TWM505580U - Fill light structure of inspection machine - Google Patents

Description

Detecting machine's fill light structure

The creation system is a fill light structure, in particular, a fill light structure capable of providing a multi-angle light source to compensate the detection machine of the object to be tested.

At present, the image acquisition system of a CCD (Couple Charged Device) camera has been widely used for various detections of objects, such as object shape inspection, color resolution, surface flaw and size analysis, and the like. The detection method generally uses a CCD camera to take an image, and then performs image comparison through computer image processing technology, thereby achieving various detections of the object.

Since the detection system is interpreted according to the image of the object obtained by the CCD camera, the image quality is very important, and the image quality depends on the matching light fixture, in addition to the resolution of the camera. When the fill light area provided by the light-filling device is insufficient, if the area that is not filled with light is defective, the detection rate is also lowered.

The light-filling device must make the characteristics of the object to be detected more obvious, for example, to provide uniform brightness to the surface of the object to be tested, so as to achieve accurate detection results. Since the conventional light-filling device has only a single light source, the light source for projecting the light-filling device to the detecting object is limited, and the local area of many detecting objects does not even receive the fill light.

As shown in Figs. 1 and 2, Fig. 1 is a top view of a conventional ring-shaped object, and Fig. 2 is a schematic cross-sectional view of the ring-shaped object of Fig. 1 taken along the line A-A'. When the ring-shaped object 10 is, for example, an O-ring to be detected, the conventional light-filling device has only a single light source, and the light source is projected onto the ring-shaped object 10 by the light source area X, and the light source area X is outside the two sides. The area does not receive fill light, resulting in a defect in the area that is not filled, which will result in a lower detection rate.

The creation system provides a fill light structure for detecting the machine, which is to provide a light source with different angles to generate a larger fill light area to give the object to be tested, so that the defect of the object to be tested can be detected more highly during the test. Out rate.

The present invention provides a fill light structure for detecting a machine, which is formed by a plurality of annular light sources, and the annular light source is disposed on different planes, and the light projection area of any two adjacent annular light sources is The edge system presents a distance relationship.

With the implementation of this creation, the following advancements can be achieved:

First, a larger fill area can be provided by a ring light source of different planes.

Second, the object to be tested can obtain consistent brightness compensation.

In order to make any skilled person understand the technical content of the present invention and implement it according to the content, patent application scope and drawings disclosed in the specification, any skilled person can easily understand the purpose and advantages related to the creation. Therefore, the detailed features and advantages of the present invention will be described in detail in the embodiments.

10‧‧‧ ring objects

100‧‧‧Testing machine

110, 120, 130‧‧‧ ring light source

111‧‧‧LED light source

112‧‧‧LED

140‧‧‧Testing platform

150‧‧‧Base

200‧‧‧ fill light structure

1 is a top view of a conventional ring-shaped object; FIG. 2 is a schematic cross-sectional view of the ring-shaped object of FIG. 1 taken while detecting A-A'; FIG. 3 is a detecting machine of the present embodiment. FIG. 4A to FIG. 4B are schematic diagrams of a ring light source of various different embodiments; and FIG. 5 is a ring object of FIG. 1 of the present embodiment. A schematic cross-sectional view of A-A' at the time of detection.

As shown in FIG. 3, this embodiment is a fill light structure 200 for detecting the machine table 100. The fill light structure 200 is formed by a plurality of annular light sources 110, 120, 130 and is disposed on different planes. In the present embodiment, three annular light sources 110, 120, 130 are taken as an example, but are not limited thereto. The annular light sources 110, 120, 130 are fixed on the base 150 of the testing machine 100 and are respectively disposed on different planes.

As shown in Figures 4A through 4B, it is a schematic illustration of a ring light source for various different embodiments. In this embodiment, the annular light source 110 is taken as an example to describe various embodiments thereof. However, the implementation of the annular light source 120 or the annular light source 130 may be the annular light source 110. Same or different, so I won't go into details.

