CN216868235U

CN216868235U - Lamp body capable of emitting light uniformly

Info

Publication number: CN216868235U
Application number: CN202220532946.2U
Authority: CN
Inventors: 周成兵
Original assignee: Sichuan City Guangjiang Technology Co ltd
Current assignee: Sichuan City Guangjiang Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-01
Anticipated expiration: 2032-03-11

Abstract

The utility model relates to the field of lighting equipment, in particular to a lamp body capable of emitting light uniformly. A lamp body capable of emitting light uniformly comprises a lamp shell, wherein a PCB and a first light guide plate are arranged in the lamp shell from top to bottom, a plurality of LED light-emitting elements are arranged on the PCB, a plurality of concave lenses are arranged on the first light guide plate, each concave lens corresponds to one LED light-emitting element, and the light-emitting center of each LED light-emitting element is located at the focus position of the corresponding concave lens. According to the lamp body capable of emitting light uniformly, the lamp shell, the PCB, the first light guide plate, the LED light-emitting element, the concave lens and the like are matched, the PCB is electrified, the LED light-emitting element emits light, light rays are integrated into uniform parallel light after passing through the concave lens and then are emitted out through the light guide plate, and the lamp body has the advantages of being simple in structure, free of granular sensation and uniform in light emission.

Description

Lamp body capable of emitting light uniformly

Technical Field

The utility model relates to the field of lighting equipment, in particular to a lamp body capable of emitting light uniformly.

Background

In lighting equipment, at present, LEDs are mainly used as the main stream, and have the advantages of small size, low power consumption, high brightness, short light-emitting response time and the like. However, the brightness uniformity near the light incident surface of the LED light guide plate is not good, which causes a granular feeling and affects the illumination effect. The light emitted by the common LEDs is lambertian light distribution, the light emitting angle is relatively small at 120 degrees, the central light intensity is large, the light rays emitted by two adjacent LEDs are still separated when entering the light guide plate in the light distribution shape and are not overlapped, so that the brightness uniformity near the light incident surface of the light guide plate is poor, and the particle sense generally known is generated.

Therefore, it is necessary to design a lamp body with uniform light emission, which can eliminate the granular sensation and improve the illumination effect.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a lamp body with uniform light emission.

The utility model is realized by the following technical scheme: a lamp body capable of emitting light uniformly comprises a lamp shell, wherein a PCB and a first light guide plate are arranged in the lamp shell from top to bottom, a plurality of LED light-emitting elements are arranged on the PCB, a plurality of concave lenses are arranged on the first light guide plate, each concave lens corresponds to one LED light-emitting element, and the light-emitting centers of the LED light-emitting elements are located at the focus positions of the corresponding concave lenses.

In order to better realize the utility model, the lamp shell is provided with a light homogenizing sheet positioned below the first light guide plate, the top surface of the light homogenizing sheet is provided with wave grains, and the bottom surface is flat and smooth.

In order to better realize the utility model, the distance between the wave lines and the first light guide plate is 0.2 mm-0.5 mm.

In order to better realize the utility model, the distance between the wave lines and the first light guide plate is 0.3 mm.

In order to better realize the utility model, a second light guide plate is closely attached to the lower surface of the light homogenizing sheet.

In order to better realize the utility model, a brightness enhancement film is arranged on the lower surface of the second light guide plate.

In order to better realize the utility model, a fluorescent powder glue layer is arranged on the brightness enhancement film.

In order to better realize the utility model, the lamp shell is made of PVC material.

Compared with the prior art, the utility model at least has the following advantages and beneficial effects: according to the lamp body capable of emitting light uniformly, the lamp shell, the PCB, the first light guide plate, the LED light-emitting element, the concave lens and the like are matched, the PCB is electrified, the LED light-emitting element emits light, light rays are integrated into uniform parallel light after passing through the concave lens and then are emitted out through the light guide plate, and the lamp body has the advantages of being simple in structure, free of granular sensation and uniform in light emission.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view showing a structure of a lamp body of the present invention which emits uniform light;

in the figure, 1-lamp body, 2-PCB board, 3-LED light-emitting component, 4-concave lens, 5-first light guide plate, 6-even light piece, 7-wave line, 8-second light guide plate.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the utility model. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists independently, B exists independently, and A and B exist simultaneously; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.

