KR101846349B1 - LED light housing and LED device - Google Patents

Abstract

According to the present invention, an LED lighting housing and an LED device are disclosed. The LED lighting housing comprises: a lower housing part in which an LED lens can be installed wherein the lower housing part has a penetration shape; and an upper housing part provided above the lower housing part, and including an uneven unit formed along an inner surface of the housing to block glare light out of a preset beam angle range of the LED lens.

Description

Technical Field [0001] The present invention relates to an LED light housing and an LED device,

The present disclosure relates to an LED light housing and an LED element.

Light emitting diode (LED) refers to a light emitting diode device. LED is a device that uses light emitting when a current flows through a PN junction of a compound semiconductor such as GaP or GaAs. In manufacturing a light emitting diode A light emitting diode which generates light of a constant wavelength can be manufactured by controlling the composition ratio of the semiconductor compound.

Such a light emitting diode (LED) is an optoelectronic device in which when a voltage is applied to a junction structure of a P-type and an N-type semiconductor, energy corresponding to a bandgap of the semiconductor is emitted as light due to the combination of electrons and holes, It is faster than general light bulbs and consumes less than 20% of white light, so it is used in various fields with high efficiency lighting. Particularly, although the power consumption is relatively small, the brightness is very bright.

Accordingly, there have recently been proposed many LED lighting apparatuses capable of illuminating with minimum power by taking advantage of these advantages. The LED light source diffuses the light, which has the disadvantage that the light amount is dispersed, and a technique of collecting and collecting light through a separate lens is also used.

The present disclosure relates to an LED light housing and an LED element.

An LED illumination housing according to an embodiment includes a housing lower portion to which an LED lens can be mounted; And a housing upper portion provided on the lower portion of the housing and including a recessed portion formed along an inner surface of the housing to shield glare light directed to a predetermined beam angle range of the LED lens.

The concavities and convexities may be anti-reflective coatings.

The protrusions may have a protruding pattern having a lower protruding surface and an upper protruding surface.

The lower projecting surface may satisfy the following expression.

[Equation 1]

θ _{Lower protruding surface} <θ _{Reference light}

Here, θ _{lower projecting surface Represents} the angle between the lower protruding surface and the horizontal line, Represents the angle between the lowest angle ray and the horizontal line that the external observer can see.

The upper projecting surface may satisfy the following expression.

&Quot; (2) &quot;

θ _{upper protruding surface} <θ _LED

Here, _{the upper projecting surface} θ Represents the angle between the upper projecting surface and the horizontal line, and? _LED Represents the angle of light incident on the upper projecting surface from the LED light source.

Wherein the lower protruding surface is vertical with respect to the inner surface of the housing.

The upper projecting surface may have an inclination of 45 degrees or more with respect to the inner surface of the housing.

The projections and depressions may have a structure in which the protruding patterns are repeated without a gap.

The concave-convex portion may have any one of a circular protruding structure, a circular depression structure, a sine wave structure, and a square wave structure.

The concave-convex portion may be formed of any one of a screw structure, a stripe structure, a square lattice structure, a diamond cone structure, and a porous pattern structure along the inner surface of the housing illumination.

The upper portion of the housing can be bent from the lower portion of the housing so that light within a predetermined beam angle range of the LED lens does not contact the upper portion of the housing.

The outer surface of the upper portion of the housing may be sanded.

The upper portion of the housing may be formed of a colored transparent material.

And a housing middle portion provided between the lower portion of the housing and the upper portion of the housing and including an inner protrusion protruding inward of the housing illumination.

The central portion of the housing may further include an outer protrusion protruding outwardly of the housing illumination.

The outer surface of the housing illumination may have any one of circular, square, hexagonal, and octagonal shapes.

The inner surface of the housing illumination may have a circular shape.

The housing upper portion may have a different height continuously or discontinuously along the circumferential direction of the housing illumination.

The upper portion of the housing may have a differentiable functional shape when the height of the upper portion of the housing is expressed as a function along the circumferential direction of the housing illumination.

The housing upper portion may have a function shape having at least one maximum point.

The upper portion of the housing may have a function shape having two maximum points facing each other.

The upper portion of the housing may have a function shape having four maximum points provided at intervals of 90 degrees along the circumferential direction of the housing illumination.

According to an embodiment,

An LED lighting housing according to the above-described embodiment; An LED lens mounted on the lower portion of the housing; And an LED light source mounted under the LED lens.

The LED lighting housing and the LED lens may be integrated.

And an LED cap for supporting the LED lens and the LED light source.

The LED illumination housing and the LED device according to the present embodiment can effectively prevent the glitter light directed out of the predetermined beam angle range of the LED lens to prevent the light pollution.

The LED illumination housing and the LED element according to the present embodiment may have a housing superstructure having an appropriate shape according to the alignment direction of the LED. As a result, it is possible to effectively block the glare excluding the light directed to the intended alignment direction, thereby preventing light pollution.

The LED lighting housing and the LED device according to the present embodiment can realize the intended glare light blocking performance according to various protruding patterns and shapes of the concave and convex portions.

1A and 1B illustrate an LED lighting housing according to one embodiment.
2A is a diagram showing an LED element including an LED illumination housing according to FIGS. 1A and 1B.
2B is a view schematically showing an LED element borrowing a wide-angle LED lens.
2C is a view schematically showing an LED element borrowed from the upper portion of the colored transparent housing.
3A and 3B are views illustrating an LED illumination housing according to another embodiment.
FIG. 4 is a view of an LED element including an LED lighting housing according to FIGS. 3A and 3B. FIG.
5 is a view showing an LED element according to another embodiment.
6 is a cross-sectional view showing a protruding pattern on the upper part of the housing according to various embodiments.
7A and 7B are views showing the principle of glare light blocking according to the inclination of the lower projecting surface of the concave-convex portion.
8 is a view showing the principle of glare light blocking according to the inclination of the upper projecting surface of the concave-convex portion.
9 is a view showing the shape of the concave-convex portion on the upper part of the housing according to various embodiments.
10 is a cross-sectional view schematically showing a cross-sectional view of an LED illumination housing according to various embodiments.
11 is a view showing an arrangement of LED elements according to various embodiments.
12 is a cross-sectional view schematically showing an LED element for emitting LED light in a plurality of alignment directions.
13 is a view illustrating an LED illumination housing and an LED device according to another embodiment.
FIG. 14 is a graph schematically showing a perspective view of the LED lighting housing according to FIG. 13 and a function shape along the circumferential direction of the housing upper portion height.
15 is a view showing an LED lighting housing and an LED device according to another embodiment.
FIG. 16 is a graph schematically showing a perspective view of the LED lighting housing according to FIG. 15 and a function shape along the circumferential direction of the housing top height.
17 is a view showing an LED illumination housing and an LED element according to another embodiment.

Brief Description of the Drawings The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the embodiments shown herein but may be embodied in many different forms and should not be construed as being limited to the preferred embodiments of the present invention. do. BRIEF DESCRIPTION OF THE DRAWINGS The above and other aspects of the present invention will become more apparent by describing in detail preferred embodiments thereof with reference to the attached drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. .

1A and 1B are diagrams illustrating an LED lighting housing 100 according to one embodiment. 1B is a sectional view taken along the line A-A 'of FIG. 1A. 1A and 1B, an LED lighting housing 100 includes a housing central portion 130 including a housing upper portion 110 including a recessed portion 111, a housing lower portion 120, and an inner protrusion 131 can do.

The LED illumination housing 100 according to the present embodiment may have a through-hole structure. For example, the LED illumination housing 100 may have a cylindrical shape with a central portion penetrating therethrough. The inner and outer surfaces of the LED lighting housing 100 may have the same shape but are not limited thereto. For example, the shape of the end face of the inner surface is of the LED illumination housing 100 according to the present embodiment may be circular, and the shape of the end surface of the outer surface os may be circular. The shape of the end faces of the inner surface is and the outer surface os will be described later in Fig.

An LED lens (not shown) may be mounted on the housing lower portion 120. In the case of an LED lighting fixture, an LED light source (not shown) is an optical element required for the diffusion of light. The housing lower part 120 according to the present embodiment can provide a groove into which an LED lens (not shown) can be mounted.

The housing middle portion 130 may be provided with an inner protrusion 131. The protrusion 131 may have a structure protruding toward the center of the LED illumination housing 100. The protruding portion 131 may have a function of fixing the upper surface of the LED lens (not shown) so that the LED lens (not shown) is not shaken or protruded inside the LED illumination housing 100. The inner protrusion 131 may be protruded by a limited length so as not to block the path of the light diffused by the LED lens (not shown).

The housing upper portion 110 may include a concave / convex portion 111 formed along the inner surface is. The concave and convex portion 111 can prevent leakage of light outside the established angle of light diffused by the LED lens (not shown) fixed to the housing lower portion 120. The concave-convex portion 111 may have a structure in which the protruding pattern is repeated. For example, the protruding pattern may be composed of a lower protruding surface 111a and an upper protruding surface 111b. The lower projecting surface 111a may be substantially perpendicular with respect to the inner surface is. The upper projecting surface 111b may have an angle of 45 or more with respect to the inner surface is. The protruding pattern can be repeated without a gap. Referring to FIG. 1A, the irregularities 111 may be arranged in parallel stripes along the inner surface is. The configuration of the concave-convex portion 111 is not limited to the above-described example, and various embodiments of the concave-convex portion 111 will be described later with reference to FIG. 6 and FIG.

The height of the housing upper portion 110 may be determined based on the beam angle of the LED lens (not shown) and the length of the diameter of the housing upper portion 110. When the height of the housing upper part 110 is increased, the generation of glare light can be easily blocked, but the volume of the LED element can be increased. When the height of the housing upper part 110 is lowered, the volume of the LED element becomes smaller, but the glare light may leak. Accordingly, the user can appropriately design the height of the housing upper portion 110 according to his / her intention.

The concave and convex portions 111 may be anti-reflective coatings for blocking glare. For example, the irregular portion 111 may be anti-reflective coated with nanoparticles. The concave-convex portion 111 may have a reflectance of less than 5%, and may have a high glue blocking efficiency.

FIG. 2A is a diagram illustrating an LED device 1000 including an LED lighting housing according to FIGS. 1A and 1B. 2A, the LED 1000 includes an LED illumination housing 100, an LED 1220 coupled to a lower portion of the housing, an LED light source 1210, an LED 1220, an LED light source 1210, And an LED cap 1230 for supporting the LED cap 1230.

The LED light source 1210 refers to an integral light source including a light emitting diode (LED). In the present embodiment, the specific type and shape of the LED light source 1210 are not particularly limited, and may include a single light source using a single light emitting diode.

The LED 1220 may have a groove at the bottom for easy coupling with the LED light source 1210. The LED 1220 can diffuse the light irradiated by the LED light source 1210 by a predetermined diffusion angle? ₁ . The diffusion angle? ₁ can be determined according to the specific structure and material of the LED lens 1220. [ However, due to the error in the refractive index of the LED lens 1220 and the unevenness on the surface, the diffused light that has exited the LED lens 1220 can be diffused at a predetermined diffusion angle? ₁ or more. Such unnecessary diffused light can be diffused and diffused from the upper portion 110 of the housing, and can be emitted to the outside, which becomes glare light. The LED element 1000 according to the present embodiment changes the optical path of unnecessary ambient light diffused above a predetermined diffusion angle? ₁ through the structure of the protrusions 111 as described above, .

The LED cap 1230 is a structure for supporting the LED light source 1210 and the LED lens 1220. The LED cap 1230 may have a shape that is engaged with the housing lower portion 120. For example, the cross-sectional shape of the inner face "is" of the LED lighting housing 100 and the cross-sectional shape of the outer face "os" of the LED cap 1230 may coincide with each other. In this case, shaking and clearance between the LED illumination housing 100 and the LED cap 1230 can be prevented.

FIG. 2B is a view schematically showing an LED element 1000 'borrowing a wide-angle LED lens. 2A, the predetermined diffusion angle? ₂ of the LED lens 1220 may be larger than the diffusion angle? ₁ according to FIG. 2A. The housing upper portion 110 'has a predetermined diffusion angle &amp;thetas; ₂ of the LED lens 1220 May be formed so as not to come into direct contact with the light rays according to the light. Thus, the housing upper portion 110 'has a structure that is bent with respect to the center portion 130 of the housing, so that even when the diffusion angle? ₂ is a wide angle, proper glare light blocking effect can be obtained.

Referring to FIGS. 2A and 2B, the housing upper portions 110 and 110 'may be formed of a transparent material, and may be formed by sanding the outer surface os. In this case, since some light escaping through the housing tops 110 and 110 'is neutralized, the glare seen from the outside can be reduced.

Figure 2c is a schematic representation of an LED element 1000 &quot; borrowing a colored transparent housing top portion 110 &quot;.

Referring to FIG. 2C, the housing top 110 '' may be formed of a transparent colored material. In this case, the color of some light escaping through the housing top 110 '' is changed, thereby reducing glare seen from the outside. For example, the light can be changed to a color such as green light or yellow light which can reduce visual fatigue. In this case, the housing upper portion 110 &quot; may be formed of a green polycarbonate of a transparent material or a yellow polycarbonate of a transparent material.

3A and 3B are diagrams illustrating an LED illumination housing 200 according to another embodiment. FIG. 3B is a cross-sectional view taken along the line B-B 'of FIG. 3A. FIG. 4 is a diagram illustrating an LED device 2000 including an LED lighting housing 200 according to FIGS. 3A and 3B.

