KR20240028643A - gobo lighting - Google Patents

Abstract

The present invention relates to a gobo lighting device, and specifically, it is capable of effective heat dissipation using natural convection, is easy to maintain, can minimize the inflow of water into the interior even in rainy weather, and is not only highly durable, but also has a housing. This relates to an economical gobo lighting device that has an excellent internal cooling effect and prevents failure of the entire lighting device due to overheating.
The present invention relates to a light source 120 that emits light, a gobo 150 on which an arbitrary pattern or character is formed on a plate through which light from the light source 120 is transmitted, and a focal length of the light transmitted from the gobo 150. A gobo lighting device including at least one lens for adjusting, which surrounds a light source 120 and is formed to be elongated along the direction of travel of light emitted from the light source 120, and has an intake port 130 through which external air flows in at the bottom. A housing 110 formed in the upper portion and having an outlet through which internal heat is released along with the introduced external air; A light blocking plate 220 installed at a certain distance from the upper part of the housing 110 and covering a portion of the upper surface of the housing including the outlet 140; And an order guide 210 consisting of at least one cylindrical guide member 211 formed around the outlet while drawing a concentric circle around the center of the outlet 140 at the upper part of the housing 110.

Description

Gobo lighting device {gobo lighting}

The present invention relates to a gobo lighting device, and specifically, it is capable of effective heat dissipation using natural convection, is easy to maintain, can minimize the inflow of water into the interior even in rainy weather, and is not only highly durable, but also has a housing. This relates to an economical gobo lighting device that has an excellent internal cooling effect and prevents failure of the entire lighting device due to overheating.

In general, a gobo refers to an opaque screen that is placed in front of a lamp or camera while mounted on an arm with an adjustable stand and blocks light from a specific area to prevent unintentional projection of light.

Recently, as special effects have become more frequent in various performances and broadcast programs, gobos in the form of metal plates with image patterns such as various patterns or letters have been used as lighting for various special effects such as moving lights, spotlights, or ellipsoid lights. It is designed to be detachably mounted on a device (Effect Light) and is widely applied as an auxiliary device for lighting devices.

As mentioned above, when the gobo is mounted on a lighting device and illuminated, the pattern formed on the metal plate is imaged and expressed on the horizont, the space that serves as the sky in the background of the stage, on the stage floor, and on the set, thereby creating an image of the performance and performance. It has the effect of making a broadcast program look fantastic.

Accordingly, gobos have become indispensable when producing performances and broadcast programs, and as the uses of gobos have become more diverse, gobos are installed in external lighting equipment that illuminates buildings, etc. to make buildings look beautiful. It is used to beautifully decorate walls by attaching gobos to indoor lighting.

In addition, as various types of image patterns can be formed on the gobo, it can be mounted on a lighting device to project images for the promotion of a company or product at night on the floor of a road or the wall of a building, thereby further enhancing the advertising effect. It is being applied.

This gobo lighting device projects LED light onto the image glass to use the principle of light transmitting through concave and convex lenses, and illuminates the building walls, floors, ceilings, etc. to inform the message being conveyed. This type of gobo lighting device is a device that displays light on the surface of a screen, etc., and is configured so that the user can obtain lighting of the desired content by connecting the power to the fixture that generates light and passing the light through the image filter for the preset desired content. will be.

Since the above-mentioned gobo lighting devices are often installed outdoors, they are usually completely sealed for dustproofing and waterproofing, and are equipped with a heat sink made of metal (e.g., aluminum or copper) with excellent thermal conductivity and good processability. It is configured to emit heat generated from the LED module to the outside.

However, even if the heat generated inside the lighting device is discharged to the outside by the heat sink, there are bound to be limits to heat dissipation using the heat sink when a high-intensity light source is used or when the heat generation amount is high. In addition, since there is no separate ventilation means inside the housing, there is a problem that the board and various elements are damaged by heat due to overheating when operated for a long time, shortening the lifespan of the device.

