LED (light-emitting diode) large-view regional independently-controllable visual light source

Abstract

The utility model discloses an LED (light-emitting diode) large-view regional independently controllable visual light source, which comprises a light source shell, a plurality of light sources shaped like a Chinese character'hui 'are arranged on the inner top wall of the light source shell, and a plurality of side light sources are arranged on the side wall of the light source shell. PC diffuse reflection diffusion plates are installed between the side light sources and the inner wall of the light source shell and between the rectangular-ambulatory-plane light sources and the inner wall of the light source shell, the multiple side light sources and the multiple rectangular-ambulatory-plane light sources can be independently controlled, and the side light sources and the rectangular-ambulatory-plane light sources are matched to improve the uniformity of light rays. The light source shaped like the Chinese character'hui ', the top layer plane of which is divided into four areas and is independently controllable, and the eight strip-shaped side light sources with adjustable angles on the side surface of the bottom are arranged on the large-size aluminum substrate light source shell, so that the brightness of the machine vision detection areas can be independently adjusted, and the brightness of the light source is not influenced by the environmental stability; the long-term brightness stability is improved, the adjustment is convenient, the image definition is improved, and the uniformity is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED lighting light sources, and in particular relates to an LED light source with a large visual field and independently controllable visual areas. Background Art

[0002] In modern automated production, machine vision systems are widely used in fields such as process monitoring, finished product inspection, and quality control. Lighting systems are a crucial component of machine vision systems and are crucial for ensuring image quality and application effectiveness. Lighting effects are at the core of any lighting system, providing varying brightness and angles for specific applications, thereby improving the quality of the lighting source and achieving high-quality images.

[0003] Currently, most domestic manufacturers produce front-facing light sources, and all LED light-emitting components are controlled by one controller. Independent lighting cannot be controlled in different areas. When the workpiece to be inspected only requires light illumination in a certain area, this requirement cannot be met, and all LED light-emitting components must be involved in the work. This not only increases the power consumption of the entire light source, but also the brightness uniformity is limited by the field of view size, and the brightness cannot be adjusted independently in different areas. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide an LED visual light source with a large field of view and independently controllable areas. The light source is designed to achieve regional brightness adjustment of the brightness of the LED light source for machine vision detection lighting, obtain high-quality visual images, and improve the long-term stability of the light source brightness.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an LED with a large field of view and independently controllable visual light source in different areas. The light source includes a light source housing, and the inner top wall of the light source housing is equipped with multiple U-shaped light sources. The side wall of the light source housing is equipped with multiple side light sources. PC diffuse reflection diffusion plates are installed between the side light sources and the U-shaped light sources and the inner wall of the light source housing. The multiple side light sources and the multiple U-shaped light sources can be independently controlled, and the side light sources cooperate with the U-shaped light sources to improve the uniformity of light.

[0008] Preferably, the number of the U-shaped light sources is four, and the number of the side light sources is eight.

[0009] Furthermore, the side light source and the U-shaped light source both include a substrate and a plurality of high-power SMD LED lamp beads mounted on the substrate, and the LED lamp beads are combined with the substrate using SMT surface mounting technology.

[0010] Furthermore, the LED lamp beads are high-power lamp beads in 3535 package, and the luminous color of the LED lamp beads is white light with a power of 1W.

[0011] Furthermore, the light source housing is made of aluminum, which facilitates heat dissipation of the side light source and the U-shaped light source.

[0012] Furthermore, a plurality of heat conducting plates are fixedly connected to the circumference of the upper surface of the light source housing, a cover plate is fixedly connected to the upper surface of the heat conducting plates, a mounting hole is opened in the middle of the cover plate, and a cooling fan and a protective net are fixedly connected inside the mounting hole.

