Automotive headlamp forming multiple light distribution patterns with a single lamp

• Main Author: Naganawa, Masahito
• Format: Patent
• Language: English; French; German
• Published: 11.10.2017
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

A reflector (16, 16', 17) includes a first reflector portion (16A, 16'A, 17A) located above the central axis of a headlamp extending in the longitudinal direction of a vehicle, and a second reflector portion (16B, 16' B, 17B) located below the central axis. A first light source (LA) and a second light source (LB) are arranged such that: the light emitted from the first light source (LA) is reflected by the first reflector portion (16A, 16'A, 17A) to form a first light distribution pattern; and the light emitted from the second light source (LB) forms two partial light distribution patterns by being reflected with both the first reflector portion (16A, 16'A, 17A) and the second reflector portion (16B, 16'B, 17B), and a second light distribution pattern, which is different from the first light distribution pattern, is formed by combining the two partial light distribution patterns.