Projection three-dimensional measuring device

A technology of three-dimensional measurement and projection device, which is applied to measurement devices, optical devices, instruments, etc., can solve problems such as slow speed, poor measurement flexibility, and inability to change dynamically, and achieve the effect of improving measurement speed and improving work efficiency.

Active Publication Date: 2010-05-12
厦门思泰克智能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when measuring on both sides, the speed is slow and the efficiency is low
Again, the frequency of the grating on each side is fixed, and only a single frequency of grating structured light can be emitted, which cannot be changed dynamically during the measurement period, and the measurement flexibility is poor

Method used

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  • Projection three-dimensional measuring device
  • Projection three-dimensional measuring device
  • Projection three-dimensional measuring device

Examples

Experimental program
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Embodiment 2

[0021] See attached figure 2 shown.

[0022] Two projection devices 10 are installed on one side of the image acquisition device 20 above the measured object 40 and are evenly distributed. All the other are described with embodiment 1.

[0023] The 10 projection devices from two angles are respectively in different color structured light projection states, and emit monochromatic structured light, which is irradiated on the surface of the measurement object 40 at the same time, and the color CCD20a simultaneously collects the structure reflected from the measurement object 40 and illuminated from two angles Light, the color CCD20a can separate the structured light reflected from two angles, and obtain high-speed shadow-free 3D measurement results after computer processing. Due to the simultaneous shooting of two angles, the work efficiency is greatly improved and the measurement speed is increased.

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Abstract

The invention relates to a projection three-dimensional measuring device, comprising a base, a mounting bracket disposed on the base, a XYZ directional moving apparatus disposed on the base, a measuring head comprising an image collecting apparatus, a projecting apparatus and an annular light source. The projecting apparatus comprises an illuminating unit, a structure light modulating element and a set of projecting lenses, wherein all the parts are orderly disposed in parallel. A controller is disposed in the measuring head. The controller is respectively connected with the image collecting apparatus, the projecting apparatus and the annular light source. The projecting apparatus is at least two projecting apparatuses which can illuminate lights with different colors. The image collecting apparatus is provided with a unit for collecting colorful light signal and converting the colorful light signal into electrical signal. The invention can accurately and rapidly measure the three-dimensional size of the measured object.

Description

technical field [0001] The invention relates to a three-dimensional measuring device, in particular to a three-dimensional measuring device using projection technology. Background technique [0002] At present, the existing shadowless 3D profile measurement technology is a bilateral white light scanning measurement method. The applicant Co., Ltd. Gao Yong Technology, the patent application number is 200480003759.X discloses the following technical features: First, the parallel light generated by the first side light source, the structured light generated by the grating is reflected by the lens and then illuminates the side of the measurement object , the light source on the other side also produces grating structured light, which is reflected by the lens and illuminates the other side of the measurement object. After the grating moves, the light sources on both sides scan alternately and successively. Shadow-free 3D measurement. When the double-sided scanning measurement d...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01B11/25
Inventor姚征远
Owner厦门思泰克智能科技股份有限公司