[0013] Furthermore, the side light source is mounted on a fixing plate, the bottom end of the fixing plate is rotatably connected to the inner wall of the light source housing through a rotating shaft, and the four outer corners of the light source housing are provided with arc grooves concentric with the rotating shaft, and a limiting screw is provided inside the arc groove, and the threaded end of the limiting screw passes through the arc groove and is fixedly connected to the fixing plate thread.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model adopts a top plane with four independently controllable U-shaped light sources, plus eight strip-shaped side light sources with adjustable angles on the bottom side, which are arranged on a large-sized aluminum substrate light source housing. Relying on multiple high-power 3535LED packages with white light and 1W power, the brightness of the image within the camera's field of view can be controlled in different areas to obtain high-quality image effects, thereby realizing independent brightness adjustment of the sub-areas of machine vision inspection. The brightness of the light source is not affected by environmental stability, and the long-term brightness stability is improved. It is not only convenient to adjust and improve image clarity, but also has better uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model when viewed from above.

[0018] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the adjustable side light source of the utility model.

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 5 It is a structural schematic diagram of installing a heat dissipation fan of the present invention.

[0022] The marks in the accompanying drawings are: 1. Light source housing; 2. U-shaped light source; 3. Side light source; 4. PC diffuse reflection diffusion plate; 5. Base plate; 6. LED lamp beads; 7. Heat conduction plate; 8. Cover plate; 9. Mounting hole; 10. Cooling fan; 11. Protective net; 12. Fixing plate; 13. Rotating shaft; 14. Arc groove; 15. Limit screw. DETAILED DESCRIPTION

[0023] This specific embodiment is a LED with a large visual field and can independently control the visual light source in different areas. Its structural diagram is as follows Figure 1-Figure 5 As shown, the light source includes a light source housing 1, a plurality of U-shaped light sources 2 are installed on the inner top wall of the light source housing 1, a plurality of side light sources 3 are installed on the side wall of the light source housing 1, and a PC diffuse reflection diffusion plate 4 is installed between the side light sources 3 and the U-shaped light sources 2 and the inner wall of the light source housing 1. The plurality of side light sources 3 and the plurality of U-shaped light sources 2 can be independently controlled, and the side light sources 3 cooperate with the U-shaped light sources 2 to improve the uniformity of the light.

[0024] like Figure 1 and Figure 2 As shown: In this embodiment, the number of the U-shaped light sources 2 is four, and the number of the side light sources 3 is eight. When the light source is manufactured, four external power lines are welded to connect with the U-shaped light source 2, so that the brightness of the image within the camera field of view can be controlled by different areas.

[0025] like Figure 2 As shown: In this embodiment, the side light source 3 and the U-shaped light source 2 both include a substrate 5 and a plurality of high-power SMD LED lamp beads 6 installed on the substrate 5. The LED lamp beads 6 are combined with the substrate 5 using SMT surface mounting technology. The LED lamp beads 6 are high-power lamp beads in 3535 packages. The luminous color of the LED lamp beads 6 is white light, and the power is 1W.

[0026] In this way, the luminous performance of the side light source 3 and the U-shaped light source 2 is stable, a high-quality image effect can be obtained, and the brightness of the light source is not affected by the environmental stability.

[0027] like Figure 2 and Figure 5 As shown: In this embodiment, the light source housing 1 is made of aluminum material, which is convenient for heat dissipation of the side light source 3 and the U-shaped light source 2; a plurality of heat conducting plates 7 are fixedly connected to the circumference of the upper surface of the light source housing 1, and a cover plate 8 is fixedly connected to the upper surface of the heat conducting plate 7. A mounting hole 9 is opened in the middle of the cover plate 8, and a cooling fan 10 and a protective net 11 are fixedly connected to the inside of the mounting hole 9.

[0028] Since the light source housing 1 is made of aluminum plate, not only the flame retardant performance is improved, but also the heat dissipation fan 10 can quickly dissipate the heat of the side light source 3 and the U-shaped light source 2, thereby extending the service life of the light source.

