Lens structure and lighting fixture

Abstract

The present invention provides a lens structure and a lighting fixture, belonging to the technical field of lighting equipment, wherein the lens structure comprises a sleeve, a lens, a sealing body and an inner ring; an annular protrusion is provided on the inner peripheral wall of the sleeve; the lens is arranged in the sleeve, the edge of the emitting surface of the lens abuts against one side of the annular protrusion, and a gap is provided between the circumferential side wall of the lens and the inner peripheral wall of the sleeve; the sealing body is filled in the gap; the inner ring is arranged in the sleeve and abuts against the edge of the incident surface of the lens. The present invention also provides a lighting fixture using the lens structure. The lens structure and lighting fixture provided by the present invention have a waterproof sealing function, and the internal lens thereof also has a high assembly precision with the sleeve; the lighting fixture adopts the above-mentioned lens structure, so that the light emission effects of the lighting fixtures of the same batch have no obvious difference or are consistent.

Description

Technical Field

[0001] The present invention belongs to the technical field of lighting equipment, and more particularly, relates to a lens structure and a lighting fixture. Background Art

[0002] A laser light is a lamp that emits laser light. Its lamp head is typically equipped with a convex lens to focus the light. In actual use, the lamp head is typically waterproofed and sealed. In existing technology, this is typically achieved by inserting a sealing ring between the lens and the lamp head housing.

[0003] Since the sealing ring itself is made of flexible material, when using the sealing ring for waterproofing, it is easy for assembly errors to occur between the lens and the lamp head housing on which the lens is installed. As a result, the relative position accuracy between the lens and the light source cannot be guaranteed after the lamp head and the laser light body are assembled. This leads to large differences in the light output effects of laser lights from the same batch after assembly.

[0004] Application Contents

[0005] The purpose of the embodiments of the present invention is to provide a lens structure and a lighting fixture to solve the technical problem of assembly error between the lens and the lamp holder housing in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a lens structure and a lighting fixture, comprising:

[0007] A sleeve, wherein an annular protrusion is circumferentially provided on the inner peripheral wall of the sleeve;

[0008] a lens disposed in the sleeve, wherein the edge of the emission surface of the lens abuts against one side of the annular protrusion, and a gap is provided between the circumferential side wall of the lens and the inner circumferential wall of the sleeve;

[0009] a sealing body, filling the gap; and

[0010] The inner ring is arranged in the sleeve and abuts against the edge of the incident surface of the lens.

[0011] Optionally, a groove is provided on the side of the annular protrusion that contacts the lens, and the edge portion of the lens is embedded in the groove.

[0012] Optionally, the exit surface includes a first curved surface and a first edge surface surrounding the first curved surface, and the first edge surface abuts against the bottom surface of the groove;

[0013] The incident surface includes a second curved surface and a second edge surface surrounding the second curved surface, and the second edge surface abuts against a portion of the end surface of the inner ring.

[0014] Optionally, the circumferential side wall portion abuts against the groove wall of the groove, and the remaining portion of the circumferential side wall forms the gap with the inner circumferential wall of the sleeve.

[0015] Optionally, the sealing body is a sealing ring or a sealant.

[0016] Optionally, the inner ring is threadedly connected to the sleeve.

[0017] Optionally, an anti-slip portion is provided on the inner circumferential wall of the inner ring.

[0018] The lens structure and lighting fixture provided by the embodiments of the present invention have the following beneficial effects: Compared with the prior art, the lens structure provided by the embodiments of the present invention provides an annular protrusion within the sleeve, and the lens is pressed against the annular protrusion via the inner ring, so that the lens and the annular protrusion and the lens and the inner ring are rigidly abutted, thereby ensuring high assembly precision between the lens and the sleeve. At the same time, a gap is provided between the circumferential side wall of the lens and the inner circumferential wall of the sleeve, and the gap is filled with a sealing body to achieve waterproof sealing. In this way, the lens structure not only has a waterproof sealing function, but also has high assembly precision between the internal lens and the sleeve.

[0019] Another technical solution adopted by the present invention is to provide a lighting fixture, comprising:

[0020] a main body having a light emitting portion; and

[0021] As for the lens structure mentioned above, the lens structure is assembled on one end of the main body where the light emitting portion is provided.

[0022] Optionally, the inner peripheral wall of one end of the sleeve for assembling the main body has a first step portion for abutting against the main body.

