CN216693133U

CN216693133U - Gathering LED lens

Info

Publication number: CN216693133U
Application number: CN202220246850.XU
Authority: CN
Inventors: 焦其文; 陈劲
Original assignee: Guangdong Xingzhiji Technology Co ltd
Current assignee: Guangdong Xingzhiji Technology Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-06-07
Anticipated expiration: 2032-01-29

Abstract

The utility model relates to a condensing LED lens. The gathering LED lens comprises a lens main body, wherein the outer side face of the lens main body is a lens convex face, a reflective coating is arranged on the outer side face, an installation space capable of accommodating an LED light source is formed in the concave bottom of the lens main body, the part of the lens main body, which is just opposite to the installation position of the LED light source in the installation space, is a positive Fresnel lens part, the inner side face of the installation space is the lens convex face, and light reflected to the light emergent face of the lens main body from the outer side face of the lens main body is perpendicular to the light emergent face of the lens main body. The LED flashlight with the LED focusing lens is far in range and high in light energy utilization rate, an LED light source can be arranged in an installation space, so that the space of the LED focusing lens is effectively utilized, and meanwhile, the thickness of the LED focusing lens can be half of that of a common lens, so that the size of the flashlight can be reduced.

Description

Gathering LED lens

Technical Field

The utility model relates to the technical field of lighting equipment, in particular to a focusing LED lens suitable for a flashlight.

Background

The LED light source has the advantages of high brightness, low power consumption, small physique and the like, so that a plurality of lighting devices on the market adopt the LED light source at present. The LED light source also enables the flashlight industry to be rapidly developed, and the light source emitted by the LED can achieve the focusing effect by adopting a reflecting cup and a lens or adopting a traditional lens mode, so that the range of the flashlight is increased, and the brightness is enhanced.

However, the reflector cup plus the lens or the conventional lens are thick, which affects the volume of the product and makes the product heavy.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a converging LED lens that overcomes or at least partially solves the above problems.

The gathering LED lens comprises a lens body, wherein the outer side face of the lens body is a lens convex face, a reflective coating is arranged on the outer side face, an installation space capable of accommodating an LED light source is formed in the bottom of the lens body in a concave mode, the part, right facing the installation position of the LED light source in the installation space, of the lens body is a positive Fresnel lens part, the inner side face of the installation space is the lens convex face, part of light of the LED light source can be refracted to the light emergent face of the lens body through the inner side face of the installation space, then the light emergent face of the lens body is reflected to the outer side face of the lens body through the light emergent face of the lens body, and then the light emergent face of the lens body is reflected to the light emergent face of the lens body through the outer side face of the lens body, and the light reflected to the light emergent face of the lens body through the outer side face of the lens body is perpendicular to the light emergent face of the lens body.

In one embodiment, the outer edge of the mounting space protrudes towards the side facing away from the light-emitting surface of the lens body to form an annular mounting seat capable of being matched with the LED light source.

In one embodiment, the edge of the light exit surface of the lens body forms a step for receiving a sealing ring.

In the focusing LED lens of the present invention, the positive fresnel lens portion can adjust a portion of the light emitted from the LED light source directly irradiating the positive fresnel lens portion into a focused light, so that the LED flashlight using the focusing LED lens has a longer range.

The outer side surface of the lens main body is provided with a reflective coating, and the reflective function of the reflective coating can improve the utilization rate of light energy, so that the LED flashlight adopting the LED focusing lens has a longer range.

The LED light source may be arranged in the installation space to effectively utilize the space of the condensing LED lens, and the thickness of the condensing LED lens may be half of that of a general lens, so that the size of the flashlight may be reduced, especially for a portable mini-focusing flashlight.

Drawings

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

FIG. 1 is a schematic structural diagram of an embodiment of a condensing LED lens according to the present invention;

FIG. 2 is a cross-sectional view of the focusing LED lens of FIG. 1;

FIG. 3 is an assembly view of the focusing LED lens and LED light source of FIG. 1;

FIG. 4 is an exploded view of the assembly shown in FIG. 3;

fig. 5 is a light traveling diagram of the condensing LED lens of fig. 1.

