CN111336438A

CN111336438A - Lamp fitting

Info

Publication number: CN111336438A
Application number: CN202010340399.3A
Authority: CN
Inventors: 皮远军; 康伟; 钟磊
Original assignee: Zopoise Technology Zhuzhou Co Ltd
Current assignee: Zopoise Technology Zhuzhou Co Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2020-06-26

Abstract

The application relates to the field of manufacturing of lighting equipment, and provides a lamp which comprises a rear shell, a light source module and a power line, wherein the light source module is installed on the rear shell, and the power line is connected with the rear shell and is electrically connected with the light source module; the light source module includes: the LED lamp comprises a light source substrate, a lens assembly and a plurality of lamp beads arranged on the light source substrate; the lamp beads are arranged around the same center on the light source substrate to form at least two lamp rings, namely a first lamp ring and a second lamp ring; the lens assembly includes: at least one ring lens and a plurality of single lenses; the annular lens cover is arranged on the first lamp ring; and a plurality of single lenses are arranged on each lamp bead of the second lamp ring in a one-to-one correspondence manner. This application adopts annular lens and the lens group of single lens mutually supporting to carry out the grading, has optimized the grading curve of traditional light source module, effectively reduces the glare of lamps and lanterns, has improved illuminating effect.

Description

Lamp fitting

Technical Field

The application relates to the field of lighting equipment manufacturing, in particular to a lamp.

Background

With the development of LED lighting technology, the brightness that can be realized by the lamp is also higher and higher. With the increase in luminance, the light source module is likely to generate a spot or a diaphragm having a local excessively high luminance, which tends to increase the glare index, but if the light intensity of the light source is reduced to control the glare, the luminance of the lamp is insufficient. Therefore, high brightness and low glare are often conflicting requirements.

In the prior art, in order to reduce the glare index and improve the user experience, a lens may be disposed to distribute light so that the light distribution is more uniform. Among them, a common lens is an annular lens and a plurality of annular lenses are coaxially arranged. However, in the light source module, since the number of light sources in the central area is reduced or the smaller annular lenses cannot be placed, all the outer rings cannot be continuously overlapped, an annular aperture will be formed, and as the number of the annular lenses increases, the number of the apertures will also increase, which affects the illumination effect.

Disclosure of Invention

In order to solve the above problems or at least partially solve the above technical problems, in one embodiment of the present application, a light fixture is provided, which includes a rear housing, a light source module mounted on the rear housing, and a power line connected to the light source module through the rear housing;

the light source module includes:

the LED lamp comprises a light source substrate, a lens assembly and a plurality of lamp beads arranged on the light source substrate;

the lamp beads are arranged around the same center on the light source substrate to form at least two lamp rings, namely a first lamp ring and a second lamp ring;

the lens assembly includes: at least one ring lens and a plurality of single lenses;

the annular lens cover is arranged on the first lamp ring;

and a plurality of single lenses are arranged on each lamp bead of the second lamp ring in a one-to-one correspondence manner.

The light source module of lamps and lanterns in the embodiment of this application adopts annular lens and the lens group of single lens of mutually supporting to carry out the grading, and different lenses can refract light and make light distribution even to improve illuminating effect, promoted user's use and experienced. Moreover, the annular lens is matched with the single lens, so that the appearance and the light distribution curve of the traditional light source module can be optimized, and the glare is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be clear that the drawings in the following description are only intended to illustrate some embodiments of the present application, and that for a person skilled in the art, it is possible to derive from these drawings, without inventive effort, technical features, connections or even method steps not mentioned in the other drawings.

FIG. 1 is a schematic illustration of a prior art lens assembly;

fig. 2 is a perspective exploded view of the front face of a first embodiment of a lamp in the present application;

fig. 3 is a perspective exploded view of the back of a first embodiment of a lamp in the present application;

fig. 4 is a schematic cross-sectional view of a light source module of a lamp according to a first embodiment of the present application;

FIG. 5 is a schematic perspective view of a lens assembly of a light fixture according to the first and second embodiments of the present application;

FIG. 6 is a schematic top view of a lens assembly of the light fixture of the first and second embodiments herein;

FIG. 7 is a schematic top view of a lens assembly of a second embodiment of a luminaire herein;

FIG. 8 is a schematic top view of a lens assembly of a second embodiment of a luminaire herein;

FIG. 9 is a schematic top view of a lens assembly of a second embodiment of a luminaire herein;

FIG. 10 is a schematic top view of a lens assembly of a second embodiment of a luminaire herein;

FIG. 11 is a schematic top view of a lens assembly of a second embodiment of a luminaire herein;

FIG. 12 is a partially enlarged schematic view of an annular lens of a lamp according to a third embodiment of the present application;

FIG. 13 is a light distribution curve of a light source module of a prior art lamp including only a ring lens;

fig. 14 is a light distribution curve of a lamp including an annular lens and a single lens in the embodiment of the present application;

fig. 15 is a schematic range diagram of light distribution of a lamp in the embodiment of the present application.

