KR200471995Y1 - A led planar light source and flat luminaires and flat type led lamp - Google Patents

Abstract

The present invention relates to a reflective piece having a light guide point, an LED planar light source, an LED flat lamp, and a flat LED lamp, and a plurality of light guide points are printed on the reflective surface of the reflective piece, and have a light guide performance. The LED flat tube, LED flat lamp, and flat panel type LED lamps convert the line light source into a surface light source using the reflector to emit light with even and smooth light, and the luminous efficiency is high and the cost is saved.

Description

LED flat light source and LED flat lamp and flat type LED lamp {A LED PLANAR LIGHT SOURCE AND FLAT LUMINAIRES AND FLAT TYPE LED LAMP}

The present invention relates to the field of photovoltaics, and more particularly, a reflector for lighting, a screen light distribution module or a neon sign, and an LED planar light source (or an LED flat lamp or a planar LED lamp) using the reflector. It is about.

Among the prior arts, there is a technique for converting a line light source into a surface light source through a light guide plate. Such a light guide plate is an optical acrylic plate, and the light guide point is printed on the bottom surface of the optical acrylic plate with an ink having a very high reflectance and not absorbing light. The optical acrylic plate is used to absorb the light emitted from the lamp on the surface of the optical acrylic plate. When the light shines at each light guide point, multi-angle light reflection occurs, so when the reflection condition is destroyed, the light is emitted from the light guide plate without diffusion. It can be emitted in the front. The light guide plate may emit light evenly through various light guide points. By using a reflection piece on the back surface of the light guide plate, the light leaked on the bottom surface of the light guide plate by the reflection piece can be reflected by the light guide plate to improve the utilization rate of the light.

Through the above-described structure and principle, it can be seen that the light guide point in the light guide plate of the prior art is printed directly on the light guide plate. This process is very difficult to work with and the failure rate is also very high, which leads to very high manufacturing costs and can reduce the lighting efficiency by more than 25% when the light is propagated by the light guide plate.

LED (Light Emitting Diode) technology is widely used because it has the advantages of high power saving and high illumination, long service life and excellent seismic performance. Recently, LED lamps are increasingly used in everyday lighting and screen light distribution module.

The LED lamp panel that is commonly used has a structure in which a plurality of sockets are displayed in one lampshade, and a driving circuit is installed in the lampshade. This structure is simple and practical, but the luminous effect is not very good, and uniform emission is less than 70%. Accordingly, the LED flat light has been developed, such LED flat light has a flat shape, and the internal parts are also configured in a flat shape. Planar reflectors, light guide plates, and diffusers are sequentially mounted on the bottom plate, LED strips are mounted on the side of the light guide plate in the bottom plate, and light is reflected several times under the cooperative action of the reflector plate and the light guide plate to achieve a uniform light emission effect. In addition, the light is softly shining by the diffusion plate.

Through the above-described structure and principle, the LED flat lamp converts the line light source to the surface light source by the light guide plate, and the existing light guide plate is an optical acrylic plate, and the light guide point on the light guide plate is printed directly on the light guide plate. This process is very difficult to work, the defect rate is very high, the cost of the optical acrylic plate is high, the manufacturing cost of the LED flat light is also very high, there is a problem that the light efficiency can be reduced more than 25% when the light is propagated by the light guide plate.

The present invention is to solve the problems as described above, it is possible to convert the line light source to a surface light source, the flat light is made, the light is uniformly and smoothly shed by the uniform light emission, the cost is saved and has a simple structure It is an object of the present invention to provide a reflecting piece having a light guiding point, an LED planar light source, an LED flat lamp, and a flat LED lamp using the reflecting piece.

The present invention has adopted the following technical measures to achieve the above object.

As a kind of reflection piece having a light guide point, a reflection plate having a reflection surface is provided, and a plurality of light guide points are printed on the reflection surface of the reflection plate. Preferably, the light guide point is made of ink.

According to the structure of the above-mentioned reflecting piece, the reflecting piece of the present invention not only has a conventional reflecting function but also uses a transparent plate (for example, an acrylic plate or a glass plate) or an air layer on the reflecting surface of the reflecting piece. Alternatively, when entering from the air layer and shining the light guiding point on the reflecting surface of the reflecting plate, the reflected light may be diffused at various angles and diverge from the front after destroying the reflecting condition, and may convert the line light source into a surface light source. Therefore, the reflective piece of the present invention has a light guiding function, and the same effect can be obtained at a lower cost than the technology of printing a conventional light guiding point on the reflecting plate, thereby improving market share.

