KR101272688B1 - Lighting module - Google Patents

Abstract

Embodiments relate to a lighting module.
The lighting module according to the embodiment, the first plate for emitting light; A second plate spaced apart from the first plate and emitting light; A first light source unit disposed on one side of the first plate and the second plate and emitting light between the first plate and the second plate; A second light source unit disposed on the other side of the first plate and the second plate and emitting light between the first plate and the second plate; A first case having a first accommodating portion in which the first light source is disposed; A second case having a second accommodating part in which the second light source part is disposed; A first reflecting member disposed in the first accommodating portion and reflecting light from the first light source portion in a predetermined direction; And a second reflecting member disposed in the second accommodating part and reflecting light from the second light source part in a predetermined direction.

Description

Lighting module {LIGHTING MODULE}

Embodiments relate to a lighting module.

In general, a lot of bulbs or fluorescent lights are used as indoor or outdoor lighting, such a bulb or fluorescent lamp has a short life and has to be replaced frequently. In addition, the conventional fluorescent lamp has a problem that excessively decreases the illuminance due to deterioration over the use time.

In order to solve this problem, a light emitting diode (LED), which has excellent controllability, fast response speed, high electro-optical conversion efficiency, long life, low power consumption, high brightness, and emotional lighting, is used. Various types of lighting modules have been developed.

Korean Patent Publication No. 2009-0100004 (Published: 2009.09.23)

Embodiments provide an illumination module that simultaneously emits light up and down.

In addition, the embodiment provides an illumination module that can adjust the amount of light emitted upward and the amount of light emitted downward.

In addition, it provides an illumination module that can control the light path therein.

The lighting module according to the embodiment, the first plate for emitting light; A second plate spaced apart from the first plate and emitting light; A first light source unit disposed on one side of the first plate and the second plate and emitting light between the first plate and the second plate; A second light source unit disposed on the other side of the first plate and the second plate and emitting light between the first plate and the second plate; A first case having a first accommodating portion in which the first light source is disposed; A second case having a second accommodating part in which the second light source part is disposed; A first reflecting member disposed in the first accommodating portion and reflecting light from the first light source portion in a predetermined direction; And a second reflecting member disposed in the second accommodating part and reflecting light from the second light source part in a predetermined direction.

An illumination module according to an embodiment includes a light source unit having a substrate and a light emitting element disposed on the substrate; A case having a base on which the substrate is disposed, and an upper case and a lower case connected to the base and corresponding to each other; A first plate connected to the upper case and configured to emit a part of the light emitted from the light source; And a second plate connected to the lower case, spaced apart from the first plate by a predetermined distance, a portion of the light emitted from the light source unit is emitted, and the amount of light emitted is different from the amount of light emitted from the first plate. The light source unit includes a first reflecting member disposed on an inner surface of the upper case and a second reflecting member disposed on an inner surface of the lower case.

Using the lighting module according to the embodiment, it is possible to emit light up and down at the same time.

In addition, there is an advantage that can adjust the amount of light emitted up and the amount of light emitted down.

In addition, there is an advantage that can control the internal light path.

1 is a perspective view from above of a lighting module according to an embodiment;
FIG. 2 is a perspective view from below of the lighting module shown in FIG. 1; FIG.
3 is an exploded perspective view of the lighting module shown in FIG.
4 is a cross-sectional view taken along line AA ′ of FIG. 1.
FIG. 5 is an enlarged view of the first case shown in FIG. 4. FIG.
FIG. 6 is a cross-sectional view taken along the line AA ′ of FIG. 1;
FIG. 7 is a cross-sectional view taken along the line AA ′ of FIG. 1.
8 and 9 are graphs showing optical characteristics of the lighting module shown in FIG. 7.

The thickness and size of each layer in the drawings are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. In addition, the size of each component does not necessarily reflect the actual size.

In the description of embodiments according to the present invention, it is to be understood that where an element is described as being formed "on or under" another element, On or under includes both the two elements being directly in direct contact with each other or one or more other elements being indirectly formed between the two elements. Also, when expressed as "on or under", it may include not only an upward direction but also a downward direction with respect to one element.

