GB186038A - Improvements in or relating to anti-dazzle devices for vehicle & other lamps - Google Patents
Improvements in or relating to anti-dazzle devices for vehicle & other lampsInfo
- Publication number
- GB186038A GB186038A GB20243/22A GB2024322A GB186038A GB 186038 A GB186038 A GB 186038A GB 20243/22 A GB20243/22 A GB 20243/22A GB 2024322 A GB2024322 A GB 2024322A GB 186038 A GB186038 A GB 186038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- brushes
- casing
- armature
- coloured
- 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
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
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of 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
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
186,038. Richards, H., Cassels, A. V., Townsend, O. A., and Paton, J. A. Sept. 18, 1921, [Convention date]. Motor-vehicle and the like head lamps; electric lamp lanterns; mounting electric lamps in lanterns.-To prevent dazzle in vehicle head-lights &c., a coloured transparent envelope, divided or striated into stripes of the primary colours, is revolved around or partly around and in front of a source of light mounted in front of a reflector in a lamp casing or the wall of the lamp bulb is coloured and the bulb itself rotated. In the latter form the bulb, Fig. 2, is divided longitudinally into four parts, two parts 7 being coloured blue tinged with green, the other parts 8 yellow, and is rotated by an electric motor mounted in a casing 9 which is supported by a collar 38 on the rear of the head-light and retained therein by screws through lugs 40. The bulb-holder is mounted in a socket 26 integral with a hollow shaft 23 which is mounted on a stationary axle 27 and has secured thereon a sleeve 20 carrying the core 18 of the armature proper 17 and a commutator 21 and a contact ring 22. Two sets of spring brushes 33 axe mounted in the casing 9, one set for the commutator 21 and one for the ring 22. One supply wire is earthed to the casing 9 and the other is connected to an adaptor 36 and then through a contact spring 34 to the brushes 33 which are connected in parallel. One lead of the field-windings 14 of the armature is connected to the contact 34 or one of the brushes 33 and the other is earthed; similarly one lead of each of the armature windings 19 is connected to its corresponding commutator segment and the other is earthed to the armature core 18. A lead for the bulb is led from the ring 22 through the core 18 or under the windings 19. In a modification, an envelope coloured similarly to the bulb 7, 8 is rotated around the bulb, which is fixed, and only one set of brushes 33 is used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU186038X | 1921-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB186038A true GB186038A (en) | 1923-10-24 |
Family
ID=3708293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20243/22A Expired GB186038A (en) | 1921-09-13 | 1922-07-24 | Improvements in or relating to anti-dazzle devices for vehicle & other lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB186038A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004047498A1 (en) * | 2002-11-19 | 2004-06-03 | Dan Friis | Lighting body or source of light based on light-emitting diodes |
-
1922
- 1922-07-24 GB GB20243/22A patent/GB186038A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004047498A1 (en) * | 2002-11-19 | 2004-06-03 | Dan Friis | Lighting body or source of light based on light-emitting diodes |
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