EP3679295A1 - Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichen - Google Patents
Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichenInfo
- Publication number
- EP3679295A1 EP3679295A1 EP18779199.1A EP18779199A EP3679295A1 EP 3679295 A1 EP3679295 A1 EP 3679295A1 EP 18779199 A EP18779199 A EP 18779199A EP 3679295 A1 EP3679295 A1 EP 3679295A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- lens
- light sources
- optical assembly
- assembly according
- 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.)
- Withdrawn
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
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
- G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
-
- 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
-
- 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
- F21Y2113/00—Combination of light sources
- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
-
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/001—Axicons, waxicons, reflaxicons
Definitions
- the invention relates to an optical assembly for a exhibiting display field, in particular display field of a traffic sign o- a variable traffic sign. Furthermore, the invention relates to a display field, in particular for a traffic sign or variable message signs, as well as a traffic sign, in particular variable message signs with an optical display panel.
- variable traffic signaling device for displaying a traffic sign having luminous elements arranged in a matrix, at least one traffic sign according to the Highway Code and optionally at least one reference text and / or at least one additional character according to the Highway Code being displayed for driving the luminous elements are .
- regulatorl iche variable traffic sign devices have a plurality of lighting elements, preferably light emitting diodes (LED), which are appropriately driven together a traffic sign or a hint for road users together.
- LED light emitting diodes
- EP 0 930 600 B1 describes an optical element for traffic signs, in particular variable message traffic signs, display panels or the like, wherein the optical element comprises a collecting lens, a light source arranged in front of the collecting lens and a scattering lens arranged behind the collecting lens, the collecting lens and the scattering lens have the same optical axis, on which the light source is arranged.
- the converging lens, scattering lens and light source are surrounded by a common housing.
- the object of the invention is to provide an optical assembly for a display panel, in particular a display panel of a traffic sign, with a plurality of different-colored light sources for a lens in a simple manner.
- an optical assembly for a display panel in particular display panel of a traffic sign or a traffic sign, with a lens and a series of at least two or three, in particular different colored, light sources, in particular a light-emitting diode (LED), wherein the light sources are arranged linearly next to each other at constant intervals along an axis, each light source each having an optical axis and the optical axes of the light sources parallel to each other and in a plane ange- are arranged, and wherein the lens for the light sources from the light sources is spaced apart, wherein the lens is formed with one of the row of light sources facing light entrance side and with the light sources facing away from the light exit side, wherein the light entry side of the lens with a conical collecting optics for the light sources of the series emitted light is formed and wherein the collection optics has a crest line in the region of its apex, so that the collection optics has a l inie, or wherein the collection optics in the region of
- the invention is based on the idea that in the provision of a plurality of juxtaposed light sources which emit different colored light from each other, a focus line or multiple focus points are provided by the lens, so that it is possible I, the light sources on the focus line or in the To arrange and align focus points, which is reduced in the coupling of the light of the various light sources in the lens of the effect of the color separation.
- the light-emitting chips of an RGB LED are used as light sources whose optical axis is aligned perpendicular to the surface of the respective chip.
- An RGB LED is a light-emitting diode which emits red, green and blue light by means of a respective light-generating chip, wherein the light-generating chips of the light-emitting diode are arranged in a preferably single housing.
- the development of the optical assembly is characterized in that the apex line of the collection optics in the plane of the optical axes of the light sources, in particular the light-emitting diode (LED), is located or arranged.
- the light sources are preferably arranged in the focus of the focus line.
- the light-emitting chips of a RGB LED are arranged in the focus of the focus line.
- the collecting optics has a vertex line
- the collecting optics have a pitched roof-like shape in a preferably middle part, with the pitched roof-like shape being formed between two semicone-like shapes of the collecting optics.
- the pitched roof-like shape in the middle part of the collection optics is preferably formed by two planes which are aligned at a predetermined angle, preferably in an obtuse angle to one another.
- the crest line between the two planes is formed.
- the apex line is arranged in a horizontal plane together with the optical axes of the light sources, in particular the light-emitting chips of an RGB LED.
- the light sources are arranged such that the axis of the juxtaposed light sources is aligned parallel to the apex line of the collection optics.
- the vertices of the collection optics are arranged side by side on an axis at constant intervals.
- the distance of the vertices of the collection optics corresponds to the distances of the (middle) optical axes of the differently colored chips of an RGB LED.
- the or all tangents are at the vertices in a plane which is further preferably oriented perpendicular to the optical axis of the lens.
- the collecting optics in a central part has a curved shape or is formed with a bead, wherein the curved shape or the bead between two semi-conical shapes is formed, and wherein in each case a depression between the curved shape or the bead and each semi-conical shape is formed.
- the vertices of the collection optics are preferably arranged in the plane of the optical axes of the light sources. If the light sources are designed as differently colored light-emitting chips of an RGB LED, the vertices of the collection optics lie on the optical axes of the light-emitting chips.
- the collection optics for each light source in particular a light-emitting diode (LED), each having a focus, wherein the respective focus for a light source and each light source opposite vertex of the collection optics lies on the optical axis of the respective light source.
- LED light-emitting diode
- the light exit side of the lens is formed as a flat cylindrical radiating surface or as a plane prismatic radiating surface.
- the radiating surface has a vertical meridian with a predetermined curvature, while the horizontal meridian has no curvature.
- the horizontal beam angle is increased, resulting in a better visibility of the variable traffic sign.
- the light exit side is designed as a plane surface with or without a prism, with a larger overall emission angle being generated by the plane surface and the vertical emission angle being approximately equal to the horizontal emission angle.
- the light exit side is formed with a prism function, it is achieved that thereby the beam path is tilted down, whereby at a above a viewer arranged display panel with the optical assemblies, the viewing of the display panel is optimized.
- display panels or displays which are mounted on the level of a viewer, is dispensed with in the emission surface or the lens or the lenses on a prism.
- the light exit side of the lens is formed as a prismatic radiating surface having a toric surface having a vertical meridian and a horizontal meridian, the vertical meridian being more curved than the horizontal meridian and wherein the radiating surface has a plurality of segments, wherein in particular a middle segment is longitudinally extended in the vertical direction and is formed as a toric surface. Outside the middle radiating segment, the adjacent surfaces are each formed as a toric surface.
- the light sources of a row are each formed as a chip of an RGB light-emitting diode (RGB light-emitting diode).
- a plurality of lenses on a lens carrier unit preferably at regular intervals from each other, are arranged.
- a plurality of RGB LEDs are provided, which are each associated with a lens on the lens carrier unit.
- the RGB LEDs are also arranged at regular intervals.
- the at least one lens or the lenses and / or the lens carrier unit made of plastic, in particular polycarbonate or polymethylmethacrylate (PMMA), are produced.
- the lens or the lenses are preferably arranged in each case in a recess of a diaphragm, wherein in particular the emission side or the viewer side of the diaphragm is black.
- the object is achieved by a display field, in particular for a traffic sign or variable message signs, wherein the display panel is formed with an optical assembly, as described above.
- the object is achieved by a traffic sign, in particular variable message signs, with an optical display field, in particular for road users, wherein the display panel has at least one optical assembly as described above. Accordingly, reference is likewise made to the above statements.
- Fig. 1 a) to 1 e) show schematically different views of a lens for an optical assembly of a display field of a variable traffic sign according to a first embodiment
- Fig. 2a) to 2e) schematically different views of a lens for an optical assembly of a display panel of a variable traffic sign according to a second embodiment
- Fig. 3a) to 3f) schematically different views of a lens for an optical assembly of a display panel of a variable traffic sign according to a third embodiment
- Fig. 4a) to 4f) schematically different views of a lens for an optical assembly of a display panel of a variable traffic sign according to a fourth embodiment.
- FIGS. 1 to 4 each show different views of a lens 10 for an optical assembly of a display panel for a variable traffic sign, each in different representations for different embodiments of the lens 10.
- Fig. 1 a a front view of the lens 10 is shown.
- Fig. 1 b) shows a cross section through the lens 1 0 according to the in Fig. 1 a) drawn Thomasl inie BB, while in FIG. 1 c) a cross section through the lens 1 0 according to the in Fig. 1 a) drawn section line CC is shown.
