KR100919461B1 - Luminous source transformed color temperature for a lighting device - Google Patents

Abstract

According to the present invention, a lens having a fluorescent layer is coupled to a device emitting a specific color, so that an illumination space can be converted into various color temperatures based on white light, and thus, a process for changing indoor lighting is more easily performed. The present invention relates to a light source device for a lighting device that converts a color temperature so as to reduce the replacement cost of the light source according to the conversion and to realize interior lighting according to various tastes of the user.

To this end, the present invention, the light source element applied to the LED; A lens disposed in front of the light emitted from the light source element, the lens having a fluorescent layer converting light of a specific color emitted from the light source element into light having a desired color temperature at a point corresponding to the point at which the light of the light source element is emitted; It provides a light source device for a lighting device which is characterized in that it comprises a color temperature conversion.

Description

Light source device for lighting equipment that converts color temperature {LUMINOUS SOURCE TRANSFORMED COLOR TEMPERATURE FOR A LIGHTING DEVICE}

The present invention relates to a light source device for lighting equipment in which the color temperature is converted.

In detail, a lens having a fluorescent layer is coupled to a device emitting a specific color, so that an illumination space can be converted into various color temperatures based on white light, and thus, a process for changing indoor lighting is more easily performed. It is possible to reduce the cost of replacing the light source due to the conversion, and to realize interior lighting according to various tastes of the user, and to maintain the long service life of the light source element applied by the LED. It is about.

As the modern residential environment develops, the interior lighting is being advanced in the interior lighting by expressing the interior lighting color, that is, the color temperature, in various white light by the fluorescent lamp or the halogen lamp. In particular, efforts to apply a light source device using a light emitting diode (LED) as a light source as the most representative lighting device of the advanced interior lighting have been steadily progressing.

For reference, the color temperature is a method of numerically displaying light of a light source. This color temperature is expressed as "Kelvin" (K) because the ideal black body is heated to dark red to orange, yellow, incandescent, and becomes blue as the temperature increases, and the hue of light can be expressed in units of absolute temperature.

In addition, the LED is a small size, high efficiency, and can emit light of vivid color. In addition, since it is a semiconductor device, there is little risk of damage, excellent initial driving characteristics and vibration resistance, and strong resistance to repetition such as ON / OFF lighting. For this reason, it is widely used for various indicators and various light sources, and ultra high brightness and high efficiency R, G, and B LEDs have been developed, and large LED displays using these LEDs have been commercialized.

The light source device implemented by the LED as described above includes a flashing circuit for blinking the LED (hereinafter, light source element) electrically and electronically. In addition, the light source element is configured to include a lens provided in front of the light emitted from the light source element to diffuse and emit light.

As the conventional light source device emits red and blue monochromatic light due to the basic characteristics of the light source device applied to the LED, a case of applying a light source device including a fluorescent light source or a halogen lamp as the main light and a sub light source using the LED light source device many.

Therefore, in order for the conventional light source device to be applied as the main light, the LED light source element should emit white light close to sunlight (5,400K at midday sunlight, 6500 to 7000K at cloudy days). It is well known that the fabrication of a light source device capable of obtaining complete white light is impossible. As a result, in order to emit white light from the light source device, a light source device emitting incomplete white light (white light by a method of converting color or electrical characteristics in a normal device fabrication process) or using light of different colors is used. A plurality of light emitting elements emitting light are combined to obtain white light.

At this time, the LED light source device and the light source device to which the plurality of light source devices emitting the incomplete white light are very expensive, causing a considerable economic burden to be applied to the main lighting of a general house or a shopping mall. In particular, the light source element emitting the incomplete white light has a problem that the above-mentioned economic burden is further increased because its service life is very short.

As a result, such a light source device emits only light for a single color similar to white, and its utility is low, and is still applied only to the above-described sub-lighting.

The present invention has been invented to solve the above problems. Therefore, the present invention improves the configuration of the lens coupled to the light source element of a single color (mainly referred to as R (red), G (green), B (blue) color) is inexpensive to implement to emit white light, white light In addition, the object of the present invention is to provide a light source device capable of emitting light of various color temperatures, and to maintain a long service life of a single color light source element during color temperature conversion.

In order to achieve the above object, the present invention has the following configuration.

The present invention, the light source element applied to the LED; A lens disposed in front of the light emitted from the light source element, the lens having a fluorescent layer converting light of a specific color emitted from the light source element into light having a desired color temperature at a point corresponding to the point at which the light of the light source element is emitted; It is configured to include.

