CN215951157U

CN215951157U - LED condensing lens, LED lamp strip and LED lamp tube

Info

Publication number: CN215951157U
Application number: CN202122075088.1U
Authority: CN
Inventors: 赖邦辉
Original assignee: Zohnson Lighting Co ltd
Current assignee: Zohnson Lighting Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-04
Anticipated expiration: 2031-08-30

Abstract

The utility model relates to an LED condensing lens which comprises a cylindrical lens sleeve with a lower opening, wherein a parabolic condensing bowl is arranged in the cylindrical lens sleeve, the top of the condensing bowl is a light-emitting surface, the outer surface of the light-emitting surface is a bead surface, and a plurality of radiating grooves are formed in the bottom of the cylindrical lens sleeve. The utility model further provides an LED lamp bar and an LED lamp tube based on the lens. The lens of the utility model not only can greatly increase the light source projection distance of the LED lamp tube, but also can achieve the anti-dazzle effect.

Description

LED condensing lens, LED lamp strip and LED lamp tube

Technical Field

The utility model relates to the technical field of LED lamps, in particular to an LED condensing lens, an LED lamp bar based on the LED condensing lens and an LED lamp tube based on the LED condensing lens.

Background

At present, most of LED lamp tubes on the market are installed indoors, and therefore most of LED lamp tubes adopt lenses with the light scattering effect, namely, the light scattering lenses are sleeved above patch light sources of the LED lamp tubes. Although the light of the LED lamp tube can be softened by using the light diffusion lens, the projection distance is short, and the LED lamp tube cannot be applied to outdoor places such as landscapes and businesses which need a special light source with a long projection distance. The industrial and mining lamp with a longer projection distance is generally used for illumination in the outdoor places, and the manufacturing cost of the industrial and mining lamp is much higher than that of an LED lamp tube; and because of the strong light-gathering effect, glare is easily generated to people for long-time watching to cause visual fatigue. How to design an anti-glare lens which is suitable for an LED lamp tube and can ensure that the light source has a long projection distance becomes a technical problem which needs to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art, provides an anti-dazzle lens which is suitable for an LED lamp tube and can ensure that the projection distance of a light source is long, and provides an LED lamp bar and an LED lamp tube based on the lens.

The technical scheme adopted by the utility model is as follows: the LED condensing lens comprises a cylindrical lens sleeve with a lower opening, wherein a parabolic condensing bowl is arranged inside the cylindrical lens sleeve, the top of the condensing bowl is a light-emitting surface, the outer surface of the light-emitting surface is a bead surface, and a plurality of radiating grooves are formed in the bottom of the cylindrical lens sleeve.

Preferably, the lens is made of a transparent material of PMMA (polymethyl methacrylate).

Preferably, the inner wall surface of the circumference of the cylindrical lens sleeve is a frosted surface.

Preferably, the cylindrical lens sleeve and the light gathering bowl are of an integrally formed structure.

Preferably, the number of the heat dissipation grooves is four.

Preferably, the lens is a designed 30-degree lens.

Preferably, the bottom of the light gathering bowl is provided with a light source cavity which is sleeved on the patch light source.

Preferably, a gap exists between the bottom of the light-gathering bowl and the bottom of the cylindrical lens sleeve.

The utility model also provides an LED lamp strip which comprises an aluminum substrate, a plurality of LED patch light sources arranged on the aluminum substrate and the LED condensing lenses, wherein each patch light source is sleeved with one LED condensing lens.

The utility model also provides an LED lamp tube which comprises a lamp tube body, wherein the LED lamp strip is arranged in the lamp tube body.

Compared with the prior art, the utility model has the following advantages:

according to the lens, the light-gathering bowl is arranged in the lens, so that the projection distance of a light source is greatly increased; moreover, the light-emitting surface is designed into a bead surface, and the inner wall surface of the circumference of the cylindrical lens sleeve is a frosted surface, so that the anti-glare effect can be achieved; in addition, because the lens volume of LED lamp is less, through set up a plurality of radiating groove in the lens bottom, can effectively distribute away the heat of paster light source, prolong the life of paster light source.

Drawings

FIG. 1 is a schematic diagram of a structure of an LED condensing lens.

Fig. 2 is a schematic diagram of the bottom structure of the LED condenser lens.

Fig. 3 is an internal cross-sectional view of the LED condenser lens.

Fig. 4 is a schematic structural diagram of an LED light bar.

FIG. 5 is a schematic view of the installation of the LED condenser lens and the patch light source on the LED light bar.

