KR102143177B1 - A light device for sight protection - Google Patents

Abstract

A lighting device for protecting sight of the present invention relates to the invention which improves color rendering of white light irradiated from a lighting device, reduces damage to the human body by reducing blue light included in the white light, and automatically adjusts the amount and color rendering of blue light included in the white light currently being irradiated to be within a range in which protection for sight is possible.

Description

A light device for sight protection

The present invention relates to an illumination device for vision protection, and more particularly, improves the color rendering of white light irradiated from the illumination device, reduces the blue light included in the white light to reduce adverse effects on the human body, and the amount and color rendering properties of blue light contained in the currently irradiated white light It relates to a technology that automatically adjusts to fall within the scope of this vision protection.

In the modern society, as technology develops day by day, our lives are becoming more convenient and more prosperous, and many life skills focusing on improving the quality of life compared to the past have been developed and developed.

In general, residential or office spaces such as homes, offices, and officetels are equipped with lighting to illuminate indoor spaces, and these lightings not only irradiate lighting light in accordance with the trend of diversification and luxury of residential culture, but also the decorativeness of the installed interior. It is also being used as an interior material to increase the quality.

In particular, recently, LED (Light Emitting Diode) is widely used as a light source for lighting, and LED lighting devices that use LED as a light source not only last longer than fluorescent lamps and incandescent bulbs, but also consume less power and have a risk of fire due to low heat. Due to its few advantages, it is replacing lighting devices with fluorescent lamps and incandescent bulbs applied.

On the other hand, the white light emitted from the LED lighting device contains a considerable number of blue light components. The high blue light component causes the color rendering of LED lighting devices to be lowered compared to fluorescent and incandescent bulbs.In particular, the blue light wavelength causes fatigue in the human eye and causes diseases such as macular degeneration. As a result, your vision is adversely affected.

In artificial lighting, color rendering refers to the degree to which a person feels the most comfortable like natural light. When the natural sunlight is 100, the color rendering index of 90-100 is 1A grade, 80-89 is 1B grade, and 70-79 is It is divided into 2A grade, 60~69 grade 2B, and 40~59 grade 3, and the closer to 100, the better the color rendering property.

In the case of natural sunlight, red is the highest, followed by green and blue, whereas when looking at the spectral distribution of a white LED lighting device, which is artificial lighting, blue is the highest and appears in the order of green and red. The blue color, which adversely affects vision, is the highest.

In addition, the color rendering index of white LED lighting equipment, which is artificial lighting, is about 83, which is equivalent to the 1B grade, but it is insufficient compared to the 95 of fluorescent lamps and the 99 color rendering index of incandescent lamps.

Therefore, in order to reduce the high distribution of blue light, which is a disadvantage of the white LED lighting device, conventionally, red LEDs and green LEDs are additionally installed around white LEDs to reduce the distribution of blue light.

However, with the conventional technology (a technology of simply additionally installing a red LED and a green LED adjacent to the white LED), there have been limitations in sufficiently lowering the blue light component included in the white light and improving color rendering.

Accordingly, the present invention proposes a technology that effectively reduces blue light by improving the disadvantages of the prior art and protects eyesight by increasing color rendering.

The following are prior art related to this.

1. Korean Patent Laid-Open Publication No. 10-2010-0043168 Lighting equipment using white light LED 2. Republic of Korea Patent Publication No. 10-1495330 RGB (red-green-blue) nitride-based red light-emitting phosphors in lighting systems 3. Republic of Korea Patent Publication No. 10-2018-0013511 Light-emitting device package and lighting device

The present invention is to solve the above problems,

An object of the present invention is to improve the color rendering property of white light irradiated from an illumination device, and to reduce blue light to reduce the adverse effect of blue light on the human body (deterioration of vision).

In addition, the object of the present invention is to automatically adjust the amount and color rendering properties of blue light contained in the white light currently being irradiated to be within the range of vision protection.

