GB446100A - Improvements relating to road vehicle electric lamps - Google Patents
Improvements relating to road vehicle electric lampsInfo
- Publication number
- GB446100A GB446100A GB30375/34A GB3037534A GB446100A GB 446100 A GB446100 A GB 446100A GB 30375/34 A GB30375/34 A GB 30375/34A GB 3037534 A GB3037534 A GB 3037534A GB 446100 A GB446100 A GB 446100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axis
- road vehicle
- lucas
- improvements relating
- vehicle electric
- 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
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/28—Cover glass
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
446,100. Vehicle lamps. LUCAS, Ltd., J., and LUCAS, O., Great King Street, Birming- ham. Oct. 23, 1934, No. 30375. [Class 75 (iv)] A vehicle lamp is provided with a hollow member a made of glass or other transparent or translucent material and adapted to enclose the upper front portion of the electric lamp bulb b, the member a having formed on its outer and/or inner side refractive surfaces e so arranged that in or near a vertical plane containing the longitudinal axis of the beam, the light emerging from the member a is directed downwardly towards that axis, and in or near a horizontal plane containing said axis the light is caused to diverge outwardly in both directions away from the axis. The member a may be in the form of a segment of a sphere or of an ellipsoid, and may be secured in position by wire supports c, d.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30375/34A GB446100A (en) | 1934-10-23 | 1934-10-23 | Improvements relating to road vehicle electric lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30375/34A GB446100A (en) | 1934-10-23 | 1934-10-23 | Improvements relating to road vehicle electric lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB446100A true GB446100A (en) | 1936-04-23 |
Family
ID=10306683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30375/34A Expired GB446100A (en) | 1934-10-23 | 1934-10-23 | Improvements relating to road vehicle electric lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB446100A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2418417A1 (en) * | 1978-02-27 | 1979-09-21 | Iao Industrie Riunite Spa | MOTOR VEHICLE LAMP |
DE3143086A1 (en) * | 1980-10-31 | 1982-08-19 | Saßmannshausen, Knut Otto, 6580 Idar-Oberstein | Concave mirror lighting unit |
DE3143085A1 (en) * | 1981-10-30 | 1983-05-19 | Saßmannshausen, Knut Otto, 6580 Idar-Oberstein | Concave mirror lighting fixture, in particular headlight |
WO2005017947A3 (en) * | 2003-08-15 | 2006-12-28 | Philips Intellectual Property | Lamp for a vehicle headlight |
-
1934
- 1934-10-23 GB GB30375/34A patent/GB446100A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2418417A1 (en) * | 1978-02-27 | 1979-09-21 | Iao Industrie Riunite Spa | MOTOR VEHICLE LAMP |
DE3143086A1 (en) * | 1980-10-31 | 1982-08-19 | Saßmannshausen, Knut Otto, 6580 Idar-Oberstein | Concave mirror lighting unit |
DE3143085A1 (en) * | 1981-10-30 | 1983-05-19 | Saßmannshausen, Knut Otto, 6580 Idar-Oberstein | Concave mirror lighting fixture, in particular headlight |
WO2005017947A3 (en) * | 2003-08-15 | 2006-12-28 | Philips Intellectual Property | Lamp for a vehicle headlight |
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