KR101177099B1 - LED stage lighting equipment - Google Patents

Abstract

PURPOSE: An LED lighting apparatus for stage is provided to improve the quality of output lights by controlling the distance of a diffusion lens from LED elements. CONSTITUTION: A head body(30) has an internal accommodation space. A substrate(40) is inserted in the accommodation space of the head body. A plurality of LED elements(41) are installed on one side of the substrate. A first lens unit(50) and a second lens unit(60) comprise a plurality of lenses diffusing the lights emitted from the LED elements. A lens driving unit(80) comprises a drive shaft and an actuator motor that provides the drive shaft with a linear driving force.

Description

LED stage lighting device {LED moving head having enhanced safety performance}

The present invention relates to an LED stage lighting apparatus, and more particularly, it is possible to easily adjust the focus of the output light, to prevent the bleeding around the light and to allow the light to shine brightly circularly on the stage as a whole light It is about LED stage lighting device to improve the output.
The present invention is derived from research conducted as part of the Gyeonggi Science and Technology Development Project of Gyeonggi Institute of Science and Technology Promotion and Kirin Precision Industries, Ltd.
[Task Management Number: D-1006, Title: LED Zoom moving Head]

Generally, stage lighting devices include metal halide lamps, mercury lamps, neon lamps, halogen lamps, etc., which can provide sufficient illumination to emphasize people or objects, or to create powerful spotlights that illuminate certain parts on the stage. Although it has been consumed because of high power consumption, energy consumption, short life, it is difficult to produce a variety of colors of light.

In order to solve these problems, recently, a stage lighting device using LEDs that consumes less power, has a semi-permanent lifespan, requires less time for lighting, produces natural light, and reduces the generation of environmentally harmful substances. In order to reduce heat dissipation, noise, and power consumption, it is widely used as a light source for stage lighting devices.

However, due to the characteristics of the stage lighting device, the lighting on the stage should be made clear and clear, but the conventional stage lighting device is difficult to control the focus of the light, so the brightness of the light that is reflected according to the position of the stage is lowered, so that the quality of light as a whole falls. There was this.

In addition, the light output LED is equipped with a lens to facilitate the light diffusion, such a lens diffuses the light so that the light can be reflected in a wide range, but the blurring phenomenon at the edge of the light is slightly blurred There was concern.

In addition, the commonly used LED elements are arranged in a lattice form. In this case, since the LED chips have a rectangular parallelepiped shape, the edges of the light shining on the stage form an angular shape rather than a circular shape, thereby degrading the overall light quality. There was this.

Republic of Korea Patent Publication 10-2010-0080649

The present invention has been made to solve the above-mentioned problems, and more particularly, to provide an LED stage lighting apparatus that can improve the overall output quality of light shining on the stage.

LED stage lighting apparatus of the present invention for achieving the above object, the head body having a receiving space therein and the front is open;

A substrate inserted into the accommodation space and having a plurality of LED elements installed on one surface thereof;

A first lens unit disposed at one side of the substrate and provided at a position corresponding to the plurality of LED elements and having a plurality of lenses to diffuse light emitted from the LED elements;

A plurality of lenses disposed at positions corresponding to the LED elements and disposed on opposite sides of the substrate with the first lens portion interposed therebetween and diffusing light emitted from the LED elements, A second lens unit capable of moving in a direction proximate to the substrate; And

And a lens driver driving the second lens unit in a direction away from or in proximity to the substrate.

In the LED stage lighting device,

The lens driving unit,

And an actuator motor fastened to the second lens unit and movable in a linear direction, and an motor body providing a driving force in a linear direction to the drive shaft.

LED stage lighting apparatus of the present invention for achieving the above object,

Head body having a receiving space therein and the front is open;

A substrate inserted into the accommodation space and having a plurality of LED elements installed on one surface thereof;

A lens unit disposed on one side of the substrate and provided at a position corresponding to the plurality of LED elements and having a plurality of lenses configured to diffuse light emitted from the LED elements; And

A through hole is formed at a position opposite to the substrate with the lens unit interposed therebetween, and through holes are formed at positions corresponding to the plurality of lenses, and emit light emitted from the LED element to the outside only through the through holes. The lens hood includes a lens hood that prevents light from being emitted to the outside, thereby preventing blurring of edges of the light emitted to the outside.