In order to achieve the above object, the illumination device for vision protection of the present invention,

A body portion 100 having a quadrangular shape that provides a space in which each component is installed;

A white light LED module 200 installed around the inner side of the body 100 to emit white light;

Light for reduction to improve the color rendering of white light emitted from the white light LED module 200 by being installed around the inner side of the body part 100 where the white light LED module 200 is not installed, and to reduce blue light included in the white light A blue light reduction LED module 300 for emitting light;

The white light emitted from the white light LED module 200 and the reduction light emitted from the blue light reduction LED module 300 are mixed with each other to receive light, which is installed in the center of the body part 100 to improve color rendering and reduce blue light. A light mixing unit 400 made of a light guide material having a predetermined thickness so that mixed light is formed;

A reflective sheet 500 formed on an upper surface of the optical mixing unit 400 to reflect the mixed light, which is white light formed by the optical mixing unit 400, downward;

A diffusion plate 600 formed on a lower side of the optical mixing unit 400 to diffuse the mixed light, which is white saenggwang formed by the optical mixing unit 400, in a downward direction;

It characterized in that it comprises a control unit 700 for controlling the supply of power to the white light LED module 200 and the blue light reduction LED module 300 for controlling the lighting of the white light LED module 200 and the blue light reduction LED module 300 do.

The present invention improves the color rendering property of white light irradiated from an illumination device and reduces the adverse effect of blue light on the human body by reducing blue light, thereby providing an effect of protecting eyesight.

In addition, the present invention provides an effect that white light illumination is always controlled within a range where vision protection is possible because the amount and color rendering properties of blue light contained in the white light currently being irradiated are automatically adjusted to be within the range where vision protection is possible.

1 is a perspective view of the present invention
Figure 2 is a block diagram of the configuration of the present invention
Figure 3 is an exploded view of the present invention
Figure 4 is a white light LED module of the present invention
5 is an exemplary view of a single layer structure of a blue light reduction LED module of the present invention,
Figure 6 is an exemplary diagram of a blue light reduction LED module multilayer structure of the present invention 1
7 is an exemplary diagram of a multilayer structure of a blue light reduction LED module of the present invention 2
Figure 8 is a cross-sectional view of the lighting device of the present invention 1
9 is a spectral distribution of solar and white light LEDs
10 is a test report 1
11 is a test report 2
12 is a test report 3
13 is an exemplary view of a basic lighting group and an auxiliary lighting group of the blue light reduction LED module of the present invention
14 is a cross-sectional view 2 of the lighting device of the present invention

An embodiment of the present invention will be described in detail with reference to FIGS. 1 to 14.

Referring to Figure 1, the vision protection lighting device of the present invention (hereinafter referred to as'lighting device') improves the color rendering of white light irradiated from the lighting device 10 and reduces blue light included in the white light, so that blue light has an adverse effect on the human body. ) To decrease.

That is, the lighting device 10 of the present invention is an invention that prevents the deterioration of color rendering, which is a disadvantage of the LED lighting device, and in particular reduces blue light, thereby reducing eye fatigue caused by blue light, thereby enabling vision protection.

Lighting device 10 of the present invention, as shown in Figure 2, the body portion 100, white light LED module 200, blue light reduction LED module 300, light mixing unit 400, reflective sheet 500, diffusion It is configured to basically include the plate 600 and the control unit 700, and may further include a spectroscopic detection sensor 800.

Specifically, the illumination device for vision protection of the present invention,

A body portion 100 having a quadrangular shape that provides a space in which each component is installed;

A white light LED module 200 installed around the inner side of the body 100 to emit white light;

Light for reduction to improve the color rendering of white light emitted from the white light LED module 200 by being installed around the inner side of the body part 100 where the white light LED module 200 is not installed, and to reduce blue light included in the white light A blue light reduction LED module 300 for emitting light;

The white light emitted from the white light LED module 200 and the reduction light emitted from the blue light reduction LED module 300 are mixed with each other to receive light, which is installed in the center of the body part 100 to improve color rendering and reduce blue light. A light mixing unit 400 made of a light guide material having a predetermined thickness so that mixed light is formed;

A reflective sheet 500 formed on an upper surface of the optical mixing unit 400 to reflect the mixed light, which is white light formed by the optical mixing unit 400, downward;

A diffusion plate 600 formed on a lower side of the optical mixing unit 400 to diffuse the mixed light, which is white saenggwang formed by the optical mixing unit 400, in a downward direction;

It characterized in that it comprises a control unit 700 for controlling the supply of power to the white light LED module 200 and the blue light reduction LED module 300 for controlling the lighting of the white light LED module 200 and the blue light reduction LED module 300 do.

