ES2566791T3 - Sector Light - Google Patents

Abstract

Sector light, comprising: a light source unit (100), the light source unit (100) comprising light source parts (301, 302, 303) one above the other and presented different colors , which form layers one above the other, for each color of at least one light source part, in which a light source part comprises a light source (101, 102, 103) and means for refract the light, the light being refracted by means of said means so that it is omnidirectional mainly in the horizontal direction, a cover wall unit (110), which comprises a light-impermeable cover wall (116), in the that openings for light (111, 112, 113, 114) are provided, from which the light is visible in the desired direction from each layer of the light source unit such that the desired sector or sectors of horizontal light remain in each layer of the light source unit, in which the wall unit of cover (110) can be fixed in its mounting base (130), characterized in that a transparent cover (320) is fitted around the light source unit (100), the light source unit (100), presenting the surrounding transparent cover (320), it forms an integral and sealed structure such that the light source unit can be detachably fixed, with fixing means, inside the capping wall unit (110) such that the layers of the light source unit (100) and the corresponding light openings of the capping wall unit are facing each other, and in which the light source unit (100) and The cover wall unit (110) are essentially separate parts in which case the light source unit (100) can be replaced and / or removed from the inside of the cover wall unit (110) without the need to separate the unit cover wall (110) of its mounting base (130).

Description

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DESCRIPTION

Sector light

Field of the Invention

The object of the present invention is a sector light that will be used in maritime traffic guidance. Background of the invention

Today's sector lights based on incandescent light sources, such as incandescent lamps and other corresponding light sources, are still used in maritime traffic guidance. A problem with sector lights based on incandescent light sources, such as in incandescent lamps and other corresponding light sources, in addition to a high demand for power and comparatively short life, is generally the mechanical arrangements of the sector plates, whose arrangements generally cannot be included in the actual lighting device if precision is required, but instead must be arranged outside the lighting device, in which case, in practice, all the light is installed inside a light housing. The installation and adjustment of sector glass is a mechanical precision work. Also the construction and maintenance of a light housing are expensive.

For a sector light to be effective and reliable, the area of uncertainty must also be as small as possible, in which case the boundary between the sectors at different distances from the sector light is also accurate when viewed from longer distances. and therefore the determination of the position, etc., when sector lights are used, is safe and reliable.

In addition, one of the worst shortcomings of sector lights based on incandescent light sources is a reduction in the light intensity of the colored sectors. In a conventional solution, the colored light zones are formed by filtering from white light, using colored glass plates as filters. The use of filters reduces the light intensity of a red and green color normally to a level of only 25% compared to the light intensity of a white color.

When conventional solutions based on incandescent light sources are used, the fairly large size and maintenance requirements of the lights also becomes a problem, because conventional light sources require space and maintenance must also be performed, i.e. the bulbs or the like in them, must be replaced often in comparison.

The methods known in the art for using LED technology in sector lights are based on the fact that many low power LED light sources are located in a circle such that the optical axis of the LED light sources is in the direction of the horizontal plane. The LED light sources are generally arranged within a drum lens, by means of the drum lens the vertical angle of the light can be reduced. The sectors are created by arranging LED light sources of different colors on the same mount and installing intermediate plates that are impervious to light between the different colored LED zones as sector boundaries, plates that are directed in the direction of a radius that comes out from the central point of the sector light. This method also presents several limitations and problems. The LEDs of different colors must be installed, for each specific sector, on the circuit board already in the manufacturing phase, so that these types of sector lights are individual in terms of their light sources. To achieve even reasonable areas of uncertainty between different color sectors, the intermediate plates must be installed both inside and outside the drum lens of the lighting device, the outer intermediate plates with their support structures must be manufactured individually for each light of sectors. To achieve sufficient light intensity and sufficient homogeneity of the light intensity in the area of the color sector in question, the minimum angle of an individual color sector is normally greater than 20 degrees, depending on the number of LED light sources. The imprecision of a sector limit is usually in the order of 1 degree or more, additionally the luminous intensity of a color zone normally decreases when approaching the sector limit.

