Lighting reflector and safety light equipped therewith

Abstract

The present invention relates to a lighting reflector and a safety light equipped with the same, wherein the lighting reflector comprises: a case having an internal space formed therein and open on both sides; and a plate-shaped reflector having a specific curvature that reflects light from an LED light provided on one open side of the case and detachably disposed in the internal space, and is characterized by controlling the light distribution of the LED light through the replacement of the reflector plate.

Description

Technology Field

[0001] The present invention relates to lighting reflector technology, and more specifically, to a lighting reflector capable of efficiently improving illuminance by controlling light distribution according to the installation environment of the lighting, and a safety light equipped with the same. Background Technology

[0003] Crosswalks, which safeguard pedestrian safety, are places that require caution from both pedestrians and safety makers, as traffic accidents can endanger not only injuries but also lives. However, traffic accidents at crosswalks continue to occur every year. Consequently, the government is amending the Road Traffic Act to expand the duty of protection for drivers regarding pedestrians crossing crosswalks.

[0004] Recently, technology is being developed in which road traffic infrastructure directly protects pedestrians to ensure pedestrian safety.

[0005] A representative example of traffic safety facilities for pedestrians is crosswalk safety lights. These lights are devices designed to improve visibility for pedestrians and drivers at night, thereby preventing traffic accidents and promoting safe driving. However, the reality is that crosswalk safety lights currently being installed utilize light sources to intensively illuminate the crosswalk, and are being manufactured and installed without any standards regarding their placement.

[0006] If manufactured and installed without considering the installation location, it can cause glare to drivers and pedestrians, leading to traffic accidents as they momentarily fail to recognize vehicles or pedestrians due to the glare, and can also cause light pollution in surrounding areas outside of crosswalks due to unnecessary light.

[0007] Therefore, a crosswalk safety light device is required that minimizes glare for drivers and pedestrians depending on the installation location while enabling drivers to easily recognize pedestrians. Prior art literature

[0009] Korean Registered Patent No. 10-1323154 (2013.10.23) Korean Registered Patent No. 10-1307372 (2013.09.05) The problem to be solved

[0010] One embodiment of the present invention aims to provide a lighting reflector capable of efficiently improving illuminance by controlling light distribution according to the installation environment of the lighting, and a safety light equipped with the same.

[0011] One embodiment of the present invention aims to provide a lighting reflector and a safety light equipped with the same, which can minimize glare and uniformly disperse light by controlling the excessive directional nature of light generated from an LED (Light Emitting Diode) light according to installation environment conditions by replacing a reflector designed to allow light to pass only at a specific angle according to installation environment conditions.

[0012] One embodiment of the present invention aims to provide a lighting reflector that prevents glare by ensuring that the LED light is not directly visible from the front, and a safety light equipped with the same. means of solving the problem

[0014] Among the embodiments, the lighting reflector comprises a case having an internal space formed and both sides open; and a plate-shaped reflector having a specific curvature that reflects light from an LED light, which is detachably disposed in the internal space and provided on one open side of the case, and the light distribution of the LED light can be controlled by replacing the reflector.

[0015] The above case can be formed as a tetrahedron in which the volume of the internal space gradually increases toward the front, with the direction in which the LED light is positioned being the rear.

[0016] The above case includes a guide groove formed along both inner sides and slidingly guiding the attachment and detachment of the reflector, and the reflector may include guide bars formed on both sides so as to be fitted into the guide groove and installed inside the case in a sliding manner.

[0017] The above case includes a hook protrusion formed at the end of the guide groove on both sides of the front and for fixing or releasing the reflector disposed in the internal space, and the reflector may include a groove-shaped hook insertion part formed at the end of the guide bar and into which the hook protrusion is inserted and fixedly fastened during the process of installation in the internal space.

[0018] The above reflector is designed in shape and angle by considering at least one of average road surface roughness, overall roughness uniformity and lane axis roughness uniformity, and can be replaced and installed in the case by selecting from a plurality of reflectors designed with different shapes and angles depending on the installation environment conditions.

[0019] The above reflector can block direct exposure of the LED light based on the front to prevent glare.

[0020] Among the embodiments, a safety light equipped with a lighting reflector comprises: a housing having one side open toward the ground; at least one LED light provided on the open side of the housing and emitting light; a lighting reflector provided in front of each of the at least one LED light and including a replaceable reflector, which controls the light distribution of the LED light through a reflector having a specific shape and angle selected according to installation environment conditions; a front cover covering the open side of the housing; and an angle adjustment part having a bracket structure that is axially connected to the center of both side portions of the housing and rotates the housing around the axis to adjust the irradiation angle of the LED light.

[0021] The above safety light can increase the bonding strength between the housing and the front cover by attaching the front cover to the housing using a taping method in which foam tape is attached along the edge forming the front opening of the housing, and by injecting silicone through a silicone injection hole formed on the side of the housing. Effects of the invention

[0023] The disclosed technology may have the following effects. However, this does not mean that a specific embodiment must include all of the following effects or only the following effects; therefore, the scope of the rights of the disclosed technology should not be understood as being limited by this.

[0024] A lighting reflector and a safety light equipped with the same according to one embodiment of the present invention can efficiently improve illumination by controlling light distribution according to the installation environment of the lighting.

[0025] A lighting reflector and a safety light equipped with the same according to one embodiment of the present invention can minimize glare and uniformly disperse light by controlling the excessive directional nature of light generated from an LED (Light Emitting Diode) light according to installation environment conditions by replacing a reflector designed to allow light to pass only at a specific angle according to installation environment conditions.

[0026] A lighting reflector according to one embodiment of the present invention and a safety light equipped with the same can prevent glare by ensuring that the LED lighting is not directly visible from the front.

[0027] Therefore, the present invention can prevent traffic accidents by minimizing glare for drivers and pedestrians while allowing drivers to easily recognize pedestrians on crosswalks. Brief explanation of the drawing

[0029] FIG. 1 is a perspective view illustrating a lighting reflector according to the present invention. Figure 2 is a rear perspective view illustrating the lighting reflector of Figure 1. Figure 3 is a drawing illustrating the structure for replacing the reflector plate of the lighting reflector of Figure 1. Figure 4 is a perspective view illustrating a lighting reflector with the reflector of Figure 3 replaced. FIG. 5 is a drawing illustrating an embodiment of the LED lighting installation of a lighting reflector according to the present invention. Figure 6 is a diagram illustrating the control of light according to the reflector of the lighting reflector of Figure 5. FIG. 7 is a drawing illustrating a safety light equipped with a lighting reflector according to the present invention. Figure 8 is a drawing explaining the angle adjustment part of Figure 7. Specific details for implementing the invention

[0030] The description of the present invention is merely an example for structural or functional explanation, and therefore the scope of the present invention should not be interpreted as being limited by the examples described in the text. That is, since the examples are subject to various modifications and may take various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific example must include all of them or only such effects; therefore, the scope of the present invention should not be understood as being limited by them.

[0031] Meanwhile, the meaning of the terms described in this application should be understood as follows.

[0032] Terms such as "first," "second," etc., are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component.

[0033] When it is stated that one component is "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when it is stated that one component is "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationships between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0034] A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the implemented features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0035] In each step, identifiers (e.g., a, b, c, etc.) are used for convenience of explanation and do not describe the order of the steps; the steps may occur differently from the specified order unless a specific order is clearly indicated in the context. That is, the steps may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

[0036] Unless otherwise defined, all terms used herein have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the context of the relevant technology and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in this application.

[0038] FIG. 1 is a perspective view illustrating a lighting reflector according to the present invention, FIG. 2 is a rear perspective view illustrating the lighting reflector of FIG. 1, FIG. 3 is a drawing illustrating a structure for replacing the reflector plate of the lighting reflector of FIG. 1, and FIG. 4 is a perspective view illustrating a lighting reflector with the reflector plate of FIG. 3 replaced.

[0039] Referring to FIGS. 1 to 4, a lighting reflector (100) may be installed on the front of an LED light to reflect light emitted from the LED light. To this end, the lighting reflector (100) may include a case (110) and a reflector (130).

[0040] The case (110) serves as the main body of the lighting reflector (100) and may be configured with an internal space formed and both sides open. An LED light may be placed on one of the open sides. A reflector (130) may be placed in the internal space to block the light of the LED light, which has strong directional properties, thereby minimizing the light reaching the eyes directly. In one embodiment, the case (110) may be formed as a tetrahedron in which the volume of the internal space gradually expands toward the front when the direction in which the LED light is placed is considered the rear; however, it is not necessarily limited to this and may be formed as a circle or a polyhedron depending on the shape of the light. The case (110) may have protruding coupling holes (111) formed on both sides of the rear surface through which coupling members, such as bolts, are fastened for coupling with the LED light. Additionally, the case (110) may have guide grooves (113) formed along both inner sides to slide guide the attachment and detachment of the reflector (130). The case (110) may have a hook protrusion (115) formed at the end of the guide groove (113) on both sides of the front to fix or release the reflector (130).

[0041] In one embodiment, the case (110) may be made of a metal material (e.g., aluminum) with high durability and heat dissipation capabilities or a plastic material (e.g., PC, ABS) which is advantageous for lightweighting and cost reduction.

[0042] The reflector (130) can illuminate the crosswalk area by reflecting light in the direction of travel rather than reflecting it back to the driver, thereby preventing glare for the driver. The reflector (130) can be designed with a structure that efficiently reflects or diffuses light. The reflector (130) can be made of a high-reflection aluminum material that has a high light reflectivity to maximize lighting efficiency. In one embodiment, the reflector (130) can achieve uniform lighting by applying a fine pattern or a diffusion coating to its surface. In one embodiment, the reflector (130) can be detachably attached to the case (110). To this end, the reflector (130) can be made of a lightweight material with a thin thickness to facilitate attachment and detachment. Here, the reflector (130) can be optically designed to have a specific curvature according to environmental conditions, and can be implemented with a structure that allows a reflector (130) having a specific curvature to be selected and assembled and installed in the case (110) according to the installation environment. To this end, the reflector (130) is configured in a plate shape having a specific curvature, and guide bars (131) may be formed on both sides so that it can be fitted into the guide groove (113) of the case (110) and installed inside the case (110) in a sliding form. The guide bars (131) of the reflector (130) may be formed in a shape corresponding to the guide groove (113) of the case (110). Additionally, the reflector (130) may have a groove-shaped hook insertion part (133) formed at the end of the guide bar (131) to which the hook protrusion (115) of the case (110) is inserted to fix or release the assembled state.

[0043] The lighting reflector (100) can be easily attached to or detached from the case (110) by applying a hook method to the reflector (130). Here, a hook protrusion (115) is formed on the case (110) and a hook insertion part (133) is formed on the reflector (130), but this is not necessarily limited to this and can be formed in the opposite way. As illustrated in the enlarged view in FIG. 2, during the process of installing the reflector (130) in the internal space of the case (110), the hook protrusion (115) of the case (110) can be inserted into the hook insertion part (133) of the reflector (130) and fixedly fastened. The end of the hook protrusion (115) may have an L-shaped or diagonal structure so that it can be automatically fixed when inserted into the hook insertion part (133). The hook insertion part (133) may include a guiding slope so that it is released when the hook protrusion (115) is pressed.

