KR20110128517A - Anti-glare led light and a method of producing the same - Google Patents

Abstract

PURPOSE: An LED lamp with an anti-glare function and a manufacturing method thereof are provided to uniformly reflect light applied from a light source without overlapping, thereby emitting a sufficiently bright light. CONSTITUTION: An LED lens includes a transparent area(12) and a reflective area(14) which are integrated. A plurality of light sources(20) is arranged on the external side of the LED lens. The transparent area is made of a high transparent material. The bottom of the transparent area has a parabolic shape. The reflective area is formed by coating a chemical material on the bottom of the transparent area.

Description

LED lighting lamp having anti-glare function and its manufacturing method {Anti-glare LED light and a method of producing the same}

The present invention relates to an LED lamp having an anti-glare function, and more particularly, a plurality of light sources disposed in the radially lateral direction of the LED lens composed of a front reflective layer and a side transmissive layer made of a reflective material in a paste state is irradiated from the light source. By dispersing the light to the front of the LED lens, it is possible to prevent glare as well as to reduce the light loss of the LED lighting lamp and a method for manufacturing the same.

In general, a light emitting diode (LED) has advantages in that it is small in size, long in life, and directly converts electric energy into light energy compared to conventional light sources, and thus has low power consumption and good light efficiency. The biggest advantage of LED is that it is a low power device with high efficiency, among other things, and the resulting energy savings and long lifespan are very different from the existing general lighting. In addition, there is an advantage that does not cause environmental pollution because no harmful substances are used in the manufacturing process.

However, the LED having such an advantage has a problem in that the straightness is strong and the glare is severely used when used as a lamp element for lighting, thereby causing discomfort. In general, the light emitting surface of the LED device has a structure that collects and emits light on the front surface using a small reflector and an epoxy lens. Therefore, when emitting light with high brightness in order to increase the brightness, the glare of the light source is so severe that most LED lighting devices have a milky white diffused cover including light diffuser on the LED element or a transparent material composed of irregularities to eliminate glare. A diffuse reflector has been used over an LED light source. The diffusion cover or the diffuse reflection plate has a disadvantage of reducing the illumination by reducing the amount of light of the LED device due to the material and structural characteristics. Accordingly, there is a problem that the manufacturing cost is greatly increased by mounting a large number of high-brightness LED device to the LED lighting device to compensate for the reduced illumination.

Korean Patent No. 10-0748074 discloses an LED lighting device, which has been proposed a technique for converting the point light causing the glare of the LED lighting device to the surface light through the light induction diffusion means. In the accompanying drawings, the LED lighting device is shown as an example. Referring to FIG. 3, the LED lighting device 1 includes a screw socket connection part 11 and a housing 10 forming a light source part accommodating space 13, a light source part 20 disposed in the housing 10, and an LED. And a light induction diffusion means 30, which is installed in the LED 25 so as to induce and diffuse the light of (25). At this time, the light guide diffusion means 30 is formed of a light transmitting body, the front end portion is formed of a light transmitting resin or a transparent acrylic cylindrical body in which the inner space 35 is concave in contact with the plurality of LEDs 25. In addition, the light guide diffusion means 30 is formed with a lens unit 31 for light diffusion to the LED light receiving unit. The LEDs 25 are multi-arranged in two or more rows in the PC 23 when the size of the luminaire is large. Fixing the light guide diffusion means 30 to the housing 10 is made of an adhesive or provided with a separate fixing means. Conventional LED lighting equipment having such a configuration uses LED's refraction characteristics to induce and scatter the LED's light to the entire periphery or bottom of 360 ° in the straight direction as well as in the straight direction of irradiation. The transition is to prevent glare, so switch on. By the way, such a lighting fixture further forms a recessed groove for diffusing the light of the LED in the light induction diffusion means 30 to prevent glare and includes a reflective sheet, so that the internal structure is complicated and manufacturing cost is increased. There was a relatively high defect. Meanwhile, Korean Patent Application Publication No. 10-2008-0113499 discloses an LED lighting lens for preventing glare and an LED lighting device using the same, which is uniformly distributed through the lens when illuminating a wide range. It is for preventing glare to be distributed. 4 shows an LED lighting apparatus using the LED lighting lens. Referring to FIG. 4, a conventional LED lighting apparatus having an anti-glare function includes a lens plate 110 in which a plurality of protruding lenses 112 are arranged, and an LED 122 at a position corresponding to the protruding lenses 112. Of the LED module 120, the LED module 120, the LED module 120, and the lens plate 110 to be fastened by the screw 102, and are supported by the screw 102. . Protruding lenses 112 are disposed at the lens plate 110 at regular intervals. Each protruding lens 112 has the same shape, and one lens 112 is a protruding cylindrical shape. As the inner diameter decreases gradually from a certain height to the end, the inner diameter appears to be two different concentric circles. The end is inclined. In addition, the lens plate 110 has a low sidewall is formed to form an internal space, the coupling structure of the lens plate 110 and the LED module 120 is the LED (in the internal space formed in the lens plate 110) 122) are arranged to be deployed. The LEDs 122 are disposed in the same manner as the lens 112 in correspondence with the position of the lens 112 protruding from the PCB substrate, and are located at the groove side formed on the opposite surface of the protruding lens 112. In this coupling structure, when the power is supplied and each LED 122 is turned on, the light emitted from the LED 122 is distributed through the lens 112 protruding once, so that the light is distributed and distributed widely. It will be able to prevent glare. By the way, the luminaire is configured to illuminate after the light emitted from the LED is distributed through the protruding lens by improving the coupling structure of the lens plate and the LED module arranged a plurality of protruding lenses, the internal structure is likewise There was a drawback that the manufacturing cost is relatively high because of the complexity.

The present invention has been made to solve the problems of the prior art as described above, the light irradiated from the light source by arranging the light source in the radial lateral direction of the LED lens consisting of a front reflective layer and a side transmissive layer made of a reflective material in the past state By dispersing the light into the front of the LED lens, it is possible to provide an LED lens that can prevent glare and reduce electric energy by reducing light loss.

In order to solve the above technical problem, the present invention,

An LED lens having an integrally formed transparent area and a reflective area; And

It includes a plurality of light sources disposed radially outward of the LED lens,

The transparent region is made of a highly transparent material, the lower surface of the transparent region is formed of a parabolic curve that converges while rising radially inward of the LED lens, the reflective region is a predetermined chemical substance on the lower surface of the transparent region It provides an LED lamp formed by coating.

In addition, the present invention,

A coating made of reflective paint, resin paint, or other light reflective material with a coating thickness of about 0.1 mm to 0.5 mm was coated on the lower surface of a circular transparent area made of a highly transparent material. Drying for 1 minute to 2 minutes under temperature or drying for about 3 minutes to 5 minutes in an oven at a temperature of about 60 ° C to 90 ° C to form a reflecting zone, comprising the integral transparent region and the reflecting zone Provided is a method of manufacturing an LED lamp comprising a plurality of light sources arranged radially outside the LED lens.

The central portion of the reflective region forms a shape in which the central portion is recessed in an upward direction, and the inclination of the reflective region is about 40 ° to 65 °.

The LED lamp according to the present invention not only emits sufficiently bright light by uniformly reflecting the light irradiated from the light source without overlapping, but also has no glare and less light loss, thereby reducing electrical energy and generating relatively little heat. There are advantages. In addition, the number of components compared to the LED lighting lamp according to the prior art is simple to manufacture and the manufacturing cost is low.

1 is a view showing the structure of an LED lens according to a preferred embodiment of the present invention;
2 is a diagram schematically showing an operating state of an LED lamp employing the LED lens shown in FIG. And
3 and 4 is a view showing the LED lighting apparatus according to the prior art.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the LED lens and the LED lamp employing the same according to a preferred embodiment of the present invention.

First, referring to FIG. 1, an LED lens 10 according to a preferred embodiment of the present invention includes a transparent region 12 and a reflective region 14 integrally formed. Preferably, the LED lens 10 is made of acrylic and has a circular shape. The LED lens 10 may vary in size depending on the purpose. For example, the thickness of the LED lens 10 may be made thin to manufacture a very thin lamp.

The transparent region 12 of the LED lens 10 is made of a high transparency material. The reflective region 14 is formed by coating a specially manufactured chemical on the lower side of the LED lens 10, that is, the lower surface of the transparent region 12, based on the drawing. At this time, the lower surface of the transparent region 12 is made of a parabolic curve that converges while rising radially inward of the LED lens 10. Therefore, the reflective region 14 is formed corresponding to the lower surface of the transparent region 12. That is, the center portion of the reflective region 14 forms a shape in which the center portion is recessed in the upward direction with reference to the drawings. Preferably, the inclination of the reflective region 14 is about 40 ° to 65 °.

A specially prepared chemical is coated or applied to the reflective region 14 in a paste state. Reflective paint, resin paint or other light reflecting material may be used as the material to be applied to the reflective region 14. Coating is carried out using spraying, brushing or dipping methods, with a coating thickness of about 0.1 mm to 0.5 mm. After coating it is dried in a furnace at a temperature of about 60 ° C. to 80 ° C. for about 1 minute to 2 minutes, or in an oven at about 60 ° C. to 90 ° C. for about 3 to 5 minutes.

Meanwhile, in the present invention, Inergi Nanoflex manufactured by Inergi Corporation Limited of China and sold under the trade name "Inergi" was used as a chemical coating on the reflective region 14. Table 1 , Table 2 and Graph 1 below show the spectral reflectance measurements of the Inergi Nanoflex performed by PSB Corporation of Singapore, a chemical testing company.

TABLE 1

Table 2

Graph 1

As can be seen from Tables 1,2 and 1 , in the present invention, the trade name " Inergi " used as the chemical coating on the reflective region 14 is 95% or more of high direct reflectance and 94% or more. It exhibits high diffuse reflectance.

Next, graph 2 below shows the results of performing the UV aging test on the Inergi Nanoflex under normal lighting conditions. The test tool used was an ISO Tech Light Meter with a UV light source of Philips TUV 15W, UV-C ³ Radiation 4.6W, length 410mm and diameter 28mm.

Graph 2

As can be seen from Graph 2 , no noticeable change in the brightness performance of the test sample was observed even after 80 hours of ultraviolet exposure.

Finally, Table 3 shows the results of testing the safety of the Inergi Nanoflex.

TABLE 3

As can be seen from Table 3 , the trade name " Inergi " used as the chemical forming the reflective region 14 in the present invention does not contain harmful substances that are harmful to the human body.

In the present invention, the Inergi Nanoflex, manufactured by Inergi Corporation Limited and sold under the trade name "Inergi" as a constituent layer of the reflective region 14, is coated with a coating thickness of about 0.1 mm to 0.5 mm by spraying, brushing, or dipping. After the coating, it is dried in a furnace at a temperature of about 60 ° C. to 80 ° C. for about 1 minute to 2 minutes, or in an oven at about 60 ° C. to 90 ° C. for about 3 minutes to 5 minutes.

Alternatively, the reflective region 14 may be a mixture of resin paint and glass beads, or may be a mixture layer of other materials. The mixture layer of the sprayed resin paint and glass busy and the reflective paint layer are closely connected.

As shown in FIG. 2, a plurality of light sources 20 are disposed on the radially outer side of the LED lens 10 according to the present invention. When the light is irradiated from the light source 20 to the LED lens 10, the irradiated light first passes through the transparent region 12 of the LED lens 10 toward the center of the LED lens 10, wherein the LED lens ( It collides with the reflective region 14 formed by coating on the lower surface of 10) and is reflected. That is, the light irradiated from the light source 20 impinges on the reflective region 14 as indicated by the arrow and then is reflected and emitted to the front of the LED lens 10 (= up in the figure).

As described above, in the LED lamp according to the preferred embodiment of the present invention, the light emitted from the light source 20 is not directly irradiated forward, but passes uniformly through the transparent region 12 of the LED lens 10. It is possible to prevent glare because it is emitted to the front while reflecting and reflecting on the reflective area 14 of the LED lens 10.

In addition, in the LED lamp according to the preferred embodiment of the present invention, by varying the standard of the LED lens 10, it is also possible to manufacture a very thin lamp. In addition, the number of component parts of the LED light, such as low manufacturing cost and light loss has the advantage of saving the electrical energy.

10: LED lens 12: transparent area
14: reflection area 20: light source
30: LED light

Claims (9)

An LED lens 10 having an integrally formed transparent region 12 and a reflective region 14; And
It includes a plurality of light sources 20 disposed on the radially outer side of the LED lens 10,
The transparent region 12 is made of a high transparency material, the lower surface of the transparent region 12 is made of a parabolic curve that converges while rising radially inward of the LED lens 10, the reflective region 14 The LED lamp is formed by coating a predetermined chemical on the lower surface of the transparent region (12). The LED lamp of claim 1, wherein the LED lens (10) is made of acryl and has a circular shape, and can vary in size according to a use. The method according to claim 1, wherein the central portion of the reflective area 14 is formed in the shape of the center of the recessed in the upper direction, the inclination of the reflective area 14 is an LED lamp of 40 ° to 65 °. The LED lamp of claim 1, wherein the predetermined chemical coated on the lower surface of the transparent area is reflective paint, resin paint, or other light reflecting material, and has a coating thickness of 0.1 mm to 0.5 mm. The LED lamp of claim 4, wherein the predetermined chemical coated on the lower surface of the transparent area 12 is Inergi Nanoflex manufactured by Inergi Corporation Limited and sold under the trade name “Inergi”. Coating a predetermined chemical substance on the lower surface of the circular transparent region 12 made of a highly transparent material with a coating thickness of 0.1 mm to 0.5 mm by spraying, brushing, or immersion method, and then drying it in a furnace or oven to reflect the reflective region (14). And a plurality of light sources (20) arranged radially outward of the LED lens (10) consisting of the transparent region (12) and the reflective region (14) which are integrally formed. The method of claim 6, wherein the predetermined chemical to be coated on the lower surface of the transparent region 12 is made of reflective paint, resin paint or other light reflecting material paint, in the furnace at a temperature of 60 ℃ to 80 ℃ 1 Drying for 2 minutes to 2 minutes, or drying for 3 minutes to 5 minutes at the temperature of 60 ℃ to 90 ℃ in the oven. The method according to claim 7, wherein the predetermined chemical coated on the lower surface of the transparent region 12 is Inergi Nanoflex manufactured by Inergi Corporation Limited and sold under the trade name "Inergi". The method according to claim 6, wherein the central portion of the reflective region (14) forms a shape in which the central portion is recessed in the upward direction, the inclination of the reflective region (14) is a manufacturing method of the LED lamp.

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