KR20120124083A

KR20120124083A - Device and method for Machine Vision Optic Systems.

Info

Publication number: KR20120124083A
Application number: KR1020110041725A
Authority: KR
Inventors: 박용범
Original assignee: 주식회사대신아이텍
Priority date: 2011-05-03
Filing date: 2011-05-03
Publication date: 2012-11-13

Abstract

PURPOSE: A device and method for effectively changing an optical path are provided to conveniently fit a CCD(Charge Coupled Device) and a central axis of an object under test on an optical path which is intricately refracted. CONSTITUTION: An optical path is changed to the upper and lower sides by tightening or releasing a bolt(310) when the optical path is twisted to the upper and lower sides with an object under test as the center. The optical path is changed to the right and left sides by tightening or releasing bolts(300,320) when the optical path is twisted to the right and left sides with the object under test as the center. A spring is used for changing the optical path with large angle.

Description

Effective device for changing optical path of machine vision optical system and device therefor. {Device and method for Machine Vision Optic Systems.}

In machine vision, the optical path is one of the most important factors in obtaining accurate images. However, the more complex the optical path is refracted, the more difficult it is to center the CCD of the camera with the inspection object.

In the present invention, a device and a method of using the same have been invented so that the center axis of the CCD and the inspection object can be conveniently aligned even on a complex refracted optical path.

Advantageous Effects of the Invention The effect of the present invention enables easy fine adjustment of the machine vision optical system to shorten the optical path adjustment time.

1 is an illustration of an apparatus for changing an optical path.
Figure 2 is a side view of the optical path changing device and the appearance of the bolt for adjusting it.
3 is a view of a device for changing the light path at many angles.
4 is a view and a perspective view of the upper portion of FIG.
5 is a view of the side and the rear portion of FIG.

As shown in the figure, when the refraction of one or more optical paths needs to be made for the machine vision inspection of the target sample, the conventional method simply processes the workpieces corresponding to (110) and (140) at an angle, and then attaches them with mirrors. It became. However, such a workpiece is difficult to be precisely processed accurately, and the position of the CCD is also slightly different depending on the manufacturer of the CCD camera, making it difficult to form an accurate optical path. In the present invention, these points were made as shown in Figs. 1 and 3 to solve the above problems by making the adjustment device using the bolt. The operation method is to change the optical path up and down by tightening or releasing the bolt (310) when the optical path is shifted up and down with respect to the object to be viewed. Tighten or loosen the 320 to change the light path from side to side. However, the adjustment of the angle using only the shape of the workpiece and the bolt only changes the amount of change in the optical path depending on the characteristics of the material of the workpiece. Thus, in the present invention, the device of the type shown in FIG. 3 can be changed by using a spring device such as 500 to move many angles. In the operation method, when the optical path of 150 is slid left and right with respect to the object, the bolts of 610 and 630 are tightened or loosened to adjust left and right, and then the bolt of 640 is fixed. . The function of 640 is that the spring device made to derive many angles can be deformed to the external impact, so to prevent this by tightening the bolt of 640 to avoid deformation. In addition, to adjust the angle of the up and down is to adjust the upper and lower bolts of (600) and (620).

100 CCD Camera
110 light path adjuster
120 light path
130 CCD camera
140 light path adjuster
200 mirror
Front view of the 210 optical path adjuster
Rear view of 220 light path adjuster
300 bolts to tilt the mirror to the bottom left
310 bolt to tilt the mirror forward
320 Bolt to tilt the mirror to the bottom right
Mechanisms to move the mirror by deformation by 330 volts
Mechanism to move the mirror by deformation by 400 volts
410 mirror
Bolts and springs to adjust the light path left and right
510 Tab to lock after adjustment
Perspective view of bolts and springs adjusting the light path from side to side
Perspective view of bolts that adjust the 530 light path up and down
Figure of bolt adjusting 600 light path up and down
610 Bolt to adjust the light path from side to side
620 bolts adjust the light path up and down
630 bolt to adjust the light path from side to side
Side view of the bolts that finish and fix the 640 light path

Claims

In the present invention, the shape is processed into a "c" shape as shown to adjust the mirror and the like used to change the light path.

A method of changing the angle using bolts to adjust the angle of the mirror.

Apparatus made by claims 1 and 2.

A method for solving a problem using springs when more angled movements are required compared to claim 1.

Apparatus made using claim 4