Head lamp device for vehicle

Details Head lamp device for vehicle Head lamp device for vehicle

1997-06-26

1999-07-06

Sember, Thomas M.

Illumination

Supported by vehicle structure

Light modifier

362554, 362516, 362322, F21V 800

Patent

active

059189738

ABSTRACT:
A head lamp device of a vehicle comprising a passing beam lamp unit, a driving beam lamp unit, and optical fibers connecting them together. A discharge lamp serves as a light source of the passing beam lamp unit. A reflecting mirror disposed ahead of the discharge lamp reflects directly forwardly emitted light from the discharge lamp, and concentrates the light into a condensing portion. The optical fibers guide the light concentrated into the condensing portion to the driving beam lamp unit. The light guided by the optical fibers is used as a light source of the driving beam lamp unit. A shutter mechanism shuts off the light guided by the optical fibers at the time of switching to passing beam, and passes the light guided by the optical fibers at the time of switching to driving beam. The head lamp device using a discharge lamp as a light source completely eliminates the disadvantage of a discharge lamp type head lamp, a very high cost. It also equalizes the color temperatures of the passing beam and the driving beam, and improves the balance of luminous intensity distribution, and forward visibility.

REFERENCES:
patent: 5050048 (1991-09-01), Hendrischk et al.
patent: 5147128 (1992-09-01), Windross
patent: 5321586 (1994-06-01), Hege et al.
patent: 5422792 (1995-06-01), Neumann
patent: 5567031 (1996-10-01), Davenport et al.
patent: 5707131 (1998-01-01), Li

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