KR20140118226A - Crosswalk lighting devices - Google Patents

Crosswalk lighting devices Download PDF

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Publication number
KR20140118226A
KR20140118226A KR1020130033762A KR20130033762A KR20140118226A KR 20140118226 A KR20140118226 A KR 20140118226A KR 1020130033762 A KR1020130033762 A KR 1020130033762A KR 20130033762 A KR20130033762 A KR 20130033762A KR 20140118226 A KR20140118226 A KR 20140118226A
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KR
South Korea
Prior art keywords
light emitting
light
unit
emitting unit
road
Prior art date
Application number
KR1020130033762A
Other languages
Korean (ko)
Inventor
곽준섭
김형진
Original Assignee
인텔렉추얼디스커버리 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 인텔렉추얼디스커버리 주식회사 filed Critical 인텔렉추얼디스커버리 주식회사
Priority to KR1020130033762A priority Critical patent/KR20140118226A/en
Publication of KR20140118226A publication Critical patent/KR20140118226A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/68—Details of reflectors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A pedestrian crossing illuminator is disclosed that allows pedestrians to cross-walk by intensively illuminating a pedestrian cross to be easily identified, and indirect lighting using a reflector is used to avoid direct dimming of pedestrians.
The present invention relates to a lighting system comprising a light emitting unit extending from a lamppole toward a road and arranged to emit light at an upper portion thereof, an arc-shaped reflection unit arranged at an upper end of the light emitting unit, In order to allow the driver of the vehicle to recognize the pedestrian's watch even when the driver of the vehicle is in a bad clock or when approaching a high speed driving, To provide a crosswalk illumination device.

Description

{CROSSWALK LIGHTING DEVICES}

The present invention relates to a crosswalk illuminator, and more particularly, to a crosswalk illuminator capable of uniformly illuminating illumination from a roadway where a crosswalk is drawn to a roadway.

In general, a pedestrian crossing is displayed on the road surface so that the pedestrian can cross the road safely on the road where the car is traveling, and the pedestrian traffic light is installed on the pedestrian crossing pedestrian crossing, To secure the time to cross the road safely.

On the other hand, the street including the area surrounding the pedestrian crossing is provided with a street light which is turned on at sunset and unlit during the day, so that a vehicle traveling on the road at night and a pedestrian crossing the road can safely run and walk.

However, since a general streetlight as described above should not confuse a driver's view of a driving car, its brightness is relatively dark, so that a person or an object at a close distance can be identified. However, This is not easy.

As an example of the prior art for solving the above-mentioned problems, there has been proposed a method of using a signal lamp pillar having a light for pedestrian protection as shown in Fig. 1, Fig. 4, Fig. 8, etc. of Korean Utility Model Registration Application No. 20-2000-6419 Assembly 'has been provided. This technique is intended to secure the safety of pedestrians by illuminating the crosswalk at night by attaching an illumination light for illuminating a pedestrian crossing to a signal light for vehicle control installed at a position adjacent to the pedestrian crossing. However, such a prior art light fixture with a light fixture requires that the angle of the light fixture provided to illuminate the crosswalk be adjusted in view of the fact that the traffic light is installed at a position substantially spaced from the crosswalk in general, The light emitted from the illuminating lamp installed so as to have a slope may interfere with the visibility of the driver to threaten safe driving. In addition, this technique can be applied only to the crosswalk where the traffic light is installed.

That is, in the case of a road where a pedestrian crossing for pedestrians is displayed on the road but the number of pedestrians is not so large and the traffic volume of the vehicle is not large, and the traffic lights for vehicles and pedestrians are not installed, It is difficult to recognize the presence or absence of a crosswalk in front of the vehicle, which may cause a human accident that can not be reversed if the vehicle travels at a high speed.

SUMMARY OF THE INVENTION [0006] Accordingly, an object of the present invention is to provide a pedestrian crossing illuminating device that allows easy identification of a pedestrian crossing a pedestrian by intensively illuminating a pedestrian crossing, and indirect lighting by using a reflector, .

According to an aspect of the present invention, there is provided a crosswalk lighting apparatus including: a light emitting unit extending from a lamppole to a road and arranged to emit light upward; And an arc-shaped reflector disposed at an upper end of the light-emitting portion and indirectly dimming the light by reflecting the light.

