EP0930600B1 - Optikelement aus LED und zwei Linsen für die Erzeugung eines Lichtpunktes für Verkehrszeichen und Anzeigetafeln - Google Patents
Optikelement aus LED und zwei Linsen für die Erzeugung eines Lichtpunktes für Verkehrszeichen und Anzeigetafeln Download PDFInfo
- Publication number
- EP0930600B1 EP0930600B1 EP98890135A EP98890135A EP0930600B1 EP 0930600 B1 EP0930600 B1 EP 0930600B1 EP 98890135 A EP98890135 A EP 98890135A EP 98890135 A EP98890135 A EP 98890135A EP 0930600 B1 EP0930600 B1 EP 0930600B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- led
- lens
- housing
- optical element
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000009826 distribution Methods 0.000 abstract description 18
- 241000219739 Lens Species 0.000 description 56
- 238000005516 engineering process Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000014647 Lens culinaris subsp culinaris Nutrition 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 208000013469 light sensitivity Diseases 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
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- 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
- F21V5/008—Combination of two or more successive refractors along an optical axis
-
- 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
- B61L5/1836—Daylight signals using light sources of different colours and separate optical systems
-
- 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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/048—Refractors for light sources of lens shape the lens being a simple lens adapted to cooperate with a point-like source for emitting mainly in one direction and having an axis coincident with the main light transmission direction, e.g. convergent or divergent lenses, plano-concave or plano-convex lenses
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2207/00—Features of light signals
- B61L2207/02—Features of light signals using light-emitting diodes [LEDs]
-
- 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
-
- 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]
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0418—Constructional details
- G09F13/0472—Traffic signs
-
- 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
-
- 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
- Y10S362/812—Signs
Definitions
- the invention relates to an optical element for traffic signs, in particular Variable message signs, scoreboards or the like, the at least one Condenser lens, one arranged in front of the convergent lens light source and one behind the Concentrating lens arranged dispersing lens, wherein convergent lens and diffuser lens the same have optical axis, on which the light source is arranged, and wherein Conveying lens, scattering lens and light source surrounded by a common housing are.
- Such a display panel is disclosed in DE 42 25 139 A1.
- the said Document deals with the problem, at one above the viewer mounted display panel to direct their light emission as possible downward without the To tilt the table itself.
- the solution to this problem is provided by a corresponding optics, which consists of two elements, namely one of the light source close lying condenser lens and a scattering disc called element, close to the Lens is arranged and forms the front end of the optical element.
- the latter element is used to the exiting light down radiate.
- a lens arrangement is associated with a Laser diode disclosed.
- the lens arrangements described herein are collectively and dispersing lens are not arranged at a distance from each other, but rather it is the collecting lens glued to a unit with a cover glass and the scattering lens.
- the light of one or more lamps means Optical fibers on a variety of points of light, which symbols or Characters are arranged, split and the switching between the ads through Turning on and off the associated lamps causes.
- LED light emitting diodes
- Light-emitting diodes differ from conventional light bulbs not only by the Light generation by means of semiconductor technology, which is a nearly monochromatic colored Generated light, but also by integrated optical measures for light guidance, which on the one hand improve the useful light component, on the other hand universal, cheap Generate light distribution characteristics in narrow and wide beam versions, so that the LED is used directly as a signal light without any further optical measures can be.
- the required light distribution is often only by pre-circuit reachable with additional lenses, the main problem is that high phantom light.
- the lentil of the usually crystal clear transparent LED body bundles incident sunlight directly on the highly reflective internals in the Inside the LED, such as reflector and reflector edge, Terminal lugs and contact points from where it is thrown back. Because of the crystal clear LED body is also the phantom light is relatively whitish and unfiltered and often appears brighter than the sun in unfavorable position actual signal light.
- a known measure is to have a convergent lens in a suitable distance in front of a relatively wide-beam LED to set (Fig. 8).
- the obliquely incident sunlight is at sufficient distance of the LED to the convergent lens for Completely outside the LED passed and on housing surfaces absorbed.
- this arrangement has the disadvantage of large space requirement and is therefore not suitable for universal application.
- Another disadvantage is the usually circularly symmetrical Light emission of the LEDs, which leads that a large amount of light is emitted unused into irrelevant areas, if not also optical measures are taken against it.
