Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1989-04-07
1990-05-29
Lazarus, Ira S.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362309, 362336, 362338, B60Q 102
Patent
active
049300512
ABSTRACT:
This headlamp for a motor vehicle comprises a lens that has a front surface that slopes backwardly from bottom to top of the lens. In localized regions of the lens, there are spread flutes, each comprising alternating ridges and grooves on the back surface of the lens. The individual ridges extend in a direction between the top and bottom of the lens and are characterized by having the form of a segment of an inverted, base-up cone. The individual grooves extend in a direction between the top and bottom of the lens and are characterized by having the form of a segment of an upright, base-down cone. The coniform configuration of the individual ridges and grooves serves to lift the edges of the light beam passing therethrough and thereby compensate for the tendency of the beam to droop at its edges as a result of the backward slope of the front surface of the lens.
REFERENCES:
patent: 1041329 (1912-10-01), Mygatt
patent: 1955603 (1934-04-01), Lamblin-Parent
patent: 2568494 (1951-09-01), Geissbuhler
patent: 3431449 (1969-03-01), Hundley
patent: 4249232 (1981-02-01), Dick
patent: 4446511 (1984-05-01), Sands
Corwin Stanley C.
General Electric Company
Hagarman Sue
Jacob Fred
Lazarus Ira S.
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