CN221424681U

CN221424681U - Lighting device

Info

Publication number: CN221424681U
Application number: CN202323047066.XU
Authority: CN
Inventors: 丁柏平; 杨锋; 黄阳彪; 刘兴军; 龚政; 黄思浩
Original assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Current assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Priority date: 2023-11-10
Filing date: 2023-11-10
Publication date: 2024-07-26
Anticipated expiration: 2033-11-10

Abstract

The lighting device of the present utility model includes: a lamp body; the lamp cap is arranged at the top end of the lamp body, a light-emitting element and a reflecting cup covered by the light-emitting element are arranged in the lamp cap, and light emitted by the light-emitting element is focused by the reflecting cup and then emitted from a light outlet of the lamp cap; and the light spot dispersing lens is detachably arranged at the light outlet, the light spot dispersing lens is provided with a light spot dispersing structure for covering the light outlet, and light rays emitted from the light outlet are dispersed and deformed after passing through the light spot dispersing structure. In the lighting equipment, the shape of the light spot formed by the lighting equipment is changed by installing the light spot dispersing structure, so that the excessive brightness of the lighting equipment under the normal use condition is controlled, the mode is simple and effective, the cost is low, and when the lighting equipment is required to carry out high-brightness lighting, the light spot dispersing lens is detached, so that the use requirements of users under different conditions are met.

Description

Lighting device

Technical Field

The utility model belongs to the technical field of lighting equipment, and particularly relates to the lighting equipment.

Background

The LED strong light flashlight is a novel lighting tool taking a light emitting diode as a light source, has the advantages of electricity saving, durability, strong brightness and the like, and is often used in the special fields of public security, fire protection, troops, electric power, railways, petroleum, chemical industry and the like.

The light source structure of the existing flashlight mainly adopts a structural combination of a point light source and a parabolic reflector, wherein the light source is arranged at the bottom end of the reflector, and the light emitted by the light source and the light emitted by the reflector can be overlapped, so that a light spot presents a central main light spot with high brightness and peripheral auxiliary light spots with lower brightness.

However, the flashlight does not need too high brightness in normal use, so that the shape of the light spot is required to be changed to control the brightness, but the method for changing the shape of the light spot by modifying the reflector is complex and has high cost.

Disclosure of utility model

The embodiment of the utility model provides a lighting device, which aims to solve the technical problem of how to simply and effectively change the spot shape of a flashlight so as to control the excessive brightness of the flashlight.

An embodiment of the present utility model provides a lighting apparatus, including:

a lamp body;

The lamp cap is arranged at the top end of the lamp body, a light-emitting element and a reflecting cup covered by the light-emitting element are arranged in the lamp cap, and light emitted by the light-emitting element is focused by the reflecting cup and then emitted from a light outlet of the lamp cap; and

The light spot dispersing lens is detachably arranged at the light outlet, the light spot dispersing lens is provided with a light spot dispersing structure covering the light outlet, and light rays emitted from the light outlet are dispersed and deformed after passing through the light spot dispersing structure.

In one embodiment, the spot-dispersing lens includes:

The lens body and the light outlet are detachably arranged, and the light spot dispersing structure is arranged on the lens body; and

The frame is arranged at the top edge of the lens body, and the shape of the frame is matched with the shape of the lamp cap.

In one embodiment, the lamp head comprises:

The light-emitting element and the reflecting cup are arranged in the shell; and

The upper cover is arranged at the top of the shell, the light outlet is a top opening of the upper cover, the inner wall of the upper cover extends inwards to form a protruding peripheral edge, and the lens body is clamped in the upper cover and is supported on the protruding peripheral edge.

In one embodiment, the height difference between the bottom of the lens body and the bottom of the rim is equal to the height difference between the top of the protruding peripheral edge and the top edge of the upper cover, and the radius of the lens body is equal to the inner diameter of the upper shell.

In one embodiment, the connection part between the protruding periphery and the upper cover is provided with an inward concave round chamfer part, the bottom of the lens body is provided with an outward convex assembly part, and the assembly part is matched with the round chamfer part.

In one embodiment, at least one notch is provided at the edge of the rim.

In one embodiment, the light spot dispersing structure is a honeycomb concave lens array, a columnar concave lens array arranged in parallel, a ring concave lens array arranged in concentric circles, or a grating lens array.

