Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1994-08-08
1995-09-05
Lazarus, Ira S.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362263, 362293, 362328, 362455, B60Q 104, F21V 900
Patent
active
054484537
ABSTRACT:
A vehicular headlamp that provides near-ultraviolet illumination of desired areas but which assures that sufficient brightness can be obtained in areas illuminated with visible light without having to combine the lamp with another type of headlamp. The headlamp includes a light-emitting unit accommodated in a lamp housing including a substantially parabolic reflector, a discharge bulb mounted inside the reflector to generate both visible light components and ultraviolet rays, and a light-emitting lens disposed in front of the reflector to irradiate the light reflected from the reflector in the forward direction. In addition, a bandpass filter adapted to absorptively remove visible light components and permit at least near-ultraviolet rays to pass therethrough is disposed in a light path other than the light path for the low-beam light conducted to the light emitting lens from the reflector so that a low-beam illuminating area is illuminated by both visible light components and near-ultraviolet rays to maintain sufficient brightness in the foregoing region. On the other hand, an illuminating area located above a clear cut line is illuminated mainly by the near-ultraviolet rays.
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Cariaso Alan B.
Koito Manufacturing Co. Ltd.
Lazarus Ira S.
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