The sector light is also known in the art described in the application FI 20041703, sector light based on high power LEDs. In the sector light of document FI 20041703 there is one or more LED light sources for each color, the light of said light source being refracted with a lens or mirror so that it is omnidirectional in at least mainly the horizontal direction.

The sector light of document FI 20041703 is composed in the vertical direction, in which each color is in its own layer. For each layer (color), the number and width of the sectors can be freely selected in such a way that by moving sector plates, which are installed around the LED light sources and that prevent the passage of light, the width is obtained and the desired position of the sector. The number of sector boards can be freely selected. Sector plates can move, and sector plates can also be adjusted in the field.

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With the known LED sector technology, a fully completed and custom-made sector light can also be manufactured. All sectors are preset, but for sectors to be aligned in the correct directions, the sector light must be rotated until the correct address is obtained at the installation site.

After the installation of a sector light, the owner (for example a maritime navigation authority) performs a sector inspection. The inspection of sectors is carried out at night piloting a boat on the maritime route in those directions in which the colors of a sector change. Generally, the piloting starts from afar and the boat pilots towards the light of sectors obliquely in such a way that the sector boundary is crossed. When, according to the visual evaluation of the sector inspector, the color has changed, the position is recorded and the course is turned and the boat is piloted back over the sector limit. This is generally done, according to industry regulations, four times at four different distances from light. Normally it is necessary to inspect all sector limits. In a sector light there can be up to 9-10 sector limits to be inspected.

Therefore, inspecting the limits of the sector is laborious and carries a high cost. In prior art solutions, sector inspections should always be carried out if the sector light is to be separated from its fixtures, for example to repair the light sources or to replace the light sources. Furthermore, by means of prior art solutions based on LED light sources, it is not possible to use in different sector lights one, or only a few, types of light source, the storage of which would be easy, since each sector light according to the prior art it is adapted to be suitable only for its own position.

Brief Description of the Invention

The objective of the solution according to the invention is to eliminate or reduce known problems and achieve a light of sectors, for use more particularly in the guidance of maritime traffic, light source whose light of sectors can be separated, for example for repair, and fixed again without having to align the light of sectors and without having to inspect again the limits of sector.

The light of sectors of the solution according to the invention comprises a light source unit, comprising parts of light source one above the other, which form layers one above the other, for each color of at least one Light source part. A light source part comprises a light source, whose light is refracted with a lens or mirror so that it is omnidirectional in at least mainly the horizontal direction and a cover for the light source unit, cover that is installed in connection With the light source unit. The light source unit cover protects the light source unit from external stress. The sector light also comprises a capping wall unit, which comprises a capping wall that does not let light through, comprising openings for light in several layers, from which the light is visible from each layer of the source unit of light in the desired outward direction of the sector light such that the desired sector or sectors of horizontal light remain in each layer. The capping wall unit can be fixed to its mounting base and the light source unit can be detachably fixed, with fixing means, inside the capping wall unit such that the layers of the source unit of light and the light openings of the capping wall unit corresponding to the layers are facing each other. The light source unit can be replaced and / or removed from inside the cover wall unit without needing to separate the cover wall unit from its mounting base.

In an embodiment of the invention the light source, for example a high power LED light source, which can be a few watts at its output, in the sector light is placed on the horizontal plane directed straight up or down. A lens and / or optical reflector is used in connection with the light source, lens or reflector that rotates the light in the direction of the horizontal plane with the desired vertical distribution of light. The light radiates in the horizontal plane symmetrically to an area of 360 degrees and is visible through the lens or the mirror as a light in the form of a vertical and narrow line. The vertical opening angle of the light can also be affected by the lens or the reflector. The lens or reflector is either separated or integrated as part of the light source.

By means of the invention a sector light is obtained that is extremely precise in its sector limits, is simple and extremely reliable in terms of operation, and which is particularly suitable for use in maritime traffic guidance, and whose unit of Light source can be replaced without the need to inspect the sector limits after reattaching the light source unit.

By means of the solution according to the invention the same kinds of light source units can also be used in many lights of different sectors, unlike solutions based on LED light sources known in the art, light source units that are individual , because in the solution of the present invention the sectors of sectors light are determined by means of a cover wall unit fixed to its mounting base. This allows the storage of many spare light sources of a type that are suitable for a different sector light and the use thereof when it is desired to replace the light source units of a sector light. Updating light sources to a newer model or a more effective version is also easy,

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because a light source unit can be replaced by a sector light without changing or inspecting the sector areas.

The characteristic features of the apparatus according to the invention are presented in detail in the claims below.

Brief description of the figures

Next, the invention will be described in more detail by the aid of some embodiments with reference to drawings 1 to 4, in which

Figure 1 shows a cross section of an exemplary embodiment of a light of

sectors according to the invention;

Figure 2 shows a cross section of an exemplary embodiment of a light of

sectors according to the invention, light source unit that is separating from the capping wall unit;

Figure 3 shows a side view of a light source unit of a sector light according to the invention;

Figure 4 shows a cover wall unit of a sector light according to the invention.

Detailed description of the invention

According to FIG. 1, the sector light comprises a light source unit 100 and a cover wall unit 110. In the structure formed by the light source unit 100 and the cover wall unit 110 is located minus one layer for each color, and in each layer of the light source unit there is one or more vertical irradiation light sources 101, 102, 103. The light source 101, 102, 103 is an LED light source and for example a high power LED with at least 1 W output. The light from the light source 101, 102, 103 is refracted with a lens 104, 105, 106 to be omnidirectional in at least mainly the horizontal direction. The functionality of the sector light according to the invention is therefore based on the shape of the visible light through the lens or through the reflector. As seen through the lens, the light source receives a vertical and narrow shape. The narrower the light source, the more precise the limit of the sector will be. The light source unit 100 comprises a level 107, 108, 109 between the different layers and / or below them that the light does not let in.

In the cover wall unit 110 of the sector light, at each height corresponding to a layer of the light source unit, there is at least one opening for light that allows the light to pass through, through which it allows a part of the horizontal light to pass in such a way that the desired sector or sectors remain, ie the openings for light from which the light is visible from each layer of the light source unit in the desired direction. The position and number of the light openings in the sector light cover wall unit determine where the light sources of each layer are visible. The position and the number of openings for light can be selected for example in the manufacture of the cover wall. The cover wall unit comprises a fixing part, for example a fixing base 120, with the help of which the cover wall unit, and at the same time all the sector light, can be fixed with fixing means to mounting base 130.

The light source part of the sector light according to Figure 1 has three different layers, at heights corresponding to those in which the opening in the cover wall is a light opening 111, 112, from which the light of the light is visible. light source 101, 102, 103 of the layer in question outside the sector light. The light opening of the capping wall unit that is at the height of the lowermost layer is not present in Figure 1. Different colors are visible from the light openings 111, 112 that are at different heights, by an example such that the white light is visible from the opening for more upper light 112, the green light from the opening for light 111 below the white one, and the red light from the opening for lower light (which is not present in Figure 1). However, the colors may also be different from green, red and white. The light openings 111, 112 are conventionally arranged such that they are precisely staggered, but they can also be arranged such that there is a certain distance between the openings 111, 112. There may also be more than one opening 111, 112 For each layer.

The light source unit 100 can be installed and fixed in the center of the cover wall unit 110 such that the layers of the light source unit and the light openings of the cover wall unit meet a in front of another. The fixing of the light source unit 100 within the capping wall unit 110 can be carried out with fixing means, such as for example with screws or with other corresponding detachable fixing means. When the light source unit is fixed to the center of the cover wall unit, the distance of the light source units of the light source unit in the horizontal direction with respect to the cover wall 116 of the wall unit Capping is normally the same around the sector light. The distance of the capping wall 116 from the light sources may also vary according to the precision requirements of the sector. Additional optical components may be used in the sector light at the point of openings

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for light 111, 112 arranged in the capping wall 116, optical components by means of which the vertical light distribution of a sector of light radiated by each light opening can be narrowed or widened as necessary.

The cover wall unit 110 of the sector light also comprises support structure parts 117, 118, on which the cover wall 116 can be fixed. The structure formed by the supporting structure parts 117, 118 and the capping wall 116 is essentially rigid. The supporting structure parts 117, 118 of the cover wall unit 110 can also function as a side support and / or a support in the vertical direction for the light source unit 100 installed inside the cover wall unit 110 .

