A spotlight with a replaceable optical lens

Abstract

The utility model relates to a lamp technical field discloses a quick replacement optical lens's spotlight, include: the mounting space with recess of radiator, light source subassembly assembles to the mounting space for lighting, lens subassembly includes lens bowl and lens, the upper end of lens bowl is opposite with light source subassembly, the upper end of lens has the light inlet surface of curved setting to the downside, the lower end of lens has the light outlet surface of curved setting to the upside, the surface ring is connected with radiator, and the surface ring fixes lens subassembly in radiator, is equipped with the light outlet hole on the surface ring, the light of light source subassembly passes through lens, and the light is shot into from the light inlet surface and is shot out from the light outlet surface after refraction and reflection, and the light that shoots out converges to the axis of lens. The utility model adopts the cross light outlet principle, and the light is accurately controlled as the cross convergence state, realizes the lighting effect of deep anti glare, high light efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a spotlight with a quick-change optical lens. Background Technology

[0002] Ordinary spotlights have large light output openings, large beam angles, and large light spot coverage areas, resulting in low contrast and poor focusing effects, making them difficult to apply to high-precision lighting scenarios such as museum display cases, jewelry displays, and wall texture emphasis.

[0003] Therefore, improvements are needed. Utility Model Content

[0004] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a spotlight with a quickly replaceable optical lens, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a spotlight with a quickly replaceable optical lens, comprising: a heat sink having a recessed mounting space; a light source assembly assembled into the mounting space for illumination; a lens assembly including a lens bowl and a lens mounted within the lens bowl; the upper end of the lens bowl abutting against the light source assembly; the upper end of the lens having a downwardly curved light-inlet surface and the lower end of the lens having an upwardly curved light-outlet surface; a face ring connected to the heat sink, which fixes the lens assembly within the heat sink; the face ring having a light-outlet hole; wherein, light emitted by the light source assembly passes through the lens, enters from the light-inlet surface, is refracted and reflected, and exits from the light-outlet surface, with the emitted light converging onto the axis of the lens.

[0006] Furthermore, the light-incoming surface has a first convex surface protruding upward in the middle, and the periphery of the first convex surface is a first curved surface curving upward; the light-outcoming surface has a second convex surface protruding downward in the middle, and the periphery of the second convex surface is a second curved surface curving downward; wherein, light passes through the first convex surface and is emitted from the second convex surface; after passing through the first curved surface, the light is reflected and emitted through the second curved surface.

[0007] Furthermore, the light source assembly includes the COB light source and a light source bracket, wherein the light source bracket fixes the COB light source to the heat sink by fasteners.

[0008] Furthermore, the face ring and the heat sink are connected by a thread.

[0009] Furthermore, the light emission angle of the lens includes 15°, 24°, 36° or 50°.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] Unique lens optical design: The lens employs a special aspherical structure, with a downward-curved light-incoming surface at the top and an upward-curved light-outcoming surface at the bottom. This design efficiently collects, refracts, and reflects light, ultimately converging the light onto the lens axis to form a precise light spot with a small beam angle and high contrast.

[0012] Modular and quick-change structure: The lens is held in a "lens bowl" and secured to the heat sink using a detachable "face ring". This structure enables modularity of the lens assembly, making it very simple and quick to change lenses of different angles without the need for complicated tools or disassembling the entire luminaire. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model.

[0015] Figure 3 This is an exploded structural diagram of the present invention.

[0016] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0017] Figure 5 This is a cross-sectional view of the lens.

[0018] Figure 6 This is a diagram illustrating the disassembly and replacement of the lens assembly.

[0019] Figure 7 This is a diagram illustrating the disassembly and replacement of the lens assembly.

[0020] Figure 8 This is a diagram illustrating the disassembly and replacement of the lens assembly.

[0021] Figure 9 This is a diagram illustrating the disassembly and replacement of the lens assembly.

[0022] Reference numerals: 1. Heat sink; 2. Light source assembly; 3. Lens assembly; 4. Lens bowl; 5. Lens; 6. Light-inlet surface; 7. Light-out surface; 8. Surface ring; 9. Light-out aperture; 10. First convex surface; 11. First curved surface; 12. Second convex surface; 13. Second curved surface; 14. COB light source; 15. Light source bracket. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In view of the technical problems described in the background art, such as Figure 1-9As shown, a spotlight with a quickly replaceable optical lens 5 is provided, comprising: a heat sink 1 having a recessed mounting space; a light source assembly 2 assembled into the mounting space for illumination; a lens assembly 3 including a lens cup 4 and a lens 5 mounted within the lens cup 4; the upper end of the lens cup 4 abuts against the light source assembly 2; the upper end of the lens 5 has a downwardly curved light-inlet surface 6, and the lower end of the lens 5 has an upwardly curved light-outlet surface 7; a face ring 8 connected to the heat sink 1, fixing the lens assembly 3 within the heat sink 1; the face ring 8 has a light-outlet hole 9; wherein, light emitted from the light source assembly 2 passes through the lens 5, enters from the light-inlet surface 6, is refracted and reflected, and exits from the light-outlet surface 7, converging to the axis of the lens 5.

[0026] This embodiment provides a spotlight with a quick-change optical lens, the specific structure of which is as follows: the spotlight mainly includes a heat sink 1, a light source assembly 2, a lens assembly 3, and a face ring 8.

[0027] Heat sink 1 is typically made of a material with good thermal conductivity, such as aluminum alloy. Its main body is a cup-shaped structure with one open end, thus forming a recessed installation space. Light source assembly 2 is used to emit light. Light source assembly 2 is connected to heat sink 1 to facilitate heat conduction and dissipation.

[0028] Lens assembly 3 includes a lens bowl 4 and a lens 5. The lens bowl 4 is a cup-shaped metal or plastic component with a support structure on its inner side that matches the shape of the lens 5, used to support and position the lens 5. The upper end of the lens 5 (the end closer to the light source) has a downwardly curved light-entry surface 6. The lower end of the lens 5 (the light-exit end) has an upwardly curved light-exit surface 7.

[0029] The face ring 8 is an annular pressure ring, and its inner edge forms a light-emitting hole 9.

[0030] In the above technical solution, lens 5 adopts a special aspherical structure, with a downward-curved light-incoming surface 6 at the upper end and an upward-curved light-outcoming surface 7 at the lower end. This design can efficiently collect, refract, and reflect light, ultimately converging the light onto the axis of lens 5 to form a precise light spot with a small beam angle and high contrast.

[0031] Referring to the figure, the light-inlet surface 6 has an upwardly protruding first convex surface 10 in the middle, and the periphery of the first convex surface 10 is an upwardly curved first curved surface 11; the light-outlet surface 7 has a downwardly protruding second convex surface 12 in the middle, and the periphery of the second convex surface 12 is a downwardly curved second curved surface 13; wherein, light passes through the first convex surface 10 and is emitted from the second convex surface 12; after passing through the first curved surface 11, the light is reflected and emitted through the second curved surface 13.

[0032] The light emitted from the COB light source 14 is directed towards the lens 5. A portion of the central light rays directly enters the first convex surface 10, undergoes a first refraction on this surface, continues to propagate within the lens 5, and then undergoes a second refraction on the second convex surface 12, finally converging and exiting. Another portion of the peripheral light rays enters the first curved surface 11 at a larger angle. After refraction, their propagation direction changes, and they are directed towards the sidewall of the lens 5. Due to the principle of total internal reflection, this portion of the light undergoes total internal reflection on the inner surface of the sidewall of the lens 5, changes its path, and is directed towards the second curved surface 13. After further refraction, it also converges and exits towards the axis of the lens 5. Through this optical path design, stray light emitted from the COB light source 14 is effectively collected and controlled, ultimately converging all light rays towards the axis of the lens 5, forming a precise light spot with a small beam angle, clear boundaries, high central illuminance, and strong contrast.

[0033] The light source assembly 2 includes the COB light source 14 and the light source bracket 15. The light source bracket 15 fixes the COB light source 14 to the heat sink 1 by fasteners.

[0034] Specifically, the light source assembly 2 includes a COB light source 14 and a light source bracket 15. The COB light source 14 is tightly attached to the bottom center of the mounting space using a thermally conductive medium such as thermal grease to ensure good heat conduction. The light source bracket 15 is a ring-shaped or frame-shaped structure that is tightened and fixed to the COB light source 14 with fasteners such as screws, and is also fixed to the heat sink 1. The light source bracket 15 has a through hole in its center to ensure that the light emitted by the COB light source 14 is not blocked.

[0035] The face ring 8 is threadedly connected to the heat sink 1.

[0036] The outer wall of the open end of the radiator 1 is provided with external threads. The inner wall of the face ring 8 is provided with internal threads for connection with the external threads of the open end of the radiator 1. By designing the threaded connection method, the replacement or maintenance of the lens assembly 3 can be quickly achieved.

[0037] The specific assembly process is as follows: First, place the COB light source 14 at the bottom of the mounting space of the heat sink 1, then cover it with the light source bracket 15 and lock it with fasteners to complete the installation of the light source assembly 2. Next, place the lens cup 4 (i.e., the entire lens assembly 3) with the lens 5 already assembled into the open end of the heat sink 1, so that the upper edge of the lens cup 4 abuts against the light source bracket 15 or the peripheral area of ​​the COB light source 14. Finally, screw the face ring 8 into the external thread of the heat sink 1. By tightening the face ring 8, its inner edge will press against the bottom edge of the lens cup 4, thereby firmly and centrally pressing the entire lens assembly 3 into the heat sink 1.

[0038] The light output angle of the lens 5 includes 15°, 24°, 36° or 50°.

[0039] To adapt to different lighting scenarios, multiple lens assemblies 3 can be prepared, each containing a lens 5 with a different optical curvature, thus providing different beam angles such as 15°, 24°, 36°, or 50°. When the user needs to change the beam angle of the spotlight, simply rotate counterclockwise to remove the face ring 8, then remove the currently installed lens assembly 3, insert another lens assembly 3 with the desired beam angle, and finally tighten the face ring 8 clockwise. The entire process requires no disassembly of the lamp body or the use of any tools (or only simple tools), enabling quick replacement of the optical lens 5 and greatly improving the applicability and ease of use of the lamp.

[0040] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the technical scope of this utility model.

Claims

1. A spotlight with a quickly replaceable optical lens, characterized in that, include: A radiator having a recessed mounting space; A light source assembly, which is assembled into the mounting space and is used for illumination; A lens assembly includes a lens bowl and a lens installed inside the lens bowl; the upper end of the lens bowl abuts against the light source assembly; the upper end of the lens has a downwardly curved light-inlet surface, and the lower end of the lens has an upwardly curved light-outlet surface. A face ring is connected to the heat sink, and the face ring fixes the lens assembly inside the heat sink; the face ring is provided with a light-emitting hole; The light emitted by the light source assembly passes through the lens, enters from the light-inlet surface, is refracted and reflected, and exits from the light-outlet surface. The emitted light converges to the axis of the lens.

2. The spotlight with a quickly replaceable optical lens according to claim 1, characterized in that: The light-incoming surface has a first convex surface that bulges upward in the middle, and the periphery of the first convex surface is a first curved surface that bends upward; the light-outcoming surface has a second convex surface that bulges downward in the middle, and the periphery of the second convex surface is a second curved surface that bends downward. In this configuration, light rays pass through the first convex surface and exit from the second convex surface; after passing through the first curved surface, the light rays are reflected and exit through the second curved surface.

3. The spotlight with a quickly replaceable optical lens according to claim 1, characterized in that: The light source assembly includes a COB light source and a light source bracket, wherein the light source bracket fixes the COB light source to the heat sink by fasteners.

4. The spotlight with a quickly replaceable optical lens according to claim 1, characterized in that: The face ring is threadedly connected to the heat sink.

5. The spotlight with a quickly replaceable optical lens according to claim 1, characterized in that: The light output angle of the lens includes 15°, 24°, 36° or 50°.

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