A kind of LED planar light source, comprising a reflector, a diffuser plate, an LED light source and a frame; The reflective plate has a reflective surface and a rear surface facing each other, and prints a plurality of light guide points on the reflective surface; The diffuser plate is located on one side of the reflector plate having a reflecting surface, and forms a space between the diffuser plate and the reflecting surface, and the reflecting plate to print the light guide point, the space and the diffuser plate has a light switching structure A side edge of the light conversion structure to the frame; The LED light source is installed in the frame and is located at the side of the space.

The light emitted from the LED light source enters the space from the side surface, and when reflecting the light guiding point on the reflecting surface of the reflecting plate, the reflected light diffuses at various angles and destroys the reflecting condition and then diverges from the front of the space. The line light source can be converted into a surface light source. The reflector plate not only provides a light guiding point but also reflects light in the space, thereby improving lighting efficiency and preventing uniform light from being emitted by the diffuser plate, so that uniform light is emitted evenly and softly. In addition, the luminous efficiency is also very high.

Compared to the problem that the existing light guide plate technology has a high cost, the present invention can reduce manufacturing cost because the cost of technology and structure for printing the light guide point of the present invention on the reflecting plate without using the light guide plate separately is low, and there is no light guide plate. Therefore, the lighting efficiency can be prevented from being consumed, so the lighting efficiency can be improved by 25% and the lighting effect is very good.

In one embodiment, of the LED light source, the LED light source is provided on one side of the inside of the frame, and the reflection pieces are provided on all of the other sides. Here, the reflection piece is a reflection piece that does not have a conventional light guide point, and can improve illumination efficiency and prevent light rays from being absorbed by the frame.

In one embodiment, the LED light source is stacked on the rear surface of the reflecting plate, the side further comprises a bottom plate fixed in the frame. Of course, it is not necessary to install the bottom plate, the installation of the bottom plate is determined according to the strength of the reflecting plate, the bottom plate can be omitted when the strength of the reflecting plate is appropriate.

In one embodiment, the LED light source is an LED strip.

In one embodiment, the LED strip is at least one, it is located on the side edge of the light conversion structure, the light emitting portion of the LED strip is made to correspond to the side of the space.

In one embodiment, the light guide point is made of ink.

A kind of LED flat plate, including a bottom plate, a reflecting plate, a transparent plate, a diffusion plate, an LED light source and a frame; The reflective plate, the transparent plate, and the diffuser plate are formed in a flat plate form, and are sequentially stacked to form one optical stacked structure, wherein the optical stacked structure is located on the bottom plate from the reflective plate; The LED light source is located on the side of the transparent plate; The frame covers an edge of the optical stack and is fixedly coupled to the bottom plate; The surface on which the reflective plate and the transparent plate are stacked is a reflective surface, and a plurality of light guide points are printed on the reflective surface of the reflective plate.

When the light emitted from the LED light source enters the transparent plate from the side, and reflects the light guide point on the rear surface of the transparent plate (ie, the reflective surface of the reflecting plate), the reflected light is diffused at various angles to reflect the reflection condition. After destroying the light emitted from the front of the transparent plate, the line light source can be converted to a surface light source. The reflector may not only provide a light guiding point but may also reflect light in the transparent plate, thereby improving lighting efficiency and preventing uniform light from being emitted by the diffuser plate, so that uniform and smooth light may be emitted. In addition, the luminous efficiency is also very high. Compared to the problem of high cost in the conventional light guide plate technology, the present invention can achieve the same effect at a low cost because the cost of the technology and structure for printing the light guide point on the reflector is relatively low.

In one embodiment, in the LED flat plate, the transparent plate is one of an acrylic plate, a glass plate and a polycarbonate plate.

In one embodiment, of the LED flat lamp, the LED light source is an LED strip.

In one embodiment, among the LED flat plate, the LED strip is at least one, and the light emitting portion of the LED strip is provided to correspond to the side of the transparent plate.

In one embodiment, among the LED flat plate, the light guide point is made of ink.

A type of flat panel LED lamp comprising a bottom plate, a reflector plate, a glass plate, an LED light source and a frame; The reflecting plate and the glass plate are formed in a flat plate shape and are stacked on each other to form an optical stack structure, wherein the optical stack structure is located on the bottom plate from the reflecting plate; The LED light source is located on the side of the glass plate; The frame covers an edge of the optical stack and is fixedly coupled to the bottom plate; One surface on which the glass plate and the reflection plate are laminated to each other is a rear surface, the other surface is a front surface, and the front surface of the glass plate is formed of a convex surface; One surface on which the reflective plate and the glass plate are stacked is a reflective surface, and a plurality of light guide points are printed on the reflective surface.

When the light emitted from the LED light source enters the glass plate from the side surface and shines on the light guiding point on the rear surface of the glass plate (ie, the reflecting surface of the reflecting plate), the reflected light diffuses at various angles to destroy the reflecting condition. After it is emitted from the front of the glass plate can be converted into a line light source. The reflector may not only provide a light guiding point but may also reflect light in the glass plate, thereby improving lighting efficiency and preventing uniform light from being reflected by the convex surface of the glass plate, thereby uniformly and smoothly shining light. In addition, the luminous efficiency is also very high.

Among the existing technologies, a diffusion plate and a light guide plate made of acrylic material are used, and a light guide point is printed on the back surface of the acrylic plate, so that the cost is high. It is low, and also the light guide structure is formed on the glass plate, and the light diffusion effect on the front of the glass plate, the same effect can be obtained at a low cost.

 In one embodiment, in the flat LED lamp, the front surface of the glass plate may be a FROSTED surface formed by polishing treatment, or may be a surface formed by drug erosion.

In one embodiment, of the planar LED lamps, the LED light source is an LED strip.

In one embodiment, the LED strip, the LED strip is at least one or more, the light emitting portion of the LED strip is made to correspond to the side of the glass plate.

In one embodiment, in the flat panel LED lamp, the light guide point is made of ink.

As described above, according to the present invention, the reflective piece of the present invention not only has a conventional reflective function but also uses a transparent plate (eg, an acrylic plate or a glass plate) or an air layer on the reflective surface of the reflective piece. Alternatively, when entering from the air layer and shining the light guiding point on the reflecting surface of the reflecting plate, the reflected light may be diffused at various angles and diverge from the front after destroying the reflecting condition, and may convert the line light source into a surface light source. Therefore, the reflective piece of the present invention has a light guiding function, and has the advantage that the market share can be improved because the same effect can be obtained at a lower cost than the technology of printing a conventional light guiding point on the reflecting plate.

The LED planar light source of the present invention uses the reflection piece, and the diffusion plate is located on one side of the reflection plate having the reflection surface, and a space is formed between the diffusion plate and the reflection plate. The light emitted from the LED light source enters the space from the side surface, and when reflecting the light guiding point on the reflecting surface of the reflecting plate, the reflected light diffuses at various angles and destroys the reflecting condition and then diverges from the front of the space. The line light source can be converted into a surface light source. The reflector plate not only provides a light guiding point but also reflects light in the space, thereby improving lighting efficiency, and preventing uniform light from being emitted by the diffuser plate. In addition, the luminous efficiency is also very high.

Without using a light guide plate in the present invention, the cost of the technology and structure for printing the light guide point of the present invention on the reflecting plate is relatively low, the manufacturing cost can be lowered, and there is no light guide plate, so that the lighting efficiency is prevented from being reduced due to the light guide plate. Can be. In addition, there is an advantage that the lighting efficiency can be improved and the lighting effect is also very good.

The LED flat lamp of the present invention uses the reflective piece, and the light rays emitted from the LED light source enter the transparent plate from the side, and the light guide point on the rear surface of the transparent plate (ie, the reflective surface of the reflecting plate). When the reflected light is reflected, the reflected light may be diffused at various angles to destroy the reflecting condition, and then emitted from the front side of the transparent plate to convert the line light source into a surface light source. Since the reflecting plate not only provides a light guiding point but also reflects light into the transparent plate, the reflecting plate may improve illumination efficiency and prevent uniform light from being emitted by the diffuser plate, thereby uniformly and evenly shining light. In addition, the luminous efficiency is also very high.

Compared to the problem that the existing light guide plate technology has a high cost, the present invention has a merit that the same effect can be obtained at a low cost because the cost of the technology and structure for printing the light guide point on the reflector is relatively low.

The flat LED lamp of the present invention uses the reflective piece, and the light rays emitted from the LED light source enter the glass plate from the side surface, and the light guide point on the rear surface of the glass plate (that is, the reflective surface of the reflecting plate) is used. When the light is reflected, the reflected light is diffused at various angles to break the reflection condition, and then emitted from the front side of the glass plate, thereby converting the linear light source into a surface light source. The reflector may not only provide a light guiding point but may also reflect light in the glass plate, thereby improving lighting efficiency and preventing uniform light from being reflected by the convex surface of the glass plate, thereby uniformly and smoothly shining light. In addition, the luminous efficiency is also very high.

Among the existing technologies, a diffusion plate and a light guide plate of acrylic material are used, and the light guide point is printed on the back surface of the acrylic plate, so that the cost is high. It is comparatively low, and also has a glass plate and a light guide structure, and the light diffusion effect on the front of the glass plate has the advantage that the same effect can be obtained at a low cost.

1 is a structural diagram of a reflective piece having a light guide point of the present invention;
2 is a structural diagram of the LED plane light source of the present invention;
3 is a structural diagram of the LED flat lamp of the present invention;
4 is a structural diagram of a flat LED lamp of the present invention.

Example 1 As a reflection piece having a kind of light guide point, a reflection plate A1 having a reflection surface A11 is provided, and a plurality of light guide points A2 are printed on the reflection surface A11 of the reflection plate A1. . The light guide point A2 is made of ink. The reflection plate A1 is made of a material having a reflection function.

Embodiment 2: A kind of LED planar light source, comprising a reflecting plate 2, a diffuser plate 4, an LED light source 5 and a frame 6; The reflecting plate 2 has a reflecting surface and a rear surface facing each other, and prints a plurality of light guide points 21 on the reflecting surface; The diffusion plate 4 is located at one side of the reflection plate 2 having a reflection surface, and forms a space 3 between the diffusion plate 4 and the reflection surface and the light guide point 21. The printed reflecting plate (2), the space (3), and the diffusion plate (4) form a light switching structure, and side edges of the light switching structure are fixed to the frame (6); The LED light source 5 is installed in the frame 6 and is located on the side of the space 3.

The LED light source 5 is provided on one side of the inner side of the frame 6, and the reflective piece 7 is provided on the other side. Here, the reflecting piece 7 is a reflecting piece having no existing light guide point, and can improve the lighting efficiency and can prevent the light beam from being absorbed by the frame 6.

Depending on the strength condition, the bottom plate 1 which is laminated on the rear surface of the reflecting plate 2 and fixed in the frame 6 further includes. Of course, it is not necessary to install the bottom plate 1, and the installation of the bottom plate 1 is determined according to the strength of the reflecting plate 2, and when the strength of the reflecting plate 2 is appropriate, the bottom plate ( 1) can be omitted.

The LED light source 5 is an LED strip. The LED strip is at least one, and located at the side edge of the light conversion structure, the light emitting portion of the LED strip is made to correspond to the side of the space (3).

The light guide point 21 is made of ink.

LED planar light source of the present invention can be made in various forms such as square.

Example 3: A kind of LED flat plate etc., comprising bottom plate B1, reflecting plate B2, transparent plate B3, diffuser plate B4, LED light source B5 and frame B6; The reflective plate B2, the transparent plate B3, and the diffusion plate B4 have a flat plate shape, and are sequentially stacked to form one optical stacked structure, and the optical stacked structure is formed from the reflective plate B2. Located on the bottom plate B1; The LED light source (B5) is located on the side of the transparent plate (B3); The frame B6 covers the edge of the optical laminated structure and is fixedly coupled to the bottom plate B1; The surface on which the reflective plate B2 and the transparent plate B3 are stacked is a reflective surface, and a plurality of light guide points B21 are printed on the reflective surface of the reflective plate B2.

The transparent plate B3 is one of an acrylic plate, a glass plate, and a polycarbonate plate.

The LED light source B5 is an LED strip. The LED strip is at least one, the light emitting portion of the LED strip is made to correspond to the side of the transparent plate (B3).

The light guide point B21 is made of ink.

The reflection plate B2 is made of a material having a reflection function.

The bottom plate B1, the reflector plate B2, the transparent plate B3, the diffuser plate B4, the LED light source B5, and the frame B6 may be formed in various shapes such as a rectangle.

The LED flat lamp of the present invention uses the reflective piece, and the light rays emitted from the LED light source enter the transparent plate from the side, and the light guide point on the rear surface of the transparent plate (ie, the reflective surface of the reflecting plate). When the reflected light is reflected, the reflected light is diffused at various angles, and the light is emitted from the front side of the transparent plate after breaking the reflecting conditions, thereby converting the line light source into a surface light source. The reflector may not only provide a light guiding point but also reflect light in the space, thereby improving lighting efficiency and preventing uniform light from being emitted by the diffuser, thereby uniformly and evenly shining light. In addition, the luminous efficiency is also very high.

Compared to the problem that the existing light guide plate technology has a high cost, the present invention can achieve the same effect at a low cost because the cost of the technology and structure for printing the light guide point on the reflector is relatively low.