Republic of Korea registered patent 10-2218927

The present invention was invented to solve the above problems, and its purpose is to provide effective heat dissipation using natural convection, easy maintenance, and excellent durability by minimizing the inflow of water into the interior even in rainy weather. In addition, the purpose is to provide a gobo lighting device with excellent economic efficiency by preventing failure of the entire lighting device due to overheating due to the excellent cooling effect inside the housing.

The present invention for achieving the above technical problem is a light source 120 that emits light, a gobo 150 in which an arbitrary pattern or character is formed on a plate through which light from the light source 120 is transmitted, and the gobo ( In the high auxiliary lighting device including at least one lens that adjusts the focal length of the light transmitted from 150), the light source 120 is formed to surround the light source 120 and is elongated according to the direction of travel of the light emitted from the light source 120. , a housing 110 in which an intake port 130 through which outside air flows is formed at the bottom, and an outlet through which internal heat is released along with the introduced outside air is formed at the top; A light blocking plate 220 installed at a certain distance from the upper part of the housing 110 and covering a portion of the upper surface of the housing including the outlet 140; And an order guide 210 consisting of at least one cylindrical guide member 211 formed around the outlet while drawing a concentric circle around the center of the outlet 140 at the top of the housing 110, The guide member 211 gradually curves outward toward the upper end to form a gently curved shape, and has different heights so that the height gradually increases as it moves away from the outlet.

In one embodiment, a magnetically detachable mesh plate 170 is coupled to the intake port 130 and the outlet port 140.

In one embodiment, the housing 110 includes a sensor unit 191 that measures the temperature inside the housing 110; An exhaust fan 180 provided below the outlet 140 to forcibly exhaust the air inside the housing 110; and a control unit 190 that drives the exhaust fan 180 according to the temperature measured by the sensor unit.

In one embodiment, the light blocking plate 220 is formed with the same curvature as that of the housing 110, and the length of the arc is formed within 50% of the housing 110, where the order guide 210 is located. It is formed horizontally with the upper end of the order guide 210 in the longitudinal direction, and both ends are formed to be curved upward at a certain curvature.

According to the gobo lighting device of the present invention, since the outlet and the intake port formed in the housing are arranged diagonally to each other, the temperature inside the housing is properly maintained by natural convection, thereby preventing overheating of the lighting device main body.

In addition, since a water guide consisting of a plurality of guide members is installed on the outside of the outlet, not only does it block the inflow of rainwater, but it can also smoothly discharge the discharged warmth, which has the effect of maintaining the temperature inside the housing appropriately.

In addition, when the temperature inside the housing is overheated, it detects this and operates the exhaust fan, thereby preventing the housing from overheating and being damaged in advance, thereby lengthening the life of the lighting device, which is economically effective.

Figure 1 is a diagram showing the gobo lighting device of the present invention installed.
Figure 2 is a cross-sectional view showing the interior of the gobo lighting device of the present invention.
Figure 3 is a perspective view of an order guide coupled to the exhaust port inlet of Figure 2.
Figure 4 is a cross-sectional view of Figure 3.
Figure 5 is a diagram showing the structure of the support plate and substrate in the gobo lighting device of the present invention.
Figure 6 is a diagram showing the shape of a light blocking plate in the gobo lighting device of the present invention.
Figure 7 is a diagram showing the structure of a mesh network coupled to an exhaust port and an intake port in the gobo lighting device of the present invention.

Hereinafter, a detailed description of preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that like elements in the drawings are represented by like symbols wherever possible. In the following description, specific details appear and are provided to aid in a more general understanding of the invention. Also, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this specification are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or precedent of a technician working in the technical field to which the present invention belongs, the emergence of new technology, etc. there is. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the relevant description of the present invention. Therefore, the terms used in this specification should be defined based on the meaning of the term and the overall content of this specification, rather than simply the name of the term.

Terms such as first or second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component, for example, without departing from the scope of rights according to the concept of the present invention, a first component may be named a second component and similarly a second component A component may also be named a first component.

When a component is said to be “connected” or “connected” to another component, it is understood that it may be directly connected to or connected to that other component, but that other components may also exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between. Other expressions that describe the relationship between components, such as "between" and "immediately between" or "neighboring" and "directly adjacent to" should be interpreted similarly.

