CN210800802U

CN210800802U - Lens, lens group and lamp

Info

Publication number: CN210800802U
Application number: CN201921292217.9U
Authority: CN
Inventors: 何祖平; 薛元芳; 陈东
Original assignee: Self Electronics Co Ltd
Current assignee: Ningbo Self Electronics Co Ltd; Self Electronics Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-19
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a lens, including light source setting department, light inlet surface and play plain noodles, the light source setting department is equipped with the primary optical axis that passes light inlet surface and play plain noodles, has mutually perpendicular and with crossing first beam adjustment axle and the second beam adjustment axle of primary optical axis on the plane perpendicular to the primary optical axis, the play plain noodles is first spotlight curved surface along first beam adjustment axle direction in one side of primary optical axis, and the other side is the diffusion curved surface at least partially; the light emitting surface is a second light condensing curved surface along the second light adjusting axis direction; the utility model discloses a grading of lens distributes the light of light source on transverse section for more light shines to shine the distal end and at the near-end diffusion, adopts convex lens to assemble lambertian distribution light on vertical, realizes the homogeneity and the improvement light efficiency of illumination on the face through two ascending grading.

Description

Lens, lens group and lamp

Technical Field

The utility model relates to the field of lighting technology, especially a lens, battery of lens and lamps and lanterns.

Background

Compared with the traditional lighting lamp, the LED lamp has the advantages of small volume, low energy consumption and high lighting effect, so that the LED lamp can be rapidly popularized and applied. Meanwhile, people are continuously pursuing better illumination effect, so that the LED lamp is expected to meet various illumination requirements. Particularly in the case where large-area, long-distance irradiation is required, it is desirable to make the illuminance of the irradiated area as uniform as possible. Because the light-emitting effect of the LED chip cannot meet the illumination requirement, the secondary optical design needs to be carried out through the cooperation of the lens to meet the specific light distribution requirement. According to the rule of light irradiation, compared with the irradiated area with a short light irradiation distance, the farther the light irradiation distance is, the more scattering is, the larger the irradiation range is, so that the illuminance of the area with the farther the irradiation distance is, and the problem of poor irradiation uniformity is caused.

In order to solve the problems, the lens with the light condensation effect is designed to realize uniform illumination, but the improvement of the light condensation effect is only suitable for illumination with a small area, and if the uniform illumination with a large area is needed, a plurality of LEDs are needed to be matched to realize the uniform illumination with the large area, so that the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a lens, a lens set and a lamp, so as to solve the above technical problems.

A lens comprises a light source arrangement position, a light inlet surface and a light outlet surface, wherein a main optical axis penetrating through the light inlet surface and the light outlet surface is arranged at the light source arrangement position, a first light adjusting axis and a second light adjusting axis which are perpendicular to each other and are intersected with the main optical axis are arranged on a plane perpendicular to the main optical axis, the light outlet surface is a first light condensing curved surface on one side of the main optical axis along the direction of the first light adjusting axis, and at least part of the other side of the light outlet surface is a diffusion curved surface; the light emitting surface is a second light condensing curved surface along the second light dimming axis direction.

Preferably, the first light-gathering curved surface and the diffusion curved surface are connected through a third light-gathering curved surface.

Preferably, the curvature of the third condensing curved surface gradually decreases from the first condensing structure toward the diffusing structure.

Preferably, the first condensing curved surface, the third condensing curved surface and the diffusion curved surface are in smooth transition.

Preferably, the light inlet surface is an arc surface which is concave towards the light outlet surface along the main optical axis, and the light source is arranged outside the light inlet surface.

A lens group comprises a plurality of lenses, wherein the lenses are arranged at intervals along a second dimming axis.

Preferably, the lens fixing device further comprises a mounting plate for fixing the lens.

Preferably, the mounting plate is provided with a plurality of mounting holes, and each mounting hole is correspondingly provided with a lens and connected with the light inlet surface.

Preferably, the mounting plate and the lens are manufactured in one piece.

