CN210572012U

CN210572012U - Coaxial light source device for industrial detection

Info

Publication number: CN210572012U
Application number: CN201921536561.8U
Authority: CN
Inventors: 江才权; 黄时平
Original assignee: Dongguan Kemai Vision Technology Co Ltd
Current assignee: Dongguan Kemai Vision Technology Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-19
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a coaxial light source device for industrial detection, include: casing, light source, spectroscope, two sides of casing are equipped with mutual parallel arrangement's observation window and irradiation window respectively, the spectroscope with observation window and irradiation window are 45 degrees angles slope set up in between observation window and the irradiation window, the light that the light source sent be with observation window and irradiation window parallel direction ground shine on the spectroscope. The utility model relates to an even illumination, formation of image are clear, avoid reflecting light, improve machine vision's accuracy and reproducibility's coaxial light source device for industrial detection.

Description

Coaxial light source device for industrial detection

Technical Field

The utility model relates to a coaxial light source technical field especially relates to an industrial detection uses coaxial light source device of accuracy and reproducibility of even illumination, formation of image are clear, avoid reflecting light, improvement machine vision.

Background

In industrial applications, coaxial light is mainly used for illumination of microscopes or vision systems, and the use of coaxial light can provide more uniform illumination and clear imaging while avoiding reflections of objects, thereby improving the accuracy and reproducibility of machine vision. The common light sources known in the market can not detect plane objects with very high reflection degree and can not overcome the interference caused by surface reflection.

Therefore, there is a need for a coaxial light source device for industrial inspection, which has uniform illumination, clear image, avoids reflection, and improves the accuracy and reproducibility of machine vision.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an even illumination, formation of image are clear, avoid reflecting light, improve machine vision's accuracy and reproducibility's coaxial light source device for industrial detection.

In order to realize the purpose, the utility model provides a technical scheme does: provided is a coaxial light source device for industrial detection, comprising: casing, light source, spectroscope, two sides of casing are equipped with mutual parallel arrangement's observation window and irradiation window respectively, the spectroscope with observation window and irradiation window are 45 degrees angles slope set up in between observation window and the irradiation window, the light that the light source sent be with observation window and irradiation window parallel direction ground shine on the spectroscope.

The spectroscope is composed of two triangular prisms, and the bonding surfaces of the two triangular prisms are light splitting surfaces.

The casing is the rectangle casing, observation window and irradiation window arrange respectively in the last side and the downside of casing, the light source set up in the inside left side of casing, just the light that the light source sent shines to the right side.

The LED light source is attached to the inner wall of the left side face of the shell, and light emitted by the light source is irradiated to the spectroscope and then is homogenized through the light homogenizing plate.

The LED light source is a monochromatic LED light source or a multicolor LED light source.

The LED light source can be formed by arranging a plurality of LED light source arrays.

The utility model aims at the deficiency of the prior art, the utility model provides a coaxial light source device for industrial detection, it can make LED light come 45 minutes spectroscopes, half light directly passes the spectroscope and shines the light-emitting window, this part light can not get into the camera, no influence to formation of image, another half light shines on the object below through the irradiation window through the spectroscope reflection, the light that reflects from the object comes 45 minutes spectroscopes, half light shines the camera above to again, this part light is used for the formation of image, another half light is reflected on the LED lamp through the spectroscope, this part light does not have the influence to the formation of image, thereby reduce light loss, improve the definition of formation of image, evenly shine the object surface, thereby detect the very harmful plane object of reflection of light degree, for example, metal, harsh glass, the film, the fish tail detection of surfaces such as wafer, the damage detection of chip and silicon wafer, and positioning the marking point, and identifying the packaging bar code.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

Fig. 1 is a schematic view of an embodiment of the coaxial light source device for industrial inspection according to the present invention.

Fig. 2 is a schematic view of an observation window of the coaxial light source device for industrial inspection shown in fig. 1.

Fig. 3 is a schematic view of an illumination window of the coaxial light source device for industrial inspection shown in fig. 1.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout. As described above, as shown in fig. 1 to 3, the coaxial light source device 100 for industrial inspection according to the embodiment of the present invention includes a rectangular housing 1, a light source is disposed on the inner wall of the left side surface of the housing 1, and a preferred embodiment of the light source is an LED light source 2, a light homogenizing plate 3 is arranged on the right side of the LED light source 2 and in parallel with the LED light source 2, a spectroscope 4 is arranged on the right side of the light homogenizing plate 3, the spectroscope 4 consists of two triangular prisms, a gluing surface 5 of the spectroscope 4 is a light splitting surface, an observation window 10 and an irradiation window 11 are respectively arranged on the upper side surface and the lower side surface of the shell 1, the observation window 10 and the irradiation window 11 are arranged in parallel, the spectroscope 4, the observation window 10 and the irradiation window 11 are obliquely arranged between the observation window 10 and the irradiation window 11 at an angle of 45 degrees, and light emitted by the LED light source 2 irradiates the spectroscope 4 in a direction parallel to the observation window 10 and the irradiation window 11.

In one embodiment, the LED light source 2 may be formed by a plurality of LED arrays. The LED light source 2 may be an elongated light source or a plate-shaped light source.

In one embodiment, the LED light source 2 may be a single color LED or a multi-color LED.

In one embodiment, the beam splitter 4 may be composed of a lens having a reflection function and a transmission function, and the lens is disposed on the bonding surface 5 of the beam splitter 4, i.e. the plane where the beam splitting surface is located.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A coaxial light source device for industrial detection is characterized by comprising: casing, light source, spectroscope, two sides of casing are equipped with mutual parallel arrangement's observation window and irradiation window respectively, the spectroscope with observation window and irradiation window are 45 degrees angles slope set up in between observation window and the irradiation window, the light that the light source sent be with observation window and irradiation window parallel direction ground shine on the spectroscope.

2. The coaxial light source device for industrial inspection according to claim 1, wherein the spectroscope is composed of two triangular prisms, and the bonded surface of the two triangular prisms is a spectroscopic surface.

3. The coaxial light source device for industrial inspection according to claim 1, wherein the housing is a rectangular housing, the observation window and the irradiation window are respectively disposed on an upper side and a lower side of the housing, the light source is disposed on a left side of an inside of the housing, and light emitted from the light source is irradiated to a right side.

4. The coaxial light source device for industrial detection as claimed in claim 3, further comprising a light homogenizing plate, wherein the light source is an LED light source and is attached to the inner wall of the left side surface of the housing, and the light emitted by the light source is homogenized by the light homogenizing plate before being irradiated to the spectroscope.

5. The coaxial light source device for industrial inspection according to claim 4, wherein the LED light source is a single color LED light source or a multi-color LED light source.

6. The coaxial light source device for industrial inspection according to claim 4, wherein the LED light source is arranged by a plurality of LED light source arrays.