[0029] like Figure 3 and Figure 4 As shown: In this embodiment, the side light source 3 is installed on the fixing plate 12, the bottom end of the fixing plate 12 is rotatably connected to the inner wall of the light source housing 1 through the rotating shaft 13, and the four corners of the outer side of the light source housing 1 are provided with an arc groove 14 concentric with the rotating shaft 13, and a limiting screw 15 is provided inside the arc groove 14. The threaded end of the limiting screw 15 passes through the arc groove 14 and is fixedly connected to the fixing plate 12 with threads.

[0030] When adjusting the angle of the side light source 3, loosen the limit screw 15. At this time, the fixing plate 12 can drive the side light source 3 to rotate around the rotating shaft 13 until it is adjusted to a suitable angle. Then tighten the limit screw 15 to limit the fixing plate 12, which is not only convenient for adjustment, but also can improve the uniformity of light in combination with the U-shaped light source 2.

[0031] Working principle: When the light source is made, a PC diffuse reflection diffusion plate 4 is installed on the inner wall of the light source shell 1, four U-shaped light sources 2 are installed on the top layer, 4 external power cords are welded, and then assembled with the machined parts of the light source shell 1. Angle-adjustable strip side light sources 3 are installed on the sides of the light source shell 1, and an external power cord is welded, and assembled with the machined parts of the light source shell 1. The side light sources 3 and the U-shaped light sources 2 both include multiple high-power chip LED lamp beads 6, which are combined using SMT surface mounting technology. Finally, a cooling fan 10 is added to the upper surface of the light source shell 1. The assembled and tested light source is connected to a high-power multi-channel linear constant current light source control board, and then connected to the computer RS232 serial port to realize visual lighting work. Not only is the brightness of the top light source adjustable by area, but the angles and brightness of the sides around the top layer are also adjustable.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. An LED light source with a large viewing angle and independently controllable visual areas, the light source including a light source housing, characterized in that: The inner top wall of the light source housing is equipped with multiple U-shaped light sources, and the side wall of the light source housing is equipped with multiple side light sources. PC diffuse reflection diffusion plates are installed between the side light sources and the U-shaped light sources and the inner wall of the light source housing. The multiple side light sources and the multiple U-shaped light sources can be controlled independently, and the side light sources cooperate with the U-shaped light sources to improve the uniformity of light.

2. The LED wide-viewing area-based light source according to claim 1 can be independently controlled, characterized in that: The number of the U-shaped light sources is four, and the number of the side light sources is eight.

3. The LED wide-viewing area-based light source according to claim 2 can be independently controlled, characterized in that: The side light source and the U-shaped light source both include a substrate and a plurality of high-power SMD LED lamp beads mounted on the substrate. The LED lamp beads are combined with the substrate using SMT surface mounting technology.

4. The LED wide-viewing area-based light source according to claim 3 can be independently controlled, characterized in that: The LED lamp beads are high-power lamp beads in 3535 package. The luminous color of the LED lamp beads is white light and the power is 1W.

5. The LED wide-viewing area-based light source according to claim 4 can be independently controlled, characterized in that: The light source housing is made of aluminum material, which is convenient for heat dissipation of the side light source and the U-shaped light source.

6. The LED wide-viewing area-based light source according to claim 5 can be independently controlled, characterized in that: A plurality of heat conducting plates are fixedly connected to the circumference of the upper surface of the light source housing. A cover plate is fixedly connected to the upper surface of the heat conducting plates. A mounting hole is opened in the middle of the cover plate. A cooling fan and a protective net are fixedly connected inside the mounting hole.

7. The LED wide-viewing area-based light source according to claim 6 can be independently controlled, characterized in that: The side light source is mounted on a fixing plate, the bottom end of the fixing plate is rotatably connected to the inner wall of the light source housing via a rotating shaft, and arc grooves concentric with the rotating shaft are provided at the four outer corners of the light source housing, and a limiting screw is provided inside the arc groove, and the threaded end of the limiting screw passes through the arc groove and is fixedly connected to the fixing plate thread.

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