FR2449556A1 - Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehicule - Google Patents
Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehiculeInfo
- Publication number
- FR2449556A1 FR2449556A1 FR7904787A FR7904787A FR2449556A1 FR 2449556 A1 FR2449556 A1 FR 2449556A1 FR 7904787 A FR7904787 A FR 7904787A FR 7904787 A FR7904787 A FR 7904787A FR 2449556 A1 FR2449556 A1 FR 2449556A1
- Authority
- FR
- France
- Prior art keywords
- ambient light
- vehicle
- control
- photocell
- lights
- 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- Withdrawn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
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2603—Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
DISPOSITIF PERMETTANT LA MODIFICATION DE L'INTENSITE LUMINEUSE DES PROJECTEURS D'UN VEHICULE PAR L'ACTION DE LA LUMIERE AMBIANTE OU D'UN FLUX LUMINEUX. LE DISPOSITIF COMPREND UN COMPOSANT PHOTO-SENSIBLE, QUI SOUS L'EFFET DE LA LUMINOSITE AMBIANTE OU D'UN FLUX LUMINEUX, EMET UN COURANT ELECTRIQUE QUI TRANSMET AUTOMATIQUEMENT, A PARTIR D'UNE INTENSITE DETERMINEE UNE COMMANDE QUI MODIFIE INSTANTANEMENT L'INTENSITE LUMINEUSE DES PROJECTEURS. L'INVENTION PEUT ETRE UTILISEE POUR LA SIGNALISATION DES VEHICULES A LA TOMBEE DE LA NUIT; POUR LA CIRCULATION NOCTURNE, POUR REDUIRE L'INTENSITE DES PROJECTEURS D'UN VEHICULE, PAR L'ACTION DU FLUX LUMINEUX DES PHARES D'UN AUTRE VEHICULE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7904787A FR2449556A1 (fr) | 1979-02-23 | 1979-02-23 | Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehicule |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7904787A FR2449556A1 (fr) | 1979-02-23 | 1979-02-23 | Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehicule |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2449556A1 true FR2449556A1 (fr) | 1980-09-19 |
Family
ID=9222427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7904787A Withdrawn FR2449556A1 (fr) | 1979-02-23 | 1979-02-23 | Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehicule |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2449556A1 (fr) |
-
1979
- 1979-02-23 FR FR7904787A patent/FR2449556A1/fr not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52109382A (en) | Method and device for controlling laser light output intensity | |
SE8304226D0 (sv) | Signalleuchtenaggregat fur kraftfahrzeuge | |
ATE24249T1 (de) | Signalanzeige. | |
SE8206122L (sv) | Spennanordning | |
JPS5320923A (en) | Thermodevelopable light sensitive material | |
DE3069366D1 (en) | Light source device for an endoscope | |
DE3162147D1 (en) | Photographing apparatus for an endoscope | |
FR2449556A1 (fr) | Dispositif permettant de faire varier l'intensite lumineuse des projecteurs d'un vehicule | |
SE7800922L (sv) | Sett och anordning for reglering av en angturbinanleggning | |
GB1284749A (en) | Improvements in and relating to photographic cameras | |
JPS53105992A (en) | Stabilizing circuit for lumious element output | |
JPS5437485A (en) | Output stabilizing method for semiconductor laser | |
JPS52127114A (en) | Muting circuit | |
JPS5370479A (en) | Photo agc system | |
JPS56100575A (en) | Television camera device | |
SE7706624L (sv) | Optoelektronisk anordning samt sett for dess tillverkning | |
JPS5299873A (en) | Photoelectric smoke sensor | |
JPS5218384A (en) | Photometric device | |
GB1342273A (en) | Photographic camera | |
JPS5413391A (en) | Smoke sensor | |
JPS53125076A (en) | Dynamic characteristic measuring circuit | |
JPS5326648A (en) | Abnormal amplitude limiter and its detection/dispaly circuit | |
ATE27394T1 (de) | Vorrichtung zum automatischen schalten und regeln einer raumbeleuchtung. | |
SU661645A1 (ru) | Устройство дл регулировани ркости изображени на выходе усилител ркости | |
SE420537B (sv) | Pyroteknisk lyssats for lys- och signalammunition samt anvendning av densamma i sparljusammunition |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |