GB390278A - Improvements in or relating to electric incandescent lamps for vehicles - Google Patents
Improvements in or relating to electric incandescent lamps for vehiclesInfo
- Publication number
- GB390278A GB390278A GB127632A GB127632A GB390278A GB 390278 A GB390278 A GB 390278A GB 127632 A GB127632 A GB 127632A GB 127632 A GB127632 A GB 127632A GB 390278 A GB390278 A GB 390278A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- electric incandescent
- filament
- vehicles
- lamp
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
390,278. Electric incandescent lamps. DICKER, S. G. S., 20, Holborn, London.-(Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 13D, Emmasingel, Eindhoven, Holland.) Jan. 15, 1932, No. 1276. [Class 39 (ii).] An electric incandescent lamp for vehicles, particularly automobiles, is provided with a filament 3, Fig. 3, co-operating with a concave screen 7 arranged within the bulb in such manner that the plane of opening of the screen is intersected at an acute angle by the axis of the lamp, the angle in the example being about 12‹. The opening plane of the screen may, as shown in Fig. 3, be perpendicular to the vertical plane extending through the axis of the lamp, or at an angle thereto, Fig. 5, the resultant light beams being shown in Figs. 4 and 6, respectively. In addition to the filament 13, Fig. 5, co-operating with the screen 15, a major filament 12 may be arranged at the focus of the reflector 14 to produce a horizontal beam of light. The screen may have either a dull or reflecting surface, and may be of any concave shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127632A GB390278A (en) | 1932-01-15 | 1932-01-15 | Improvements in or relating to electric incandescent lamps for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127632A GB390278A (en) | 1932-01-15 | 1932-01-15 | Improvements in or relating to electric incandescent lamps for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB390278A true GB390278A (en) | 1933-04-06 |
Family
ID=9719142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB127632A Expired GB390278A (en) | 1932-01-15 | 1932-01-15 | Improvements in or relating to electric incandescent lamps for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB390278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2678996A (en) * | 1950-01-28 | 1954-05-18 | Johnson Elmer | Nonglare automobile headlight |
-
1932
- 1932-01-15 GB GB127632A patent/GB390278A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2678996A (en) * | 1950-01-28 | 1954-05-18 | Johnson Elmer | Nonglare automobile headlight |
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