At this time, the fluorescent layer is formed on the surface of the lens is mixed with a raw material having a light transmission characteristics, and a fluorescent pigment for converting the light color of the light source element to the outside of the converted color light. Here, the fluorescent layer is selectively used as a material having a light transmitting property, a single material of glass, silicon, PMMA, PC, PS, PET, SAN, PVC or a mixture of two or more.

In addition, the present invention may be configured between the fluorescent layer and the lens is formed with a light diffusion layer made of a light diffusing agent to scatter the light passing through the fluorescent layer to diffuse light. Alternatively, the present invention may be configured such that the fluorescent layer is prepared by mixing a light diffusing agent to scatter light to diffuse light. In particular, the present invention may be produced by mixing the dye to reconvert the color temperature of the light passed through the fluorescent layer of the lens.

At the same time, according to the present invention, a groove is formed in the lens so that an end of the light emitting element is emitted, and a fluorescent layer may be formed on an inner surface of the groove. In addition, the lens may be formed in the form of a beam having a length corresponding to the side surface of the light guide plate to be applied to the light guide plate for performing surface emission.

Specifically, the present invention may be configured to further include a support for mounting to a light product, such as a lamp, a lantern, a stand mounted with a lens coupled to the light source element. By applying this, the present invention is a lens coupled to the light source element is mounted, the support is formed with a groove at the point where the lens is mounted; The reflective surface is formed by applying a light reflecting material applied to the inner surface of the groove of the support or a reflector solidified with the light reflecting material.

At the same time, the present invention is provided with at least one light source element in the light source housing that receives the external power supply to the light source element, the lens is coupled to the end of the light source housing that the light of the light source element is emitted, the light source Opposite ends of the housing and the lens may be provided with coupling portions for correspondingly coupling to each other.

As described above, the present invention, by applying a light source element of a single color and forming a fluorescent layer for converting the color temperature of the illumination to the lens to emit white light and light of various color temperatures, the main according to the white light emission It can be applied as lighting, and the effect of realizing various interior lighting suitable for various tastes of consumers is obtained.

In addition, the present invention is inexpensive, and the color temperature conversion of the light is easily performed according to the replacement of the lens, thereby significantly reducing the production cost of the product and the cost of replacing the interior lighting, thereby obtaining economic benefits.

In particular, since the present invention is carried out by the replacement of the lens that the color temperature conversion does not affect the life of the LED light source element, the long service life which is characteristic of the monochromatic light source element (longer life compared to the light source element emitting white light) Even when the white light is emitted to maintain white light, its service life is maintained for a long time, so that it is possible to obtain economic benefits.

1 is a perspective view showing a light source device according to a first embodiment of the present invention.

2 is a front view showing a light source device according to a second embodiment of the present invention;

3 is a front view showing a light source device according to a third embodiment of the present invention;

4 is a perspective view showing a light source device according to a fifth embodiment of the present invention;

5 is a perspective view showing a light source device according to a sixth embodiment of the present invention;

6 is a perspective view showing a light source device according to a seventh embodiment of the present invention;

7 is a sectional view showing a light source device according to an eighth embodiment of the present invention;

8 is a sectional view showing a light source device according to a ninth embodiment of the present invention;

9 is a perspective view showing a light source device according to a tenth embodiment of the present invention;

Description of the main parts of the drawing

100: light source device 200, 200 ', 200 ": lens

210, 210 ': fluorescent layer 211: light diffusing layer

212: light diffusing agent 220: coupling groove

300: light source element 400, 400 ': support

420: reflection surface P: light guide plate

<First Embodiment>

1 is a perspective view showing a light source device according to a first embodiment of the present invention.

Referring to the drawings, the light source device 100 of the first embodiment is composed of a lens 200 with a fluorescent layer 210 and a light source element 300.

When the light is transmitted from the light source element 300, the lens 200 is configured to diffuse and reflect the light therein. As described above, the lens 200 is formed in a conical shape, and the fluorescent layer 210 is disposed on the surface to which the light source element 300 is coupled by applying or bonding.

At this time, the fluorescent layer 210 is excited by light of a specific color emitted to the light source device 300 is manufactured to emit white light. To this end, the fluorescent layer 210 may be formed of a material having a characteristic of transmitting light and a specific color of light in order to convert light of a specific color emitted from the light source device 300 into light having a desired color temperature (mainly white light). It is formed by mixing a fluorescent pigment suitable for converting into light of a color temperature.

Here, the raw material may be applied in various materials. Specifically, the various materials include glass, silicone, poly methyl methacry (PMMA), polycarbonate (PC), polystyrene (PS), polyethylene terephthalte (PET), SAN (= AS, acrylonitrile styrene), PVC (Polyvinyl Chloride), and the like. Applicable In particular, the raw material may be independently applied to one of the materials presented, it may be applied by mixing two or more of these materials.

