CN112594642A

CN112594642A - Colorful LED wall washing lamp

Info

Publication number: CN112594642A
Application number: CN202011471950.4A
Authority: CN
Inventors: 黄荣丰; 陈志曼; 何子俊
Original assignee: Guangzhou Yajiang Photoelectric Equipment Co Ltd
Current assignee: Guangzhou Yajiang Photoelectric Equipment Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-04-02

Abstract

The invention provides a color LED wall washing lamp which comprises an asymmetric parabolic reflector, a color LED plane light source and a frosted sheet, wherein the bottom of the asymmetric parabolic reflector and the color LED plane light source are positioned on the same plane substrate, and the frosted sheet is parallel to a light-emitting surface of the color LED plane light source reflected by the asymmetric parabolic reflector. According to the invention, the colored LED wall washer lamp with simple structure, low cost, high color rendering index, high reflection efficiency and uniform color mixing is obtained through the asymmetric parabolic reflector, the frosted sheet and the colored LED plane light source.

Description

Colorful LED wall washing lamp

Technical Field

The invention relates to the technical field of illumination, in particular to a color LED wall washer lamp.

Background

With the improvement of living standard and the increasing requirements for living environment, the application of the wall washing lamp is more and more extensive in life, for example, the wall washing lamp is commonly used for outdoor buildings such as markets, bridges, parks and the like. At present, most of wall washing lamps in the market adopt four-in-one lamp beads of red, green, blue and white as light sources, and a Total Internal Reflection (TIR) lens at a required light-emitting angle is added to achieve the final light-emitting effect of the wall washing lamp. However, such wall washers have many disadvantages: for example, the color rendering index of the four-in-one lamp bead is generally low, and the color of the illuminated object cannot be really restored; when the lamp irradiates an object, the light emitting surface of the lamp is parallel to the irradiated object; TIR lenses are generally not good for color mixing of color light beads. Therefore, the wall washing lamp has low color rendering index, low reflection efficiency and poor color mixing, and becomes a technical problem to be solved at present.

Disclosure of Invention

The invention provides a color LED wall washer lamp, which is used for solving the problems of low color rendering index, low reflection efficiency and poor color mixing of the wall washer lamp in the prior art.

The invention provides a color LED wall washer lamp, which comprises: the asymmetrical parabolic reflector comprises an asymmetrical parabolic reflector, a color LED plane light source and a frosted sheet, wherein the bottom of the asymmetrical parabolic reflector and the color LED plane light source are arranged on the same plane substrate, and the frosted sheet is parallel to a light-emitting surface of the color LED plane light source reflected by the asymmetrical parabolic reflector.

Optionally, the color LED planar light source emits 120-degree lambertian cosine-type distributed light, and the light is reflected by the asymmetric parabolic light reflecting bowl and then exits the light emitting surface in the form of parallel light.

Optionally, the size of the light emitting surface determines the size of the sanding sheet; and determining the angle of the sanding sheet according to the light emergent effect of the light emergent surface.

Optionally, the dimensions of the asymmetric parabolic reflector comprise: the length is 200 mm, the width is 50-60mm, and the height is 50-60 mm.

Optionally, the reflector comprises a fixed detent and a fixed hole site.

Optionally, the asymmetric parabolic light reflecting bowl is printed using a 3D printer.

Optionally, the color LED planar light source includes a plurality of color LED lamp beads, and the plurality of color LED lamp beads are uniformly distributed to form a matrix-shaped color LED planar light source.

Optionally, the plurality of colored LED lamp beads includes 288 colored LED lamp beads.

Optionally, the frosted sheet further adjusts the color mixture and the angle of the light rays of the light emitting surface.

Optionally, the light irradiation direction of the light emitting surface is perpendicular to the color LED planar light source.

According to the technical scheme, the color LED wall washer lamp comprises: the bottom parts of the color LED plane light source and the asymmetrical parabolic light reflecting bowl are positioned on the same plane substrate, and the frosted sheet is parallel to the light emitting surface of the color LED plane light source reflected by the asymmetrical parabolic light reflecting bowl. According to the invention, the colored LED wall washer lamp with simple structure, low cost, high color rendering index, high reflection efficiency and uniform color mixing is obtained through the asymmetric parabolic reflector, the frosted sheet and the colored LED plane light source.

Drawings

Fig. 1 is a schematic structural diagram of a color LED wall washer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an asymmetric parabolic reflector according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 shows a schematic structural diagram of a color LED wall washer according to an embodiment of the present invention, and as shown in fig. 1, the wall washer according to the embodiment includes: the LED light source comprises an asymmetric parabolic reflector 11, a color LED planar light source 12 and a frosted sheet 13.

In a specific embodiment, the bottom of the asymmetric parabolic reflector 11 and the color LED planar light source 12 are located on the same planar substrate, and the frosted sheet 13 is parallel to the light-emitting surface of the color LED planar light source 12 reflected by the asymmetric parabolic reflector 11.

In the specific embodiment, the color LED planar light source 12 is horizontally disposed on the planar substrate without being vertically disposed or requiring an additional fixing device, the bottom of the asymmetric parabolic reflector 11 includes a fixed position-locking portion and a fixed hole, and the bottom of the asymmetric parabolic reflector 11 is fixed on the planar substrate of the color LED planar light source 12 by using the fixed position-locking portion and the fixed hole. The color LED plane light source 12 comprises a plurality of color LED lamp beads, the color LED lamp beads emit light rays distributed in a 120-degree Lambert cosine type manner, after the light rays are reflected by the asymmetric parabolic light reflecting bowl 11, the light rays on one side of the color LED lamp beads are totally reflected to the other side of the color LED lamp beads, the light rays are emitted from the light emitting surface in a parallel light manner instead of the original Lambert cosine type light emitting manner, the color LED plane light source 12 is convenient to process, the precision is easy to control, the light source heat dissipation is easy to process, and the cost is saved.

The Lambert cosine law expresses that the change of the illumination radiation intensity along with an included angle theta between the observation direction and the normal line of the surface source complies with the cosine law, the theta comprises a 120-degree range, and the Lambert cosine law is shown as a formula (1):

I＝I cosθ (1)

in the embodiment, the color LED planar light source 12 is reflected by the asymmetric parabolic reflector 11 to form a light emitting surface, the frosted sheet 13 with a certain size and a certain angle is disposed at a position parallel to the light emitting surface, the frosted sheet 13 makes light become uniform and soft, and the color mixing and angle of the light emitting surface are further adjusted, so that the color mixing and angle of the light emitting surface are further improved. The size of the sanding sheet 13 is determined according to the size of the light-emitting surface, and because the final light-emitting effects of the sanding sheets with different angles are different, the angle of the sanding sheet 13 is determined according to the light-emitting effect of the light-emitting surface.

In a specific embodiment, the dimensions of the asymmetric parabolic reflector 11 include: the length is 200-300mm, the width is 50-60mm, the height is 50-60mm, the length is 249mm, the width is 56mm, the height is 56mm, the asymmetric parabolic reflector 11 can be printed by a 3D printer, and can also be manufactured by a mould, wherein different printing materials such as metal, ceramic, plastic, sand and the like are filled in the 3D printer, after the printer is connected with a computer, the printing materials can be superposed layer by layer through the control of the computer, and finally, a blueprint on the computer is changed into a real object, so the printing materials of the asymmetric parabolic reflector are put into the 3D printer, and the asymmetric parabolic reflector with a proper size can be printed.

In a specific embodiment, the color LED planar light source 12 includes a plurality of color LED lamp beads, the color LED planar light source 12 may preferably include 288 color LED lamp beads, the plurality of color LED lamp beads are arranged on the same planar substrate according to a certain rule, and the plurality of color LED lamp beads are uniformly arranged to form a multi-point light-emitting matrix color LED planar light source 12.

In the specific embodiment, the light irradiation direction of the light emitting surface is perpendicular to the color LED planar light source 12, the color LED planar light source 12 does not need to be vertically placed, an additional fixing device is not needed, and the light can be irradiated on an object perpendicular to the placing position of the color LED planar light source 12 only by being horizontally placed, so that the irradiation ranges in the horizontal direction and the vertical direction are large, and the real color of the irradiated object can be well restored.

Fig. 2 shows a schematic structural diagram of an asymmetric parabolic reflector according to an embodiment of the present invention, and as shown in fig. 2, the asymmetric parabolic reflector of this embodiment includes an asymmetric parabolic reflector surface 21, a hole 22, and a detent 23.

The reflecting bowl adopts the design of asymmetric parabola type curved surface, can more effectively reduce the light loss, can totally reflect the light on one side of many colored LED lamp pearls to the another side to the form of parallel light goes out the light on the play plain noodles, as shown in fig. 2, fixed hole site 22 and fixed screens 23 can fix asymmetric parabola type reflecting bowl on the plane base plate of many colored LED lamp pearls, asymmetric parabola type reflecting surface 21 light-emitting is even, the colour mixture is good, reflection efficiency is higher, energy loss is few, high-usage, simple structure, and convenient to install.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Those of ordinary skill in the art will understand that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.

Claims

1. A colored LED wall washer, characterized in that includes: an asymmetric parabolic reflector, a color LED planar light source and a frosted sheet,

the bottom of the asymmetric parabolic reflector and the color LED plane light source are positioned on the same plane substrate, and the frosted sheet is parallel to the light-emitting surface of the color LED plane light source reflected by the asymmetric parabolic reflector.

2. The wall washer lamp as claimed in claim 1, further comprising:

the color LED plane light source emits 120-degree Lambert cosine-shaped distributed light rays, and the light rays are reflected by the asymmetric parabolic reflecting bowl and then emit light on the light emitting surface in a parallel light mode.

3. The wall washer lamp as claimed in claim 1, further comprising:

determining the size of the sanding sheet according to the size of the light emergent surface;

and determining the angle of the sanding sheet according to the light emergent effect of the light emergent surface.

4. The wall washer lamp as claimed in any one of claims 1 or 2, wherein the asymmetric parabolic reflector has dimensions comprising: the length is 200 mm, the width is 50-60mm, and the height is 50-60 mm.

5. The wall washer lamp as claimed in any one of claims 1 or 2, wherein said asymmetric parabolic reflector comprises fixed detents and fixed hole locations.

6. The wall washer light of claim 4, wherein the asymmetric parabolic reflector is printed using a 3D printer.

7. The wall washer as claimed in claim 1, wherein the color LED planar light source comprises a plurality of color LED lamp beads, and the plurality of color LED lamp beads are uniformly distributed to form a matrix-shaped color LED planar light source.

8. The wall washer lamp as claimed in claim 6, wherein the plurality of colored LED lamp beads comprises 288 colored LED lamp beads.

9. The wall washer lamp as claimed in claim 1, further comprising:

the frosting piece further adjusts the mixed color and the angle of the light rays on the light emergent surface.

10. The wall washer lamp as claimed in claim 1, further comprising:

the light irradiation direction of the light emitting surface is perpendicular to the color LED plane light source.