WO2017012664A1 - Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables - Google Patents

Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables Download PDF

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Publication number
WO2017012664A1
WO2017012664A1 PCT/EP2015/066790 EP2015066790W WO2017012664A1 WO 2017012664 A1 WO2017012664 A1 WO 2017012664A1 EP 2015066790 W EP2015066790 W EP 2015066790W WO 2017012664 A1 WO2017012664 A1 WO 2017012664A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
lens
light
optical assembly
light source
Prior art date
Application number
PCT/EP2015/066790
Other languages
German (de)
English (en)
Inventor
Kai Freund
Rolf Ackermann
Original Assignee
Adolf Nissen Elektrobau Gmbh + Co. Kg
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.)
Filing date
Publication date
Application filed by Adolf Nissen Elektrobau Gmbh + Co. Kg filed Critical Adolf Nissen Elektrobau Gmbh + Co. Kg
Priority to PCT/EP2015/066790 priority Critical patent/WO2017012664A1/fr
Priority to EP15742219.7A priority patent/EP3326017A1/fr
Publication of WO2017012664A1 publication Critical patent/WO2017012664A1/fr

Links

Classifications

    • 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
    • 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
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • 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
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
    • G08G1/143—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces inside the vehicles
    • 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]

Definitions

  • the invention relates to an optical assembly for a display field having at least one light source, in particular a display field of a traffic sign or 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.
  • U 1 discloses a variable traffic signaling device for displaying a traffic sign having luminous elements arranged in a matrix, wherein 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 can be displayed simultaneously for driving the luminous elements are .
  • Giveawayl 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 a compact optical assembly for a display panel, in particular a display panel of a traffic sign, where it should be possible light with a defined intensity and defined Win angle to a viewer h in to broadcast.
  • an optical assembly for a display field having at least one light source, in particular a display panel of a traffic sign or a variable traffic sign, with at least one lens for the at least one light source, wherein the lens is formed as an optical body with an optical, preferably horizontal, axis is and the optical body on its light source facing Lichtein- the optical body on a light exit side facing away from the light source has a prismatic abstraction, wherein the optical axis of the optical body and the optical axis of the prismatic radiation are aligned at an angle greater than 0 ° to each other ,
  • the optical assembly comprises an optical body as a light guide having on the light source side facing the light collection side and on the light exit side, which faces the viewer, a prismatic, preferably toric, Abstrahloptik has, is a compact, einteil ige lens provided, it is possible that by the compact lens the light emitted from a light source, such as a light emitting diode, in a large beam angle is focused by the collection optics and after passing through the optical body (as a light guide) by means of the prismatic Abstrahloptik to a Viewer is emitted with defined intensity in defined angles.
  • a light source such as a light emitting diode
  • the light is radiated sideways I and up or down towards the viewer. This makes it possible that the light is directed in a preferred direction.
  • a light-emitting diode As a light source for the optical assembly, a light-emitting diode (LED) is preferably provided, which is arranged at the light entrance side of the lens at a predetermined distance.
  • LED light-emitting diode
  • a development of the optical assembly is characterized in that the prismatic emission surface by means of an aspherical lens surface or by means of a toric Lens surface is formed, wherein the optical axis of the aspherical or toric lens or Linsenf kaue is aligned at an acute angle to the optical axis of the optical body.
  • the prismatic radiating surface is formed as a toric surface or lens surface with a vertical meridian and a horizontal meridian, wherein the vertical meridian is more curved than the horizontal meridian. This ensures that in the vertical plane of the radiation angle is smaller than in the horizontal plane.
  • the radiated light is preferably radiated obliquely upward or downward toward a viewer.
  • the angle between the optical axis of the optical body and the optical axis of the prismatic abstract is between 0.5 ° and 20.0 °, preferably between 0.5 ° and 1, 5.0 ° ,
  • the light source facing collection optics of the lens is cone-shaped, which is emitted from a light source of the optical assembly, for example an LED, light bundled by collecting optics to the emitting surface or coupled into the lens and in the optical body.
  • the collection optics preferably regular, are designed as free-form spheres, such that the light emitted by the light source is diffracted by means of the collection optics to the emission surface or is.
  • the optical assembly is characterized in that the collection optics, which is designed in particular as a free-form sphere, is surrounded by an outer prism ring. This results in a trough-like depression on the light entry side of the lens.
  • the prism ring ensures that, for example, when sunlight is irradiated on the emission surface, the incoming sunlight is kept away from the light source, for example an LED, whereby the incident sunlight is conducted in the lens such that it is essentially the light source , in particular LED, does not hit and is not reflected by the light source, whereby the so-called phantom light effect due to the prism ring is avoided or reduced or suppressed.
  • the optical body on the side facing the light source has a, preferably first boundary with a predetermined wall thickness, in particular the boundary of the collecting optics or the prism ring is discontinued, and / or that the optical body on the side facing away from the light source, ie. Light exit side, one, preferably second boundary having a predetermined wall thickness, wherein in particular the boundary is offset from the radiating surface.
  • a preferred embodiment of the optical assembly is characterized in that a plurality, preferably one-piece, lenses are arranged on a lens carrier unit, preferably at regular intervals from each other.
  • each optical body lenses on the lens carrier unit formed on the light input side facing the light input side with a collection optics for the incoming light and on the side facing away from the light source exit side each a prismatic Abstrahloptik is provided each of the optical axes of the optical bodies of the lenses and the optical axes of the prismatic Abstrahloptiken are aligned at an angle greater than 0 ° to each other.
  • the lenses are of identical construction on the lens carrier unit. This makes it possible to arrange the lenses in a cluster or a matrix or an array during the production of the optical assembly.
  • 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 lenses and the lens carrier unit are made of the same plastic as a one-piece component.
