CN211060040U - Uniform light emitting device and L ED uniform light lamp - Google Patents

Abstract

The utility model provides an even light-emitting device and L ED dodging lamps and lanterns relates to the lamps and lanterns field, this even light-emitting device is including dodging the ware, light source and mounting substrate, be provided with the optics chamber in the dodging ware, and dodging the ware has a play plain noodles, set up the light-emitting mouth with optics chamber intercommunication on the play plain noodles, mounting substrate is connected and partially shelters from the light-emitting mouth with going out the plain noodles, the light source setting shelters from the light-emitting mouth and is close to the surface of dodging the ware at mounting substrate, be provided with the optical surface in the optics intracavity, the optical surface is used for the light that the reflection light source sent, and jets out by the light-emitting mouth.

Description

Uniform light emitting device and L ED uniform light lamp

Technical Field

The utility model relates to a lamps and lanterns field particularly, relates to an even light-emitting device and L ED even light lamps and lanterns.

Background

In modern lighting applications, a light emitting diode L ED light source gradually replaces a conventional light source due to a series of advantages such as energy conservation, high efficiency and good stability, however, generally, the light emitted from a L ED light source is lambertian, and light spots on a plane are circular, which cannot meet the application requirements of non-circular light spots such as rectangles.

At present, rectangular light distribution is carried out through a lens and a reflecting cup, and the lens is basically manufactured by plastic processing. If a high-power light source is adopted, the heat generated by the light source is high, the structural performance and the optical performance of the plastic lens can be greatly influenced in a high-temperature state, the light emitted by the conventional reflecting cup is consistent with the light source, and the total light overflow can occur, and the total light overflow is not controlled by the reflecting cup, so that the uniform illumination effect is difficult to realize.

In view of this, it is important to design and manufacture a uniform light emitting device which is suitable for a high-power light source and can illuminate uniformly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an even light-emitting device can be applicable to high-power light source, can realize even light-emitting simultaneously.

Another object of the present invention is to provide an L ED light homogenizing lamp, which emits light uniformly.

The utility model is realized by adopting the following technical scheme.

In one aspect, the utility model provides an even light-emitting device, including even light ware, light source and mounting substrate, be provided with the optics chamber in the even light ware, just even light ware has a play plain noodles, seted up on the play plain noodles with the light-emitting window of optics chamber intercommunication, mounting substrate with go out the plain noodles and connect and partially shelter from the light-emitting window, the light source sets up mounting substrate shelters from the light-emitting window just is close to the surface of even light ware, be provided with the optical surface in the optics chamber, the optical surface is used for the reflection the light that the light source sent, and by the light-emitting window jets out.

Further, the optical surface is a free-form surface.

Further, the area of the light outlet shielded by the mounting substrate is less than or equal to 1/2 of the light outlet area of the light outlet.

Furthermore, the number of the optical cavities is two, the two optical cavities are symmetrically distributed in the light homogenizer relative to a symmetrical plane, the light outlet is respectively communicated with the two optical cavities, an optical surface is arranged in each optical cavity, and the two optical surfaces are used for reflecting the light emitted by the light source and are emitted by the light outlet.

Further, each optical surface comprises a first curved surface and a second curved surface, the first curved surface extends from the symmetrical surface to the edge of the light outlet, the second curved surface extends from the symmetrical surface to the second curved surface, and the curvatures of the first curved surface and the second curved surface are different.

Further, the first curved surface is a smooth surface, and the second curved surface is a non-smooth surface.

Further, the light source is disposed on an intersection line of the symmetry plane and the surface of the mounting substrate.

Further, even light ware includes integrative bearing substrate and even light cover that sets up, the light-emitting port is seted up on the bearing substrate, even light cover is established on the bearing substrate and have the optics chamber, just bearing substrate with still be provided with the strengthening rib between the even light cover.

Furthermore, a plurality of mounting holes are formed in the bearing substrate, a connecting piece is arranged in each mounting hole, a plurality of connecting holes are formed in the mounting substrate, and the connecting pieces correspondingly extend into the connecting holes one by one and are connected with the mounting substrate.

In another aspect, the utility model provides an L ED dodging lamps and lanterns, including even light-emitting device, even light-emitting device includes dodging ware, light source and mounting substrate, be provided with the optics chamber in the dodging ware, just dodging ware has a play plain noodles, set up on the play plain noodles with the light-emitting window of optics chamber intercommunication, mounting substrate with go out the plain noodles and connect and partially shelter from the light-emitting window, the light source sets up mounting substrate shelters from the light-emitting window just is close to the surface of dodging ware, be provided with the optical surface in the optics intracavity, the optical surface is used for the reflection the light that the light source sent, and by the light-emitting window jets out.

The utility model discloses following beneficial effect has:

the utility model provides a pair of even light-emitting device, through setting up the light source and sheltering from the part of light-emitting window at mounting substrate, and be close to the surface of even light ware, at the during operation, the light that the light source sent jets out towards the optical cavity to optical surface by in the optical cavity reflects out, jet out by the light-emitting window, the reflection direction of optical surface is different with the light-emitting direction of light source, can avoid appearing the full flash, realize by the even light-emitting of light-emitting window, simultaneously owing to adopt the reflection light-emitting, can be applicable to high-power light source. Compared with the prior art, the utility model provides an even light-emitting device is applicable to high-power light source, can reflect the light-emitting through the optical surface in the optical cavity to can realize even light-emitting, promote the light-emitting quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional structure view of a uniform light emitting device provided by the present invention;

fig. 2 is a schematic view of an overall structure of the uniform light emitting device provided by the present invention at a first viewing angle;

fig. 3 is a schematic view of an overall structure of the uniform light emitting device provided by the present invention at a second viewing angle;

FIG. 4 is a schematic structural diagram of the light homogenizer in FIG. 1 at a first viewing angle;

FIG. 5 is a schematic structural diagram of the light homogenizer in FIG. 1 under a second viewing angle;

fig. 6 is a schematic view of the overall structure of the uniform light emitting device at the third viewing angle.

Icon: 100-uniform light emitting device; 110-a light homogenizer; 111-a carrier substrate; 113-homogenizing the mask; 117-mounting holes; 119-connecting hole; 130-a light source; 150-a mounting substrate; 170-an optical cavity; 171-optical surface; 173-first curved surface; 175-a second curved surface; 177-convex strips; 179-projection; 190-light exit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As disclosed in the background art, in order to realize non-circular light distribution such as rectangle among the prior art, the emergent light to L ED light source needs to be handled, and the light-emitting through the lens is not suitable for high-power light source, and application range is limited.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 3 (arrows indicate light directions), the present embodiment provides a uniform light emitting device 100, which can avoid the phenomenon of full light overflow and achieve uniform light emission.

The uniform light emitting device 100 provided in this embodiment includes a light homogenizer 110, a light source 130, and a mounting substrate 150, wherein an optical cavity 170 is disposed in the light homogenizer 110, the light homogenizer 110 has a light emitting surface, the light emitting surface is provided with a light outlet 190 communicated with the optical cavity 170, the mounting substrate 150 is connected to the light emitting surface and partially shields the light outlet 190, the light source 130 is disposed on the surface of the mounting substrate 150 that shields the light outlet 190 and is close to the light homogenizer 110, an optical surface 171 is disposed in the optical cavity 170, and the optical surface 171 is used for reflecting light emitted by the light source 130 and emitting the light from the light outlet 190.

In this embodiment, the light source 130 is L ED lamp beads, and it is fixed to be set up on the mounting substrate 150, and in actual work, the light that the light source 130 sent is to the optical cavity 170 outgoing, and reflect by the optical surface 171 in the optical cavity 170, emit by light exit 190, the reflection direction of optical surface 171 is different with the light-emitting direction of light source 130, can avoid appearing the full overflow light, realize by the even light-emitting of light exit 190, owing to adopt the reflection light-emitting simultaneously, can be applicable to high-power light source 130.

In this embodiment, the mounting substrate 150 is further provided with a driving circuit for driving and controlling L ED lamp beads to emit light, and the mounting substrate 150 is connected with the supporting structure of the lamp, so that the supporting function can be achieved.

In the present embodiment, the optical surface 171 is a free-form surface. By reflecting the free-form surface, most of the light emitted from the light source 130 can be emitted from the light exit port 190. In the present embodiment, the specific curved surface shape of the optical surface 171 can be obtained through experiments, and the reflection principle thereof can be found in the curved surface reflection principle of the conventional reflector cup, and the curvature of the surface of the optical surface 171 is not particularly limited herein as long as it can reflect the light emitted from the light source 130 and emit the light through the light outlet 190.

In the present embodiment, the mounting substrate 150 blocks 1/2 where the area of the light exit port 190 is smaller than or equal to the area of the light exit port 190. Specifically, the area of the blocked part of the light outlet 190 is 1/3 of the area of the light outlet 190, so that most of the light outlet 190 is not blocked, and the light intensity and the light emitting effect are improved.