In one embodiment, the light spot dispersing lens comprises a first dispersing lens and a second dispersing lens which are stacked, and the first dispersing lens is positioned at one side close to the light outlet;

The first dispersing lens is provided with a first dispersing structure, the second dispersing lens is provided with a second dispersing structure, the first dispersing structure is different from the second dispersing structure, and the projection of the second dispersing structure towards the direction of the first dispersing structure is intersected with the first dispersing structure.

In one embodiment, the first dispersing structure is a columnar concave lens array arranged in parallel, and the second dispersing structure is a grating lens array.

In one embodiment, the projection of the second dispersing structure toward the first dispersing structure intersects the first dispersing structure at 90 °.

In the lighting equipment, the detachable light spot dispersing lens is arranged at the light outlet of the lamp cap, the light spot dispersing structure covering the light outlet is arranged on the light spot dispersing lens, and light rays emitted from the light outlet are dispersed and deformed after passing through the light spot dispersing structure, namely, the shape of light spots formed by the lighting equipment is changed by installing the light spot dispersing structure, so that the excessive brightness of the lighting equipment under the normal use condition is controlled, the lighting equipment is simple and effective in mode and low in cost, and when the lighting equipment is required to carry out high-brightness lighting, the light spot dispersing lens is detached, so that the use requirements of users under different conditions are met.

Drawings

Fig. 1 is a schematic perspective exploded view of an illumination device according to an embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of a lighting device according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of portion A of the lighting device shown in FIG. 2;

FIG. 4 is a schematic view of a portion of a light spot dispersing structure of a honeycomb concave lens array according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a light spot dispersing structure of a honeycomb concave lens array according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a portion of a light spot dispersing structure of a parallel array of concave lenticular lenses according to an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a light spot dispersing structure of a parallel array of cylindrical concave lenses according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a portion of a light spot dispersing structure according to an embodiment of the present utility model;

Fig. 9 is a schematic perspective view of the light spot dispersing structure according to the embodiment of the present utility model in the form of a grating lens array;

FIG. 10 is a schematic diagram of a portion of a light spot dispersing structure according to an embodiment of the present utility model when a lenticular lens array is combined with a lenticular lens array, wherein the lenticular lens array is arranged in parallel;

FIG. 11 is a schematic perspective view of a combination of a lenticular lens array and a lenticular lens array with a parallel array of light spot dispersing structures according to an embodiment of the present utility model;

FIG. 12 is a schematic cross-sectional view in the B-B direction of the spot dispersing structure shown in FIG. 10;

FIG. 13 is an enlarged schematic view of a portion D of the spot-dispersing structure shown in FIG. 12;

fig. 14 is a schematic cross-sectional view of the spot dispersing structure shown in fig. 10 in the C-C direction.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. Furthermore, it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated in the description of the direction and positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of description of the present utility model and simplification of the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 4 and fig. 6, 8 and 10, an illumination device 100 according to an embodiment of the utility model includes a lamp body 30, a lamp cap 20 disposed at a top end of the lamp body 30, and a light spot dispersing lens 10 detachably disposed on the lamp cap 20, wherein a light emitting element 21 and a reflective cup 22 covering the light emitting element 21 are disposed in the lamp cap 20, light emitted by the light emitting element 21 is condensed by the reflective cup 22 and then emitted from a light outlet 241 of the lamp cap 20, the light spot dispersing lens 10 is detachably disposed at the light outlet 241, the light spot dispersing lens 10 is provided with a light spot dispersing structure 111 covering the light outlet 241, and light emitted from the light outlet 241 is dispersed and deformed after passing through the light spot dispersing structure 111.

In the lighting device 100 of the embodiment of the utility model, the detachable light spot dispersing lens 10 is arranged at the light outlet 241 of the lamp cap 20, the light spot dispersing structure 111 covering the light outlet 241 is arranged on the light spot dispersing lens 10, and the light emitted from the light outlet 241 is dispersed and deformed after passing through the light spot dispersing structure 111, namely, the shape of the light spot formed by the lighting device 100 is changed by installing the light spot dispersing structure 111, so that the excessive brightness of the lighting device 100 under the normal use condition is controlled, the mode is simple and effective, the cost is lower, and when the lighting device 100 is required to carry out highlight illumination, the light spot dispersing lens 10 is detached, thereby meeting the use requirements of users under different conditions.

Specifically, in the present embodiment, the lighting device 100 is a flashlight, and further includes a controller (not shown) disposed in the lamp body 30, a power supply assembly (not shown) disposed in the lamp body 30, and a trigger button disposed on the lamp body 30 and electrically connected to the controller, the controller is electrically connected to the power supply assembly, and the light emitting element 21 is electrically connected to the controller.

Wherein, lamp holder 20 can be dismantled with lamp body 30 and set up, can dismantle the setting like through modes such as screw thread, buckle, be convenient for change, equipment, realize the direct adaptation of both. The lamp cap 20 is arranged on the top of the lamp body 30, and when the user holds the lamp body 30, the lamp cap 20 can be made to illuminate correspondingly in the front direction.

Further, the lamp body 30 may be generally hollow and cylindrical, and may be provided with external lines for the user to hold with his or her hand, and internal lines for the components, such as the controller and the power supply assembly.

The power supply assembly may be a rechargeable battery or a storage battery, and is electrically connected to components in the lighting apparatus 100 that need to be powered, for example, to supply power to the light emitting element 21 to make it work by emitting light.

Preferably, the power supply assembly is a rechargeable battery, such as a lithium battery, so that the lighting device 100 can be repeatedly used for a long period of time, and the user experience is better.

The trigger key may be a virtual key or an entity key, and the virtual key is disposed on the light body 30 to facilitate user operation, such as pressing operation, clicking operation, sliding operation, etc., and the controller controls different operations of the lighting device 100 by receiving different operations of the trigger key by the user.

In order to control the cost and provide more practical trigger feedback for the user, in this embodiment, the physical key is adopted as a specific form of the trigger key.

In this embodiment, the controller may employ a single-chip microcomputer for controlling illumination of the illumination apparatus 100 when receiving a trigger operation from the trigger key. Since the controller is electrically connected to the light emitting element 21, the illumination brightness, illumination time, and on/off of the light emitting element 21 can be controlled.

It should be noted that, in addition to the components mentioned above, the lighting device 100 of the present embodiment further has other basic structures of the lighting device 100 in the art, and the basic functions of the lighting device 100 in the art can be achieved, which are not described in detail herein.

In this embodiment, the light spot dispersing lens 10 may be an optical lens, and the light spot dispersing structure 111 may be an optical structure, for example, the light spot dispersing structure 111 may be a convex mirror structure and/or a concave mirror structure, etc. for realizing the dispersion deformation of the light, that is, the light spot emitted from the lamp cap 20 passes through the light spot dispersing structure 111 and then is dispersed and deformed into a shape different from the main light spot in the prior art.

In one embodiment, the light spot dispersing lens 10 may be detachably mounted to the lamp base 20 by clamping, adhering, screwing, or the like.

For example: the size of the light spot dispersing lens 10 can be designed to be similar to that of the light outlet 241, so that the light spot dispersing lens 10 is directly clamped and fixed on the light outlet 241; or the edge of the light spot dispersing lens 10 can be provided with threads, and the lamp holder 20 (the light outlet 241) is correspondingly provided with threads, so that the light spot dispersing lens 10 is screwed on the lamp holder 20; or an adhesive can be arranged on the lamp cap 20 or the light spot dispersing lens 10 so as to realize the adhesion of the lamp cap and the light spot dispersing lens.

The above description of the removable arrangement of the spot dispersing lens 10 and the lamp head 20 is exemplary only and should not be construed as limiting the utility model since those skilled in the art may select a particular removable arrangement in a particular embodiment.

In one embodiment, the spot dispersing lens 10 may be made of transparent plastic or glass to avoid affecting the light emission.

In a preferred embodiment, the spot dispersing lens 10 is made of transparent plastic.

Referring to fig. 1 to 4, and fig. 6, 8 and 10, in one embodiment, the light spot dispersing lens 10 includes a lens body 11 and a frame 12 disposed at a top edge of the lens body 11, the lens body 11 and the light outlet 241 are detachably disposed, the light spot dispersing structure 111 is disposed on the lens body 11, and a shape of the frame 12 is adapted to a shape of the lamp cap 20.

In this embodiment, the frame 12 may be understood as a ledge or a flange extending outwards from the top edge of the lens body 11, and the shape of the ledge or flange is adapted to the shape of the lamp cap 20, so that the appearance of the lighting device 100 is more attractive and regular, and the frame 12 can also reduce the damage of the lens body 11 during assembly and disassembly.

The frame 12 and the lens body 11 can be integrally formed, i.e. the frame 12 and the lens body 11 can be integrally formed, so that the production process is simplified to reduce the production cost, and the structural integrity is better. Of course, the frame 12 and the lens body 11 may be separate structures, so that the replacement is more convenient when any one of them is damaged.