In the LED stage lighting device,

Further comprising driving means for driving the lens unit in a direction away from the substrate or in a direction close to the substrate,

The lens hood may be fixedly coupled to the lens unit and driven together with the lens unit.

In the LED stage lighting device,

The lens hood may include a hood plate having a plurality of through holes formed therein, and a cylindrical sidewall portion extending toward the lens from a circumference of each of the plurality of through holes.

LED stage lighting apparatus of the present invention for achieving the above object,

Head body having a receiving space therein and the front is open;

A substrate inserted in the accommodation space and having a plurality of LED elements having a polyhedron shape on one surface thereof; And

A lens unit disposed on one side of the substrate and provided at a position corresponding to the plurality of LED elements, the lens unit including a plurality of lenses to diffuse light emitted from the LED elements;

Among the plurality of LED elements, LED elements spaced apart from the center of the substrate by the same distance are installed on the substrate such that the tangent of the green virtual circle is located on the side of each LED element with the center of the substrate concentric. The edges of the light emitted from the LED elements may be circular.

In the LED stage lighting apparatus according to the present invention, since the lens for diffusing light emitted from the LED element can be adjusted with the LED element as necessary, the focal length can be changed accordingly and the quality of the light output as a whole is improved. It can be effective.

 In the LED stage lighting apparatus according to the present invention, since a hood having a predetermined through hole is installed around the lens to diffuse the light emitted from the LED element, light spreading can be prevented and the quality of the light output as a whole can be prevented. There is an effect that can be improved.

LED stage lighting apparatus according to the present invention, since the LED elements are arranged on the substrate to illuminate the light having a circular border has the effect that the overall quality of the light can be improved.

1 is a front perspective view of an LED stage lighting apparatus according to an embodiment of the present invention.
FIG. 2 is a rear perspective view of the LED stage lighting device of FIG. 1. FIG.
Figure 3 is an exploded perspective view of the LED stage lighting device of Figure 1;
Figure 4 is a front view of Figure 3;
5 is a cross-sectional view taken along the line VV of FIG. 4.
FIG. 6 is a VI-VI cross-sectional view of FIG. 4. FIG.
FIG. 7 is a VIII-VIII cross-sectional view of FIG. 4. FIG.
8 is an operation of FIG.
9 is a view showing the arrangement of the LED device in the LED stage lighting apparatus of FIG.
10 and 11 is a view showing a light output state using the LED stage lighting apparatus of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

LED stage lighting apparatus 10 according to an embodiment of the present invention, the head 20, the head driving unit 90 and the base 91. The head part 20 emits light generated from the LED element 41 to the outside, and the head driving part 90 supports the head part 20 while tilting the head part 20 in a predetermined direction. The base 91 supports the head drive unit 90 and the head unit 20 and fixes the LED stage lighting device 10 to the installation position. Here, since the head driver 90 and the base 91 are similar to those of the related arts, a detailed description thereof will be omitted and the head unit 20 will be described in detail.

The head part 20 includes a head body 30, a substrate 40, lens parts 50 and 60, a lens hood 70, and a lens driving part 80.

The head body 30 has an accommodation space (S) therein and the front is open so that the light emitted from the internal LED element 41 can be irradiated to the outside through the open portion of the front. . The substrate 40 may be seated in the accommodation space S that forms the front of the head body 30, and a plurality of heat sinks 31 may be disposed on the rear surface of the head body 30 opposite to the accommodation space S. do. In this case, the heat sink 31 is formed to protrude from the rear surface of the head body 30, and is made of a material having a high heat transfer coefficient and a light weight, for example, aluminum. The heat sink 31 is spaced apart from the center of the head body 30 by a predetermined distance, and is formed along the outer circumferential surface of the head body 30. The plurality of heat sinks are formed radially symmetrically with respect to the center of the head body 30. The heat sink 31 performs a function of easily dissipating heat generated from the substrate 40 to the outside.