- the object of the invention is to provide a universal LED optics for variable message signs develop, which can be used without windscreen and with a smooth outside and the benefits of the LED, such as low energy consumption, long life and Maintenance-free benefits, on the other hand, but has virtually no phantom light, which individually adaptable, in particular oval light distributions without substantial Loss of light allows to different LED designs, LED suppliers or Abstrahl characterizingen is adaptable and the smallest possible axial distance adjacent optics allowed.
- FIGS. 2 to 7 show preferred embodiments in section, Fig. 8 and 9 previously common solutions compared.
- Fig. 1 shows a vertical section through a non-inventive optics.
- the light source 1 Shown in all examples as LED with a broad emission characteristic, you send Light 6 on the immediately before coaxially arranged converging lens 2. This is on the one hand a better light bundling possible than by the use of a narrow beam LED, on the other hand, the light bundling can be affected.
- Within the LED 1 are installed 19 internals. They serve the power supply and the Positioning of the actual luminous semiconductor chip 20, but also form a Auxiliary reflector 21, the side-emitting light in the main emission reflect reflected and therefore have high-gloss surfaces.
- the LED works therefore for optics located in the immediate vicinity not as spotlights, they emits a mixture of direct and reflected light rays. The light can Therefore, only very poorly focused, which is why for the lens geometries too no physically accurate information can be given, but only qualitative Descriptions of their properties.
- the geometry of the Conveying lens is therefore preferably determined in iterative calculations.
- the light beams 7 are deflected so that as many as possible Light rays fall through the scattering lens 3, which is coaxial at a certain distance is arranged to the converging lens. There, the light beams 7 are deflected so or scattered, that the desired light distribution 8 is achieved.
- the angle ⁇ gives the light incidence limit for stray light, especially the light of the low sun 12, which still does not produce phantom light, before.
- the regulations go from a sun's position of 10 degrees vertically above the Reference axis (mostly the direction of maximum useful light intensity) out. Because of unavoidable tolerances and the Size of the sun's diameter itself is recommended Fixing this inclination angle ⁇ to about 9 degrees, it But you can also choose any other angle become.
- the size of the angle ⁇ certainly determines the entire geometry of optics.
- the geometry of the scattering lens 3 is set so that the emerging light beams 8 with their inclinations ⁇ always remain below the inclination angle ⁇ . Hiedruch will ensured that in the opposite direction no Sunbeam 12, provided it is at an angle ⁇ greater than or equal to the optics, the same way back either over the reflector 21 or directly to the Chip 20 of the LED 1 finds and so a lighting of the LED simulated. Nevertheless, light rays 22 to the LED 1 penetrate. They meet others, not immediately involved in the light emission surfaces 23, or often reflected several times on the glass body of the LED and broken and generate in this way also one certain phantom light.
- the length of the optics is therefore preferred set so that no sunbeam at all 12, the angle of incidence ⁇ greater than / equal the inclination angle ⁇ , to the convergent lens 2 or LED 1 can penetrate. This is the case inside with a mat as possible, light-absorbing Surface structure, such as Circumferential grooves and preferred executed in black, so that it hits all the rays of light 12 can absorb as well as possible.
- the housing 4 is completely closed on the circumference, on the one hand, to be able to absorb light at every point, on the other hand, to allow light exchange within the device prevent, but also to the pollution of the lenses too prevent.
- the optic is mounted in a matrix plate 24.
- the Dimensions of the components are not significantly larger in Diameter than the LED itself, so is also one accordingly tight arrangement possible. At the purchase of certain Light losses, the diameter can be even further be reduced.
- Fig. 2 shows a construction which is generally a lesser Length as shown in Fig. 1.
- the divergent ones Beams of light 7 cross each other before striking on the scattering lens 3 and form there a focal spot. 9
- the converging lens 2 requires a higher refraction of light as in the previous example.
- the desired light distribution 8 and the resulting refractive power of the scattering lens 3 there is also the possibility that all the sun's rays 12, which has an angle of incidence ⁇ greater than or equal to Include angle of inclination ⁇ , absorbed on the housing wall become.
- FIG. 3 shows an aperture 10 in the region of the focal spot 9, the opening 11 to the periphery of the light beam 7th is adapted. It holds sunbeams 12 from further penetration completely inside the housing.
- the light absorption on a housing wall is done by an unavoidable surface gloss never completely, so that on the housing wall diffusely reflected light rays can reach the LED.
- Another improvement of Phantom light effect is possible if all penetrating Light rays 12 are caught at the aperture 10 can.
- Fig. 4 shows such optics in plan and plan.
- the Spreading lens 3 has a focal point 14 in the region of Focal spot 9, where there is also a diaphragm 10.
- the focal point of sun rays 12 which parallel to the inclination of the inclination angle ⁇ , within the aperture 10 or just behind it. So no sunbeam can penetrate further into the interior.
- the formation of the scattering lens with focal point 14 has to Result that the light distribution 8 according to the optical imaging laws an upside down image of the aperture 11 and the prevailing light distribution there and intensity.
- the definition of the light distribution must in this case by appropriate detailing of the Conveying lens 2 done by the light beams 7th be swiveled more or less. If necessary, join increased losses due to edge light rays 13 at the diaphragm 10, or no longer on the scattering lens 3 hitting Nutzlichtstrahlen on.
- Fig. 4 further shows that the focal point 14 only in vertical Direction is required.
- the focal point 14 only in vertical Direction is required.
- Fig. 5 shows the deflection of the light distribution 8 by a Angle e, which by a horizontal lens structure 16 is effected. This will increase the visibility in those cases improved, in which the display device is not inclined can be tilted down. At the same angle ⁇ the phantom light sensitivity also improves because also the sunbeams 12 downwards by this amount be directed against the aperture 10.
- Fig. 6 shows in addition to the round shape an oval design for optics with horizontal axis of symmetry, in particular Also oval radiating optics, as well as an egg-shaped design with only a single positioning possibility.
- the housing 4 also run split, making the aperture light can be integrated.
- the subdivision allows in particular the construction of a modular system with different Light distributions and manufacturer-specific LED designs.
- Fig. 7 shows such a modular system optical, mechanical and electrical interfaces represents.
- the rear housing contains the respective Condenser lens and the LED. While the front housing 4 together Aperture 10 is the same here, the rear housing varies depending according to LED type. Since each LED design has its own radiation characteristics has, must also the condenser lens be customized. If in the focal spot 9 each LED type has approximately the same light distribution can they are arbitrarily combined with different scattering lenses 3 become. These can have the same outer barrel, the different scattering structures are located on the Inside. Above a LED 1a is shown in SMD technology, which practically always soldered on a board is. So can all the LED 1a on a common board 17a, which also equal the interconnection and power supply includes, be attached.
- the board 17a becomes after soldering on extensions 18a of the associated housing 4a caught, so that the optics all together be supported and aligned. Even the mix with other types of LED is possible, if necessary, their housing 4b are recessed in the board 17a.
- LED 1b in standard design ⁇ 3 or ⁇ 5 mm. This can either also be soldered onto a board 17b, For this purpose extensions 18b are used for the exact positioning Housing 4 b attached. But you can also freely wired be, especially in small quantities and individually designed devices recommends.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Led Device Packages (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Road Signs Or Road Markings (AREA)
- Traffic Control Systems (AREA)
- Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Claims (4)
- Optikelement für Verkehrszeichen, insbesondere Wechselverkehrszeichen, Anzeigetafeln oder dergleichen, das zumindest eine Sammellinse (2), eine vor der Sammellinse (2) angeordnete Lichtquelle (1) und eine hinter der Sammellinse (2) angeordnete Streulinse (3) umfasst, wobei Sammellinse (2) und Streulinse (3) dieselbe optische Achse aufweisen, auf der auch die Lichtquelle angeordnet ist, und wobei Sammellinse (2), Streulinse (3) und Lichtquelle (1) von einem gemeinsamen Gehäuse (4) umgeben sind, dadurch gekennzeichnet, dass ein sich aus der Anordnung der Lichtquelle (1) zur Sammellinse (2) ergebender, von dem aus der Sammellinse (2) austretenden, divergierenden Lichtstrahlenbündel (7) gebildeter Brennfleck (9) vor der Streulinse (3) liegt.
- Optikelement nach Anspruch 1, dadurch gekennzeichnet, dass im Gehäuse (4) eine Einschnürung, insbesondere eine Blende (10), vorgesehen ist, die im Bereich des Brennflecks (9) angeordnet ist.
- Optikelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Brennpunkt (14) der Streulinse (3) im Bereich des Brennflecks (9) liegt.
- Optikelement nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Gehäuse (4) innen mit schwarzer Farbe und/oder einer matten Oberflächenstruktur, z.B. Umfangsrillen, versehen ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT98890135T ATE311005T1 (de) | 1998-01-19 | 1998-05-08 | Optikelement aus led und zwei linsen für die erzeugung eines lichtpunktes für verkehrszeichen und anzeigetafeln |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0006398A AT500056B8 (de) | 1998-01-19 | 1998-01-19 | Optikelement für verkehrszeichen, anzeigetafeln oder dgl. |
AT6398 | 1998-01-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0930600A1 EP0930600A1 (de) | 1999-07-21 |
EP0930600B1 true EP0930600B1 (de) | 2005-11-23 |
Family
ID=3480553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98890135A Expired - Lifetime EP0930600B1 (de) | 1998-01-19 | 1998-05-08 | Optikelement aus LED und zwei Linsen für die Erzeugung eines Lichtpunktes für Verkehrszeichen und Anzeigetafeln |
Country Status (5)
Country | Link |
---|---|
US (1) | US6249375B1 (de) |
EP (1) | EP0930600B1 (de) |
AT (2) | AT500056B8 (de) |
CA (1) | CA2259750A1 (de) |
DE (1) | DE59813220D1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106151893A (zh) * | 2016-08-16 | 2016-11-23 | 苏州天准科技股份有限公司 | 可调散光度的轮廓光源及影像测量仪 |
DE102017120582A1 (de) | 2017-09-07 | 2019-03-07 | Adolf Nissen Elektrobau Gmbh + Co. Kg | Optische Baugruppe eines Wechselverkehrszeichens und Wechselverkehrszeichen |
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US6607412B2 (en) * | 1997-12-04 | 2003-08-19 | Lance Mueller | Illuminated sign and method for design |
DE19852631C2 (de) * | 1998-11-14 | 2001-09-06 | Daimler Chrysler Ag | Vorrichtung und Verfahren zur Verkehrszeichenerkennung |
DE19926561A1 (de) * | 1999-06-11 | 2000-12-14 | Diehl Stiftung & Co | Strahler, insbesondere Leseleuchte in Kabinen von Fahrzeugen |
TW512214B (en) | 2000-01-07 | 2002-12-01 | Koninkl Philips Electronics Nv | Luminaire |
US6540392B1 (en) * | 2000-03-31 | 2003-04-01 | Sensar, Inc. | Micro-illuminator for use with image recognition system |
CN2458485Y (zh) * | 2000-11-16 | 2001-11-07 | 上海嘉利莱实业有限公司 | 发光二极管照明发光模块 |
EP1227458A3 (de) * | 2001-01-11 | 2004-12-22 | Dr. techn. Josef Zelisko, Fabrik für Elektrotechnik und Maschinenbau Gesellschaft m.b.H. | Anzeige- und/oder Signalsiervorrichtung |
US6955449B2 (en) * | 2001-04-13 | 2005-10-18 | Gelcore Llc | LED symbol signal |
FR2828152B1 (fr) * | 2001-08-03 | 2003-11-14 | Pierre Cibie | Dispositif pour le masquage de projecteurs d'eclairage de vehicules automobiles |
AU2003250349A1 (en) * | 2002-06-14 | 2003-12-31 | Hubertus Maschek | Contrast reinforcement for displays |
US20030231151A1 (en) * | 2002-06-17 | 2003-12-18 | Barlow James E. | Apparatus and method for light enhancing |
WO2004001705A1 (fr) * | 2002-06-24 | 2003-12-31 | Jinggui Lu | Afficheur a guide de lumiere en panneau plat et procede de fabrication |
DE10246950B4 (de) * | 2002-10-08 | 2008-11-13 | Isolde Scharf | Signallichtanordnung |
