CN217385872U

CN217385872U - Lens, lens assembly and lighting device thereof

Info

Publication number: CN217385872U
Application number: CN202221208357.5U
Authority: CN
Inventors: 岑亮; 陈安; 梁家辉
Original assignee: Shenzhen Langheng Lighting Technology Co ltd
Current assignee: Shenzhen Langheng Lighting Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-06
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a lens, a lens component and a lighting device thereof, which comprises a main lens part and an auxiliary lens part; the main lens part and the auxiliary lens part are in a solid transparent state, the auxiliary lens part is connected with the main lens part, and the auxiliary lens part is positioned at the bottom of the main lens part; the auxiliary lens part extends relative to the main lens part in a direction away from the main lens part; grooves are formed in the bottoms of the main lens part and the auxiliary lens part. The utility model discloses a lens are provided with main lens portion and auxiliary lens portion, and light source spare all possess complete space in main lens portion and auxiliary lens portion to guaranteed the light-emitting diameter of main lens portion and auxiliary lens portion, improved main lens portion and auxiliary lens portion spotlight performance, feasible the utility model discloses the spotlight performance of lens is good.

Description

Lens, lens assembly and lighting device thereof

Technical Field

The utility model relates to a lighting apparatus technical field especially relates to a lens, lens subassembly and lighting device thereof.

Background

The lighting device is a common device which is used for lighting by people daily. The use of the lighting device can greatly facilitate the daily indoor or outdoor use of people. The performance requirements for the lighting device vary from user to user. The light-gathering and range of the lighting device are the properties of interest to the user.

The lens that lighting device used on the existing market is formed with a plurality of lens cavities side by side in it, and the lens cavity is in same horizontal plane, and arranging of LED lamp pearl all is on same base plate, and every LED lamp pearl all puts on same plane. When a plurality of LED lamp beads are integrated into each lens cavity of the same lens, the light emitting surfaces of the LED lamp beads are positioned on the same plane, and the LED lamp beads are mutually independent or partially intersected between the lens cavities. In this kind of optical scheme, the lens cavity that every LED lamp pearl corresponds divides the space relatively limited, and the diameter of every lens cavity is all smaller, and the space is not enough, and light concentration performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lens, lens subassembly and lighting device thereof, light concentration performance is good.

The utility model discloses a lens, which comprises a main lens part and an auxiliary lens part; the main lens part and the auxiliary lens part are in a solid transparent state, the auxiliary lens part is connected with the main lens part, and the auxiliary lens part is positioned at the bottom of the main lens part; the auxiliary lens part extends relative to the main lens part in a direction away from the main lens part; the bottoms of the main lens part and the auxiliary lens part are provided with grooves.

Optionally, the bottom of the primary lens portion is at the same level as the top of the secondary lens portion.

Optionally, the main lens part is provided with a side connecting part extending towards the auxiliary lens part, the auxiliary lens part is connected with the side connecting part, and the side connecting part inclines outwards by 1-2 degrees.

Optionally, there are at least two secondary lens portions.

Optionally, the diameter of the lens is 40mm, the height of the main lens part is 16mm, the diameter of the inner hole of the main lens part is 10mm, and the diameter of the light emergent cylinder of the auxiliary lens part is 6-15 mm.

Optionally, the diameter of the light-emitting cylinder of the secondary lens part is 9-10 mm.

The utility model also discloses a lens component, which comprises a circuit substrate and the lens; the circuit substrate is provided with a main light source part and an auxiliary light source part, the main light source part is inserted into the groove of the main lens part, the auxiliary light source part is inserted into the groove of the auxiliary lens part, and the light emitting plane of the auxiliary light source part is lower than that of the main light source part.

Optionally, there are at least two secondary light source elements and secondary lens portions, and the light emitting planes between the secondary light source elements are not in the same plane.

Optionally, a raised mounting portion is provided on the circuit substrate, and the main light source element is mounted on the mounting portion such that the light emitting plane of the sub light source element is lower than the light emitting plane of the main light source element.

The utility model also discloses a lighting device, include the lens subassembly as above.

