Adjustable coaxial light source and optical lens

Abstract

The utility model discloses an adjustable coaxial light source and an optical lens, the adjustable coaxial light source comprises a fixing assembly, and one end of the fixing assembly sleeves an extension port of the lens, so that the axis direction of the adjustable coaxial light source is perpendicular to the axis direction of the lens; the lens group is fixedly arranged in the fixing assembly; the rotating assembly is arranged outside the fixing assembly in a sleeving manner and is movably connected with the fixing assembly through a guide piece; and one end of the lamplight assembly is connected with the rotating assembly through a fixing piece, and a light outlet of the lamplight assembly is arranged close to the rotating assembly. According to the adjustable coaxial light source, the rotating assembly and the fixing assembly are movably connected through the guiding piece, the rotating assembly rotates in the circumferential direction of the fixing assembly, the guiding piece is driven to move in the axial direction of the fixing assembly relative to the rotating assembly, the distance between the lamplight assembly and the lens set is adjusted, and therefore the light emitting angle of the adjustable coaxial light source is adjusted; the purpose that the same adjustable coaxial light source outputs emergent light with different light emitting angles is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine vision detection, in particular to an adjustable coaxial light source and an optical lens. BACKGROUND

[0002] In machine vision detection, the lens and the light source are important components. Since the coaxial light source has the advantages of uniform light emission and almost perpendicular light emission to the surface of the sample to be detected, the lens with the coaxial light source is generally used in the existing machine vision detection. In a specific detection scene, different light angles are needed for different detection samples to achieve different effects. However, the coaxial light source matched with the existing lens with the coaxial light source is generally fixed and cannot be adjusted, so the angle cannot be changed. Therefore, the same lens with the coaxial light source cannot be used to detect different samples to be detected, and the conventional lens with the coaxial light source has the problem of low applicability. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide an adjustable coaxial light source and an optical lens to solve the above technical problems in the prior art and improve the applicability of the optical lens assembled with the adjustable coaxial light source.

[0004] The first aspect of the present application provides an adjustable coaxial light source, which comprises:

[0005] A fixing assembly, one end of the fixing assembly is sleeved in the extension port of the lens, so that the axial direction of the adjustable coaxial light source and the axial direction of the lens are perpendicular to each other;

[0006] A lens group, the lens group is fixedly arranged in the fixing assembly;

[0007] A rotating assembly, the rotating assembly is sleeved outside the fixing assembly and is movably connected with the fixing assembly through a guide piece;

[0008] A light assembly, one end of the light assembly is connected with the rotating assembly through a fixing piece, and the light outlet of the light assembly is arranged close to the rotating assembly, wherein the rotating assembly rotates along the circumferential direction of the fixing assembly, drives the guide piece to move along the axial direction of the fixing assembly relative to the rotating assembly, adjusts the distance between the light assembly and the lens group, and adjusts the light emission angle of the adjustable coaxial light source.

[0009] Further, the fixing assembly comprises:

[0010] A sleeve, the first end of the sleeve is sleeved in the extension port of the lens, and the outer diameter of the second end of the sleeve gradually increases towards the side close to the fixing assembly;

[0011] A positioning cylinder, one end of the positioning cylinder is sleeved in the second end of the sleeve, and the lens group is fixedly arranged in the positioning cylinder, wherein the diameter of the lens group is consistent with the inner diameter of the positioning cylinder.

[0012] Further, the outer side wall of the sleeve is formed with a first step, a second step and a third step arranged in sequence, the outer diameter of the first step is greater than the outer diameter of the second step, the outer diameter of the second step is greater than the outer diameter of the third step near the second step, and equal to the outer diameter of the third step near the fixing assembly.

[0013] Further, the side wall of the positioning cylinder is provided with a first positioning hole, and the guide member is arranged in the first positioning hole to movably connect the positioning cylinder and the rotating assembly.