Description of reference numerals: 1. an outer side surface; 2. a light reflecting coating; 3. an installation space; 4. a positive Fresnel lens section; 5. an inner side surface; 6. a light-emitting surface; 7. an annular mounting seat; 8. a cover is installed in the middle; 9. an LED light source; 10. a converging LED lens; 11. and (4) a step.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

The terms "central," "longitudinal," "lateral," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like, referred to or as may be referred to in the description of the utility model, are used in the indicated orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover non-exclusive inclusions.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A focusing LED lens suitable for use in a flashlight according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1 and 2, a focusing LED lens according to an embodiment of the present invention includes a lens body, an outer side surface 1 of the lens body is a convex surface of the lens, and a reflective coating 2 is disposed on the outer side surface 1. The reflective coating 2 may be a high reflective film coated on the outer side surface 1 of the lens body to increase the reflective function of the outer side surface 1 of the lens body, and the high reflective film may be a metal reflective film, an all-dielectric reflective film, or a metal dielectric reflective film formed by combining the two reflective films.

The bottom of the lens body is concave inwards to form an installation space 3 capable of accommodating an LED light source, the part of the lens body, which faces the installation position of the LED light source in the installation space 3, is a positive Fresnel lens part 4, and the surface of the positive Fresnel lens part 4, which faces the installation position of the LED light source in the installation space 3, is formed by a series of sawtooth-shaped grooves when viewed from the cross section, wherein the angles of the grooves are different from those of adjacent grooves, but the grooves concentrate light rays to form a central focus (as shown in figure 5), so that the positive Fresnel lens part 4 can adjust the part of the light rays emitted by the LED light source, which directly irradiate the positive Fresnel lens part 4, and therefore, the range of the LED flashlight adopting the LED focusing lens is farther.

The inner side surface 5 of the installation space 3 is a convex lens surface, part of light of the LED light source can be refracted to the light emitting surface 6 of the lens body through the inner side surface 5 of the installation space 3, then the light emitting surface 6 of the lens body reflects to the outer side surface 1 of the lens body (part of light is split and emitted from the light emitting surface 6 of the lens body), then the light emitting surface 6 of the lens body reflects from the outer side surface 1 of the lens body, and the light reflected to the light emitting surface 6 of the lens body from the outer side surface 1 of the lens body is perpendicular to the light emitting surface 6 of the lens body. Because the outer side surface 1 of the lens main body is provided with the reflective coating 2, the reflective function of the reflective coating 2 can improve the light energy utilization rate, so that the LED flashlight adopting the LED focusing lens has a longer range.

The LED light source may be arranged in the installation space 3 to effectively utilize the space of the focusing LED lens, and the thickness of the focusing LED lens may be half of that of a general lens, so that the size of the flashlight may be reduced, especially for a portable mini-focusing flashlight.

In one embodiment, the outer edge of the mounting space 3 protrudes towards the side facing away from the light exit surface 6 of the lens body to form an annular mounting seat 7 that can be matched with an LED light source. Referring to fig. 3 and 4, the LED light source 9 may be used with a central mounting cover 8, the central mounting cover 8 may be embedded in the annular mounting seat 7, and simultaneously, the bottom of the LED light source 9 may be embedded in a mounting hole of the central mounting cover 8, so that the LED light source 9 may be fixed on the annular mounting seat 7 when used with the central mounting cover 8.

Returning now to FIG. 2, in one embodiment, the edge of the light exit surface 6 of the lens body forms a step 11 for seating a sealing ring that prevents external fluids from entering the flashlight from the gap between the lens cover and the lens body when the lens cover is mated with the lens body.

Claims

1. A concentrating LED lens, comprising: including the lens main part, the lateral surface of lens main part is the lens convex surface, and the lateral surface has arranged reflection of light cladding material, the concave mounting space that can hold the LED light source is formed to lens main part bottom indent, just be positive fresnel lens portion to the part of the mounted position of LED light source in the mounting space in the lens main part, the medial surface of mounting space is the lens convex surface, the partial light of LED light source can be through the medial surface refraction of mounting space to the play plain noodles of lens main part, then reflects to the lateral surface of lens main part by the play plain noodles of lens main part, reflects to the play plain noodles of lens main part by the lateral surface of lens main part again, it is perpendicular with the play plain noodles of lens main part to reflect to the light on the play plain noodles of lens main part by the lateral surface of lens main part.

2. A concentrating LED lens according to claim 1, wherein: the outer edge of the mounting space protrudes towards one side of the light-emitting surface back to the lens main body to form an annular mounting seat which can be matched with the LED light source.

3. A concentrating LED lens according to claim 1 or 2, characterized in that: the edge of the light-emitting surface of the lens main body forms a step for placing a sealing ring.