US 6,386,744 B1Granted

Headlight for a vehicle with means for reducing glare

AssigneeRobert Bosch GmbH

InventorMichael Scholl

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Abstract

The headlight has a reflector (10) in which a light source (14) is mounted. A light ray stop (30 having a pot-shaped region (32) is associated with the light source (14) and arranged to block off a part of the light from the light source (14) so that it does not reach the reflector (10). The reflector (10) has a region (20), from which light is reflected so that it falls on the pot-shaped region (32). The pot-shaped region has openings (36) through which a portion of the light falling on this light ray stop (20) can pass into the pot-shaped region (32). Cover elements (38) are associated with these openings which prevent another part of the light from the light source in the pot-shaped region from passing out through the openings. They also reflect some of the light falling on the pot-shaped region near the openings through the openings and into the pot-shaped region. This device at least partially prevents light that falls on the pot-shaped region from being reflected as scattered light and forming an annoying glare.

Claims13

Dependent claims

A headlight for a vehicle, said headlight comprising a light source (14), a reflector (10) for reflecting light generated by the light source (14) and a light ray stop (30), said light ray stop (30) having a pot-shaped region (32), said pot-shaped region (32) having a circumference and being formed and arranged to block off a part of the light produced by the light source (14) so that said part of said light does not reach the reflector (10),

wherein said pot-shaped region (32) of the light ray stop has a wall (W) provided with a plurality of openings (36) through which a portion of the light reflected by a reflector region (20) of the reflector (10) near a peak portion (P) of the reflector and falling on the pot-shaped region (32) at least partially passes through the openings (36) into the pot-shaped region (32) of the light ray stop, and
wherein the pot-shaped region (32) has respective cover elements (38) associated with said openings (36) arranged so that another part of the light propagated directly from the light source (14) to said openings (36) is blocked off by said cover elements (38) and does not pass out from said pot-shaped region (32) through said openings (36), and so that said portion of said light reflected from said reflector region (20) of said reflector passes through the openings (36) into the pot-shaped region (32).

Dependencies are inferred from the claim text.