Patent ID: 6123604
Filing Date: 2000-09-26
Classification: B24B

Abstract:
An eyeglass lens grinding machine comprising:lens rotating means for holding and rotating a lens to be processed;abrasive wheel rotating means for rotating an abrasive wheel for grinding the lens on its own axis;biasing means for generating a pressure by biasing the lens rotating means toward the abrasive wheel rotating means during lens processing;abrasive wheel rotational state detecting means for detecting a state of rotation of the abrasive wheel caused by said abrasive wheel rotating means; androtation control means for variably changing the rotation of said lens rotating means on the basis of the result detected by said abrasive wheel rotational state detecting means, wherein when the abrasive wheel rotational state detecting means indicates that the rotational speed of the abrasive wheel is not more than a predetermined level, the rotation control means stops the rotation of the lens rotating means until the rotational speed of the abrasive wheel is more than said predetermined level.