Antiglare headlamp particularly a rectangular reflector type hea

Details Antiglare headlamp particularly a rectangular reflector type hea Antiglare headlamp particularly a rectangular reflector type hea

1987-08-19

1988-07-05

Scott, Samuel

Illumination

Light source and modifier

Including reflector

362297, 362346, F21V 709

Patent

active

047559195

ABSTRACT:
The reflection surface of a rectangular reflector for a lower beam headlamp is composed of four sectors delimited by transition lines. Two diametrically opposed left and right sectors (11, 12) form a part of a paraboloid projecting a hot light spot. The diametrically opposed upper and lower sectors (13, 14) are part of a paraboloid-ellipsoid defining a parabola in its vertical center section and an ellipsis in its horizontal center section. The latter sectors project a light spot having a broad light dispersion and an increased front field illumination. The reflected light beam corresponds substantially to a dimmed lower light beam to be projected on the road so that a light dispersing glass of the headlamp does not require any optical means for light beam adjustment.

REFERENCES:
patent: 1306511 (1919-06-01), Ames, Jr.
patent: 1546281 (1925-07-01), Brown
patent: 3688149 (1972-08-01), Pitkjaan
patent: 4530042 (1985-07-01), Cibie et al.
patent: 4612608 (1986-09-01), Peitz

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