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

Method for calibrating optical scanner and device thereof

A technology for optical scanners and scanning angles, applied in the direction of using optical devices, optics, optical components, etc., can solve the problems of unfeasible feedback methods, increase the size or volume of optical scanners, etc., and achieve the effect of reducing measurement errors

Inactive Publication Date: 2019-01-15
ADCOLE CORP
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, feedback mechanisms typically require additional cost due to the inclusion of feedback components (e.g., mirrors, electronics, lenses, image sensors) and, equally importantly, will increase the size or bulk of the optical scanner
Feedback methods may not be feasible if the scanner must be compact so that it can fit or measure small recesses in the part

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
  • Method for calibrating optical scanner and device thereof
  • Method for calibrating optical scanner and device thereof
  • Method for calibrating optical scanner and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] refer to figure 1 , shows an example optical scanning system 10 with an example calibration management device 64 . Calibration management apparatus 64 in this example is coupled to optical scanner arrangement 54, which includes a source arm and an imaging arm, both of which can contribute to scanner errors that can be mitigated by the techniques of the present invention. In this example, calibration management device 64 passes through image digitizer 56, digital-to-analog (D / A) converters 60, 66X, and 66Y, light source driver 62, MEMS (microelectromechanical system) X-channel driver 68X, and MEMS Y-channel driver 68Y and Z translation stages 70 are coupled to the optical scanner device 54, although the exemplary optical scanning system 10 may include other types and numbers of devices and components in other configurations. This technique offers several advantages, including a method that facilitates more efficient calibration of three-dimensional optical scanner devic...

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

A method for calibrating an optical scanner device implemented by a calibration management apparatus, includes providing instructions to the optical scanner device to scan a calibration surface in a scan pattern based on one or more scan parameters, wherein the one or more scan parameters vary over the scan pattern. The scanning angle for each of the plurality of points in the scan pattern is computed based on an obtained image of a light source emitted from the optical scanner device at a scanning angle for a plurality of points in the scan pattern. A calibration relationship between the computed scanning angles and the corresponding scan parameters is determined for each of the plurality of points in the scan pattern.

Description

technical field [0001] The present technology relates generally to optical scanning devices and methods, and more particularly, to a method for calibrating an optical scanning device, a non-transitory computer readable medium, and a calibration management apparatus. Background technique [0002] Almost all manufactured objects require inspection after manufacture. Various optical devices have been developed for in-factory and off-factory inspections. Many of these optical devices scan the surface of the part and are able to determine the surface profile of the part with high accuracy. However, as part accuracy and tolerance requirements become more stringent, the measurement accuracy, precision and repeatability of scanning optics must be improved accordingly. As a rule of thumb, the measurement setup should be at least ten times better than the desired surface data, such that the error of the measurement setup has an insignificant effect on the overall error budget. [0...

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 Applications(China)
IPC IPC(8): G02B26/10
CPCG02B26/10G02B26/101G02B27/62G01B11/2504G02B26/0833H04N1/00827G01B11/2518G06T7/85H04N13/236G06T2207/10028G06T2207/20068G06T2210/56
Inventor J·F·芒罗X·张
Owner ADCOLE CORP