Device for the acquisition of the instantaneous angular position

Details Device for the acquisition of the instantaneous angular position Device for the acquisition of the instantaneous angular position

1992-05-22

1993-09-21

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250236, 250561, G01D 530

Patent

active

052471730

ABSTRACT:
The present invention concerns device for the acquisition of the angular position of mobile means of the type including a luminous source emitting an incident beam in a known direction and a reflecting surface attached to the mobile means. The device also includes an array of elementary charge coupled sensors positioned so as to be at least partly scanned by the reflected beam. The device includes in addition optical means for limiting the width of the incident beam. The said array is connected to an electronic circuit producing a digital signal varying according to the position and/or the number of elementary sensors illuminated by the reflected beam.

REFERENCES:
patent: 3802779 (1974-04-01), Fletcher et al.
patent: 4127781 (1978-11-01), Sato
patent: 4152588 (1979-05-01), Klatt et al.
patent: 4616132 (1986-10-01), Kessler
patent: 4647145 (1987-03-01), Maeda et al.
Optical Engineering, vol. 26, No. 12, Dec. 1987, pp. 1245-1250; M. Rioux, et al.: "Design of a Large Depth of View Three-Dimensional Camera for Robot Vision".

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