CN204879579U - Evenly glowing LED lights - Google Patents

Abstract

An LED lamp with uniform light emission comprises a light emitting circuit board (1), a plurality of LED light sources and optical lenses (2) arranged on the LED light sources, wherein the cross section of the bottom of each optical lens (2) is wavy to form a plurality of refraction surfaces (20), the center of the bottom of each optical lens (2) is provided with a containing cavity (21), and each LED light source is contained in the corresponding containing cavity (21); each optical lens (2) has a concave pit (22) in the center of the top. The utility model discloses a LED lamp can produce parallel, even effect of shining to form a luminance evenly, soft, the glaring lighting effect, avoided pointolite ubiquitous from central concentrated visual effect who shines away, specially adapted plane illumination's bill-board, the use such as signpost, the sign of instructing night.

Description

Evenly glowing LED lights

technical field

The utility model relates to the technical field of LED lamps, in particular to an LED lamp with uniform light emission.

Background technique

Due to the characteristics of low power consumption, high luminous efficiency and long life, LED lamps have become a lamp widely used in people's daily life. When in use, the LED light will produce strong glare, which is easy to irritate the user's eyes. In order to improve the glare problem of the LED lamp, the structure of the lamp body has been improved. For example, the Chinese utility model patent "LED Panel Light" with the announcement number CN203963550U (application number 201420197713.7), the disclosed LED panel light adopts the structure of a light source plate and a light guide plate, and the light guide plate can scatter the light emitted by the LED light source plate. , and then emitted outwards, thus forming a surface-emitting light source. However, only relying on the function of the light guide plate cannot sufficiently scatter the light emitted by the LED lamp beads, so that the brightness of the light irradiated from the light guide plate is inconsistent, which still damages the eyes of the user.

Utility model content

The technical problem to be solved by the utility model is to provide an LED lamp with parallel and uniform illumination effect, uniform, soft and glare-free illumination brightness for the above-mentioned prior art.

The technical scheme adopted by the utility model to solve the above-mentioned problems is: a uniformly luminous LED lamp, including a light-emitting circuit board, a plurality of LED light sources arranged on the light-emitting circuit board in matrix form, and a plurality of LED light sources arranged on each LED light source. The optical lens is characterized in that: the cross-section of the bottom of each optical lens is wavy to form a plurality of refraction surfaces, the center of the bottom of the optical lens has an upward concave cavity, and each LED light source is accommodated in the corresponding cavity cavity;

Moreover, the center of the top of each optical lens is depressed downward to form a pit.

The bottom outer edge of each optical lens has a circle of extending edges extending downward.

Optionally, the cross-section of the bottom of the optical lens is arc-shaped and wavy.

Optionally, the bottom of the optical lens has a V-shaped wave in cross section.

Compared with the prior art, the utility model has the advantages that: in the uniformly luminous LED lamp, the pits on the top of the optical lens cooperate with the wave-shaped cross-section design at the bottom to form multiple refraction surfaces, and each LED light source passes through this lamp. Invented a specially designed optical lens, which changes the refraction angle of the light emitted by the LED light source located in the center of the bottom of the optical lens, so that the light rays overlap in a straight line after being refracted by each refraction surface, and appear parallel light on the close-range irradiation surface, which can produce parallel, Uniform illumination effect, thereby forming a uniform brightness, soft, glare-free lighting effect, avoiding the visual effect of point light sources that are generally irradiated from the center, especially suitable for billboards illuminated by planes, road signs for night instructions, Logo etc. used.

Description of drawings

Fig. 1 is a perspective view of an LED lamp in Embodiment 1 of the present utility model.

Fig. 2 is a perspective view of the optical lens in Embodiment 1 of the present utility model.

Fig. 3 is a cross-sectional view of the optical lens in Embodiment 1 of the utility model.

Fig. 4 is a sectional view of the optical lens in the second embodiment of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

Embodiment one:

As shown in Figures 1 to 3, it is a preferred embodiment of the present invention. The uniformly luminous LED lamp includes a light-emitting circuit board 1 , multiple LED light sources (not shown in the figure), and multiple optical lenses 2 .

Wherein, a plurality of LED light sources are arranged on the light-emitting circuit board 1 in a matrix form, and an optical lens 2 is provided on each LED light source.

In this embodiment, the optical lens 2 is generally circular, and the outer edge of the bottom of each optical lens 2 has a circle of extending edges 23 extending downward, so that the optical lens 2 can cover the LED light source therein.

The cross-section of the bottom of each optical lens 2 is wavy to form a plurality of refraction surfaces 20. The center of the bottom of the optical lens 2 has an upwardly concave cavity 21, and each LED light source is accommodated in the corresponding cavity 21. .

Moreover, the center of the top of each optical lens 2 is depressed downward to form a pit 22 . As shown in FIG. 3 , the cross section of the bottom of the optical lens 2 is arc-shaped and wavy, that is, the refracting surface 20 is arc-shaped.

Through the wavy multiple refraction surfaces 20 and the concave 22 at the top center of the optical lens 2, the light emitted by the LED light source is refracted and appears parallel light on the close-range irradiation surface, which can produce parallel and uniform irradiation effects. In this way, a lighting effect with uniform brightness, softness, and no glare is formed, which avoids the common visual effect of point light sources irradiating from the center, and thus achieves a good lighting effect of LED light sources.

Embodiment two:

As shown in FIG. 4 , it is a cross-sectional view of the optical lens in the second embodiment. The difference between this embodiment and the first embodiment is that the cross section of the bottom of the optical lens 2 is V-shaped, that is, the refracting surface 20 is flat.

Claims (4)

1. A uniformly luminous LED lamp, comprising a light-emitting circuit board (1), a plurality of LED light sources arranged in a matrix on the light-emitting circuit board (1), and a plurality of optical lenses (2) arranged on each LED light source , is characterized in that: the section of the bottom of each optical lens (2) is wavy to form a plurality of refraction surfaces (20), and the center of the bottom of the optical lens (2) has an upward concave cavity (21), each The LED light source is accommodated in the corresponding cavity (21); Moreover, the center of the top of each optical lens (2) is depressed downwards to form a pit (22). 2. The uniformly luminous LED lamp according to claim 1, characterized in that: the outer edge of the bottom of each optical lens (2) has a circle of extended edges (23) extending downward. 3. The uniformly luminous LED lamp according to claim 1 or 2, characterized in that: the cross-section of the bottom of the optical lens (2) is arc-shaped and wavy. 4. The uniformly luminous LED lamp according to claim 1 or 2, characterized in that: the cross-section of the bottom of the optical lens (2) is V-shaped and wavy.