In an embodiment of the invention, a space 119 is located in the lower part of the light source unit, in which for example the electronic components used in the control of the light sources can be arranged. The connectors for the electricity supply of the light source part can also be arranged in connection with the space 119.

Figure 2 shows how the light source unit 100 can be separated from the cover wall unit 110. Although the light source unit 100 is separated from the cover wall unit 110, it is not necessary to separate the wall unit of cover 110 of its fixing surface. When the light source unit 100 is reinstalled, it can be installed inside the capping wall unit 110 in any position around its own vertical axis, because the light sources are omnidirectional in the horizontal direction and because the cover wall unit 110 fixed to its mounting base determines the sector of light that reaches the different sectors. For this reason, when the cover wall unit 110 is fixed to its base, it is not necessary after the replacement of the light source unit 100 to carry out a measurement of the alignment of the sectors because the openings for light of the cover wall unit 110, which determine the light sectors, they are in the same position as before the replacement of the light source unit.

Figure 3 shows a light source unit 100 according to an embodiment of the invention. The light source unit is formed from three light source parts 301, 302, 303 one above the other. In the lower part of the light source parts 301, 302, 303 there is a plane 107, 108, 109 that does not let the light pass. In an embodiment of the invention, a light source having a beam of symmetrical irradiation in relation to the optical axis of a light source part 301, 302, 303 is installed in the sector light such that the The optical axis of the same is in a vertical direction, that is to say directed directly upwards or directly downwards.

In an embodiment of the invention, the plane 107, 108, 109 at the bottom of the light source parts 301, 302, 303 comprises a base plate, on which the light sources are installed, for example LED light sources, sector light. The base plate can be for example a circuit board. The circuit board may be installed in a heat sink. To achieve good thermal conductivity, aluminum or a ceramic material is often used as the circuit board material, but the use of a conventional fiberglass circuit board is also possible. Light sources can also be fixed directly to the surface of a heat sink.

On top of a light source that radiates in a vertical main direction is installed separately, or integrated into the light source, an optical lens 104, 105, 106 or a conical mirror that rotates the light in the horizontal plane. Therefore, it is characteristic that the light is visible through a lens 104, 105, 106 or mirror as light in the form of a vertical and narrow line. The width of a beam of light directed towards an observer depends on the optical components and is normally less than 2 mm. The narrower the beam of light, the better.

In the solution according to the invention, several LEDs of the same color can be added on top of each other in layers in which case the light range can be increased.

In connection with the light source unit, for example around the light source unit, a cover 320 is provided, which protects the light source unit from external stresses. The cover 320 surrounding the light source unit of the sides can be cylindrical and an essentially transparent material, for example polycarbonate, is used as the material thereof. The cover of the light source unit can form, together with the top and bottom of the light source unit, an essentially sealed space.

The amount of light radiated by each color layer can be monitored optically with the electronic components to be used in the control of the light sources and if it is detected that the light output of one color layer has decreased with respect to the other color layers, automatic monitoring systems can extinguish the light diodes of all layers or alternatively adjust the light output of the other color layers to correspond to the reduced light output of the defective color layer.

The electronic components to be used in the control of the light sources can also adjust the possible scintillation of the light sources and the light intensity of the light sources. By means of the electronic components of the light sources, the settings of a light source can also be changed by programming the

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desired settings, for example for the light intensity of light sources and for the scintillation of light sources, in the electronic components. The programming of the desired settings in the electronic components can be carried out, for example, provided that the use of the light source unit is adopted in a new sector light.

The light intensities of the color sectors do not decrease when they approach the boundaries of the sector before reaching the area of uncertainty. The amount or width of the light openings of each specific layer does not affect the energy consumption of the sector light.

In the solution presented by the invention alternatively, for example, the white sector can also be manufactured by combining the red light and the green light in the same sector, in which case with the color coordinates selected correctly the combination of the two colors is white.

In an embodiment of the invention, in the light source unit, for example, on the upper surface thereof, there may be means that facilitate the elevation of the light source unit with respect to the interior of the light unit. clogged wall The means to facilitate lifting can be for example a handle.

Figure 4 shows a cover wall unit 110 of a sector light according to the invention, a cover wall unit from whose interior the light source unit has been removed. The cover wall unit 110 comprises openings for light 112, 113, 114, from which the light is visible in the desired sectors. The location and size of the openings for light 112, 113, 114 affect the sector areas. The supporting structure parts 117, 118 of the capping wall unit are also presented in Figure 4. The capping wall unit 110 also comprises fixing and support means for the light source unit, by means of the aid of which the light source unit can be detachably attached to the capping wall unit 110. For example, acid-resistant steel can be used as the material of the capping wall unit. The cover wall unit 110 and / or the light source unit may comprise connectors, by means of which power is supplied to the light source unit. The upper part of the structure formed by the cover wall unit 110 and / or the cover wall unit 110 and the light source unit installed in its position is essentially sealed and therefore protects the light from water sectors and of snow, preventing their access from the top to the interior of the sectors light. The lower part of the cover wall unit 110 may be open, so that water and snow that may penetrate inside do not remain within the sector light. In the light openings of the cover wall unit or around the cover wall unit there may be covers, for example glass surfaces or plastic surfaces, but cover plates are not necessarily needed in the light openings particularly if it is desired to maximize the amount of light that comes out of the openings. If a protective structure is used in the light openings of the capping wall unit or around the capping wall unit, the bottom of the capping wall unit can also form, together with the source unit of light fixed to it, an essentially sealed structure with respect to the bottom of the sector light.

It is clear to the person skilled in the art that the different embodiments of the invention are not limited only to the examples described above, and that for these reasons may vary within the scope of the claims presented below. The characteristic features possibly presented in the description together with other characteristic features may be used if necessary separately from each other.

Claims (10)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 1. Sector light, which includes: a light source unit (100), the light source unit (100) comprising light source parts (301, 302, 303) one above the other and presented different colors, which form layers one above on the other, for each color of at least one light source part, in which one light source part comprises a light source (101, 102, 103) and means for refracting the light, the light being refracted by the aid of said means so that it is omnidirectional mainly in the horizontal direction, a cover wall unit (110), comprising a light impermeable cover wall (116), in which light openings (111, 112, 113, 114) are provided, from which the light is visible in the desired direction from each layer of the light source unit such that the desired sector or sectors of horizontal light remain in each layer of the light source unit, in which the capping wall unit (110) can be fixed in its mounting base (130), characterized by a transparent cover (320) is fitted around the light source unit (100), The light source unit (100), which has the surrounding transparent cover (320), forms an integral structure and sealed in such a way that the light source unit can be detachably fixed, with fixing means, inside of the cover wall unit (110) such that the layers of the light source unit (100) and the corresponding light openings of the cover wall unit face each other, and wherein the light source unit (100) and the cover wall unit (110) are essentially separate parts in which case the light source unit (100) can be replaced and / or removed from inside the unit cover wall (110) without the need to separate the cover wall unit (110) from its mounting base (130). 2. Sector light according to claim 1, wherein the light source unit (100) forms an essentially sealed structure. 3. Sector light according to any of the preceding claims, wherein the light source unit (100) comprises a level impervious to light (107, 108, 109) between the different layers. 4. Sector light according to any one of the preceding claims, wherein a light source part (301, 302, 303) comprises a base plate and a light source fitted thereon. 5. Sector light according to any one of the preceding claims, wherein the light sources (101, 102, 103) of the light source unit (100) are high power LED light sources of at least 1 W output 6. Sector light according to any of the preceding claims, wherein the upper part of the structure formed by the light source unit (100) installed inside the capping wall unit and the capping wall unit (110 ) is essentially sealed. 7. Sector light according to any of the preceding claims, wherein the end structure of the bottom of the cover wall unit (110) is open. 8. Sector light according to any one of the preceding claims, wherein the cover wall unit (110) comprises support means for the light source unit. 9. Sector light according to any of the preceding claims, wherein the means for refracting light from a light source (101, 102, 103) to be omnidirectional mainly in the horizontal direction is a lens (104, 105, 106) or a mirror. 10. Sector light according to claim 10, wherein the light is visible through a lens (104, 105, 106) or mirror as a vertical and narrow line-shaped light.