It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may not be shown in unnecessary detail to avoid obscuring the examples.

As shown in fig. 1, the lamp body with uniform light emission of the present invention includes a lamp housing 1, a PCB 2 and a first light guide plate 5 are mounted in the lamp housing 1 from top to bottom, a plurality of LED light emitting elements 3 are disposed on the PCB 2, a plurality of concave lenses 4 are disposed on the first light guide plate 5, each concave lens 4 corresponds to one LED light emitting element 3, and a light emitting center of the LED light emitting element 3 is located at a focal point of the corresponding concave lens 4. According to the lamp body capable of emitting light uniformly, the lamp shell 1, the PCB 2, the first light guide plate 5, the LED light-emitting elements 3, the concave lens 4 and the like are matched, the PCB 2 is electrified to enable the LED light-emitting elements 3 to emit light, light rays are integrated into uniform parallel light after passing through the concave lens 4 and then emitted out through the light guide plate, and the lamp body capable of emitting light uniformly has the advantages of being simple in structure, free of granular sensation and uniform in light emission.

Preferably, the lamp housing 1 is provided with a light homogenizing sheet 6 located below the first light guide plate 5, the top surface of the light homogenizing sheet 6 is provided with wave lines 7, and the bottom surface is flat and smooth. The light homogenizing sheet 6 is used for enlarging the light emitting angle of the light source and changing the light distribution shape of the light source so as to improve the uniformity of the light incident surface of the second light guide plate 8. The light entering the first light guide plate 5 is refracted by the wavy lines 7 to change the light distribution shape of the light source, so that the light is uniformly scattered, and the light emitted from the second light guide plate 8 is quite uniform and has no granular sensation. The light homogenizing sheet 6 is made of a PC material or a transparent PMMA material.

Preferably, the distance between the wave-shaped grains 7 and the first light guide plate 5 is 0.2 mm-0.5 mm. Further preferably, the distance between the wavy lines 7 and the first light guide plate 5 is 0.3 mm.

Preferably, a second light guide plate 8 is closely attached to the lower surface of the light uniformizing sheet 6. A brightness enhancement film is arranged on the lower surface of the second light guide plate 8. More preferably, a phosphor glue layer is arranged on the brightness enhancement film. The fluorescent powder glue layer further enables the brightness of light emitted from the second light guide plate 8 to be uniform, and the light emitting effect is good.

Preferably, the lamp housing 1 is made of PVC material.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications may be made to the embodiments described above, or equivalents may be substituted for some of the features described. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A lamp body capable of emitting light uniformly is characterized in that: the LED lamp comprises a lamp shell (1), wherein a PCB (2) and a first light guide plate (5) are arranged in the lamp shell (1) from top to bottom, a plurality of LED light-emitting elements (3) are arranged on the PCB (2), a plurality of concave lenses (4) are arranged on the first light guide plate (5), each concave lens (4) corresponds to one LED light-emitting element (3), and the light-emitting center of each LED light-emitting element (3) is located at the focus position of the corresponding concave lens (4).

2. A lamp body of uniform luminous flux as defined in claim 1, wherein: the lamp shell (1) is provided with a light homogenizing sheet (6) positioned below the first light guide plate (5), the top surface of the light homogenizing sheet (6) is provided with wave lines (7), and the bottom surface is flat and smooth.

3. A lamp body of uniform luminous flux as defined in claim 2, wherein: the distance between the wave lines (7) and the first light guide plate (5) is 0.2-0.5 mm.

4. A lamp body of uniform luminous flux as defined in claim 3, wherein: the distance between the wave lines (7) and the first light guide plate (5) is 0.3 mm.

5. A lamp body of uniform luminous flux as defined in claim 2, wherein: and a second light guide plate (8) is closely attached to the lower surface of the light homogenizing sheet (6).

6. A lamp body of uniform lighting as defined in claim 5, wherein: and a bright enhancement film is arranged on the lower surface of the second light guide plate (8).

7. A lamp body of uniform luminous flux as defined in claim 6, wherein: and a fluorescent powder glue layer is arranged on the brightness enhancement film.

8. A lamp body of uniform luminous flux as defined in claim 1, wherein: the lamp shell (1) is made of PVC materials.