CN210441148U - Light mixing structure of lamp - Google Patents

Abstract

The utility model discloses a light mixing structure of a lamp, which comprises a substrate provided with at least one LED light source part, at least one lens and a light mixing film; the lens and the light mixing film are sequentially arranged along the emergent direction of the LED light source part respectively; the light mixing film is provided with a plurality of microstructures; the lens is arranged on the substrate and is a light-cutting lens in the short axis direction. The beneficial effects of the utility model reside in that: through the light mixing film with the microstructure, the effect of light spot cut-off can be formed after the light source is irradiated while the light mixing effect is achieved.

Description

Light mixing structure of lamp

Technical Field

The utility model relates to a lamps and lanterns field, concretely relates to mixed light structure of lamps and lanterns.

Background

The LED is a point light source, and when the LED is used for illumination, a lens needs to be disposed in front of the LED, so that the divergence angle of the LED light is reduced, and the light is emitted in a manner of being concentrated near the optical axis.

When present lens are doing the effect of mixing light, because the optics scheme of current window desk lamp all is monochromatic, either white, or colored, because of the light of every colour, its spectral composition is different, to same style lens, has different refracting indexes, leads to having obvious facula difference, hardly mixes the light.

In the prior art, in order to mix light of light sources with different colors, a light mixing structure, such as a bead surface, a scale and the like, is added on a lens, but the light mixing structure is difficult to satisfy the light mixing performance and the cut-off performance of a light spot at the same time.

Disclosure of Invention

The utility model provides a mixed light structure of lamps and lanterns when realizing mixing light, ensures the ending nature of facula.

For realizing the above technical effect, the technical scheme of the utility model as follows:

a light mixing structure of a lamp comprises a substrate provided with at least one LED light source part, at least one lens and a light mixing film;

the lens and the light mixing film are sequentially arranged along the emergent direction of the LED light source part respectively;

the light mixing film is provided with a plurality of microstructures;

the lens is arranged on the substrate and is a light-cutting lens in the short axis direction.

In the minor axis direction, the light that LED light source portion launched, through the narrow lens of cut-off type, form the effect that the facula was cut off. Meanwhile, the light mixing film has a plurality of microstructures and belongs to a micron-level light mixing film,

the effect of light spot cut-off cannot be influenced.

Further, the lenses correspond to the LED light source portions one to one.

Further, the lens is a divergent lens in the long axis direction. In the long axis direction, the LED light source parts with different color temperatures pass through the divergent lens and penetrate through the light mixing film, so that a good light mixing effect is achieved.

Further, the microstructure precision of the light mixing film is 0.004-0.01 mm.

Further, the lens comprises a light incident surface and a light emergent surface, the light incident surface is rectangular, and the light emergent surface is arc-shaped. The light incoming surface is rectangular, so that the light condensation effect of the LED light source is enhanced, and the light outgoing surface is arc-shaped, so that light can be uniformly mixed, and interference patterns and double images are prevented.

Furthermore, a supporting seat is arranged between the lens and the LED light source part, one end of the supporting seat is fixed with the lens, and the other end of the supporting seat is connected with the substrate.

Further, the LED light source parts are arranged on the substrate at equal intervals.

Further, the LED lamp comprises a lamp shade, and the light mixing film is arranged on one side of the lamp shade.

The beneficial effects of the utility model reside in that: through the light mixing film with the microstructure, the effect of light spot cut-off can be formed after the light source is irradiated while the light mixing effect is achieved.

Drawings

Fig. 1 is an explosion diagram of a light mixing structure of a lamp according to an embodiment of the present invention.

Fig. 2 is a schematic view of light emission of the light mixing structure in the short axis direction according to an embodiment of the present invention.

Fig. 3 is a schematic view of light emission of the light mixing structure in the long axis direction according to the embodiment of the present invention.

The specific drawings are identified as follows: the LED light source comprises a light source part 1, a substrate 2, a lens 3, a light incident surface 31, a light emergent surface 32, a light mixing film 4, a support seat 5 and a lampshade 6.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; to the field of

It will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

The technical scheme of the invention is further explained by combining the drawings and the embodiment.

The present embodiment provides a light mixing structure of a lamp, as shown in fig. 1, including a substrate 2 provided with at least one LED light source 1, at least one lens 3 and a light mixing film 4;

the lens 3 and the light mixing film 4 are respectively arranged in sequence along the emitting direction of the LED light source part 1;

the light mixing film 4 has a plurality of microstructures;

the lens 3 is a truncated lens in the minor axis direction, and the lens 3 is provided on the substrate 2.

Specifically, combine fig. 2 to show, on the minor axis direction, the light that LED light source portion 1 launched gets into the cut-off lens after, because the effect of cut-off lens changes the camber through changing the light-emitting cambered surface, makes it form the effect that the facula ends. Then, the light passes through the light mixing film 4 to realize the light mixing effect. Since the light mixing film 4 has a plurality of microstructures and belongs to the micron-level light mixing film 4, the micron-level light mixing film 4 does not affect the effect of light spot cutoff.

In one embodiment, in order to enhance the light spot cut-off effect, the lenses 3 are in one-to-one correspondence with the LED light source units 1, and are arranged along the emitting direction of the LED light source units 1.

More specifically, the LED light source section 1 includes an LED light source that emits red light, an LED light source that emits green light, an LED light source that emits blue light, and an LED light source that emits white light.

In one embodiment, as shown in fig. 3, the lens 3 is a divergent lens in the long axis direction. The red, green, blue and white LED light sources enter the divergent lens, the light rays are uniformly diffused by changing the angle of the emergent direction, and the light rays penetrate through the light mixing film 4 to increase the length of the light spot

And the light mixing effect among red light, green light, blue light and white light is further achieved.

In one embodiment, the lens 3 includes a light incident surface 31 and a light emitting surface 32. In order to condense the light, the light incident surface 31 is rectangular, and the light emitting surface 32 is arc-shaped, so that the emergent light can have a larger divergence angle, and can be uniformly mixed with the light, thereby eliminating high-brightness light spots and stray light, and preventing interference patterns, double images and the like.

In another embodiment, referring back to fig. 1, a support base 5 is disposed between the lens 3 and the LED light source 1. Wherein, the one end of supporting seat 5 is equipped with the mounting groove, and the income plain noodles of lens 3 passes through the screw fixation on the mounting groove, and the other end of supporting seat 5 passes through the screw fixation on the base plate 2 that is equipped with LED light source portion 1, and lens 3 is propped up to supporting seat 5, guarantees that the light of LED light source portion 1 normally gets into in lens 3. In addition, the LED light source parts 1 are arranged on the substrate 2 at equal intervals, so that the LED light sources with different color temperatures can emit uniformly in the light mixing structure, and a better light mixing effect is formed.

In addition, in order to facilitate the processing of the light mixing structure, the microstructure of the light mixing film 4 has a precision of 0.004mm to 0.01 mm. In the present embodiment, the precision of the light-mixing film 4 is 0.004mm, 0.007mm or 0.01 mm. The precision of the light-mixing film 4 is not limited herein.

In other embodiments, the lamp further comprises a lampshade 6, and the light mixing film 4 is arranged on one side of the lampshade 6. Specifically, the edges of the two sides of the lamp shade 6 are provided with film mounting slots (not shown in the figure), and the light mixing film 4 is clamped into the lamp shade 6 through the film mounting slots to form a fixing function.

According to the above embodiment, the LED light source unit 1 forms a light spot cut-off effect through the cut-off lens on the short axis, and the light emitted by the LED light sources with different color temperatures sequentially enters the divergent lens and the light mixing film 4 in the long axis direction, so as to achieve the light mixing effect of the LED light source. Meanwhile, as the light mixing film 4 is provided with a plurality of microstructures, light emitted by the LED light source is emitted through the light mixing film, and the cut-off property of light spots is always ensured. The light mixing structure can achieve the light mixing effect and can also enable the light source to form a light spot after being irradiated for stopping

And (5) effect.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The light mixing structure of the lamp is characterized by comprising a substrate provided with at least one LED light source part, at least one lens and a light mixing film;

the lens and the light mixing film are sequentially arranged along the emergent direction of the LED light source part respectively;

the light mixing film is provided with a plurality of microstructures;

the lens is arranged on the substrate and is a light-cutting lens in the short axis direction.

2. The light mixing structure of claim 1, wherein the lenses are in one-to-one correspondence with the LED light source portions.

3. The light mixing structure of claim 1, wherein the lens is a diverging lens in the long axis direction.

4. A light mixing structure of a lamp as claimed in claim 1, wherein the micro-structure precision of the light mixing film is 0.004-0.01 mm.

5. The light mixing structure of claim 1, wherein the lens includes a light incident surface and a light emitting surface, the light incident surface is rectangular, and the light emitting surface is arc-shaped.

6. The light mixing structure of claim 1, wherein a support is disposed between the lens and the LED light source, one end of the support is fixed to the lens, and the other end of the support is connected to the substrate.

7. The light mixing structure of claim 1, wherein the LED light source units are arranged on the substrate at equal intervals.

8. The light mixing structure of claim 1, comprising a lampshade, wherein the light mixing film is disposed on one side of the lampshade.

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