A side surface light source

Abstract

The utility model discloses a kind of side part face light sources, including bottom plate, light guide plate, diffusion plate, outer frame and light bar;Bottom plate is fixed at the bottom of outer frame, light bar is fixed in the clamping groove of outer frame inner side, the light guide plate is located above bottom plate and its side is opposite the light source on light bar;Diffusion plate cover is covered above light guide plate;The outer frame includes several side plates and several plugs, and is fixedly connected between adjacent side plates with plug.The utility model can flexibly adjust the size of outer frame to adapt to the detection needs of different specifications and sizes.

Description

Technical Field

[0001] This utility model relates to the technical field of light source devices for industrial testing, and more particularly to a side surface light source. Background Technology

[0002] In industrial inspection, products require various inspection functions, including dimensional measurement, contour inspection, and defect detection. For example, defect detection involves identifying numerous cosmetic defects, such as common scratches, impurities, cracks, and dents or bumps on lenses. These industrial inspections require specialized light sources, namely the industrial inspection light source device described in this application.

[0003] In existing technologies, the outer frame of the side surface light source is produced by CNC machining of aluminum alloy. The outer frame has a relatively fixed size and cannot be flexibly adjusted to meet the detection requirements of different specifications and sizes. Moreover, it requires secondary processing, which is costly. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a side surface light source to solve the technical problem that the outer frame dimensions are relatively fixed in the prior art.

[0005] This utility model is achieved using the following technical solution:

[0006] A side surface light source includes a base plate, a light guide plate, a diffuser plate, an outer frame, and a light strip; the base plate is fixed to the bottom of the outer frame, the light strip is vertically installed in a slot on the inner side of the outer frame, the light guide plate is located above the base plate and its side faces the light source on the light strip; the diffuser plate covers the light guide plate; the outer frame includes several side plates and several end caps, and adjacent side plates are fixedly connected by end caps.

[0007] Preferably, the outer frame includes four side panels, with adjacent side panels arranged at a 90° angle.

[0008] Preferably, it also includes a side strip with several second screw holes; the side plate has a notch groove with a notch at the bottom; the side strip is disposed in the notch groove; the base plate has holes corresponding to the second screw holes, and the base plate is fixed by screws and the side strip.

[0009] Preferably, the side plate has screw holes at the bottom and the base plate has holes corresponding to the screw holes, and the base plate is fixed to the side plate base plate with screws.

[0010] Preferably, the top of the side plate extends downward to form a limiting part, and the limiting part and the inner wall of the side plate form the slot; the light strip stands sideways in the slot, the upper end of the light strip is limited in the slot, and the lower end of the light strip is disposed on the bottom plate.

[0011] Preferably, the top of the side plate extends inward to form a baffle; the diffuser plate is constrained below the baffle.

[0012] Preferably, the light strip is a PCB board, on which LED beads are evenly distributed.

[0013] Preferably, it also includes reflective paper, which is adhered to the upper surface of the base plate.

[0014] Preferably, the side plate is a tension member.

[0015] Preferably, the edge strip and the end cap are die-cast parts.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This application changes the outer frame from the original one-piece CNC machining method to a structure composed of several side plates and end caps. The side plates can be cut from profiles, and the length can be cut arbitrarily according to needs. The side plates are matched with standard parts such as end caps, which can flexibly meet the assembly of light sources of different sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the side surface light source of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 This is an exploded view of the side surface light source of this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of section B;

[0021] Figure 5 and Figure 6 This is a schematic diagram of the plug structure.

[0022] In the picture:

[0023] 100. Side surface light source;

[0024] 200. Power cord is connected;

[0025] 1. Base plate;

[0026] 2 light guide plates;

[0027] 3 diffusion plates;

[0028] 4. Outer frame; 41. Side plate; 411. Notch; 412. Notch; 413. First screw hole; 414. Baffle; 415. Limiting part; 416. Slot; 42. Plug; 421. Third screw hole; 422. Fourth screw hole; 423. First square space; 424. First square space;

[0029] 5 LED strips;

[0030] 6. Edge strips;

[0031] 7. Reflective paper. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0035] In view of the aforementioned defects in existing light sources, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a technology that can overcome the defects in the existing technology and make the light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.

