KR20180054165A - Led lighting device - Google Patents

Abstract

The present invention relates to a functional LED lighting device. The functional LED lighting device includes a light source part emitting white light and an optical amplification part which receives white light emitted from the light source part, and selectively amplifies light intensity in a predetermined wavelength range. It is easier to implement various functions.

Description

{LED LIGHTING DEVICE}

The present invention relates to a functional LED lighting apparatus, and more particularly, to a functional LED lighting apparatus capable of easily implementing various functions in addition to a lighting function.

2. Description of the Related Art Recently, various lighting apparatuses using a light emitting diode (LED) as a light source having a low power consumption and a long life have been developed and released.

Here, the light emitting diode is made by injecting a small number of carriers (electrons or holes) by using a PN junction structure of a semiconductor having advantages such as a high response speed, low power consumption and long lifetime, and emitting light by recombination thereof Which consumes about 1/10 of the power consumption of conventional incandescent bulbs and halogen bulbs for illumination, and has a merit that the electric energy can be greatly reduced.

On the other hand, various studies have been made on a method of adding various functions to such a lighting apparatus. For example, various diseases and diseases using illumination are being treated, and measures for improving the user's skin are being studied.

However, in the case of such a device, there is a problem that it is limited in use because it is intended to perform a specific function, and that the device is large, heavy, and expensive. Further, the structure of the apparatus is so complicated that it is difficult for a general person to use and maintenance is difficult.

Published Japanese Patent Application No. 10-2013-0109771 (published Oct. 20, 2013)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a functional LED illumination device capable of easily implementing various functions.

According to an aspect of the present invention, there is provided a light source device including: a light source unit emitting white light; And an optical amplifying unit that receives white light emitted from the light source unit and selectively amplifies light intensity in a predetermined wavelength range.

The optical amplifying unit may further include a light diffusing unit disposed behind the optical amplifying unit and adapted to diffuse light passing through the optical amplifying unit.

Preferably, the light diffusion unit is attached to the rear surface of the optical amplification unit.

The light source may be a white LED.

The light source unit may include a blue LED; And a wavelength filter part provided between the blue light emitting diode and the optical amplifying part and forming white light from the blue light emitting diode.

The optical amplifying part may include 0.1 wt% to 20 wt% of A ₂ SiO ₄ : Eu ^{2 +} based on the total weight, and A is at least one of Sr, Ba, Ca and Mg.

Further, the optical amplification unit 0.1wt% to 20wt% of the A ₃ SiO _5, based on the total weight: Eu ^{2 +,} or Ca-α-SiBION: contains Eu ^2+, wherein A or B is Sr, Ba, Ca And Mg.

The optical amplifying part may include CaS :: Eu ^{2 +} or CaAISiN ₃ : Eu ^{2 +} in an amount of 0.1 wt% to 20 wt% based on the total weight, and A or B may include at least one of Sr, Ba, Ca, and Mg One is preferable.

Preferably, the light source unit is housed in the groove, and the optical amplifying unit closes the groove with the outside.

Also. And a reflection sheet mounted on a wall surface of the groove and adapted to reflect light reflected from the optical amplification unit to the optical amplification unit side, the reflection sheet being emitted from the light source unit.

The reflector may further include a reflector disposed behind the optical amplifying unit and reflecting the light deviated from the predetermined optical path from the light passing through the optical amplifying unit toward the predetermined optical path.

A body portion having a groove formed on one side thereof to be recessed inward; A rotation unit provided so as to be rotatable while facing the light source unit, the plurality of optical amplification units being mounted apart from each other along virtual circles; And a control unit for adjusting the degree of rotation of the rotary unit according to a user's request, wherein the light source unit is accommodated in the groove.

The light emitting device may further include a reflective sheet mounted on a wall surface of the groove and configured to reflect the light emitted from the light source unit and reflected from the optical amplifying unit toward the optical amplifying unit.

The reflector may further include a reflector disposed behind the optical amplifying unit and reflecting the light deviated from the predetermined optical path from the light passing through the optical amplifying unit toward the predetermined optical path.

According to the present invention, the functionality of light can be improved by selectively amplifying light of a desired wavelength range.

Through one light source, various functions such as whitening, inflammation relief, and wrinkle improvement can be realized.