Hereinafter, a lighting module according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view from above of a lighting module according to an embodiment, FIG. 2 is a perspective view from below of a lighting module shown in FIG. 1, FIG. 3 is an exploded perspective view of the lighting module shown in FIG. 1, and FIG. 4 is It is sectional drawing to AA 'of FIG.

1 to 4, the lighting module 100 includes the first and second plates 110a and 110b, the first and second light sources 130a and 130b, and the first and second cases 150a and 150b. ) And first and second end caps 170a and 170b.

For convenience of description, the first and second cases 150a and 150b will be described first.

1 to 4, the first case 150a accommodates the first light source unit 130a and the second case 150b accommodates the second light source unit 130b. In addition, the first case 150a accommodates one side portion of the first plate 110a and the second plate 110b, and the second case 150b includes the first plate 110a and the second plate 110b. House the other side. Therefore, the first and second light source units 130a and 130b and the first and second plates 110a and 110b are disposed between the first case 150a and the second case 150b.

The first and second cases 150a and 150b may be made of a material capable of easily dissipating heat from the first and second light sources 130a and 130b. For example, it may be aluminum, an aluminum alloy, or the like.

Hereinafter, the first case 150a will be described in detail with reference to FIG. 5. Here, since the first case 150a and the second case 150b are the same, the description of the second case 150b is replaced with the description of the first case 150a which will be described later.

FIG. 5 is an enlarged view of the first case 150a shown in FIG. 4.

1 to 5, the first case 150a may include a base 151a, an upper case 153a, and a lower case 155a. The upper case 153a and the lower case 155a may be coupled to the base 151a through screws or the like, and the base 151a, the upper case 153a and the lower case 155a may be integrally formed as a first case 150a. ) Can be configured.

The base 151a is long in one direction and may have a plate shape having a predetermined thickness.

The base 151a has an inner surface and an outer surface. The first light source unit 130a is disposed on an inner surface of the base 151a, and an outer surface of the base 151a is exposed to the outside.

The upper case 153a is connected to one side of the base 151a. The upper case 153a may be long in one direction and may have a plate shape having a predetermined thickness.

The upper case 153a may have an outer surface, an inner surface, and a groove 153a-1. The outer surface of the upper case 153a is exposed to the outside, and the groove 153a-1 receives one side of the first plate 110a. The inner surface of the upper case 153a faces the inner surface of the lower case 155a. An angle formed between the inner surface of the upper case 153a and the inner surface of the base 151a may be substantially close to the vertical. The first reflective member 137a-1 of the first light source 130a is disposed on the inner surface of the upper case 153a.

The lower case 155a is connected to the other side of the base 151a. The lower case 155a may be long in one direction and may have a plate shape having a predetermined thickness.

The lower case 155a may have an outer surface, an inner surface, and a groove 155a-1. The outer surface of the lower case 155a is exposed to the outside, and the groove 155a-1 receives one side of the second plate 110b. The inner surface of the lower case 155a faces the inner surface of the upper case 153a. An angle formed between the inner surface of the lower case 155a and the inner surface of the base 151a may be substantially perpendicular. The second reflective member 137a-2 of the first light source 130a is disposed on the inner surface of the lower case 155a.

The housing 157a is defined by the inner surface of the base 151a, the inner surface of the upper case 153a, and the inner surface of the lower case 155a. The accommodating part 157a accommodates or accommodates the first light source part 130a.

1 to 4, the first light source unit 130a is accommodated in or accommodated in the first case 150a. Here, the first light source 130a may be accommodated in the accommodating part 157a of the first case 150a illustrated in FIG. 5 and disposed on the inner surface of the base 151a. The second light source unit 130b is accommodated in or accommodated in the second case 150b.

The first light source unit 130a and the second light source unit 130b respectively accommodated in the first and second cases 150a and 150b are disposed to face each other.

Specifically, the first light source unit 130a will be described. Here, since the second light source unit 130b is the same as the first light source unit 130a, the description of the second light source unit 130b is replaced with the description of the first light source unit 130a described later.

