Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1989-06-27
1990-04-03
Dority, Carroll B.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362297, 313115, 313117, B60Q 100
Patent
active
049147471
ABSTRACT:
Disclosed herein is a vehicular projector type headlamp. The headlamp comprises a concave light reflector which includes upper and lower reflector parts, each part constituting a part of an ellipsoidal light reflecting surface and having first and second focuses, the upper and lower reflector parts having a common optical axis and having the second focuses located on a common position, the first focus of the upper reflector part being in front of that of the lower reflector part; a first light source positioned at the first focus of the upper reflector part; a second light source positioned at the first focus of the lower reflector part; a shade plate positioned in front of the first and second light sources; and a converging lens arranged in front of the shade plate. The shade plate is arranged flat with respect to the optical axis and arranged in parallel with the optical axis having a front edge thereof positioned just behind the second focus, and the lens has its focus located at the front edge of the shade plate.
REFERENCES:
patent: 1702746 (1929-02-01), Prichard
patent: 4100594 (1978-07-01), Gould
patent: 4686610 (1987-08-01), Cibie et al.
patent: 4825343 (1989-04-01), Nakata
Dority Carroll B.
Koito Seisakusho Co, Ltd.
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