GB215874A - Improvements in reflectors for vehicle lamps - Google Patents
Improvements in reflectors for vehicle lampsInfo
- Publication number
- GB215874A GB215874A GB575623A GB575623A GB215874A GB 215874 A GB215874 A GB 215874A GB 575623 A GB575623 A GB 575623A GB 575623 A GB575623 A GB 575623A GB 215874 A GB215874 A GB 215874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extension piece
- lower section
- fitted
- front portion
- paraboloid
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
- F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
-
- 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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
215,874. Mortimer, C. Feb. 28, 1923. Vehicle lamps.-A vehicle lamp reflector comprises an upper half paraboloid 3, the horizontal lower edge of which is continued vertically downwards so as to form straight side-pieces between which is fitted a segment of a paraboloid 5, a fine coiled filament extending along the common axis and between the focii 1, 2 of the upper and lower sections respectively. A curved extension piece 4 is fitted in front of the lower section 5 and reflects light upwardly on to the front portion 7 of the upper section 3, the front portion 7 being given an excessive curvature so as to reflect light downwardly for close range illumination. A metal rib 6 is placed between the lower section 5 and the extension piece 4 so as to prevent light reflected by the lower section 5 from striking the extension piece 4 and being reflected upwardly. Specifications 13791/15, 127,212, and 198,744 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB575623A GB215874A (en) | 1923-02-28 | 1923-02-28 | Improvements in reflectors for vehicle lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB575623A GB215874A (en) | 1923-02-28 | 1923-02-28 | Improvements in reflectors for vehicle lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB215874A true GB215874A (en) | 1924-05-22 |
Family
ID=9802071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB575623A Expired GB215874A (en) | 1923-02-28 | 1923-02-28 | Improvements in reflectors for vehicle lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB215874A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918580A (en) * | 1987-11-05 | 1990-04-17 | Koito Seisakusho Co., Ltd. | Vehicle headlamp |
-
1923
- 1923-02-28 GB GB575623A patent/GB215874A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918580A (en) * | 1987-11-05 | 1990-04-17 | Koito Seisakusho Co., Ltd. | Vehicle headlamp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES357562A1 (en) | High intensity vehicle lamp with shield preventing unwanted reflection | |
GB215874A (en) | Improvements in reflectors for vehicle lamps | |
US2177217A (en) | Vehicle head lamp | |
US1513845A (en) | Corrugated reflector for automobile lamps | |
GB287088A (en) | Improvements in or relating to vehicle lamps | |
US1562186A (en) | Attachment for reflectors | |
US1461362A (en) | Nonglare reflector | |
GB359752A (en) | ||
US1651984A (en) | Headlight | |
GB334803A (en) | ||
GB156024A (en) | Improvements in headlight dimmers | |
GB532090A (en) | Improvements in or relating to the head lamps of motor vehicles | |
GB226621A (en) | Improvements in head lights for vehicles | |
US1427504A (en) | Light-controlling device | |
GB305842A (en) | Improvements in vehicle head-lamps | |
GB210303A (en) | Improvements in projection lamps | |
GB178388A (en) | Improvements in headlamps for automobiles | |
GB441527A (en) | An improved vehicle head-lamp | |
US2104556A (en) | Incandescent lamp | |
GB170610A (en) | Improvements in vehicular head lamps | |
GB380562A (en) | An anti-dazzle device for vehicle and like lamps | |
US1404041A (en) | Vehicle light | |
GB511783A (en) | Improvements in or relating to light-distributing and directing devices | |
GB339786A (en) | Means for rendering light from motor car head lamps anti dazzle and/or fog penetrating | |
GB288898A (en) | Improvements in or relating to vehicle head-lamps |