The utility model discloses a lens are provided with main lens portion and vice lens portion, and the bottom of main lens portion and vice lens portion is all seted up flutedly, and the recess supplies light source spare to insert, and light source spare all possesses complete space in main lens portion and vice lens portion to guaranteed the light-emitting diameter of main lens portion and vice lens portion, improved main lens portion and vice lens portion spotlight ability, feasible the utility model discloses the spotlight ability of lens is good.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty. In the drawings:

fig. 1 is a schematic view of a lighting device according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a lighting device according to an embodiment of the present invention;

FIG. 3 is a diagram of the light spot effect of the main light source device when the diameter of the auxiliary lens portion is 6MM according to the embodiment of the present invention;

FIG. 4 is a diagram of the light spot effect of the main light source device when the diameter of the auxiliary lens portion is 10MM according to the embodiment of the present invention;

FIG. 5 is a diagram of the light spot effect of the main light source device when the diameter of the auxiliary lens portion is 15MM according to the embodiment of the present invention;

FIG. 6 is a diagram of the flare effect of the secondary light source unit when the diameter of the secondary lens portion is 6MM according to the embodiment of the present invention;

FIG. 7 is a diagram of the flare effect of the secondary light source unit when the diameter of the secondary lens portion is 10MM according to the embodiment of the present invention;

FIG. 8 is a diagram showing the flare effect of the secondary light source unit when the diameter of the secondary lens unit of the embodiment of the present invention is 15 MM;

FIG. 9 is a graph showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the main light source when the diameter of the auxiliary lens portion is 6 MM;

FIG. 10 is a graph showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the main light source when the diameter of the auxiliary lens portion is 10 MM;

FIG. 11 is a diagram showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the main light source unit when the diameter of the auxiliary lens unit is 15 MM;

FIG. 12 is a graph showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the secondary light source device when the diameter of the secondary lens portion of the embodiment of the present invention is 6 MM;

FIG. 13 is a graph showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the secondary light source unit when the diameter of the secondary lens portion is 10MM according to the embodiment of the present invention;

fig. 14 is a graph showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the secondary light source device when the diameter of the secondary lens portion is 15MM according to the embodiment of the present invention.

Wherein, 1, a cylinder head; 11. installing a cavity; 111. a light outlet; 2. a lens; 21. a main lens section; 211. a side connection portion; 212. a recess 212; 22. a sub-lens section; 3. a circuit substrate; 31. a main light source; 32. a secondary light source element; 33. an installation part; 4. a barrel body; 5. and a battery compartment.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are intended to be representative, but that the present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

The invention will be described in detail below with reference to the drawings and alternative embodiments.

As shown in fig. 1 and 2, as an embodiment of the present invention, a lens 2 is disclosed, which can be applied to an illumination device such as an illumination flashlight, and the lens 2 includes a main lens portion 21 and a sub lens portion 22; the main lens part 21 and the auxiliary lens part 22 are in a solid transparent state, the auxiliary lens part 22 is connected with the main lens part 21, the auxiliary lens part 22 is positioned at the bottom of the main lens part 21, and the auxiliary lens part 22 is communicated with the main lens part 21; the sub-lens section 22 extends in a direction away from the main lens section 21 with respect to the main lens section 21; grooves 212 are formed at the bottom of the main lens portion 21 and the sub lens portion 22.

The utility model discloses a lens 2 is provided with main lens portion 21 and vice lens portion 22, and recess 212 has all been seted up to main lens portion 21 and vice lens portion 22's bottom, and recess 212 supplies light source spare to insert, and light source spare all possesses complete space in main lens portion 21 and vice lens portion 22 to guaranteed main lens portion 21 and vice lens portion 22's light-emitting diameter, improved main lens portion 21 and vice lens portion 22 spotlight performance, make the utility model discloses lens 2's spotlight performance is good.

Specifically, the main lens portion 21 is located at the middle position of the lens 2, and the lens portion 22 is located laterally below the main lens portion 21.

Alternatively, there are at least two sub-lens portions 2, and the light emitting planes between the sub-light source elements 32 are not on the same plane, thereby realizing the arrangement of the sub-light source elements 32 at different positions.

Alternatively, the bottom of the main lens part 21 is on the same horizontal plane as the top of the sub-lens part 2, i.e. the light exit 111 of the sub-lens part 2 is on the horizontal plane of the bottom of the main lens part 21.

Optionally, the main lens portion 21 is provided with a side connection portion 211 extending toward the sub lens portion 2, the sub lens portion 2 is connected to the side connection portion 211, and the side connection portion 211 is inclined outward by 1-2 °. The light emitted from the sub-lens portion 2 is blocked by the curved reflective surface of the main lens portion 21. In this embodiment, the side connection portions 211 are inclined outward by 1-2 ° to form an inclination angle α, and the side connection portions 211 do not block the light emitted from the sub-lens portion 2, so that the light emitted from the sub-lens portion 2 is guided out, and the area occupied by the side connection portions 211 in the main lens portion 21 is reduced. The outward inclination angle α of the side connection portion 211 is a draft angle, and the smaller the draft angle is, the better the area occupied by the side connection portion 211 in the main lens portion 21 is, without affecting the mold release. The angle of inclination α is preferably 1-2 ° in this case.

