CN203628520U - Light distribution lens and LED garden lamp with the light distribution lens - Google Patents

Abstract

The utility model discloses a grading lens and have LED garden lamp of this grading lens, including at least one lens unit, this lens unit has incident surface and exit surface, the incident surface is interior concavity curved surface, the exit surface is outer convex curved surface, just the focus 0 of incident surface_AAnd a focal point 0 of the emission surface_BAre not coincident. The utility model discloses a grading lens has directional illumination, through the installation direction of adjusting grading lens, can satisfy different on-the-spot garden lamp mounting means requirements, and the flexibility ratio is high.

Description

Light distribution lens and LED garden lamp with the light distribution lens

technical field

The utility model relates to a lighting device, in particular to a light distribution lens and an LED courtyard lamp with the light distribution lens.

Background technique

As a fourth-generation lighting source, LED has significant advantages in energy saving and longevity. With the development of society, the problem of lighting energy consumption in daily life has become increasingly prominent. Therefore, LED lamps with significant energy-saving advantages are more and more popular.

In the use of various lighting fixtures, especially in garden lights, traditional light sources are generally energy-saving lamps or high-pressure sodium lamps and some LED garden lights. The existing garden light sources are all fixed light source modules and emit light all around. Reflectors are needed to reflect the light to the ground, and the installation flexibility is poor.

Contents of the invention

Aiming at the current state of the art above, the technical problem to be solved by this utility model is to provide a light distribution lens and an LED garden light with the light distribution lens, which can meet the requirements of different on-site installation methods and have good flexibility.

In order to solve the above technical problems, a light distribution lens provided by the utility model includes at least one lens unit, the lens unit has an incident surface and an exit surface, the incident surface is an inner concave curved surface, and the exit surface is an outer Convex curved surface, and the focal point _OA of the incident surface and the focal point 0 _B of the outgoing surface do not coincide.

In one embodiment, there are multiple lens units, and the multiple lens units are arranged at intervals along the length direction of the light distribution lens.

In one of the embodiments, the light distribution lens further includes an indicating portion for indicating the light emitting direction of the lens unit.

In one of the embodiments, the light distribution lens is integrally formed.

An LED courtyard lamp provided by the utility model comprises a lamp holder, a lamp cap connected to one end of the lamp holder, and a light source assembly connected to the other end of the lamp holder. A plurality of LED light-emitting units on the side and a light distribution lens covering the LED light-emitting unit, the LED light-emitting unit includes at least one LED lamp bead; the light distribution lens is the above-mentioned light distribution lens, and the light distribution lens The optical lens is detachably connected to the heat sink, and the light-emitting surface of the LED lamp bead is opposite to the incident surface; the light emitted by the LED light-emitting unit passes through the light distribution lens and then flows to the side of the lamp holder or the light source. It emits from the opposite direction of the lamp holder side.

In one of the embodiments, the LED lighting unit includes a plurality of LED lamp beads, and the plurality of LED lamp beads are arranged at intervals along the axial direction of the lamp head.

In one of the embodiments, the light distribution lens and the heat sink are connected by screws.

In one of the embodiments, a connecting rod is provided on the side of the lamp holder facing away from the lamp cap, the heat sink can slide freely along the connecting rod, and is between the heat sink and the connecting rod. An adjustment mechanism is provided.

In one of the embodiments, the adjustment mechanism includes a first adjustment hole provided on the connecting rod, a second adjustment hole provided on the heat sink, and a second adjustment hole passing through the first adjustment hole and the second adjustment hole. Hole for adjusting screw.

In one of the embodiments, the lamp head interface is E27 or E14.

The light distribution lens of the utility model and the LED garden light with the light distribution lens have directional lighting, and the installation direction of the light distribution lens can be adjusted to meet the installation requirements of different site garden lights, and the flexibility is high.

Description of drawings

Fig. 1 is a schematic diagram of the front view structure of the light distribution lens in one of the embodiments of the utility model;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is a structural schematic diagram and an optical path diagram of the lens unit of the light distribution lens shown in Fig. 1;

Fig. 4 is a schematic structural view of an LED garden light having a light distribution lens shown in Fig. 1;

Figures 5 and 6 are schematic diagrams of the optical path of the LED garden light shown in Figure 4 when it is being installed, wherein Figure 5 is the overall view and Figure 6 is a partial view;

Figures 7 and 8 are schematic diagrams of the light path when the LED garden light shown in Figure 4 is inverted, wherein Figure 7 is an overall view and Figure 8 is a partial view.

Explanation of reference signs: 1. Radiator; 2. Light distribution lens; 21. Lens unit; 21a, incident surface; 21b, outgoing surface; 22. Indicating part; ; 6, the second adjustment hole; 7, the lamp holder; 7a, the external thread; 8, the LED lamp bead; 20, the light source assembly.

Detailed ways

The utility model is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

In one embodiment of the present utility model, a light distribution lens 2 is provided. As shown in FIGS. , the incident surface 21a is a concave curved surface, the outgoing surface 21b is a convex curved surface, and the focal point _OA of the incident surface 21a and the focal point _OB of the outgoing surface 21b do not coincide, so close to the One end entering the incident surface 21a is the lens small end A, and the other end is the lens large end B. After the light enters the directional light distribution lens 2 from the incident surface 21a, the light converges toward the lens large end B directionally.

Preferably, the light distribution lens 2 has a plurality of lens units 21 , and the plurality of lens units 21 are arranged at intervals along the length direction of the light distribution lens 2 .

Preferably, the light distribution lens 2 further includes an indicating portion 22 for indicating the light emitting direction of the lens unit 21 , and in this embodiment, the indicating portion 22 is an arrow. The purpose of the indicating part 22 is to facilitate the installation of the light distribution lens 2 .

Preferably, the light distribution lens 2 is integrally formed.

In another embodiment of the present utility model, an LED garden light is provided, as shown in FIG. 4 , including a lamp holder 5, a lamp holder 7 connected to one end of the lamp holder 5, and a light source assembly 20 connected to the other end of the lamp holder 5. The light source assembly 20 includes a heat sink 1, a plurality of LED light emitting units arranged on the outer peripheral side of the heat sink 1, and a light distribution lens 2 covering the LED light emitting units, and the LED light emitting unit includes at least one LED Lamp beads 8; the light distribution lens 2 is the light distribution lens 2 in the above embodiment, and the light distribution lens 2 is detachably connected to the heat sink 1, preferably, the light distribution lens 2 is connected to the heat sink 1 The radiator 1 is connected by screws. The light-emitting surface of the LED lamp bead 8 is opposite to the incident surface 21a.

As shown in Figures 5 and 6, when the light distribution lens 2 is properly installed, the arrow points to the opposite direction (that is, upward) of the lamp holder 5 side, and the light emitted by the LED light-emitting unit passes through the light distribution lens 2 and then flows toward the lamp. Seat 5 shoots out from the side (that is, directional shoots downward), and the light can be directly irradiated to the ground.

As shown in Figures 7 and 8, when the light distribution lens 2 is reversed, the arrow points to the side of the lamp holder 5 (that is, downward), and the light emitted by the LED light-emitting unit passes through the light distribution lens 2 and then flows toward the lamp holder 5. The light is emitted in the opposite direction of the side (that is, directed downward), and the light can also be directly irradiated to the ground.

Preferably, the LED lighting unit includes a plurality of LED lamp beads 8 , and the plurality of LED lamp beads 8 are arranged at intervals along the axial direction of the lamp holder 7 .

Preferably, the directional light distribution lens 2 is connected to the radiator 1 by screws.

Preferably, the lamp holder 5 is provided with a connecting rod 4 on the side facing away from the lamp cap 7, the radiator 1 can slide freely along the connecting rod 4, and the heat sink 1 and the connecting rod An adjustment mechanism is arranged between the 4. Further, the adjustment mechanism includes a first adjustment hole provided on the connecting rod 4, a second adjustment hole 6 provided on the radiator 1, and a second adjustment hole 6 passing through the first adjustment hole and the second adjustment hole. 6 adjustment screws 3. By loosening the adjusting screw 3, adjusting the light source assembly 20 to slide along the connecting rod 4, adjusting to the desired position, and re-tightening the height adjusting screw 3 to realize the height adjustment of the LED garden light.

Preferably, the specification of the lamp cap 7 is E27 or E14.

To sum up, the light distribution lens in this embodiment has the LED garden light with the light distribution lens. Due to the above-mentioned structure, by adjusting the installation direction of the light distribution lens, it can meet the requirements of different on-site garden light installation methods; and, by Adjusting the installation height of the light source module can meet the installation space requirements of different garden lights while ensuring the best lighting effect.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. A light distribution lens, comprising at least one lens unit, the lens unit has an incident surface and an outgoing surface, characterized in that, the incident surface is a concave curved surface, and the outgoing surface is an external convex curved surface, and the The focal point _OA of the incident surface and the focal point _OB of the outgoing surface do not coincide. 2 . The light distribution lens according to claim 1 , wherein there are a plurality of lens units, and the plurality of lens units are arranged at intervals along the length direction of the light distribution lens. 3 . The light distribution lens according to claim 1 , wherein the light distribution lens further comprises an indicating portion for indicating the light emitting direction of the lens unit. 4 . 4. The light distribution lens according to any one of claims 1 to 3, characterized in that, the light distribution lens is integrally formed. 5. An LED garden light, comprising a lamp holder, a lamp cap connected to one end of the lamp holder and a light source assembly connected to the other end of the lamp holder, the light source assembly includes a heat sink, a plurality of lamps arranged on the peripheral side of the heat sink an LED light-emitting unit and a light distribution lens covering the LED light-emitting unit, the LED light-emitting unit includes at least one LED lamp bead; it is characterized in that the light distribution lens is any one of claims 1 to 4 The light distribution lens, and the light distribution lens is detachably connected to the heat sink, the light-emitting surface of the LED lamp bead is opposite to the incident surface; the light emitted by the LED light-emitting unit passes through the distribution The light lens emits to the side of the lamp holder or the direction opposite to the side of the lamp holder. 6 . The LED garden light according to claim 5 , wherein the LED lighting unit comprises a plurality of LED lamp beads, and the plurality of LED lamp beads are arranged at intervals along the axial direction of the lamp head. 7. The LED garden light according to claim 5, characterized in that, the light distribution lens is connected to the heat sink by screws. 8. The LED garden light according to any one of claims 5 to 7, wherein a connecting rod is provided on the side of the lamp holder facing away from the lamp cap, and the heat sink can move along the connecting rod It can slide freely, and an adjustment mechanism is arranged between the heat sink and the connecting rod. 9. The LED garden light according to claim 8, wherein the adjusting mechanism comprises a first adjusting hole arranged on the connecting rod, a second adjusting hole arranged on the heat sink and passing through The adjusting screws of the first adjusting hole and the second adjusting hole. 10. The LED garden light according to claim 8, characterized in that, the lamp base interface is E27 or E14.

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