3A and 3B, the LED illumination housing 200 includes a housing middle portion 230 including a housing upper portion 210, a housing lower portion 220, and an outer protrusion 232. [ The LED lighting housing 200 according to the present embodiment is different from the LED lighting housing 100 according to FIG. 1A in that the housing middle portion 230 further includes an outer protrusion 232. A detailed description related to the concave / convex portion 211 and the inner convex portion 231 will not be repeated, as described in FIGS. 1A and 1B.

The housing middle portion 230 may include an outer protrusion 232 protruding outwardly of the LED lighting housing 200. The outer protrusion 232 may protrude perpendicularly with respect to the outer surface os, but is not limited thereto. Referring to FIG. 4, the outer protrusion 232 engages with the fixing plate when packaging the LED device 2000 to prevent the LED device 2000 from swinging or protruding. The cross-sectional shape of the outer protrusion 232 is shown in a quadrangular shape, but is not limited thereto and may have various shapes required in relation to the fixing plate.

5 is a view showing an LED device 3000 according to another embodiment. The LED device 3000 according to the present embodiment may include a housing upper portion 3110, a housing lower portion 3120, a housing middle portion 3130, an LED light source 3200, and an LED lens 3300.

5, the housing upper portion 3110, the housing lower portion 3120, the housing middle portion 3130, and the LED lens 3300 may be integrally formed. The housing upper portion 3110, the lower housing portion 3120, the housing central portion 3130, and the LED lens 3300 can be formed by a single molding process, thereby reducing the processing cost. At this time, the housing upper portion 3110, the housing lower portion 3120, the housing middle portion 3130, and the LED lens 3300 may be formed of a transparent material. So that the LED 3300 has a function of diffusing light. However, since the housing upper portion 3110, the lower housing portion 3120, and the housing middle portion 3130 must block light, anti-reflective coating can be applied to the outer shapes of these components. For example, an anti-reflective paint nanoclay can be applied to the outer surface of the housing top 3110, the housing bottom 3120, and the housing middle 3130.

6 is a cross-sectional view showing a protruding pattern on the upper part of the housing according to various embodiments.

Referring to FIG. 6 (a), the present embodiment can have a shape in which the projections and depressions repeat the protruding patterns without a gap. The present embodiment may be such that the lower projecting surface is perpendicular or substantially perpendicular to the inner surface (is in Fig. 1). The upper projecting surface may have an inclination of 45 degrees or more with respect to the inner surface (is shown in Fig. 1). The embodiment (a) satisfying these conditions exhibits a Glare light blocking efficiency close to 100% in the simulation result.

Referring to FIG. 6 (b), this embodiment can have a shape in which the projections and depressions repeat the protruding patterns. The present embodiment may be such that the lower projecting surface is perpendicular or substantially perpendicular to the inner surface (is in Fig. 1). The upper projecting surface may have an inclination of 45 degrees or more with respect to the inner surface (is shown in Fig. 1). The embodiment (b) satisfying these conditions shows a glitter light blocking efficiency of 80% or more in the simulation result.

Referring to FIG. 6 (c), the present embodiment can have a shape in which the projections and projections repeat without protruding patterns. In this embodiment, the lower projecting surface may have a slope of about 45 degrees with respect to the inner surface (is in Fig. 1). The upper projecting surface may have a slope of about 45 degrees with respect to the inner surface (is shown in Fig. 1). The embodiment (c) satisfying these conditions shows a glare light blocking efficiency of 50% or more in the simulation result.

Referring to FIG. 6 (d), the present embodiment can have a shape in which the concavo-convex portion repeats a sinusoidal pattern without a gap. The present embodiment is not limited to the sinusoidal wave form, and may include all of the sinusoidal waves. For example, the semicircular protrusions and semicircular depressions may form one pattern and be repeated tightly. The embodiment (d) satisfying these conditions shows a glare light blocking efficiency of 30% or more in the simulation result.

Referring to FIG. 6 (e), this embodiment can have a shape in which the projections and depressions repeatedly protrude finely. In this embodiment, the lower projecting surface may have an inclination of 45 degrees or more with respect to the inner surface (is in Fig. 1). The upper projecting surface may be vertical or substantially vertical with respect to the inner surface (is in Fig. 1). The embodiment (e) satisfying these conditions exhibits a glare light blocking efficiency of 20% or more in the simulation result.

