G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01B3/00—Measuring instruments characterised by the use of mechanical techniques
G01B3/38—Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Length-Measuring Instruments Using Mechanical Means
(AREA)
A Measuring Device Byusing Mechanical Method
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Lentille de puissance optique variable, ensemble optique comprenant une telle lentille et dispositif de compensation visuelle comprenant un tel ensemble optique