Title:
物体検出装置
Document Type and Number:
Japanese Patent JP5598100
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accurately detect an object in a monitoring area even in the case where monitoring areas widely spread from the vicinity of a laser radar to a long distance.SOLUTION: In a monitoring area where a distance from a laser radar head 5 is long in the main scanning direction X of scanning light LB1, the degree of diffusion of reflected light LB2 is high and the intensity of the reflected light LB2 decreases. Therefore, a polygon mirror 11 and a light receiving unit 2 are arranged so that the reflected light LB2 of the scanning light LB1 emitted to the monitoring area far from the laser radar head 5 in the main scanning direction X has a wider luminous flux after reflected toward the light receiving unit 2 by the polygon mirror 11, compared to the reflected light LB2 of the scanning light LB1 emitted to a monitoring area close to the laser radar head 5. Thus, even in the case where the intensity of the reflected light LB2 of the scanning light LB1 emitted to the monitoring area far from the laser radar head 5 in the main scanning direction X is made high, the intensity of the reflected light LB2 of the scanning light LB1 emitted to the monitoring area close to the laser radar head 5 is prevented from being excessively increased.
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Inventors:
Taketoshi Takano
Application Number:
JP2010130390A
Publication Date:
October 01, 2014
Filing Date:
June 07, 2010
Export Citation:
Assignee:
Incorporated company IHI
International Classes:
G01S7/481
Attorney, Agent or Firm:
Hidekazu Miyoshi
Yukikuni Iwasaki
Masakazu Ito
Shun'ichi Takahashi
Toshio Takamatsu
Yukikuni Iwasaki
Masakazu Ito
Shun'ichi Takahashi
Toshio Takamatsu
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