[0023] Optionally, the outer peripheral wall of one end of the main body for assembling the sleeve has a second step portion and a third step portion distributed up and down in a stepped shape along the axial direction;

[0024] The end surface of one end of the sleeve used for assembling the main body abuts against the end surface of the second stepped portion;

[0025] The outer peripheral wall of the third step portion is threadedly connected to the inner peripheral wall of the lens structure.

[0026] The beneficial effect of the lighting fixture provided by the embodiment of the present invention is that: compared with the prior art, the lighting fixture provided by the embodiment of the present invention adopts the above-mentioned lens structure, and the lens structure is installed on the light-emitting part of the main body, so that the lighting fixture as a whole has a higher assembly accuracy, and the lighting effects of the lighting fixtures of the same batch after assembly have no obvious differences or are consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of an exploded structure of a lens structure provided by an embodiment of the present invention;

[0029] Figure 2 A schematic cross-sectional view of a sleeve used in an embodiment of the present invention;

[0030] Figure 3 A schematic side view of the structure of a lens used in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the three-dimensional structure of the inner ring used in an embodiment of the present invention;

[0032] Figure 5 A schematic cross-sectional view of a lens structure provided by an embodiment of the present invention;

[0033] Figure 6 This is a schematic cross-sectional view of a lighting fixture provided by an embodiment of the present invention.

[0034] Among them, the reference numerals in the figures are:

[0035] 1. Lens structure; 110. Sleeve; 111. Annular protrusion; 112. Groove; 113. First step; 120. Lens; 121. Exit surface; 1211. First curved surface; 1212. First edge surface; 122. Incident surface; 1221. Second curved surface; 1222. Second edge surface; 130. Sealing member; 140. Inner ring; 141. Anti-slip portion;

[0036] 2. Main body; 210. Housing; 211. Second step portion; 212. Third step portion; 220. Power supply assembly; 230. Light-emitting element;

[0037] 100. Lighting fixtures. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] As described in the background, conventional waterproof sealing is typically achieved by inserting a sealing ring between the lens and the lamp housing. Because the sealing ring itself is made of a flexible material, it can easily lead to assembly errors between the lens and the lamp housing to which it is mounted. This can cause uncertainty in the relative positioning of the lens and light source after the lamp is assembled with the laser lamp body, leading to significant variations in light output between laser lamps assembled from the same batch.

[0043] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a lens structure, see Figure 1 and Figure 5 The lens structure 1 includes a sleeve 110, a lens 120, a sealing body 130, and an inner ring 140. An annular protrusion 111 is circumferentially provided on the inner circumferential wall of the sleeve 110. The lens 120 is disposed within the sleeve 110, with the edge of the exit surface 121 of the lens 120 abutting against one side of the annular protrusion 111. A gap is provided between the circumferential sidewall of the lens 120 and the inner circumferential wall of the sleeve 110. The sealing body 130 fills the gap. The inner ring 140 is disposed within the sleeve 110 and abuts against the edge of the incident surface 122 of the lens 120.

[0044] Compared to the prior art, the lens structure 1 provided in the embodiment of the present invention has an annular protrusion 111 disposed within the sleeve 110. The lens 120 is pressed against the annular protrusion 111 via an inner ring 140, resulting in rigid contact between the lens 120 and the annular protrusion 111, and between the lens 120 and the inner ring 140, respectively. This ensures a high degree of assembly precision between the lens 120 and the sleeve 110. Furthermore, a gap is provided between the circumferential sidewall of the lens 120 and the inner circumferential wall of the sleeve 110, which is filled with a sealing member 130 for waterproofing. This ensures that the lens structure 1 not only has a waterproof and sealing function, but also achieves a high degree of assembly precision between the internal lens 120 and the sleeve 110.

[0045] In one embodiment, see Figure 1 、 Figure 2 and Figure 5 A groove 112 is formed on the side of the annular protrusion 111 that contacts the lens 120 , and the edge of the lens 120 is embedded in the groove 112 .

[0046] By providing a groove 112 on the annular protrusion 111 for assembling the lens 120, the lens 120 can be quickly positioned during assembly. The annular protrusion 111 is centered on the axis of the sleeve 110, and the groove 112 on the annular protrusion 111 is also centered on the axis of the sleeve 110. When installing the lens 120, it is only necessary to abut the edge of the exit surface 121 of the lens 120 against the bottom surface of the preset groove 112, and a portion of the circumferential side wall against the wall surface of the groove 112. The lens 120 can then be centered within the sleeve 110. If the lens 120 is directly abutted against the annular protrusion 111, it is necessary to adjust the circumferential spacing between the lens 120 and the inner circumferential wall of the sleeve 110 to ensure coaxiality between the lens 120 and the sleeve 110. In this way, the groove 112 quickly positions the lens 120 during assembly, simplifying the centering process of the lens 120.

[0047] In a specific embodiment, see Figure 3 and Figure 5 The exit surface 121 includes a first curved surface 1211 and a first edge surface 1212 surrounding the first curved surface 1211, and the first edge surface 1212 abuts against the bottom surface of the groove 112; the incident surface 122 includes a second curved surface 1221 and a second edge surface 1222 surrounding the second curved surface 1221, and the second edge surface 1222 abuts against part of the end surface of the inner ring 140.

[0048] Thus, when lens 120 is embedded in groove 112, surface contact between lens 120 and sleeve 110 is achieved through the abutment between first edge surface 1212 and the bottom surface of groove 112, rather than line contact between first curved surface 1211 and the edge of groove 112. Consequently, when water accumulates on exit surface 121 of lens 120 and flows toward sleeve 110 along first curved surface 1211, surface contact between lens 120 and sleeve 110 provides a better sealing effect than line contact between lens 120 and sleeve 110. Inner ring 140 abuts against lens 120 and secures lens 120 within groove 112, limiting axial displacement of lens 120 within sleeve 110 and ensuring assembly accuracy of lens 120. The lens 120 abuts against the end of the inner ring 140 through the second edge surface 1222 surrounding the second curved surface 1221, thereby achieving surface contact between the lens 120 and the inner ring 140, rather than line contact between the second curved surface 1221 and the edge of the end surface of the inner ring 140, so that the inner ring 140 can fix the lens 120 more firmly in the groove 112 and is not prone to scratches or damage to the lens 120.

[0049] In an optional embodiment, the lens 120 is a circular lens 120 , an elliptical lens 120 , or a polygonal lens 120 , and the cross section of the groove 112 is adapted to the maximum cross section of the lens 120 .

[0050] Specifically, the maximum cross-section of the lens 120 is the cross-section passing through the circumferential sidewall of the lens 120. Here, the cross-section of the groove 112 is adapted to the maximum cross-section of the lens 120, meaning that the two have the same shape and size. Thus, the lens 120 used in this embodiment, whether circular, elliptical, or polygonal, can be embedded in the groove 112. The shape of the lens 120 is selected based on actual needs and is not a single limitation herein.

[0051] In some embodiments, a portion of the circumferential sidewall abuts against the groove wall of the groove 112 , and a remaining portion of the circumferential sidewall forms a gap with the inner circumferential wall of the sleeve 110 .

[0052] By the above arrangement, the circumferential side wall of the lens 120 abuts against the groove wall embedded in the groove 112 to limit the circumferential movement of the lens 120, so as to ensure that the lens 120 has a higher assembly accuracy; and the remaining part of the circumferential side wall forms a gap with the inner wall of the sleeve 110 to provide assembly space for the assembly of the sealing body 130.

[0053] In one embodiment, the sealing body 130 is a sealing ring or a sealant.

[0054] Preferably, the sealing body 130 is a sealant. It should be noted that the thermoplastic sealant is in liquid form when stored. After being applied to the corresponding position, the sealant will dry quickly and can achieve a bonding effect, such as 575H glue, etc. When using sealant as the sealing body 130, the side of the annular protrusion 111 in the sleeve 110 with the groove 112 is facing upward and the sleeve 110 is placed on a plane, and then the lens 120 is placed in the groove 112, and then the liquid sealant is filled between the circumferential side wall of the lens 120 and the inner circumferential wall of the sleeve 110. After the sealant dries, the lens 120 and the sleeve 110 can be adhered by the adhesiveness of the sealant, and a waterproof line can be formed between the lens 120 and the sleeve 110 by the adhesiveness of the sealant, so that moisture or dust cannot penetrate into the interior of the sleeve 110 through the gap between the lens 120 and the sleeve 110.

[0055] In one embodiment, see Figure 5 , the inner ring 140 is threadedly connected to the sleeve 110 .

[0056] Specifically, the inner circumferential wall of the sleeve 110, on the side of the annular protrusion 111 where the lens 120 is mounted, is provided with internal threads, and the outer wall of the inner ring 140 is provided with external threads that match the internal threads of the sleeve 110. Thus, the inner ring 140 is screwed into the sleeve 110 until it abuts against the lens 120 and then tightened. The self-locking threaded connection secures the lens 120 to the annular protrusion 111, ensuring high assembly precision for the lens 120.

[0057] Of course, in other embodiments, the inner ring 140 can also be fixedly connected to the sleeve 110. After the inner ring 140 abuts against the lens 120 embedded in the groove 112, the inner ring 140 is fixedly connected to the sleeve 110, which can also achieve the purpose of the inner ring 140 fixing the lens 120 in the groove 112, so that the lens 120 has a higher assembly accuracy.

[0058] In one embodiment, see Figure 4 An anti-slip portion 141 is provided on the inner circumferential wall of the inner ring 140 .

[0059] Specifically, one or more slots are defined along the axial direction of the inner wall of inner ring 140 for engaging mounting equipment. Mounting equipment engaged in the slots drives inner ring 140 to rotate, enabling automated assembly of inner ring 140 and sleeve 110. Once the mounting equipment is engaged, the slots prevent inner ring 140 from sliding relative to the mounting equipment as it rotates, thus providing a slip-resistant barrier. Thus, by defining the slots on the inner circumferential wall of inner ring 140, automated assembly of inner ring 140 is achieved.

[0060] Preferably, there are four slots, and the four slots are evenly arranged along the circumference of the inner wall of the inner ring 140, so that when the installation device drives the inner ring 140 to rotate, the interaction force between the installation device and the inner ring 140 is evenly distributed, so that the inner ring 140 can be smoothly screwed into the sleeve 110.

[0061] Of course, in other embodiments, the anti-slip portion 141 can also be one or more blocks axially protruding along the inner wall of the inner ring 140 for clamping the installation device; or, the anti-slip portion 141 can also be semicircular protrusions densely distributed on the inner wall of the inner ring 140.

[0062] In a specific embodiment, liquid sealant is filled between the lens 120 and the sleeve 110, and the liquid level of the liquid sealant is lower than the second edge surface 1222 of the incident surface 122 of the lens 120, so as to prevent the dried sealant from protruding from the second edge surface 1222, thereby causing the inner ring 140 to be unable to abut against the second edge surface 1222 of the lens 120, thereby affecting the assembly accuracy of the lens 120.

[0063] According to another aspect of the present application, an embodiment of the present application further provides a lighting fixture, see Figure 6 The lighting fixture 100 includes a main body 2 and the above-mentioned lens structure 1; the main body 2 has a light-emitting portion; the lens structure 1 is assembled on one end of the main body 2 provided with the light-emitting portion.

[0064] Compared with the prior art, the lighting fixture 100 provided in the embodiment of the present invention adopts the above-mentioned lens structure 1, and the lens structure 1 is installed on the light-emitting portion of the main body 2, so that the lighting fixture 100 as a whole has a higher assembly accuracy, and the lighting effects of the lighting fixtures 100 of the same batch after assembly are not significantly different or are consistent.

[0065] In one embodiment, see Figure 6 The inner peripheral wall of one end of the sleeve 110 for assembling the main body 2 has a first stepped portion 113 for abutting the main body 2.

[0066] By the above arrangement, the first step portion 113 of the lens structure 1 abuts against the main body 2 , thereby ensuring a high assembly accuracy between the lens structure 1 and the main body 2 .

[0067] In a specific embodiment, see Figure 6 The outer peripheral wall of one end of the main body 2 for assembling the sleeve 110 has a second step portion 211 and a third step portion 212 distributed up and down in a stepped manner along the axial direction; the end face of one end of the sleeve 110 for assembling the main body 2 abuts against the end face of the second step portion 211; the outer peripheral wall of the third step portion 212 is threadedly connected to the inner peripheral wall of the sleeve 110.

[0068] More specifically, the outer shell 210 of the main body 2 is threadedly connected to the sleeve 110. The inner circumferential wall of the annular protrusion 111 of the sleeve 110, which is used to assemble the lens 120, is provided with internal threads, as described in the above embodiment. A matching external thread is provided on the outer circumferential wall of the third step 212 of the outer shell 210, thereby achieving a threaded connection between the main body 2 and the lens structure 1.