Description of the reference numerals

1. A light source module; 2. a light source substrate; 3. a lens assembly; 31. an annular lens; 311. a dome portion; 312. a sidewall portion; 32. a single lens; 4. a lamp ring; 41. a first lamp ring; 42. a second lamp ring; 43. a third lamp ring; 44. a fourth lamp ring; 45. a lamp bead; 5. a gasket; 6. a rear housing; 7. a power line; 8. and a fixing mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application shall fall within the scope of protection of the present application.

Implementation mode one

The inventor of the present application has found that, in the prior art, the light source module of the lamp is usually designed to perform light distribution by using the lens assembly 3 composed of only a plurality of annular lenses 31. Specifically, referring to fig. 1, the lens assembly 3 includes a plurality of coaxially disposed annular lenses 31, where each annular lens 31 is formed by connecting an elongated lens end to end, and light spots of the elongated lens before the end to end connection are elongated. A plurality of annular light spots are overlapped to form complete light distribution, so that the illumination effect is improved, and the light distribution curve is shown in fig. 13. When the number of light sources is reduced or the ring lenses 31 with a smaller diameter cannot be placed in the central area of the light source assembly 1, all the outer ring lenses 31 cannot be continuously overlapped to form light distribution, and an annular diaphragm will be formed on the field. The technical scheme has little defect in the application scene of small space. However, when the industrial lamps such as mining lamps and high bay lamps are applied to industrial illumination places such as large plants and stadiums, the installation height is generally 6-15m or even higher, and the superposition of the diaphragms brings about uneven light distribution and glare problems, so that the illumination effect is influenced. Further, the smaller the number of ring lenses, the more closely the stack is made, and the larger the influence is.

In view of this, a first embodiment of the present application discloses a lamp, which is shown in fig. 2 and fig. 3, and includes a rear housing 6, a light source module 1 mounted on the rear housing 6, and a power cord 7 connected to the light source module 1 through the rear housing 6; the light source module includes: the light source comprises a light source substrate 2, a lens component 3 and a plurality of lamp beads 45 arranged on the light source substrate 2; the lamp beads 45 are arranged on the light source substrate 2 around the same center to form at least two lamp rings 4, namely a first lamp ring 41 and a second lamp ring 42; the lens unit 3 includes: at least one ring lens 31 and a plurality of single lenses 32; an annular lens 31 is covered on the first lamp ring 41; a plurality of single lenses 32 are mounted on each bead of the second lamp ring 42 in a one-to-one correspondence.

The light source substrate 2 is usually made of a metal material such as an aluminum plate or other non-metal materials with good heat dissipation and good light reflection performance. The rear case 6 disposed behind the light source substrate 2 may have a heat dissipation structure to provide sufficient heat dissipation to the light source substrate 2. A fixing mechanism 8 may be further disposed on the rear housing 6 to fix the lamp.

In the light source module 1, the lamp ring 4 and the light source substrate 2 may be connected by a pad (not shown). Annular lens 31 is the rectangular shape lens of end to end cyclization, and the facula of rectangular shape lens before carrying out end to end connection is rectangular shape, and there is the design control of grading only perpendicular lens direction, can not manage the direction of accuse light along the length direction of rectangular shape lens, and connects the optimization of ring design for the facula of being convenient for. The single lens 32 is a refractive lens or a TIR lens, which can achieve a better light control effect, thereby reducing the generation of an aperture and reducing the glare phenomenon.

Compared with the prior art, the light distribution of the light emitted by the lamp beads 45 is realized through the mutual matching between the annular lens 31 and the single lens 32 in the embodiment, so that the scattering degree of the light emitted by the lamp beads 45 is reduced, the formation of an aperture is further reduced, and the influence of glare on actual use can be reduced.

Specifically, since the annular lens 31 is correspondingly covered on the first lamp ring 41, when the lamp bead 45 on the first lamp ring 41 normally emits light, the emitted light is distributed through the annular lens 31 to form an annular light spot. In addition, as shown in fig. 13 and 14, each bead 45 of the second bead 42 can cooperate with the light adjusted by the annular lens 31 under the light distribution of the single lens 32, and the light generated by the light source module 1 is reduced by the good light control capability of the single lens 32, so that the light distribution is more uniform, and the influence of glare is further reduced.

In the present embodiment, the second lamp ring 1 is described as an example of a region near the center. Referring to fig. 4, the first lamp ring 41 may be disposed coaxially with the second lamp ring 42, and a plurality of lamp beads 45 on the first lamp ring 41 may be arranged in a ring shape, and the diameter of the ring shape is identical to the diameter of the ring lens 31. In order to match with the light of the annular lens 31 for light distribution, as shown in fig. 15, the single lens 32 corresponding to each lamp bead 45 on the second lamp ring 42 is also arranged in an annular shape coaxially arranged with the annular lens 31, so that the annular light spots 62 formed by arranging a plurality of circular light spots on the light distributed by the single lens 32 are more accurately aligned, and the light can be matched with the aperture 61 formed by the annular lens 31 more closely, thereby improving the light space distribution. Since the single lens 32 has a better light path control effect than the annular lens 31, the light emitted from the first lamp ring 41 and the light emitted from the second lamp ring 42 can be more uniformly spread, and the light concentration is reduced, so that the occurrence of the glare phenomenon is more effectively reduced.

It is worth mentioning that, in this embodiment, the annular lens 31 may be disposed at a distance from the lamp bead 45, and a light guide structure (not shown) may also be disposed between the annular lens 31 and the lamp bead 45, so as to better control the light path, and the light guide structure may be integrally injection-molded with the annular lens 31. Similarly, each single lens 32 and the corresponding lamp bead 45 of the second lamp ring 42 may be spaced by an end distance, and a conduit structure may be disposed between the single lens 32 and the corresponding lamp bead 45, and the light guide structure may be integrally injection-molded with the single lens 32.

Second embodiment

A second embodiment of the present application also provides a luminaire. The second embodiment is a further improvement of the first embodiment, and the main improvement is that, in order to adjust the lighting power of the light source module 1, the number of the lamp beads 45, the arrangement of the lamp beads 45, and the cooperation between the annular lens 31 and the single lens 32 can be adjusted. Specifically, in other embodiments of the present application, referring to fig. 10, the lamp beads 45 are arranged around the same center on the light source substrate 2 to form at least four lamp rings 4, i.e., a first lamp ring 41, a second lamp ring 42, a third lamp ring 43, and a fourth lamp ring 44. The lens unit 3 includes: at least two annular lens 31 and a plurality of single lens 32, an annular lens 31 covers and establishes on third lamp ring 43, and a plurality of single lens 32 cover one-to-one and establish on each lamp pearl 45 of fourth lamp ring 44.

Since the annular lens 31 and the single lens 32 are arranged at intervals, the light refracted by the annular lens 31 is matched with the light refracted by the single lens 32, so that the phenomenon that the annular lens 31 generates an aperture is reduced. Specifically, the light emitted from the first lamp ring 41 is refracted by the annular lens 31, and then is distributed by the single lens 32 correspondingly disposed on the second lamp ring 42; the light emitted from the third rim 43 is refracted by the annular lens 31, and then distributed by the einzel lens 32 provided correspondingly to the fourth rim 44. In addition, in consideration of the fact that light can propagate through the gap between the light source substrate 2 and other components, stray light emitted from the single lamp bead 45 of the first lamp ring 41 may be distributed by the single lens disposed corresponding to the fourth lamp ring 44, or distributed by the single lens 32 disposed corresponding to the second lamp ring 42 and the single lens 32 disposed corresponding to the fourth diaphragm, so as to prevent glare.

Further, in the embodiment of the present application, the lens assembly 3 is illustrated with reference to fig. 7 and 8 according to the arrangement of the lamp ring 4. When the four lamp rings 4 are arranged outwards from the surrounding center, the sequence is as follows: a first lamp ring 41, a third lamp ring 43, a second lamp ring 42, and a fourth lamp ring 44, and the lens assembly 3 is formed in the design shown in fig. 8, that is, the single lens 32 is disposed near the central region, and the annular lens 31 is disposed near the periphery.

When the four lamp rings 4 are arranged outwards from the surrounding center, the sequence is as follows: fig. 7 shows the lens assembly 3 when the second lamp ring 42, the fourth lamp ring 44, the first lamp ring 41, and the third lamp ring 43 are formed.

Because the number of light sources in the central area is reduced or the annular lens 31 with smaller size cannot be placed, the lens assembly 3 can be designed in an arrangement mode that two continuous annular single lenses 32 or two continuous annular lenses 31 are close to the central area, as shown in detail in fig. 7 and 8, light refracted by the single lenses 32 can be distributed with light emitted by the central area lamp beads, and can also be matched with a diaphragm formed by the periphery through refraction of the annular lens 31, so that the glare effect is reduced.

In addition, because the diameters of different lamp rings 4 are different, the number of the lamp beads 45 mounted on different lamp rings 4 is different. Generally speaking, the larger the diameter of the lamp ring 4, the more the number of the lamp beads 45 that can be arranged, and the more the number of the lamp beads 45 covered by the ring lens 31, the higher the power of the light source module 1. By changing the arrangement sequence of the lamp rings 4, the lighting effect of the lighting appliance can be changed in a mode of changing the number of the lamp beads 45 covered by the annular lens 31, and the glare effect can be optimized by adjusting the number of the single lenses 32.

In order to optimize the anti-glare effect, in the present embodiment, in each of the lamp beads 45, the number ratio of the lamp beads 45 covering the annular lens 31 to the lamp beads 45 covering the single lens 32 is: 0.8:1 to 1: 1.2.

The inventor of the application finds in experiments that the anti-glare effect of the lamp can be further adjusted by adjusting the number of the lamp beads 45 arranged on the annular lens 31 and the number of the lamp beads 45 arranged under the single lens 32. When the number of the lamp beads 45 covered by the annular lens 31 is close to that of the lamp beads 45 covered by the single lens 32, the light flux refracted by the annular lens 31 is close to that refracted by the national single lens 32, so that the light ray space distribution is more uniform, and the anti-glare effect is optimized. Specifically, in each of the lamp beads 45, the optimal anti-glare effect can be achieved in a range in which the number ratio of the lamp beads 45 covering the annular lens 31 to the lamp beads 45 covering the single lens 32 is close to 1:1.

In the embodiment of the present application, four lamp rings 4 will be described as an example. Specifically, the four lamp rings 4 may be arranged in sequence from the center to the outside: a first lamp ring 41, a second lamp ring 42, a third lamp ring 43 and a fourth lamp ring 44. In this embodiment, the corresponding lens assembly 3 is shown with reference to fig. 10.

Or, the four lamp rings 4 may be arranged in sequence from the surrounding center to the outside: a second lamp ring 42, a first lamp ring 41, a fourth lamp ring 44, a third lamp ring 43, and a corresponding lens assembly 3 are shown in fig. 5 and 6.

By arranging the annular lenses 31 and the single lenses 32 at intervals along the radial direction of the lens assembly 3, the light rays refracted by the plurality of annularly arranged single lenses 32 can be matched with the aperture formed by refracting by each annular lens 32, so that the glare formed between the apertures is reduced.

In other embodiments of the present application, the four lamp rings 4 may be a first lamp ring 41, a second lamp ring 42, a fourth lamp ring 44, and a third lamp ring 43 in sequence from the surrounding center to the outside, and the corresponding lens assembly 3 is shown in fig. 9.

In addition, the four lamp rings 4 may be arranged in sequence from the surrounding center to the outside: a second lamp ring 42, a first lamp ring 41, a third lamp ring 43, a fourth lamp ring 44, and a corresponding lens assembly 3 are shown in fig. 11.

Third embodiment

The third embodiment of the present application provides a lamp, and the light source module 1 of the lamp in the third embodiment is a further improvement of the light source module 1 in the first and second embodiments, and the main improvement is that, in the third embodiment of the present application, the top of the annular lens 31 and the top of the single lens 32 are at the same distance from the light source substrate 2.

Because the distance between the top of the annular lens 31 and the light source substrate 2 is the same as the distance between the top of the single lens 32 and the light source substrate 2, the light spots refracted by the annular lens 31 and the single lens 32 can be controlled, so that the light distribution effect of the single lens 32 is further improved, and the uneven distribution of the light distribution space is prevented.

Further, in order to better achieve the anti-glare effect, in the present embodiment, referring to fig. 12, the annular lens 31 includes a dome portion 311 and a side wall portion 312 connected to the dome portion 311, the dome portion 311 has an arc shape in cross section, and the dome portion 311 is connected to the light source substrate 2 through the side wall portion 312.

Since the dome portion 311 of the annular lens 31 has an arc-shaped cross section, light passing through the dome portion 311 can be condensed (to have an effect similar to a convex lens). After the lamp bead 45 arranged right above the annular lens 31 emits light, the light directly passes through the side wall part 312 and then is refracted to gather, and then the light in the head is refracted to gather again when the light exits the dome part 311, so that the light divergence is reduced, and the light is distributed more uniformly after the light distribution of the annular lens 31.

