眼鏡枠形状測定装置

Japanese Patent JP7413697

B2

Provided is an eyeglass frame shape measurement apparatus capable of satisfactorily acquiring a cross-sectional shape of a groove of a rim of an eyeglass frame. An eyeglass frame shape measurement apparatus for measuring a shape of an eyeglass frame includes a light-projecting optical system that irradiates a groove of a rim of the eyeglass frame with a measurement light beam emitted from a light source, and a light-receiving optical system that causes a detector to receive a reflected light beam of the measurement light beam reflected on the groove of the rim of the eyeglass frame. The light-projecting optical system and the light-receiving optical system are disposed inside the groove of the rim of the eyeglass frame in a radius vector direction. A light-projecting and light-receiving plane formed by a light-projecting optical axis of the light-projecting optical system and a light-receiving optical axis of the light-receiving optical system is disposed to be tilted with respect to a cutting plane where the groove of the rim is cut by the measurement light beam. The light source irradiates an inside of the rim to the groove of the rim with the measurement light beam, and the detector detects the reflected light beam inside the rim to acquire the cross-sectional shape of the groove of the rim.

Michihiro Takai
Takeshi Kyodo
Yuya Nakako
Minotsui Mattia
Codogno Nicola
Carallo Federico

JP2019178851A

January 16, 2024

September 30, 2019

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NIDEK CORPORATION

G01B11/24; G02C13/00

JP2012154709A
JP2012251816A
JP2001519025A
JP2002181516A

WO2019026416A1
WO2019049716A1

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