Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1993-08-30
1995-11-21
Lazarus, Ira S.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362297, 362346, B60Q 104
Patent
active
054693390
ABSTRACT:
A reflector consists of a reflecting portion and a wall portion surrounding it and is rectangular when viewed from the front side. A reference curve is formed on a horizontal plane including the optical axis by connecting outer portions of a parabola having a focus F1 located on the optical axis and a focal length f1, and portions of two parabolas having foci F2 and F2' located on their axes parallel with the optical axis and a focal length f2 (>f1). A reflecting surface is formed as a collection of cross-sectional curves each obtained by cutting an imaginary paraboloid of revolution set for each point on the reference curve and having an axis extending along a ray reflected at that point after being emitted from the focus F1 by a vertical plane including the axis of the paraboloid of revolution.
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patent: 4731713 (1988-03-01), Perthus
patent: 4803601 (1989-02-01), Collot et al.
patent: 4811174 (1989-03-01), Kanzler et al.
patent: 5003435 (1991-03-01), Nakata
patent: 5034867 (1991-07-01), Mayer
Iiyama Katsuhiko
Uchida Naoki
Koito Manufacturing Co. Ltd.
Lazarus Ira S.
Quach Y.
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