EP3105498B1 - Tragbare lampe mit einer vorrichtung zur elektrischen steuerung der geometrie des elektrischen strahls - Google Patents
Tragbare lampe mit einer vorrichtung zur elektrischen steuerung der geometrie des elektrischen strahls Download PDFInfo
- Publication number
- EP3105498B1 EP3105498B1 EP15707057.4A EP15707057A EP3105498B1 EP 3105498 B1 EP3105498 B1 EP 3105498B1 EP 15707057 A EP15707057 A EP 15707057A EP 3105498 B1 EP3105498 B1 EP 3105498B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- portable lamp
- generated
- lamp according
- control
- light
- 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.)
- Not-in-force
Links
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 4
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- 229920000642 polymer Polymers 0.000 description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Images
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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/003—Controlling the distribution of the light emitted by adjustment of elements by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices
-
- 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
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
-
- 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
- F21Y2101/00—Point-like light sources
Definitions
- the present invention relates to the field of portable electric lamps and in particular a frontal portable lamp with an improved control of the management of the geometry of the light beam.
- FIG. 2 it is a headlamp comprising at least one light-emitting diode 11 of the LED type and an optical sensor 14 housed in its vicinity and intended to capture a signal representative of the light reflected by the surface of an object 16 illuminated by the lamp.
- a control circuit 13 provides a processing of this signal for the purpose of automatically regulating the power of the LED according to a predetermined threshold. In this way, automatic regulation of the light beam emitted by the lamp is performed without further manual action to adapt the lighting environment, while managing energy consumption.
- the present invention proposes to significantly improve this situation by proposing a new control device of the geometry of the beam perfectly adapted to these new needs appeared with the new functionalities likely to appear in the modern headlamps.
- WO 2007/080543 discloses a lamp module comprising at least one LED for light emission, and means for extracting and shaping the light generated by the LED, and a base for connection to a light device .
- the module comprises at least one switchable cell electrically adapted to receive the light emitted by the LED, which cell, in a first state, transmits the incoming light without substantially altering the light direction and, in a second state, alters the direction of the light. light when the light passes through the cell.
- WO 2007/007234 (KONINKL PHILIPS ELECTRONICS NV) describes a light module producing light with an electrically variable diffusing pattern.
- the object of the present invention is to propose a portable lamp structure, such as a frontal one, enabling easier control of the geometry of the light beam.
- Another object of the present invention is to provide a device for controlling the geometry of the beam of a portable lamp, reducing the manufacturing costs but also the size of the lamp.
- the electro-optical device may be a liquid crystal diffuser controlled either by a current or by a control potential.
- the pane consists of a PDLC film through which passes through said narrow beam, said PDLC film comprising polarization electrodes for receiving a control potential of the transparency of said film.
- control potential is generated from a manual controller.
- control potential is generated from information generated by a sensor capturing a fraction of the brightness reflected on an illuminated object.
- control potential is generated from information generated by an accelerometer-type sensor, thus allowing the control of long lighting when the user is running or jogging.
- control potential is generated from information generated by an image sensor.
- the portable lamp comprises communication means for receiving information from which is generated the control potential of the adjustable transparency.
- This information can come either from another communicating lamp - configured in master mode - or from a data processing device such as a mobile phone, a tablet etc ... likely to control the features of the portable lamp.
- the portable lamp is particularly suitable for producing a headlamp.
- the lamp comprises a light source 31 generating a light beam generated for example by means of one or more LEDs (s).
- the light source 31 may be provided with a primary optics for providing a first collimation so as to allow the formation of a rather narrow beam.
- a secondary optics 32 may be provided to improve collimation of the source as necessary and thus increase, as necessary, the narrow geometry of the beam.
- the lamp then comprises an electro-optical device 33 arranged in front of the light source, such as an electro-optical diffuser allowing a control electrical transparency / opacity, so as to control the geometry of the light beam generated by the LED (s).
- an electro-optical device 33 arranged in front of the light source, such as an electro-optical diffuser allowing a control electrical transparency / opacity, so as to control the geometry of the light beam generated by the LED (s).
- the electro-optical device 33 consists of a PDLC film (liquid crystals dispersed in dispersive liquid crystal polymers or polymers) which, as a person skilled in the art knows, consists of a particular embodiment of crystals. heterogeneously dispersed liquids within a polymer matrix.
- PDLC film liquid crystals dispersed in dispersive liquid crystal polymers or polymers
- This PDLC film can advantageously replace the glass usually disposed in front of the light source and protecting the latter, and comprises two polarization electrodes 34 and 35 for receiving a control signal, for example a control potential Vc generated by a control unit 36. .
- the portable lamp can, therefore, provide new features (ambient light - lantern - dawn simulator alarm clock).
