IT9021577A1 - VEHICLE LIGHTING DEVICE - Google Patents

VEHICLE LIGHTING DEVICE Download PDF

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Publication number
IT9021577A1
IT9021577A1 IT021577A IT2157790A IT9021577A1 IT 9021577 A1 IT9021577 A1 IT 9021577A1 IT 021577 A IT021577 A IT 021577A IT 2157790 A IT2157790 A IT 2157790A IT 9021577 A1 IT9021577 A1 IT 9021577A1
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IT
Italy
Prior art keywords
high beam
lighting device
light
filter
fact
Prior art date
Application number
IT021577A
Other languages
Italian (it)
Other versions
IT9021577A0 (en
IT1243046B (en
Inventor
Christian Lietar
Gerhard Lindae
Jean-Francois Longchamp
Peter Perthus
Original Assignee
Bosch Gmbh Robert
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6390291&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IT9021577(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of IT9021577A0 publication Critical patent/IT9021577A0/en
Publication of IT9021577A1 publication Critical patent/IT9021577A1/en
Application granted granted Critical
Publication of IT1243046B publication Critical patent/IT1243046B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/125—Coloured light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/692—Shields, i.e. screens not creating an image meant to be projected
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/04—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out infrared radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Description

DESCRIZIONE DESCRIPTION

L'invenzione parte da un dispositi vo di illuminazione per veicoli del genere della rivendicazione The invention starts from a vehicle lighting device of the kind of the claim

Gli autoveicoli in maniera nota sono equipaggiati di proiettori per produrre luce anabbagliante e luce abbagliante. Quando è inserita la luce abbagliante viene illuminata una grande zona di visuale del conducente del veicolo, e tuttavia quando si verifica l'incontro di due veicoli è ne- . cessario disinserire la luce abbagliante, altrimenti verrebbe abbagliato il conducente del veicolo che di volta in volta proviene dalla direzione opposta. Dalla luce anabbagliante, inserita al momento dell'incontro dei veicoli, viene illuminata soltanto una zona di visuale del conducente del veicolo sostanzialmente più piccola, cosicché gli ostacoli eventualmente presenti nella sua direzione di marcia vengono illuminati solo in ritardo e riconosciuti dal conducente del veicolo. Vehicles are known to be equipped with headlamps to produce low beam and high beam. When the high beam is switched on, a large area of vision of the driver of the vehicle is illuminated, and yet when two vehicles meet it is not. It is necessary to switch off the high beam, otherwise the driver of the vehicle coming from the opposite direction would be dazzled. From the dipped beam, which is switched on when the vehicles collide, only a substantially smaller area of vision of the vehicle driver is illuminated, so that any obstacles in his direction of travel are illuminated only late and recognized by the driver of the vehicle.

Vantaggi dell'invenzione Advantages of the invention

Il dispositivo di illuminazione secondo l'invenzione con le caratteristiche della rivendicazione 1presenta invece il vantaggio comsistente nel fatto che il conducente del veicolo può riconoscere tempestivamente sull'alparecchio indicatore anche ostacoli distanti quando è inserita la luce anabbagliante, senza che venga abbagliato un conducente di veicolo che proviene dalla direzione opposta· The lighting device according to the invention with the characteristics of claim 1, on the other hand, has the advantage of the fact that the driver of the vehicle can promptly recognize even distant obstacles on the display unit when the low beam is switched on, without dazzling a vehicle driver. coming from the opposite direction

Nelle sottorivendicazioni sonoi caratterizzati vantaggiose esecuzioni ed ulteriori i sviluppi del dispositivo di illuminazione. Con la i rivendicazione 3 la sorgente luminosa del proiettore della luce abbagliante viene utilizzata per produrre la luce non visibile,cosicché a tale scopo non è necessaria alcuna particolare sorgente luminosa.Con. Advantageous embodiments and further developments of the lighting device are characterized in the sub-claims. With claim 3 the light source of the high beam headlamp is used to produce the invisible light, so that no special light source is required for this purpose.

1'esecuzione del filtro secondo la rivendicazione 5 con contemporaneamente modesta grandezza costruttiva del filtro, dal filtro viene rilevata approssimativamente l'intera luce emessa dalla sorgente luminosa. Con la rivendicazione 6 si è ottenuto che il filtro disturba soltanto poso il percorso dei raggi del prò iettore della luce abbagliante, quando è-inserita la luce abbagliante, In the execution of the filter according to claim 5 with at the same time modest construction size of the filter, approximately the entire light emitted by the light source is detected by the filter. With claim 6 it has been obtained that the filter only disturbs the path of the rays of the high beam headlamp when the high beam is switched on,

Disegno Drawing

Uh esempio di realizzazione dell'invenzione è rappresentato nel disegno ed illustrato dettagliatamente nella seguente descrizione. An exemplary embodiment of the invention is shown in the drawing and illustrated in detail in the following description.