The first light source 130a may include a substrate 131a and a light emitting element 133a.

A plurality of light emitting elements 133a are arranged in a line on one surface of the substrate 131a. The other surface of the substrate 131a is disposed on the inner surface of the base 151a of the first case 150a shown in FIG. 5. The substrate 131a may be long in one direction and may have a plate shape having a predetermined thickness.

The substrate 131a may include a printed circuit board (PCB), a metal core printed circuit board (MCPCB), a flexible printed circuit board (FPCB), or a ceramic substrate.

The light emitting element 133a may be a light emitting diode (LED).

The plurality of light emitting devices 133a may be light emitting devices emitting light having the same color, or may be light emitting devices emitting light having different colors.

The light emitting device 133a may be a blue light emitting device, or may be a white light emitting device having a high color rendering index (CRI). The white light emitting device may be a light emitting device that emits white light by molding a synthetic resin including a phosphor on the blue light emitting chip. Here, the phosphor may include at least one of garnet-based (YAG, TAG), silicate (Silicate), nitride (Nitride) and oxynitride (oxyxyride). Natural light (white light) may be realized by including only a yellow phosphor in a synthetic resin, but may further include a green phosphor or a red phosphor in order to improve color rendering index and reduce color temperature. In addition, when various kinds of phosphors are mixed in the synthetic resin, the addition ratio according to the color of the phosphor may use more green phosphors than red phosphors and more yellow phosphors than green phosphors. YAG, silicate, and oxynitride systems of the garnet system may be used as the yellow phosphor, silicate system and oxynitride system may be used as the green system phosphor, and nitrides may be used as the red system phosphor. have. In addition to mixing various kinds of phosphors in a synthetic resin, a layer having a red phosphor, a layer having a green phosphor, and a layer having a yellow phosphor may be divided separately.

The light emitting devices 133a of the first light source unit 130a are disposed to face the light emitting devices 133b of the second light source unit 130b.

The light emitting elements 133a of the first light source 130a and the light emitting elements 133b of the second light source 130b may have different color temperature values. For example, the plurality of light emitting elements 133a included in the first light source unit 130a are warm white LEDs, and the plurality of light emitting elements 133b included in the second light source unit 130b are cool. It may be a cool white LED. The warm white light emitting device and the cool white light emitting device emit white light. Since the warm white light emitting device and the cool white light emitting device may emit a correlation color temperature, respectively, to emit white light of mixed light, a color rendering index (CRI) indicating closeness to natural sunlight is increased. Therefore, the color of the real object can be prevented from being distorted, and the eye fatigue of the user is reduced.

The first light source 130a may further include a heat radiation sheet 135a. The heat dissipation sheet 135a is disposed between the substrate 131a and the first case 150a.

The first light source unit 130a may include first and second reflective members 137a-1 and 137a-2.

The first reflective member 137a-1 and the second reflective member 137a-2 are disposed on the substrate 131a and are disposed with the light emitting element 133a therebetween. In addition, the first reflecting member 137a-1 and the second reflecting member 137a-2 are accommodated in the accommodating part 157a of the first case 150a illustrated in FIG. 5. In addition, the first reflective member 137a-1 is disposed on the inner surface of the upper case 153a of the first case 150a of FIG. 5, and the second reflective member 137a-2 is the first case 150a. It is disposed on the inner surface of the lower case (155a) of.

The first reflecting member 137a-1 and the second reflecting member 137a-2 have a reflecting surface that reflects light from the light emitting element 133a.

The reflective surface of the first reflective member 137a-1 and the reflective surface of the second reflective member 137a-2 may be symmetrical. The reflective surface of the first reflective member 137a-1 and the reflective surface of the second reflective member 137a-2 may form a hyperbola. In this case, the light emitted from the light emitting element 133a may be emitted along the reflection surface of the first reflection member 137a-1 and the reflection surface of the second reflection member 137a-2. In addition, the reflective surface of the first reflective member 137a-1 and the reflective surface of the second reflective member 137a-2 may form an ellipse. In this case, the light emitted from the light emitting element 133a is reflected by the reflective surface of the first reflective member 137a-1 and the reflective surface of the second reflective member 137a-2, and then converges at one focal point.