A light fixture, comprising:

a lamp holder;

the circuit board is arranged on the lamp holder;

a light source disposed on the circuit board;

the lens adopts the above lens, and the light source is arranged on the light source arrangement position and the central axis coincides with the main optical axis.

Preferably, lighting fixture and circuit board are the bar that extends along the second axis of adjusting luminance direction, the light source is equipped with a plurality ofly and arranges along the second axis of adjusting luminance interval, and is corresponding, lens are equipped with a plurality ofly and set up respectively on the light source that corresponds.

Preferably, the circuit board is provided with two, and the width direction mutual symmetry and slope setting, the light source sets up at the circuit board lateral surface.

The technical effects of the utility model:

the utility model discloses a lens, battery of lens and lamps and lanterns, the light of light distribution light source on horizontal (first axle direction of adjusting luminance) cross-section through lens for more light shines to shine the distal end and at the near-end diffusion, adopts convex lens to assemble lambertian distribution light on vertical (the axle direction is adjusted luminance to the second), realizes the homogeneity and the improvement light efficiency of illumination on the face through two ascending grading realization in side.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a lens group according to example 1.

Fig. 2 is a schematic sectional view of a lens group of example 1 in a first dimming direction.

Fig. 3 is a schematic diagram of light distribution of the lens group of embodiment 1 in a first dimming direction.

Fig. 4 is a schematic sectional view of the lens group of example 1 in a second dimming direction.

Fig. 5 is a schematic structural diagram of the lamp according to embodiment 1.

Fig. 6 is an exploded schematic view of the lamp of embodiment 1.

Fig. 7 is a schematic cross-sectional view of the lamp of embodiment 1.

Fig. 8 is a schematic structural diagram of the lamp according to embodiment 2.

Fig. 9 is an exploded schematic view of the lamp of embodiment 2.

Fig. 10 is a schematic cross-sectional view of the lamp of embodiment 2.

Detailed Description

The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to 7, the lens 1000 of the present embodiment includes a light source installation portion 100, a light inlet surface 200, and a light outlet surface 300, wherein the light source installation portion 100 is provided with a main optical axis 101 passing through the light inlet surface 200 and the light outlet surface 300, a first light modulation axis 102 and a second light modulation axis 103 are provided on a plane perpendicular to the main optical axis 101 and are perpendicular to each other and intersect with the main optical axis, the light outlet surface 300 is a first light condensation curved surface 201 on one side of the main optical axis 101 along the direction of the first light modulation axis 102, and at least a part of the other side is a diffusion curved surface 202; the light emitting surface 300 is a second light condensing curved surface along the second dimming axis 103.

In the present embodiment, in order to increase the illumination range and the illumination uniformity, the main optical axis 101 of the light source installation 100 is obliquely arranged relative to the illumination surface 400, at this time, the first dimming axis 102 is obliquely arranged relative to the illumination surface 400, the second dimming axis 103 is horizontally arranged relative to the illumination surface 400, the light emitting surface 300 is used for light distribution, a first condensing curved surface 201 is arranged on one side (a side far away from the illumination surface 400) of the main optical axis 101 along the direction of the first dimming axis 102, and at least part of the other side (a side close to the illumination surface 400) is a diffusion curved surface 202, the first condensing curved surface 201 can condense the light emitted by the light source and then project the condensed light to the far end of the illumination surface 400, and a part of the side close to the illumination surface 400 can also be all diffusion curved surfaces, the diffusion curved surface can guide the light emitted from the light source to the near end of the irradiation surface 400, so that the light near the irradiation surface is partially diffused, and the uniform illumination with a large irradiation range is obtained.

The light emitting surface 300 is a second light condensing curved surface along the second dimming axis 103, and achieves a light condensing effect in a direction parallel to the illumination surface 400, so that the light efficiency is improved, and particularly when a plurality of light sources are continuously arranged in the direction, higher light efficiency and higher illumination uniformity can be maintained in the direction after light condensation.

The curvature of the light converging curved surface is positive and the curvature of the diffusing curved surface is positive, and in order to make the light irradiation change smoothly, in the present embodiment, the first light converging curved surface 201 and the diffusing curved surface 202 are connected by the third light converging curved surface 203. And the curvature of the third light-condensing curved surface 203 becomes gradually smaller from the first light-condensing structure toward the diffusing structure. It is further preferable that the first condensing curved surface 201, the third condensing curved surface 203, and the diffusing curved surface 202 are smoothly transited.

In order to avoid the light-emitting delamination, the light-inlet surface 200 is an arc surface that is concave towards the light-outlet surface 300 along the main optical axis 101, and the light source arrangement position 100 is located outside the light-inlet surface 200. The light inlet surface 200 and the light outlet surface 300 are arranged in a continuous curved surface structure, so that light spots on the irradiation surface 400 are not layered.

The lens group of the present embodiment includes a plurality of lenses 1000, and the lenses 1000 are arranged at intervals along the second dimming axis 103. Thereby achieving continuous and efficient illumination in the direction of the second dimming axis 103, while a single row of light sources achieves large-angle uniform illumination on the first dimming axis 102. For ease of installation and manufacture, the lens assembly further comprises a mounting plate 2000 for securing the lens 1000. Meanwhile, in order to facilitate the installation of the light source, a plurality of installation holes 2001 are provided on the installation plate 2000, the installation holes 2001 may be used as light source installation positions 100, and one lens 1000 is correspondingly arranged in each installation hole 2001 and connected with the light inlet surface 200. The mounting plate 2000 and the lens 1000 are fixedly connected in many ways, and glue bonding, screw locking and other ways can be realized, so that the structure is simplified and manufactured conveniently, in the embodiment, the mounting plate 2000 and the lens 1000 are made of the same material and are manufactured in an integrated manner.

The lamp of this embodiment includes a lamp holder 3000, a circuit board 4000, a light source 5000, a mounting plate 2000 with a lens 1000, a lamp housing 6000, and an end cap assembly 7000.

The lamp holder 3000 and the circuit board 4000 are strips extending along the second dimming axis 103, the light sources 5000 are multiple and are arranged at intervals along the second dimming axis 103, correspondingly, the lenses 1000 on the mounting plate 2000 are multiple and are respectively arranged on the corresponding light sources 5000, and the circuit board 4000 is arranged on the lamp holder 3000; the light source 5000 is disposed on the circuit board 4000; the light source 5000 is disposed on the light source arrangement 100 with the central axis coinciding with the main optical axis 101.

Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the field of household and commercial illumination because of high light-emitting efficiency and good light-condensing performance, and the light source 5000 adopts an LED chip.

In this embodiment, the end cap assembly 7000 includes an external lead 7001, a fixing plate 7002, an external cover 7003, an internal cover 7004, and a sealing plug 7005. End cap assembly 7000 may be of conventional art and is not the focus of the present application and will not be described in detail herein.

Lamp bracket 3000 includes alloy support 3001 and fixing base 3002, alloy support 3001 is bar structure, the cross section is the L type, the surface is mutually perpendicular's minor face 3005 and long limit 3006, the surface is often used for the installation and the location, fixing base 3002 wears to establish the inboard at alloy support 3001, for convenient manufacturing and improvement water-proof effects, fixing base 3002 makes and connects formation circumference sealed installation cavity 3003 with lamp shade 6000 integrated into one piece, be equipped with mounting groove 3004 in the installation cavity 3003, after mounting panel 2000 is fixed to circuit board 4000, insert mounting groove 3004 after-fixing together, the relative minor face 3005 slope setting in plane that the both sides of mounting groove 3004 were connected and are formed, thereby make circuit board 4000 slope setting, cooperation lens 1000's grading, realize large tracts of land uniform lighting, this lamps and lanterns are applicable to display, illumination such as showcase.

Example 2

As shown in fig. 8 to 10, in order to realize a wider range of illumination, two rows of light sources 5000 are provided in the present embodiment, in order to provide these light sources, two circuit boards 4000 are provided, the width directions are symmetrical to each other and are arranged obliquely, and the structure of the lens and the components of the lamp are the same as those in embodiment 1.

In this embodiment, alloy holder 3001's outer bottom surface is the horizontally installation face, the inboard is equipped with the fixed slot, the fixed slot is used for installing fixing base 3002, be equipped with two symmetrical arrangement's mounting groove 3004 in fixing base 3002, in the cross section, one side of two mounting grooves 3004 is drawn close, thereby the plane symmetry and the slope setting that form are connected to the both sides that make mounting groove 3004, thereby make the circuit board 4000 that sets up in mounting groove 3004 mutual symmetry and the slope setting on the width direction, the lens 1000 that two circuit board 4000 correspond the installation, one side that is equipped with diffusion curved surface 202 draws close each other, thereby will shine the light diffusion of middle zone (near-end), the light of both sides is assembled, improve the homogeneity that wholly shines, make things convenient for and improve water-proof effects, fixing base 3002 makes with two lamp shade 6000 integrated into one piece and connects and forms circumference.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. A lens comprises a light source arrangement part (100), a light inlet surface (200) and a light outlet surface (300), wherein the light source arrangement part (100) is provided with a main optical axis (101) penetrating through the light inlet surface (200) and the light outlet surface (300), and a first light adjusting axis (102) and a second light adjusting axis (103) which are perpendicular to each other and intersect with the main optical axis are arranged on a plane perpendicular to the main optical axis (101), and the lens is characterized in that the light outlet surface (300) is a first light gathering curved surface (201) on one side of the main optical axis (101) along the direction of the first light adjusting axis (102), and at least part of the other side of the light outlet surface is a diffusion curved surface (202); the light emitting surface (300) is a second light condensing curved surface along the direction of the second dimming axis (103).

2. The lens according to claim 1, wherein the first light-converging curved surface (201) and the diffusing curved surface (202) are connected by a third light-converging curved surface (203).

3. The lens according to claim 2, wherein the curvature of the third light-concentrating curved surface (203) is gradually smaller from the first light-concentrating structure towards the diffusing structure.

4. The lens according to claim 2, characterized in that the first light-gathering curved surface (201), the third light-gathering curved surface (203) and the diffusing curved surface (202) are in smooth transition.

5. The lens of any of claims 1 to 4, wherein the light inlet surface (200) is an arc surface concave towards the light outlet surface (300) along the main optical axis (101), and the light source arrangement (100) is located outside the light inlet surface (200).

6. A lens stack, characterized by comprising a plurality of lenses (1000) according to claims 1-5, said lenses (1000) being arranged at intervals along the second dimming axis (103).

7. A lens stack according to claim 6, further comprising a mounting plate (2000) for fixing the lens (1000).

8. The lens group of claim 7, wherein the mounting plate (2000) is provided with a plurality of mounting holes (2001), and each mounting hole (2001) is provided with a corresponding lens (1000) and connected with the light inlet surface (200).

9. A lens stack according to claim 7 or 8, characterised in that the mounting plate (2000) and the lens (1000) are manufactured in one piece.

10. A light fixture, comprising:

a lamp holder (3000);

the circuit board (4000) is arranged on the lamp holder (3000);

a light source (5000) disposed on the circuit board (4000);

the lens (1000) as claimed in any one of claims 1 to 5, wherein the light source (5000) is disposed on the light source arrangement (100) and the central axis coincides with the main optical axis (101).

11. A lamp as claimed in claim 10, characterized in that said lamp holder (3000) and circuit board (4000) are bar-shaped and extend along the direction of the second dimming axis (103), said light source (5000) is provided in plurality and spaced along the second dimming axis (103), correspondingly, said lens (1000) is provided in plurality and arranged on the corresponding light source (5000), respectively.

12. A lamp as claimed in claim 10 or 11, characterized in that there are two circuit boards (4000), the width directions of which are symmetrical and inclined to each other, and the light sources (5000) are arranged on the outer side of the circuit boards (4000).