Title:
RADAR DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP3595224
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem of the conventional vehicle radar device that when the beam scan angle is expanded by horizontal scanning, an unnecessary object at a distance on the side of a vehicle is detected, or interference with a beam of oncoming cars is caused.
SOLUTION: An electromagnetic wave transmitted by a primary radiator 1 disposed on a focal point of a reflecting mirror 2 is reflected by the reflecting mirror 2 to form an electromagnetic wave with a designated beam width, the electromagnetic wave is scanned right and left by a scanning means and applied to an object, an electromagnetic wave reflected from the object is received to detect the object. In this arrangement, shafts 3, 4 supporting the reflecting mirror 2 are disposed at an angle to the vertical line 7 so that the larger the angle of scanning right and left is, the more the electromagnetic wave directs downward, and the shafts 3, 4 are turned to scan the electromagnetic wave.
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Inventors:
Katsuhisa Kodama
Application Number:
JP31272499A
Publication Date:
December 02, 2004
Filing Date:
November 02, 1999
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01S7/02; G01S13/93; (IPC1-7): G01S13/93; G01S7/02
Domestic Patent References:
| JP4070201A | ||||
| JP11088029A | ||||
| JP4044238B2 | ||||
| JP11168322A | ||||
| JP10284930A |
Attorney, Agent or Firm:
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo
Keigo Murakami
Toshihide Kodama
Takenaka Ikuo
Keigo Murakami