Referring to FIG. 3, the body portion 100 is formed in a quadrangular shape to have a predetermined size and space, and provides a space in which each of the components of the lighting device 10 of the present invention is installed.

At this time, the white light LED module 200, the blue light reduction LED module 300, the light mixing unit 400, the reflective sheet 500 is installed in the inner space 101 formed inside the body part 100, and the body A control unit 700 is installed inside or outside the unit 100.

Specifically, the white light LED module 200 is installed in two places opposite to each other around the inner side circumference of the body part 100, and the inner side circumference of the body part 100 where the white light LED module 200 is not installed The blue light reduction LED module 300 is installed at two places opposite to each other.

3 and 4, the white light LED module 200 includes a plurality of single-layered or multi-layered structures installed at two places opposite to each other around the side circumference of the inner space 101 formed inside the quadrangular body part 100. It includes a white LED 210 of, and emits white light in a horizontal direction so that white light is received by the side of the light mixing unit 400 to be described later.

Here, the white light LED module 200 is preferably formed of a plurality of white LEDs 210 in a single-layer structure as shown in the upper figure of FIG. 4, but a multi-layer structure as shown in the lower figure of FIG. 4 is also included in the scope of the present invention. It is self-evident, and the white light emitted by the white light LED module 200 is received by the side of the light mixing unit 400 to be described later, and is mixed with the reduction light emitted from the blue light reduction LED module 300 to be described later to improve color rendering. The blue light component included in the white light is reduced to correspond to the basic illumination light that is irradiated downward.

In addition, when the white light LED module 200 is formed in a multilayer structure, the number of layers of the white light LED module 200 is preferably formed equal to the number of layers of the blue light reduction LED module 300 which is a multilayer structure to be described later.

The blue light reduction LED module 300 is installed in two places opposite to each other around the inner side circumference of the square-shaped body portion 100 where the white light LED module 200 is not installed as shown in FIG. 3 to reduce light in the horizontal direction. As a configuration to emit light to receive light to the side of the light mixing unit 400, the reduction light emitted from the blue light reduction LED module 300 is white light emitted from the light mixing unit 400 to be described later. It is mixed with the white light LED module 200 to improve the color rendering property of the white light, and to perform a function of reducing the blue light component included in the white light.

The blue light reduction LED module 300 is characterized in that it is configured to include a plurality of white LEDs 310, a plurality of red LEDs 320, and a plurality of green LEDs 330.

That is, the plurality of white LED groups 310 constituting the blue light reduction LED module 300 emit white light, the plurality of red LEDs 320 emit red light, and the plurality of green LEDs 330 emit green light, respectively. It will glow.

The blue light reduction LED module 300 is preferably formed in a single-layer structure as shown in FIG. 5, but it is obvious that a multi-layer structure as shown in FIG. 6 may also be included in the scope of the present invention.

In addition, when the blue light reduction LED module 300 is formed in a multilayer structure, the number of layers of the blue light reduction LED module 300 having a multilayer structure is preferably formed equal to the number of layers of the white light LED module 200 having a multilayer structure described above. Do.

Specifically, each layer of the blue light reduction LED module 300 having a single layer or multilayer structure,

A plurality of unit white LED groups 310 emitting white light, and

One red LED 320 formed between the unit white LED group 310 to emit red light,

It is formed between the unit white LED group 310 and consists of one green LED 330 emitting green light,

The red LED 320 and the green LED 330 are arranged adjacent to each other, and the unit white LED group 310 is characterized in that it is composed of three or four white LEDs 311.

In the drawings of the present invention, it is illustrated that the unit white LED group 310 is composed of three white LEDs 311.

