G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 17/42 (2006.01) G01S 7/481 (2006.01) G01S 17/87 (2006.01)
Patent
CA 2081841
ABSTRACT OF DISCLOSURE The invention concerns an apparatus for locat- ing an object with the aid of optical radiation. The apparatus comprises a light source (1) comprising a plurality of light elements (2); an optical detector (3); optical means (5,6) comprising light source optics (5) and detector optics (6); and a control unit (7) which is disposed to activate such light elements (2) as are desired, to locate the light signals incident on the location sensitive optical detector (3), and on the basis of the location of the active light element and of that of the detection site to calculate the distance of the object's surface by the triangulation principle. As taught by the invention, the light source (1) and the light source optics (5) are integrated to constitu- te a compact light transmitter unit (10), the light elements (2) belonging to the light source (1) being arranged close to each other and provided with joint light source optics (5). Similarly, the optical detec- tor (3) and the detector optics (6) are integrated to constitute a compact light receiver unit (18). The units (10,18) are disposed in immediate proximity to each other and, advantageously, to the control unit (7). (Fig. 6)
Keranen Heimo
Marszalec Janusz
Ridout & Maybee Llp
Valtion Teknillinen Tutkimuskeskus
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