In particolare: In particular:

la figura 1 mostra in vista anteriore un veicolo equipaggiato di un dispositivo di illuminazione secondo l'invenzione, Figure 1 shows a front view of a vehicle equipped with a lighting device according to the invention,

la figura 2 mostra un proiettore della luce abbagliante del veicolo della figura 1, in sezione longitudinale, Figure 2 shows a headlamp of the high beam of the vehicle of Figure 1, in longitudinal section,

la figura 3 mostra il proiettore della luce abbagliante come sezione longitudinale lungo la linea III-III in figura 2, figure 3 shows the high beam headlamp as a longitudinal section along line III-III in figure 2,

la figura 4 mostra parte del dispositivo di illuminazione dal punto di vista del conducente del veicolo, e Figure 4 shows part of the lighting device from the point of view of the driver of the vehicle, and

la figura 5 mostra il veicolo nella vista laterale. figure 5 shows the vehicle in the side view.

Descrizione dell'esempio di realizzazione Description of the example of realization

un autoveicolo rappresentato in figura 1 è equipaggiato di un dispositivo di illuminazione, che in maniera nota presenta due proiettori 8 per produrre la luce anabbagliante, chiamati brevemente proiettori della luce anabbagliante, e due proiettori 9 per produrre la luce abbagliante, chiamati brevemente proiettori della luce abbagliante. I proiettori 9 della luce abbagliante in maniera nota presentano ciascuno -un riflettore 10, una sorgente luminosa 11, inserita nella sua zona di sommità, e un disco luminoso 12 coprente l'apertura-di uscita della luce del riflettore 10. Un filtro 13 eseguito a forma di manicotto è disposto all'interno del proiettare 9 della luce abbagliante su un supporto 14. Il supporto 14 è guidato scorrevole su un profilatoi 17 fissato al fondo 16 del proiettore 9 della luce abbagliante. Il profilato 17 si estende parallelamente all'asse ottico 18 del proiettore 9 della luce abbargliante. Effettuando uno spostamento del supporto 14 verso la sorgente luminosa 11 il filtro 13 viene cal zato sulla sorgente luminosa n*.Lo spostamento del supporto 14 può essere attuato ad esempio,per mezzo . di un dispositivo di impostazione a-motore elettrico oppure per mezzo di un dispositivo di impostazione pneumatico idraulico. Il filtro 13 è adatto ad assorbire la parte visibile della luce emessa dalla sorgente luminosa 11 oppure a rifletterla e a-far passare soltanto ad esempio luce nella gamma di linghez. za d'onda dell'infrarosso, brevemente luce*infrarossa. a motor vehicle represented in figure 1 is equipped with a lighting device, which in a known manner has two headlamps 8 to produce the low beam, briefly called low beam headlamps, and two headlamps 9 to produce the high beam, briefly called light projectors dazzling. The headlights 9 of the high beam in a known manner each have a reflector 10, a light source 11, inserted in its top region, and a luminous disc 12 covering the light exit opening of the reflector 10. A filter 13 made in the form of a sleeve is arranged inside the projecting 9 of the high beam on a support 14. The support 14 is slidably guided on a profile 17 fixed to the bottom 16 of the headlight 9 of the high beam. The section 17 extends parallel to the optical axis 18 of the headlight 9 of the glaring light. By moving the support 14 towards the light source 11, the filter 13 is placed on the light source n *. The movement of the support 14 can be effected, for example, by means. by an electric motor-driven setting device or by means of a hydraulic pneumatic setting device. The filter 13 is suitable for absorbing the visible part of the light emitted by the light source 11 or for reflecting it and passing only, for example, light in the linghez range. waveform of infrared, briefly infrared light *.