The head main body 30 has a rear cover 32 covering the heat sink 31 and covering the heat sink 31, and a plurality of through-holes are formed in the rear cover 32 to release heat from the heat sink 31. This can be easily released to the outside.

The substrate 40 is provided with a plurality of LED elements 41 having a hexahedron shape on one surface thereof. The plurality of LED elements 41 may be LED elements 41 of red, green, and blue colors, and may optionally include a white LED element 41. A plurality of such LED elements 41 are disposed on a disc-shaped substrate 40, specifically, arranged in a substantially lattice form. However, in the present embodiment, the LED elements 41 have a plurality of LED elements 41 spaced apart from each other by the same distance from the center of the substrate 40. In this case, the LED elements 41 are spaced apart by the same distance from the center of the substrate 40. LED elements 41 are arranged on the substrate 40 such that the edge edges of the emitted light can be circular. Specifically, it is provided on the substrate 40 so that the tangent of the green virtual circle C is located with the center of the substrate 40 in the side of the LED elements 41 located at the same distance. That is, the side surfaces of the LED elements 41 are disposed on the substrate 40 such that the side surfaces of the LED elements 41 are in a tangential direction of the virtual circle C. The light emitted from the LED elements 41 arranged as described above may have a circular shape to improve the quality of the output light.

The lens units 50 and 60 may include a first lens unit 50 and a second lens unit 60. The first lens unit 50 is composed of a plurality of lenses (50a) that can diffuse the light emitted from the LED element 41, each lens 50a corresponding to each LED element 41 Installed in position and configured to surround each of the LED elements 41. Each of the lens 50a parts is fixed to the substrate 40 so that the lens 50a can be fixed at a predetermined position.

The second lens unit 60 is disposed at a position corresponding to the LED elements 41, and is disposed opposite to the substrate 40 with the first lens unit 50 therebetween, and the LED element 41. A plurality of lenses 60a for diffusing light emitted from the < RTI ID = 0.0 > The second lens unit 60 may be moved in a direction away from or in proximity to the substrate 40. When the position of the second lens unit 60 is moved as described above, the quality of light can be improved by changing the degree of diffusion of light and the focal length.

On the other hand, the second lens unit 60 is provided with an insertion portion 61 into which the drive shaft 81 of the lens driving unit 80, which will be described later, is fastened to the driving shaft 81 to the insertion portion 61. According to the linear movement of the drive shaft 81, the second lens unit 60 may move in conjunction with each other. The second lens unit 60 is provided with a metal support plate 62 capable of supporting the second lens unit 60.

The lens hood 70 is disposed on the opposite side of the substrate 40 with the lens portions 50 and 60 interposed therebetween, and a through hole 71a is formed at each of the corresponding positions. The lens hood 70 may be configured to have a black color to block the light emitted to the outside, but in a substantially disk form. However, the present invention is not limited thereto, and various colors are possible as long as it can block light, and of course, light can be blocked by using a special material. The lens hood 70 emits light emitted from the LED element 41 to the outside only through the through hole 71a, and suppresses the light emitted to the outside in portions other than the through hole 71a, thereby emitting to the outside. This can prevent the edges of light from blurring.

On the other hand, the lens hood 70 is formed in a substantially disk shape, the hood plate 71 in which a plurality of through-holes 71a are formed, and from the circumference of each of the plurality of through-holes 71a toward the lens. An extended cylindrical side wall portion 72 is included. The side wall portion 72 covers the periphery of the lens to help the light emitted from the lens to be concentrated in the through hole 71a. On the other hand, the lens hood 70 is provided with a fixed coupling portion 73 that can be fixed to the metal support plate 62 disposed on the rear side of the second lens portion 60, the fixed coupling portion 73 As the screw member 74 inserted through is coupled with the metal support plate 62, the lens hood 70 may be driven together with the second lens unit 60 and the metal support plate 62. .

