Method for target-path correction of a load carrier and target-d

Details Method for target-path correction of a load carrier and target-d Method for target-path correction of a load carrier and target-d

1998-10-09

2000-09-26

Pham, Hoa Q.

Optics: measuring and testing

By polarized light examination

With light attenuation

356385, 356375, 212285, G01B 1100

Patent

active

061249327

ABSTRACT:
A target-detection device (64) is used for the target-path correction of a container (36) that is being moved by a crane or a traveling hoist to a destination. The device includes a directional beam-emitting unit having a plurality of laser-beam emitters (76). The orientation of the emitters (76) relative to one another is varied to increase and reduce the size of the detection region.

REFERENCES:
patent: 5048703 (1991-09-01), Tax et al.
patent: 5152408 (1992-10-01), Tax et al.

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