Automatic machine vision inspection backlight source
By introducing a diffusing plate and semi-lens sheet into the backlight, the problem that existing backlights cannot evenly illuminate the material close to the light source, improve detection accuracy and efficiency, and extend the service life of the equipment.
Patent Information
- Application Number
- CN202422325488.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing backlight for inspection of automated machine vision cannot effectively illuminate the side of the material close to the light source, resulting in inefficient detection and high cost.
A backlight structure is designed, including a diffusing plate and a semi-transmitter sheet. The light is uniformly diffused through the diffusing plate, and the semi-transmitter sheet forms a contrast between light and dark on the surface of the object, and combined with a heat dissipation fan to improve the light source utilization efficiency and positioning accuracy.
It realizes uniform distribution of light on the surface of the object, reduces spots and glare, improves detection accuracy and efficiency, and extends the service life of the equipment.
Smart Images
Figure CN223153398U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machine vision and its light source, and particularly relates to a backlight for inspection of automated machine vision. Background Technique
[0002] The vision detection backlight and its vision detection device illuminate the object to be detected in a backlight manner, making the details and features of the object more clearly visible. This technology is particularly suitable for occasions that require high-precision detection, such as quality control in industrial production, product defect detection, etc. By placing the object on a transparent stage and using the first vision system and the second vision system to perform backlight detection on the upper and lower sides of the object, the accuracy and efficiency of detection can be effectively improved.
[0003] The light of the existing backlight for inspection of automated machine vision cannot illuminate the side of the material close to the light source. If multi-sided imaging of the same product is performed simultaneously, corresponding supporting devices such as cameras, lenses, and light sources need to be added. This processing method has low efficiency, occupies a lot of resources, and is costly. For this reason, we propose a backlight for inspection of automated machine vision. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a backlight for inspection of automated machine vision to solve the problem that the light of the existing backlight for inspection of automated machine vision cannot illuminate the side of the material close to the light source as mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A backlight for inspection of automated machine vision, including a cover body, a connecting frame is provided at the top of the cover body, a camera body is provided on the surface of the connecting frame, a lens is provided at the bottom of the camera body, an installation groove is provided on the surface of the cover body, a highly transparent dust-proof mirror is provided inside the installation groove, a light-transmitting groove is provided at the bottom of the cover body, a semi-lens plate is provided inside the light-transmitting groove, a connecting groove is provided on one side of the light-transmitting groove, a diffuser plate is provided inside the connecting groove, an LED light board is provided on one side of the diffuser plate, a heat dissipation hole is provided on the outside of the cover body, a heat dissipation fan is provided inside the heat dissipation hole, and a dust-proof net is provided on one side of the heat dissipation hole.
[0006] Preferably, the camera body is fixedly inserted and installed on the surface of the connecting frame, and a lens is installed at the bottom of the camera body.
[0007] Preferably, an installation groove is formed through the top surface of the cover body, the lens is located directly above the installation groove, and a highly transparent dust-proof mirror is fixedly installed inside the installation groove.
[0008] Preferably, a half - lens sheet is installed diagonally inside the light - transmitting groove. A connecting groove is fixedly formed on one side surface inside the light - transmitting groove. A diffuser plate is fixedly installed at one end of the connecting groove close to the half - lens sheet.
[0009] Preferably, an LED lamp board is fixedly installed at the other side of the connecting groove close to the diffuser plate. The heat - dissipation hole is communicated with the inside of the connecting groove.
[0010] Preferably, a heat - dissipation fan is fixedly installed inside the heat - dissipation hole, and a dust - proof net is fixedly installed outside the heat - dissipation hole.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] The diffuser plate arranged will diffuse the light emitted by the LED lamp board, so as to form a uniform light distribution on the illumination surface of the half - lens sheet, effectively reducing light spots and glare, and improving the utilization efficiency of the light source. The half - lens sheet arranged can refract the light source generated by the LED lamp board onto the surface of the object to be measured below, causing light and dark contrast in the light - transmitting groove, improving the positioning accuracy, and reducing the light and dark changes in the visual field. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a front - view structural schematic diagram of the present utility model;
[0014] Figure 2 It is a side - view structural schematic diagram of the present utility model;
[0015] Figure 3 It is an internal - structure schematic diagram of the connecting groove of the present utility model.
[0016] In the figure: 1, cover body; 2, connecting frame; 3, camera body; 4, lens; 5, installation groove; 6, high - light - transmission dust - proof mirror; 7, light - transmitting groove; 8, half - lens sheet; 9, connecting groove; 10, diffuser plate; 11, LED lamp board; 13, heat - dissipation hole; 14, heat - dissipation fan; 15, dust - proof net. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0018] Please refer to Figures 1-3, the present utility model provides a technical solution: a backlight for inspection of an automated machine vision, including a cover body 1, a connecting frame 2 is provided at the top of the cover body 1, a camera body 3 is provided on the surface of the connecting frame 2, a lens 4 is provided at the bottom of the camera body 3, an installation groove 5 is provided on the surface of the cover body 1, a highly transparent dust-proof mirror 6 is provided inside the installation groove 5, a light-transmitting groove 7 is provided at the bottom of the cover body 1, a half-lens sheet 8 is provided inside the light-transmitting groove 7, a connecting groove 9 is provided on one side of the light-transmitting groove 7, a diffuser plate 10 is provided inside the connecting groove 9, an LED light board 11 is provided on one side of the diffuser plate 10, a heat dissipation hole 13 is provided on the outside of the cover body 1, a heat dissipation fan 14 is provided inside the heat dissipation hole 13, and a dust-proof net 15 is provided on one side of the heat dissipation hole 13.
[0019] Specifically, the camera body 3 is fixedly penetrated and installed on the surface of the connecting frame 2, the lens 4 is installed at the bottom of the camera body 3, an installation groove 5 is penetrated and opened on the top surface of the cover body 1, the lens 4 is arranged directly above the installation groove 5, a highly transparent dust-proof mirror 6 is fixedly installed inside the installation groove 5, a half-lens sheet 8 is diagonally installed inside the light-transmitting groove 7, a connecting groove 9 is fixedly opened on the inner surface of one side of the light-transmitting groove 7, a diffuser plate 10 is fixedly installed at one end of the connecting groove 9 close to the half-lens sheet 8, an LED light board 11 is fixedly installed on the other side of the connecting groove 9 close to the diffuser plate 10, the heat dissipation hole 13 is communicated with the inside of the connecting groove 9, a heat dissipation fan 14 is fixedly installed inside the heat dissipation hole 13, and a dust-proof net 15 is fixedly installed on the outside of the heat dissipation hole 13.
[0020] In this embodiment, when in specific use, the object to be measured is placed directly below the light-transmitting groove 7, the LED light board 11 is turned on, and the diffuser plate 10 provided will diffuse the light emitted by the LED light board 11 light source, so that a uniform light distribution is formed on the illumination surface of the half-lens sheet 8, which can effectively reduce light spots and glare, improve the utilization efficiency of the light source, and make the illumination effect softer and more comfortable. The half-lens sheet 8 provided can refract the light source generated by the LED light board 11 onto the surface of the object to be measured below, so as to generate a light and dark contrast in the light-transmitting groove 7, improve the positioning accuracy, and reduce the light and dark change of the light in the field of view. The heat dissipation fan 14 provided can discharge the heat generated by the LED light board 11 to the outside, thereby realizing the heat dissipation effect of the LED light board 11 and prolonging the service life of the device.
[0021] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A backlight for inspection of automated machine vision, comprising a cover body, characterized in that: A connecting frame is provided at the top of the cover body, a camera body is provided on the surface of the connecting frame, a lens is provided at the bottom of the camera body, an installation groove is provided on the surface of the cover body, a highly transparent dust-proof mirror is provided inside the installation groove, a light-transmitting groove is provided at the bottom of the cover body, a half-lens sheet is provided inside the light-transmitting groove, a connecting groove is provided on one side of the light-transmitting groove, a diffuser plate is provided inside the connecting groove, an LED light board is provided on one side of the diffuser plate, a heat dissipation hole is provided on the outer side of the cover body, a heat dissipation fan is provided inside the heat dissipation hole, and a dust-proof net is provided on one side of the heat dissipation hole.
2. The backlight for inspection of an automated machine vision according to claim 1, characterized in that: The camera body is fixedly inserted and installed on the surface of the connecting frame, and a lens is installed at the bottom of the camera body.
3. The backlight for inspection of an automated machine vision according to claim 1, characterized in that: An installation groove is formed through the top surface of the cover body, the lens is arranged directly above the installation groove, and a highly transparent dust-proof mirror is fixedly installed inside the installation groove.
4. An inspection backlight for automated machine vision according to claim 1, characterized in that: A half-lens sheet is diagonally installed inside the light-transmitting groove, a connecting groove is fixedly formed on the inner surface of one side of the interior of the light-transmitting groove, and a diffuser plate is fixedly installed at one end of the connecting groove close to the half-lens sheet.
5. The backlight for inspection of an automated machine vision according to claim 1, characterized in that: An LED light board is fixedly installed on the other side of the connecting groove close to the diffuser plate, and the heat dissipation hole communicates with the inside of the connecting groove.
6. The backlight for inspection of an automated machine vision according to claim 1, characterized in that: A heat dissipation fan is fixedly installed inside the heat dissipation hole, and a dust-proof net is fixedly installed on the outer side of the heat dissipation hole.