EP3789657A1 - Aussenleuchte - Google Patents

Aussenleuchte Download PDF

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Publication number
EP3789657A1
EP3789657A1 EP19290077.7A EP19290077A EP3789657A1 EP 3789657 A1 EP3789657 A1 EP 3789657A1 EP 19290077 A EP19290077 A EP 19290077A EP 3789657 A1 EP3789657 A1 EP 3789657A1
Authority
EP
European Patent Office
Prior art keywords
luminaire
sensor
light output
light
road
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Withdrawn
Application number
EP19290077.7A
Other languages
English (en)
French (fr)
Inventor
Florian Rocard
Maxime Perdu
Yann LISSILLOUR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZG Lighting France SAS
Original Assignee
ZG Lighting France SAS
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 ZG Lighting France SAS filed Critical ZG Lighting France SAS
Priority to EP19290077.7A priority Critical patent/EP3789657A1/de
Publication of EP3789657A1 publication Critical patent/EP3789657A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements characterised by the overall shape of the two-dimensional [2D] array
    • F21Y2105/16—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements characterised by the overall shape of the two-dimensional [2D] array square or rectangular, e.g. for light panels
    • 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 outdoor luminaire.
  • the invention further relates to a method for operating a luminaire.
  • CIE Commission Internationale de l'Eclairage
  • guidelines and standards for road lighting are provided in order to help designers achieve these purposes, and, to do so, they provide quantitative recommendations for the appropriate level (luminance or illuminance), color (or other characteristic derived from the spectral power distribution (SPD)) and spatial distribution of light.
  • SPD spectral power distribution
  • a lighting class is defined by a set of photometric requirements aiming at the visual needs of certain road users in certain types of road areas under specified environmental conditions.
  • M classes for areas intended for motorized traffic
  • C classes for conflict areas
  • P classes for pedestrian and low speed areas.
  • the invention relates to an outdoor luminaire designed to illuminate a road or street surface both in dry or wet conditions.
  • the luminaire comprises at least one preferably LED based (white) lighting module, .
  • a sensor configured to detect whether the road or street surface to be illuminated is in a wet state or a dry state, and a control unit configured to adjust at least one light output characteristic of the white lighting module of the luminaire depending on an output of the sensor.
  • the senor is a reflectivity sensor.
  • the senor is a photocell.
  • the photocell comprises an optic configured to act as a light concentrator.
  • the senor is a camera.
  • control unit if configured to adjust the colour temperature (CT) of the at least one light output.
  • CT colour temperature
  • the luminaire further comprises a receiver configured to receive weather forecast information indicating wet or dry conditions and the control unit is configured to adjust the at least one light output of the luminaire depending on the received weather forecast conditions.
  • the at least one light output of the luminaire comprises a variable light distribution.
  • the at least one light output of the luminaire comprises a variable spectrum.
  • the at least one light output of the luminaire comprises a variable spectrum and variable light distribution.
  • the invention relates to a method for operating a luminaire, comprising detecting whether a surface to be illuminated is wet or dry, and adjusting at least one light output of the luminaire depending on an output of a sensor.
  • LED luminaire shall mean a luminaire with a light source comprising one or more LEDs. LEDs are well-known in the art, and therefore, will only briefly be discussed to provide a complete description of the invention.
  • the aspect of the present invention might contain integrated circuits that are readily manufacturable using conventional semiconductor technologies, such as complementary metal-oxide semiconductor technology, short "CMOS".
  • CMOS complementary metal-oxide semiconductor technology
  • the aspects of the present invention may be implemented with other manufacturing processes for making optical as well as electrical devices.
  • FIG. 1 an outdoor luminaire is shown according to an embodiment.
  • the outdoor luminaire 100 is designed to illuminate a road or street surface and comprises at least one preferably LED based lighting module 101, a sensor 102 configured to detect whether the road or street surface to be illuminated is in a wet state or a dry state, and a control unit 103 configured to adjust at least one light output characteristic of the lighting module of the luminaire 100 depending on an output of the sensor 102.
  • a single road lighting luminaire 100 at least two different LED modules are present.
  • One LED module is optimized for wet road conditions while the other one is optimized for dry road conditions.
  • the luminaire 100 is functionally connected with a road condition sensor 102, such as for example a photocell, a reflectivity sensor, camera, or with weather forecast information indicating wet for dry conditions.
  • a road condition sensor 102 such as for example a photocell, a reflectivity sensor, camera, or with weather forecast information indicating wet for dry conditions.
  • the luminaire 100 is set for the wet for dry road illumination conditions, respectively.
  • Fig. 2 shows the luminaire 100 according to an embodiment.
  • the luminaire 100 comprises the LED based lighting module 101.
  • the wet parameter or uniformity Uo should be checked on specific road surfaces, since it is representative of the wet condition. This is also linked to CIE characterized surfaces, which sort the different roads with two coefficients Q0 and S1 (obtained from many measurements).
  • the "clarity" coefficient Q0 indicates the capacity of the road to reflect the light in total. Weak Q0 surfaces need more flux than high Q0.
  • the S1 coefficient represents the "specularity", that is to say, the quantity of non-diffuse reflections that create a privileged direction with the reflected light. So the wet models get high S1 coefficients.
  • a wet road is very specular (mirror effect), and achieving sufficient uniformity Uo(wet) implies specific optical characteristics.
  • Fig. 3 shows a method 300 for operating a luminaire 100 according to an embodiment.
  • the method comprises the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP19290077.7A 2019-09-04 2019-09-04 Aussenleuchte Withdrawn EP3789657A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19290077.7A EP3789657A1 (de) 2019-09-04 2019-09-04 Aussenleuchte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19290077.7A EP3789657A1 (de) 2019-09-04 2019-09-04 Aussenleuchte

Publications (1)

Publication Number Publication Date
EP3789657A1 true EP3789657A1 (de) 2021-03-10

Family

ID=67997543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19290077.7A Withdrawn EP3789657A1 (de) 2019-09-04 2019-09-04 Aussenleuchte

Country Status (1)

Country Link
EP (1) EP3789657A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118946A (ja) * 1997-10-09 1999-04-30 Omron Corp 吹雪検知用センサおよびこのセンサを用いた吹雪検出装置
EP1510986A1 (de) * 2003-08-25 2005-03-02 Yamada Technica Corporation: Japan Highway Public Corporation Strassenoberflächen-Sensor und Überwachungssteuerungsverfahren von Strassenoberflächen
US20140239808A1 (en) * 2013-02-26 2014-08-28 Cree, Inc. Glare-reactive lighting apparatus
EP2779799A2 (de) * 2013-03-14 2014-09-17 ABL IP Holding LLC Adaptives optisches Verteilungssystem
WO2014147510A1 (en) * 2013-03-18 2014-09-25 Koninklijke Philips N.V. Methods and apparatus for information management and control of outdoor lighting networks
WO2014180647A1 (en) * 2013-05-07 2014-11-13 Koninklijke Philips N.V. Luminaire for road illumination with sensor.
WO2019068675A1 (en) * 2017-10-05 2019-04-11 Signify Holding B.V. LUMINAIRE AND LIGHTING METHOD

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118946A (ja) * 1997-10-09 1999-04-30 Omron Corp 吹雪検知用センサおよびこのセンサを用いた吹雪検出装置
EP1510986A1 (de) * 2003-08-25 2005-03-02 Yamada Technica Corporation: Japan Highway Public Corporation Strassenoberflächen-Sensor und Überwachungssteuerungsverfahren von Strassenoberflächen
US20140239808A1 (en) * 2013-02-26 2014-08-28 Cree, Inc. Glare-reactive lighting apparatus
EP2779799A2 (de) * 2013-03-14 2014-09-17 ABL IP Holding LLC Adaptives optisches Verteilungssystem
WO2014147510A1 (en) * 2013-03-18 2014-09-25 Koninklijke Philips N.V. Methods and apparatus for information management and control of outdoor lighting networks
WO2014180647A1 (en) * 2013-05-07 2014-11-13 Koninklijke Philips N.V. Luminaire for road illumination with sensor.
WO2019068675A1 (en) * 2017-10-05 2019-04-11 Signify Holding B.V. LUMINAIRE AND LIGHTING METHOD

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