As shown in fig. 1 and fig. 2, the present invention also discloses a lens assembly, comprising a circuit substrate 3 and the lens 2 as above; the circuit substrate 3 is provided with a main light source 31 and a sub light source 32, the main light source 31 is inserted into the groove 212 of the main lens portion 21, the sub light source 32 is inserted into the groove 212 of the sub lens portion 22, and the light emitting plane of the sub light source 32 is lower than the light emitting plane of the main light source 31.

The utility model discloses a lens subassembly, main light source 31 inserts in main lens portion 21, auxiliary light source 32 inserts in auxiliary lens portion 2, thereby make the luminous plane of auxiliary light source 32 not on the coplanar with the luminous plane of main light source 31, main light source 31 occupies the whole spaces of main lens portion 21, and auxiliary light source 32 also has complete space, thereby the light-emitting diameter of main lens portion 21 has been guaranteed, make main light source 31 have sufficient spotlight performance. And secondary light source 32 is also because there is relatively complete space, so secondary light source 32's spotlight performance and facula are also better, finally make the utility model discloses a spotlight performance is good.

Specifically, the main light source 31 and the sub light source 32 are LED lamp beads. Specifically, there are at least two sub-light source elements 32 and sub-lens portions 2, and the light emitting planes between the sub-light source elements 32 are not on the same plane, thereby realizing the arrangement of the sub-light source elements 32 at different positions.

Optionally, the mounting height of the sub-light source element 32 is lower than that of the main light source element 31, so that the light emitting plane of the sub-light source element 32 is lower than that of the main light source element 31. In this embodiment, the mounting height of the secondary light source 32 is lower than that of the primary light source 31, and the secondary lens portion 2 extending toward the circuit board 3 with respect to the primary lens portion 21 is used to ensure that the secondary light source 32 and the primary light source 31 have a complete and sufficient space.

Specifically, the circuit substrate 3 is provided with a raised mounting portion 33, and the main light source 31 is mounted on the mounting portion 33, so that the purpose that the mounting height of the secondary light source 32 is lower than that of the main light source 31 is achieved, and the secondary light source 32 and the main light source 31 are conveniently inserted into the secondary lens portion 2 and the main lens portion 21 respectively.

Specifically, the larger the light emitting diameter of the sub-lens portion 2 disposed at the bottom of the main lens portion 21 is, the better the light condensing performance of the sub-lens portion 2 can be made, i.e., the smaller the light condensing angle can be made; however, the larger the diameter of the light exit cylinder of the sub-lens portion 2 is, the more the curved surface of the main lens portion 21 is occupied, and the lower the light exit efficiency of the main lens portion 21 is.

Optionally, the diameter of the lens 2 is 40mm, the height of the main lens part 21 is 16mm, the diameter of the inner hole of the main lens part 21 is 10mm, and the diameter of the light-emitting cylinder of the auxiliary lens part 2 is 6-15 mm. The main light source element 31 is lumineus SFT70 white light, and the sub-light source element 32 is lumineus SFT20 green light. The optical performance parameters of the primary light source element 31 and the secondary light source element 32 are compared as follows:

as can be seen from the above table, when the diameter D of the light-emitting cylinder of the secondary lens portion 2 is continuously increased, the light-gathering angle of the main lens portion 21 is almost unchanged, the light transmittance is gradually reduced from 90% to 73.8%, the luminous flux is also gradually reduced from 3000LM to 2460LM, the range is gradually reduced from 730 m to 597 m; the light transmittance of the sub-lens portion 2 is hardly changed, the light flux is not changed, the condensing angle is gradually reduced from 26 degrees to 11 degrees, the range is gradually increased from 85 meters to 186 meters. Accordingly, the most suitable diameter D of the light-emitting cylinder of the secondary lens portion 2 can be selected as a design choice according to different design task requirements.

Specifically, the diameter of the light-emitting cylinder of the secondary lens portion 2 is 9-10mm, and it can be known from the data in table one that the light transmittance of the primary light source 31 can reach more than 85%, the light spot range of the primary light source 31 can reach more than 650 m, and the light-gathering performance of the secondary light source 32 is good, so that the secondary light source is suitable for the optical design of the lighting device used in a hunting scene, such that the primary light source 31 has a longer range to meet the requirement of hunting, and the light spot of the secondary light source 32 is round and light-gathering, such that the hunting can be locked and not be disturbed when approaching the hunting. Specifically, the main light source element 31 emits white light, and the sub light source element 32 emits green light.

Alternatively, the secondary lens part 2 has a light exit cylinder diameter of 15mm, and the secondary light source element 32 has a long range.

Specifically, fig. 3 to 5 are diagrams of flare effects of the main light source 31 when the sub-lens portion 2 has a diameter of 6MM, 10MM, and 15MM, respectively. Fig. 6 to 8 are diagrams of flare effects of the sub-light source 32 when the sub-lens portion 2 has a diameter of 6MM, 10MM, and 15MM, respectively.

Specifically, fig. 9 to 11 are graphs showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the main light source 31 when the sub-lens portion 2 has a diameter of 6MM, 10MM, and 15MM, respectively. Fig. 12 to 14 are graphs showing the relationship between the light angle (abscissa) and the light intensity (ordinate) of the sub-light source 32 when the sub-lens 2 has a diameter of 6MM, 10MM, and 15MM, respectively.

As shown in fig. 1 and 2, the present invention also discloses a lighting device comprising the lens assembly as described above. Specifically, the lighting device further comprises a barrel head 1, wherein a mounting cavity 11 with a light outlet 111 is formed in the barrel head 1; the circuit substrate 3 is installed at the bottom of the installation cavity 11, and the lens 2 is installed in the installation cavity 11 and located between the light outlet 111 and the circuit substrate 3. Specifically, the sub-lens portion 2 extends toward the circuit board 3 with respect to the main lens portion 21.

The utility model discloses a lighting device, lens 2 is provided with main lens portion 21 and auxiliary lens portion 2, auxiliary lens portion 2 extends towards 3 directions of circuit substrate for main lens portion 21, main light source 31 inserts in main lens portion 21, auxiliary light source 32 inserts in auxiliary lens portion 2, thereby make the luminous plane of auxiliary light source 32 and main light source 31's luminous plane not on the coplanar, main light source 31 occupies the whole spaces of main lens portion 21, and auxiliary light source 32 also possesses complete space, thereby main lens portion 21's light-emitting diameter has been guaranteed, make main light source 31 have sufficient spotlight performance. And vice light source 32 is also because there is relatively complete space, so the spotlight performance and the facula of vice light source 32 are also better, finally make the utility model discloses a spotlight performance is good.

Specifically, the end of the main lens portion 21 is abutted with the light outlet 111 to emit light, and a convex edge is arranged around the edge of the end of the main lens portion 21 and is clamped in a clamping groove on the inner wall surface of the light outlet 111. And a sealing ring is arranged in the clamping groove and is tightly pressed on the upper surface of the convex edge, so that the sealing and waterproof effects are achieved.

Specifically, the lighting device further comprises a barrel body 4, and the barrel body 4 is connected with the barrel head 1. The barrel 4 is provided with a battery compartment 5 for mounting a battery. The battery supplies power to the lighting device.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific alternative embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A lens comprising a primary lens portion and a secondary lens portion; the main lens part and the auxiliary lens part are in a solid transparent state, the auxiliary lens part is connected with the main lens part, and the auxiliary lens part is positioned at the bottom of the main lens part; the auxiliary lens part extends relative to the main lens part in a direction away from the main lens part; grooves are formed in the bottoms of the main lens part and the auxiliary lens part.

2. The lens of claim 1, wherein the bottom of the primary lens portion is at the same level as the top of the secondary lens portion.

3. The lens of claim 2, wherein the main lens portion is provided with a side connecting portion extending in a direction toward the sub lens portion, the sub lens portion being connected to the side connecting portion, and the side connecting portion being inclined outward by 1-2 °.

4. The lens of any of claims 1 to 3, wherein there are at least two of the secondary lens portions.

5. The lens of claim 1, wherein the diameter of the lens is 40mm, the height of the main lens portion is 16mm, the diameter of the inner hole of the main lens portion is 10mm, and the diameter of the light exit cylinder of the sub lens portion is 6-15 mm.

6. The lens of claim 1, wherein the secondary lens portion has an exit cylinder diameter of 9-10 mm.

7. A lens assembly comprising a circuit substrate and a lens as claimed in any one of claims 1 to 6; the circuit substrate is provided with a main light source part and an auxiliary light source part, the main light source part is inserted into the groove of the main lens part, the auxiliary light source part is inserted into the groove of the auxiliary lens part, and the light emitting plane of the auxiliary light source part is lower than that of the main light source part.

8. The lens assembly of claim 7 wherein at least two of said secondary light source elements and said secondary lens portions, the light emitting planes between said secondary light source elements being not coplanar.

9. The lens assembly of claim 7, wherein said circuit substrate is provided with a raised mounting portion, said primary light source element being mounted on said mounting portion such that the plane of light emission of said secondary light source element is lower than the plane of light emission of said primary light source element.

10. A lighting device comprising a lens assembly according to any one of claims 7 to 9.