The terms used in this specification are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in this specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with the meanings they have in the context of the related technology, and unless clearly defined in this specification, should not be interpreted in an idealized or overly formal sense. No.

Hereinafter, the gobo lighting device of the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the attached drawings.

Figure 1 is a view showing the gobo lighting device of the present invention installed, Figure 2 is a cross-sectional view showing the inside of the gobo lighting device of the present invention, Figure 3 is a perspective view of the water guide coupled to the exhaust port inlet of Figure 2, 4 is a cross-sectional view of Figure 3, Figure 5 is a diagram showing the structure of the support plate and substrate in the gobo lighting device of the present invention, Figure 6 is a diagram showing the shape of the light shielding plate in the structure of the gobo lighting device of the present invention, and Figure 7 is a diagram showing the structure of the mesh network coupled to the exhaust port and intake port of the gobo lighting device of the present invention.

Referring to FIGS. 1 to 7, the gobo lighting device of the present invention is provided with a housing 110 having a receiving space therein, and the housing 110 may be formed in a cylindrical or barrel-shaped shape. Additionally, the inner surface may be formed as a reflective surface to reflect light from the light source 120, which will be described later. The housing 110 is made of metal such as aluminum (Al), stainless steel, iron (Fe), and copper (Cu), and is made of various other materials that form the housing of a known lighting device. It can be.

Meanwhile, the light source 120 is coupled to one inner end of the housing 110. The light source 120 is mounted on a substrate 121, and a separate support plate 122 is provided between the substrate 121 and the housing 110, so that the substrate 121 is coupled to the support plate 122, and the support plate 122 ) and the inner surface of the housing 110 are configured to contact each other. An opening is formed at the top of the support plate 122 in the area where the exhaust fan 180 will be installed, and a through hole 123 is formed at the bottom to allow air to flow.

In addition, a viewing window 111 is provided at the other inner end of the housing 110 to prevent foreign substances, insects, etc. from entering the housing 110 and at the same time prevent damage to the second lens module 162, which will be described later. will do.

Meanwhile, a gobo 150 is installed in the front part of the light source 120 described above. The gobo 150 is configured to be spaced a predetermined distance away from the light source 120 and disposed on the front side of the direction of travel of the light emitted from the light source 110, and is configured to be detachable from the inner surface of the housing 110. Since the gobo 150 has random patterns or characters formed on a light-transmitting plate, it must be configured to be removable for various notice and promotional effects so that it can be used for various purposes. Such a gobo 150 may, for example, be formed so that the area where the letters are formed is transparent to transmit light and the other areas are formed to be opaque to block light, or, conversely, the area where the letters are formed are formed to be opaque. It blocks light, and other areas may be transparent and allow light to pass through. Such a gobo 150 may be made of a metal such as aluminum (Al), stainless steel, iron (Fe), or copper (Cu), or may be formed of a material such as synthetic resin (plastic) or rubber. It may be possible.

Meanwhile, the first lens module 161 and the second lens module 162 are coupled on both sides with the gobo 150 in between. The first lens module 161 may be made up of a plurality of lenses, and may be made up of a lens group so that the light output from the light source 120 is evenly projected onto the gobo 150 and refracted. In addition, the second lens module 162 may also be composed of a plurality of lenses, and may be composed of a lens group that refracts light so that an image is formed at a preset distance by light passing through the gobo 150. there is.

The arrangement and arrangement of each of the lens modules 161 and 162 and the selection of lens type can be appropriately selected and used depending on the type of pattern and character irradiated through the gobo 150 and the degree of refraction, so a detailed description thereof is provided. Decided to omit it.

Meanwhile, an outlet 140 is formed at a portion where the support plate 122 is coupled. It is desirable for the outlet 140 to have the support plate 122 disposed at the center of the outlet 140. This is because the light source is installed at a certain distance from the housing 110, so when the light source 120 emits light, the heat generated behind the light source 120 cannot escape to the outside air. Therefore, for smooth cooling of the inside of the housing 110, it is desirable to position the support plate 122 at the center of the outlet 140.