Referring to FIGS. 6 (f) and 6 (g), this embodiment can have a shape in which the concavo-convex portion and the rectangular wave-shaped pattern are seamlessly repeated. The present embodiment may be such that the lower projecting surface is perpendicular or substantially perpendicular to the inner surface (is in Fig. 1). The upper projecting surface may be vertical or substantially vertical with respect to the inner surface (is in Fig. 1). Alternatively, the present embodiment may include a shape in which the square wave shape is somewhat distorted. Embodiments (f) and (g) satisfying these conditions show a glare light blocking efficiency of about 20% in the simulation result.

Referring to FIGS. 6 (h) and 6 (i), the present embodiment may have a shape in which a circular protruding pattern or a circular depressed pattern is repeatedly repeated. The circular protruding pattern or circular depressed pattern according to the present embodiment may include a circular or pseudo-circular shape. The examples (h) and (i) satisfying these conditions show a glitter light blocking efficiency of about 10% in the simulation results.

7A and 7B are views showing the principle of glare light blocking according to the inclination of the lower projecting surface of the concave-convex portion.

Referring to FIGS. 7A and 7B, the LED light from the LED light source may be reflected by the concave-convex portions 111a-1 and 111b-1. At this time, a part of the LED light may be reflected by the upper projecting surface 111b-1, and a part may be reflected by the lower projecting surface 111a-1. In the design structure in which the LED light source is provided at the lower part of the LED illumination housing, the LED light can be reflected at a higher ratio on the lower projection surface 111a-1. Therefore, in order to effectively reduce the outgoing Glare light, it may be desirable to have a structure in which the lower projecting surface 111a-1 is not visible when the observer nearest to the horizontal plane is assumed.

For example, when looking at the LED illumination housing with respect to the observer nearest to the horizontal plane, the observer's line of sight is the first point (A) which is the uppermost point of the inner surface (is) A light beam connecting the second point B, which is the vertex of the concave-convex portions 111a-1 and 111b-1, located at the top of the inner surface is of the light guide plate 111a. These first point (A) and second point (B) define the ray of the lowest slope &lt; RTI ID = 0.0 &gt; _A &lt; / RTI &gt; An angle? _B can be defined between the first lower surface 111a-1 and the horizontal line. 7A, when the angle &amp;thetas; _B is equal to &amp;thetas; _A The light reflected by the first lower surface 111a-1 can be observed by an observer who is closest to the horizontal plane. Therefore, the glare light may not be effectively blocked. 7B, when the angle? ' _B formed by the first lower surface 111a-2 and the horizontal line is? _A The blocking efficiency of the glare light can be improved. For example, the angle? ' _B formed by the first lower surface 111a-2 and the horizontal line may be 45 degrees or less. For example, the first lower surface 111a-2 may have a high Glare light blocking efficiency when it is vertical or substantially vertical with respect to the inner surface is. This confirms that the results in Examples (a) and (b) of FIG. 6 also show a result of having a glare light blocking efficiency of 80% or more. This is defined as follows.

[Equation 1]

θ _{Lower protruding surface} <θ _{Reference light}

Here, θ _{lower projecting surface Represents} the angle between the lower protruding surface and the horizontal line, Represents the angle between the lowest angle ray and the horizontal line that the external observer can see. Specifically, _{reference light} θ Connecting the vertex located at the uppermost one of the concave and convex portions 111 of the inner surface is located at the uppermost point of the inner surface is located on the first side and the second side which is opposite to the first side When defining a ray, it means the angle between this ray and the horizontal line.

8 is a view showing the principle of glare light blocking according to the inclination of the upper projecting surface of the concave-convex portion. 7A and 7B, the design conditions of the lower projecting surface are confirmed. In FIG. 8, the design conditions of the upper projecting surface are confirmed.

The lower projecting surfaces 111a-3 and 111a-4 according to the present embodiment may be substantially perpendicular to the inner surface. The upper projecting surface 111b-3 according to the present embodiment has an angle &amp;thetas; _C Can be defined. When the angle of the light from the LED light source incident on the upper projecting surface 111b-3 is θ _LED , Θ _C - θ _LED The light from the LED light source may be reflected by the upper projecting surface 111b-3 and leak to the outside (reflected light_3). Therefore, the θ _C - θ _LED > 0 or θ _C =? _LED , the blocking efficiency of the glare light may be reduced.

In the case of the upper projecting surface 111b-4, θ _D Can be defined. The angle of the light from the LED light source incident on the upper projecting surface 111b-4 is θ _LED , Θ _D - θ _LED Can be negative. In this case, the light is not directed toward the upper projecting surface (111b-4), is reflected on the lower projecting surface (111a-4) may be reflected back into the interior (reflected light _4) Therefore, θ _D - θ _LED &Lt; 0, the blocking efficiency of the glare light can be increased. This is defined as follows.

&Quot; (2) &quot;

θ _{upper protruding surface} <θ _LED

Here, _{the upper projecting surface} θ Represents the angle between the upper projecting surface and the horizontal line, and? _LED Represents the angle of light incident on the upper projecting surface from the LED light source. Specifically, θ _LED Represents the highest angle value of the angle range of light incident on the upper projecting surface.

9 is a view showing the shape of concavities and convexities of an upper housing according to various embodiments. Referring to FIG. 9, description will be made with reference to a certain housing area (up) as to how the concave-convex part can be arranged on the inner surface of the housing upper part. FIG. 9 is a diagram showing how the concave-convex portion according to FIG. 6 is arranged on the inner surface of the upper part of the housing. FIGS. 9 and 6 can independently form contents. For example, any embodiment of FIG. 6 and any embodiment of FIG. 9 may be selected together and implemented on an LED illumination housing.

9 (a) to 9 (d), in this embodiment, a recessed portion may be formed in the housing area up with a screw structure. (a) and (b) illustrate a right-handed embodiment, and (c) and (d) illustrate left-hand threaded embodiments. (a) and (c) illustrate continuous threaded configurations and (b) and (d) embodiments show one or more threads. If the concavo-convex portion is formed according to this embodiment, it can be advantageous in terms of process cost and simplicity. This is because, when the concave-convex part and the light housing are formed by a mold, it is easy to separate them from unnecessary parts by turning the housing.

Referring to Fig. 9 (e), this embodiment shows a striped screw shape. According to this embodiment, when the concavo-convex portion is formed, the density ratio of the pattern is high, so that a higher glare light blocking efficiency can be obtained.

Referring to FIG. 9 (f), this embodiment shows a parallel stripe pattern.

Referring to Fig. 9 (g), this embodiment shows vertical stripes.

Referring to FIG. 9 (h), this embodiment shows a parallel grid pattern. According to this embodiment, when the concavo-convex portion is formed, the density ratio of the pattern is high, so that a higher glare light blocking efficiency can be obtained.

9 (i), this embodiment shows a diamond horn structure. According to this embodiment, when the concavo-convex portion is formed, the density ratio of the pattern is high, so that a higher glare light blocking efficiency can be obtained.

The embodiments of FIGS. 9 (a) to 9 (i) may be compatible with all embodiments according to FIG.

Referring to FIG. 9 (j), this embodiment shows a porous pattern structure. This embodiment can be compatible with the embodiments of FIGS. 6 (h) and 6 (i).

10 is a cross-sectional view schematically showing a cross-sectional view of an LED illumination housing according to various embodiments.

10 (a), the inner surface is is formed in a circular shape, and the outer surface os may be formed in a circular shape. The inner surface is and the outer surface os according to this embodiment may include not only a circular shape but also a circular similar shape, for example, an elliptical shape.

Referring to FIG. 10 (b), the inner surface is formed in a circular shape and the outer surface os may be formed in a rectangular shape. The outer surface os according to the present embodiment may include not only a square but also a similar shape of a quadrangle, for example, a shape in which a vertex is worn.

Referring to FIG. 10 (c), the inner surface is formed in a circular shape and the outer surface os may be formed in a hexagonal shape. The outer surface os according to the present embodiment may include not only hexagonal but also hexagonal similar shapes, for example, shapes in which the vertexes are worn.

Referring to FIG. 10 (d), the inner surface is formed in a circular shape and the outer surface os may be formed in an octagonal shape. The outer surface os according to the present embodiment may include not only an octagon but also a similar shape of an octagon, for example, a shape in which a vertex is worn.

The embodiments of the inner surface is and the outer surface os are illustrative and not limitative. Of course, the shape of the cross section of the inner surface is and the outer surface os may have various shapes depending on the user's intention.

The LED illumination housing and the LED element according to Figs. 1A to 10 may have a function of blocking glare light in all directions irrespective of the direction. Such an LED illumination housing and LED device can be used as a floodlight that does not require a separate orientation.

11 is a view showing an arrangement of LED elements according to various embodiments. 11 (a), the LED device may be a single component. Referring to Figure 11 (b), a plurality of LED elements can be gathered to form a block part. For example, one block component may include a plurality of array elements arranged in an array. Referring to FIG. 11 (b), four LED elements are arranged in 2 X 2, but this is merely an example, and the present invention is not limited thereto. Referring to Fig. 11 (c), a plate-like component in which a plurality of LED elements are gathered to form an array arrangement can be constructed. In FIG. 11 (c), a plurality of LED elements are arranged in a square lattice form, but the present invention is not limited thereto and may be arranged in a hexagonal lattice form.