The lens driving unit 80 is coupled to the second lens unit 60 to drive the second lens unit 60 in a direction away from the substrate 40 or in a direction approaching the substrate 40. The lens driving unit 80 includes a driving shaft 81 fastened to the second lens unit 60 and movable in a linear direction, and a motor body 82 providing a driving force in a linear direction to the driving shaft 81. . The motor used in the present embodiment uses an actuator motor. The actuator motor can move the drive shaft 81 directly and linearly without a rotation method, so that the accuracy according to the lens movement can be reliably improved. In the lens driving unit 80, only the driving shaft 81 is protruded and fastened to the second lens unit 60 while the motor main body 82 is coupled to the head body 30.

On the other hand, reference numerals 21 and 22 refer to the lens cover and the fixing member, respectively. The lens cover is coupled to the front surface of the fixing member 22. The lens cover 21 is coupled to the fixing member 22 by the fastening means 221.

The fixing member 22 has a ring shape and is coupled to an outer circumference of the head body 30 from the front of the head body 30, and mounted on the inside of the head body 30. 40) and the lens unit (50, 60) to be located in the head body (30).

The LED stage lighting apparatus 10 according to this embodiment operates as follows.

First, in order to change the focus of light or to adjust the degree of diffusion, the second lens unit 60 may be moved away from or close to the substrate 40. If the second lens unit 60 is moved away from the substrate 40, as shown in FIG. 8, the drive shaft 81 may protrude by applying a predetermined electrical signal to the motor body 82. do. When the driving shaft 81 protrudes as described above, the second lens unit 60 coupled to the driving shaft 81 moves in a direction away from the substrate 40. Meanwhile, the lens hood 70 configured to move in conjunction with the second lens unit 60 also moves together. When the second lens unit 60 moves as described above, as the distance from the LED element 41 increases, the desired focus of light can be obtained.

On the other hand, since the emitted light passes through the through hole 71a of the lens hood 70, more clear light can be obtained. For example, since the blurry portion at the edge is being irradiated in a state where it is already removed and removed by the lens hood 70, the light shining on the stage has the effect of having a clear edge.

In addition, since the LED elements 41 are arranged on the substrate 40 as shown in FIG. 9, the light emitted from the LED elements 41 located at the same distance from the center of the substrate 40 as shown in FIG. The border can be formed in the form of a circle. Although FIG. 10 illustrates that white light is irradiated, as shown in FIG. 11, even when light of various colors is overlapped and irradiated, the edge of the irradiated light may have a circular shape. .

In the following description of the present invention, the embodiments illustrated in the drawings have been described with reference to the embodiments, which are merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. I will understand the point. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10 ... LED stage lighting unit 20 ... Head section
30.Head body 40.Board
41 LED element 50 first lens unit
51.lens fixing plate 60 ... second lens unit
61 Insert 62 Metal plate
70 ... lens hood 71 ... hood plate
71a ... through hole 72 ... side wall
80 Lens drive 81 Drive shaft
82 ... motor body 90 ... head drive
91 ... Bass

Claims (6)

Head body having a receiving space therein and the front is open;
A substrate inserted into the accommodation space and having a plurality of LED elements installed on one surface thereof;
A first lens unit disposed at one side of the substrate and provided at a position corresponding to the plurality of LED elements and having a plurality of lenses to diffuse light emitted from the LED elements;
A plurality of lenses disposed at positions corresponding to the LED elements and disposed on opposite sides of the substrate with the first lens portion interposed therebetween and diffusing light emitted from the LED elements, A second lens unit capable of moving in a direction proximate to the substrate; And
And a lens driver driving the second lens unit in a direction away from or in proximity to the substrate. The method of claim 1,
The lens driving unit,
And an actuator motor fastened to the second lens unit and movable in a linear direction, and an actuator motor providing a driving force in a linear direction to the drive shaft. delete delete delete delete

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