CN203868741U - Irregular dual-lens LED lamp - Google Patents

Abstract

The utility model relates to an irregular dual-lens LED lamp. Secondary light distribution is performed through a peanut lens and a fog particle type lens. The basic element used for the LED optical design is a high-power white light LED subjected to primary light distribution, and the single LED serves as an electric light source. The light emitting angle is enlarged through the design of the aspheric surface peanut lens, the halo and the illumination range are controlled through W-type regular distribution of the peanut lens, the overall light intensity is controlled by the peanut lens and the fog particle type lens on a light reflecting lampshade in a cooperated mode, light undergoes multiple times of diffuse transmission through the lenses and the semicircular light reflecting lampshade, the design purpose of scientific and effective secondary light distribution is achieved, and thus light becomes softer and more uniform and is favorable for protecting human eyes.

Description

An irregular double-lens LED lamp

technical field

The utility model relates to a novel irregular double-layer lens type LED lamp, especially in the field of ordinary household indoor lighting, which requires high LED lighting. The secondary light distribution device adopts a peanut lens and a single LED light emitting characteristic. The multi-angle, multi-path, and multiple diffuse reflections of the foggy particle lens can effectively control the overall light intensity, so that the emitted light becomes more uniform and soft.

Background technique

At present, the country is implementing and promoting energy conservation and emission reduction policies, vigorously promoting green, environmental protection, and low-carbon lighting, and LED is recognized as the best new lighting source in the 21st century. A single LED is an electric light source, which emits direct light, which cannot be evenly distributed. When used directly, it is easy to make people feel dazzling and cause visual fatigue. One of the key core technologies of LED lights is secondary light distribution. The traditional secondary optical design mainly adopts LED arc arrangement and plane arrangement, both of which have defects in light distribution, and it is difficult to meet the requirements of satisfactory illumination uniformity and light softness. The utility model adopts the double-layer lens of the peanut lens and the foggy particle lens for secondary light distribution, controls the halo and the range of light according to the W-shaped regular distribution of the peanut lens, and cooperates with the foggy particles on the inner wall of the milky white PVC pipe shell Type lens to control the overall light intensity, through the lens and the semi-circular milky white PVC shell, the light is diffused multiple times to achieve a scientific and effective secondary light distribution design, so that the light becomes softer and more uniform, which is beneficial to Protect human eyes.

Utility model content

In order not to cause visual fatigue and protect human eyes, the utility model aims to provide a scientific and effective LED secondary light distribution device. The difference from the existing LED secondary light distribution is that: the use of irregular double-layer lenses allows the light emitted by the point light source to spread through multiple angles and undergo diffuse reflection many times to control the overall luminous intensity, uniformity and softness of illumination. Widely used in shopping malls, supermarkets and other public places and family indoor general lighting.

As shown in Figure 1, the utility model mainly consists of a high-power LED chip 1 (structure shown in Figure 2), an aluminum-based circuit board 2, a peanut lens 3, a foggy particle lens 4, a milky white PVC shell 5, and a card slot 6 components; the high-power LED chip 1 is directly pasted and welded on the aluminum-based circuit board 2 printed with conductive lines, the peanut lens 3 is fastened on the high-power LED chip 1, and passes through the peanut lens as shown in Figure 3 The plastic connection column 7 on the top and the mounting hole on the aluminum-based circuit board 2 are fixed together with the aluminum-based circuit board 2, and the high-power LED chip 1 and the peanut lens 3 are arranged in a double-row W shape. The aluminum-based circuit board 2 is assembled with the milky white PVC casing 5 with the foggy granular lens 4 on the inner wall through the slot 6 on the casing.

Described technical scheme is as follows:

First, expand the surface of the point light source, and then perform light softness processing on the basis of the surface expansion.

In order to better realize the light diffuse reflection of the present invention, the following technical solutions may also be included:

The volume of the lens is as small as possible and the irregular arrangement between the lenses is combined with the shell to form a hemispherical milky white PVC shell.

In order to better realize the soft line of light, the following technical solutions are also included:

Reflective aluminum-based circuit board and milky white PVC casing are used to reflect and refract light multiple times.

In order to better realize the illumination range expansion of the present invention, the following technical solutions may also be included:

According to the expansion characteristics of the peanut lens, a double-row symmetrical W-shaped arrangement is adopted.

The working principle of the present invention: Arrange the peanut lenses installed on the outside of a single high-power LED chip in a W shape, the direct light of the LED passes through the peanut lens to expand the scattering angle of the light, and the scattered light passes through multiple angles and multiple channels and then It is projected onto the inner wall of the semi-circular milky white PVC shell composed of many smoky particle lenses, and sends soft light to the space through diffuse emission, so as to achieve the principle of diffusing and diffuse reflection of direct light by using double-layer lenses. The purpose of secondary optical design.

Description of drawings

Fig. 1 is the secondary light distribution design assembly drawing of the present utility model;

Fig. 2 is the structural diagram of the high-power LED chip that the utility model adopts; LED chip is mainly made up of parts such as electrode 8, outer package 9, gold connection wire 10, heat dissipation pad 11, LED chip 12, lens 13.

Fig. 3 is the peanut lens schematic diagram that the utility model adopts;

Fig. 4 is a schematic diagram of the light distribution principle of the peanut lens adopted in the utility model.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 2, a single high-power LED chip with a power of 1W, or all LEDs of various colors that can work under a DC 16V power supply can be used in this fluorescent lamp.

As shown in Figure 3, the peanut lens is a kind of free aspheric lens, and the peanut lens is a concave lens. The concave lens realizes uniform light distribution within the range of ±60°C in the longitudinal direction, and a range of ±30°C in the lateral direction. Evenly distributed light distribution within. It is known that the angle of the LED light source is 90°C, the longitudinal radian of the concave lens plays the role of astigmatism, and the transverse direction plays the role of concentrating light. The outgoing light of the white LED light source passes through the first and second free-form surfaces of the concave lens respectively. After the refraction of , uniform lighting with rectangular distribution is formed in a specific lighting space.

As shown in Figure 1, the shell of the fluorescent lamp is a long semicircular milky-white PVC shell, and the inner wall of the milky-white PVC shell is covered with fine mist-like particle lenses.

As shown in Figure 4, when the direct light emitted by a single high-power LED chip passes through the peanut lens, it can achieve a uniform light distribution within the range of ±60°C in the longitudinal direction, and a uniform light distribution within the range of ±30°C in the lateral direction. Evenly distributed light distribution. After the refraction of the free-form surfaces of the first surface and the second surface of the concave lens, uniform illumination with rectangular distribution is formed in a specific illumination space.

As shown in Figure 1, on the aluminum-based circuit board circuit, the SMD high-power LED chips are arranged, installed and welded in a double-row W shape, and then a peanut lens is installed on each LED bead. One side of the circuit board equipped with high-power LED chips is installed with a long semicircular milky white PVC tube shell as the lamp body shell. After being refracted by the first and second free-form surfaces of the concave lens, the outgoing light is projected onto the inner wall of the lampshade from different angles, diffusely reflected by the fine mist-like particle-shaped lens covered on the inner wall of the PVC shell, and emits uniform light. , soft light.

Claims (5)

1. An irregular double-layer lens-type LED lamp, characterized in that: high-power LED chip 1, aluminum-based circuit board 2, peanut lens 3, foggy particle lens 4, milky white PVC shell 5, card slot 6 Composition: The high-power LED chip 1 is directly pasted and welded on the aluminum-based circuit board 2 printed with conductive lines, the peanut lens 3 is fastened on the high-power LED chip 1, and passed through the peanut lens as shown in Figure 3 The plastic connection column 7 and the installation hole on the aluminum-based circuit board 2 are fixed together with the aluminum-based circuit board 2, and the high-power LED chip 1 and the peanut lens 3 are arranged in a double-row W shape; the aluminum-based circuit board 2 and the inner wall The milky white PVC casing 5 with the foggy particle lens 4 is assembled together through the draw-in groove 6 on the casing. 2. An irregular double-layer lens type LED lamp according to claim 1, characterized in that: the aluminum-based circuit board 2 is printed with conductive lines and patch pads, and the high-power LED chip 1 passes through the heat-conducting silicone grease. The high-power LED chip 1 is arranged in a double-row W-shape. 3. An irregular double-layer lens type LED lamp according to claim 1, characterized in that: a single high-power LED chip requires a power of 1W, and all LEDs of various colors that can work under a DC 16V power supply can be used. 4. An irregular double-layer lens type LED lamp according to claim 1, characterized in that: the two ends of the bottom of the peanut lens 3 are provided with plastic connecting posts, and the high-power LED chip 1 is welded on the aluminum-based circuit board 2. There is a mounting hole corresponding to the position, and the peanut lens 3 is buckled into the mounting hole through a plastic connecting column. 5. An irregular double-layer lens-type LED lamp according to claim 1, characterized in that: a large number of mist-like granular lenses 4 are distributed on the inner wall of the milky white PVC shell 5, and the milky white PVC shell 5 has good light transmission The foggy granular lens 4 on the inner wall performs secondary diffuse reflection on the light emitted from the peanut lens 3; there are slots 6 on both sides of the milky white PVC casing 5, and the aluminum base circuit board 2 passes through the slot 6 and the milky white The PVC casing 5 is combined, and the aluminum-based circuit board 2 can slide freely by means of the slot 6, and the aluminum-based circuit board 2 can be conveniently pulled out during maintenance.