Title:
AUTOMATIC LEVELING DEVICE AND METHOD OF HEAD LAMP FOR VEHICLE
Document Type and Number:
Japanese Patent JP2009234456
Kind Code:
A
Abstract:
To provide automatic leveling device and a method of a head lamp for a vehicle adjusting a tilting time of the head lamp according to speed for tilting the head lamp to improve accuracy for directing an optical axis of the head lamp in a desired direction.
In this automatic leveling device and the method, the optical axis 72 is directed in a prescribed direction by using a driving means 61 for vertically tilting the optical axis 72 of the head lamp 70 and a driving time calculation means 41 for calculating a driving time of the driving means 61 according to speed for vertically tilting the optical axis 72 by the driving means 61.
Inventors:
MIZUTANI MASAKAZU
YAHATA TADAKO
MITSUYANAGI TAKAMASA
YAHATA TADAKO
MITSUYANAGI TAKAMASA
Application Number:
JP2008084209A
Publication Date:
October 15, 2009
Filing Date:
March 27, 2008
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
B60Q1/115; F21S8/10; F21V14/00; F21W101/10
Domestic Patent References:
JPH09183336A | 1997-07-15 | |||
JP2006151050A | 2006-06-15 | |||
JP2002225624A | 2002-08-14 | |||
JP2008062663A | 2008-03-21 | |||
JP2004106770A | 2004-04-08 | |||
JP2007153142A | 2007-06-21 |
Attorney, Agent or Firm:
Shogo Honda
Toru Kabayama
Toru Kabayama