In addition, it is natural that the phosphor is classified as PL (Photoluminescence), and it is not limited to the application range such as a yag system, a non-yag system, a tungsten system, and the like.

The fluorescent layer 210 is formed by applying a gel solution to the lens 200 surface. Here, the fluorescent layer 210 can be produced by combining the film-shaped member solidifying the gel-like liquid, which is to select the above-described coating coating process in consideration of the fine spacing, manufacturing time, cost, etc. of the bonding surface desirable.

In addition, the fluorescent layer 210 may be configured by a method such as double injection or insert injection so that the fluorescent layer 210 can be simultaneously ejected at the same time as the lens 200 is ejected when the lens 200 is ejected.

In the substrate of the above embodiment, the fluorescent layer 210 includes all of the fluorescent layers having red, green, and blue light emitting characteristics, respectively, and for changing the light of the light source device 300. Red-Green-Blue phosphor material will be used as a general concept. For reference, the fluorescent layer 210 is characterized by producing a desired color temperature, starting with white light through an appropriate combination of light emitting nanoparticles and an inorganic fluorescent layer. The light emitting nanoparticles may include at least one selected from the group consisting of red light emitting nanoparticles, green light emitting nanoparticles, and blue light emitting nanoparticles, and the inorganic fluorescent layer may be a red inorganic phosphor, a green inorganic phosphor, and a blue inorganic phosphor. At least one selected from the group consisting of.

The light source device 300 is an LED as described above is applied, specifically, the light source device 300 is preferably applied to the blue, red, green LED of the most basic form that emits light.

In particular, the light source device 300 may be made of a plate-like body of a circular or polygonal shape, as shown in the drawing, is in contact with the surface on which the fluorescent layer 210 of the lens 200 is formed. That is, the light source device 300 is adhesively bonded to the surface on which the fluorescent layer 210 of the lens 200 is formed, or in consideration of a section in which light is emitted, the lens 200 is formed by a coupling member such as a small bis or bolt. It can be combined with

Second Embodiment

Fig. 2 is a front view showing the light source device of the second embodiment.

Referring to the drawings, the light source device 100 presents a configuration in which the light diffusion layer 211 is formed between the lens 200 and the fluorescent layer 210. In this case, the light diffusing layer 211 may be formed by applying a light diffusing agent to the surface of the lens 200 or by mixing it with a resin to solidify it. Alternatively, the fluorescent layer 210 may be solidified, and the light diffusion layer 211 may be formed on the surface facing the lens 200.

The light diffusing layer 211 scatters the light passing through the fluorescent layer 210 to diffuse the emitted light, thereby increasing the luminance efficiency.

Third Embodiment

Fig. 3 is a front view showing the light source device of the third embodiment.

Referring to the drawings, the light source device 100 does not form the light diffusing layer 211 shown in the second embodiment as a separate layer, but mixes the light diffusing agent 212 when the fluorescent layer 210 is manufactured. It is configured to form a fluorescent layer 210 to which the light diffusion function is added by scattering. In this case, the fluorescent layer 210 may be formed by applying or solidifying the surface of the lens 200 as in the first embodiment to form an adhesive composition.

In the fluorescent layer 210, light emitted by scattering light passing through the fluorescent layer 210 is diffused to increase luminance efficiency. In particular, since the fluorescent layer 210 includes a light diffusing function, since the fluorescent layer 210 and the light diffusing layer 211 of the second embodiment are formed to have a thickness smaller than the thickness of the stacked layer, light transmission efficiency can be improved. .

Fourth Embodiment

The light source device 100 of the fourth embodiment is designed by mixing dyes of a specific color during fabrication (mainly by injection) of the lens 200 in the first to third embodiments and the following embodiments. It is possible to change the color temperature more stably, or to perform reconversion of the color temperature.

Fifth Embodiment

4 is a perspective view showing a light source device according to a fifth embodiment of the present invention.

Referring to the drawings, the light source device 100 of the fifth embodiment maintains the basic configuration in which the light source element 300 is coupled to the surface on which the fluorescent layer 210 'of the lens 200 is formed, and the lens 200 and the light source are The coupling configuration with the device 300 is shown in different ways.

To this end, the light source device 100 has a coupling groove 220 is formed on the surface of the lens 200 for the light source device 300 is coupled. Corresponding to the coupling groove 220, the light source device 300 is formed with a protrusion 310 protruding in the direction in which light is emitted. That is, the light source device 300 is configured to maintain the state in which the protrusion 310 is fitted into the coupling groove 220 of the lens 200 and fixedly coupled thereto.