- the invention thus solves very effectively a multitude of problems that arose in the development of an "electric zoom".
- the potential Vc is controlled via a member or manual switch actuated by the user of the lamp which can thus come to adjust - as desired - the scattering angle of the beam.
- the figure 4 illustrates a second embodiment of a lamp 100, supposedly frontal, combining the use of an electro-optical diffuser in a lamp type "dynamic".
- the lamp 100 comprises a power module 450 associated with a control module 400 and a light source 460 comprising one or more LEDs (s) provided, where appropriate its own focal system (not shown).
- the current supply of the LED diode 460 - via the conductors 461 - is carried out under the control of an information or a control signal 401 generated by the control module 200.
- the power module 450 specifically includes all the components conventionally encountered in an LED lighting lamp for the production of a high intensity light beam, and in general based on PWM Pulse Width Modulation (FIG. or Pulse Width Modulation in the Anglo-Saxon literature), well known to a person skilled in the art and similar to that found in class D audio circuits.
- This PWM modulation is controlled by means of the control signal 401.
- the term "signal” mentioned above refers to an electrical quantity - current or voltage - which makes it possible to cause the control of the power module 450, and in particular the PWM modulation used to supply power to the LED diode 460.
- control signal 401 any "control information", for example a logic information stored in a register and transmitted by any appropriate means to the power module 450 for the purpose of controlling the transmission power of the light beam.
- control information for example a logic information stored in a register and transmitted by any appropriate means to the power module 450 for the purpose of controlling the transmission power of the light beam.
- the two control modules 400 and power 450 are integrated within the same integrated circuit.
- control signal 401 when referring to a "control signal 401", one indistinctly includes the embodiments using an electrical control quantity - current or voltage - as well as the embodiments in which the control is performed by means of logical information transmitted within the power module 450. For this reason, we will speak here below without distinction of signal or command information.
- the switching components and circuits that make up the power module 450 - whether bipolar transistors, FET ( Field Effect Transistor ) or MOS ( Metal Oxide Semiconductor ) or MOSFET transistors - are well known. a person skilled in the art and the presentation will be deliberately lightened in this regard for the sake of brevity. In the same way, the reader will be invited to refer to the general works dealing with various aspects of PWM modulation.
- control module 400 comprises in particular a sensor 410 with its own focal optics, intended to capture a portion of the light reflected on an illuminated object, so as to generate useful information for the implementation of said lighting "Dynamic” or "reactive".
- This information produced by the sensor 410 is processed by the control module 400 so as to derive, by means of appropriate logic and analog circuits, a control potential Vc which is transmitted via conductors 471 appropriate to a PDLC film 470 so as to control the phenomenon of diffusion of the light beam passing through this film PDLC.
- control of the diffusion is such that in the absence of control voltage Vc, the diffusion operated by the PDLC film 470 is maximum, thus producing light rays in all directions (represented by the beam 473 on the figure 4 ).
- control module 400 when the control module 400 generates a significant potential Vc - of the order of 75 volts today but with the objective of lowering it under the value of 24 volts - the film PDLC will prove to be a transparency total or quasi-total, so that only a narrow beam 472 will be generated by the portable lamp.
- FIG. figure 5 A sensor accelerometer 420 is added to, or simply substituted for, the sensor 410.
- This accelerometer sensor is particularly useful for detecting a situation of large movements, for example when the wearer is running where it will be useful to control automatically, thanks to the The control unit 400 generates a narrower and longer beam.
- the figure 6 shows another example of a more sophisticated embodiment in which the lamp comprises an image sensor 430 such as that described in the patent application WO 2012/119756 dated 6 March 2012 , and allowing the control of the beam geometry from an image analysis from an image processor 435 shown in FIG. figure 6 .
- This image analysis leads, via an appropriate digital processing, to the generation of a suitable control potential Vc making it possible to pilot the diffusion of the PDLC film 470.
- the reader will refer more particularly to the developments described in this patent application for the particular embodiment of a portable lamp with such a sensor.
- the figure 7 shows another embodiment in which one adds, to the elements described in the embodiment of the figure 4 (and which keep for brevity the same reference numerals) a wireless communication unit 440, and in particular transmission / reception circuits for receiving a control information received from a device external to the lamp, said information serving to generate the control potential Vc of the electro-optical scattering device.
- the communication circuits are of the Bluetooth type or equivalent and allow an exchange of information between two portable lamps so as to allow a master / slave type control between the two lamps.
- the wireless communication circuits 440 are used to ensure data exchange between the portable lamp and an external data processing device, such as a mobile phone or a touch pad 500, which will thus be able to take advantage of all the processing power. available in these external devices, but also their communication features.
