CN219267685U

CN219267685U - LED light source with optical integration

Info

Publication number: CN219267685U
Application number: CN202222759772.6U
Authority: CN
Inventors: 张小斌; 罗建华
Original assignee: Toyo Industry Guangdong Co ltd
Current assignee: Toyo Industry Guangdong Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-06-27
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses an LED light source with optical integration, which comprises a light source base, a light source assembly arranged on the light source base and an optical lens covered on the light source assembly, wherein a light homogenizing structure capable of dispersing light rays is arranged on the lower surface of the optical lens. Under the effect of the light homogenizing structure on the lower surface of the optical lens, incident light can be deflected unordered, and the light entering the optical lens from the light guide space diverges, so that the LED light source emits light uniformly and has no color separation phenomenon.

Description

LED light source with optical integration

Technical Field

The utility model relates to the technical field of LED light sources, in particular to an LED light source with optical integration.

Background

The LED light source is a light-emitting diode light source. The light source has the advantages of small volume, long service life, high efficiency and the like, can be continuously used for 10 ten thousand hours, and is also mainstream in the field of illumination in future. The LED is an all-solid luminous body, is shock-resistant and impact-resistant, is not easy to break, and has recyclable waste and no pollution. The light source has small volume, can be combined at will, is easy to develop into a light, thin, short and small lighting product, and is convenient to install and maintain. Of course, energy conservation is the most important reason we consider using LED light sources, perhaps more expensive than traditional light sources, but with energy conservation over a year to reclaim the investment of the light source, thus achieving a net gain in energy conservation of several times each year over 4-9 years.

Because of the light emitting characteristics of the LED light source, in order to avoid non-uniformity of light, the conventional LED light source needs to be provided with an independent optical device for controlling light during application, but has the problems of large optical volume, high cost and troublesome installation.

In order to solve the above problems, the patent with publication number CN 208521959U discloses an LED package structure with two clamped lenses, which changes the existing manner of directly coating fluorescent powder on an LED chip, and sets the lenses into two layers, and injects fluorescent powder between the two layers of lenses, so as to further improve the uniformity of the fluorescent powder and the uniformity of light emission.

Disclosure of Invention

In view of the above, the present utility model aims to provide an LED light source with optical integration, which has uniform light emission and low production cost.

The utility model adopts the technical proposal for solving the technical problems that:

the utility model provides a take LED light source of optics integration, includes light source base, sets up the light source subassembly on the light source base, and cover the optical lens on the light source subassembly, optical lens's lower surface is provided with the even light structure that can diverge light.

In a preferred embodiment of the present utility model, the light homogenizing structure is a frosted surface disposed on a lower surface of the optical lens.

In a preferred embodiment of the present utility model, the light homogenizing structure includes a plurality of protrusions uniformly distributed on a lower surface of the optical lens.

In a preferred embodiment of the utility model, the projections have a pyramid shape.

In a preferred embodiment of the present utility model, the light source assembly includes a sheet of LED chip disposed on a bottom surface of the mounting groove and a phosphor layer covering the LED chip.

In a preferred embodiment of the present utility model, the light source assembly includes at least 2 LED chips disposed on the bottom surface of the mounting groove, and a phosphor layer covering all the LED chips, at least one LED chip being a first chip capable of emitting a first color light, and at least one LED chip being a second chip capable of emitting a second color light.

In a preferred embodiment of the present utility model, the light source assembly includes at least 2 LED chips disposed on the bottom surface of the mounting groove, the at least one LED chip being a first chip capable of emitting a first color light, and the at least one LED chip being a second chip capable of emitting a second color light.

In a preferred embodiment of the present utility model, the optical lens is a condenser lens, a diffuser lens, or a polarizer lens.

The beneficial effects of the utility model are as follows:

according to the utility model, under the action of the light homogenizing structure on the lower surface of the optical lens, incident light rays can be deflected unordered, and the light rays entering the optical lens from the light guide space are diffused, so that the LED light source emits light uniformly, and no color separation phenomenon exists.