ITFI20030017A1 (it) * | 2003-01-22 | 2004-07-23 | Ceo Ct Di Eccellenza Optronica | Dispositivo segnalatore per la regolazione del traffico |
AT500013B1 (de) * | 2003-01-31 | 2006-10-15 | Swarco Futurit Verkehrssysteme | Optikelement für wechselverkehrszeichen |
JP4302444B2 (ja) * | 2003-06-24 | 2009-07-29 | 本田技研工業株式会社 | テールライト構造 |
DE10358053A1 (de) * | 2003-12-05 | 2005-07-14 | Siemens Ag | Lichtsignal |
TWM259320U (en) * | 2004-07-02 | 2005-03-11 | Hon Hai Prec Ind Co Ltd | LED illume device |
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DE102004038204B4 (de) | 2004-08-05 | 2006-09-14 | Deutsche Bahn Ag | Signaloptik |
EP1643473B1 (de) * | 2004-09-30 | 2007-02-14 | Dambach-Werke GmbH | Optisches Element für Wechselverkehrszeichen |
EP1696171B1 (de) * | 2005-02-28 | 2010-09-15 | OSRAM Opto Semiconductors GmbH | LED-Anzeigevorrichtung |
NL1030161C2 (nl) * | 2005-10-11 | 2007-04-12 | Matthijs Dirk Meulenbelt | Presentatie-inrichting. |
EP1793245A3 (de) * | 2005-11-25 | 2007-11-07 | Richco Inc. | LED-Linsenabdeckung |
DE102007002403B4 (de) * | 2007-01-17 | 2016-03-03 | Osram Gmbh | Beleuchtungsanordnung, Mehrfach-Lichtmodul, Leuchte und deren Verwendung |
DE102008022346A1 (de) | 2008-04-30 | 2009-11-05 | Siemens Aktiengesellschaft | Lichtsignal |
DE102008022344A1 (de) | 2008-04-30 | 2009-11-05 | Siemens Aktiengesellschaft | Lichtsignal |
DE102008047664A1 (de) | 2008-09-15 | 2010-05-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lichtsignal |
EP2375392A4 (de) * | 2008-12-05 | 2012-06-06 | Dae Ryuk Its Co Ltd | Led-ampel |
EP2226780A1 (de) | 2009-03-02 | 2010-09-08 | Textmate Limited | Elektronische Autobahnanzeige |
PL216006B1 (pl) * | 2009-09-09 | 2014-02-28 | Inst Badawczy Drog I Mostow | Macierzowy uklad optyczny rozsylu swiatla |
TWI419001B (zh) * | 2009-11-06 | 2013-12-11 | Everlight Electronics Co Ltd | 決定光源個數的方法 |
DE102010009432A1 (de) * | 2010-02-24 | 2011-08-25 | Siemens Aktiengesellschaft, 80333 | Symbolanzeiger |
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1998
- 1998-01-19 AT AT0006398A patent/AT500056B8/de not_active IP Right Cessation
- 1998-05-08 DE DE59813220T patent/DE59813220D1/de not_active Expired - Lifetime
- 1998-05-08 EP EP98890135A patent/EP0930600B1/de not_active Expired - Lifetime
- 1998-05-08 AT AT98890135T patent/ATE311005T1/de active
-
1999
- 1999-01-18 CA CA002259750A patent/CA2259750A1/en not_active Abandoned
- 1999-01-19 US US09/233,985 patent/US6249375B1/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106151893A (zh) * | 2016-08-16 | 2016-11-23 | 苏州天准科技股份有限公司 | 可调散光度的轮廓光源及影像测量仪 |
DE102017120582A1 (de) | 2017-09-07 | 2019-03-07 | Adolf Nissen Elektrobau Gmbh + Co. Kg | Optische Baugruppe eines Wechselverkehrszeichens und Wechselverkehrszeichen |
WO2019048310A1 (de) | 2017-09-07 | 2019-03-14 | Adolf Nissen Elektrobau Gmbh + Co. Kg | Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichen |
Also Published As
Publication number | Publication date |
---|---|
US6249375B1 (en) | 2001-06-19 |
AT500056B8 (de) | 2007-02-15 |
DE59813220D1 (de) | 2005-12-29 |
AT500056B1 (de) | 2006-07-15 |
AT500056A1 (de) | 2005-10-15 |
ATE311005T1 (de) | 2005-12-15 |
EP0930600A1 (de) | 1999-07-21 |
CA2259750A1 (en) | 1999-07-19 |
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