- FIG. 1 d shows a perspective view of the lens 1 0.
- FIG. 1 e shows a further front view of the lens 10 with a schematically drawn light-emitting diode 14, which is arranged behind the lens 10.
- the lens 10 has a light entry side 1 2, incident on the light from an RGB LED 14 on the lens 1 0, by means of which the incident light of the light emitting diode 14 is directed to a light exit side 16 with a radiating surface.
- the light inlet side 1 2 is in this case formed cone-shaped, wherein in particular in one embodiment, the conical light entrance side 1 2 is formed as a tapered Freiformasphot.
- the conical light entrance side 1 2 surrounded by a prism ring 1 8, wherein the surface of the conical light entrance side 1 2 and the light entrance side 12 facing prism surface of the prism ring. 1 8 are preferably arranged at an obtuse angle to each other. This results between the prism surface of the prism ring 1 8 and the conical light entrance side 1 2 an elliptical or circular ring.
- the lens 10 is made, for example, of plastic, preferably polycarbonate or PMMA, so that the lens 10 forms a light-transparent optical body with an optical axis 22.
- the lens 10 has a cylindrical optical waveguide section between the light entry side 12 and the light exit side 16 (see FIG. 1 c)).
- the optical axis of the abstract optics to the optical axis 22 of the lens 1 0 at an angle> 0 ° or 0 ° is aligned.
- the optical axis 22 of the lens 1 0 is in this case aligned horizontally, wherein the optical axis of the prismatic Abstrahloptik preferably in an angle of 2 ° to 1 5 ° to the optical axis 22 of the lens 1 0 is aligned.
- the cone-like collecting optics on the light entry side 12 has a horizontal peak line 20 in a middle region and in the region of the vertex.
- the RGB light-emitting diode 14 has three light-generating chips 14.1, 14.2, 14.3, wherein the optical axes 1 5.1, 5.3 of the two outer light-generating chips 14.1, 14.3 are aligned parallel to the optical axis 22 of the lens 1 0.
- the optical axis 1 5.2 of the central light-generating chip 14.2 is collinear with the optical axis 22 of the lens 1 0.
- the light-generating chips 14.1 to 14.3 are arranged side by side at constant distances from each other on an axis 24 which is perpendicular to the optical axis 22 and to the optical axes 1 5.1, 1 5.2, 1 5.3 of the light-generating chips 14.1, 14.2, 14.3.
- the in Fig. Illustrated lens 1 0 has at the light entrance side 1 2 due to the formation of a crest line 20 a focus line 21, wherein the light emitting diode 1 4 is arranged at a distance from the light entrance side 12 of the lens 1 0, so that the focal line 21 of the lens. 1 0 is collinear to the axis 24, along which the light-generating chips 14.1, 14.2, 14.3 of the LED 14 are arranged.
- the light entrance side has 1 2 in the middle In the area of a gable roof-like shape 23, which is arranged between two semi-conical molds 25.1, 25.2.
- FIG. 2a) and 2e) each show a front view of the lens 1 0.
- FIG. 2b) is a schematic cross-section through the lens 10 according to the embodiment shown in FIG. 2a) drawn line B-B, wherein the area designated Z additionl I shown in an enlarged view.
- Fig. 1 c) shows a perspective view with view of the light entry side 1 2 of the lens 1 0, while in FIG. 2d) is a perspective view of the lens 1 0 with the light exit side 1 6 is shown.
- the lens 1 0 has at the light entrance side 1 2 a plurality of side by side and at regular intervals to each other arranged vertices 26.1, 26.2, 26.3 (see enlarged view in Fig. 2b).
- the light entry side 12 is formed with three aspherical segments 29.1, 29.2, 29.3, wherein the segments 29.1, 29.2, 29.3 are arranged horizontally next to one another.
- the formed segments 29.1, 29.2, 29.3 have optical axes 28.1, 28.2, 28.3 which are collinear with the optical axes of the light-generating chips 14.1, 14.2, 14.3 of the light-emitting diodes.
- the central optical axis 28.2 is in this case collinear with the optical axis 22 of the lens 1 0.
