Headlamp for vehicle

Details Headlamp for vehicle Headlamp for vehicle

2005-04-19

2005-04-19

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Special application

Vehicle

C362S507000, C362S544000, C362S800000

Reexamination Certificate

active

06882110

ABSTRACT:
A headlamp having a plurality of lighting units using light emitting diodes as light sources. A cutoff line forming unit, hot zone forming units, and a diffusion region forming unit are used as these lighting units. Consequently, a light distribution pattern for a low beam having a desirable pattern shape and light intensity distribution can be obtained as the synthetic light distribution pattern of light distribution patterns formed by the irradiation of a light from these three kinds of lighting units.

REFERENCES:
patent: 5803579 (1998-09-01), Turnbull et al.
patent: 5975730 (1999-11-01), Neumann et al.
patent: 6406172 (2002-06-01), Harbers et al.
patent: 6511215 (2003-01-01), Hashigaya
patent: 6565247 (2003-05-01), Thominet
patent: 6619825 (2003-09-01), Natsume
patent: 20020067618 (2002-06-01), Woerner et al.
patent: 20040042212 (2004-03-01), Du et al.
patent: 2001-266620 (2001-09-01), None
patent: 2002-50214 (2002-02-01), None
patent: WO 9948721 (1999-09-01), None

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