Illumination – Light source and modifier – Including reflector
Patent
1996-07-30
1997-11-18
Dority, Carroll B.
Illumination
Light source and modifier
Including reflector
312338, 312 83, F21V 700
Patent
active
056880448
ABSTRACT:
A fog lamp or the like which provides a desired light distribution pattern by means of horizontally diffusing lens steps formed in a lens in the case either where a downward curve is provided in the outer end portion of the lens disposed in front of a reflector and inclined in right and left directions, and where reflected light enters the outer end portion of the lens diagonally from the rear. Horizontally diffusing lens steps situated in the outer end portion of the lens are formed in such a manner that, when the lens is viewed from ahead of the lamp, they are not seen extending in the perpendicular direction like the horizontally diffusing lens steps situated in the other portions of the lens, but appear curved and shifted from top toward bottom inwardly in the vehicle width direction while their right and left widths are narrowed. This allows the horizontally diffusing lens steps to be seen extending in the perpendicular direction when they are viewed from the entering direction of the reflected light. As a result the reflected light entering the horizontally diffusing lens steps passes and spreads therethrough without being inclined with respect to the horizontal direction.
REFERENCES:
patent: 4577260 (1986-03-01), Tysoe
patent: 5081564 (1992-01-01), Mizoguchi et al.
Nishizawa Takaaki
Watanabe Saburo
Dority Carroll B.
Koito Manufacturing Co. Ltd.
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