12 is a cross-sectional view schematically showing an LED element for emitting LED light in a plurality of alignment directions. In the case of the LED illumination, a function of orienting the light in a certain direction may be required unlike a light source which does not have a directionality. For example, in the case of LED streetlights or security lights, it may be required to have the direction of light in at least one orientation. Referring to FIG. 12, the LED device according to an exemplary embodiment is capable of directing the side light in the first light distribution direction and the second light distribution direction, and blocking the glare light in the other direction. The LED lighting housing and the LED element having such a light distribution function will be described later with reference to Figs.

13 is a view showing an LED lighting housing 300 and an LED element 4000 according to another embodiment. 13 (a) is a plan view, and Figs. 13 (b) and 10 (c) are sectional views of the LED illumination housing 300 and the LED element 4000 in different directions. FIG. 14 is a graph schematically showing a perspective view of the LED lighting housing according to FIG. 13 and a function shape along the circumferential direction of the housing upper portion height.

Referring to FIG. 13, the LED illumination housing 300 includes a housing upper portion 310 and a housing lower portion 320. The LED element 4000 includes an LED illumination housing 300, an LED light source 4100 and an LED lens 4200. The housing upper portion 310 may have a recess 311, The detailed configuration is the same as that described above with reference to FIG. 1A to FIG. 9, so that redundant description will be omitted.

13 and 14, the housing top 310 may have different heights, either continuously or discontinuously, along the periphery of the LED light housing 300. For example, the height of the upper portion 310 of the housing may have a sine wave shape, a square wave shape, a circular wave shape, or the like. For example, the housing upper portion 310 may have a high height and the housing upper portion 310 may have a relatively low height in a direction in which it desires to have an orientation, in a direction in which glare light is desired to be blocked. The housing top 310 may have a differentiable functional shape as a function of the height of the housing top 310 along the periphery of the LED light housing 300.

 Referring to FIG. 14, the housing upper portion 310 may have a height shape having two maximum points. The positions of the two maxima can face each other. For example, if the first maximum point is located at? With respect to the circumferential direction, the second maximum point may be located at 2?. When this condition is satisfied, the LED illumination housing 300 can function as a light projection lamp or a street lamp directed in the direction of? / 2 and the orientation of 3? / 2. The position of the maximum point is not limited to the above-described embodiment, and can be changed according to the orientation of the user's intended orientation.

15 is a view showing an LED illumination housing 400 and an LED 5000 according to another embodiment of the present invention. 15 (a) is a plan view, and Figs. 15 (b) and 15 (c) are sectional views of the LED illumination housing 400 and the LED 5000 in different directions. FIG. 16 is a graph schematically showing a perspective view of the LED lighting housing according to FIG. 15 and a function shape along the circumferential direction of the housing top height.

Referring to FIG. 15, the LED illumination housing 400 includes a housing upper portion 410 and a housing lower portion 420. The LED device 5000 includes an LED illumination housing 400, an LED light source 5100, and an LED lens 5200. The housing upper portion 310 may have a concave / convex portion 311, and the specific structure of the convex / concave portion 411 is the same as that described above with reference to FIGS. 1A to 9, so duplicate description will be omitted.

15 and 16, the housing top portion 410 may have a different height continuously or discontinuously along the periphery of the LED lighting housing 400. As shown in FIG. For example, the height of the housing upper portion 410 may have a sine wave shape, a square wave shape, a circular wave shape, or the like. For example, the housing upper portion 410 may have a high height and the housing upper portion 410 may have a relatively low height with respect to the direction in which the glare light is desired to be oriented. The housing top portion 410 may have a differentiable functional shape as a function of the height of the housing top portion 410 along the periphery of the LED illumination housing 400.

 Referring to FIG. 16, the housing upper portion 410 may have a height shape having four maximum points. The positions of the four maxima can be periodically spaced from one another. For example, the first maximum point may be located at 0, the second maximum point may be located at? / 2, the third maximum point may be located at? / 2, and the fourth maximum point may be located at 3? / 2 with respect to the circumferential direction. When this condition is satisfied, the LED lighting housing 300 can function as a light-emitting lamp or a streetlight with a direction of? / 4 and an orientation of 3? / 4, an orientation toward 5? / 4, an orientation toward 7? / 4. The position of the maximum point is not limited to the above-described embodiment, and can be changed according to the orientation of the user's intended orientation.

17 is a view showing an LED lighting housing 500 and an LED element 6100 according to yet another embodiment. 17, the LED illumination housing 500 includes a housing upper portion 510, a lower housing portion 520, and an LED lens 530. The LED device 6000 includes an LED illumination housing 500 and an LED light source 6100. In the LED lighting housing 500 according to the present embodiment, the housing upper portion 510, the lower housing portion 520, and the LED lens 530 may be integrally formed. In this case, since the LED lighting housing 500 can be formed by a single molding process, the process cost can be reduced. At this time, the LED lighting housing 500 may be formed of a transparent material. And the LED 530 has a function of diffusing light. However, since the upper portion 510 and the lower portion 520 of the housing must shield light, anti-reflective coating can be applied to the outer shapes of these components. For example, an anti-reflective paint nanoclay may be applied to the outer surface of the housing top portion 510 and the bottom portion 520 of the housing.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100, 200, 300, 400, 500: LED lighting housing
1000, 2000, 3000, 4000, 5000, 6000:
110, 210, 310, 410, 510:
120, 220, 320, 420, 520:
130, 230, 330:
111:
131: protrusion
232: protrusion
is: inner face
os: outer surface
1210, 3200, 4100, 5100, 6100: LED light source
1220, 3300, 4200, 5200, 6200:
1230: LED cap

Claims (25)

1. An LED lighting housing having a penetrating shape and intercepting glare light,
A lower housing to which the LED can be attached;
And a recessed portion provided on the lower portion of the housing and formed along an inner surface of the housing to block glare light directed to a predetermined beam angle range of the LED lens. The recessed portion is formed continuously or discontinuously at a different height along the circumferential direction of the housing A housing upper part; And
And a housing middle portion which is provided between the lower portion of the housing and the upper portion of the housing and includes an inner protrusion protruding inward of the housing illumination and an outer protrusion protruding outwardly of the housing,
Wherein the concave and convex portion is formed of a screw structure, a square lattice structure, a diamond cone structure, or a porous pattern structure along the inner surface of the housing. The method according to claim 1,
Wherein the concave-convex portion is an anti-reflective coating. The method according to claim 1,
Wherein the concave-convex portion is repeatedly provided with a protruding pattern having a lower protruding surface and an upper protruding surface. The method of claim 3,
Wherein the lower protruding surface satisfies the following expression.
[Equation 1]
θ _{Lower protruding surface} <θ _{Reference light}
Here, θ _{lower projecting surface Represents} the angle between the lower protruding surface and the horizontal line, Represents the angle between the lowest angle ray and the horizontal line that the external observer can see. The method of claim 3,
Wherein the upper protruding surface satisfies the following equation.
&Quot; (2) &quot;
θ _{upper protruding surface} <θ _LED
Here, _{the upper projecting surface} θ Represents the angle between the upper projecting surface and the horizontal line, and? _LED Represents the angle of light incident on the upper projecting surface from the LED light source. The method of claim 3,
Wherein the lower protruding surface is vertical with respect to the inner surface of the housing. The method of claim 3,
Wherein the upper protruding surface has a slope of at least 45 degrees with respect to an inner surface of the housing. The method of claim 3,
Wherein the protrusions have a structure in which the protruding patterns are repeatedly and seamlessly formed. The method according to claim 1,
Wherein the concave and convex portion has any one of a circular protruding structure, a circular concave structure, a sine wave structure, and a rectangular wave structure. delete The method according to claim 1,
Wherein an upper portion of the housing is bent from a lower portion of the housing such that light within a predetermined beam angle range of the LED lens is not in contact with the upper portion of the housing. The method according to claim 1,
And an outer surface of the upper portion of the housing is sanded. The method according to claim 1,
And an upper portion of the housing is formed of a colored transparent material. delete delete The method according to claim 1,
Wherein an outer surface of the LED lighting housing has a shape of a circle, a rectangle, a hexagon, or an octagon. The method according to claim 1,
And an inner surface of the LED lighting housing has a circular shape. delete The method according to claim 1,
And the upper portion of the housing has a functionally differentiable function as a function of the height of the upper portion of the housing along the circumferential direction of the housing. The method according to claim 1,
Wherein the housing top has a function shape having at least one maximum point. 21. The method of claim 20,
And an upper portion of the housing has a function shape having two maximum points facing each other. 21. The method of claim 20,
And the upper portion of the housing has a function shape having four maximum points provided at intervals of 90 degrees along the circumferential direction of the housing. An LED lighting housing according to claim 1;
An LED lens mounted on the lower portion of the housing; And
And an LED light source mounted under the LED lens. 24. The method of claim 23,
Wherein the LED illumination housing and the LED lens are integrated. 24. The method of claim 23,
And an LED cap supporting the LED lens and the LED light source.

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