FIG. 1 is a cutaway view schematically showing a functional LED lighting apparatus according to a first embodiment of the present invention,
FIG. 2 is a cross-sectional view schematically showing an enlarged portion of the functional LED lighting apparatus of FIG. 1 in which the light source unit is mounted,
FIG. 3 is a cross-sectional view schematically showing an enlarged portion of the functional LED lighting apparatus of FIG. 1 where another light source unit is mounted,
FIG. 4 is a graph schematically illustrating amplification effect of the first optical amplifying unit in the functional LED lighting apparatus according to FIG. 1,
FIG. 5 is a graph schematically showing amplification effect by the second optical amplifying unit in the functional LED lighting apparatus according to FIG. 1,
FIG. 6 is a graph schematically showing amplification effect of the third optical amplifying unit in the functional LED lighting apparatus according to FIG. 1,
7 is a perspective view schematically showing a functional LED lighting apparatus according to a modification of the first embodiment of the present invention,
8 is a cutaway view schematically showing a functional LED lighting apparatus according to a second embodiment of the present invention,
Fig. 9 is a bottom view schematically illustrating the rotation part in the functional LED lighting device according to Fig. 8;

Prior to the description, components having the same configuration are denoted by the same reference numerals as those in the first embodiment. In other embodiments, configurations different from those of the first embodiment will be described do.

Hereinafter, a functional LED lighting apparatus according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is an exploded view schematically showing a functional LED lighting apparatus according to a first embodiment of the present invention.

Referring to FIG. 1, the functional LED lighting apparatus 100 according to the first embodiment of the present invention performs general lighting functions, and can amplify light intensity of a specific wavelength range band desired by a user, The light diffusing portion 130, the body portion 140, the reflection sheet 150, and the reflector 160. The light diffusing portion 130 may include a light source 110, an optical amplifying portion 120, a light diffusing portion 130,

The light source 110 emits white light.

FIGS. 2 and 3 are enlarged cross-sectional views of a portion of the functional LED lighting apparatus shown in FIG. 1 where the light source unit is mounted.

Referring to FIG. 2, in the first embodiment of the present invention, the light source unit 110 may be provided with a white LED.

As shown in FIG. 3, a blue LED 111 is disposed between the blue LED 111 and the optical amplification unit 120, and a wavelength filter unit (not shown) 112 to form a white light from a blue LED 111.

Here, the wavelength filter unit 112 may be formed of a phosphor, and a phosphor that forms a white light from a blue LED (111) is known, so a detailed description is omitted here.

The optical amplification unit 120 is provided with white light emitted from the light source unit 110 and selectively amplifies the light intensity in a predetermined wavelength band required by the user.

According to the first embodiment of the present invention, the optical amplifying unit 120 may be provided with a phosphor having a specific wavelength to improve light extraction efficiency of a specific wavelength.

FIG. 4 is a graph schematically showing the amplifying effect of the first optical amplifying unit in the functional LED lighting apparatus of FIG. 1, FIG. 5 is a graph showing the amplifying effect of the second optical amplifying unit in the functional LED lighting apparatus of FIG. FIG. 6 is a graph schematically showing amplification effect by the third optical amplifying unit in the functional LED lighting apparatus according to FIG. 1; FIG.

For example, in order to improve the light intensity of the wavelength region band of approximately 430 nm to 480 nm, the optical amplifying portion 120 may include 0.1 wt% to 20 wt% of A ₂ SiO ₄ : Eu ^{2 +} based on the total weight. Here, it is preferable that A is at least one of Sr (strontium), Ba (barium), Ca (calcium), and Mg (magnesium).

Hereinafter, the optical amplifying unit 120 will be referred to as a first optical amplifying unit 121.

That is, as shown in FIG. 4, the first optical amplifying part 121 receives the white light and increases the intensity of the light in the blue light area and emits the light to the outside.

On the other hand, in order to improve the light intensity in the wavelength region band of approximately 550 nm to 600 nm, the optical amplifying portion 120 is formed of 0.1 wt% to 20 wt% of A ₃ SiO ₅ : Eu ^{2 +} or Ca- : Eu < ^{2 +} >. Here, A or B is preferably at least one of Sr (strontium), Ba (barium), Ca (calcium), and Mg (magnesium).

Hereinafter, the optical amplifying unit 120 will be referred to as a second optical amplifying unit 122.

That is, as shown in FIG. 5, the second optical amplifying unit 122 receives the white light and increases the intensity of the light in the yellow light region and emits the light to the outside.

On the other hand, in order to improve the light intensity of the wavelength band of approximately 600 nm to 700 nm, the optical amplifying part 120 may include CaS :: Eu ^{2 +} or CaAISiN ₃ : Eu ^{2 +} of 0.1 wt% to 20 wt% . Here, A or B is preferably at least one of Sr (strontium), Ba (barium), Ca (calcium), and Mg (magnesium).

Hereinafter, the optical amplifying unit 120 will be referred to as a third optical amplifying unit 123.

That is, as shown in FIG. 6, the third optical amplifying unit 123 receives the white light and increases the intensity of the light in the red light region and emits the light to the outside.

Of course, it is of course possible to provide an optical amplification unit 120 that can amplify the light intensity of another wavelength band in addition to the optical amplification unit 120 described above.

The light diffusing unit 130 receives and diffuses light having an increased light intensity in a predetermined wavelength region through the optical amplifying unit 120.

That is, the color and brightness of light passing through the optical amplification unit 120 can be uniformly controlled through the light diffusion unit 130.

The light diffusing unit 130 may be attached to the rear surface of the optical amplifying unit 120 so that the light emitted from the light source unit 110 passes through the optical amplifying unit 120, ), But is not limited thereto.

The body portion 140 serves as a main frame of the functional LED illumination device 100 according to the first embodiment of the present invention, and a groove 141 is formed to be recessed inward from the outer surface.

Meanwhile, the body part 140 may be provided as a heat sink so as to absorb and discharge heat generated from the light source part 110.

The light source unit 110 may be disposed in the groove 141 and the light amplification unit 120 may be disposed to finish the groove 141 from the outside.

The light source unit 110 is disposed on the innermost side of the groove 141 and one surface of the light diffusion unit 130 attached to the optical amplification unit 120 is flush with one surface of the body 110 As shown in FIG. Accordingly, the light source unit 110 can be sealed inside the groove 141.

Here, the optical amplifying unit 120 may be detachably provided on the side of the body unit 140, and may include the first optical amplifying unit 121, the second optical amplifying unit 122, Any one of the amplifying parts 123 can be mounted on the body part 110. FIG.

The reflective sheet 150 is provided on the inner wall surface of the groove 141 and reflects the light emitted from the light source unit 110 to the groove 141 side from the optical amplification unit 120 to the optical amplification unit 120 side will be.

The light efficiency of the present apparatus can be improved by increasing the amount of light passing through the optical amplifying unit 120 through the reflective sheet 150. [

The reflector 160 is provided at the rear end of the optical amplifying unit 120 or more precisely at the rear end of the light diffusing unit 130 and reflects light deviating from the predetermined optical path among the light diffused through the light diffusing unit 130 And reflects the light to the set optical path side.

In other words, in the process of diffusing the light amplified by the light diffusion unit 130 in a predetermined wavelength region, light that deviates from a predetermined optical path, which is a light path intended by the user, may be generated. In this way, the reflector 160 is provided to return the light separated from the predetermined optical path to the optical path again.

According to the first embodiment of the present invention, the reflector 160 is provided so as to surround a part of the predetermined optical path, and may be provided so as to increase in diameter as the distance from the light source unit 110 increases.

Meanwhile, the functional LED lighting apparatus 100 'according to the modification of the first embodiment of the present invention can be used as a vanity stand.

7 is a perspective view schematically showing a functional LED lighting apparatus according to a modification of the first embodiment of the present invention.

The body portion 140 'extends substantially along the direction of gravity, and the groove portion (not shown) is also recessed inwardly from at least one side of the body portion 140' and extends substantially along the gravity direction, And extend substantially along the gravitational direction.

On the other hand, the surface on which the groove (not shown) is formed is assumed to be the front surface of the body portion 140 '.

Here, the optical amplification unit 120 'and the optical diffusion unit 130' are mounted on a groove (not shown) formed on the front surface of the body part 140 ', and the body part 140' is provided below the body part 140 ' And a support portion 160 'for supporting the center of the body portion 140'.

The user can expect a lighting effect and a predetermined function through the front face of the body portion 140 'by activating the functional LED lighting apparatus 100' according to the modification of the first embodiment of the present invention, Can be expected to remove such as skin regeneration and acne removal.

Hereinafter, the operation of the first embodiment of the functional LED lighting apparatus 100 will be described.

When white light is emitted through the light source 110, the white light is provided to the optical amplifier 120.

Since each optical amplifier 120 includes a phosphor having a specific wavelength so that the light extraction efficiency of a specific wavelength range can be increased, the user can select each of the optical amplification units 120 according to need, It is possible to amplify the light intensity of the specific wavelength region band having the function.

However, some of the white light can be reflected from the optical amplifying part 120 without passing through the optical amplifying part 120. This light is reflected by the reflective sheet 150 provided on the wall surface of the groove 141 and is provided to the optical amplification part 120 side again.

Therefore, substantially all of the white light emitted from the light source unit 110 can pass through the optical amplification unit 120.