Here, a fluorescent layer 210 'is coated on the inner circumferential surface of the coupling groove 220 to convert the specific color light emitted from the light source device 300 into light having various color temperatures. In this case, the fluorescent layer 210 'may include the light diffusing function shown in the second to fourth embodiments, and is formed by mixing the synthetic resin and the fluorescent pigment as described in the first embodiment. It is preferable to form by the process of apply | coating and coating a gel-like liquid.

In addition, in order to maintain the state in which the light source device 300 is fixedly coupled to the lens 200 more firmly, the light source device 300 is fixed to the lens 200 or the projection 310 of the light source device 300. A screw thread may be formed on a portion of the outer surface, and a screw groove may be formed on the inner circumferential surface of the lens 200 corresponding thereto to be screwed together.

Sixth Embodiment

5 is a perspective view showing a light source device according to a sixth embodiment of the present invention.

Referring to the drawings, the light source device 100 of the sixth embodiment presents a configuration applied to the light guide plate P for performing surface emission.

To this end, the light source device 300 includes a lens 200 ′ in the form of a beam of rectangular long bars. The light source device 300 is coupled to the lens 200 'as in the first embodiment, and the fluorescent layer 210 (second to fourth) is positioned at the point of the lens 200' to which the light source device 300 is coupled. Including the light diffusing function in the embodiment) is formed and configured. In this case, the lens 200 ′ is mainly coupled to a plurality of light source elements 300 to supply light to at least one surface of the light guide plate P having a rectangular shape, and thus, the number of coupling of the light source elements 300. Naturally, the fluorescent layer 210 is formed in correspondence with the.

In the light source device 100 configured as described above, light of a specific color emitted from the light source element 300 passes through the fluorescent layer 210 and is converted into light having a desired color temperature (typically white light) and incident to the lens 200 '. do. The light incident on the lens 200 'is diffusely reflected inside the lens 200' and supplied to the light guide plate P, so that the light guide plate P is surface-emitted.

At this time, the coupling of the light source device 300, the lens 200 ′, and the light guide plate P may be provided in various embodiments such as bonding, fusion, or coupling by a fastening member such as a separate vis, bolt.

Seventh Example

6 is a perspective view showing a light source device according to a seventh embodiment of the present invention.

Referring to the drawings, the light source device 100 of the seventh embodiment proposes a configuration for coupling the light source element 300 to the lens 200 ″ when applied to the light guide plate P for performing surface emission.

To this end, the lens 200 ″ has a beam shape as in the sixth embodiment, and the coupling groove 220 is formed at the point where the light source element 300 is coupled as in the first embodiment. . In this case, the light source device 300 also has a protrusion 310 corresponding to the coupling groove 220 of the lens 200 ″. In particular, a fluorescent layer 210 '(including the light diffusing function in the second to fourth embodiments) is formed on the inner circumferential surface of each coupling groove 220.

At this time, the fluorescent layer 210 'is preferably formed by applying and coating a gel-like liquid formed by mixing a synthetic resin and a fluorescent pigment as described in the first embodiment. In addition, in order to maintain the state in which the light source device 300 is fixedly coupled to the lens 200 '', the light source device 300 is adhesively fixed to the lens 200 '' as in the fifth embodiment. Alternatively, a screw thread may be formed on a portion of the outer surface of the protrusion 310 of the light source element 300, and a screw groove may be formed on the inner circumferential surface of the lens 200 ″ corresponding thereto to be screwed together.

Eighth Embodiment

7 is a sectional view showing a light source device according to an eighth embodiment of the present invention.

Referring to the drawings, the light source device 100 of the eighth embodiment proposes a configuration in which the configuration in which the light source element 300 and the lens 200 are combined is applied to a lamp, a lantern, a lamp, or the like.

To this end, the light source device 300 is provided with a support 400 to which the lens 200 coupled with the light source device 100 is mounted and fixed. At this time, the drawing shows a configuration in which the light source device 300 is applied to the lantern, the reference numeral 500 in the figure is a housing on which the support 400 is mounted, 600 is coupled to the housing 500, the light source element ( It shows a lantern body with a built-in circuit and a battery for flashing 300).

As described above, the light source device 100 applied to the lantern may be applied to a light source when the light source device 300, the lens 200, and the supporter 400 are installed on the wall of a building, and may be applied to the head of the lighting stand. Will be. In particular, the configuration of the light source device 300 and the lens 200 may be mounted on the support 400 in order to emit light of higher luminance and illuminance.

<Ninth Embodiment>

8 is a sectional view showing a light source device according to a ninth embodiment of the present invention.