In the second aspect of the present utility model, the number of LED chips is 2 or more, and each LED chip emits color light of different colors, thereby enabling to emit color light of a plurality of different colors by one LED light source.

Drawings

FIG. 1 is a cross-sectional view of embodiment 1 of the present utility model;

FIG. 2 is an enlarged view of a first version of section A of FIG. 1;

FIG. 3 is an enlarged view of a second version of section A of FIG. 1;

FIG. 4 is an optical path diagram of embodiment 1 of the present utility model;

FIG. 5 is an optical path diagram of embodiment 2 of the present utility model;

FIG. 6 is a cross-sectional view of embodiment 3 of the present utility model;

FIG. 7 is an optical path diagram of embodiment 4 of the present utility model;

fig. 8 is a cross-sectional view of embodiment 5 of the present utility model.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the description of "preferred," "less preferred," and the like, herein is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "preferred", "less preferred" may include at least one such feature, either explicitly or implicitly.

Referring to fig. 1 to 8, the present utility model proposes an LED light source with optical integration, comprising a light source base 1, a light source assembly disposed on the light source base 1, and an optical lens 2 covering the light source assembly, wherein a light homogenizing structure capable of dispersing light entering the optical lens 2 from a light guiding space 3 is disposed on the lower surface of the optical lens 2.

Preferably, the light source base 1 is provided with an upward opening mounting groove 11, the light source assembly is mounted in the mounting groove 11, light generated by the light source assembly enters the optical lens 2 through the light homogenizing structure, and under the action of the light homogenizing structure on the lower surface of the optical lens 2, incident light can be randomly deflected and uniformly diverged, so that the light emitted by the LED light source is uniform and no color separation phenomenon exists.

Example 1

Fig. 1 to 4 show an embodiment 1 of the present utility model, in which the optical lens 2 is a condensing lens, and the condensing lens is a convex lens, so that most of the light emitted by the LED light source faces the same direction, and the condensing effect is achieved. The light source assembly includes a sheet of LED chip 6 disposed on the bottom surface of the mounting groove 11, and a phosphor layer 7 covering the LED chip 6. One LED chip 6 can emit only a single color light, such as white light or yellow light.

In this embodiment, the light homogenizing structure has the following two schemes: as shown in fig. 2, the light uniformizing structure is a frosted surface 4 provided on the lower surface of the optical lens 2. Like frosted glass, frosting 4 is used to spread the light. As shown in fig. 3, the light homogenizing structure includes a plurality of micro-protrusions 5 uniformly distributed on the lower surface of the optical lens 2, and the protrusions 5 are pyramid-shaped and abut against each other, preferably, quadrangular pyramid-shaped. The angle of inclination of the various surfaces of the pyramid-shaped projections 5 is different, by means of which the light can be dispersed, and in this case the user can see a sparkling effect similar to that of a diamond reflection, thanks to the refraction of the pyramid-shaped projections, compared to the case of frosting.

Example 2

Fig. 5 shows an embodiment 2 of the present utility model, which has a similar structure to that of embodiment 1, and the only difference is that the specific structure of the optical lens 2 is that in this embodiment, the optical lens 2 is an astigmatic lens, and an inward concave arc-shaped recess 21 is provided at the top of the astigmatic lens for forming total reflection on a part of the light rays, so that the light rays are emitted from the periphery of the astigmatic lens.

Example 3

Fig. 6 shows embodiment 3 of the present utility model, which has a similar structure to embodiment 1, with the only difference that the specific structure of the optical lens 2 is that in this embodiment, the optical lens 2 is a polarized lens, and one side of the top of the polarized lens is provided with a biasing protrusion 22, so that most of the light is collected at the biasing protrusion 22 and emitted outward.

Example 4

Fig. 7 shows embodiment 4 of the present utility model, in which the optical lens 2 is a condenser lens, which is a convex lens. The light source assembly includes 2 LED chips 6 disposed on the bottom surface of the mounting groove 11 and a phosphor layer 7 covering all the LED chips 6, wherein one LED chip 6 is a first chip capable of emitting a first color light and the other LED chip 6 is a second chip capable of emitting a second color light. For example, the first wafer emits white light, the second wafer emits yellow light, or the first wafer emits green light, the second wafer emits red light … …, or the LED wafers 6 may be set to 3, 4 or 5 or more according to the requirement, and each LED wafer 6 emits different color light, so that multiple different color lights can be emitted by one LED light source.

In this embodiment, the light homogenizing structure has the following two schemes: the first embodiment is a frosting surface 4 provided on the lower surface of the optical lens 2. Like frosted glass, frosting 4 is used to spread the light. The second embodiment of the light homogenizing structure comprises a plurality of tiny protrusions 5 uniformly distributed on the lower surface of the optical lens 2, wherein the protrusions 5 are pyramid-shaped and abut against each other, and preferably have a quadrangular pyramid shape. The pyramid-shaped projections 5 have different angles of inclination on their respective surfaces, by means of which the light can be dispersed.

Example 5

Fig. 8 shows embodiment 5 of the present utility model, which has a similar structure to embodiment 4, and differs from the embodiment in that the light source assembly only has a specific structure, in this embodiment, the light source assembly only includes 2 LED chips 6 disposed on the bottom surface of the mounting groove 11, no phosphor layer is disposed in the mounting groove 11, a light guiding space 3 is formed in the mounting groove 11, and the light guiding space 3 is filled with air or inert gas. The design of the light guiding space 3 has the following effects: 1. the primary refraction can be increased; 2. serves as an avoidance space, and is convenient for arranging a light homogenizing structure on the lower surface of the optical lens 2; 3. can insulate heat.

One of the LED chips 6 is a first chip capable of emitting a first color light, and the other LED chip 6 is a second chip capable of emitting a second color light. For example, the first wafer emits blue light, the second wafer emits red light, or the first wafer emits green light, the second wafer emits red light … …, or the LED wafers 6 may be set to 3, 4 or 5 or more according to the requirement, and each LED wafer 6 emits different color light, so that multiple different color lights can be emitted by one LED light source.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. The utility model provides a take LED light source of optics integration, its characterized in that includes light source base (1), sets up the light source subassembly on light source base (1) and covers optical lens (2) on the light source subassembly, the lower surface of optical lens (2) is provided with the even light structure that can disperse light, is provided with mounting groove (11) that the opening up on light source base (1).

2. An LED light source with optical integration according to claim 1, wherein the light homogenizing structure is a frosted surface (4) arranged on the lower surface of the optical lens (2).

3. An LED light source with optical integration according to claim 1, characterized in that the light homogenizing structure comprises a plurality of protrusions (5) evenly distributed on the lower surface of the optical lens (2).

4. A LED light source with optical integration according to claim 3, characterized in that the protrusions (5) are pyramid-shaped.

5. An LED light source with optical integration according to claim 1, characterized in that the light source assembly comprises a piece of LED die (6) arranged on the bottom surface of the mounting groove (11) and a phosphor layer (7) covering the LED die (6).

6. An LED light source with optical integration according to claim 1, characterized in that the light source assembly comprises at least 2 LED chips (6) arranged on the bottom surface of the mounting groove (11) and a phosphor layer (7) covering all LED chips (6), at least one LED chip (6) being a first chip capable of emitting a first color light and at least one LED chip (6) being a second chip capable of emitting a second color light.

7. An LED light source with optical integration according to claim 1, characterized in that the light source assembly comprises at least 2 LED chips (6) arranged on the bottom surface of the mounting groove (11), at least one LED chip (6) being a first chip capable of emitting a first color light and at least one LED chip (6) being a second chip capable of emitting a second color light.

8. An LED light source with optical integration according to claim 1, characterized in that the optical lens (2) is a condenser lens, a diffuser lens or a polarizer lens.