Example 4 A kind of flat LED lamp comprising a bottom plate C1, a reflecting plate C2, a glass plate C3, an LED light source C4 and a frame C5; The reflective plate C2 and the glass plate C3 are formed in a flat plate shape, and are stacked on each other to form one optical stacked structure, and the optical stacked structure is positioned on the bottom plate C1 from the reflective plate C2. ; The LED light source (C4) is located on the side of the glass plate (C3); The frame C5 covers the edge of the optical laminated structure and is fixedly coupled to the bottom plate C1; One surface on which the glass plate C3 and the reflecting plate C2 are stacked is the rear surface, the other surface is the front surface C31, and the front surface C31 of the glass plate C3 has a convex surface; One surface on which the reflective plate C2 and the glass plate C3 are stacked is a reflective surface, and a plurality of light guide points C21 are printed on the reflective surface.

 The front surface C31 of the glass plate C3 may be a frosted surface formed by polishing, or may be a surface formed by drug erosion.

The LED light source C4 is an LED strip. The LED strip is at least one, the light emitting portion of the LED strip is made to correspond to the side of the glass plate (C3).

The light guide point C21 is made of ink.

The reflection plate C2 is made of a material having a reflection function.

The bottom plate C1, the reflector plate C2, the glass plate C3, and the frame C5 may be formed in various shapes such as a quadrangle.

When the light emitted from the LED light source enters the glass plate from the side, and reflects the light guide point on the rear surface of the glass plate (ie, the reflecting surface of the reflecting plate), the reflected light diffuses at various angles to destroy the reflecting condition. After it is emitted from the front of the glass plate, the line light source can be converted into a surface light source. The reflector plate not only provides a light guiding point but also reflects light into the glass plate, thereby improving lighting efficiency and preventing uniform light from being reflected by the convex surface of the glass plate, thereby allowing even and soft light to be emitted. . In addition, the luminous efficiency is also very high.

Among the existing technologies, a diffusion plate and a light guide plate of acrylic material are used, and the light guide point is printed on the back surface of the acrylic plate, so that the cost is high. It is comparatively low, and also the glass plate and the light guide structure are formed, and because the light diffusion effect on the front of the glass plate can be obtained the same effect at a low cost.

Claims (19)

delete delete Including a reflector, a diffuser plate, an LED light source and a frame;
The reflecting plate has a reflecting surface and a back facing each other, and a plurality of light guide points formed of ink are printed on the reflecting surface;
The diffuser plate is located at one side of the reflector plate having a reflective surface, a space is formed between the diffuser plate and the reflective surface, the light guide point is printed, the space, and the diffuser plate has a light switching structure A side edge of the light conversion structure is fixed to the frame;
The LED light source is at least one LED strip, is a side of the space and is installed on one side of the inside of the frame, and the other side is provided with reflection pieces;
The LED strip is at least one, LED plane light source, characterized in that located on the side edge of the light conversion structure, the light emitting portion of the LED strip to correspond to the side of the space. delete The method of claim 3, wherein
The LED planar light source, which is laminated on the rear surface of the reflecting plate, and the side surface further comprises a bottom plate fixed in the frame. delete delete delete Including a bottom plate, a reflector plate, a transparent plate, a diffusion plate, an LED light source and a frame;
The reflective plate, the transparent plate, and the diffuser plate are formed in a flat plate form, and are sequentially stacked to form one optical stacked structure, wherein the optical stacked structure is located on the bottom plate from the reflective plate;
The LED light source is at least one LED strip, the light emitting portion of the LED strip is made to correspond to the side of the transparent plate,
The frame covers an edge of the optical stack and is fixedly coupled to the bottom plate;
LED reflector, characterized in that the surface on which the reflective plate and the transparent plate is laminated is a reflective surface, a plurality of light guide points made of ink is printed on the reflective surface of the reflective plate. The method of claim 9,
The transparent plate is an LED flat plate, characterized in that one of an acrylic plate, a glass plate and a polycarbonate plate. delete delete delete Including bottom plate, reflector plate, glass plate, LED light source and frame;
The reflecting plate and the glass plate are formed in a flat plate shape and are stacked on each other to form an optical stack structure, wherein the optical stack structure is located on the bottom plate from the reflecting plate;
The LED light source is at least one LED strip, and the light emitting part of the LED strip corresponds to a side of the glass plate;
The frame covers an edge of the optical stack and is fixedly coupled to the bottom plate;
One surface on which the glass plate and the reflection plate are laminated to each other is a rear surface, the other surface is a front surface, and the front surface of the glass plate is formed of a convex surface;
One surface on which the reflective plate and the glass plate are stacked on each other is a reflective surface, and a plurality of light guide points made of ink are printed on the reflective surface. 15. The method of claim 14,
The front surface of the glass plate is a flat type LED lamp, characterized in that the frosted surface formed by polishing. 15. The method of claim 14,
The front surface of the glass plate is a flat LED lamp, characterized in that the surface formed by erosion of the drug. delete delete delete

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