[0044] When attaching a reflector (130) to a case (110), as shown in FIG. 3, one reflector can be selected from among the first and second reflectors (130a, 130b) having different curvatures to suit the installation environment conditions. The first and second reflectors (130a, 130b) can be designed to have different curvatures and manufactured to be compatible with the case (110) so that they can be easily replaced according to the user's needs. For example, the first reflector (130a) is formed with a curved structure and the second reflector (130b) is formed with a polygonal structure so that the light from the LED lighting can be reflected at an optimal angle. Here, for convenience of explanation, the case where the first reflector (130a) is installed in the internal space of the case (110) is described as an example. When the guide bar (131a) of the first reflector (130a) is pushed into the guide groove (113) of the case (110), the first reflector (130a) can be placed in the internal space of the case (110). During the process of pushing the first reflector (130a) into the internal space of the case (110), the hook protrusion (115) of the case (110) is inserted into the hook insertion part (133) of the first reflector (130a), thereby allowing the first reflector (130a) to be stably fixed to the case (110).

[0045] Meanwhile, depending on the installation environment, the first reflector (130a) installed in the case (110) can be removed and replaced with the second reflector (130b). The first reflector (130a) can be removed by pressing the hook protrusion (115) of the case (110) or by using a dedicated detachable pin to release the hook connection between the first reflector (130a) and the case (110). Then, the second reflector (130b) can be replaced and installed in the internal space of the case (110) through the same connection process as shown in FIG. 4.

[0047] FIG. 5 is a drawing illustrating an embodiment of the installation of LED lighting in a lighting reflector according to the present invention, and FIG. 6 is a drawing illustrating the control of light according to the reflector of the lighting reflector of FIG. 5.

[0048] Referring to FIGS. 5 and 6, each of the first and second reflectors (130a, 130b) can optimize the average road surface illuminance, overall illuminance uniformity, and lane axis illuminance uniformity through shape design based on optical characteristics and the light distribution pattern of the LED lighting (200). This improves the lighting performance of the crosswalk safety light and increases driver visibility while reducing glare. That is, when designing the shape of the reflector (130), the average road surface illuminance, overall illuminance uniformity, and lane axis illuminance uniformity can be considered as key elements. The average road surface illuminance is designed to maintain the average lighting brightness over the entire road at a certain level or higher, thereby optimizing the light distribution of the LED lighting (200) and the reflector (130) to be concentrated on the road surface. The overall illuminance uniformity allows the illuminance to be evenly distributed on the road surface by reinforcing the light dispersion design of the reflector (130). Lane axis illumination uniformity is designed so that the illumination is maintained uniformly along the lane center axis by designing a reflector (130) so that the driver can clearly recognize the lane.

[0049] In one embodiment, the lighting reflector (100) can be positioned to properly reflect the central light and ambient light of the LED light (200) by analyzing the light distribution pattern of the LED light (200) and calculating the optimal reflection angle. The reflector (130) can be designed with a customized curved surface that optimizes the curvature through simulation by considering at least one of the design considerations to evaluate the road surface illuminance and uniformity, and is tailored to at least one of the road width, number of lanes, and lighting height. Additionally, the shape and angle of the reflector (130) can be optimized by verifying the average illuminance, overall uniformity, and lane axis uniformity through ray tracing and illuminance simulation. During the installation process of the crosswalk safety light, the lighting reflector (100) can be easily assembled into the case (110) by selecting a reflector (130) having the optimal shape and angle according to the installation environment and conditions. In addition, even if the installation environment and conditions change, the case (110) can be simply replaced and assembled with a reflector (130) having an optimal shape and angle suitable for it. The first reflector (130a) is formed with a curved structure, so when mounted on the case (110), it can block direct exposure of the LED light (200) as shown in FIG. 5 (a) to prevent glare. The second reflector (130b) is formed with a polygonal structure, so when mounted on the case (110), the LED light (200) is directly exposed as shown in FIG. 5 (b), but the reflection angle of the light is increased, making lane recognition easier. At this time, each of the first and second reflectors (130a, 130b) can control the light emitted from the LED light (200) placed on the rear of the lighting reflector (100) as shown in FIG. 6.

[0050] A simulation of the illuminance of a lighting reflector (100) in which each of the first and second reflectors (130a, 130b) is installed was performed under simulation conditions where the distance between the LED lighting (200) and the road is 1m, the height of the lighting is 1m, and the distance between the lighting is 6m, and the results are as shown in Table 1 below.

[0051] [Table 1]

[0052]

[0053] As shown in Table 1 above, it can be seen that when a lighting reflector (100) equipped with a first reflector (130a) is installed on an LED light (200), it provides a brighter road surface lighting overall than when a lighting reflector (100) equipped with a second reflector (130b) is installed. Additionally, when a lighting reflector (100) equipped with a second reflector (130b) is installed, the overall illumination distribution appears uneven compared to the first reflector (130a). This can be interpreted as being due to the fact that a reflector is not applied to the center of the LED light (200), but it can be seen that the uniformity of illumination along the lane axis has improved. In particular, the uniformity is higher in the second lane (Line 2), making lane recognition easier.

[0054] Therefore, by replacing the reflector (130) to control the light distribution according to various environmental conditions, the illumination distribution can be efficiently improved.

[0056] FIG. 7 is a drawing illustrating a safety light equipped with a lighting reflector according to the present invention.

[0057] Referring to FIG. 7, the safety light (300) may include a housing (310), at least one LED light (330), a light reflector (350), and a front cover (370).

[0058] The housing (310) corresponds to the main body of the safety light (300), and an LED light (330) and a light reflector (350) are installed in the internal space. The front of the housing (310) is open and connected through a front cover (370) to prevent moisture, foreign substances, such as rainwater or snow, from entering the interior. To this end, the gap between the housing (310) and the front cover (370) can be molded with silicone. In one embodiment, the safety light (300) can minimize silicone molding work by attaching a foam tape (380) between the housing (310) and the front cover (370), forming a silicone injection hole on the side of the housing (310), and injecting silicone through the silicone injection hole.

[0059] As illustrated in the enlarged view of FIG. 7, at least one LED light (330) can be installed in a row within the internal space of the housing (310), and a light reflector (350) can be installed at each of the installed lights to form a module.

[0060] The lighting reflector (350) may be implemented by including a case (351) and a reflector (353). The lighting reflector (350) may detachably combine a reflector having a specific reflection angle among a plurality of reflectors (353a, 353b) having different reflection angles, as shown in FIG. 7 (a) and (b), depending on the installation environment conditions of the safety light (300).

[0061] The front cover (370) may be made of tempered glass and may cover the front of the housing (310). At this time, the front cover (370) may be attached to the housing (310) by a taping method in which foam tape (380) is attached along the edge forming the front opening of the housing (310). The front cover (370) may increase the bonding strength with the housing (310) while minimizing the silicone application area by injecting silicone into the side portion through the silicone injection hole.

[0062] The safety light (300) includes angle adjustment parts (390) on both sides of the housing (310) to adjust the angle of the housing (310) and to adjust the direction of light emitted from the LED light (330), and can adjust the brightness of the light through the reflector (353) of the light reflector (350).

[0064] Figure 8 is a drawing explaining the angle adjustment part of Figure 7.

[0065] Referring to FIG. 8, the angle adjustment unit (390) is configured as a bracket structure that rotates the housing (310) and can adjust the illumination angle of the LED light (330). The angle adjustment unit (390) is connected to the center of each side of the housing (310) via an axis, and forms an arched slot (391) around the axis so that the housing (310) can be rotated to a desired angle and then fixed with a bolt (393) on the arched slot (391). That is, the worker installing the safety light (300) can adjust the housing (310) up and down to a specific angle through the angle adjustment unit (390). For example, the illumination angle of the LED light (330) can be adjusted to an angle close to horizontal as in FIG. 8 (a) or to an angle adjusted downward as in (b). Through this, the safety light (300) can perform flexible light distribution control and can set an accurate illumination direction after installation, thereby enabling efficient lighting performance in various environments.

[0067] A lighting reflector according to one embodiment and a safety light equipped with the same are equipped with a reflector that allows for the replacement of the reflector plate, thereby enabling various light distribution environments depending on the applied reflector plate, and through this, improvements in illumination efficiency and uniformity, as well as anti-glare effects, can be expected.

[0068] In addition, the foam tape method can simultaneously improve the workability and recyclability of waterproof structures, and improve silicone molding workability to enhance productivity.

[0069] The present invention can be applied to various lighting fixtures, such as crosswalk safety lights and streetlights.

[0071] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0073] 100: Lighting reflector 110: Case 111: Connecting hole 113: Guide groove 115: Hook protrusion 130: Reflector 130a: 1st reflector 130b: 2nd reflector 131: Guide bar 133: Hook insertion part 200: LED lighting 300: Safety light 310: Housing 330: At least one LED light 350: Lighting Reflector 370: Front Cover 380: Foam tape 390: Angle adjustment part

Claims

Claim 1 A lighting reflector characterized by comprising: a case having an internal space formed and open on both sides; and a plate-shaped reflector having a specific curvature that reflects light from an LED light provided on one open side of the case and detachably disposed in the internal space, wherein the case includes guide grooves formed along both inner sides to slide guide the detachment of the reflector; and hook protrusions formed at the ends of the guide grooves on both front sides to fix or release the reflector disposed in the internal space, wherein the reflector includes guide bars formed on both sides to be fitted into the guide grooves and installed inside the case in a sliding manner, and a groove-shaped hook insertion part formed at the ends of the guide bars to be inserted and fixedly fastened during the installation process in the internal space, and controlling the light distribution of the LED light through the replacement of the reflector. Claim 2 A lighting reflector according to claim 1, characterized in that the case is formed as a tetrahedron in which the volume of the internal space gradually increases toward the front when the direction in which the LED lighting is positioned is called the rear. Claim 3 delete Claim 4 delete Claim 5 A lighting reflector according to claim 1, characterized in that the reflector is designed in shape and angle considering at least one of average road surface illuminance, overall illuminance uniformity, and lane axis illuminance uniformity, and is selected from among a plurality of reflectors designed with different shapes and angles according to installation environment conditions and is replaced and installed in the case. Claim 6 A lighting reflector according to claim 1, characterized in that the reflector blocks direct exposure of the LED light based on the front view to prevent glare. Claim 7 A housing having one side open toward the ground; at least one LED light provided on the open side of the housing and emitting light; a lighting reflector provided in front of each of the at least one LED light and including a replaceable reflector, which controls the light distribution of the LED light through a reflector having a specific shape and angle selected according to installation environment conditions; and a front cover covering the open side of the housing; A safety light having a lighting reflector, comprising an angle adjustment part having a bracket structure that is axially connected to the center of both side portions of the housing and rotates the housing around the axis to adjust the illumination angle of the LED light, wherein the lighting reflector has the reflector plate detachably disposed in the internal space of the case, and the case includes a guide groove formed along both inner sides to slide guide the detachment of the reflector plate, and a hook protrusion formed at the end of the guide groove on both front sides to fix or release the reflector plate disposed in the internal space, and the reflector plate includes a guide bar formed on both sides to be fitted into the guide groove and installed in a sliding form inside the case, and a groove-shaped hook insertion part formed at the end of the guide bar to be inserted and fixedly fastened by the hook protrusion during the installation process in the internal space. Claim 8 A safety light having a lighting reflector according to claim 7, characterized in that the safety light attaches the front cover to the housing by a taping method in which foam tape is attached along the rim forming the front opening of the housing, and silicone is injected through a silicone injection hole formed on the side of the housing to increase the bonding strength between the housing and the front cover.

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