It should be noted that, here, the area of the light outlet 190 refers to the projection area of the light outlet 190 in the horizontal direction, and the mounting substrate 150 is disposed in the horizontal direction, that is, the projection of the mounting substrate 150 in the horizontal direction overlaps with the projection of the light outlet 190 in the horizontal direction, so that the mounting substrate 150 can extend to the light outlet 190 and provide a mounting space for the light source 130, and meanwhile, the mounting substrate 150 is made of a non-transparent material and can shield the light source 130 to prevent the light source 130 from directly emitting light from the light outlet 190.

In this embodiment, there are two optical cavities 170, the two optical cavities 170 are symmetrically distributed in the light homogenizer 110 with respect to a symmetric plane, the light exit port 190 is respectively communicated with the two optical cavities 170, an optical surface 171 is disposed in each optical cavity 170, and the two optical surfaces 171 are used for reflecting the light emitted by the light source 130 and exiting from the light exit port 190. Specifically, the central portion of the inner wall of the light homogenizer 110 has a protruding strip 177, the inside of the light homogenizer 110 is divided into two mutually communicated optical cavities 170 by the protruding strip 177, and the protruding strip 177 and the inner wall of the light homogenizer 110 are in smooth transition.

In this embodiment, the light exit 190 is approximately circular, the mounting substrate 150 is shielded on one side of the light exit 190, the other side of the light exit 190 has a protrusion 179 protruding toward the center of the light exit 190, the protrusion 179 is an extension of the protrusion 177 at the light exit 190, and the protrusion 179 is symmetrical with respect to the symmetry plane.

Referring to fig. 4 and 5 in combination, each optical surface 171 includes a first curved surface 173 and a second curved surface 175, the first curved surface 173 is connected to the second curved surface 175, the first curved surface 173 extends from the symmetrical plane to the edge of the light outlet 190, the second curved surface 175 extends from the symmetrical plane to the second curved surface 175, and the curvatures of the first curved surface 173 and the second curved surface 175 are different. Specifically, the surface area of the first curved surfaces 173 is larger than that of the second curved surfaces 175, and when the light emitted from the light source 130 is reflected, most of the light is reflected by the two first curved surfaces 173 toward the light outlet 190.

In the present embodiment, the first curved surface 173 has three curved sides, wherein the first curved side is a portion of the edge of the light exit 190, the second curved side is an edge of the second curved surface 175, and the third curved side is a connecting line with the protruding strip 177 and is located on the symmetrical plane. The second curved surface 175 also has three curved sides, wherein a first curved side is located at the edge of the protrusion 179 on the light outlet 190, a second curved side is the edge of the first curved surface 173, and a third curved side is a connecting line with the protrusion 177 and is located on the symmetrical plane.

In this embodiment, the first curved surface 173 is a smooth surface, and the second curved surface 175 is a non-smooth surface. The second curved surface 175 is not totally reflected, so as to avoid light overflow caused by the overlapping of the light reflected by the second curved surface 175 and the light reflected by the first light, and avoid the final uneven light emission. Specifically, the second curved surface 175 is a frosted surface, which can prevent the generation of concentrated reflection. In other preferred embodiments of the present invention, the second curved surface 175 is coated with a black coating, which can also prevent reflected light.

It should be noted that, in this embodiment, the light surface is a mirror surface, specifically, the first curved surface 173 has an excellent reflection characteristic by polishing and coating with high precision, and most of the light can be emitted from the light exit 190, and the forming and reflection principle of the mirror surface will not be described herein again.

In the present embodiment, the light source 130 is disposed on an intersection line of the symmetry plane and the surface of the mounting substrate 150. Specifically, the light source 130 is disposed in the middle of the mounting substrate 150, such that the distance between the light source 130 and the two first curved surfaces 173 is equal everywhere, further ensuring uniform light emission. In addition, the size of the light source 130 is much smaller than that of the mounting substrate 150, so that the problem of uneven light emission caused by the size of the light source 130 can be avoided as much as possible.

Referring to fig. 6, the light homogenizer 110 includes a carrier substrate 111 and a light homogenizing cover 113 integrally disposed, the light outlet 190 is disposed on the carrier substrate 111, the light homogenizing cover 113 is disposed on the carrier substrate 111 and has an optical cavity 170, and a stiffener is disposed between the carrier substrate 111 and the light homogenizing cover 113. By arranging the reinforcing ribs, the connection strength between the bearing substrate 111 and the dodging cover 113 is higher.

In the present embodiment, the light homogenizing cover 113 is a convex shell, and has two optical cavities 170 inside. And the light homogenizing cover 113 and the carrying substrate 111 are made of opaque materials such as colored plastics, so that light leakage can be avoided.

In the present embodiment, the light-emitting surface is a planar lower surface of the supporting substrate 111 away from the light uniformizing cover 113, so that the light emitted from the light source 130 is higher than the light outlet 190 or is flush with the light outlet 190.