  • an embodiment of the optical assembly is characterized in that a light source, in particular in each case a light-emitting diode (LED), is arranged on the light entry side of the at least one lens or on the light entry sides of the lenses.
  • a light source in particular in each case a light-emitting diode (LED)
  • LED light-emitting diode
  • the light sources are also arranged at regular intervals on a carrier unit, whereby the manufacture of the optical assembly with a carrier Gerein unit with the light sources or light-emitting diodes and the lens carrier unit is simplified with the lenses according to the invention.
  • the lens or the lenses are arranged in each case in a recess of a diaphragm.
  • a diaphragm is provided in order to produce a high contrast, wherein the diaphragm is preferably black, in particular on the emission side or the viewer side.
  • 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 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) schematically different views of a lens for an optical assembly of a display panel 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 3c) different views of an arrangement of a plurality of compact lenses and schematically a cross section through a see assembly of a display panel
  • FIG. 1 and 2 are each different views of a lens 1 0 for an optical assembly of a display panel are shown in different representations, in FIG. 1 and 2 different embodiments of the lens 1 0 are shown.
  • Fig. 1 a a front view of the lens 10 is shown.
  • Fig. 1 b) shows a plan view of the lens 10, while in FIG. 1 c) a cross section through the lens 1 0 is shown.
  • the Fig. 1 d) and 1 e) show because perspective views of the lens 1 0.
  • the lens 10 has on the light entrance side, incident on the light from a light source such as an LED on the lens 10, a conical central collection optics with a free-form sphere 1 2, by means of which the incident light of the light source to the light exit side with a radiating surface 14 is headed.
  • the conical Freiformasphotre 1 2 is part of a collection optics.
  • the Freiformasphotre 1 2 is surrounded on the light entrance side of a prism ring 1 6, wherein the surface of the conical Freiformasphot prism surface are preferably arranged in an obtuse angle to each other. This results between the prism surface and the free-form sphere 1 2 a circular ring on the light entrance side of the lens 1 0th
  • the lens 10 is also made, for example, of plastic, preferably polycarbonate or PMMA, so that the lens forms a light-transparent optical body 18 having an optical axis 24.
  • the optical body 18 in this case has a cylindrical light guide part.
  • FIG. 2a schematically illustrated embodiment of a lens 1 0 for an optical assembly of a display panel of a variable traffic sign is shown in FIG. 2a) shows a front view of the lens 10.
  • Fig. 2b) shows a plan view of the lens 1 0.
  • FIG. 2c) shows a side view of the lens 10.
  • the Fig. 2d) and 2e) show perspective views of the lens 10, respectively.
  • the optical body 1 8 an outer sheath 26, resulting in a remote boundary of the optical body 18 on the light entrance side and on the light exit side.
  • the radiating surface 14 of the lens 10 directed to the viewer at the light exit side is designed as a toric surface with a vertical meridian MV and a horizontal meridian MH, wherein in particular the vertical meridian MV is more strongly curved than the horizontal meridian MH.
  • the radiation angle on the light exit side in the vertical direction is caused to be smaller than the radiation angle in the horizontal plane.
  • the optical axis 24 of the abstract optics is tilted in the vertical to the, preferably horizontal, optical axis 20 of the lens 10, the light radiated from the emission surface 14 is emitted, for example, downwards to a viewer.
  • the lens 1 0 for an optical assembly of a variable traffic sign, since the light is directed by means of the lens 10 according to the invention directed downwards in the direction of the road and emitted in a distributed manner from an elevated variable message sign over a road or the like.
  • the sunlight within the optical body 1 8 is deflected away from the light source by incident sunlight on the radiating surface 24, thereby reducing or avoiding possible phantom effects by reflection of sunlight become .
  • Fig. 3 shows, in various views, an arrangement of a plurality of lenses 10 according to the invention on a lens carrier 30, wherein the lenses are arranged at regular intervals on the lens carrier 30.
  • FIG. 3a shows a plan view of the arrangement, while in FIG. 3b) is a plan view and in FIG. 3c is a side view.
  • the lenses 10 and the lens carrier 30 are in one piece, i. E. manufactured as a component, wherein the basic shape of the lens carrier 30 is preferably square or rectangular.
  • other basic forms of the lens carrier 30 are possible within the scope of the invention.
  • Positional bodies 32 are also provided on the rear side of the lens carrier 30 in order to simplify the lens carrier 30 in cooperation with a carrier for light sources on which LEDs are arranged, for example, in the manufacture of optical assemblies 40.
  • FIG. 4 schematically shows a cross section through an optical assembly 40, wherein the optical assembly 40 comprises a lens carrier 30 with a plurality of lenses 10, as shown in FIG. 3, has.
  • the optical assembly 40 is part of a display field of a schematically designated variable traffic sign WVZ.
  • the optical assembly 40 further has on the front side facing a viewer, a diaphragm 42, wherein the aperture 42 corresponding recesses 44 for the lenses 1 0 has.
  • the aperture 42 is black on its surface.
  • a circuit board 46 is arranged, wherein on the board 46 corresponding to the arrangement of the lenses 1 0 at regular intervals each have a light-emitting diode (LED) 50 is arranged for each lens 1 0.
  • the LEDs 50 are each arranged opposite the tip of the free formasphere 1 2 of the lenses 10 at a predetermined distance.
  • a screw 52 is provided, by means of which the further elements are screwed together.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne entre autres un ensemble optique (40) pour un champ d'affichage comprenant au moins une source de lumière, en particulier pour un champ d'affichage d'un panneau de signalisation (WVZ) ou d'un panneau de signalisation à messages variables (WVZ), comprenant au moins une lentille (10) pour l'au moins une source de lumière. La lentille (10) est réalisée sous forme de corps optique (18) présentant un axe optique (20) de préférence horizontal, le corps optique (18) étant réalisé, sur son côté d'entrée de lumière tourné vers la source de lumière, avec une optique collectrice (12) pour la lumière entrante, le corps optique (18) comprenant, sur un côté de sortie de lumière opposé à la source de lumière, une optique de rayonnement (14) prismatique, et l'axe optique (20) du corps optique (18) et l'axe optique (24) de l'optique de rayonnement (14) prismatique étant orientés l'un par rapport à l'autre suivant un angle supérieur à 0° (> 0°).
PCT/EP2015/066790 2015-07-22 2015-07-22 Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables WO2017012664A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2015/066790 WO2017012664A1 (fr) 2015-07-22 2015-07-22 Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables
EP15742219.7A EP3326017A1 (fr) 2015-07-22 2015-07-22 Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/066790 WO2017012664A1 (fr) 2015-07-22 2015-07-22 Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables

Publications (1)

Publication Number Publication Date
WO2017012664A1 true WO2017012664A1 (fr) 2017-01-26

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Application Number Title Priority Date Filing Date
PCT/EP2015/066790 WO2017012664A1 (fr) 2015-07-22 2015-07-22 Ensemble optique d'un panneau de signalisation à messages variables et panneau de signalisation à messages variables

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Country Link
EP (1) EP3326017A1 (fr)
WO (1) WO2017012664A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019048310A1 (fr) * 2017-09-07 2019-03-14 Adolf Nissen Elektrobau Gmbh + Co. Kg Ensemble optique d'un panneau de signalisation routière variable et panneau de signalisation routière variable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977689A (en) * 1928-09-25 1934-10-23 Muller Paul Optical system
JP2002183891A (ja) * 2000-12-15 2002-06-28 Shingo Denzai Kk 交通信号灯
EP1528527A1 (fr) * 2003-10-30 2005-05-04 Centro Ricerche Plast-Optica S.r.l. Dispositif lumineux, en particulier panneau lumineux pour signalisation routière ou informations au public, ou une lampe pour véhicule automobile.
DE202009009763U1 (de) * 2008-12-15 2009-10-15 CREATE ELECTRONIC OPTICAL CO., LTD., Zhonghe City Optische LED-Linse und Beleuchtungsvorrichtung derselben

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5636057A (en) * 1995-02-10 1997-06-03 Ecolux Inc. Prismatic toroidal lens and traffic signal light using this lens
US5813743A (en) * 1995-03-27 1998-09-29 Fuji Photo Film Co., Ltd. Lighting unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977689A (en) * 1928-09-25 1934-10-23 Muller Paul Optical system
JP2002183891A (ja) * 2000-12-15 2002-06-28 Shingo Denzai Kk 交通信号灯
EP1528527A1 (fr) * 2003-10-30 2005-05-04 Centro Ricerche Plast-Optica S.r.l. Dispositif lumineux, en particulier panneau lumineux pour signalisation routière ou informations au public, ou une lampe pour véhicule automobile.
DE202009009763U1 (de) * 2008-12-15 2009-10-15 CREATE ELECTRONIC OPTICAL CO., LTD., Zhonghe City Optische LED-Linse und Beleuchtungsvorrichtung derselben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3326017A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019048310A1 (fr) * 2017-09-07 2019-03-14 Adolf Nissen Elektrobau Gmbh + Co. Kg Ensemble optique d'un panneau de signalisation routière variable et panneau de signalisation routière variable

Also Published As

Publication number Publication date
EP3326017A1 (fr) 2018-05-30

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