[0069] In this way, after the third step portion 212 is screwed into the sleeve 110, the end face of the first step portion 113 (that is, the end face of the sleeve 110) abuts against the end face of the second step portion 211, thereby achieving higher assembly accuracy between the lens structure 1 and the main body 2, and ensuring that the lighting fixtures 100 in the same batch have consistent light output effects during mass production.

[0070] Of course, in some embodiments, the lens structure 1 and the main body 2 can also be connected by plugging, snapping or fixing to achieve higher assembly accuracy between the lens structure 1 and the main body 2. The connection form between the lens structure 1 and the main body 2 is selected according to actual needs and is not limited here.

[0071] In a specific embodiment, see Figure 6 The main body 2 includes a housing 210, a light-emitting element 230, and a power supply assembly 220. The housing 210 is mounted on the end of the sleeve 110 where the inner ring 140 is provided. The light-emitting element 230 is provided at the end of the housing 210 where the sleeve 110 is mounted. The light-emitting element 230 and the lens 120 are spaced a fixed distance apart. The power supply assembly 220 is disposed within the housing 210 and is electrically connected to the light-emitting element 230.

[0072] In this way, by ensuring the positional accuracy between the light emitting element 230 and the lens 120 , a high assembly accuracy between the lens structure 1 and the main body 2 of the lighting fixture 100 is ensured.

[0073] In a specific embodiment, see Figure 6 A gap is provided between the end of the outer shell 210 close to the inner ring 140 and the inner ring 140 .

[0074] In this way, it is ensured that when the main body 2 and the lens structure 1 are assembled, no interference occurs between the inner ring 140 and the outer shell 210 , thereby ensuring the position accuracy between the lens 120 and the light-emitting element 230 .

[0075] In a specific embodiment, see Figure 6 An annular groove is provided on the outer peripheral wall of the second step portion 211, and a sealing ring is embedded in the annular groove. The sealing ring is respectively in contact with the bottom of the annular groove and the inner peripheral wall of the first step portion 113 to achieve a waterproof seal between the main body 2 and the lens structure 1.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lens structure, characterized in that: include: A sleeve, wherein an annular protrusion is circumferentially provided on the inner peripheral wall of the sleeve; a lens disposed in the sleeve, wherein the edge of the emission surface of the lens abuts against one side of the annular protrusion, and a gap is provided between the circumferential side wall of the lens and the inner circumferential wall of the sleeve; a sealing body, filling the gap; and an inner ring disposed in the sleeve and abutting against an edge of the incident surface of the lens; the lens is pressed against the annular protrusion via the inner ring, so that the lens and the annular protrusion and the lens and the inner ring are rigidly abutted against each other; Wherein, the sealing body is a sealing ring or a sealant; The inner ring is threadedly connected to the sleeve.

2. The lens structure according to claim 1, wherein: A groove is provided on one side of the annular protrusion that contacts the lens, and the edge of the lens is embedded in the groove.

3. The lens structure according to claim 2, wherein: The exit surface includes a first curved surface and a first edge surface surrounding the first curved surface, wherein the first edge surface abuts against the bottom surface of the groove; The incident surface includes a second curved surface and a second edge surface surrounding the second curved surface, and the second edge surface abuts against a portion of the end surface of the inner ring.

4. The lens structure according to claim 2 or 3, wherein: The circumferential side wall portion abuts against the groove wall of the groove, and the remaining portion of the circumferential side wall forms the gap with the inner circumferential wall of the sleeve.

5. The lens structure according to claim 1, wherein: An anti-slip portion is provided on the inner peripheral wall of the inner ring.

6. A lighting fixture, characterized in that: include: The main body has a light emitting part; as well as The lens structure according to any one of claims 1 to 5, wherein the lens structure is assembled at an end of the main body where the light output portion is provided.

7. The lighting fixture according to claim 6, wherein: The inner peripheral wall of one end of the sleeve for assembling the main body is provided with a first step portion for abutting against the main body.

8. The lighting fixture according to claim 7, wherein: The outer peripheral wall of one end of the main body for assembling the sleeve has a second step portion and a third step portion distributed up and down in a stepped shape along the axial direction; The end surface of one end of the sleeve used for assembling the main body abuts against the end surface of the second stepped portion; The outer peripheral wall of the third step portion is threadedly connected to the inner peripheral wall of the sleeve.

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