[0036] This application provides a side-mounted surface light source. By using LED beads mounted on the side, light is uniformly scattered through a light guide plate and diffuser plate, reducing frontal reflection interference and enhancing contrast. This highlights the features of the inspected product, creating a sharp contrast and facilitating image recognition and processing. Compared to bottom-mounted surface light sources, the side-mounted surface light source's smaller size makes it more suitable for installation in smaller facilities, applicable to product dimension measurement, contour inspection, defect detection, and other inspection tasks.

[0037] like Figure 1-4As shown, the side surface light source 100 in this embodiment is connected to a power cord 200, which supplies power to the side surface light source 100. The power cord 200 passes through a hole provided on the end cap and is electrically connected to the light strip inside the side plate. The side surface light source 100 includes a base plate 1, a light guide plate 2, a diffuser plate 3, an outer frame 4, a light strip 5, a side strip 6, and reflective paper 7.

[0038] refer to Figure 2 and Figure 3 as well as Figure 4 The base plate 1 is fixed to the bottom of the outer frame 4 with screws. The reflective paper 7 is attached to the upper surface of the base plate 1. The base plate 1 can be produced by stretching process, which is efficient and low cost. The light strip 5 is set in the slot 416 inside the outer frame 4. The light guide plate 2 is set above the reflective paper 7 and the side of the light guide plate 2 faces the light source on the light strip 5. The diffuser plate 3 is set above the light guide plate 2 and the upper surface of the diffuser plate 3 is restricted by the outer frame 4. The edge strip 6 is set in the outer frame 4. The light guide plate 2 is attached to the light strip 5 at its end edge. LED light sources are evenly arranged on the light strip 5. The thickness of the light guide plate 2 is greater than the width of the LED light source. The LED light source is positioned directly opposite the end edge of the light guide plate 2. Because the thickness of the light guide plate 2 is greater than the width of the LED light source, in actual operation, when the LED light source is irradiated, the light source 2 can collect and conduct all the light rays that are irradiated in a straight line. This can reduce the attenuation of the light source during transmission and improve the light energy utilization rate. Combined with the reflective paper 2 at the bottom, the light distribution is made more uniform. The diffuser plate 3 covers the light guide plate 2. The diffuser plate 3 makes the light diffuse outward evenly, further improving the uniformity of the light transmission process.

[0039] This embodiment features a clever structural design and high energy efficiency. By evenly distributing the light strips 5 around the light guide plate 2, the light forms a uniform illumination on the surface after passing through the diffused light guide plate 1. In addition, the reflective paper 7 designed below the light guide plate 1 can increase the luminous brightness by 30% to 60%, and the light is evenly diffused by the diffuser plate 3. When used for contour detection, it has high brightness and uniform light distribution, which is significantly better than other similar light sources on the market.

[0040] For details, please refer to Figures 3-6 The outer frame 4 consists of four side plates 41 and four end caps 42, with adjacent side plates 41 set at 90°. (Reference) Figure 4The side plate 41 is formed from aluminum material through a stretching process, and then cut to the required length by a cutting device. Stretching is a cold-working process where metal sheets are stretched into shape, typically used for deep drawing of thin aluminum alloys. It has the advantages of low cost and a smooth, aesthetically pleasing surface. The bottom of the side plate 41 has a notch 411, and the bottom of the notch 412 has a notch 412. Above the notch 411 is a first screw hole 413. The top plate of the side plate 41 extends inward to form a baffle 414, and the baffle 414 extends downward to form a limiting part 415. The limiting part 415 and the inner wall of the side plate 41 form a slot 416. The slot 416 is used to limit the light strip 5, which stands sideways within the slot 416. One light strip 5 is installed in the slot of each side plate. In this embodiment, the light strip 5 is a PCB board, with LED beads evenly distributed on the PCB board. The side of the PCB board with the LED beads faces the light guide plate 2. Baffle 414 is used to limit diffuser plate 3, which is confined below baffle 414. First screw hole 413 is used for assembly with plug 42; plug 42 is assembled and fixed to side plate 41 using screws. Notch 411 is used for assembling edge strip 6; one edge strip is installed in the notch of each side plate. Edge strip 6 has multiple second screw holes, and base plate 1 has multiple holes that match the second screw holes. Base plate 1 and edge strip 6 are installed with screws; the screw passes through the hole from below base plate 1, then through the notch 412 below notch 411, and is assembled into the second screw hole of edge strip 6. Edge strip 6 is produced using die casting. Die casting involves injecting molten metal into a mold under high pressure for rapid forming; it is a hot-working process suitable for metals such as copper, zinc, and aluminum. Die castings have high density and are suitable for drilling. In this embodiment, a notch is provided in the base plate, the edge strip is installed in the notch, and the base plate and the edge strip are locked and fixed with screws, thereby achieving the purpose of fixing the base plate and the side plate. In other embodiments, the notch is not required, and screw holes are opened at the bottom of the side plate, and the base plate is directly fixed to the bottom of the side plate with screws.

