CN103968265A - lighting device - Google Patents

Abstract

The invention discloses a lighting device, which comprises a light source component and a light screen, wherein the light source component and the light screen are arranged in sequence from top to bottom; the light source assembly comprises a first substrate, and a plurality of light sources are arranged on the bottom surface of the first substrate at intervals; the shading plate comprises a second substrate, a plurality of openings are formed in the top surface of the second substrate, each light source corresponds to the center of one opening, side plates extending to the light sources are further arranged at the edges of the openings, and the included angle between each side plate and the second substrate is larger than 90 degrees; a gap is formed between the side plate and the first substrate, and the second substrate is a convex surface as a whole. The lighting device provided by the invention can reflect the light scattered in the non-irradiation area and emitted by the light source back to the irradiation area. Meanwhile, the light source can be recycled, the reduction of illumination intensity is reduced, and the anti-glare function is further realized.

Description

lighting device

technical field

The invention relates to the field of lighting fixtures, in particular to a lighting device.

Background technique

At present, there are many lighting devices on the market, and there are various types of light sources used in the lighting devices. Traditionally, incandescent lamps are used. Because light-emitting diodes have energy-saving, power-saving, and environmental protection effects, as the technology becomes more and more stable, there has been a tendency to gradually replace traditional incandescent lamps in recent years.

However, light-emitting diodes are directional light sources, and the opening angle of directional light sources is small. It is necessary to use a reflector to increase the light opening angle, and then use a diffuser to soften the light. Whether it is a light-emitting diode or other For light sources, the brightness will gradually decrease due to the larger the opening angle of the light source.

Therefore, for large-area irradiated objects, such as kanban or plant illumination, the illuminance of the area farther away from the light-emitting area will be significantly lower, especially the effect of plant illumination is more obvious, often causing plants to be affected by light. The uneven cover affects the growth period.

Therefore, the non-uniform brightness and poor light source recovery rate of the lighting device in the prior art are difficult problems to solve.

Contents of the invention

The invention provides an illuminating device to solve the technical defects of the existing illuminating devices.

A lighting device provided by the present invention, the lighting device includes a light source assembly and a shading plate, which are arranged sequentially from top to bottom;

The light source assembly includes a first substrate, and a plurality of light sources are arranged at intervals on the bottom surface of the first substrate;

The shading plate includes a second base plate, a plurality of openings are provided on the top surface of the second base plate, each light source corresponds to the center of an opening, and side plates extending toward the light source are also provided at the edge of the opening, The angle between the side plate and the second base plate is greater than 90 degrees;

There is a gap between the side plate and the first base plate, and the second base plate has a convex surface as a whole.

Preferably, as an implementation manner, the light source is a light emitting diode.

Preferably, as an implementation manner, the angle between the side plate and the second base plate is 110-130 degrees.

Preferably, as an implementation manner, the side plates extend from opposite two sides or four sides at the edge of the opening toward the direction of the light source corresponding to the opening.

Preferably, as an implementable manner, the lighting device further includes a plurality of spacers of different heights, the spacers are arranged between the first substrate and the second substrate at intervals, the top surface of each spacer and The bottom surface is attached to the bottom surface of the first substrate and the top surface of the second substrate respectively, and the height of the spacer gradually increases from the center of the first substrate of the light source assembly to the periphery.

Preferably, as an implementable manner, the lighting device further includes a plurality of pads with different heights, the pads are arranged at intervals between the first substrate and the second substrate, and the top surface of each pad and The bottom surface is attached to the bottom surface of the first substrate and the top surface of the second substrate respectively, and the height of the spacers gradually increases from the center of the first substrate of the light source assembly to the opposite two sides.

Preferably, as an implementation manner, the projected area of the second substrate is larger than the projected area of the first substrate.

Preferably, as an implementation manner, the lighting device further includes a locking member, one end of the locking member is connected to the shade plate, and the other end is connected to the light source assembly.

Preferably, as an implementation manner, the side plate and the second base plate are integrally formed.

Preferably, as a possible implementation manner, the lighting device further includes a lampshade, the lampshade is arranged on the light source assembly, the lampshade is in the shape of a flange, and the flange of the lampshade fits around the light source component and the border of the visor.

The beneficial effects of the present invention include:

A lighting device provided by the present invention, the lighting device includes a light source assembly and a shading plate, which are arranged sequentially from top to bottom; the light source assembly includes a first substrate, and multiple a light source; the shading plate includes a second substrate, a plurality of openings are arranged on the top surface of the second substrate, each light source corresponds to the center of an opening, and the edge of the opening is also provided with a hole extending toward the light source The side plate, the angle between the side plate and the second base plate is greater than 90 degrees; there is a gap between the side plate and the first base plate, and the second base plate has a convex surface as a whole.

Wherein, there is a side plate extending toward the light source from the edge of the opening on the second substrate, and the side plate and the second substrate have an included angle greater than 90 degrees. Therefore, the light emitted by the light source and scattered in the non-irradiated area can be reflected. back into the irradiated area. At the same time, the second substrate has a convex surface as a whole. By gradually increasing the angle of inclination of the outer visor, the light source can be recycled, reducing the loss of illumination, and further has the function of anti-glare.

Description of drawings

The present invention will be further described in detail below in conjunction with specific drawings and specific embodiments.

Fig. 1 is an overall assembly sectional view of a specific embodiment of the lighting device of the present invention;

Fig. 1a is an enlarged schematic diagram of partial assembly of the lighting device in Fig. 1;

Fig. 2 is an assembly perspective schematic diagram of a specific embodiment of the lighting device of the present invention;

Fig. 2a is a three-dimensional schematic diagram of a shading plate of a specific embodiment of the lighting device of the present invention;

Fig. 3 is a cross-sectional view of an overall assembly of a specific embodiment of the lighting device of the present invention.

Detailed ways

The lighting device provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , an illuminating device 100 provided by an embodiment of the present invention includes a light source assembly 11 and a shading plate 21 arranged in sequence from top to bottom;

The light source assembly 11 includes a first substrate 111, and a plurality of light sources 112 are arranged at intervals on the bottom surface of the first substrate 111;

The shading plate 21 includes a second substrate 211, a plurality of openings 212 are arranged on the top surface of the second substrate 211, each light source corresponds to the center of an opening, and the edge of the opening 212 is also provided with a The side plate 213 of the light source, the angle between the side plate 213 and the second substrate 211 is greater than 90 degrees;

There is a gap between the side plate 213 and the first substrate 111 , and the second substrate 211 has a convex surface as a whole.

Referring to FIG. 1a, in the embodiment of the invention, a side plate 213 extends toward the light source 112 at the edge of the opening 212 on the second substrate 211, and the side plate 213 and the second substrate 211 have an included angle greater than 90 degrees. Therefore, it is possible to The light emitted by the light source 112 and scattered in the non-irradiated area is reflected back into the illuminated area.

The second substrate 211 has a convex surface as a whole. By gradually increasing the angle of inclination of the outer visor, the light source can be recycled, reducing the loss of illumination, and further has the function of anti-glare.

Preferably, as an implementation mode, the included angle r between the side plate 213 and the second substrate 211 is between 110 degrees and 130 degrees, and the above-mentioned included angle is preferably selected because the matching light-emitting diodes are more directional. Sexuality is the design. However, specifically, the above included angle r may also be adjusted according to different characteristics of the light emitting source. In addition, the side plate 213 and the second base plate 211 may be integrally formed.

Preferably, as an implementation manner, the light source is a light emitting diode. In the embodiment of the present invention, the light source 112 provided by the lighting device is a light emitting diode, but is not limited thereto. Light-emitting diodes have good performances of small size, power saving, and energy saving.

Preferably, as an implementation manner, the side plates extend from opposite two sides or four sides at the edge of the opening toward the direction of the light source corresponding to the opening.

Specifically, referring to FIG. 2 , the side plate 213 extends from two sides of the opening 212 (ie opposite sides at the edge of the opening) toward the direction of the light source corresponding to the opening.

As another possible implementation, as shown in FIG. 2a, FIG. 2a shows a perspective view of the light shielding plate 21. When the distance between the light sources 112 of the light source assembly 11 is relatively large, in order to effectively reflect the scattered light To the irradiation area, side plates 213 can also be set on the four sides of the opening 212 (i.e., the four sides at the edge of the opening), and the side plates 213 are formed from the four sides of the opening 212 (i.e., the four sides at the edge of the opening). side) extending toward and surrounding the light source corresponding to the opening.

It should be noted that, referring to FIG. 1 , the shading plate 21 is arranged below the light source assembly 11, there is a gap d between the shading plate 21 and the light source assembly 11, and the gap height d1 on the outer side is gradually higher than the gap height d2 on the inner side;

Preferably, as an implementable manner, the lighting device further includes a plurality of spacers 31 of different heights, the spacers are arranged between the first substrate and the second substrate at intervals, and the top surface of each spacer and the bottom surface are attached to the bottom surface of the first substrate and the top surface of the second substrate respectively, and the height of the gasket gradually increases from the center of the first substrate of the light source assembly to the periphery.

Please refer to FIG. 3 , wherein the lighting device further includes a plurality of gaskets 31 disposed between the first substrate 111 of the light source assembly 11 and the second substrate 211 of the light shielding plate 21 , wherein the height of the outer gaskets is greater than that of the inner gaskets. Spacer height: In the embodiment of the present invention, the height of the spacers 31a near the outside is sequentially greater than the heights of the adjacent spacers 31b and 31c inside.

Preferably, as an implementable manner, the lighting device further includes a plurality of spacers 31 of different heights, the spacers are arranged between the first substrate and the second substrate at intervals, and the top surface of each spacer and the bottom surface are attached to the bottom surface of the first substrate and the top surface of the second substrate respectively, and the height of the spacers gradually increases from the center of the first substrate of the light source assembly to the opposite two sides.

Preferably, as a possible implementation manner, the spacers 31 are disposed correspondingly from the middle to the outside of the first substrate 111 , and form a stepped arrangement with increasing height. Therefore, it can be controlled so that the shading plate 21 is disposed under the light source assembly 11 in a certain arc. Accordingly, the scattered light source is effectively recovered and reflected in the irradiation area, and the illuminance of the irradiation area is made more uniform.

Preferably, the projected area of the second substrate is larger than the projected area of the first substrate.

Of course, the projected area of the second substrate 211 of the light shielding plate 21 is larger than the projected area of the first substrate 111 of the light source assembly 11 , so that the light shielding plate 21 is arranged under the light source assembly 11 in an arc shape. In this way, the inclination angle of the light shielding plate 21 on the outer side becomes larger, the scattered light source can be recovered, the loss of illumination can be reduced, and the function of anti-glare can be further provided.

The lighting device provided by the embodiments of the present invention can be widely used in large-area illumination, such as advertising billboards and plant planting, and can make the illumination of a specific area more uniform, especially suitable for plant illumination, and helps the synchronization of plant growth.

Preferably, as an implementation manner, the lighting device further includes a locking member (not shown), one end of the locking member is connected to the light shielding plate, and the other end is connected to the light source assembly. The locking member is used to fix the shade plate under the light source assembly.

Preferably, as a possible implementation manner, the lighting device further includes a lampshade (not shown), the lampshade is arranged on the light source assembly, the lampshade is in the shape of a flange, and the flange of the lampshade fits Surrounding the boundary of the light source component and the shading plate.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A lighting device, characterized in that: the lighting device includes a light source assembly and a light shield, which are arranged sequentially from top to bottom; The light source assembly includes a first substrate, and a plurality of light sources are arranged at intervals on the bottom surface of the first substrate; The shading plate includes a second base plate, a plurality of openings are provided on the top surface of the second base plate, each light source corresponds to the center of an opening, and side plates extending toward the light source are also provided at the edge of the opening, The angle between the side plate and the second base plate is greater than 90 degrees; There is a gap between the side plate and the first base plate, and the second base plate has a convex surface as a whole. 2. The lighting device according to claim 1, characterized in that: The light source is a light emitting diode. 3. The lighting device according to claim 2, characterized in that: The included angle between the side plate and the second base plate is 110-130 degrees. 4. The lighting device according to claim 3, characterized in that: The side plates extend from opposite two sides or four sides at the edge of the opening toward the direction of the light source corresponding to the opening. 5. The lighting device according to claim 1, characterized in that: The lighting device also includes a plurality of gaskets with different heights, the gaskets are arranged at intervals between the first substrate and the second substrate, and the top surface and the bottom surface of each gasket are attached to the bottom surface of the first substrate and the second substrate respectively. On the top surface of the second base plate, the height of the gasket gradually increases from the center of the first base plate of the light source assembly to the periphery. 6. The lighting device according to claim 1, characterized in that: The lighting device also includes a plurality of gaskets with different heights, the gaskets are arranged at intervals between the first substrate and the second substrate, and the top surface and the bottom surface of each gasket are attached to the bottom surface of the first substrate and the second substrate respectively. On the top surface of the second substrate, the height of the spacers gradually increases from the center of the first substrate of the light source assembly to the opposite two sides. 7. The lighting device according to claim 5 or 6, characterized in that: The projected area of the second substrate is larger than the projected area of the first substrate. 8. The lighting device according to claim 6, characterized in that: The lighting device further includes a locking piece, one end of the locking piece is connected to the light shielding plate, and the other end of the locking piece is connected to the light source assembly. 9. The lighting device according to claim 1, characterized in that: The side plate is integrally formed with the second base plate. 10. The lighting device according to claim 1, characterized in that: The lighting device further includes a lampshade, the lampshade is arranged on the light source assembly, the lampshade is in the shape of a flange, and the flange of the lampshade fits to surround the boundary of the light source assembly and the light shielding plate.