[0014] Further, the rotating assembly comprises:

[0015] a first rotating member, the first rotating member is sleeved on the positioning cylinder, and the side wall of the first rotating member is provided with a limiting groove extending along the axial direction of the first rotating member;

[0016] a second rotating member, the second rotating member is sleeved on the first rotating member and covers the limiting groove, and the inner side wall of the second rotating member is provided with a spiral groove;

[0017] the first end of the guide member is arranged in the limiting groove and the first positioning hole in sequence, and the second end of the guide member is arranged in the spiral groove.

[0018] Further, the end of the first rotating member near the light assembly is formed with a step structure, and the side of the step structure near the light assembly is provided with a second positioning hole, wherein the inner diameter of the step structure is smaller than the diameter of the light assembly.

[0019] Further, the spiral groove is in communication with both ends of the second rotating member in the axial direction.

[0020] Further, the light assembly comprises:

[0021] a lamp plate, the lamp plate comprises a bottom plate and lamp beads arranged on the bottom plate, the outer side wall of the bottom plate is formed with an arc-shaped structure recessed inward, the fixing member abuts against the arc-shaped structure and is arranged in the second positioning hole;

[0022] a lamp holder, the first end of the lamp holder is sleeved on the step structure, and the lamp plate is arranged in the lamp groove arranged at the first end of the lamp holder, and the second end of the lamp holder is formed with a heat dissipation structure.

[0023] Further, the lamp holder is provided with a first through hole and a second through hole arranged in the axial direction of the lamp holder, and the first through hole and the second through hole are arranged on both sides of the lamp groove.

[0024] The second aspect of the present application provides an optical lens, which comprises a lens body and an adjustable coaxial light source as described above, the lens body comprises a lens barrel group arranged in the axial direction of the lens body, and an extension port extending in the radial direction of the lens body, and the adjustable coaxial light source is sleeved on the extension port.

[0025] Different from the prior art, the adjustable coaxial light source of the application comprises a fixing assembly, a rotating assembly, a light assembly and a mirror set, the mirror set is fixedly arranged in the interior of the fixing assembly, the fixing assembly is fixedly arranged with the extension port of the lens, and is movably connected with the rotating assembly through a guide piece, the light assembly is fixedly connected with the rotating assembly through a fixing piece, and the light assembly is adjusted in distance with the mirror set by rotating the rotating assembly along the axial direction of the fixing assembly, driving the guide piece to move along the axial direction of the fixing assembly relative to the rotating assembly, so as to adjust the light emitting angle of the adjustable coaxial light source, realize the output of the emergent light with different light emitting angles from the same adjustable coaxial light source, and further enable the lens equipped with the adjustable coaxial light source to complete the detection of different samples to be detected, thereby improving the applicability and compatibility of the lens.

[0026] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than limiting the application. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a structural schematic diagram of an embodiment of the adjustable coaxial light source of the application;

[0029] Figure 2 is Figure 1 is a sectional structural schematic diagram of the adjustable coaxial light source in along A-A direction in

[0030] Figure 3 is Figure 1 is an exploded structural schematic diagram of the adjustable coaxial light source in

[0031] Figure 4 is Figure 3 is a structural schematic diagram of the sleeve in

[0032] Figure 5 is Figure 3 is a structural schematic diagram of the positioning cylinder in

[0033] Figure 6 is Figure 3 is a structural schematic diagram of the second rotating piece in

[0034] Figure 7 is Figure 6 is a sectional structural schematic diagram of the second rotating piece in along B-B direction in

[0035] Figure 8 isFigure 3 Structure diagram of the first rotating member in the first rotating member and the second rotating member;

[0036] Figure 9 Figure 3 Structure diagram of the lamp plate in the lamp plate and the lamp seat;

[0037] Figure 10 Figure 3 Structure diagram of the lamp seat in the lamp plate and the lamp seat;

[0038] Figure 11 Figure 11 Structure diagram of the lamp seat along the C-C direction in the lamp plate and the lamp seat;

[0039] Figure 12 Effect diagram of different light-emitting angles of the adjustable coaxial light source of the present application;

[0040] Figure 13 Structure diagram of an embodiment of the optical lens of the present application;

[0041] Reference signs:

[0042] 1-adjustable coaxial light source, 10-fixed assembly, 111-sleeve, 1111-third step, 1112-second step, 1113-first step, 112-positioning cylinder, 1121-first positioning hole, 1122-second positioning column, 113-first annular positioning member, 114-first positioning column, 115-second annular positioning ring, 20-rotating assembly, 21-second rotating member, 211-spiral groove, 212-third positioning hole, 22-first rotating member, 221-limiting groove, 222-annular groove, 223-second positioning hole, 23-guide member, 30-lens group, 40-light assembly, 41-lamp plate, 411-lamp bead, 412-bottom plate, 413-arc-shaped structure, 42-lamp seat, 421-heat dissipation structure, 422-lamp groove, 423-third through hole, 424-first through hole, 425-second through hole, 43-fixing member, 50-optical lens, 51-lens barrel group, 52-adjustable coaxial light source. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solutions of the present application, the adjustable coaxial light source and the optical lens provided by the present application are further described in detail below in combination with the drawings and specific embodiments. It can be understood that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0044] ​​​The terms "first", "second", and the like in the specification are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. Moreover, the terms "comprises", "comprising", "includes", "including", "has", "having" and the like are intended to be open-ended terms that specifically permit the inclusion of one or more steps or elements within the scope of the process, method, system, product or device as claimed. For example, the process, method, system, product or device that comprises a list of steps or elements is not limited to only those steps or elements that are explicitly listed, but can also include other steps or elements that are not expressly listed or included.

[0045] Since the existing lens with a coaxial light source is matched with a coaxial light source with a fixed angle, that is, the light-emitting angle of the coaxial light source cannot be adjusted, the same lens with a coaxial light source cannot be used to complete the detection of different samples to be detected, and the applicability is low. The present application provides an adjustable coaxial light source which can be sleeved on the extension port of the lens through a fixing assembly, and the light-emitting angle of the light emitted from the adjustable coaxial light source into the lens can be adjusted by rotating the rotating assembly along the circumference of the fixing assembly, driving the guide to move along the axis of the fixing assembly, adjusting the distance between the light assembly and the lens group arranged in the fixing assembly.

[0046] Please refer to Figures 1-11 , Figure 1 is a structural schematic diagram of an embodiment of the adjustable coaxial light source of the present application; Figure 2 is Figure 1 is a sectional structural schematic diagram of the adjustable coaxial light source in Figure 3 is Figure 1 is an exploded structural schematic diagram of the adjustable coaxial light source in Figure 4 is Figure 3 is a structural schematic diagram of the sleeve in Figure 5 is Figure 3 is a structural schematic diagram of the positioning cylinder in Figure 6 is Figure 3 is a structural schematic diagram of the second rotating part in Figure 7 is Figure 6 is a sectional structural schematic diagram of the second rotating part in Figure 8 is Figure 3 is a structural schematic diagram of the first rotating part in Figure 9 is Figure 3 is a structural schematic diagram of the lamp plate in Figure 10 is Figure 3 is a structural schematic diagram of the lamp holder in Figure 11 is Figure 11 is a sectional structural schematic diagram of the lamp holder in

[0047] As Figures 1-3As shown, the adjustable coaxial light source 1 of the embodiment comprises a fixed assembly 10, a rotating assembly 20, a mirror assembly 30 and a light assembly 40, wherein the mirror assembly 30 is fixedly arranged in the fixed assembly 10, one end of the fixed assembly 10 is sleeved on the extended port of the lens, so that the axial direction of the adjustable coaxial light source 1 is perpendicular to the axial direction of the lens. Specifically, one end of the fixed assembly 10 is formed with an opening, and the opening is sleeved on the extended port of the lens.

[0048] In this embodiment, the mirror assembly 30 can be composed of multiple plano-convex mirrors, convex-concave mirrors and plano-concave mirrors, which can be arranged according to actual needs.

[0049] The rotating assembly 20 is sleeved on the fixed assembly 10 and movably connected with the fixed assembly 10 through the guide piece 23.

[0050] One end of the light assembly 40 is connected with the rotating assembly 20 through the fixing piece 43, and the light outlet of the light assembly 40 is arranged close to the rotating assembly 20. The rotating assembly 20 rotates along the circumference of the fixed assembly 10, driving the guide piece 23 to move along the axis of the fixed assembly 10 relative to the rotating assembly 20, thereby adjusting the distance between the light assembly 40 and the mirror assembly 30, and adjusting the light emitting angle of the adjustable coaxial light source 1.

[0051] As shown in Figure 2 and Figure 3 The fixed assembly 10 of the embodiment comprises a sleeve 111 and a positioning cylinder 112. The first end of the sleeve 111 is sleeved on the extended port of the lens, the outer diameter of the second end of the sleeve 111 gradually increases towards the side close to the fixed assembly 10, one end of the positioning cylinder 112 is sleeved on the second end of the sleeve 111, and the mirror assembly 30 is fixedly arranged in the positioning cylinder 112, wherein the diameter of the mirror assembly 30 is consistent with the inner diameter of the positioning cylinder 112.

[0052] As shown in Figure 4 The outer side wall of the sleeve 111 of the embodiment is formed with a first step 1113, a second step 1112 and a third step 1111 arranged in sequence, the outer diameter of the first step 1113 is greater than the outer diameter of the second step 1112, the outer diameter of the second step 1112 is greater than the outer diameter of the side of the third step 1111 close to the second step 1112, and equal to the outer diameter of the side of the third step 1111 close to the fixed assembly 10.

[0053] As shown in Figure 5 The side wall of the positioning cylinder 112 of the embodiment is provided with a first positioning hole 1121, and the guide piece 23 is arranged in the first positioning hole 1121 to movably connect the positioning cylinder 112 and the rotating assembly 20.

[0054] Further, the fixing assembly 10 of the embodiment further comprises a second annular positioning ring 115, which is arranged on the inner side of the positioning cylinder 112 and adjacent to the outermost lens of the lens group 30.

[0055] As shown in Figure 2 , the inner wall of the positioning cylinder 112 is provided with a second positioning column 1122 extending towards the axis, which abuts against the outer wall of the second annular positioning ring 115 to fix the second annular positioning ring 115 in the positioning cylinder 112.

[0056] As shown in Figure 2 and Figure 3 , the rotating assembly 20 of the embodiment comprises a first rotating member 22, a second rotating member 21 and a guide member 23, wherein the first rotating member 22 is sleeved on the positioning cylinder 112, and the second rotating member 21 is sleeved on the first rotating member 22.

[0057] As shown in Figure 8 , the side wall of the first rotating member 22 of the embodiment is provided with a limiting groove 221 extending along the axial direction of the first rotating member 22.

[0058] The end of the first rotating member 22 close to the light assembly 40 is formed with a stepped structure, and the side of the stepped structure close to the light assembly 40 is provided with a second positioning hole 223, wherein the inner diameter of the stepped structure is smaller than the diameter of the light assembly 40.

[0059] The end of the first rotating member 22 away from the light assembly 40 is provided with an annular groove 222, wherein the annular groove 222 can be provided with a through hole. As shown in Figure 3 , the fixing assembly 10 of the embodiment further comprises a first annular positioning member 113 and a first positioning column 114, the first annular positioning member 113 is sleeved on the annular groove 222, and the first positioning column 114 can be arranged through the through hole of the annular groove 222 and abut against the third step 1111 of the sleeve 111. At the same time, since the third step 1111 has a structure that the outer diameter gradually increases, when the first positioning column 114 abuts against the third step 1111, the sleeve 111 is subjected to force in two directions perpendicular to each other, which further increases the fixing effect between the sleeve 111 and the positioning cylinder 112.

[0060] As shown in Figures 6-7 , the second rotating member 21 of the embodiment is sleeved on the first rotating member 22 and covers the limiting groove 221, and the inner wall of the second rotating member 21 is provided with a spiral groove 211, wherein the spiral groove 211 is connected to both ends of the second rotating member 21 in the axial direction, and the included angle between the extension direction of the spiral groove 211 and the radial direction of the second rotating member 21 ranges from 0° to 90°.

[0061] The side wall of the second rotating member 21 is further provided with a third positioning hole 212, and a screw is arranged in the third positioning hole 212 to realize the relative fixation of the second rotating member 21 and the first rotating member 22.

[0062] Specifically, the first end of the guide member 23 is sequentially arranged in the limiting groove 221 and the first positioning hole 1121, and the second end of the guide member 23 is arranged in the spiral groove 211.

[0063] As shown in Figure 2 and Figure 3 , the light assembly 40 of the embodiment includes a lamp plate 41 and a lamp holder 42. The lamp plate 41 is arranged on the lamp holder 42, and the lamp plate 41 is fixedly connected with the rotating assembly 20,

[0064] As shown in Figure 9 , the lamp plate 41 of the embodiment includes a bottom plate 412 and lamp beads 411 arranged on the bottom plate 412. The outer side wall of the bottom plate 412 forms an arc-shaped structure 413 recessed inward. A fixing member 43 abuts against the arc-shaped structure 413 and is arranged in the second positioning hole 223. Alternatively, the fixing member 43 of the embodiment can be a screw, and the second positioning hole 223 can be a threaded hole. Alternatively, in other embodiments, the fixing member 43 and the second positioning hole 223 can also be a blind column and a blind hole, or can be a fixed fitting structure.

[0065] As shown in Figures 10-11 , the first end of the lamp holder 42 is sleeved on the stepped structure, and the lamp plate 41 is installed in the lamp groove 422 arranged at the first end of the lamp holder 42. The second end of the lamp holder 42 forms a heat dissipation structure 421. Alternatively, the heat dissipation structure 421 of the embodiment can be composed of a plurality of spaced apart grid plates.

[0066] The lamp holder 42 is provided with a first through hole 424 and a second through hole 425 arranged through the axial direction of the lamp holder 42. The first through hole 424 and the second through hole 425 are arranged on both sides of the lamp groove 422. The two pins of the lamp beads 411 are arranged in the lamp groove 422 in a linear manner. The connecting line connects the lamp groove 422 through the first through hole 424 and the second through hole 425, and is connected with the positive pin and the negative pin, respectively.

[0067] Alternatively, the lamp holder 42 of the embodiment is further provided with a third through hole 423 arranged through the axial direction of the lamp holder 42. The third through hole 423 is arranged in the lamp groove 422, and is used for arranging the pin bent end portion of the lamp beads 411, and further enhances the heat dissipation effect of the lamp beads 411.

[0068] In combination with Figures 1-11 , further referring to Figure 12 , Figure 12 is an effect diagram of different light emitting angles of the adjustable coaxial light source of the present application. As shown in Figure 12As shown, when the light assembly 40 is closest to the mirror group 30, the light rays emitted through the mirror group 30 are parallel light; when the light assembly 40 is neither far nor close to the mirror group 30, the light rays emitted through the mirror group 30 converge towards the axis of the adjustable coaxial light source 1, but do not cross; when the light assembly 40 is farthest from the mirror group 30, the light rays emitted through the mirror group 30 converge towards the axis of the adjustable coaxial light source 1 and cross.

[0069] The second aspect of the present application provides an optical lens 50 comprising a lens body 51 and an adjustable coaxial light source 52, wherein the adjustable coaxial light source 52 can be the adjustable coaxial light source 1 described in any of the above embodiments, which will not be repeated here.

[0070] The lens body 51 comprises a lens barrel group arranged along the axial direction of the lens body 51, and an extension port extending along the radial direction of the lens body 51, and the adjustable coaxial light source 52 is sleeved on the extension port.

[0071] The adjustable coaxial light source 52 of the present embodiment is rotated along the circumferential direction of the fixed assembly 10 by rotating the rotating assembly 20, which drives the guide 23 to move along the axial direction of the fixed assembly 10 relative to the rotating assembly 20, adjusts the distance between the light assembly 40 and the mirror group 30, adjusts the light-emitting angle of the adjustable coaxial light source 52, realizes the output of emitted light with different light-emitting angles, and further enables the optical lens 50 equipped with the adjustable coaxial light source 52 to complete the detection of different samples to be detected, thereby improving the applicability and compatibility of the optical lens 50.