Quando è inserita la luce abbagliante il filtro 13 si trova nellapposizione rappresentata in figura 2 e pertanto è inattivo. Commutando dalla luce abbagliante alla luce anabbagliante oppure inserendo la luce anabbagliante rimane in funzione la sorgente luminosa 11 del proiettore 9 della luce abbagliante ed il filtro 13, per effetto del dispositivo di impostazione, viene calzato sulla sorgente lumibosa 11; Come è rilevabile in figura.3 in questa posizione dal filtro 13 viene rilevata quasi tutta la luce emessa dalla sorgente luminosa 11, e dal proiettore 9 della luce abbagliante fuoriesce soltanto ancora luce infrarossa 19. Grazie alla esecuzione a manicotto del filtro 13 questo , nonostante la sua piccola grandezza costruttiva, può rilevare quasi l'intera luce emessa dalla sorgente luminosa 11. When the high beam is switched on, the filter 13 is in the opposition shown in Figure 2 and is therefore inactive. By switching from the high beam to the low beam or by switching on the low beam, the light source 11 of the high beam headlamp 9 remains in operation and the filter 13, by effect of the setting device, is fitted onto the light source 11; As can be seen in Figure 3, in this position the filter 13 detects almost all the light emitted by the light source 11, and only infrared light 19 comes out of the high beam headlamp 9. Thanks to the sleeve construction of the filter 13 this, despite its small constructive size, can detect almost the entire light emitted by the light source 11.

Circa nel centro del veicolo, come rappresentato in figura 4, ad esempio sul bordo inferiore del parabrezza, è disposto un ricevitore 21, che è sensibile alla luce infrarossa e rileva la zona illuminata dai proiettori 9 della luce abbagliante· Il ricevitore 21 è eseguito come una camera ad infrarosso. L'immagine rilevata dalla camera 21 ad infrarosso viene rappresentata su imo schermo video, che è disposto nella zona di visuale del conducente del veicolo e serve da apparecchio indicatore 22. Sullo schermo video 22 il conducente del veicolo, essendo inserita la luce anabbagliante, può riconoscer ostacoli distanti, così tempestivamente; come avviene quando è inserita la luce abbagliante, senza che vengano abbagliati i conducenti di'veicoli provenienti in senso contrario, poiché per questi i proiettori 9 della luce abbagliante appaiono spenti, in quanto emettano soltanto ancora luce infrarossa. Quando è inserita la luce abbagliante oppure quando è disinserito il dispositivo di illuminazione lo schermo video 22 può essere allontanato ad arientamento dalla zona di visuale del conducente del veicolo, cosicché non viene inutilmente pregiudicata la sua visione. Approximately in the center of the vehicle, as shown in Figure 4, for example on the lower edge of the windscreen, a receiver 21 is arranged, which is sensitive to infrared light and detects the area illuminated by the headlights 9 of the high beam.The receiver 21 is designed as an infrared camera. The image detected by the infrared camera 21 is represented on a video screen, which is arranged in the visual area of the driver of the vehicle and serves as an indicator device 22. On the video screen 22, the driver of the vehicle, having the dipped beam switched on, can recognize distant obstacles, so promptly; as happens when the high beam is switched on, without dazzling the drivers of oncoming vehicles, since for them the headlights 9 of the high beam appear to be switched off, as they still emit only infrared light. When the high beam is switched on or when the lighting device is switched off, the video screen 22 can be turned away from the visual area of the driver of the vehicle, so that his vision is not unnecessarily impaired.

Il filtro 13 può essere anche realizzato in modo che viene fatta passare ad esempio soltanto luce nella gamma di lunghezza d*onda ultravioletta, laddove in tal caso il ricevitore va corrispondentemente adattato# The filter 13 can also be designed in such a way that, for example, only light in the ultraviolet wavelength range is passed, in which case the receiver must be adapted accordingly.

Claims (1)