In this embodiment, the carrier substrate 111 has a plurality of mounting holes 117, each mounting hole 117 has a connecting element disposed therein, the mounting substrate 150 has a plurality of connecting holes 119, and the connecting elements extend into the connecting holes 119 in a one-to-one correspondence and are connected to the mounting substrate 150. Specifically, the connector is a plastic screw so that the carrier substrate 111 and the mounting clip can be detachably connected and can be insulated.

In summary, in the present embodiment, in actual operation, light emitted from the light source 130 is emitted toward the optical cavity 170, reflected by the optical surface 171 in the optical cavity 170, and emitted from the light outlet 190, and a reflection direction of the optical surface 171 is different from a light emitting direction of the light source 130, so that occurrence of full-spill light can be avoided, uniform light emission from the light outlet 190 can be realized, and meanwhile, due to adoption of reflected light emission, the uniform light emitting device 100 can be suitable for the high-power light source 130. After the light source 130 is distributed by the light homogenizer 110, an excellent illumination range and a uniform illumination spot can be obtained.

Second embodiment

The present embodiment provides an L ED light homogenizing lamp, which includes a lamp holder and a light homogenizing device 100, wherein the basic structure and principle of the light homogenizing device 100 and the technical effect thereof are the same as those of the first embodiment, and for the sake of brief description, reference may be made to the corresponding contents of the first embodiment for the parts that are not mentioned in the present embodiment.

The uniform light emitting device 100 includes a light homogenizer 110, a light source 130 and a mounting substrate 150, wherein an optical cavity 170 is disposed in the light homogenizer 110, the light homogenizer 110 has a light emitting surface, the light emitting surface is provided with a light emitting port 190 communicated with the optical cavity 170, the mounting substrate 150 is connected with the light emitting surface and partially shields the light emitting port 190, the light source 130 is disposed on the surface of the mounting substrate 150, which shields the light emitting port 190 and is close to the light homogenizer 110, an optical surface 171 is disposed in the optical cavity 170, and the optical surface 171 is used for reflecting light emitted by the light source 130 and emitting the light from the light emitting port 190.

In this embodiment, the mounting substrate 150 is connected to a lamp holder, which plays a supporting role.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an even light-emitting device, its characterized in that, includes even light ware, light source and mounting substrate, be provided with the optical cavity in the even light ware, just even light ware has a play plain noodles, set up on the play plain noodles with the light-emitting window of optical cavity intercommunication, mounting substrate with go out the plain noodles and connect and partially shelter from the light-emitting window, the light source sets up mounting substrate shelters from the part of light-emitting window, just the light source is located mounting substrate is close to the surface of even light ware, be provided with the optical surface in the optical cavity, the optical surface is used for the reflection the light that the light source sent, and by the light-emitting window jets out.

2. The device of claim 1, wherein the optical surface is a free-form surface.

3. The device of claim 2, wherein the mounting substrate blocks 1/2 that the area of the light outlet is smaller than or equal to the area of the light outlet.

4. The device of claim 2, wherein there are two optical cavities, two optical cavities are symmetrically distributed in the light homogenizer with respect to a symmetry plane, the light exit port is respectively communicated with the two optical cavities, and an optical surface is disposed in each optical cavity, and both the two optical surfaces are used for reflecting the light emitted from the light source and exiting from the light exit port.

5. The device of claim 4, wherein each of the optical surfaces comprises a first curved surface and a second curved surface, the first curved surface is connected to the second curved surface, the first curved surface extends from the symmetry plane to the edge of the light outlet, the second curved surface extends from the symmetry plane to the first curved surface, and the curvatures of the first curved surface and the second curved surface are different.

6. The device of claim 5, wherein the first curved surface is smooth and the second curved surface is non-smooth.

7. The device of claim 4, wherein the light source is disposed on an intersection of the symmetry plane and the surface of the mounting substrate.

8. The device of claim 1, wherein the light homogenizer comprises a carrier substrate and a light homogenizing cover, the light outlet is disposed on the carrier substrate, the light homogenizing cover is disposed on the carrier substrate and has the optical cavity, and a rib is disposed between the carrier substrate and the light homogenizing cover.

9. The device of claim 8, wherein the carrier substrate has a plurality of mounting holes, each of the mounting holes has a connecting member disposed therein, the mounting substrate has a plurality of connecting holes, and the connecting members extend into the connecting holes in a one-to-one correspondence and are connected to the mounting substrate.

10. An L ED dodging lamp, comprising the uniform light emitting device as claimed in any one of claims 1-9.

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