The light passing through the optical amplifying unit 120 is provided to the light diffusing unit 130 attached to the rear surface of the optical amplifying unit 120 and is diffused in the process of passing through the light diffusing unit 130, And is uniformly adjusted.

Here, some light may be generated that is excessively diffused while passing through the light diffusion unit 130, and deviates from a predetermined optical path required by the user.

The reflector 160 may be provided at the rear end of the light diffusing unit 130 so that the light is reflected to the predetermined optical path side.

The diameter of the reflector 160 increases toward the rear, so that the reflection angle of the light entering the reflector 160 can be appropriately adjusted.

On the other hand, the light that has undergone the above-described process can reach the user and provide the user with both a lighting function and a function that can be expected in the amplified wavelength band.

Next, a functional LED lighting apparatus 200 according to a second embodiment of the present invention will be described.

8 is an exploded view schematically showing a functional LED lighting apparatus according to a second embodiment of the present invention.

Referring to FIG. 8, the functional LED illumination device 200 according to the second embodiment of the present invention performs general illumination function, and also amplifies light intensity of a specific wavelength range band desired by a user, The light diffusing portion 130, the body portion 240, the rotation portion 245, the reflection sheet 150, the reflector 160, and the light diffusing portion 130, the optical amplifying portion 120, the light diffusing portion 130, And may include a controller 270.

The light source unit 110, the optical amplifier unit 120, and the light diffusion unit 130 are substantially the same as those described in the first embodiment, and a detailed description thereof will be omitted here.

The body 240 serves as a main frame of the functional LED lighting apparatus 200 according to the second embodiment of the present invention and includes a groove 241 which is recessed inward from the outer surface and accommodates the light source unit 110 .

Meanwhile, the body part 240 may be provided as a heat sink so as to absorb and release heat generated from the light source part 110.

Fig. 9 is a bottom view schematically illustrating the rotation part in the functional LED lighting device according to Fig. 8;

9, the rotation unit 245 is rotatably provided on the rear side of the body 240, and a plurality of optical amplification units 120 are disposed on the outer surface of the rotation unit 245 so as to be spaced apart from each other along a virtual circle.

Here, the rotation unit 245 is arranged such that any one of the plurality of optical amplification units 120 is arranged on a predetermined optical path, and the rotation center is arranged to be shifted from the predetermined optical path.

That is, any one of the optical amplification units 120 required by the user in accordance with the rotation of the rotation unit 245 is disposed on a predetermined optical path, and the optical intensity .

Since the reflective sheet 150 and the reflector 160 are substantially the same as those described in the first embodiment, a detailed description thereof will be omitted.

The controller 270 adjusts the degree of rotation of the rotation unit 245 according to a user's request to control the light intensity of the wavelength band band required by the user so as to improve the light intensity.

In more detail, the user can input a signal to provide a predetermined function to the functional LED illumination device 200 according to the second embodiment of the present invention, and the corresponding signal is provided to the control unit 270 side, 245 can be adjusted.

Accordingly, the rotation unit 245 can arrange the optical amplifying unit 120 capable of amplifying the light intensity of the specific wavelength region corresponding to the function, on the predetermined optical path, The light intensity of which is amplified can be provided to the user.

Meanwhile, the controller 270 may adjust the operation time of the light source unit 110 as needed. In other words, there is an appropriate time for optimizing each function, and the operation time of the light source unit 110, that is, the on / off time can be adjusted so that light can reach the user within the appropriate time range.

The operation of the second embodiment of the functional LED illumination device 200 is substantially the same as that described in the first embodiment, and thus a detailed description thereof will be omitted here.

The functional LED illumination device of the present invention can selectively enhance light intensity in various light regions, and the following effects can be obtained in each light region.

First, the following effects can be obtained in the blue light region.

Blue light is a color that stabilizes the psychology of a person and secretes neurotransmitters that stabilize the brain (about 11). In contrast to red light, it reduces pulse, induces deep and long breathing, reduces sweating, lowers body temperature and suppresses appetite. In addition, blue light is targeted to bacteria that play a central role in causing acne, producing active oxygen that kills P. acnes bacteria without damaging the skin.

Therefore, the first optical amplifying unit 121 that increases the light intensity with respect to the light in the blue light region can obtain a skin disease improving effect such as acne.

Further, the following effects can be obtained in the yellow light region.

That is, yellow light affects cell proliferation and mobility, which are helpful in skin regeneration and dental rehabilitation. And enhances the function of the cell layer, and effects such as wound healing, scar prevention, wrinkle improvement and aging prevention can be obtained. Further, yellow light has a melanin inhibiting ability, so that it is possible to prevent burns, stains, burns, and the like caused by the sunlight, thereby obtaining a whitening effect.

