Patent ID: 8749771

Claim:
An apparatus for measuring a thickness of a lens, comprising: a first support; a first positioning element fixed to the first support, the first positioning element comprising a probe portion for contacting a first face of the lens; a second support spaced from the first support; a second positioning element movably mounted to the second support, the second positioning element comprising a probe portion for contacting a second face of the lens, the second face of the lens for being opposite to the first face of the lens; a third support comprising a base and an arm extending from the base, the arm of the third support being configured for supporting the lens thereon, the arm of the third support defining a groove in a top end thereof and two blocks formed in the groove, the two blocks abutting against the first face of the lens; and a measuring element; wherein the first positioning element is configured for holding the lens in position by using the probe portion thereof to abut against the first face of the lens, the second positioning element is movable towards the lens from a first position away from the lens, to a second position where the probe portion of the second positioning element abuts against the second face of the lens, the measuring element configured for calculating the thickness of the lens according to a distance between the first position and the second position.