EP2953833A2 - Lichtsignal - Google Patents
LichtsignalInfo
- Publication number
- EP2953833A2 EP2953833A2 EP14711464.9A EP14711464A EP2953833A2 EP 2953833 A2 EP2953833 A2 EP 2953833A2 EP 14711464 A EP14711464 A EP 14711464A EP 2953833 A2 EP2953833 A2 EP 2953833A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- optical system
- phantom
- signal
- fresnel lens
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000012800 visualization Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 4
- 239000006059 cover glass Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000005770 birds nest Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 235000005765 wild carrot Nutrition 0.000 description 1
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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/125—Fixed signals, beacons, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/1809—Daylight signals
- B61L5/1845—Optical systems, lenses
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2207/00—Features of light signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/1809—Daylight signals
- B61L5/1854—Mounting and focussing of the light source in a lamp, fixing means
Definitions
- the invention relates to light signal, a light signal, in particular for rail-bound traffic routes, with a light source and egg ⁇ nem optical system for signal term visualization, particularly in a remote area, and a close range with respect to this bent.
- light signals are used as a signal generator or symbol ⁇ scoreboard, by color and / or forming a light-emitting surface, that is, by the radiation, convey certain information. These are often safety-relevant information that must not be falsified visually or blended by extraneous light.
- the undesired lighting up or falsification of a light spot by the incidence of ambient light, for example solar radiation or headlight, is called a phantom effect.
- the phantom effect it can in extreme cases ⁇ look incorrect as a result of ill-timed lighting of a light spot or a color shift coming. Particularly disturbing occurs this effect in the Verwen ⁇ tion of LED arrays as a light source, since LEDs can be excited by incident light to shine or in LED light sources often rear reflectors are used.
- Light exit surfaces of a cover glass and the optical system such as a Fresnel lens, and on compo ⁇ len in the region of the light source.
- a cover glass and the optical system such as a Fresnel lens
- compo ⁇ len in the region of the light source.
- Figure 1 shows the reflection ratios to be improved which are caused by internal fittings 1 and a lens 2 of a Lichtsig ⁇ Nals. It is evident that obliquely incident on the lens 2 at the top 3 sunlight reflected on the externa ⁇ ßerer and inner surface 4 and 5 are partially obliquely downward 6 and 7.
- the lens 2 soudrin ⁇ ing sunlight 3 can at the internals 1 within a Signal housing 8 are reflected at an unfavorable angle as a disturbing phantom light obliquely down 9.
- the re ⁇ flexed ghost light 6, 7 and 9 superposed on the to be visualized by a light source 10 of information.
- the all construction parts enclosing housing 8 also serves to at least ei ⁇ NEN part of the sunlight 3, both inside and au ⁇ infomon shield. Usually, a further portion of the sunlight 3 is shielded by a barge, not shown here, covering the lens 2 in the upper area.
- barges have the disadvantage that a high wind load arises, which must be compensated by a correspondingly stable signal mast construction. Through snow on the barge further signals can be covered. Besides the ⁇ is by barge, which significantly surpasses the light-emitting surface of the signal often prevents the application itself ⁇ cleaning light-emitting surface coatings that solar radiation and require irrigation.
- the invention has for its object to provide a light signal of the generic type, in which a deterioration of safety and significant loss of light due to the Phantom effect are largely avoidable, it being desirable that barges and / or end glasses are unnecessary.
- the object is achieved in that the optical system comprises a Fresnel lens, the Lichtein ⁇ tread surface Fresnel structures and the Lichtaus ⁇ is stepped surface formed such that each tangent of the light exit surface with respect to an optical axis of the op ⁇ tables system an angle of> 105 °.
- the Fresnel structures are provided on the light entry surface and thus on the inner surface and not, as usual, on the outer surface of the Fresnel lens, the light exit surface ⁇ can be smooth and virtually formed without corrugations. This smooth and thus less sensitive surface causes a cover glass is no longer neces sary ⁇ .
- the inventive design of the Fresnel lens is sufficiently phantom to dispense with a barge as additional phantom protection can. This results in cost advantages.
- a funnel-shaped aperture is integrally ⁇ arranged between the light source and the optical system. This additional measure improves the phantom contactor if internal installations can lead to light phantoms next to or near the light source.
- the narrow opening of the funnel-shaped aperture is adapted to the light exit surface of the light source, while the wide opening of the funnel-shaped aperture corresponds to the aperture of the optical system.
- FIG. 1 shows a simplified illustration of interfering phantom light reflections
- FIG. 2 phantom light reduction in the interior of the signal
- FIG. 3 phantom light reduction by shaping according to the invention of a Fresnel lens
- Figure 4 shows the Fresnel lens according to Figure 3 in side view
- FIG. Figure 2 illustrates one way to reduce by the A ⁇ built 1 caused ghost light.
- a funnel-shaped aperture 11 is provided.
- the funnel-ge diaphragm 11 encloses with its narrow opening, the light source 10 and ⁇ widens up to the edge region of the hold ⁇ ren surface 5 of the lens 2.
- the fittings 1 can not cause any ghost light 9 more.
- the sunlight 3 impinges on the inner surface of the funnel-shaped aperture 11, where it is absorbed in part and multiple reflectors ⁇ advantage, so can result 12 extremely low light intensity only outwardly reflected light which only partially interfere as ghost light, while the largest Share is radiated in non-relevant solid angle.
- Figure 3 shows another way to effectively reduce the phantom effect. Shown is the cross-section of a thin disk of a Fresnel lens 13 in the region of an optical axis 14.
- the Fresnel lens 13 is formed with the Fresnel structures 15 at the light entrance surface and a light exit surface glat ⁇ th 16th In this case, an angle between the Tan ⁇ gente 17 at this point and the optical axis 14 of 90 ° + is provided for all Punk ⁇ te the light exit surface 16, wherein ⁇ 15 °.
- Figure 4 shows a side view and Figure 5 is a Perspecti ⁇ vische view of the Fresnel lens 13. Due to the very out. The ⁇ chen ghost light reductions this special shape of the Fresnel lens 13 to turn in particular at the same time encryption is the funnel-shaped diaphragm 11, it is possible to dispense with the usual Schuten-roofing of the Fresnel lens 13. Also, a cover glass is not required because of the smooth outer surface 16 of the Fresnel lens 13. The outer surface surface 16 may be formed virtually self-cleaning by special coating, as for the cleaning effect, it ⁇ ford variable rain exposure of the outer surface is prevented not by a barge.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013205439.4A DE102013205439A1 (de) | 2013-03-27 | 2013-03-27 | Lichtsignal |
| PCT/EP2014/054659 WO2014154476A2 (de) | 2013-03-27 | 2014-03-11 | Lichtsignal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2953833A2 true EP2953833A2 (de) | 2015-12-16 |
| EP2953833B1 EP2953833B1 (de) | 2017-04-26 |
Family
ID=50342285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14711464.9A Not-in-force EP2953833B1 (de) | 2013-03-27 | 2014-03-11 | Lichtsignal |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20160059873A1 (de) |
| EP (1) | EP2953833B1 (de) |
| CN (1) | CN105050880B (de) |
| AU (1) | AU2014243336B2 (de) |
| DE (1) | DE102013205439A1 (de) |
| RU (1) | RU2619678C2 (de) |
| WO (1) | WO2014154476A2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9719662B1 (en) * | 2014-10-08 | 2017-08-01 | Universal Lighting Technologies, Inc. | Thin-form lens for volume lighting applications |
| DE102016117685A1 (de) * | 2016-09-20 | 2018-03-22 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
| EP3336418A1 (de) * | 2016-12-13 | 2018-06-20 | Lite-on Electronics(Guangzhou) Limited | Lichtemittierende vorrichtung |
| US10120109B2 (en) | 2016-12-13 | 2018-11-06 | Lite-On Electronics (Guangzhou) Limited | Light emitting device capable of reducing reflected light and changing a focused position of incident light |
| DE102018209468A1 (de) | 2018-06-13 | 2019-12-19 | Siemens Aktiengesellschaft | Lichtsignal, Gehäuse und optische Linse |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1600239A (en) * | 1924-10-06 | 1926-09-21 | Chicago Railway Signal & Suppl | Optical system |
| US1627895A (en) * | 1925-01-15 | 1927-05-10 | Alexander H Handlan | Signal lantern and lens therefor |
| GB252217A (en) * | 1925-01-20 | 1926-05-20 | William John Thorrowgood | Improvements in luminous indicators, particularly for use in connection with railwaytraffic |
| US1955597A (en) * | 1929-12-17 | 1934-04-17 | Us Holding Corp | Headlight |
| GB502980A (en) * | 1937-10-13 | 1939-03-29 | James Boot | Improvements in colour-light signals |
| US2458401A (en) * | 1945-11-02 | 1949-01-04 | Gen Railway Signal Co | Light signal for railroads |
| US3129335A (en) * | 1961-06-30 | 1964-04-14 | Stewart John Kenneth | Photosensitive railroad surveying system |
| NL7201040A (de) * | 1972-01-26 | 1973-07-30 | ||
| US4081826A (en) | 1975-05-15 | 1978-03-28 | Sony Corporation | Video time base corrector |
| US4991073A (en) * | 1989-03-08 | 1991-02-05 | Gte Products Corporation | Lighting lens |
| CN2289945Y (zh) * | 1997-01-06 | 1998-09-02 | 王�琦 | 增强型粗环菲涅尔透镜色灯信号机 |
| AT500056B8 (de) * | 1998-01-19 | 2007-02-15 | Swarco Futurit Verkehrssignals | Optikelement für verkehrszeichen, anzeigetafeln oder dgl. |
| DE10107256A1 (de) | 2001-02-16 | 2002-09-19 | Lumino Gmbh Licht Elektronik | Anzeigenvorrichtung |
| DE10354176A1 (de) * | 2003-11-19 | 2005-08-04 | Dialight Garufo Gmbh | Signalleuchte |
| JP4887989B2 (ja) * | 2005-12-02 | 2012-02-29 | ナノフォトン株式会社 | 光学顕微鏡及びスペクトル測定方法 |
| CN201103852Y (zh) * | 2007-09-12 | 2008-08-20 | 张红现 | 铁路信号灯头 |
| TWM364824U (en) * | 2008-09-19 | 2009-09-11 | Genius Electronic Optical Co Ltd | Optical lens body of bilateral asymmetry polarization illumination |
| DE102010024381A1 (de) | 2010-06-16 | 2011-12-22 | Siemens Aktiengesellschaft | Lichtsignal |
| DE102011076123A1 (de) * | 2011-05-19 | 2012-11-22 | Siemens Ag | Lichtsignaleinrichtung sowie Verfahren zum Ermitteln des Verschmutzungsgrades einer Abschlussscheibe eines Signalgebers |
-
2013
- 2013-03-27 DE DE102013205439.4A patent/DE102013205439A1/de not_active Withdrawn
-
2014
- 2014-03-11 CN CN201480018016.3A patent/CN105050880B/zh not_active Expired - Fee Related
- 2014-03-11 AU AU2014243336A patent/AU2014243336B2/en not_active Ceased
- 2014-03-11 US US14/780,619 patent/US20160059873A1/en not_active Abandoned
- 2014-03-11 WO PCT/EP2014/054659 patent/WO2014154476A2/de not_active Ceased
- 2014-03-11 EP EP14711464.9A patent/EP2953833B1/de not_active Not-in-force
- 2014-03-11 RU RU2015146027A patent/RU2619678C2/ru not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013205439A1 (de) | 2014-10-02 |
| US20160059873A1 (en) | 2016-03-03 |
| AU2014243336A1 (en) | 2015-10-01 |
| CN105050880B (zh) | 2017-05-03 |
| RU2619678C2 (ru) | 2017-05-17 |
| WO2014154476A3 (de) | 2015-04-16 |
| EP2953833B1 (de) | 2017-04-26 |
| RU2015146027A (ru) | 2017-05-04 |
| AU2014243336B2 (en) | 2016-09-15 |
| HK1216412A1 (zh) | 2016-11-11 |
| CN105050880A (zh) | 2015-11-11 |
| WO2014154476A2 (de) | 2014-10-02 |
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