RIVENDICAZIONI 1. Dispositivo di illuminazione per veicoli con proiettori (8, 9) per produrre luce anabbagliante e luce abbagliante, caratterizzato dal fatto che quando è inserita la luce abbagliante una zona, corrispondente alla zona illuminata dalla luce abbagliante, viene illuminata con luce nella gamma di lunghezza d'onda non visibile, e questa zona viene rilevata da un ricevitore (21), sensibile alla luce non visibile, e viene riprodotta sull'appareechio indicatore (2) disposto nella zona di visuale del conducente del veicolo· 2. Dispositivo di illuminazione secondo la rivendicazione 1, caratterizzato dal fatto che la luce non visibile è situata nella gamma di lunghezza d'onda dell'infrarosso· 3· Dispositivo di illuminazione secondo la rivendicazione 1 oppure 2, caratterizzaito dal fatto che per la luce anabbagliante (8) e per la luce abbagliante (9) sono previsti proiettori separati, nonché dal fatto che la sorgente luminosa (il) del proiettore (9) della luce abbagliante, anche quando è inserita la luce anabbagliante, è in fun zione, e inoltre dal fatto che all'interno del proiettore (9) della luce abbagliante oppure davanti a questo è disposto un filtro (13), che quando è inserita la luce anabbagliante assorbe la parte visibile della luce emessa dalla sorgente luminosa (11) del proiettore (9) della luce abbagliante o la converte in luce non visibile ed è inattivo quando è inserita la luce abbagliante· 4. Dispositivo di illuminazione secondo la rivendicazione 3, catatterizzato dal fatto che il filtro (13) è disposto-amovibile all'intem o del proiettore (9) della-luce-abbagliante ed è movibile nel percorso dei raggi del proiettore (9) della luce abbagliante.. -5· Dispositivo,di-illuminazione secondo la rivendicazione 4,-caratterizzato,dal.fatto che il filtro (13) eseguito a forma di manicotto-e. può essere calzato sulla sorgente luminosa.(-11)-del proiettore (9) della luce,abbagliante 6. Dispositivo,di-illuminazione secando la rivendicazione 5, caratterizzato dal fatto che il filtro (13) è disposto su un supporto (14) che è guidato scorrevole su.un profilato (.17) estenf dentesi parallelamente all'asse,ottico-(18) del.prolettore (9) della luce abbagliante. 7. Dispositivo di-illuminazione secondo una delle rivendicazioni precedenti,-caratteri zzato dal fatto che come,apparecchi indicatori ( 12) serve uno schermocideo. fatto che la luce non visibile,è situata nella-gamma UV CLAIMS 1. Lighting device for vehicles with headlamps (8, 9) for producing low beam and high beam, characterized in that when the high beam is switched on a zone, corresponding to the zone illuminated by the high beam, is illuminated with light in the range of wavelength not visible, and this area is detected by a receiver (21), sensitive to non-visible light, and is reproduced on the indicator device (2) placed in the visual area of the driver of the vehicle 2. Lighting device according to claim 1, characterized in that the non-visible light is located in the infrared wavelength range 3 Lighting device according to claim 1 or 2, characterized in that separate headlamps are provided for the low beam (8) and the high beam (9), as well as by the fact that the light source (il) of the headlamp (9 ) of the high beam, even when the low beam is switched on, is in operation, and also by the fact that inside the headlight (9) of the high beam or in front of it there is a filter (13), which when inserted the low beam absorbs the visible part of the light emitted by the light source (11) of the headlamp (9) of the high beam or converts it into invisible light and is inactive when the high beam is switched on 4. Lighting device according to claim 3, characterized by the fact that the filter (13) is disposed-removable inside the headlight (9) of the high-beam and is movable in the path of the rays of the headlight (9) of the dazzling light.. -5 Lighting device according to claim 4, characterized by the fact that the filter (13) is in the form of a sleeve. it can be fitted on the light source. (- 11) -of the projector (9) of the light, high beam 6. Lighting device according to claim 5, characterized in that the filter (13) is arranged on a support (14) which is slidably guided on a profile (17) extending parallel to the optical axis. (18) of the high beam protector (9). Lighting device according to one of the preceding claims, characterized in that as the display apparatus (12) it serves a video screen. the fact that the non-visible light is located in the UV-range
IT02157790A 1989-09-27 1990-10-08 VEHICLE LIGHTING DEVICE IT1243046B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3932216A DE3932216C3 (en) 1989-09-27 1989-09-27 Lighting device for vehicles

Publications (3)

Publication Number Publication Date
IT9021577A0 IT9021577A0 (en) 1990-10-08
IT9021577A1 true IT9021577A1 (en) 1992-04-08
IT1243046B IT1243046B (en) 1994-05-23

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IT02157790A IT1243046B (en) 1989-09-27 1990-10-08 VEHICLE LIGHTING DEVICE

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DE (1) DE3932216C3 (en)
FR (1) FR2652317B1 (en)
IT (1) IT1243046B (en)

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Also Published As

Publication number Publication date
IT9021577A0 (en) 1990-10-08
IT1243046B (en) 1994-05-23
FR2652317A1 (en) 1991-03-29
DE3932216A1 (en) 1991-04-04
DE3932216C2 (en) 1997-09-11
FR2652317B1 (en) 1997-08-22
DE3932216C3 (en) 2002-09-12

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