The numbers in the figures indicate:

1-cylindrical lens sleeve, 11-radiating groove, 2-light gathering bowl, 21-light-emitting surface, 22-light source cavity, 3-aluminum substrate and 4-patch light source.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiment examples. The utility model can be implemented by:

referring to fig. 1-3, an LED condenser lens includes a cylindrical lens housing 1 having a lower opening, a parabolic condenser bowl 2 is disposed inside the cylindrical lens housing 1, the condenser bowl 2 is equivalent to a reflector structure, and a projection distance of a patch light source can be greatly increased through the condenser bowl 2, so that the LED lamp tube can also be applied to outdoor fields requiring a longer projection distance, such as landscapes and businesses. The cylindrical lens sleeve 1 and the light gathering bowl 2 are of an integrally formed structure, and production cost is saved. The lens is made of PMMA (polymethyl methacrylate) transparent material. PMMA, also known as acryl, Acrylic or organic glass, has the advantages of high transparency, low price, easy machining, etc., and can effectively diffuse light energy of the patch light source outwards. The lens of this embodiment is the lens of design 30 degrees, and 30 degrees are the diffusion angle of LED light, and 30 degrees angles are less, and it is more concentrated to give out light, can further increase throw distance.

The top of the light gathering bowl 2 is a light emergent surface 21, and the outer surface of the light emergent surface 21 is a bead surface. The inner wall surface of the circumference of the cylindrical lens sleeve 1 is a frosted surface. The light emitting surface 21 is designed to be a bead surface, and the inner wall surface of the circumference of the cylindrical lens sleeve 1 is a frosted surface, so that the anti-glare effect can be achieved.

The bottom of the cylindrical lens sleeve 1 is provided with a plurality of radiating grooves 11. The number of the heat dissipation grooves 11 of the present embodiment is four. This lens adopts the design of spotlight bowl 2, though can overcome the short problem of ordinary LED fluorescent tube lens throw distance, nevertheless because this lens is installed on the LED fluorescent tube, the volume is less, and the heat of paster light source can gather inside lens during long-term illumination for the heat can't outwards give off fast. The lens of this embodiment, through being provided with four radiating grooves 11 in the bottom of its cylinder lens cover 1, can make the heat of paster light source outwards distribute fast to the life of extension paster light source.

The bottom of the light gathering bowl 2 is provided with a light source cavity 22 which is sleeved on the patch light source. And a gap is formed between the bottom of the light gathering bowl 2 and the bottom of the cylindrical lens sleeve 1. During installation, the adhesive is only needed to be glued at the position, which is not a heat dissipation hole, at the bottom of the cylindrical lens sleeve 1 of the lens and is adhered to the upper position corresponding to the patch light source of the light bar.

The utility model also provides an LED lamp bar, which comprises an aluminum substrate 3, a plurality of LED patch light sources 4 arranged on the aluminum substrate 3 and the LED condensing lenses, wherein each patch light source 4 is sleeved with one LED condensing lens, and the LED condensing lenses are shown in fig. 4-5.

The utility model also provides an LED lamp tube which comprises a lamp tube body, wherein the LED lamp strip is arranged in the lamp tube body. The LED lamp tube of the present embodiment has the same components as those of the LED lamp tubes on the market except that the above LED light bar is used inside, and will not be described herein. The LED lamp tube of the embodiment utilizes the lens to be arranged on the patch light source 4 of the LED lamp strip, so that the light source projection distance is greatly increased, and the LED lamp tube is suitable for outdoor places such as landscapes and businesses which need special light sources with long projection distances.

Finally, it should be noted that: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The LED condensing lens is characterized by comprising a cylindrical lens sleeve (1) with a lower opening, wherein a parabolic condensing bowl (2) is arranged inside the cylindrical lens sleeve (1), the top of the condensing bowl (2) is a light emergent surface (21), the outer surface of the light emergent surface (21) is a bead surface, and a plurality of radiating grooves (11) are formed in the bottom of the cylindrical lens sleeve (1).

2. The LED condenser lens of claim 1, wherein the lens is made of PMMA transparent material.

3. The LED condenser lens as claimed in claim 2, wherein the inner wall surface of the circumference of the cylindrical lens sleeve (1) is frosted.

4. The LED condenser lens according to claim 1, wherein the cylindrical lens sleeve (1) and the condenser bowl (2) are integrally formed.

5. The LED condenser lens according to claim 1, wherein the number of the heat dissipation grooves (11) is four.

6. The LED condensing lens according to claim 1, wherein said lens is a 30 degree design lens.

7. The LED condenser lens according to claim 1, wherein the bottom of the condensing bowl (2) is provided with a light source cavity (22) for being sleeved on the patch light source (4).

8. The LED condenser lens according to claim 7, wherein a gap exists between the bottom of the condensing bowl (2) and the bottom of the cylindrical lens sleeve (1).

9. An LED light bar, characterized by comprising an aluminum substrate (3), a plurality of LED patch light sources (4) arranged on the aluminum substrate (3), and the LED condenser lens according to any one of claims 1-8, wherein each patch light source (4) is sleeved with one LED condenser lens.

10. An LED lamp tube, comprising a lamp tube body, wherein the LED lamp strip as claimed in claim 9 is disposed inside the lamp tube body.