Referring to fig. 1 to 3, in one embodiment, the lamp cap 20 includes a housing 23 and an upper cover 24 disposed on top of the housing 23, the light emitting element 21 and the reflector cup 22 are disposed in the housing 23, the light outlet 241 is a top opening of the upper cover 24, a protruding peripheral edge 242 is formed by extending inward an inner wall of the upper cover 24, and the lens body 11 is clamped in the upper cover 24 and is supported on the protruding peripheral edge 242.

In the present embodiment, the housing 23 is an external structure of the lamp cap 20, and is used for accommodating and disposing the reflector 22, the upper cover 24, the light-emitting element 21, and the like. The shell 23 and the upper cover 24 can be made of plastic, so that the shell is convenient to design into a desired shape, has better strength and hardness, and can improve the protection of an internal structure and the service life of the shell.

The light outlet 241 of the upper cover 24 is provided with a protective lens 243 to protect the light-emitting element 21 in the lamp cap 20, more, the inner wall of the upper cover 24 is provided with a groove 244 for clamping the protective lens 243, the upper cover 24 above the groove 244 extends inwards to form the convex peripheral edge 242, and the convex peripheral edge 242 is used for supporting the protective lens 243 on one hand and preventing the protective lens 243 from loosening and falling off on the other hand and is used for supporting the lens body 11.

In one embodiment, the upper cover 24 may also be detachably disposed on the housing 23, so that the light reflecting cup 22, the light emitting element 21, and other structures can be mounted in the housing 23 or detached from the housing 23 after being detached, and the operation is easier.

In one embodiment, the height difference between the bottom of the lens body 11 and the bottom of the bezel 12 is equal to the height difference between the top of the protruding rim 242 and the top edge of the upper cover 24, and the radius of the lens body 11 is equal to the inner diameter of the upper shell, so that the spot-dispersing lens 10 as a whole is adapted to the top structure of the lamp head 20, so that the top of the lighting device 100 is flat and regular.

Referring to fig. 2 and 3, in one embodiment, a concave rounded portion 245 is provided at the connection between the protruding peripheral edge 242 and the upper cover 24, and an outwardly protruding mounting portion 112 is provided at the bottom of the lens body 11, where the mounting portion 112 is adapted to the rounded portion 245.

In this embodiment, the chamfer angle of the round chamfer portion 245 of the upper cover 24 and the angle of the assembling portion 112 on the lens body 11 are smaller, for example, they can be designed to be 81 ° and 85 ° respectively, so that the assembling portion 112 of the spot dispersing lens 10 can be clamped into the round chamfer portion 245 of the upper cover 24 by slightly applying force by means of the elasticity of the material itself when the spot dispersing lens 10 is assembled, and the assembling of the two can be simply and effectively realized without detachment and stability in a natural state.

Referring to fig. 1, in one embodiment, at least one notch 121 is provided at an edge of the frame 12.

Because the lens body 11 is assembled compactly after being clamped into the upper cover 24, the edge of the frame 12 can be flattened to form a notch 121 which is convenient for lifting the lens body 11, so that the facula dispersing lens 10 can be conveniently detached by applying force.

Referring to fig. 4 to 9, in one embodiment, the light spot dispersing structure 111 is a honeycomb concave lens array, a parallel columnar concave lens array, a concentric annular concave lens array or a grating lens array.

As shown in fig. 4 and 5, the honeycomb concave lens array may be disposed on the inner surface of the lens body 11, and is composed of a plurality of honeycomb concave lens units, each unit is a concave lens structure, and the outer surface is a plane. The concave lens unit can disperse and mix the light emitted by the light-emitting unit, so that the light-emitting effect is more uniform and softer, and the light-emitting is prevented from being focused in the central area to form a small light spot with excessively high brightness.

As shown in fig. 6 and fig. 7, the inner surface of the lens body 11 is provided with a cylindrical concave lens array arranged in parallel, and the outer surface is a plane, at this time, the lens body 11 has a single direction divergent effect, so that the main light spot emitted by the light emitting unit forms a light spot with a rectangular irradiation range after passing through the lens body 11, which lengthens the range of the light spot and effectively improves the irradiation range of the lamp cap 20.

