WO2007144851A3 - A traffic light - Google Patents
A traffic light Download PDFInfo
- Publication number
- WO2007144851A3 WO2007144851A3 PCT/IB2007/052304 IB2007052304W WO2007144851A3 WO 2007144851 A3 WO2007144851 A3 WO 2007144851A3 IB 2007052304 W IB2007052304 W IB 2007052304W WO 2007144851 A3 WO2007144851 A3 WO 2007144851A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- support
- housing
- source
- traffic light
- Prior art date
Links
Classifications
-
- 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
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention provides a traffic light (1). The apparatus includes a light source (2) contained in a housing (3) and a reflector (11) to direct light at a position spaced apart from the source. The housing is planted in the ground (8), preferably cemented in the pavement. The reflector is conveniently a suitably arranged object with a reflective surface. The support (10) extends upwardly from the housing providing a conduit arranged so that the source projects light upwardly through the support to the reflective object. From here the light is directed through a lens (14) in an opening- in the support. The light source is an array of light emitting diodes (LEDs). In a preferred embodiment, three such arrangements are provided together as a traffic light assembly which switches between green, amber and red light signals in the usual way. The upright support is removably securable and relatively inexpensive. All the working components are protected in the housing. The traffic light also poses a reduced risk should a motor vehicle collide with it. A damaged support can be easily replaced using suitable fastening means.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200604949 | 2006-06-15 | ||
ZA2006/04949 | 2006-06-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007144851A2 WO2007144851A2 (en) | 2007-12-21 |
WO2007144851A3 true WO2007144851A3 (en) | 2008-11-06 |
Family
ID=38832193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2007/052304 WO2007144851A2 (en) | 2006-06-15 | 2007-06-15 | A traffic light |
Country Status (2)
Country | Link |
---|---|
WO (1) | WO2007144851A2 (en) |
ZA (1) | ZA200900328B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB951604A (en) * | 1959-03-03 | 1964-03-04 | Meiners Optical Devices Ltd | Improvements in or relating to lamps |
DE8701881U1 (en) * | 1987-02-07 | 1987-04-02 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Approach flash light for an airport lighting system |
EP0415026A2 (en) * | 1989-07-20 | 1991-03-06 | DR.TECHN. JOSEF ZELISKO, FABRIK FÜR ELEKTROTECHNIK UND MASCHINENBAU GESELLSCHAFT m.b.H. | Apparatus for light signals |
US5575550A (en) * | 1992-12-31 | 1996-11-19 | Minnesota Mining And Manufacturing Company | Pole light having a programmable footprint |
-
2007
- 2007-06-15 WO PCT/IB2007/052304 patent/WO2007144851A2/en active Application Filing
-
2009
- 2009-01-15 ZA ZA200900328A patent/ZA200900328B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB951604A (en) * | 1959-03-03 | 1964-03-04 | Meiners Optical Devices Ltd | Improvements in or relating to lamps |
DE8701881U1 (en) * | 1987-02-07 | 1987-04-02 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Approach flash light for an airport lighting system |
EP0415026A2 (en) * | 1989-07-20 | 1991-03-06 | DR.TECHN. JOSEF ZELISKO, FABRIK FÜR ELEKTROTECHNIK UND MASCHINENBAU GESELLSCHAFT m.b.H. | Apparatus for light signals |
US5575550A (en) * | 1992-12-31 | 1996-11-19 | Minnesota Mining And Manufacturing Company | Pole light having a programmable footprint |
Also Published As
Publication number | Publication date |
---|---|
ZA200900328B (en) | 2010-03-31 |
WO2007144851A2 (en) | 2007-12-21 |
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