That is, each layer of the blue light reduction LED module 300 having a single-layer or multi-layer structure, as shown in FIGS. 5 and 6, comprises one unit white LED group 310 and one unit consisting of three or four white LEDs 311 The red LED 320 and one green LED 330 are sequentially repeatedly arranged to configure the blue light reduction LED module 300.

Meanwhile, as shown in Figure B of FIG. 6, the red LED 320 disposed on each layer of the blue light reduction LED module 300 having a multilayer structure is not adjacent to the red LED 320 in the adjacent layer, but is disposed on each layer. The green LED 330 is characterized in that the arrangement position is shifted so as not to be adjacent to the green LED 330 in the adjacent layer.

In particular, the reduction light emitted from the arrangement structure shown in Figure B of Fig. 6 is more than the reduction light emitted from the arrangement structure shown in Fig. 6A, and improved color rendering of white light emitted from the white light LED module 200 The blue light reduction effect becomes larger.

As another embodiment, when the blue light reduction LED module 300 is formed in a multilayer structure, a multilayer structure is formed only with a first layer composed of white LEDs and red LEDs and a second layer composed of white LEDs and green LEDs. Or, the first and second layers may be repeatedly stacked to form a multilayer structure.

Specifically, as shown in Figure 7,

The first layer of the blue light reduction LED module 300 having a multilayer structure,

A plurality of unit white LED groups 310 emitting white light, and

It is formed between the unit white LED group 310 and consists of two red LEDs 320 emitting red light,

The second layer of the blue light reduction LED module 300 having a multilayer structure,

A plurality of unit white LED groups 310 emitting white light, and

It is formed between the unit white LED group 310 and consists of two green LEDs 330 emitting green light,

The unit white LED group 310 is composed of three or four white LEDs 311, and the blue light reduction LED module 300 having a multilayer structure is composed of only first and second layers, or adjacent first and second layers are It is characterized in that it is repeatedly laminated to form a multi-layered structure.

That is, the blue light reduction LED module 300 having a multi-layer structure, as illustrated in A of FIG. 7, comprises one unit white LED group 310 consisting of three or four white LEDs 311 and two red LEDs ( The first layer in which 320) is repeatedly arranged in sequence, and one unit white LED group 310 consisting of three or four white LEDs 311 and two green LEDs 330 are sequentially repeatedly arranged The blue light reduction LED module 300 having a multi-layered structure may be configured as the second layer, or the first and second layers may be repeatedly stacked to form a multi-layered structure.

Meanwhile, as shown in Figure B of FIG. 7, the red LED 320 disposed on the first layer of the blue light reduction LED module 300 having a multi-layer structure is arranged so as not to be adjacent to the green LED 330 on the adjacent second layer. It is also possible to configure the blue light reduction LED module 300 having a multi-layered structure by dislocating the position.

The reduction light emitted in the arrangement structure as shown in Figure B of FIG. 7 is better than the reduction light emitted in the arrangement structure as shown in Figure 7 A, improves color rendering and reduces blue light for white light emitted from the white light LED module 200 The effect is greater.

3 and 8, the light mixing unit 400 is formed of a light guide material having a certain thickness, and is installed in the center of the body part 100 to reduce white light and blue light emitted from the white light LED module 200. It is a configuration in which mixed light, which is white light with improved color rendering and reduced blue light, is formed by mixing the reduction light emitted from the module 300 with light.

3 and 8, the reflective sheet 500 is formed on the upper surface of the optical mixing unit 400, and the mixed light directed to the upper side of the optical mixing unit 400 among mixed light, which is white light formed by the optical mixing unit 400. It is a configuration to reflect downwards.

In addition, referring to FIGS. 3 and 8, the diffusion plate 600 is formed on the lower side of the light mixing unit 400 to diffuse the mixed light, which is the white light formed by the light mixing unit 400, in a downward direction.

Referring to FIG. 8, the control unit 700 is installed inside or outside the body part 100 (FIG. 8 shows an example installed inside the body part 100) and the white light LED module 200 It is a configuration for controlling the supply of power to the white light LED module 200 and the blue light reduction LED module 300 in order to control the lighting of the and blue light reduction LED module 300.

Therefore, the reduction light emitted from the blue light reduction LED module 300 having the above-described structure is mixed with the white light emitted from the white light LED module 200 in the light mixing unit 400 and the light received from the white light LED module 200. Since the color rendering of white light is improved and the blue light component included in the white light is reduced, and is illuminated downward through the diffusion plate 600, eye fatigue due to blue light is reduced and vision protection is possible.

Fig. 9A is a spectral distribution diagram of sunlight, which is natural light, and Fig. 9B is a spectral distribution diagram of white light emitted by a conventional white LED.

Illumination light, which is artificial light, has a color rendering property close to that of natural light when it has a spectral distribution similar to sunlight. Fig. 9B, which is a spectral distribution diagram of white light emitted by a conventional white LED, which is an artificial light, is compared with Fig. 9A, which is a spectral distribution diagram of sunlight, which is natural light, R (red), G (green), B (blue) ) Since there is a significant difference in the distribution shape of the light, the white light emitted by the white LED is not very good in color rendering.In particular, the blue light (B) is considerably compared to the red light (R) or green light (G) for the white light emitted by the white LED. It contains a lot, because white LEDs are manufactured based on blue LEDs.

However, research reports have recently been raised that blue light, which accounts for a large amount of white light emitted by white LEDs, adversely affects vision.

Accordingly, the present invention is to implement a lighting device capable of improving the color rendering property of finally illuminated white light and protecting eyesight by reducing blue light by configuring the blue light reduction LED module 300 having the above-described characteristics.

The applicant of the present invention conducted a test to confirm the effect of improving color rendering and reducing blue light of the lighting apparatus according to the present invention to which the blue light reduction LED module is applied, and the test results will be described in detail below. The test was conducted through the Korea Lighting ICT Research Institute, an accredited institution.

Test Example 1: Lighting device consisting only of conventional white LEDs

Test Example 2: Lighting device consisting of a conventional white LED + blue light reduction module 1

Test Example 3: Lighting device consisting of a conventional white LED + blue light reduction module 2 (blue light reduction module 300 of the present invention)

10 is a test result for Test Example 1, FIG. 11 is a test result for Test Example 2, and FIG. 12 is a test result for Test Example 3.

The test result shown in FIG. 10 is a test result for a lighting device to which only the conventional white LED 200, which is Test Example 1, was applied, and the color rendering property was 83.3 (based on natural light 100), and the blue light was about 136.5 (Intensity/mW). Able to know.

The test results shown in FIG. 11 are test results for a lighting device to which a blue light reduction module 1 composed of only R and G LEDs is applied to a conventional general white LED 200 which is Test Example 2.

In the case of Test Example 2, it can be seen that the color rendering property is 83.8 (based on 100 natural light), and the blue light is about 108.48 (Intensity/mW), so that the blue light is somewhat reduced compared to Test Example 1, but there is no significant difference in the color rendering property.

The test result shown in FIG. 12 is a test result of a lighting device to which the blue light reduction module 300 of the present invention is applied to a conventional general white LED 200 of Test Example 3.

In the case of Test Example 3, it can be seen that the color rendering property is 89.9 (based on 100 natural light), and the blue light is about 82.6 (Intensity/mW), so that blue light is significantly reduced and the color rendering property is significantly improved compared to Test Example 1 and 2.

Summarizing the above test results, the lighting apparatus of the present invention to which the white LED 200 and the blue light reduction LED module 300 having the above-described characteristics are applied is considerably improved in the color rendering of white light, so that it is closer to sunlight, which is natural light. It can be seen that this invention is capable of providing a remarkable vision protection effect by significantly reducing blue light, which adversely affects eyesight.

On the other hand, the need to automatically adjust the color rendering of white light (meaning the mixed light generated by the light mixing unit) and the amount of blue light included in the white light to be within the range necessary for vision protection through the illumination device 10 of the present invention. There is, and to this end, the lighting device 10 of the present invention is configured to further include a spectroscopic detection sensor (800).

The spectral detection sensor 800 is formed on one side of the body portion 100 adjacent to the diffuser plate 600 as shown in FIG. 8 and diffuses downward through the diffuser plate 600, the red light component and the green light component included in the white light. The blue light component is detected and provided to the control unit 700, and the control unit 700 controls the lighting of the blue light reduction LED module 300 using the detected amount of each light component provided.

In this case, the LEDs constituting the blue light reduction LED module 300 are a basic lighting group that is basically turned on when power is supplied and a plurality of auxiliary lighting groups that are additionally turned on under the control of the controller 700, as shown in FIG. 13. It is distinguished.

13A shows examples of the basic lighting group and the auxiliary lighting group of the single-layered blue light reduction LED module 300, and FIG. 13B and C illustrate the basic lighting of the blue light reduction LED module 300 having a multilayer structure. Examples of groups and auxiliary lighting groups are shown.

At this time, the control unit 700 determines the auxiliary lighting group to be additionally lit according to the detection result of the spectral detection sensor 800, and powers the LEDs constituting the auxiliary lighting group so that the determined auxiliary lighting group is additionally lit. Is to supply.

That is, the control unit 700 according to the detection result of the spectroscopic detection sensor 800, when the blue light component included in the white light irradiated downward through the diffusion plate 600 is more than a set ratio of the red light component and the green light component, It is decided to additionally light the auxiliary lighting group, but the number of auxiliary lighting groups to be lit is determined according to the excess ratio of the blue light component to the red light component and the green light component.

In the case of the blue light reduction LED module 300 having a single-layer structure, for example, in the figure A of FIG. 13, the control unit 700 is configured according to the excess ratio of the blue light component to the red light component and the green light component. The supply of power is controlled so that only the first auxiliary lighting group of the blue light reduction LED module 300 is additionally lit, or the first and second auxiliary lighting groups are additionally lit.

In addition, in the case of the blue light reduction LED module 300 having a multilayer structure, for example, the drawings B and C of FIG. 13 are shown, and the control unit 700 includes the blue light component for the red light component and the green light component. The supply of power is controlled so that only the first auxiliary lighting group of the blue light reduction LED module 300 is additionally lit or the first and second auxiliary lighting groups are additionally lit according to the excess ratio.

Therefore, according to the detection result of the spectral detection sensor 800 regarding the excess ratio of the blue light component to the red light component and the green light component of the currently illuminated white light flux, the blue light reduction LED module ( In addition to the basic lighting group of 300), auxiliary lighting groups are additionally lit, so that the amount of blue light and color rendering in the white light currently being illuminated can be automatically adjusted to be within the range of vision protection.

Meanwhile, in another embodiment, the lighting apparatus of the present invention may further include a mood lighting unit 900 and a second mood lighting unit 1000.

To this end, in the body part 100,

A lighting installation groove 110 formed around the rear circumference to a certain depth to provide a space in which the mood lighting unit 900 is installed,

A stepped portion 120 protruding to a predetermined height around the lighting installation groove 110 so that the mood lighting unit 900 installed in the lighting installation groove 110 and the ceiling are spaced apart by a predetermined distance,

A second lighting installation groove 130 is formed on the side of the stepped portion 120 to a predetermined depth to provide a space in which the second mood lighting unit 1000 is installed.

Referring to FIG. 14, the mood lighting part 900 is formed on the rear surface (ceiling side) of the body part 100 to irradiate the mood lighting light toward the ceiling, which is the rear of the body part 100, specifically Is formed in the lighting installation groove 110 formed at a predetermined depth around the rear surface of the body portion 100. The mood lighting unit 900 includes a first circuit board 910 and a first diffusion panel 920.

Referring to the enlarged top view of FIG. 14, the first circuit board 910 is a configuration in which a first light source 911 that is lit according to power supply from the controller 700 to generate illumination light is formed.

The first circuit board 910 is formed in a state seated in the lighting installation groove 110 formed along the rear circumference of the body portion 100.

The first light source 911 formed on the first circuit board 910 is an LED lamp that is lit by power supplied under the control of the control unit 700, and emits color light of various colors for mood lighting, not white light. It is characterized in that it is an LED lamp.

In addition, the first diffusion panel 920 is configured to diffuse the mood lighting light generated from the first light source 911 to the ceiling surface, and is formed to cover the opening of the lighting installation groove 110.

