Title:
VEHICULAR LAMP SYSTEM, LIGHT DISTRIBUTION CONTROL DEVICE, AND LIGHT DISTRIBUTION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/220187
Kind Code:
A1
Abstract:
The present invention provides a vehicular lamp system comprising a light distribution control device that controls the formation of a light distribution pattern by a first lamp unit and a second lamp unit. The light distribution control device forms a combined high-illuminance pattern (42) for a region where a target does not exist. Moreover, a combined light blocking pattern is also formed for a preceding vehicle. Further, the light distribution control device controls the first lamp unit to form a fixed-illuminance pattern (46) for a specific target (A), controls the second lamp unit to form the fixed-illuminance pattern (46) or an illuminance-adjusted pattern in which the illuminance is adjusted such that the brightness of the specific target (A) approaches a target brightness in an image, and overlaps the light distribution patterns formed by the first lamp unit and the second lamp unit to form a combined medium-illuminance pattern (44).
Inventors:
MURAMATSU TAKAO (JP)
MARUYAMA YUTA (JP)
WATANO YUICHI (JP)
MARUYAMA YUTA (JP)
WATANO YUICHI (JP)
Application Number:
PCT/JP2022/017209
Publication Date:
October 20, 2022
Filing Date:
April 06, 2022
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
B60Q1/14
Domestic Patent References:
| WO2020208818A1 | 2020-10-15 |
Foreign References:
| JP2011111000A | 2011-06-09 | |||
| JP2020117155A | 2020-08-06 | |||
| JP2007182214A | 2007-07-19 | |||
| US20200114805A1 | 2020-04-16 | |||
| JP2016088224A | 2016-05-23 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
Download PDF: