Reduced package depth low profile lamp with conic section cylind

Details Reduced package depth low profile lamp with conic section cylind Reduced package depth low profile lamp with conic section cylind

1996-03-01

1998-08-11

Sember, Thomas M.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 80, 362308, 362309, 362336, 362338, B60Q 100

Patent

active

057917590

ABSTRACT:
A reduced package depth low profile lighting system has a light source emitting light at a solid lens for shaping the light to conform to governmental lighting standards. The solid lens has a first surface comprised of a plurality of conic section cylinders. Each of the cylinders has a length first focal line, a second focal line and a cylinder line. The first focal line is tangent to a package curve preferably defined by a circle preferably in the horizontal plane of the vehicle. The circle has a center and a predetermined radius length. The center is coincidence with the light source. Each of conic cylinders substantially collimates light in the vertical plane while spreading light in the horizontal plane within a predetermined angle from the optical axis.

REFERENCES:
patent: 1579855 (1926-04-01), Beyer
patent: 1601688 (1926-09-01), Nystrom
patent: 1788926 (1931-01-01), Wood
patent: 2082100 (1937-06-01), Dorey et al.
patent: 4577260 (1986-03-01), Tysoe
patent: 4684919 (1987-08-01), Hihi
patent: 4733335 (1988-03-01), Serizawa et al.
patent: 5515253 (1996-05-01), Sjobom

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