The concentric annular concave lens array is similar to the cylindrical concave lens, and is different in that the inner surface of the lens body 11 is an annular concave lens with the center of the lens as the center, and the irradiation range of the emergent light spots is enlarged by utilizing the divergent action of the concave lens, and the spot shape is circular.

As shown in fig. 8 and 9, a plurality of triangular/tetragonal prism gratings may be arranged in parallel on the outer surface of the lens body 11, so that the cross section of the lens body 11 is saw-tooth, and the light spots deviate from the arrangement direction of the triangular/tetragonal prism array due to refraction of the prisms during light emitting.

Referring to fig. 1 and fig. 10 to fig. 14, in one embodiment, the light spot dispersing lens 10 includes a first dispersing lens 10a and a second dispersing lens 10b stacked together, the first dispersing lens 10a is located at a side close to the light outlet 241, the first dispersing lens 10a is provided with a first dispersing structure 11a, the second dispersing lens 10b is provided with a second dispersing structure 11b, the first dispersing structure 11a is different from the second dispersing structure 11b, and a projection of the second dispersing structure 11b toward the first dispersing structure 11a intersects with the first dispersing structure 11 a.

Specifically, by arranging the first dispersing lens 10a and the second dispersing lens 10b, after the main light spot emitted from the lamp cap 20 passes through the first dispersing structure 11a and the second dispersing structure 11b, the main light spot can be dispersed and changed into light spots with different shapes based on the combination and cooperation of the first dispersing structure 11a and the second dispersing structure 11b with different shapes on the two, so as to meet the specific use requirement of a user.

The projection of the second dispersing structure 11b toward the first dispersing structure 11a intersects with the first dispersing structure 11a, so that the situation that the light spot shape formed by dispersing is single due to the complete superposition of the two structures can be avoided.

In one embodiment, the projection of the second dispersing structure 11b towards the first dispersing structure 11a may intersect the first dispersing structure 11a at an angle of 10 ° to 90 ° to form more spots of different shapes.

Referring to fig. 10 to 14, in one embodiment, the first dispersing structures 11a are columnar concave lens arrays arranged in parallel, the second dispersing structures 11b are grating lens arrays, and the projection of the second dispersing structures 11b toward the first dispersing structures 11a intersects with the first dispersing structures 11a at 90 °.

When the grating lens array (i.e., the second dispersing structure 11 b) is combined with the columnar concave lens array (i.e., the first dispersing structure 11 a) arranged in parallel, the inner surface of the light spot dispersing lens 10 is the columnar concave lens array arranged in parallel, and the two lens arrays on the inner surface and the outer surface of the light spot dispersing lens 10 are staggered by 90 degrees. When the main light spot emitted from the lamp cap 20 irradiates on the laminated lens arrays, the light spot presents a square light spot with a larger irradiation range in the directions of the two lens arrays by the refraction action of the lens arrays on the inner surface and the outer surface, so that the shape of the main light spot is dispersed and changed.

In the description of the present specification, the descriptions of the terms "embodiment one", "embodiment two", and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A lighting device, comprising:

a lamp body;

2. A lighting device as recited in claim 1, wherein said spot-dispersing lens comprises:

3. A lighting device as recited in claim 2, wherein said lamp head comprises:

4. A lighting device as recited in claim 3, wherein a height difference between a bottom of said lens body and a bottom of said bezel is equal to a height difference between a top of said convex peripheral edge and a top edge of said upper cover, and a radius of said lens body is equal to an inner diameter of said upper housing.

5. A lighting device as recited in claim 3, wherein said convex peripheral edge is provided with an inwardly concave rounded chamfer at a junction with said upper cover, and said lens body is provided with an outwardly convex fitting portion at a bottom thereof, said fitting portion being adapted to said rounded chamfer.

6. A lighting device as recited in claim 2, wherein at least one notch is provided at an edge of the bezel.

7. A lighting device as recited in claim 1, wherein said light spot dispersing structure is a honeycomb concave lens array, a parallel arranged columnar concave lens array, a concentric circular arranged annular concave lens array or a grating lens array.

8. The lighting apparatus according to claim 1, wherein the spot dispersing lens includes a first dispersing lens and a second dispersing lens which are stacked, the first dispersing lens being located on a side close to the light outlet;

9. A lighting device as recited in claim 8, wherein said first dispersing structure is a columnar concave lens array arranged in parallel and said second dispersing structure is a grating lens array.

10. A lighting device as recited in claim 9, wherein a projection of the second scattering structure into the direction of the first scattering structure intersects the first scattering structure at 90 °.