[0072] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An adjustable coaxial light source, characterized in that: include: a fixing assembly, one end of which is sleeved on the extension port of the lens so that the axis direction of the adjustable coaxial light source and the axis direction of the lens are perpendicular to each other; A lens assembly, wherein the lens assembly is fixedly disposed in the fixing assembly; A rotating assembly, the rotating assembly being sleeved outside the fixed assembly and movably connected to the fixed assembly via a guide member; A lighting assembly, one end of which is connected to the rotating assembly via a fixing member, and a light outlet of the lighting assembly is arranged close to the rotating assembly, wherein the rotating assembly rotates along the circumferential direction of the fixing assembly, driving the guide member to move axially relative to the rotating assembly along the axial direction of the fixing assembly, thereby adjusting the distance between the lighting assembly and the lens group to adjust the light output angle of the adjustable coaxial light source.

2. The adjustable coaxial light source according to claim 1, characterized in that: The fixing assembly includes: a sleeve, wherein a first end of the sleeve is sleeved on the extension port of the lens, and an outer diameter of a second end of the sleeve gradually increases toward a side close to the fixing assembly; A positioning tube, one end of which is sleeved on the second end of the sleeve, and the lens group is fixedly arranged in the positioning tube, wherein the diameter of the lens group is consistent with the inner diameter of the positioning tube.

3. The adjustable coaxial light source according to claim 2, characterized in that: The outer wall of the sleeve is formed with a first step, a second step and a third step arranged in sequence, the outer diameter of the first step is larger than the outer diameter of the second step, the outer diameter of the second step is larger than the outer diameter of the third step close to the second step, and is equal to the outer diameter of the third step close to the fixing component.

4. The adjustable coaxial light source according to claim 2, characterized in that: A first positioning hole is provided on the side wall of the positioning cylinder, and the guide member is passed through the first positioning hole to flexibly connect the positioning cylinder and the rotating assembly.

5. The adjustable coaxial light source according to claim 4, characterized in that: The rotating assembly comprises: a first rotating member, the first rotating member being sleeved on the positioning cylinder, and a limiting groove extending along the axial direction of the first rotating member being provided on a side wall of the first rotating member; a second rotating member, the second rotating member being sleeved on the first rotating member and covering the limiting groove, wherein the inner side wall of the second rotating member is provided with a spiral groove; The first end of the guide member passes through the limiting groove and the first positioning hole in sequence, and the second end of the guide member is arranged in the spiral groove.

6. The adjustable coaxial light source according to claim 5, characterized in that: A step structure is formed on one end of the first rotating member close to the lighting assembly, and a second positioning hole is provided on one side of the step structure close to the lighting assembly, wherein the inner diameter of the step structure is smaller than the diameter of the lighting assembly.

7. The adjustable coaxial light source according to claim 5, characterized in that: The spiral groove communicates with both ends of the second rotating member along the axial direction.

8. The adjustable coaxial light source according to claim 6, characterized in that: The lighting assembly includes: a light board, the light board comprising a base plate and lamp beads arranged on the base plate, the outer side wall of the base plate forming an inwardly concave arc structure, the fixing member abutting against the arc structure and passing through the second positioning hole; A lamp holder, wherein the first end of the lamp holder is sleeved on the step structure, and the lamp board is installed in the lamp groove of the lamp holder arranged at the first end, and the second end of the lamp holder is formed with a heat dissipation structure.

9. The adjustable coaxial light source according to claim 8, characterized in that: The lamp holder is provided with a first through hole and a second through hole which are provided along the axial direction of the lamp holder. The first through hole and the second through hole are provided on both sides of the lamp groove.

10. An optical lens, characterized in that: The optical lens includes a lens body and an adjustable coaxial light source as described in any one of claims 1 to 9, the lens body includes a lens barrel group arranged along the axial direction of the lens body, and an extension port extending radially along the lens body, and the adjustable coaxial light source is mounted on the extension port.

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