- the collection optics having a plurality of vertices 26.1 to 26.3 at the light entry side 1 2, for each segment 29.1, 29.2, 29.3 a respective focus 30.1, 30.2, 30.3 formed, wherein the light-generating chips 14.1, 14.2, 14.3 in the focus 30.1, 30.2 and 30.3 are each.
- the emission surface is segmented in three parts (cf., Fig. 2d)), wherein the light exit side 16 is formed with a toric radiating surface in the central region.
- Fig.3a a front view of the lens according to a third embodiment.
- Fig.3b shows a cross section through the lens according to the cut line B-B drawn in Fig. 1a). Furthermore, a cross-section according to the section line C-C shown in FIG. 3a) is shown in FIG. 3c).
- a rear view of the lens 10 with the light entrance side 12 is shown in Fig. 3d), while in Fig. 3e) a front perspective view of the lens 10 is shown.
- Fig. 3f is also a further front view of the lens arranged behind light emitting diode 14 is shown.
- the light entrance side 12 of the lens 10 shown in FIGS. 3a) to 3f) corresponds to the light entrance side 12 of the lens 10 shown in FIG. 2.
- the lens 10 has a prismatic light exit side at the light exit side 16 the light exit side 16 is curved in the vertical direction.
- FIG. 4 a shows a front view of the lens according to a fourth exemplary embodiment.
- FIG. 4 b) shows a cross section through the lens according to the section line BB drawn in FIG. 1 a). Furthermore, a cross-section according to the section line CC shown in FIG. 4a) is shown in FIG. 4c).
- FIG. 4 d) a rear view of the lens 10 with the light entry side 12 is shown, while in FIG. 4 e) a perspective front view of the lens 10 is shown.
- Fig. 4f a further front view of the lens with light-emitting diode 14 arranged behind it is also shown.
- Fig. 4a) to 4f) shown lens 1 has in comparison to the embodiments in FIG. 2 and 3 a plan prismatic light exit side 1 6 (see Fig. 4c)).
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017120582.9A DE102017120582A1 (de) | 2017-09-07 | 2017-09-07 | Optische Baugruppe eines Wechselverkehrszeichens und Wechselverkehrszeichen |
PCT/EP2018/073232 WO2019048310A1 (de) | 2017-09-07 | 2018-08-29 | Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3679295A1 true EP3679295A1 (de) | 2020-07-15 |
Family
ID=63708263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18779199.1A Withdrawn EP3679295A1 (de) | 2017-09-07 | 2018-08-29 | Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3679295A1 (de) |
DE (1) | DE102017120582A1 (de) |
WO (1) | WO2019048310A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT500056B8 (de) | 1998-01-19 | 2007-02-15 | Swarco Futurit Verkehrssignals | Optikelement für verkehrszeichen, anzeigetafeln oder dgl. |
AT500013B1 (de) * | 2003-01-31 | 2006-10-15 | Swarco Futurit Verkehrssysteme | Optikelement für wechselverkehrszeichen |
DE202004018810U1 (de) | 2004-12-03 | 2005-03-03 | Müller, Uwe | Wechselverkehrszeicheneinrichtung |
EP3326017A1 (de) * | 2015-07-22 | 2018-05-30 | Adolf Nissen Elektrobau GmbH + Co.KG | Optische baugruppe eines wechselverkehrszeichens und wechselverkehrszeichen |
FR3041738B1 (fr) * | 2015-09-28 | 2020-01-17 | Valeo Vision | Element optique primaire pour module lumineux de vehicule automobile |
PL415364A1 (pl) * | 2015-12-17 | 2017-06-19 | Instytut Optyki Stosowanej Im. Prof. Maksymiliana Pluty | Układ optyczny do rozsyłu światła z pojedynczego piksela tablicy znaków drogowych o zmiennej treści |
-
2017
- 2017-09-07 DE DE102017120582.9A patent/DE102017120582A1/de not_active Ceased
-
2018
- 2018-08-29 EP EP18779199.1A patent/EP3679295A1/de not_active Withdrawn
- 2018-08-29 WO PCT/EP2018/073232 patent/WO2019048310A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019048310A1 (de) | 2019-03-14 |
DE102017120582A1 (de) | 2019-03-07 |
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