The light emitting unit includes a first light emitting unit arranged to be horizontal with respect to the ground; And a second light emitting unit rotatably coupled to one end of the first light emitting unit. At this time, the output of the first light emitting unit may be larger than the output of the second light emitting unit. The lens emission angle of the first light emitting unit may be greater than the LED emission angle of the second light emitting unit.

The reflector may have a shape in which two arc-shaped reflectors are connected. The reflector is installed to have a predetermined angle with respect to the ground, and receives the light of the light emitting unit to reflect the light toward the lead side and the road side. For example, the reflector is formed in an arc shape having a radius of 100 to 180 mm, and is installed so as to be rotated by 10 to 15 degrees with respect to the ground, and the interval between the light emitting portion and the reflector is 300 mm ≪ / RTI >

The crosswalk lighting device according to the present invention is installed on a pedestrian crossing and can illuminate both the roadway and the roadway so that the pedestrian can secure a clock from the road to the road. If the driver of the vehicle is bad at night or bad weather, The crosswalk can be easily recognized even when approaching at a high speed, so that an accident that may occur in the crosswalk can be prevented.

In addition, by using the indirect lighting using the reflector, there is an advantage that the pedestrian can easily pass the crosswalk by reducing the glare caused by the light that can be felt by the pedestrian, and the angle of the reflector, which is rotatably installed, And a design change can be facilitated so as to have a uniform illuminance.

The first light emitting unit may further include a first connection unit connecting the lamp unit and the first light emitting unit and adjusting a position of the first light emitting unit. For example, the first connection portion may be rotated around two axes to adjust the position of the first light emitting portion. The lighting unit may further include a second connection unit connecting between the lamp post and the reflection unit and adjusting the position of the reflection unit. For example, the second connection portion may be rotated around two axes to adjust the position of the reflection portion.

The control unit may further include a controller for individually controlling the first and second light emitting units. The controller may operate in conjunction with a traffic light to illuminate the vehicle with a high luminance while the signal lamp is turned on.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a schematic configuration of a crosswalk illumination device according to an embodiment of the present invention.
2 shows a schematic configuration of a crosswalk illumination device according to another embodiment of the present invention.
3 schematically illustrates the operation of a crosswalk illuminator according to an embodiment of the present invention.
Fig. 4 is a graph showing the simulation result when the illuminance is measured while changing the radius of the arc-shaped reflector by setting the angle of the reflector to an angle of 10 지 with the ground.
5 is a graph showing a simulation result when the illuminance is measured while changing the radius of the arc-shaped reflection portion by setting the angle of the reflection portion to an angle of 15 과 with respect to the ground.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a schematic configuration of a crosswalk illumination device according to an embodiment of the present invention.

Referring to FIG. 1, a crosswalk illumination device according to an exemplary embodiment of the present invention may include a light emitting portion 100 and a reflection portion 200.

The light emitting portion 100 is disposed so as to extend from the lamppost to the road, horizontally to the ground, and to emit light upwardly.

The reflector 200 is disposed at the upper end of the light emitting unit 100 and has an arc shape. The reflector 200 reflects the light emitted from the light emitting unit 100 and indirectly dims the light emitted from the light emitting unit 100. For example, the reflector 200 is installed at a predetermined angle (b) so that the reflector 200 is higher on the road side from the road side on the road surface. At this time, the light emitting unit 100 is installed horizontally with the ground, and the light emitted from the light emitting unit 100 is reflected by the reflection unit 200 to dim the road side.

Meanwhile, the reflector 200 may be vertically movable to adjust the interval between the reflector 200 and the light emitting unit 100. This is so that light can be uniformly illuminated throughout the crosswalk in accordance with the width of the road on which the crosswalk is installed.

That is, when light is emitted into the inside of the reflector having the shape of an arc of the light emitting unit 100, the light is broadly spread by an arc shape and dimmed. At this time, by controlling the angle of the reflection part, it is possible to control the position from the side of the vehicle 10 to the side of the road 20 so as to be dimmed.

On the other hand, in order to control the dimming range as described above, a light emitting angle of the LED lens of the light emitting portion is large so that a wider range can be dimmed. In addition, high output LEDs can be used to increase the amount of illumination.

2 shows a schematic configuration of a crosswalk illumination device according to another embodiment of the present invention.

2, the light emitting unit 100 may include two light emitting units, that is, a first light emitting unit 110 and a second light emitting unit 120 connected to each other. In the case where the light emitting portion is composed of the first light emitting portion 110 and the second light emitting portion 120 as described above, an angle is formed between the first light emitting portion 110 and the second light emitting portion 120, The portion 120 can be rotated. When the light emitting portion is constructed as described above, it is easy to control the range of the illuminance. The first light emitting unit 110 and the second light emitting unit 120 may include LEDs having different emission angles from each other, A lens can be used. Accordingly, when the light is modulated as described above, the first light emitting portion 110 for illuminating the road 20 side has a large illuminated area and the second light emitting portion 120 illuminating the sidewalk 10 has a light illuminated area Is smaller than the dimming area by the first light emitting portion. Therefore, the output of the first light emitting unit 110 may be configured to be larger than the output of the second light emitting unit 120 in order to uniform the overall illuminance of the crosswalk. That is, the output of the first light emitting unit 110, which needs to be illuminated over a wide range, is increased, and the output of the second light emitting unit 120, which needs to illuminate a narrow area, is configured to be smaller than that of the first light emitting unit 110, It is possible to uniformly adjust the illuminance in the direction of the sideward and the direction of the road.

In addition, in dimming the road side, it is preferable that the LED lens of the first light emitting portion 110 has a large light emission angle because of a large dim range. On the other hand, it is preferable to use the LED lens of the second light emitting portion 120 having an angle smaller than the light emitting angle of the LED lens of the first light emitting portion 110, Do.

In addition, the inclination of the reflector 200 can be adjusted so that the position where the light is dimmed can be adjusted. For example, the angle of rotation can be adjusted by being rotatably coupled to a column of street lamps. As another example, it may be hinged to be rotatable at the center of the reflection portion, and may be rotated about the center of the reflection portion to form a tilt.

Further, as shown in FIG. 2, the reflector 200 may be formed by connecting two arc-shaped reflectors. The reflector may include a reflector having an arc shape on both sides of a connection portion hinged to be rotatable. The light can be indirectly dimmed by reflecting the light in the arc-shaped reflecting portion 200. In addition, the reflection unit may be installed to rotate at a predetermined angle with respect to the ground. The angle of the reflection part can be adjusted to adjust the position where the light is dimmed.

Meanwhile, the reflector 200 may be vertically movable to adjust the gap between the reflector 200 and the first light emitting unit 200. The dimming range can be changed by adjusting the interval between the reflective portion 200 and the first light emitting portion 110 so that light can be uniformly illuminated over the entire crosswalk according to the width of the road on which the pedestrian crossing is installed.

A first connection part 130 connecting between the lamppole and the first light emitting part and adjusting the position of the first light emitting part, and a second connection part 130 connecting between the lamppole and the reflection part, And a second connection unit 230 that can adjust the second connection unit 230. The first connection part 130 may be rotated about two axes to adjust the position of the first light emitting part, and the second connection part 230 may be rotated around two axes to adjust the position of the reflection part. As described above, by controlling the degree of rotation of the first connection part 130 and the second connection part 230, the direction and the illuminance range of the illumination can be easily controlled by adjusting the position.

The control unit may further include a controller for individually controlling the first and second light emitting units. It is usually used to illuminate only in India, but it is possible to save electric energy by making it possible to illuminate the road as soon as the traffic lights are turned on. In addition, since the driver of the vehicle is aware that the traffic light is turned on when the driver is dimmed toward the road, the occurrence of an accident can be reduced. Meanwhile, the control unit may operate in conjunction with a traffic light to illuminate the vehicle at a high luminance while the signal lamp is turned on. This allows the driver to recognize that there is a pedestrian crossing, and when the traffic light is turned on, the pedestrian crossing can be clearly seen by setting the elevation of the pedestrian crossing so that the crossing pedestrian crossing can be clearly seen Can be reduced.

Hereinafter, the operation and effects of the present invention will be described with reference to the drawings.

3 is a schematic view of the operation of a crosswalk lighting apparatus according to an embodiment of the present invention.

Referring to the drawing, the reflector 200 has an arc shape and its inner surface is inclined toward the road side. Meanwhile, the light emitting unit 100 is disposed at the lower end of the reflection unit and horizontally installed on the ground.

The range in which light is reflected and dimmed by the illumination device installed as described above is shown in the figure.

As shown in the drawing, the light emitted from the light emitting unit 100 is reflected on the inner surface of the arc-shaped reflection unit 200 to be dimmed. By using the arc-shaped reflecting portion 200, it is possible to widely spread the light of the light emitting portion which is illuminated with a straight line. In this case, the LED lens of the light emitting portion may be replaced with an LED lens having a large light emitting angle in order to spread the light more widely. In addition, if the output is insufficient, the illuminated LED can be used to increase the illuminance.

Hereinafter, a description will be given while looking at the simulation results for searching for the optimum dim condition of the present invention.

FIGS. 4 to 5 show simulation results for finding optimum conditions in a pedestrian crossing in a city area, which is a four-lane road reference, according to changes in conditions for simulation of a pedestrian crossing illuminating device, which is an embodiment of the present invention. The simulation conditions were such that the distance between the light emitting part and the reflecting part was fixed to 30 cm and the uniformity of the illuminance was measured while adjusting the inclination and radius length of the reflecting part.

4 is a graph showing a simulation result when illuminance is measured while changing the size of the radius of the reflection portion by setting the angle of the reflection portion to be inclined by 10 占 about the ground surface.

5 is a graph showing a simulation result when illuminance is measured while changing the size of the radius of the reflection portion by setting the angle of the reflection portion to be 15 占 about the ground.

The simulation results show that the optimum illumination distribution is obtained under the simulation conditions 22 to 28 of the simulation results shown in FIG. Among them, we can see that the uniformity from India to the road is the highest in the result under condition 23.

Therefore, it is desirable to use the angle condition shown in FIG. 5, but it is preferable to use 23 simulation conditions having uniform illumination. That is, it is preferable that the diameter of the arc-shaped reflection portion is 140 mm, the inclination angle of the reflection portion is 15 mm, and the distance between the reflection portion and the light-emitting portion is 300 mm.

As described above, the crosswalk lighting device according to the present invention illuminates both the roadway and the crosswalk to provide a pedestrian's watch, and when the driver of the vehicle has a bad clock or a state of approaching at a high speed There is an advantage that the crosswalk can be easily recognized.

In addition, by using the indirect lighting, it is possible to reduce the ease of glare caused by the light that the pedestrian can feel.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: India 20: Road
100: light emitting portion 110: first light emitting portion
120: second light emitting part 130: first connection part
200: reflection part 230: second connection part
300: streetlight

Claims (13)

A light emitting unit extending from the lamppole toward the road and arranged to emit light upward; And
And a reflector disposed at an upper end of the light emitting unit and having an arc shape for indirectly dimming light by reflecting light. The light-emitting device according to claim 1,
A first light emitting unit arranged to be horizontal with the ground; And
And a second light emitting portion rotatably coupled to one end of the first light emitting portion. 3. The method of claim 2,
And the output of the first light emitting portion is larger than the output of the second light emitting portion. 3. The method of claim 2,
Wherein the lens emitting angle of the first light emitting portion is larger than the LED lens emitting angle of the second light emitting portion. The apparatus of claim 1,
Characterized in that two or more arcs are connected to each other. The apparatus of claim 1,
It is installed so as to have a constant angle with respect to the ground,
And light is received by the light emitting unit to reflect light toward a lead side and a road side. The method according to claim 1,
The reflector is formed in an arc shape having a radius of 100 to 180 mm,
It is installed by rotating 10 ~ 15 기준 relative to the ground,
And the interval between the light emitting portion and the reflection portion is 300 mm. The method according to claim 1,
Further comprising a first connection unit connecting the lamp unit and the first light emitting unit and adjusting a position of the first light emitting unit. 9. The method of claim 8,
Wherein the first connection portion is rotated about two axes to adjust the position of the first light emitting portion. The method according to claim 1,
Further comprising a second connection unit connecting between the lamppole and the reflection unit and adjusting a position of the reflection unit. 11. The method of claim 10,
And the second connecting portion is rotated about two axes to adjust the position of the reflection portion. The method according to claim 1,
Further comprising a control unit for individually controlling the first and second light emitting units. 13. The method of claim 12,
Wherein the control unit is operable in conjunction with a traffic light so that the traffic light can be illuminated with a high luminance by increasing the output while the traffic light is turned on.
KR1020130033762A 2013-03-28 2013-03-28 Crosswalk lighting devices KR20140118226A (en)

Priority Applications (1)

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KR1020130033762A KR20140118226A (en) 2013-03-28 2013-03-28 Crosswalk lighting devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130033762A KR20140118226A (en) 2013-03-28 2013-03-28 Crosswalk lighting devices

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