CN215982374U

CN215982374U - LED secondary optical lens and double-sided display LED screen assembly

Info

Publication number: CN215982374U
Application number: CN202122280727.8U
Authority: CN
Inventors: 刘明宇; 钟显富
Original assignee: Shenzhen Ex Lighting Technology Holdings Co Ltd
Current assignee: Shenzhen Ex Lighting Technology Holdings Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-08
Anticipated expiration: 2031-09-18

Abstract

The utility model relates to the technical field of optical illumination, in particular to an LED secondary optical lens and a double-sided display LED screen assembly, wherein the LED secondary optical lens comprises: an incident surface; the reflecting surface is arranged above the incident surface and comprises a first reflecting surface and a second reflecting surface, the first reflecting surface is connected with the second reflecting surface, the first reflecting surface and the second reflecting surface form an upward convex cambered surface from a position far away from a connecting position to the connecting position, and a bilateral symmetry structure is formed at the connecting position; and the emergent surfaces are arranged on two sides of the reflecting surface. The upper convex cambered surface is formed at the joint by keeping away from the joint through the two reflecting surfaces, the LED light source is divided into front and back light beams, the front and back light emitting effects are achieved, the number of the LED light sources of the display screen is greatly reduced, the power consumption of the controller is reduced, the central brightness of the LED light source is improved, and the visual distance of the display screen is increased.

Description

LED secondary optical lens and double-sided display LED screen assembly

Technical Field

The utility model relates to the technical field of optical illumination, in particular to an LED secondary optical lens and a double-sided display LED screen assembly.

Background

The LED light source has excellent quality as a product of a new application field, but the light emitting direction is single, and the irradiation area is limited, so how to change the irradiation angle of the light source and increase the irradiation area in practical application, thereby controlling the irradiation range in different directions in one plane is a problem to be solved in the industry. The current LED dot matrix screen directly displays pixel points by light emitted by an LED, so that the LED cannot emit light from the back, and the LED light sources are arranged on the front face and the back face to display on the two faces.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides an LED secondary optical lens and a double-sided display LED screen assembly, which divide a light beam into a front part and a rear part by utilizing a reflecting surface to achieve the effect of front-rear light-emitting double-sided display.

In order to achieve the purpose, the utility model provides the following technical scheme: an LED secondary optical lens comprising: an incident surface; the reflecting surface is arranged above the incident surface and comprises a first reflecting surface and a second reflecting surface, the first reflecting surface is connected with the second reflecting surface, the first reflecting surface and the second reflecting surface form an upward convex cambered surface from a position far away from a connecting position to the connecting position, and a bilateral symmetry structure is formed at the connecting position; and the emergent surfaces are arranged on two sides of the reflecting surface.

More specifically, in the above technical solution, the incident surface includes a first incident surface and incident end surfaces, the first incident surface is an arc surface, and the incident end surfaces are located at two ends of the first incident surface.

More specifically, in the above technical solution, the LED secondary optical lens further includes a base, the base is disposed below the emergent surface, and an accommodating cavity is formed in the middle of the base.

More specifically, in the above technical solution, the first reflecting surface and the second reflecting surface are spherical surfaces or ellipsoidal surfaces.

More specifically, in the above technical solution, the exit surface is a texture-drying surface.

The utility model further provides a double-sided display LED screen assembly which comprises the LED secondary optical lens, an LED light source and a lamp holder, wherein the LED light source is arranged in the accommodating cavity, and the LED secondary optical lens is arranged above the lamp holder.

More specifically, in the above technical solution, the base is provided with a fixing hole.

More specifically, in the above technical solution, the outer dimension of the accommodating cavity is adapted to the size of the LED light source.

More specifically, in the above technical solution, the center of the LED light source is located below the joint of the first reflecting surface and the second reflecting surface.

The utility model further provides a double-sided display LED screen assembly which comprises the LED secondary optical lens, an LED light source and a lamp holder, wherein the LED secondary optical lens is arranged above the lamp holder, and the LED light source is positioned in the LED secondary optical lens.

Compared with the prior art, the utility model has the beneficial effects that: the LED secondary optical lens comprises an LED light source, a connecting part, two reflecting surfaces, an upper convex cambered surface and a lower convex cambered surface, wherein the two reflecting surfaces are arranged above the incident surface of the LED secondary optical lens, the upper convex cambered surface is formed from the position far away from the connecting part to the connecting part, a bilateral symmetry structure is formed, the LED light source is divided into a front light beam and a rear light beam through the structure and is refracted to the emergent surface, the effects that one LED light source emits light and two pixel points are displayed in the front and the rear in the application of the LED display screen are achieved, the defect that one normal LED light source can only display one pixel point is overcome, the quantity of the LED light sources of the display screen is greatly reduced, and the power consumption of a controller is reduced. And the light source is uniformly refracted through the bilaterally symmetrical reflecting surfaces, so that the central brightness of the light source and the visual distance of the display screen are improved.

Drawings

FIG. 1 is a schematic diagram of the optical path of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic top view of the present invention;

in the figure: 1. an incident surface; 101. a first incident surface; 102. an incident end face; 2. a reflective surface; 201. a first reflective surface; 202. a second reflective surface; 3. an accommodating chamber; 4. an exit surface; 5. a base; 6. an LED light source; 7. a lamp socket; 8. and (7) fixing holes.

Detailed Description

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 given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1-3, the present invention provides an LED secondary optical lens, including: an incident surface 1; the reflecting surface 2 is arranged above the incident surface 1, the reflecting surface 2 comprises a first reflecting surface 201 and a second reflecting surface 202, the first reflecting surface 201 is connected with the second reflecting surface 202, the first reflecting surface 201 and the second reflecting surface 202 form an upward convex cambered surface from a position far away from a connecting position to the connecting position, the upward convex cambered surface can be a smooth cambered surface or a cambered surface-like structure formed by connecting multiple sections of straight lines, and a bilateral symmetrical structure is formed at the connecting position; and emission surfaces 4 provided on both sides of the reflection surface 2. Be provided with two plane of reflection 2 above LED secondary optical lens's incident surface 1, form the epirelief cambered surface to the junction by keeping away from the junction, form the structure of bilateral symmetry similar butterfly wing shape, divide into the front and back light beam with LED light source 6 through this structure and refract to emitting surface 4, reach in the LED display screen application and give out light with an LED light source 6 and show the effect of two pixel points in the front and back, solve the defect that normal LED light source 6 can only show a pixel point, the LED light source 6 quantity of display screen has significantly reduced, the consumption of controller has been reduced, and through the plane of reflection 2 of bilateral symmetry with the even refraction of light source, the central luminance of light source and the visible distance of display screen have been improved.

Optionally, the incident surface 1 includes a first incident surface 101 and an incident end surface 102, where the first incident surface 101 is an arc surface, and the incident end surface 102 is located at two ends of the first incident surface 101. The first incident surface 101 is set to be an arc surface, and the incident end surfaces 102 are arranged at two ends of the arc surface, so that the incident surface 1 forms a cylinder-like structure, thereby reducing the refraction of the light beam of the LED light source 6 in the transmission process, reducing the divergence degree of the light beam, and avoiding the loss of the light beam.

Optionally, the LED secondary optical lens further includes a base 5, the base 5 is disposed below the exit surface 4, and the middle of the base 5 is formed with an accommodating cavity 3. In production, the base 5 can be used for sucking or clamping, the secondary optical lens is automatically mounted, and the production efficiency and the productivity are obviously improved.

Optionally, the first reflecting surface 201 and the second reflecting surface 202 are spherical surfaces or ellipsoidal surfaces, so that the reflected light beams are uniformly distributed, and are favorable for receiving light to form circular light spots, so that the double-sided display LED screen provided with the LED secondary optical lens is used for manufacturing dot matrixes, patterns, figures and the like, the first reflecting surface 201 and the second reflecting surface 202 can be integrally formed or welded, and the utility model is not limited in particular.

Optionally, the exit surface 4 is a pattern-drying processing surface, and the surface intensity of the exit surface 4 is increased through pattern-drying processing, so that the adaptability of the LED light source 6 is improved.

The utility model further provides a double-sided display LED screen assembly which comprises an LED secondary optical lens, an LED light source 6 and a lamp holder 7, wherein the LED light source 6 is arranged in the accommodating cavity 3, the LED secondary optical lens is arranged above the lamp holder 7, and the LED secondary optical lens is arranged on the lamp holder 7 to form a complete double-sided display LED screen.

Optionally, the base 5 is provided with fixing holes 8. The fixing hole 8 is provided with a fixing part, so that the LED secondary optical lens can be more firmly arranged on the lamp holder 7.

Optionally, the overall dimension of the accommodating cavity 3 is matched with the size of the LED light source 6, the LED light source 6 can be stably arranged in the accommodating cavity 3, and the center of the accommodating cavity 3 is coaxially arranged with the joint of the first reflecting surface 201 and the second reflecting surface 202, so that the emitted light beams are uniformly distributed to form a circular light spot, the loss of the light beams is reduced, and the utilization efficiency and the brightness of the light are improved.

Optionally, the center of the LED light source 6 is located below the joint of the first reflecting surface 201 and the second reflecting surface 202, and the light beam of the LED light source 6 can be uniformly distributed to the front and rear emitting surfaces 4.

The utility model further provides a double-sided display LED screen assembly which comprises an LED secondary optical lens, an LED light source 6 and a lamp holder 7, wherein the LED secondary optical lens is arranged above the lamp holder 7, the LED light source 6 is positioned in the LED secondary optical lens, and the lamp holder 7 is directly connected with the LED secondary optical lens.

Optionally, the center of the LED light source is located below the joint of the first reflecting surface and the second reflecting surface.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An LED secondary optical lens, comprising:

an incident surface;

the reflecting surface is arranged above the incident surface and comprises a first reflecting surface and a second reflecting surface, the first reflecting surface is connected with the second reflecting surface, the first reflecting surface and the second reflecting surface form an upward convex cambered surface from a position far away from a connecting position to the connecting position, and a bilateral symmetry structure is formed at the connecting position;

and the emergent surfaces are arranged on two sides of the reflecting surface.

2. The LED secondary optical lens of claim 1, wherein the incident surface comprises a first incident surface and an incident end surface, the first incident surface is a cambered surface, and the incident end surfaces are located at two ends of the first incident surface.

3. The LED secondary optical lens of claim 1, further comprising a base disposed below the exit surface, wherein a cavity is formed in the middle of the base.

4. The LED secondary optical lens of claim 1, wherein the first and second reflective surfaces are spherical or ellipsoidal.

5. The LED secondary optical lens of claim 1 wherein the exit surface is a satin finish.

6. A dual-sided display LED panel assembly comprising an LED secondary optical lens as recited in claim 3, wherein said dual-sided display LED panel assembly further comprises an LED light source and a lamp holder, said LED light source being disposed in said receiving cavity, said LED secondary optical lens being disposed above said lamp holder.

7. The double-sided display LED screen assembly of claim 6, wherein the base is provided with fixing holes.

8. The double-sided display LED panel assembly as recited in claim 6, wherein the receiving cavity has dimensions adapted to the size of the LED light source.

9. The double-sided display LED panel assembly of claim 6, wherein the LED light source is centered below the junction of the first reflective surface and the second reflective surface.

10. A dual-sided display LED panel assembly comprising an LED secondary optical lens as recited in any one of claims 1-2 and 4-5, wherein the dual-sided display LED panel assembly further comprises an LED light source and a lamp holder, the LED secondary optical lens is disposed above the lamp holder, and the LED light source is located inside the LED secondary optical lens.