LENS SHAPE MEASUREMENT DEVICE AND METHOD, METHOD OF PRODUCING EYEGLASS LENS, AND METHOD OF PRODUCING EYEGLASSES

A lens shape measuring apparatus measures a peripheral shape of a lens in order to measure the peripheral shape of the lens accurately according to a non-contact technique. The lens shape measuring apparatus includes: a lens holding mechanism section for holding the lens with the holding axis from t...

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Bibliographische Detailangaben
1. Verfasser:	INOGUCHI, Masaaki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTACT LENSES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	A lens shape measuring apparatus measures a peripheral shape of a lens in order to measure the peripheral shape of the lens accurately according to a non-contact technique. The lens shape measuring apparatus includes: a lens holding mechanism section for holding the lens with the holding axis from the side of a lens surface; and a laser displacement meter for measuring a lens peripheral shape by irradiating a laser beam to the periphery of the lens and receiving a reflected light thereof. The laser displacement meter is installed such that a light projecting section for projecting a laser beam and a light receiving section for receiving a laser beam are aligned in a direction perpendicular to an axis line of the holding axis. The lens shape measuring apparatus causes the lens holding mechanism section to change a lens holding position without changing the axial direction of the holding axis, and causes the laser displacement meter to irradiate a laser beam to the lens periphery at each lens holding position and to measure the peripheral shape of the lens.