Patent ID: 8113912
Filing Date: 2012-02-14
Classification: B24B

Abstract:
1. An eyeglass lens processing apparatus comprising: a processing chamber in which a lens chuck for holding an eyeglass lens and a roughing grindstone and a finishing grindstone for processing the lens are provided; a grinding water supply unit which includes a first nozzle for ejecting grinding water, the grinding water ejected from the first nozzle being sprayed toward a processing point of the lens processed by the grindstones, a first tube for supplying the grinding water from a water service pipe or a water tank to the first nozzle, and a first switch unit for turning on and off a supply of the grinding water to the first nozzle; a cleaning water supply unit which includes a second nozzle for ejecting cleaning water, the cleaning water ejected from the second nozzle cleaning processing refuse of the lens scattered in the processing chamber, a second tube for supplying the cleaning water from the water service pipe or the water tank to the second nozzle, and a second switch unit for turning on and off a supply of the cleaning water to the second nozzle; a lens material selection unit which inputs a selection signal for a material of the lens; and a control unit which controls each driving of the first and second switch units on the basis of the selection signal for the material of the lens, wherein on the basis of the selection signal indicating plastic, the control unit controls the first switch unit to turn on the supply of the grinding water in whole processing processes, and controls the second switch unit to turn off the supply of the cleaning water in the whole processing processes or temporarily turn on the supply of the cleaning water for a short time compared to the whole processing processes.