[0041] Please refer to Figure 5 and Figure 6 The plug 42 is generally square in shape. A first square space 423 is hollowed out at one corner of the upper surface of the plug 42. Each of the three perpendicular walls formed by this hollowed-out square space has a through screw hole. Two of the third screw holes 421, facing the side plates, are used to mate with the two adjacent side plates. Screws are inserted through the screw holes on the plug and then into the first screw holes 413 on the side plates, thus fixing the plug and the two side plates. There are four plugs; the other three plugs are installed in this manner, fixing the four side plates together to form a quadrilateral frame 4. The plug also has a downward-facing fourth screw hole 422. Through this downward-facing fourth screw hole 422, screws are used to assemble and fix the plug 42 to the base plate 1, enhancing the overall structural stability of the side surface light source. (Reference) Figure 6A second square space 424 is cut out diagonally from the first square space on the lower end face of the plug. The second square space 424 is used to accommodate the protruding parts of the light guide plate 2 and the diffuser plate 3 at the corner. In actual production, the plug 42 is preferably manufactured using a die-casting process. In this embodiment, the side plate, plug, and edge strip are all produced using uniformly set standard dimensions. When assembly is required, the side plate, edge strip, and light strip are cut according to the size of the light source, which can flexibly adapt to light sources of different sizes and can be quickly assembled without secondary processing, resulting in low cost.

[0042] Compared to other plugs, the plug connected to the power cord 200 has an additional hole through which the power cord can pass.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A side surface light source, characterized in that, It includes a base plate, a light guide plate, a diffuser plate, an outer frame, and a light strip; the base plate is fixed to the bottom of the outer frame, the light strip is set in a slot on the inner side of the outer frame, the light guide plate is set above the base plate and its side faces the light source on the light strip; the diffuser plate covers the light guide plate; the outer frame includes several side plates and several plugs, and adjacent side plates are fixedly connected by plugs.

2. The side surface light source as described in claim 1, characterized in that, The outer frame includes four side panels, with adjacent side panels set at a 90° angle.

3. The side surface light source as described in claim 1, characterized in that, It also includes a side strip with several second screw holes; the side plate has a notch groove with a notch at the bottom; the side strip is located in the notch groove; the base plate has holes corresponding to the second screw holes, and the base plate is fixed by screws and the side strip.

4. The side surface light source as described in claim 1, characterized in that, The side plate has screw holes at the bottom, and the base plate has holes corresponding to the screw holes. The base plate is fixed to the side plate base plate with screws.

5. The side surface light source as described in claim 1, characterized in that, The top of the side plate extends downward to form a limiting part, and the limiting part and the inner wall of the side plate form the slot; the light strip stands sideways in the slot, the upper end of the light strip is limited in the slot, and the lower end of the light strip is set on the bottom plate.

6. The side surface light source as described in claim 1, characterized in that, The top of the side plate extends inward to form a baffle; the diffuser plate is constrained below the baffle.

7. The side surface light source as described in claim 1, characterized in that, The light strip is a PCB board, on which LED beads are evenly distributed.

8. The side surface light source as described in claim 1, characterized in that, It also includes reflective paper, which is attached to the upper surface of the base plate.

9. The side surface light source as described in claim 1, characterized in that, The side plate is a tension member.

10. The side surface light source as described in claim 3, characterized in that, The edge strip and the plug are die-cast parts.

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