Meanwhile, a mesh plate 170 is coupled to the outlet 140. Magnets 171 are provided at the edges of the mesh plate 170 to facilitate attachment and detachment from the housing 110. This is to minimize foreign substances flowing in from the outside and to easily remove the mesh plate 170, clean it, and reattach it even if foreign substances are caught in the mesh plate 170.

Meanwhile, an exhaust fan 180 is installed below the outlet 140 and in the upper area of the support plate 122. When the temperature inside the housing 110 rises above a preset temperature, the exhaust fan 180 operates to discharge the internal heat to the outside air. For this purpose, a sensor unit 191 for measuring temperature is installed inside the housing 110, and a control unit 190 that senses the temperature of the sensor unit 191 and operates the exhaust fan 180 is provided. Therefore, when the temperature inside the housing 110 rises above the temperature set through the sensor unit 191, the sensor unit 191 transmits such an overtemperature signal to the control unit 190, and the control unit 190 that receives this signal ) operates the exhaust fan 180 to discharge hot air inside the housing 110 to the outside air. That is, the inside of the housing 110 is cooled through natural convection, and when the temperature inside the housing 110 rises above the preset temperature, the exhaust fan 180 is activated to promote a decrease in the temperature inside the housing 110. do.

Meanwhile, a light blocking plate 220 is installed at a certain distance from the upper part of the housing 110 and covers a portion of the upper surface of the housing including the outlet 140. The light blocking plate 220 serves to prevent overheating due to sunlight. In addition, the light blocking plate 220 is formed with the same curvature as that of the housing 110, the length of the arc is formed within 50% of the housing 110, and both ends are formed to be curved upward at a certain curvature. Preferably, the ideal length is about π/4 with respect to the entire arc length of the housing 110. For example, if it is above π/4, the warmth discharged from the outlet 140 is not discharged smoothly to the outside air, so the cooling effect of the housing 110 is reduced, and if it is below π/4, the inside of the outlet 140 This is because rainwater, etc. can easily penetrate into the device and the device main body 100 may break down. In addition, the end of the light blocking plate 220 forms a curved edge 221, which facilitates the inflow of air by wind, thereby increasing the cooling effect by natural convection.

Meanwhile, an order guide 210 composed of at least one cylindrical guide member 211 formed around the outlet while drawing a concentric circle around the center of the outlet 140 is coupled to the upper surface of the outlet 140. The guide member 211 gradually curves outward toward the upper end to form a gently curved shape, and is formed at different heights so that the height increases as the distance from the outlet increases. Looking specifically, the order guide 210 is composed of a plurality of guide members 211 along the outer periphery of the outlet 140, and each guide member 211 is gently rounded in the direction opposite to the center of the outlet 140. It has a cylindrical structure inclined in a curved manner. In addition, the guide member 211 serves to effectively block the inflow of rainwater by forming an incline in a direction away from the center of the outlet 140. As shown in FIG. 4, the guide members 211 are positioned on the same circular arc (see the dotted chain line in FIG. 4) when the upper ends of each guide member 211 are connected with a line. In this structure, the height of each guide member 211 increases as it goes outward from the center of the outlet 140, and the width between the light blocking plate and the water guide becomes narrower toward the outside, so in this structure, Bernoulli's principle (Bernoulli's principle) principle), the flow of discharged air gradually becomes faster, causing a pressure difference, thereby making it easier to discharge internal air through natural convection, thereby maximizing the heat dissipation effect (see dotted arrow in Figure 2).

In addition, since the ends of the plurality of guide members 211 form a gently curved portion on the outside, the internal air can be easily discharged along the curved section due to the Coanda effect, thereby improving the heat dissipation effect. do.

Meanwhile, it is preferable that the entire longitudinal section of the light blocking plate 220 where the order guide 210 is located is formed horizontally with the upper end of the order guide 210. Only then, according to Bernoulli's principle, will the flow of discharged air become faster and cause a pressure difference, making it easier to discharge internal air through natural convection and thereby maximizing the heat dissipation effect.

Meanwhile, an intake port 130 is formed in the lower portion diagonally from the outlet 140. A mesh plate 170 is installed in the intake port 130 as well as the outlet 140. Magnets 171 are provided at the edges of the mesh plate 170 to facilitate attachment and detachment from the housing 110. This is to minimize foreign substances flowing in from the outside and to easily remove the mesh plate 170, clean it, and reattach it even if foreign substances are caught in the mesh plate 170. Additionally, a first airflow guide 131 is installed on the outer periphery (inner surface of the housing) of the intake port 130. The first air flow guide 131 is formed to be bent in the direction of the outlet 140. Meanwhile, a second air flow guide 132 is installed on the opposite side of the first air flow guide 131, but is smaller than the size of the first air flow guide 131. It is formed to bend in the same direction as the direction of . Both of the above-mentioned first and second air flow guide parts 131 and 132 are formed to be curved toward the outlet 140 and are formed in a substantially curved cylindrical shape. In addition, since the second air flow guide 132 is bent toward the outlet 140, the Coanda effect promotes the flow of intake air to the left and downward. Therefore, the outside air flows into the intake port 130, absorbs the temperature inside the housing 110, passes through the through hole 123, and is discharged to the outlet 140, so that the temperature inside the housing 110 is lowered by natural convection. It is for this purpose.

As shown in FIG. 1, the gobo lighting device of the present invention described above is mainly fixedly installed on the ceiling or wall, and the supports 230 coupled to the outside of the housing 110 are hinged together to emit light at an angle desired by the user. It will be possible to investigate.

In this way, the gobo lighting device of the present invention is capable of effective heat dissipation using natural convection, is easy to maintain, and is not only excellent in durability as it can minimize the inflow of water inside even in rainy weather, but also has an excellent cooling effect inside the housing. It has the advantage of being economical as it prevents failure of the entire lighting device due to overheating and has a long product lifespan.

The embodiments of the gobo lighting device of the present invention described above are merely illustrative, and those skilled in the art can easily change the gobo lighting device to another specific form without changing the technical idea or essential features of the present invention. You will understand that transformation is possible. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. something to do.

100: device body 110: housing
111: viewing window 120: light source
121: substrate 122: support plate
123: through hole 130: intake port
131: first air flow guide 132: second air flow guide
140: outlet 150: gobo
161: first lens module 162: second lens module
170: mesh plate 171: magnet
180: exhaust fan 190: control unit
191: sensor unit 210: order guide
211: guide member 220: light shielding plate
221: curved edge 230: support

Claims (3)

A light source 120 that emits light, a gobo 150 on which an arbitrary pattern or character is formed on a plate through which light from the light source 120 is transmitted, and the focal distance of the light transmitted from the gobo 150 is adjusted. In the gobo lighting device including at least one lens,
Surrounding the light source 120, it is formed to be long according to the direction of travel of the light emitted from the light source 120, and an intake port 130 through which external air flows is formed at the bottom, and internal heat is generated along with the introduced external air. A housing 110 in which a discharge outlet 140 is formed at the top;
A light blocking plate 220 installed at a certain distance from the upper part of the housing 110 and covering a portion of the upper surface of the housing including the outlet 140; and
An order guide 210 consisting of at least one cylindrical guide member 211 formed around the outlet while drawing a concentric circle around the center of the outlet 140 at the top of the housing 110,
The guide member 211 gradually curves outward toward the upper end to form a gently curved shape, and each guide member 211 has different heights, and the height gradually increases as the distance from the outlet increases. lighting device. According to claim 1,
A gobo lighting device, characterized in that a magnetically removable mesh plate 170 is coupled to the intake port 130 and the outlet 140. According to claim 1,
The housing 110 is,
A sensor unit 191 that measures the internal temperature;
An exhaust fan 180 provided below the outlet 140 to forcibly exhaust the air inside the housing 110; and
A gobo lighting device including a control unit 190 that drives the exhaust fan 180 according to the temperature measured by the sensor unit.

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