GB1232136A - - Google Patents
Info
- Publication number
- GB1232136A GB1232136A GB1232136DA GB1232136A GB 1232136 A GB1232136 A GB 1232136A GB 1232136D A GB1232136D A GB 1232136DA GB 1232136 A GB1232136 A GB 1232136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- screen
- axis
- beam filament
- dipped beam
- 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)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,232,136. Lamps for vehicle headlights. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 June, 1969 [8 June, 1968], No. 28562/69. Heading F4R. [Also in Division H1] In a halogen filament lamp for a vehicle headlight having a main beam filament and a dipped beam filament 7 arranged eccentrically to, and with their longitudinal axes in the longitudinal direction of, the axis 17 of the lamp, the dipped beam filament is partly surrounded by a lightintercepting screen 9 within the lamp bulb. This screen covers an arc in a plane at right angles to the longitudinal axis of the lamp, which subtends an angle of between 165 and 180 degrees at the axis of the lamp. The side of the screen facing the dipped beam filament comprises a reflecting surface, and the screen is arranged between the dipped light filament and the wall of the tubular part of the lamp envelope, with a part c, d curving towards the lamp axis 17 between the two filaments of such a shape that rays 25 from the dipped beam filament are reflected 27 at an angle of at most 60 degrees with the lamp axis 17 in a direction away from the parabolic reflector 11 of the lamp, the remainder of the screen being arranged to reflect the light rays so that they do not pass through a cylindrical region coaxial with the lamp envelope and situated between the filaments and having a maximum radius of 2À5 times the dipped beam filament diameter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL686808109A NL154058B (en) | 1968-06-08 | 1968-06-08 | HALOGEN BULB FOR VEHICLE LIGHTING. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1232136A true GB1232136A (en) | 1971-05-19 |
Family
ID=19803853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1232136D Expired GB1232136A (en) | 1968-06-08 | 1969-06-05 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3646386A (en) |
AT (1) | AT295655B (en) |
BE (1) | BE734187A (en) |
ES (1) | ES167983Y (en) |
FR (1) | FR2010436A1 (en) |
GB (1) | GB1232136A (en) |
NL (1) | NL154058B (en) |
SE (1) | SE347842B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7014336A (en) * | 1970-09-30 | 1972-04-05 | ||
US3968395A (en) * | 1972-09-25 | 1976-07-06 | Siemens Aktiengesellschaft | Two filament electric bulb traffic light |
DE2841347A1 (en) * | 1978-09-22 | 1980-04-10 | Patra Patent Treuhand | TWO-FILM HALOGEN LAMP |
FR2498297B1 (en) * | 1981-01-16 | 1985-11-29 | Cibie Projecteurs | IMPROVEMENTS ON CROSSING PROJECTORS |
US5357407A (en) * | 1993-05-10 | 1994-10-18 | Woods Michael E | Light attenuator for high/low beam vehicle headlight bulb |
US5578893A (en) * | 1993-11-16 | 1996-11-26 | Piaa Corporation | Bulb for vehicular lighting equipment |
EP1016125B1 (en) * | 1997-04-28 | 2009-08-26 | Osram Sylvania Inc. | Vehicle lamps with improved filament and filament support configurations |
US6281630B1 (en) | 1997-04-28 | 2001-08-28 | Osram Sylvania, Inc. | Vehicle lamps with glare control |
US9805926B2 (en) * | 2013-09-13 | 2017-10-31 | Koninklijke Philips N.V. | Vibration resistant automotive front lighting lamp |
CN105593970B (en) * | 2013-10-09 | 2017-10-20 | 皇家飞利浦有限公司 | Anti-vibration motor vehicle front lamp |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB404578A (en) * | 1933-08-17 | 1934-01-18 | Wilhelm Honing | Improvements in electric incandescent lamps |
NL72673C (en) * | 1949-04-13 | |||
DE1159562B (en) * | 1961-07-21 | 1963-12-19 | Rolf Mickley | Two-filament incandescent lamp for dimmed high-beam and near-light in vehicle headlights |
BE632453A (en) * | 1962-05-16 | |||
US3293475A (en) * | 1963-05-08 | 1966-12-20 | Grunning Sven | Multifilament lamp with a full shield for one filament |
FR90823E (en) * | 1966-06-09 | 1968-02-23 | Lampes Elect Fab Reunies | Electric lamp base |
NL6603641A (en) * | 1966-03-19 | 1967-09-20 |
-
1968
- 1968-06-08 NL NL686808109A patent/NL154058B/en not_active IP Right Cessation
-
1969
- 1969-06-05 GB GB1232136D patent/GB1232136A/en not_active Expired
- 1969-06-05 SE SE07981/69A patent/SE347842B/xx unknown
- 1969-06-06 FR FR6918720A patent/FR2010436A1/fr not_active Withdrawn
- 1969-06-06 BE BE734187D patent/BE734187A/xx not_active IP Right Cessation
- 1969-06-06 AT AT540869A patent/AT295655B/en not_active IP Right Cessation
- 1969-06-07 ES ES1969167983U patent/ES167983Y/en not_active Expired
- 1969-06-09 US US831358A patent/US3646386A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL6808109A (en) | 1969-12-10 |
ES167983Y (en) | 1972-06-01 |
SE347842B (en) | 1972-08-14 |
AT295655B (en) | 1972-01-10 |
DE1928978B2 (en) | 1976-07-01 |
ES167983U (en) | 1971-10-16 |
DE1928978A1 (en) | 1970-01-29 |
NL154058B (en) | 1977-07-15 |
BE734187A (en) | 1969-12-08 |
US3646386A (en) | 1972-02-29 |
FR2010436A1 (en) | 1970-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |