repeatedly reflected on the two mirror surfaces. Camera 27 shoots, in computer 210, you can see the multi-level dot matrix produced, each level of dot matrix is ​​on the corner of t...

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

No PUM Login to View More

Abstract

The invention discloses a mirror surface out-plane displacement measurement device and method based on geometrical optics. The method comprises the steps that light information is provided by a point lighting system, light is repeatedly reflected on two mirror surfaces, an image collection device is utilized for obtaining digital images with mirror surface out-plane displacement information, a target mirror is replaced, the multiple digital images are collected, and then out-plane displacement of the mirror surfaces is obtained by comparing and analyzing light point position changes on the digital images. According to the novel planeness measuring device, high-precision planeness detection can be completed, and the device has the advantages of being capable of achieving whole-scene detection, flexible and convenient to use and high in detection speed.

Description

technical field [0001] The invention belongs to the field of flatness error measurement, and in particular relates to a geometric optics-based measuring device for out-of-plane displacement of a mirror surface and a measuring method thereof. Background technique [0002] With the rapid development of scientific research, the demand for high-precision large-size glass workpieces is increasing, and the requirements for the measurement accuracy of workpieces and flatness errors in the manufacturing industry are also getting higher and higher, which leads to the creation of an engineering practice. The easy-to-apply out-of-plane displacement detection method for medium and large flat glass is of great significance. [0003] At present, there are many types of glass flatness testing instruments, which can be basically divided into mechanical measurement and optical measuring instruments. Among them, optical measuring instruments are widely used and have high precision, but the cu...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/30
CPCG01B11/30
Inventor 曲嘉李东昌孙晓庆黄超庞跃钊高申煣夏培秀
Owner HARBIN ENG UNIV