As shown in FIG. 4A, in order to make the light source of the fill light sufficient, the annular light source 110 can be provided with at least one plurality of LEDs 112 arranged in a ring shape. As also shown in FIG. 4B, the annular light source 110 can be provided with a plurality of LEDs 112 arranged in a three-ring ring shape.

The annular light sources 110, 120, 130 may be provided in different types, such as a two-layer architecture, which may be designed to include a first annular light source 110 and a second The annular light source 120, the first annular light source 110 and the second annular light source 120 can be designed to have one and the same central axis, and the first annular light source 110 is disposed above the second annular light source 120. And the radius of the first annular light source 110 is smaller than the radius of the second annular light source 120.

The annular light source 110, 120, 130 can also be designed as a three-layer structure. The annular light source further includes a third annular light source 130, a third annular light source 130 and a first annular light source 110 and a second ring. The light source 120 has the same central axis, the third annular light source 130 is disposed below the second annular light source 120, and the radius of the third annular light source 130 is greater than the radius of the second annular light source 120.

The light-filling area of the annular light source 110, 120, 130 is determined according to the relationship between the projected areas of the two adjacent light sources. In this embodiment, the edges of the light projection areas of any two adjacent annular light sources 110, 120, 130 exhibit a distance relationship, by different The distance relationship can produce different projection areas and different light projection patterns.

The distance relationship may be a distance unit of a zero value, that is, at this time, the projected areas of the annular light sources 110, 120, 130 form complementary light blocks. Further, the distance relationship may be a distance unit of a negative value, that is, at this time, the projected areas of the annular light sources 110, 120, 130 form complementary light patches that partially overlap each other.

As shown in FIG. 5, when the object to be tested is an annular object 10 such as an O-ring, the annular object 10 will be placed on the detection platform 140 when the detection is performed, and the light source of the annular light source 110 is projected to the annular object 10. The light source area is X, and the light source projecting with the annular light source 120, 130 will form a complementary light of the light source area Y, so that the projection area of the light source is greatly increased.

During the detection, the annular object 10 is compensated by a large area of the light source, which can increase the effective imaging area of the CCD camera, and by means of automatic optical detection technology, This will effectively increase the detection rate of the Failed object.

With the fill light structure 200 of the detecting machine 100 of the embodiment, the brightness of the light source of the ring light source 110, 120, 130 can be individually adjusted to compensate different light sources for different materials to be tested, so that the object to be tested can be consistent. Brightness.

However, the above embodiments are intended to illustrate the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement it, and not to limit the scope of the patent of the present invention. Equivalent modifications or modifications made by the spirit of the disclosure should still be included in the scope of the claims described below.

100‧‧‧Testing machine

110, 120, 130‧‧‧ ring light source

140‧‧‧Testing platform

150‧‧‧Base

200‧‧‧ fill light structure

Claims (8)

A fill light structure for detecting a machine, which is formed by a plurality of annular light sources, which are disposed on different planes, and the edge of the light projection area of any two adjacent annular light sources Present a distance relationship. The fill light structure of claim 1, wherein the annular light source is an LED light source. The fill light structure of claim 1, wherein at least one of the annular light sources is provided with at least one annular LED. The fill light structure of claim 1, wherein at least one of the annular light sources is provided with a plurality of LEDs having at least three rings arranged in a ring shape. The fill light structure of claim 1, wherein the annular light source comprises at least a first annular light source and a second annular light source, the first annular light source and the first The two annular light sources have the same central axis, the first annular light source is disposed above the second annular light source, and the radius of the first annular light source is smaller than the second annular light source radius. The fill light structure of claim 5, wherein the annular light source further comprises a third annular light source, the third annular light source and the first annular light source and the first The second annular light source has the same central axis, the third annular light source is disposed below the second annular light source, and the third annular light source has a larger radius than the second annular light source radius. The fill light structure of claim 1, wherein the distance relationship is a distance unit of a zero value. The fill light structure of claim 1, wherein the distance relationship is a distance unit of a negative value.