GB720479A - Improvements in anti-glare systems for vehicle headlamps - Google Patents
Improvements in anti-glare systems for vehicle headlampsInfo
- Publication number
- GB720479A GB720479A GB26639/51A GB2663951A GB720479A GB 720479 A GB720479 A GB 720479A GB 26639/51 A GB26639/51 A GB 26639/51A GB 2663951 A GB2663951 A GB 2663951A GB 720479 A GB720479 A GB 720479A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bands
- rubber
- frame
- rib
- secured
- 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.)
- Expired
Links
- 239000002184 metal Substances 0.000 abstract 2
- 230000005520 electrodynamics Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
-
- 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
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- 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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
720,479. Eye-protectors. SVENSKA AEROPLAN AKTIEBOLAGET. Nov. 14, 1961 [Nov. 16, 1950; June 15, 1951], No. 26639/51. Class 97 (1). [Also in Groups XI, XXXII and XXXVIII] In a vehicle lighting system (see Group XI) the field of view of the driver is opened and closed simultaneously with the intermittent energization of the headlights by a Venetian blind type of screen 18 adjustably pivoted to the windscreen and comprising a plurality of parallel thin metal bands 38 occupying the whole or a portion only of a rectangular frame and adapted to be oscillated about their longitudinal axes:' The ends of the bands are narrower than the middle parts and are clamped in the C- sectioned side members 34 of the frame between distance-pieces 44, Fig. 4, each of which has an offset part with a stud 46 which passes through a hole in the end of a band 38 and enters a recess 48 in the adjacent distance - piece. Rubber fillets are disposed between the distance-pieces and the frame. The bands are held under tension by nuts 52 on the ends of the two horizontal tubular members 30, 32 of the frame. The bands are oscillated by an electro-dynamic device 98 secured to the upper horizontal frame member 30 and comprising a fixed magnet and a movable coil energized by electric current pulses. The movable coil is connected by a link and lever to a shaft 70 rotatably mounted in rubber-lined bearings in members 72 secured to the frame. The oscillating movement of the shaft 70 is transmitted to the metal bands 38 by two pairs of vertical ribs 62 which are connected at their upper ends to pins in rubber-lined bearings in arms 64 on the ends of the shaft 70 and at their lower ends to pins in rubber-lined bearings in arms 76 rotatably mounted on spindles 82 secured to the lower horizontal frame member 32. Each rib has a longitudinal rubber fillet with transverse parallel grooves in which the edges of the bands are engaged so that as one rib of a pair moves longitudinally and the other rib of the same pair moves in the opposite sense, the middle portions of the bands are rocked about their longitudinal axes. The frequency of operation of the screen is high enough to provide continuous non-flickering vision.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE720479X | 1950-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB720479A true GB720479A (en) | 1954-12-22 |
Family
ID=20315963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26639/51A Expired GB720479A (en) | 1950-11-16 | 1951-11-14 | Improvements in anti-glare systems for vehicle headlamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB720479A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004011020A1 (en) * | 2004-03-04 | 2005-09-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for reducing of dazzle phenomena for driver of motor vehicle has unit for sensing of direction of movement of motor vehicle, whereby light phase inside pulse period duration is allocated to direction of movement |
DE102013007688A1 (en) | 2013-05-02 | 2014-11-06 | Manfred Schindehütte | Device for avoiding glare of the driver by the headlight of an oncoming vehicle. |
-
1951
- 1951-11-14 GB GB26639/51A patent/GB720479A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004011020A1 (en) * | 2004-03-04 | 2005-09-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for reducing of dazzle phenomena for driver of motor vehicle has unit for sensing of direction of movement of motor vehicle, whereby light phase inside pulse period duration is allocated to direction of movement |
DE102004011020B4 (en) * | 2004-03-04 | 2007-01-11 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for reducing glare of a motor vehicle driver |
DE102013007688A1 (en) | 2013-05-02 | 2014-11-06 | Manfred Schindehütte | Device for avoiding glare of the driver by the headlight of an oncoming vehicle. |
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