Low-cost stripe coaxial light source
By adopting a design that alternates and independently controls multiple LED light groups, the high cost of traditional 2.5D stripe inspection light sources is solved, achieving a low-cost and flexible stripe combination effect suitable for product appearance inspection.
Patent Information
- Application Number
- CN202520113946.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Traditional 2.5D stripe detection light sources have high production costs due to specific material components and require complex control modules, making it difficult to achieve various stripe combinations.
Multiple LED light groups are arranged alternately, combined with independent control to create flexible stripe combinations. The plug-in connection and mounting slot design reduces costs and improves installation efficiency.
A low-cost coaxial stripe light source was achieved, which can flexibly switch between horizontal and vertical stripe effects, reducing overall production costs and improving the flexibility and stability of detection.
Smart Images
Figure CN223690955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of detecting light source especially relates to a low -cost stripe coaxial light source. BACKGROUND
[0002] The stripe light 2.5D visual can eliminate the influence of background interference and surface reflection, not only captures the plane information, but also reflects the surface depth and many advantages are widely applied to product appearance detection.
[0003] Because various material accessories are specific use, so lead to production cost is higher, if want to realize multiple stripe combination still need a complex control module. SUMMARY
[0004] The utility model discloses to overcome the above -mentioned defects in prior art, provide a low -cost stripe coaxial light source, will adopt multiple LED lamp groups and alternately set up, simultaneously adopt independent control and open, can form corresponding stripe combination according to the need and open corresponding LED lamp group, and the use is flexible and convenient, can effectively reduce overall cost.
[0005] To achieve the above object, the utility model provides a low -cost stripe coaxial light source, include:
[0006] The light source shell is provided with an observation window on one side, and the other side is provided with a light outlet symmetrically arranged with the observation window.
[0007] The light splitter is arranged between the observation window and the light outlet at an angle of 45 degrees.
[0008] The coaxial light source assembly is arranged opposite to the light splitter, and the coaxial light source assembly includes a light source circuit board and a plurality of LED lamp groups.
[0009] Further, the light source shell includes two side plates, a top plate, a cover plate and a bottom plate, the two side plates are respectively connected to the two sides of the cover plate along the splicing locking to form a frame with one side opening, the opening is the light outlet, the cover plate is inserted into the upper end of the frame, the bottom plate is fixedly connected to the lower end of the frame, and the observation window is arranged on the cover plate.
[0010] Further, the top inner side of the two side plates forms a first mounting groove, the inner side of the cover plate protrudes to form a hanging part, and the edge of the cover plate is sequentially hung on the first mounting groove and the hanging part. Thus, the detachable installation of the cover plate can be realized, the cost is reduced, and the efficiency is improved.
[0011] Further, the inner side of the hanging part forms a second mounting groove between the observation window, and an anti-reflection lens is arranged on the second mounting groove. The anti-reflection lens reduces the intensity of reflected light by interference principle, thereby improving the light transmittance and ensuring the stability during detection.
[0012] Further, the two side plates are provided with a third mounting groove inclined at 45°, and the beam splitter is inserted into the third mounting groove. The beam splitter is arranged at 45° between the observation window and the light outlet after being inserted, so that the coaxial light source assembly can be effectively distributed in the light path and the overall detection effect is provided.
[0013] Further, the top plate is provided with a fourth mounting groove for assisting the installation of the beam splitter, and the lower side of the cover plate is provided with a fifth mounting groove for penetrating the bottom edge of the beam splitter. The module installation of various components is realized, which is beneficial to maintenance and cost control.
[0014] Further, the lower side of the two side plates is provided with a sixth mounting groove, the lower side of the cover plate is provided with a seventh mounting groove matched with the sixth mounting groove, and the bottom plate is inserted into the sixth mounting groove and the seventh mounting groove. The insertion of the mounting groove can realize the rapid insertion of the bottom plate, thereby realizing the installation and maintenance of the light source circuit board.
[0015] Further, the light source circuit board is fixed to the bottom plate, and the light source circuit board is provided with a matrix arranged LED insertion interface, and the LED lamp is a plug-in LED lamp bead. The plug-in LED lamp bead effectively saves the cost, effectively reduces the maintenance cost, and the lamp bead adopts a 30-degree small-angle plug-in lamp bead to solve the problem of large-angle diffusion of the pasted lamp.
[0016] Further, the coaxial light source assembly includes four groups of independently working LED lamp groups, and in the matrix array, two rows are taken as a unit, the first row in each unit is alternately arranged with LED lamp beads of two groups of LED lamp groups, and the second row is alternately arranged with LED lamp beads of the remaining two groups of LED lamp groups. Through the alternate arrangement of the lamp beads of the four groups of LED lamp groups, the LED matrix array is formed, so that the horizontal and vertical stripe effects are realized by controlling the opening and closing of different LED lamp groups; meanwhile, all channels can be lighted, and the coaxial light source without stripe can be used.
[0017] Further, the four groups of LED lamp groups are respectively connected with independent external plugs. Independent power supply is adopted to facilitate independent control of each group of LED lamp groups, and stripe control is realized.
[0018] Compared with the prior art, the light source shell of the utility model adopts the plug-in type connection of multiple installation grooves, can effectively improve the installation efficiency and save the cost, for realizing the horizontal and vertical stripe effect of the light source, the utility model adopts the matrix array which is composed of four groups of LED lamp groups which are alternately plugged in, and each group of LED lamp groups is independently controlled, so that the horizontal and vertical stripe effect can be realized by controlling the on-off of different LED lamp groups, and of course all the channels can be lighted, and the coaxial light source without stripe can be used. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating laboriously.
[0020] Figure 1 It is a structure schematic diagram of the low-cost stripe coaxial light source of the utility model;
[0021] Figure 2 It is Figure 1 The exploded schematic diagram of
[0022] Figure 3 It is Figure 1 The cross-sectional schematic diagram along the A-A line of
[0023] Figure 4 It is the assembly schematic diagram of the light source circuit board and the LED lamp group of the utility model.
[0024] In the drawings, there are:
[0025] 1, light source shell; 11, observation window; 12, light outlet; 13, side plate; 131, first installation groove; 132, sixth installation groove; 133, third installation groove; 14, top plate; 141, fourth installation groove; 15, cover plate; 151, hanging part; 152, seventh installation groove; 153, second installation groove; 154, fifth installation groove; 16, bottom plate; 2, light splitter; 3, coaxial light source assembly; 31, light source circuit board; 32, LED lamp group; 321, first LED lamp group; 322, second LED lamp group; 323, third LED lamp group; 324, fourth LED lamp group; 33, LED plug-in interface; 34, external plug; 4, anti-reflection lens. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are merely some embodiments of the utility model, rather than all the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are merely used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as described in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0028] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are merely for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features.
[0029] Please refer to Figures 1 to 4 The embodiment of the utility model provides a low-cost stripe coaxial light source which comprises a light source shell 1, a beam splitter 2 and a coaxial light source assembly 3.
[0030] As shown in the drawings, Figure 1 An observation window 11 is formed on one side of the light source shell 1, and the other side of the light source shell 1 is provided with a light outlet 12 symmetrically arranged with the observation window 11. Specifically, the light source shell 1 comprises two side plates 13, a top plate 14, a cover plate 15 and a bottom plate 16. The two side plates 13 and the two sides of the cover plate 15 are connected by splicing and locking to form a frame with one side opening, which is the light outlet 12. The cover plate 15 is inserted into the upper end of the frame, and the bottom plate 16 is fixed to the lower end of the frame. The observation window 11 is arranged on the cover plate 15. In order to make the installation of the cover plate 15 more convenient, in the embodiment, a first mounting groove 131 is formed on the top inner side of the two side plates 13, and a hanging part 151 is formed on the inner side of the cover plate 15. The edge of the cover plate 15 is sequentially hung on the first mounting groove 131 and the hanging part 151, and finally can be fixed by screws to increase the firmness of the installation. Similarly, in order to facilitate the installation of the bottom plate 16, a sixth mounting groove 132 is formed on the lower side of the two side plates 13, and a seventh mounting groove 152 is formed on the lower side of the cover plate 15. The bottom plate 16 is inserted into the sixth mounting groove 132 and the seventh mounting groove 152 during assembly, and can also be fixed by screws to make the connection between the frame and the bottom plate 16 more stable.
[0031] The present embodiment is also provided with an anti-reflection lens 4, which is arranged on the observation window 11. Specifically, a second mounting groove 153 is formed between the inner side of the hanging part 151 and the observation window 11, and the anti-reflection lens 4 is arranged on the second mounting groove 153. The anti-reflection lens 4 reduces the intensity of the reflected light by the interference principle, thereby improving the light transmittance and ensuring the stability during detection.
[0032] The spectroscope 2 of the present embodiment is arranged at an angle of 45° between the observation window 11 and the light outlet 12. Specifically, a third mounting groove 133 is arranged on the two side plates 13 at an angle of 45°, and the spectroscope 2 is inserted into the third mounting groove 133. After the insertion of the spectroscope 2, the spectroscope 2 is arranged at an angle of 45° between the observation window 11 and the light outlet 12, thereby providing an overall detection effect for the effective light path distribution of the coaxial light source assembly 3. As an optimization, a fourth mounting groove 141 for assisting the installation of the spectroscope 2 is formed on the top plate 14, and a fifth mounting groove 154 for penetrating the bottom edge of the spectroscope 2 is formed on the lower side of the cover plate 15. When the spectroscope 2 is inserted into the third mounting groove 133, the two ends of the spectroscope 2 are inserted into the fourth mounting groove 141 and the fifth mounting groove 154, respectively, thereby further increasing the stability of the spectroscope 2 after installation.
[0033] The coaxial light source assembly 3 is arranged opposite to the spectroscope 2. The coaxial light source assembly 3 includes a light source circuit board 31 and a plurality of LED lamp groups 32. The light source circuit board 31 is fixedly connected to the bottom plate 16, and a matrix arrangement of LED insertion interfaces 33 is arranged on the light source circuit board 31. In the present embodiment, there are four groups of LED lamp groups 32 that can be independently powered and controlled. Thus, the independent operation of the LED lamp groups 32 can be realized. Each group of LED lamp groups 32 includes a plurality of LED lamps, and the LED lamps are 30-degree small-angle plug-in beads. Of course, the number of LED lamp groups 32 can be adjusted as needed to meet different requirements.
[0034] The plurality of LED lamp groups 32 are uniformly inserted into the LED insertion interfaces 33 of the light source circuit board 31 to form a matrix array. In the matrix array, at least two groups of LED lamp groups 32 are arranged in each row, and the LED lamps of the two groups of LED lamp groups 32 are alternately arranged. Specifically, in the matrix array, Figure 4 a virtual frame is taken as an example, two rows are taken as a unit, the LED beads of the two groups of LED lamp groups 32 are alternately arranged in the first row of each unit, and the LED beads of the remaining two groups of LED lamp groups 32 are alternately arranged in the second row. Through the alternate arrangement of the beads of the four groups of LED lamp groups 32, a matrix array of LED is formed. Thus, the horizontal and vertical stripe effects can be realized by controlling the opening and closing of different LED lamp groups 32. At the same time, all the channels can be turned on, and the coaxial light source without stripes can be used.
[0035] The four groups of LED lamp groups 32 of the embodiment are respectively connected with independent external plugs 34, and the external plugs 34 are connected with the controller to realize power-on of each group of LED lamp groups 32, so that independent control of each group of LED lamp groups 32 is realized, and controllable stripe control is realized.
[0036] The working principle of the utility model is briefly described as follows: the utility model is directly connected with a detection system during use, and the external plugs 34 of the four groups of LED lamp groups 32 are connected with the controller to realize power-on, in the matrix array formed by the LED lamp groups 32, the four groups of LED lamp groups 32 are respectively a first LED lamp group 321, a second LED lamp group 322, a third LED lamp group 323 and a fourth LED lamp group 324.
[0037] When the system needs horizontal stripe light effect, two implementation modes can be used, the first control mode is that the first LED lamp group 321 and the second LED lamp group 322 are lighted, and the third LED lamp group 323 and the fourth LED lamp group 324 are extinguished, and the second control mode is that the first LED lamp group 321 and the second LED lamp group 322 are extinguished, and the third LED lamp group 323 and the fourth LED lamp group 324 are lighted, so that the horizontal stripe light effect is obtained.
