CN201093376Y - Polycrystal packaging LED lamp - Google Patents

Abstract

A polycrystal packaging LED lamp mainly comprises an LED display substrate, wherein a plurality of LEDs are distributed on the LED display substrate, a Fresnel lens is arranged at the front end of a light projecting surface of each LED, and the distribution angle of light beams can be changed through the Fresnel lens, so that the light receiving effect is achieved, and the brightness emitted by the LEDs is increased; the focal length and the pitch of the Fresnel lens or the distance between the Fresnel lens and the LED can be changed to adjust the distribution angle of the illumination to meet the requirement.

Description

Polycrystalline Packaged LED Lamps

technical field

The utility model relates to LED lighting technology, in particular to a polycrystalline package LED lamp.

Background technique

There are quite a variety of lighting fixtures, which can be roughly divided into outdoor lights, indoor lights, or night lights. Through the lighting of the above-mentioned lighting fixtures, it can provide people with safety when walking at night or in dark places, and avoid dangerous things from happening. Therefore, the practicality of lighting fixtures is beyond doubt.

Today, most of the lighting fixtures still use incandescent lamps, mercury lamps, sodium gas lamps or fluorescent lamps as light sources. However, although the above-mentioned light-emitting lamps can provide lighting in dark places, their lighting efficiency is poor, resulting in relatively increased power consumption. , and all of them use AC power supply, which cannot be used for both AC and DC power, so the convenience of using electricity still needs to be strengthened. Therefore, in order to improve the defects of the above-mentioned light-emitting lamp body, manufacturers in the market have gradually adopted multiple LEDs as the light-emitting source of lighting fixtures to achieve power saving and AC-DC dual-purpose effects. However, if only multiple LEDs are simply used as the light source , Multiple ghost images are prone to occur on the light-emitting surface, resulting in insufficient brightness and uneven light.

Contents of the invention

The purpose of this utility model is to provide a module that combines multiple LEDs and Fresnel lenses to meet different lighting requirements with various lighting angles, different illuminances, and different color temperatures, replacing existing fluorescent lamps or Polycrystalline packaged LED lamps for lighting equipment such as light bulbs.

Another object of the present invention is to provide a polycrystalline packaged LED lamp that uses multiple LEDs closely arranged to reduce the characteristics of the LED point light source, make the light source close to the entire surface, and reduce the phenomenon of multiple ghost images.

In order to achieve the above purpose, the utility model adopts the following technical solutions: a polycrystalline packaged LED lamp, including an LED display substrate and a Fresnel lens (FresnelLens), and a plurality of LEDs are arranged on the LED display substrate. The arrangement on the substrate can be changed; the Fresnel lens is set at the front end of the LED light-emitting surface on the LED display substrate, so that the light source generated by the LED will be projected to the light-receiving surface through the Fresnel lens, and the Fresnel lens will change The angle of beam distribution can achieve the effect of light collection to increase the brightness emitted by multiple LEDs; and the focal length and pitch of the Fresnel lens or the distance between the Fresnel lens and the LED can be changed to adjust the light , to achieve the distribution angle of demand.

Compared with the prior art, the polycrystalline package LED lamp provided by the utility model has

Has the following advantages:

1. The utility model combines a plurality of LEDs and Fresnel lenses into a module to replace existing lighting equipment such as fluorescent lamps or light bulbs with various lighting angles, different illuminance, and different color temperatures to meet different lighting requirements. .

2. The utility model uses multiple LEDs arranged closely, which can reduce the characteristics of the LED point light source, make the light source close to the whole surface to emit light, and reduce the phenomenon of multiple ghost images.

Description of drawings

Fig. 1 is the schematic diagram of polycrystalline encapsulation LED lamp of the present invention;

2 is a schematic diagram of an embodiment of the polycrystalline package LED lamp of the present invention;

Fig. 3 is a schematic diagram of the Fresnel lens of the polycrystalline package LED lamp of the present invention;

Fig. 4 is a schematic diagram of another Fresnel lens of the polycrystalline encapsulated LED lamp of the present invention;

Explanation of reference signs: 1. LED display substrate, 2. LED, 3. Fresnel lens, 4. light beam.

Detailed ways

Example

Please refer to Figure 1, which is a schematic diagram of a polycrystalline packaged LED lamp provided by the present invention, which mainly includes:

LED display substrate 1, a plurality of LEDs 2 are arranged on the LED display substrate 1, and the arrangement and spacing of the plurality of LEDs 2 on the substrate 1 can be changed according to requirements, and the LEDs 2 can be low-power LEDs (sub power LEDs) or High power LED (highpower LED);

Fresnel lens 3, the focal length or pitch of the Fresnel lens 3 can be changed as required;

The Fresnel lens 3 is arranged on the front end of the light-emitting surface of the plurality of LEDs 2 on the LED display substrate 1, and is packaged to form a lighting fixture.

In addition, the LED display substrate can be packaged first, and then combined with the Fresnel lens to form a lighting fixture.

In addition, multiple groups of lighting fixtures combined with the Fresnel lens 3 can be combined with each other to form lighting of a larger area.

In addition, the LED display substrate 1 connected with a plurality of LEDs 2 can be combined with the Fresnel lens 3 to form a lighting fixture with a specific shape, a specific color temperature, and a specific light intensity.

Please refer to FIG. 2 , which is a schematic diagram of an embodiment of the present utility model. When a plurality of LEDs 2 generate a light beam 4, the light beam 4 will be projected to the light receiving surface through the Fresnel lens 3, and the light beam 4 will be changed through the Fresnel lens 3. The angle of distribution can achieve the effect of light collection, so as to increase the brightness emitted by a plurality of LED2. Furthermore, the focal length and pitch of the Fresnel lens 3 or the distance between the Fresnel lens 3 and the LED 2 can be changed to adjust the illumination to achieve the required distribution angle.

Please refer to FIG. 3 , which is a schematic diagram of the Fresnel lens of the present invention, wherein the Fresnel lens 3 can be circular, so that the lighting fixture has a circular light projection surface.

Please refer to FIG. 4 , which is another schematic diagram of the Fresnel lens of the present invention, wherein the Fresnel lens 3 can be in the shape of a strip (or line), so that the lighting fixture has a strip-shaped light projection surface.

The above detailed description is a specific description of the feasible embodiment of the utility model. This embodiment is not used to limit the patent scope of the utility model. Any equivalent implementation or change that does not deviate from the utility model shall be included in this case within the scope of the patent.

Claims (6)

1. a polycrystalline packaged LED light fixture is characterized in that: comprise Fresnel lens;

LED displays substrate, is laid with plural LEDs on it;

Described Fresnel lens is arranged at the front end of the plural LEDs light projector face of LED display substrate, and encapsulation forms lighting.

2. polycrystalline packaged LED light fixture according to claim 1 is characterized in that: described LED is low-power LED.

3. polycrystalline packaged LED light fixture according to claim 1 is characterized in that: described LED is a high-capacity LED.

4. polycrystalline packaged LED light fixture according to claim 1 is characterized in that: the LED display substrate after the described encapsulation combines with Fresnel lens and forms lighting.

5. polycrystalline packaged LED light fixture according to claim 1 is characterized in that: described Fresnel lens is a circular eyeglass.

6. polycrystalline packaged LED light fixture according to claim 1 is characterized in that: described Fresnel lens is the strip eyeglass.

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