- an external data processing device such as a mobile phone or a touch pad 500
- This arrangement can be particularly advantageous since it will then become possible to use the large computing power available within these external equipment, and extended functionalities including communication, to come provide a fine and powerful adjustment of the geometry beam.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Claims (11)
- Tragbare, elektrische Lampe umfassend:- eine Lichtquelle, welche mindestens einen, vorzugsweise schmalen, Lichtstrahl erzeugt;- eine Glasplatte, die der Lichtquelle vorangestellt ist, wobei die Glasplatte eine durch ein elektrisches Signal angesteuerte elektro-optische Vorrichtung zur Erzeugung einer elektrisch verstellbaren Diffusion aufweist,dadurch gekennzeichnet, dass sie ferner umfasst:- einen Sensor (410), welcher beschaffen ist, einen Lichtanteil zu erfassen, der an einem Objekt reflektiert wird, das von der Lichtquelle beleuchtet wird;- eine Steuereinheit (400), die mit dem Sensor und der elektro-optischen Vorrichtung verbunden ist wobei die Steuereinheit (400) das elektrische Signal von dem reflektierten Licht erzeugt, das von dem Sensor erfasst wird.
- Tragbare Lampe nach Anspruch 1, dadurch kennzeichnet, dass die elektro-optische Vorrichtung ein Diffusionspolymer-Flüssigkristall ist, welcher von einem Strom angesteuert wird.
- Tragbare Lampe nach Anspruch 1, dadurch kennzeichnet, dass die elektro-optische Vorrichtung ein Diffusionspolymer-Flüssigkristall ist, welcher von einer Spannung angesteuert wird.
- Tragbare Lampe nach Anspruch 3, dadurch kennzeichnet, dass die Glasplatte einen PDLC-Film enthält, durch welchen der schmale Lichtstrahl hindurchgeht, wobei der DPLC-Film Vorspannungsanschlüsse aufweist, die zum Empfang einer Steuerspannung beschaffen sind, um die Transparenz des DPLC-Films zu steuern.
- Tragbare Lampe nach Anspruch 4, dadurch kennzeichnet, dass die tragbare Lampe aufweist:- die Lichtquelle umfasst mindestens eine LED, welche den schmalen Lichtstrahl erzeugt;- eine Stromquelle für die Stromversorgung der mindestens einen LED;- eine Steuereinheit zum Erzeugen einer Steuerspannung für das Steuern der Transparenz des DLPC-Films.
- Tragbare Lampe nach Anspruch 5, dadurch kennzeichnet, dass die Steuerspannung anhand einer Information erzeugt wird, die von einem Beschleunigungssensor erzeugt wird.
- Tragbare Lampe nach Anspruch 5, dadurch kennzeichnet, dass die Steuerspannung anhand einer Information erzeugt wird, die von einem Bildsensor erzeugt wird.
- Tragbare Lampe nach Anspruch 5, dadurch kennzeichnet, dass die Lampe Kommunikationsmittel enthält, und dass die Steuerspannung anhand einer Information erzeugt wird, die über die Kommunikationsmittel empfangen wird.
- Tragbare Lampe nach Anspruch 8, dadurch kennzeichnet, dass die Steuerspannung anhand einer Information erzeugt wird, die von einer anderen, im Master-Modus konfigurierten, Lampe empfangen wird und mit der tragbaren Lampe kommuniziert wird.
- Tragbare Lampe nach Anspruch 9, dadurch kennzeichnet, dass die Steuerspannung anhand einer Information erzeugt wird, die von einem Smartphone- oder Tablet-artigen Gerät erzeugt wird, welches über Drahtlos-Kommunikations-Kanäle kommuniziert.
- Tragbare Lampe nach einem der Ansprüche 1 bis 10, dadurch kennzeichnet, dass sie einen Scheinwerfer mit einer einzigen LED aufweist, der einen schmalen Lichtstrahl geringer als 10 Grad erzeugt, welcher mit Hilfe des Steuersignals in ein streuendes Licht transformierbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1400407A FR3017692A1 (fr) | 2014-02-14 | 2014-02-14 | Lampe portative comportant un dispositif de commande electrique de la geometrie du faisceau electrique |
| PCT/EP2015/053127 WO2015121429A1 (fr) | 2014-02-14 | 2015-02-13 | Lampe portative comportant un dispositif de commande electrique de la geometrie du faisceau electrique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3105498A1 EP3105498A1 (de) | 2016-12-21 |
| EP3105498B1 true EP3105498B1 (de) | 2018-12-26 |
Family
ID=51063490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15707057.4A Not-in-force EP3105498B1 (de) | 2014-02-14 | 2015-02-13 | Tragbare lampe mit einer vorrichtung zur elektrischen steuerung der geometrie des elektrischen strahls |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160258599A1 (de) |
| EP (1) | EP3105498B1 (de) |
| FR (1) | FR3017692A1 (de) |
| WO (1) | WO2015121429A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4124177A1 (de) | 2021-07-20 | 2023-01-25 | Reichhardt GmbH Steuerungstechnik | System zur innen- oder aussenbeleuchtung |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9665825B2 (en) | 2014-06-09 | 2017-05-30 | Cognitive Scale, Inc. | System for refining cognitive insights using cognitive graph vectors |
| EP3298432B1 (de) * | 2015-05-18 | 2019-07-10 | Lasermotive, Inc. | Mehrschichtiges sicherheitssystem |
| FR3041498A1 (fr) | 2015-09-21 | 2017-03-24 | Zedel | Lampe led dotee d'un dispositif de regulation de la luminosite |
| EP3510442B1 (de) * | 2016-09-08 | 2023-11-22 | LensVector Inc. | Flüssigkristallvorrichtung zur dynamischen strahlsteuerung |
| TWI769181B (zh) * | 2016-11-18 | 2022-07-01 | 美商聯思維公司 | 液晶動態束控制裝置和製造方法 |
| EP3330608B1 (de) | 2016-12-05 | 2021-03-31 | The Swatch Group Research and Development Ltd | Angeschlossene lampe und steuerverfahren der lampe |
| FR3064101B1 (fr) * | 2017-03-17 | 2019-11-01 | Eydi Technology | Dispositif pour emettre une alerte lumineuse, systeme de gestion d'alerte associe |
| US10942423B1 (en) * | 2017-06-16 | 2021-03-09 | Apple Inc. | Light source module with adjustable focus |
| EP3826432A1 (de) * | 2019-11-22 | 2021-05-26 | Oberalp Spa | Scheinwerfer mit al-einheit |
| EP4064792B1 (de) | 2021-03-25 | 2024-09-04 | Zedel | Stirnlampe, die mit einer verbesserten dynamischen beleuchtung ausgestattet ist |
| US11350506B1 (en) | 2021-05-03 | 2022-05-31 | Ober Alp S.P.A. | Adaptive illumination control via activity classification |
| CN118251967A (zh) * | 2021-11-10 | 2024-06-25 | 株式会社日本显示器 | 照明装置的控制装置 |
| JPWO2023153165A1 (de) * | 2022-02-08 | 2023-08-17 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004076226A2 (en) * | 2003-02-21 | 2004-09-10 | Gentex Corporation | Automatic vehicle exterior light control system assemblies |
| US20080198280A1 (en) * | 2005-07-08 | 2008-08-21 | Koninklijke Philips Electronics, N.V. | Light Module for Producing Light With a Scattering Pattern that is Electrically Variable and Use thereof as Multiple Purpose Light |
| EP1979672B1 (de) * | 2006-01-16 | 2017-09-13 | Philips Lighting Holding B.V. | Leuchtenmodul und beleuchtungsvorrichtung mit einem solchen leuchtenmodul |
| DE102007036697A1 (de) * | 2007-08-03 | 2009-02-05 | Lear Corp., Southfield | Optische Streuung eines Lichtstrahls |
| JP5227460B2 (ja) * | 2009-09-11 | 2013-07-03 | 照榮 片岡 | Led照明装置 |
| EP2783398B1 (de) * | 2011-11-23 | 2017-10-04 | Quarkstar LLC | Lichtemittierende vorrichtungen mit asymmetrischer lichtausbreitung |
| KR101520709B1 (ko) * | 2012-05-07 | 2015-05-15 | 엘지전자 주식회사 | 조명장치 및 조명장치의 제어방법 |
| US9170474B2 (en) * | 2012-06-21 | 2015-10-27 | Qualcomm Mems Technologies, Inc. | Efficient spatially modulated illumination system |
-
2014
- 2014-02-14 FR FR1400407A patent/FR3017692A1/fr active Pending
-
2015
- 2015-02-13 WO PCT/EP2015/053127 patent/WO2015121429A1/fr not_active Ceased
- 2015-02-13 EP EP15707057.4A patent/EP3105498B1/de not_active Not-in-force
-
2016
- 2016-05-16 US US15/155,439 patent/US20160258599A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4124177A1 (de) | 2021-07-20 | 2023-01-25 | Reichhardt GmbH Steuerungstechnik | System zur innen- oder aussenbeleuchtung |
| DE102021118773A1 (de) | 2021-07-20 | 2023-01-26 | Reichhardt Gmbh Steuerungstechnik | Beleuchtungssystem mit mehreren Leuchten |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3105498A1 (de) | 2016-12-21 |
| FR3017692A1 (fr) | 2015-08-21 |
| WO2015121429A1 (fr) | 2015-08-20 |
| US20160258599A1 (en) | 2016-09-08 |
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