[0038] When vertical stripe light effect is needed, two implementation modes can be used, the first control mode is that the first LED lamp group 321 and the third LED lamp group 323 are lighted, and the second LED lamp group 322 and the fourth LED lamp group 324 are extinguished, and the second control mode is that the first LED lamp group 321 and the third LED lamp group 323 are extinguished, and the second LED lamp group 322 and the fourth LED lamp group 324 are lighted.
[0039] Of course, if normal coaxial light source light effect is needed, the four groups of LED lamp groups 32 can be lighted at the same time.
[0040] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A low cost striped coaxial light source, characterized by, include: The light source housing (1) has an observation window (11) on one side and a light outlet (12) symmetrically arranged with the observation window (11) on the other side. Beam splitter (2), which is inclined at 45° between the observation window (11) and the light outlet (12); A coaxial light source assembly (3) is arranged opposite to the beam splitter (2). The coaxial light source assembly (3) includes a light source circuit board (31) and several LED light groups (32). Each LED light group (32) is an independently operating light group. Each LED light group (32) includes several LEDs. The several LED light groups (32) are evenly arranged on the light source circuit board (31) to form a matrix array. Each row of the matrix array has at least two LED light groups (32), and the LEDs of the two LED light groups (32) are arranged alternately.
2. A low cost striped coaxial light source as defined in claim 1, characterized in that The light source housing (1) includes two side plates (13), a top plate (14), a cover plate (15), and a bottom plate (16). The two side plates (13) are spliced and locked with the two sides of the cover plate (15) to form a frame with an opening on one side. The opening is a light outlet (12). The cover plate (15) is inserted into the upper end of the frame. The bottom plate (16) is fixed to the lower end of the frame. The observation window (11) is set on the cover plate (15).
3. A low cost striped coaxial light source as defined in claim 2, characterized in that The top inner side of the two side plates (13) forms a first mounting groove (131), and the inner side of the cover plate (15) protrudes inward to form a hook part (151). The edge of the cover plate (15) is hooked onto the first mounting groove (131) and the hook part (151) in sequence.
4. A low cost striped coaxial light source as defined in claim 3, characterized in that A second mounting groove (153) is formed between the inner edge of the mounting part (151) and the observation window (11), and an intensifying lens (4) is mounted on the second mounting groove (153).
5. A low cost striped coaxial light source as defined in claim 4, characterized in that The two side plates (13) are provided with a third mounting groove (133) at a 45° angle, and the beam splitter (2) is inserted into the third mounting groove (133).
6. A low cost striped coaxial light source as defined in claim 5, characterized in that A fourth mounting groove (141) for assisting in the installation of the beam splitter (2) is provided on the top plate (14), and a fifth mounting groove (154) for the bottom edge of the beam splitter (2) is provided on the lower side of the cover plate (15).
7. A low cost striped coaxial light source as defined in claim 2, wherein, The lower side of the two side plates (13) is provided with a sixth mounting groove (132), and the lower side of the cover plate (15) is provided with a seventh mounting groove (152) that cooperates with the sixth mounting groove (132). The bottom plate (16) is inserted into the sixth mounting groove (132) and the seventh mounting groove (152).
8. A low cost striped coaxial light source as defined in claim 2, wherein, The light source circuit board (31) is fixed to the base plate (16). A matrix of LED plug-in interfaces (33) are provided on the light source circuit board (31). The LED lamp is a plug-in LED lamp bead with a small angle of 30°.
9. A low cost striped coaxial light source as defined in claim 1, wherein, The coaxial light source assembly (3) comprises four groups of LED lamp groups (32) working independently, in the matrix array, two rows as a unit, the first row in each unit is the LED lamp beads of two groups of LED lamp groups (32) arranged alternately, and the second row is the LED lamp beads of the remaining two groups of LED lamp groups (32) arranged alternately.
10. A low cost striped coaxial light source as defined in claim 9, characterized in that The four groups of LED lamp groups (32) are respectively connected with independent external plugs (34).