A second lighting installation groove 130 is formed on the side of the stepped portion 120 to a predetermined depth to provide a space in which the second mood lighting unit 1000 is installed, and is installed in the second lighting installation groove 130 The second mood lighting unit 1000 is characterized in that it includes a second circuit board 1100 and a second diffusion panel 1200.

Referring to the enlarged top view of FIG. 14, the second circuit board 1100 is a configuration in which a second light source 1110 for generating illumination light is formed by being turned on under the control of the controller 700.

The second circuit board 1100 is formed in a state seated in the second lighting installation groove 130 formed at a predetermined depth on the side of the stepped portion 120.

The second light source 1110 formed on the second circuit board 1100 is also characterized in that it is a plurality of LED lamps that are lit under the control of the controller 700, like the first light source 911.

In addition, the second diffusion panel 1200 is a configuration for diffusing the mood lighting light generated from the second light source 1110 to the side of the ceiling, and is formed to cover the opening of the second lighting installation groove 130 .

On the other hand, in the lighting apparatus 10 of the present invention, the second mood lighting unit 1000 may irradiate light with the same color as the mood lighting unit 900 or light of different colors.

To this end, the second light source 1110 of the second mood lighting unit 1000 is composed of an LED lamp that generates light of the same color as the first light source 911 of the mood lighting unit 900 or generates light of different colors. It can be composed of LED lamps that let you know.

The controller 700 controls the power supply to the mood lighting unit 900 and the second mood lighting unit 1000 separately from the white light LED module 200 and the blue light reduction LED module 300.

For example, if power is supplied only to the white light LED module 200 and the blue light reduction LED module 300 according to an external control signal (operation by the user), the main light is irradiated only to the lower side of the lighting device, thereby creating a general life lighting effect. When directing and supplying power only to the mood lighting unit 900, it is possible to produce a mood light effect in which lighting in the form of a lighting device is irradiated on the ceiling of the rear of the lighting device, and power is supplied only to the second mood lighting unit 1000. Then, it is possible to create a mood light effect in which lighting is irradiated on the entire ceiling surface.

In the above, the technical idea of the present invention has been described together with the accompanying drawings, but this is illustrative of a preferred embodiment of the present invention and does not limit the present invention. In addition, it is a clear fact that anyone of ordinary skill in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

10: lighting device
100: body
200: white light LED module
300: Blue light reduction LED module
400: optical mixing unit
500: reflective sheet
600: diffuser plate
700: control unit
800: Spectroscopic detection sensor
900: mood lighting unit
1000: second mood lighting unit

Claims (9)

In the vision protection lighting device using the effect of improving color rendering and reducing blue light,
A body portion 100 having a quadrangular shape that provides a space in which each component is installed;
A white light LED module 200 installed around the inner side of the body 100 to emit white light;
Light for reduction to improve the color rendering of white light emitted from the white light LED module 200 by being installed around the inner side of the body part 100 where the white light LED module 200 is not installed, and to reduce blue light included in the white light A blue light reduction LED module 300 for emitting light;
A white light with improved color rendering and reduced blue light by mixing white light emitted from the white light LED module 200 and the reduction light emitted from the blue light reduction LED module 300 to receive light. A light mixing unit 400 made of a light guide material having a predetermined thickness so that mixed light is formed;
A reflective sheet 500 formed on an upper surface of the optical mixing unit 400 to reflect the mixed light, which is white light formed by the optical mixing unit 400, downward;
A diffusion plate 600 formed on a lower side of the optical mixing unit 400 to diffuse the mixed light, which is white saenggwang formed by the optical mixing unit 400, in a downward direction;
Including a control unit 700 for controlling the supply of power to the white light LED module 200 and the blue light reduction LED module 300 for controlling the lighting of the white light LED module 200 and the blue light reduction LED module 300,