The reflective surface of the first reflective member 137a-1 and the reflective surface of the second reflective member 137a-2 may be asymmetrical. That is, the reflective surface of the first reflective member 137a-1 may form a hyperbola, and the reflective surface of the second reflective member 137a-2 may form an ellipse. In addition, the reflective surface of the first reflective member 137a-1 may be an ellipse, and the reflective surface of the second reflective member 137a-2 may be an ellipse, but two ellipses may be different from each other. In this case, the light emitted from the light emitting element 133a is collected at each focus of two ellipses.

1 to 4, the first plate 110a and the second plate 110b are disposed between the first case 150a and the second case 150b.

The first plate 110a and the second plate 110b may be long in one direction and have a predetermined thickness.

One side of the first plate 110a is connected to the first case 150a and the other side is connected to the second case 150b. One side of the second plate 110b is connected to the first case 150a and the other side is connected to the second case 150b. Therefore, the first plate 110a and the second plate 110b may be disposed to face each other, and both may be disposed to be substantially parallel.

The first plate 110a and the second plate 110b allow the light from the first and second light source units 130a and 130b to be emitted to the outside. To this end, the first and second plates 110a and 110b may have holes 115a and 115b.

The hole 115a of the first plate 110a penetrates through the outer and inner surfaces of the first plate 110a. The holes 115a are disposed in the plurality of first plates 110a. The shape of the hole 115a is rectangular in shape, but is not limited thereto, and may have various shapes. The plurality of holes 115a may be uniformly disposed on the first plate 110a or non-uniformly. For example, the plurality of holes 115a may be disposed only at the center of the first plate 110a or only at the outer portion, and disposed more at the center of the first plate 110a than at the center of the first plate 110a or at the outer side of the center. More can be placed in the department.

The hole 115b of the second plate 110b penetrates through the outer and inner surfaces of the second plate 110b. The holes 115b are disposed in the second plate 110b in plurality. The shape of the hole 115b is rectangular in shape, but is not limited thereto, and may have various shapes. The plurality of holes 115b may be uniformly disposed on the second plate 110b or non-uniformly. For example, the plurality of holes 115b may be disposed only at the center portion of the second plate 110b or only at the outer portion thereof, and disposed more at the center portion than the outer portion of the second plate 110b or outside the center portion. More can be placed in the department.

The holes 115a of the first plate 110a and the holes 115b of the second plate 110b may not only have the same size, but may have different sizes as shown in the drawing.

When the holes 115a of the first plate 110a and the holes 115b of the second plate 110b have the same size, the amount of light emitted to the holes 115a of the first plate 110a and the second plate 110b are the same. The amount of light emitted to the holes 115b of the same) is the same.

On the other hand, when the sizes of the holes 115a of the first plate 110a and the holes 115b of the second plate 110b are different, the amount of light emitted to the holes 115a of the first plate 110a and the second plate are different. The amount of light emitted into the holes 115b of 110b is different.

That is, the larger of the holes of the holes 115a of the first plate 110a and the holes 115b of the second plate 110b may emit more light to the outside. In the drawing, although the hole 115b of the second plate 110b is shown to be larger than the hole 115a of the first plate 110a, the hole 115a of the first plate 110a is not limited thereto. It may be larger than the hole 115b of the second plate 110b.

1 to 3, the first and second end caps 170a and 170b are formed of rectangular parallelepipeds formed in the first and second cases 150a and 150b and the first and second plates 110a and 110b. Cover two openings respectively.

The first and second end caps 170a and 170b prevent light from escaping to both sides, and stably fix the lighting module according to the embodiment.

The first and second end caps 170a and 170b may be coupled to the first and second cases 150a and 150b through fastening means such as screws. In addition, for more stable fixing, the first and second plates 110a and 110b may be coupled together through the fastening means.