In order to further improve the light distribution effect of the annular lens 31, in the present embodiment, the radius of curvature of the dome portion 311 is smaller than that of the single lens 32.

Among them, since the curvature radius of the dome portion 311 is smaller than that of the single lens 32, the dome portion 311 of the ring lens 31 can more effectively converge light according to the relationship between the curvature radius of the lens and the focal length of the lens (i.e., the focal length of the lens is smaller as the curvature radius is smaller), so that the light refracted by the ring lens 31 is more uniformly distributed, thereby more effectively reducing the glare effect.

More preferably, in the present embodiment, referring to fig. 12, the light source module 1 further includes a gasket 5, and the gasket 5 is correspondingly disposed between the light bead 45 in the first lamp ring 41 and the light source substrate 2. The material of the light source substrate 2 is usually a metal material such as aluminum, and the metal material is easily deformed during transportation and installation, and even the light source substrate 2 and the like are deformed due to temperature and the like. Set up gasket 5 between lamp pearl 45 and light source base plate 2, can reduce the deformation that installation lamp pearl 45 goes out light source base plate 2 effectively to ensure the distance between lamp pearl 45 and the annular lens 31 on the first lamp ring 41, and then ensure that the grading through single lens 32 carries out effective regulation to the light that lamp pearl 45 sent, reduces the production of light ring, realizes more excellent anti-dazzle effect. In addition, there may be a small gap between the lens assembly 3 and the light source substrate 2, and the light source substrate 2 and the lens assembly 3 can be sealed by providing a gasket, thereby reducing light leakage. It should be noted that, in the present embodiment, the gasket 5 may also be replaced by a washer or other components capable of achieving the above-mentioned effects, and the description thereof is omitted.

It will be appreciated by those of ordinary skill in the art that in the embodiments described above, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be basically implemented without these technical details and various changes and modifications based on the above-described embodiments. Accordingly, in actual practice, various changes in form and detail may be made to the above-described embodiments without departing from the spirit and scope of the present application.

Claims

1. A lamp is characterized by comprising a rear shell, a light source module and a power line, wherein the light source module is installed on the rear shell, and the power line is connected in through the rear shell and is electrically connected with the light source module;

the light source module includes:

the annular lens cover is arranged on the first lamp ring;

2. The lamp of claim 1, wherein the lamp beads are arranged around a same center on the light source substrate to form at least four lamp rings, namely a first lamp ring, a second lamp ring, a third lamp ring and a fourth lamp ring;

the lens assembly includes: at least two annular lenses and a plurality of single lenses;

one annular lens covers and locates on the third lamp ring, and a plurality of piece of single lens install on each lamp pearl of fourth lamp ring one-to-one.

3. The lamp as claimed in claim 2, wherein the four lamp rings are arranged from the center to the outside in sequence as follows: the lamp comprises a first lamp ring, a third lamp ring, a second lamp ring and a fourth lamp ring;

or the four lamp rings are arranged outwards from the surrounding center in sequence as follows: the second lamp ring, the fourth lamp ring, the first lamp ring and the third lamp ring.

4. The lamp according to claim 2, wherein in each of the lamp beads, the ratio of the number of the lamp beads covered under the annular lens to the number of the lamp beads covered under the single lens is: 0.8:1 to 1: 1.2.

5. The lamp as claimed in claim 4, wherein the four lamp rings are arranged from the center to the outside in sequence as follows: the lamp comprises a first lamp ring, a second lamp ring, a third lamp ring and a fourth lamp ring;

or the four lamp rings are arranged outwards from the surrounding center in sequence as follows: the second lamp ring, the first lamp ring, the fourth lamp ring and the third lamp ring.

6. The lamp as claimed in claim 4, wherein the four lamp rings are arranged from the center to the outside in sequence as follows: the lamp comprises a first lamp ring, a second lamp ring, a fourth lamp ring and a third lamp ring;

or the four lamp rings are arranged outwards from the surrounding center in sequence as follows: the second lamp ring, the first lamp ring, the third lamp ring and the fourth lamp ring.

7. The lamp of claim 1, wherein the top of the annular lens and the top of the single lens are equidistant from the light source substrate.

8. A light fixture as recited in claim 7, wherein the annular lens comprises a dome portion and a sidewall portion connected to the dome portion, the dome portion having an arcuate cross-section, the dome portion being connected to the light source substrate by the sidewall portion.

9. A light fixture as recited in claim 8, wherein the dome portion has a radius of curvature that is less than a radius of curvature of the singlet lens.

10. The luminaire of claim 9, further comprising: a gasket;

the gasket is correspondingly arranged between the lamp bead in the first lamp ring and the light source substrate.