Referring to the drawings, the light source device 100 according to the ninth embodiment is applied to a light source, a lantern, a lamp, and the like in which the light source device 300 and the lens 200 are coupled to each other. A configuration is proposed so that light of a desired color temperature can be diffused and irradiated.

To this end, the light source device 100 forms a substantially hemispherical groove 410 at the point where the lens 200 is coupled in the support 400 'of the eighth embodiment, and the inner surface of the groove is the reflective surface 420. It is configured to be formed.

That is, the light source device 100 is a configuration in which the support 400 'and the reflection surface 420 are further added, and the support 400' is mounted with the lens 200 as described above. The slope 420 is formed by coating a light reflecting material on the inner surface of the groove 410 at the point where the lens 200 is mounted or by combining a reflector solidified with the light reflecting material.

Such a light source device 100 is a configuration for irradiating brighter light than the illumination product produced by the configuration of the eighth embodiment, it can be applied when implementing a large-scale lighting product.

Tenth Example

9 is a perspective view showing a light source device according to a tenth embodiment of the present invention.

Referring to the drawings, the light source device 100 of the tenth embodiment is applied in the eighth and ninth embodiments to present a configuration that is installed on the ceiling or wall, or applied to a product such as an electric stand.

The light source device 100 receives power from an external source, transmits power to the light source device 300, and performs a base function for installing the light source device 300, and the light source housing 700. The lens 800 is coupled to the light emitting device 300 to convert the light emitted from the light source device 300 into a desired color temperature and to diffuse the light.

At this time, the light source housing 700 is provided with one or more light source elements 300 (three in the figure) is configured to obtain the desired illuminance as the light is emitted.

The lens 800 is coupled to the end of the light source housing 700 from which the light of the light source element 300 is emitted, and at the point opposite to the light source element 300, the fluorescent layer of the first to fourth embodiments ( 210 or a combination of the fluorescent layer 210 and the light diffusion layer 211 is applied.

In particular, coupling ends 900 are formed at each end of the light source housing 700 and the lens 800 to be coupled to each other. The coupling portion 900 may be implemented as a fitting configuration in which one side of the light source housing 700 and the lens 800 is inserted into the other side as shown in the drawing, or they may be formed in a screw coupling configuration as an applied configuration. Furthermore, in order to obtain a more firm coupling force may be manufactured by adding a separate configuration, such as bolts, clamps.

Claims (11)

A light source element applied to the LED; A lens disposed in front of the light emitted from the light source element, the lens having a fluorescent layer converting light of a specific color emitted from the light source element into light having a desired color temperature at a point corresponding to the point at which the light of the light source element is emitted; Including; The fluorescent layer is formed on the surface of the lens is mixed with a raw material having a light transmission characteristics and the fluorescent pigment for converting the light color of the light source element to the outside of the converted color light, the fluorescent layer is light transmission As a raw material with properties, it can be selectively used as a single material of glass, silicon, PMMA, PC, PS, PET, SAN, PVC, or a mixture of two or more. A light diffusing layer made of a light diffusing agent is formed between the fluorescent layer and the lens to scatter the light passing through the fluorescent layer and diffuses the light, or the fluorescent layer is formed by mixing the light diffusing agent and scattering the light. Become, The lens is a light source device for a lighting device is a color temperature conversion, characterized in that the dye is mixed in order to convert the color temperature of the light passing through the fluorescent layer. delete delete delete delete delete The method of claim 1, The lens is a light source device for converting the color temperature is characterized in that the groove is formed so that the end of the light emitting element is emitted, the fluorescent layer is formed on the inner surface of the lens. The method of claim 1, And the lens is formed in the form of a beam having a length corresponding to that of the side of the light guide plate to be applied to the light guide plate for performing surface light emission. The method of claim 1, The light source device for converting a color temperature, characterized in that the lens coupled to the light source element is mounted and further comprises a support for being installed in a lighting product such as a lamp, lantern, stand. The method of claim 1, A support having a lens coupled to the light source element and having a groove formed at a point at which the lens is mounted; A reflecting surface formed by coating a light reflecting material on the inner surface of the groove of the support or combining a reflector solidified with the light reflecting material; Light source device for converting a color temperature, characterized in that installed in the lighting products such as lamps, lanterns, stands further comprising. The method of claim 1, One or more light source elements are installed in a light source housing that receives external power and transmits the light to the light source element, and a lens is coupled to an end of the light source housing from which the light of the light source element is emitted, and opposes the light source housing and the lens. Light source device for converting the color temperature, characterized in that the coupling portion is formed at each end to be correspondingly coupled to each other.