A spectroscopic detection sensor that is formed on one side of the body part 100 adjacent to the diffusion plate 600 and detects a red light component, a green light component, and a blue light component included in the mixed light, which is white light that is diffused downward through the diffusion plate 600 Including more (800),
The LEDs constituting the blue light reduction LED module 300 are divided into a basic lighting group that is basically lit when power is supplied and an auxiliary lighting group that is additionally lit according to the control of the controller 700,
The control unit 700 determines an auxiliary lighting group to be additionally lit according to the detection result of the spectral detection sensor 800, and supplies power to the LEDs constituting the auxiliary lighting group so that the determined auxiliary lighting group is additionally lit. Vision protection lighting device, characterized in that.
The method according to claim 1,
The white light LED module 200,
It is installed at two places opposite to each other around the inner side of the quadrangular body part 100 to emit white light in a horizontal direction so that white light is received toward the side of the light mixing unit 400,
The blue light reduction LED module 300,
The white light LED module 200 is installed at two places opposite to each other around the inner side circumference of the square-shaped body part 100 where the white light LED module 200 is not installed to emit light for reduction in the horizontal direction to receive light to the side of the light mixing part 400 and,
The white light LED module 200 includes only a plurality of white LEDs 210,
The blue light reduction LED module 300 is a lighting device for vision protection, characterized in that configured to include a plurality of white LEDs 310, a plurality of red LEDs 320, a plurality of green LEDs 330.
The method according to claim 2,
The white light LED module 200 and the blue light reduction LED module 300 are formed in a single layer structure,
The blue light reduction LED module 300 having a single layer structure,
A plurality of unit white LED groups 310 emitting white light, and
One red LED 320 formed between the unit white LED group 310 to emit red light,
It is formed between the unit white LED group 310 and consists of one green LED 330 emitting green light,
The red LED 320 and the green LED 330 are disposed to be adjacent,
The unit white LED group 310 is a lighting device for vision protection, characterized in that consisting of three or four white LEDs (311).
The method according to claim 2,
The white light LED module 200 and the blue light reduction LED module 300 are formed in a multilayer structure,
Each layer of the blue light reduction LED module 300 having a multilayer structure,
A plurality of unit white LED groups 310 emitting white light, and
One red LED 320 formed between the unit white LED group 310 to emit red light,
It is formed between the unit white LED group 310 and consists of one green LED 330 emitting green light,
The red LED 320 and the green LED 330 are disposed to be adjacent,
The unit white LED group 310 is a lighting device for vision protection, characterized in that consisting of three or four white LEDs (311).
The method according to claim 4,
The red LED 320 disposed on each layer is not adjacent to the red LED 320 on the adjacent layer, and the green LED 330 disposed on each layer is arranged so that it is not adjacent to the green LED 330 on the adjacent layer. A lighting device for vision protection, characterized in that it is arranged out of position.
The method according to claim 2,
The white light LED module 200 and the blue light reduction LED module 300 are formed in a multilayer structure,
The first layer of the blue light reduction LED module 300 having a multilayer structure,
A plurality of unit white LED groups 310 emitting white light, and
It is formed between the unit white LED group 310 and consists of two red LEDs 320 emitting red light,
The second layer of the blue light reduction LED module 300 having a multilayer structure,
A plurality of unit white LED groups 310 emitting white light, and
It is formed between the unit white LED group 310 and consists of two green LEDs 330 emitting green light,
The unit white LED group 310 is composed of three or four white LEDs 311,
The multi-layered blue light reduction LED module 300 is a lighting device for vision protection, characterized in that formed by forming a multi-layered structure consisting of only the first and second layers or the first and second layers are repeatedly stacked.
The method according to claim 6,
The red LED 320 disposed on the first layer is a lighting device for vision protection, characterized in that the arrangement position is shifted so as not to be adjacent to the green LED 330 on the adjacent second layer.
delete The method according to claim 1,
The control unit 700,
When the blue light component included in the mixed light, which is white light diffused downward through the diffusion plate 600 through the detection result of the spectroscopic detection sensor 800, is greater than or equal to the set ratio of the red light component and the green light component, an auxiliary lighting group is added. It is decided to turn it on,
A lighting device for vision protection, characterized in that the number of auxiliary lighting groups to be lit is determined according to an excess ratio of the blue light component to the red light component and the green light component.

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