FIG. 6 is a cross-sectional view taken along line AA ′ of FIG. 1 and illustrates a modified example of the lighting module illustrated in FIG. 4.

The lighting module illustrated in FIG. 6 further adds the first optical sheet 120a and the second optical sheet 120b to the lighting module illustrated in FIG. 4. Therefore, hereinafter, only the first and second optical sheets 120a and 120b will be described in detail, and other components will be replaced with the above description. Here, the first and second plates 110a and 110b may or may not have a plurality of holes.

The first and second optical sheets 120a and 120b are disposed on inner surfaces of the first and second plates 110a and 110b. The first and second optical sheets 120a reflect light from the first and second light sources 130a and 130b.

The first optical sheet 120a is disposed on the inner surface of the first plate 110a to diffuse the light from the first and second light sources 130a and 130b. In particular, the first optical sheet 120a may diffusely reflect the light from the first and second light source units 130a and 130b.

When the first optical sheet 120a is diffusely reflected, a large amount of light may be reflected in the direction of the second plate 110b and the uniformity of the light toward the second plate 110b may be improved.

The second optical sheet 120b is disposed on the inner surface of the second plate 110b to diffuse the light from the first and second light sources 130a and 130b. In particular, the second optical sheet 120b may specularly reflect light from the first and second light sources 130a and 130b.

When the second optical sheet 120b performs specular reflection, the light from the first and second light source parts 130a and 130b can be spread widely in the direction of the first plate 110a.

In particular, when the first optical sheet 120a is diffusely reflected and the second optical sheet 120b is specularly reflected, it is advantageous when more light is emitted through the second plate 110b than the first plate 110a. .

The first and second optical sheets 120a and 120b may further include a fluorescent material. When the fluorescent material is included in the first and second optical sheets 120a and 120b, the color rendering index of the light emitted through the first and second plates 110a and 110b may be improved.

In addition, the first and second optical sheets 120a and 120b may further include additives. The additive evenly disperses the fluorescent material in the first and second optical sheets 120a and 120b. In addition, the first and second optical sheets 120a and 120b may further include a diffusion material. The diffusion material may increase the excitation rate of the fluorescent material.

Meanwhile, the first and second optical sheets 120a and 120b may be the first and second optical layers 120a and 120b.

The first optical layer 120a may be coated on the inner surface of the first plate 110a, and the second optical layer 120b may be coated on the inner surface of the second plate 110b. The role of the first optical layer 120a is the same as that of the first optical sheet 120a described above, and the role of the second optical layer 120b is the same as the role of the second optical sheet 120b described above.

FIG. 7 is a cross-sectional view taken along line AA ′ of FIG. 1 and illustrating another modified example of the lighting module illustrated in FIG. 4.

The lighting module illustrated in FIG. 7 further includes first and second diffusion plates 190a and 190b to the lighting module illustrated in FIG. 6. Therefore, hereinafter, only the first and second diffusion plates 190a and 190b will be described, and the remaining components are replaced with the above description. Here, the first and second plates 110a and 110b may or may not have a plurality of holes.

The first diffusion plate 190a may be disposed on the outer surface of the first plate 110a, and the second diffusion plate 190b may be disposed on the outer surface of the second plate 110b. The first and second diffusion plates 190a and 190b diffuse light passing through the first and second plates 110a and 110b. In other words, the first and second diffusion plates 190a and 190b are intended to make the light distribution of the light emitted from the lighting module according to the embodiment into lambosian.

In addition, the first and second diffuser plates 190a and 190b may have hot spots of the first and second light sources 130a and 130b projected by the user from the outside to the inner surface of the first plate 110a through the second plate 110b. You can make the spots invisible.

Table 1 below is a specification of the lighting module according to the above-described embodiment.

Product Item Value Strip Spce.
(13S * 5P)

Voltage (V) 39
Current (mA) 350
Power (W) 13.65
Module Spec.




