EP 0307657 B1 19941123 - Motor vehicle headlight.
Title (en)
Motor vehicle headlight.
Title (de)
Abblendlicht-Scheinwerfer.
Title (fr)
Projecteur pour véhicule automobile.
Publication
Application
Priority
DE 3731232 A 19870917
Abstract (en)
[origin: JPH0197301A] PURPOSE: To prevent a dazzling action at the edge and the stepped part of a reflector segment, by constituting the reflector with a plurality of segments each having a different geometric shape so that the transition parts of geometric shape of the segments have a common tangent. CONSTITUTION: A focal chain of two upper segments 6, 9 is near a reflector top part, within a range behind a coil, and a focal chain of two lower segments 12, 15 is on an incandescent coil 18 end part farther from a top part thereof. The downward displacement of a coil image generated when a focal distance moves continuously from the rear end to the front end, and vice versa, is achieved by appropriate reflector geometry. Therefore, arranging all the coil images below a light and shade boundary line can be also achieved. The different geometry of the segments continuously forms a total reflecting mirror without any steps between the segments. The transition parts of geometric shapes of the segments are constituted to have a common tangent, so that manufacture is facilitated, and a dazzling action is not generated at the edges or stepped parts of the segments.
IPC 1-7
IPC 8 full level
F21S 8/10 (2006.01); F21V 7/00 (2006.01); F21V 7/09 (2006.01)
CPC (source: EP US)
F21S 41/335 (2017.12 - EP US); F21S 41/164 (2017.12 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0307657 A2 19890322; EP 0307657 A3 19900314; EP 0307657 B1 19941123; DE 3731232 A1 19890330; DE 3852159 D1 19950105; JP 2654116 B2 19970917; JP H0197301 A 19890414; US 4924359 A 19900508
DOCDB simple family (application)
EP 88113557 A 19880820; DE 3731232 A 19870917; DE 3852159 T 19880820; JP 22766288 A 19880913; US 23719588 A 19880829