Therefore, by the second optical amplifying section 122 which increases the light intensity with respect to the light in the yellow light region, wrinkle improvement and whitening effect can be obtained.

In the red light region, the following effects can be obtained.

The pituitary gland, the endocrine gland, moves when the body is exposed to the red light. In a very short time, chemical signals are transmitted from the pituitary gland to the adrenal glands and secrete epinephrine (adrenaline). This adrenaline flows through the bloodstream and causes certain physiological changes with the influence of metabolism. In other words, when the pressure is increased, the back clap increases and the respiration rises, the pulse rate increases, the respiration becomes worse, the blood flow becomes faster, and the blood circulation becomes faster. In addition, red light can obtain effects such as elasticity of skin, promotion of subcutaneous tissue and fat metabolism, antinociception, and anti-inflammation.

Therefore, by increasing the light intensity with respect to the light in the red light region, the third light amplifying unit 133 can obtain the effect of anti-inflammation or the like.

The functional LED illumination device of the present invention may include a first optical amplification part 121, a second optical amplification part 122 and a third optical amplification part 123 in the rotation part 245. Therefore, by adjusting the degree of rotation of the rotating portion 245, the light intensity can be improved for any one of blue light, yellow light, and red light. As a result, the first optical amplifier 121, the second optical amplifier 122, the third optical amplifier 123, and the third optical amplifier 123 ) Can be selected, so that the convenience of function selection can be improved.

It is to be understood that the scope of the present invention is not limited to the above embodiments and that various changes and modifications may be made without departing from the spirit and scope of the present invention, I will see.

100: Functional LED lighting device
110: light source part 120:
130: light diffusing part 140:
150: reflective sheet 160: reflector
200: Functional LED lighting device
240: body portion 245:
270:

Claims (14)

A light source unit emitting white light;
And an optical amplifying unit that is provided with white light emitted from the light source unit and selectively amplifies light intensity in a predetermined wavelength range. The method according to claim 1,
And a light diffusing unit disposed behind the optical amplifying unit and diffusing the light passing through the optical amplifying unit. 3. The method of claim 2,
Wherein the light diffusing portion is attached to a rear surface of the optical amplifying portion. The method according to claim 1,
Wherein the light source unit is provided as a white LED. The method according to claim 1,
The light source includes a blue LED; And a wavelength filter unit provided between the blue light emitting diode and the optical amplifying unit and forming white light from the blue light emitting diode. The method according to claim 1,
Wherein the optical amplifying part comprises 0.1 wt% to 20 wt% of A ₂ SiO ₄ : Eu ^{2 +} based on the total weight, and A is at least one of Sr, Ba, Ca and Mg. The method according to claim 1,
The optical amplifier unit of a 0.1wt% to 20wt%, based on the total weight of A ₃ SiO _5: Eu ^{2 +,} or Ca-α-SiBION: wherein A or B, contains Eu ^{2 +} is Sr, Ba, Ca and Mg Wherein the light emitting diode is a light emitting diode. The method according to claim 1,
Wherein the optical amplification part comprises 0.1 wt% to 20 wt% CaS :: Eu ^{2 +} or CaAISiN ₃ : Eu ^{2 +} based on the total weight, and A or B is at least one of Sr, Ba, Ca and Mg Functional LED illumination device. 9. The method according to any one of claims 1 to 8,
And a body portion formed with a groove recessed inwardly on one surface thereof,
The light source unit is accommodated in the groove,
And the optical amplifying unit closes the groove with the outside. 10. The method of claim 9,
And a reflective sheet mounted on a wall surface of the groove and configured to reflect the light emitted from the light source unit and reflected from the optical amplifier unit toward the optical amplifier unit. 10. The method of claim 9,
And a reflector provided behind the optical amplifying part and reflecting the light deviated from the predetermined optical path from the light passing through the optical amplifying part to the predetermined optical path side. 9. The method according to any one of claims 1 to 8,
A body portion having a groove formed therein at one side thereof;
A rotation unit provided so as to be rotatable while facing the light source unit, the plurality of optical amplification units being mounted apart from each other along virtual circles;
And a controller for controlling a rotation degree of the rotation unit according to a user's request,
Wherein the light source unit is housed in the groove. 13. The method of claim 12,
And a reflective sheet mounted on a wall surface of the groove and configured to reflect the light emitted from the light source unit and reflected from the optical amplifier unit toward the optical amplifier unit. 13. The method of claim 12,
And a reflector provided behind the optical amplifying part and reflecting the light deviated from the predetermined optical path from the light passing through the optical amplifying part to the predetermined optical path side.

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