Total Lumen output (lm) Up Lumen Output 2,500
500 Down Lumen Output 2,000 Module Power (W)
27.3
Efficacy (lm / W)
90
CCT (K)
4,000
CRI
80
Fixture Spec.
Lumen Output (lm)
10,000 (Up: 2,000, Down: 8,000)
DC Power Consumption (W)
110

Referring to Table 1, in the lighting module according to the embodiment, the lumen value emitted upward is smaller than the lumen value emitted downward. Conversely, however, the lumens emitted upwards may be greater than the lumens emitted downwards.

In the lighting module according to the embodiment, the lumen value emitted downward may be more than 1 times and 9 times less than the lumen value emitted upward.

Width (W (mm)) * height (H (mm)) * length (L (mm)) of the lighting module according to the embodiment may be any one of 80 * 12 * 560 or 45 * 12 * 560.

8 and 9 are graphs showing optical characteristics of the lighting module shown in FIG. 7.

In the graph shown in FIG. 8, the horizontal axis represents position, and the vertical axis represents brightness. Here, '0' on the horizontal axis means an intermediate point between the first light source unit 130a and the second light source unit 130b shown in FIG. 7.

8 and 9, the lighting module shown in FIG. 7 simultaneously emits light up and down, and the amount of light emitted downward is emitted up. It can be seen that more than the amount of light.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

110a: first plate
110b: second plate
120a: first optical sheet
120b: second optical sheet
130a: first light source unit
130b: second light source unit
150a: first case
150b: second case
170a: first end cap
170b: second end cap

Claims (13)

A first plate for emitting light;
A second plate spaced apart from the first plate and emitting light;
A first light source unit disposed on one side of the first plate and the second plate and emitting light between the first plate and the second plate;
A second light source unit disposed on the other side of the first plate and the second plate and emitting light between the first plate and the second plate;
A first case having a first accommodating portion in which the first light source is disposed;
A second case having a second accommodating part in which the second light source part is disposed;
A first reflecting member disposed in the first accommodating portion and reflecting light from the first light source portion in a predetermined direction; And
A second reflecting member disposed in the second accommodating part and reflecting light from the second light source part in a predetermined direction;
. delete The method of claim 1,
The lighting module further comprises an end cap coupled to the first plate, the second plate, the first case and the second case. A light source unit having a substrate and a light emitting element disposed on the substrate;
A case having a base on which the substrate is disposed, and an upper case and a lower case connected to the base and corresponding to each other;
A first plate connected to the upper case and configured to emit a part of the light emitted from the light source; And
And a second plate connected to the lower case, spaced apart from the first plate by a predetermined distance, a portion of the light emitted from the light source unit is emitted, and the amount of light emitted is different from the amount of light emitted from the first plate.
The light source unit has a lighting module having a first reflecting member disposed on the inner surface of the upper case and a second reflecting member disposed on the inner surface of the lower case. The method of claim 4, wherein
And a reflection surface of the first reflection member and a reflection surface of the second reflection member are symmetrical or asymmetrical. The method according to claim 1 or 4,
The reflecting surface of the first reflecting member and the reflecting surface of the second reflecting member are hyperbolic or elliptic. The method according to claim 1 or 4,
A first optical layer disposed on an inner surface of the first plate and reflecting incident light; and
And a second optical layer disposed on an inner surface of the second plate and reflecting incident light. The method of claim 7, wherein
The first optical layer diffusely reflects incident light, and the second optical layer specularly reflects the incident light. The method of claim 4, wherein
The lighting module further comprises a heat dissipation sheet disposed between the substrate of the light source unit and the base of the case. The method of claim 4, wherein the upper case,
Lighting module having a groove for receiving one side of the first plate. The method according to claim 1 or 4,
The first plate and the second plate has a plurality of holes,
And the hole of the second plate is larger than the hole of the first plate. The method according to claim 1 or 4,
The first plate and the second plate has a plurality of holes,
And the holes of the first plate and the holes of the second plate are uniformly or non-uniformly disposed. The method according to claim 1 or 4,
A first diffusion plate disposed on an outer surface of the first plate; And
A second diffusion plate disposed on an outer surface of the second plate;
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