US3622778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle headlamp with two light sources
Assignee: Cibie Projecteurs SA
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Filing: 1968-12-04
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Granted: 1971-11-23
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Expires: 1988-12-04
Abstract
Abstract A main parabolic reflector has an iodine lamp located slightly in front of the reflector focal point. A masking element below the lamp defines a plane below which no light from the lamp strikes the reflector. An auxiliary reflector having an aperture substantially one half that of the main reflector has a second iodine lamp at its focal point. The vertical axis of the auxiliary reflector is spaced from the vertical axis of the main reflector, and the aperture of the auxiliary reflector is tangent to the plane defined by the mask.
Inventors
- 👤 Pierre Cibie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:14
CPC Classifications
F; F21; F21S; F21S41/00; F21S41/30; F21S41/32; F21S41/36; F21S41/10; F21S41/14; F21S41/162; F21S41/321; F21S41/39; F21S41/40; F21S41/43; F21S41/60; F21S41/65; F21S41/663
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
158 words
A vehicle headlamp comprising a. a main reflector for providing a dipped beam, said reflector having the shape of a paraboloid, b. a lamp located in front of the focal point of said main reflector, c. a masking element beneath said lamp and defining a plane of cutout below which no light is received from said main reflector, said masking element being arranged so that the plane of cutout is oblique to a horizontal side-to-side axis of said main reflector which passes through the front-to-rear axis of said main reflector, d. an auxiliary reflector for providing a main beam, said reflector having the shape of a paraboloid, the vertical axis of said auxiliary reflector being laterally spaced from a vertical plane containing the vertical axis of said main reflector, and the aperture of said auxiliary reflector being below and tangent to said plane of cutout and e. a lamp located at the focal point of said auxiliary reflector.
Claim 2
Dependent Claim
158 words
A vehicle headlamp comprising a. a main reflector for providing a dipped beam, said reflector having the shape of a paraboloid, b. a lamp located in front of the focal point of said main reflector, c. a masking element beneath said lamp and defining a plane of cutout below which no light is received from said main reflector, said masking element being arranged so that the plane of cutout is oblique to a horizontal side-to-side axis of said main reflector which passes through the front-to-rear axis of said main reflector, d. an auxiliary reflector for providing a main beam, said reflector having the shape of a paraboloid, the vertical axis of said auxiliary reflector being laterally spaced from a vertical plane containing the vertical axis of said main reflector, and the aperture of said auxiliary reflector being below and tangent to said plane of cutout and e. a lamp located at the focal point of said auxiliary reflector.
Claim 3
Dependent Claim
20 words
A vehicle headlamp as claimed in claim 1, in which the auxiliary reflector is adjustably mounted on the main reflector.
References Cited (Backward Citations)
US1357761A
Cited
FR580397A
Cited
US1798132A
Cited
US2020130A
Cited
US2122465A
Cited
FR1499176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |