Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes: a lens rotation shaft which holds and rotates the lens, the shaft being rotatable about a first axis; a grooving grinding stone which forms a groove in an edge surface of the lens; a holder which rotatably holds the grooving grinding stone; an inclination mechanism for relatively inclining the holder with respect to the lens rotation shaft to change inclination of a rotation axis of the grooving grinding stone with respect to the first axis; and a controller for obtaining desired inclination of the rotation axis of the grooving grinding stone correspondingly to a radius vector angle at each processing point of grooving locus, thereby controlling the inclination by the inclination mechanism.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes: a lens rotation shaft which holds and rotates the lens, the shaft being rotatable about a first axis; a piercing tool which pierces a hole in the lens; a holder which rotatably holds the piercing tool; and inclination means for relatively inclining the holder with respect to the lens rotation shaft to change inclination of a rotation axis of the piercing tool with respect to the first axis.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, comprises: a detecting unit, which detects an edge position of the lens based on inputted target lens shape data and layout data; a processing unit, which has at least one grinding tool and which processes the lens by relatively moving the lens with respect to the grinding tool, the at least one grinding tool being adapted to execute at least two types of processing including: a plane finish processing; a bevel finish processing; a plane polish processing; a bevel polish processing; a first groove processing; and a second groove processing; an input unit, which inputs data on ranges of the lens periphery and data on respective processing types to partially change the processing types to be executed on the lens periphery; a computing unit, which obtains processing data for the respective ranges, different in processing type, based on data on edge position and data on processing type corresponding respectively to the ranges; a

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes; a lens rotation shaft which holds and rotates the lens, the shaft being rotatable about a first axis; a grooving grinding stone which forms a groove in an edge surface of the lens; a holder which rotatably holds the grooving grinding stone; inclination means for relatively inclining the holder with respect to the lens rotation shaft to change inclination of a rotation axis of the grooving grinding stone with respect to the first axis; and control means for obtaining desired inclination of the rotation axis of the grooving grinding stone correspondingly to a radius vector angle at each processing point of grooving locus, thereby controlling the inclination by the inclination means.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, includes: a lens rotation shaft which holds and rotates the lens, the shaft being rotatable about a first axis; a piercing tool which pierces a hole in the lens; a holder which rotatably holds the piercing tool; and inclination means for relatively inclining the holder with respect to the lens rotation shaft to change inclination of a rotation axis of the piercing tool with respect to the first axis.

Abstract: In an eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, a lens is held and rotated, and a chamfering abrasive wheel rotating shaft axially supports at least one chamfering abrasive wheel and has a rotational axis different from an axis about which a rough abrasive wheel and a finish abrasive wheel are rotatable. The chamfering abrasive wheel is moved between a retreated position and a processing position. The chamfering abrasive wheel is urged toward the lens during chamfering processing. Position data of a corner portion of the periphery of the lens are detected based on target lens shape data of an eyeglass frame or a template and layout data of the lens with respect to a target lens shape.

Abstract: An eyeglass-lens processing apparatus for processing a subject lens to be fitted to an eyeglass frame, includes: a lens chuck shaft for clamping the lens; a rotating mechanism for rotating the lens chuck shaft; a first moving mechanism for moving the lens chuck shaft in a direction of a rotational axis thereof; a second moving mechanism for moving the lens chuck shaft in a direction substantially perpendicular to the rotational axis; a first feeler having a first contact point to be contacted with a front side refracting surface of the lens; a second feeler having a second contact point to be contacted with a rear side refracting surface of the lens; a support member for supporting the first and second feelers integrally or separately; and a control mechanism for controlling each of the rotating mechanism, the first moving mechanism and the second moving mechanism based on processing shape data so as to consecutively perform rotation and movement of the lens in a state where the first contact point is contact

Abstract: An eyeglass lens processing system, including: a data input unit, which inputs frame shape data for processing a lens to be fitted to an eyeglass frame and layout data for providing a layout of the lens with respect to a frame shape; a lens processing unit, having two shafts for clamping the lens, for grinding a periphery of the lens; a first conveying unit, which conveys a tray on which the lens is placed and to which a management code is applied, the management code interrelating the lens placed on the tray to the data inputted by the data input unit; a lens measuring unit, which obtains at least an optical center position of the lens; a second conveying unit that picks and holds the lens, disposes the lens at a predetermined position of the lens measuring unit, and mounts the lens to the shafts of the lens processing unit after measurement by the lens measuring unit; and an arithmetic unit, which obtains processing data based on: (1) data, read out based on the management code applied to the tray from the

Abstract: An eyeglass lens processing system includes: input means for inputting frame shape data and layout data; grinding means having holding means for sucking and holding the subject lens at one end of a rotating shaft for nipping and rotating the subject lens, for grinding the subject lens by a grinding wheel; lens conveying means for holding the subject lens placed at a predetermined position and conveying the subject lens to an intended position; amount-of-eccentricity measuring means for detecting a position of an optical center of the subject lens held by the lens conveying means and for obtaining an amount of eccentricity of the optical center of the subject lens with respect to a predetermined reference position; and calculating means for obtaining processing data for the sucked and held subject lens by causing the reference position and the center of the rotating shaft to be aligned with each other by the lens conveying means, on the basis of data on the frame shape, the layout data, and the amount of eccen

Abstract: A corneal surgical apparatus for incising a cornea of a patient's eye in a layered form includes: a suction ring unit, having a circular opening, that is to be vacuum-fixed onto a peripheral part of the cornea; a rotatable shaft; an eccentric pin projecting from a distal end of the shaft, the eccentric pin being located at a position offset from a rotational central axis of the shaft; and a cutting unit movable in an incising direction above the suction ring unit.

Abstract: An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens, comprises: a detecting unit, which detects an edge position of the lens based on inputted target lens shape data and layout data; a processing unit, which has at least one grinding tool and which processes the lens by relatively moving the lens with respect to the grinding tool, the at least one grinding tool being adapted to execute at least two types of processing including: a plane finish processing; a bevel finish processing; a plane polish processing; a bevel polish processing; a first groove processing; and a second groove processing; an input unit, which inputs data on ranges of the lens periphery and data on respective processing types to partially change the processing types to be executed on the lens periphery; a computing unit, which obtains processing data for the respective ranges, different in processing type, based on data on edge position and data on processing type corresponding respectively to the ranges; a

Abstract: A lens grinding apparatus with which an ordinary lens having a large diameter to work on and a lens for “granny's glasses” can be processed efficiently without employing dedicated cup receptacles and lens retainers and yet with a reduced potential for misalignment in the axis of the lens that occurs during processing. The apparatus has a first lens rotating shaft having mounted thereon a cup receptacle member that is so shaped as to enable the processing of a lens for “granny's glasses” and to which a lens fixing cup is to be fitted, a second lens rotating shaft having mounted thereon a lens retaining member that is so shaped as to enable the processing of the lens for “granny's glasses”.

Abstract: A corneal surgical apparatus for incising a cornea of a patient's eye in a layered form includes: a suction ring unit, having a circular opening, that is to be vacuum-fixed onto a peripheral part of the cornea; a rotatable shaft; an eccentric pin projecting from a distal end of the shaft, the eccentric pin being located at a position offset from a rotational central axis of the shaft; and a cutting unit movable in an incising direction above the suction ring unit.

Abstract: A corneal surgical apparatus for incising a cornea of a patient's eye in a layered form includes: a suction ring unit, having a circular opening, that is to be vacuum-fixed onto a peripheral part of the cornea; a rotatable shaft; an eccentric pin projecting from a distal end of the shaft, the eccentric pin being located at a position offset from a rotational central axis of the shaft; and a cutting unit movable in an incising direction above the suction ring unit.

Abstract: An eyeglass lens securing cup (1) securely mounted on an eyeglass lens has a positioning portion which engages a manipulator to determine a specified axial position and it is placed in position on a tray (400). The tray (400) is moved to a specified position by a tray transport apparatus (500). A lens transport apparatus (300) has the manipulator which, in correspondence with the positioning portion of the securing cup (1), maintains the specified axial position, picks up the securing cup (1) from the tray (400) and transports it to a machining shaft on a grinder (200). The eyeglass lens having refractive power can be transported while allowing the optical center of the lens and its axial angle to keep the desired relationships.

Abstract: An eyeglass lens grinding machine, which is designed to effectively utilize the grinding capability of abrasive wheels so as to perform efficient grinding operations. The eyeglass lens grinding machine includes a lens rotating section which holds and rotates a lens to be processed, an abrasive wheel rotating section which rotates an abrasive wheel for grinding the lens on its own axis, an abrasive wheel's rotational state detecting section which detects the state of rotation of the abrasive wheel caused by the abrasive wheel rotating section, and a rotation control section which variably changes the rotation of the lens rotating section on the basis of the result of the detection. The rotation control section issues a command to either stop or slow down the rotation of the lens if the load on the rotation of the abrasive wheel exceeds a predetermined reference level and issues a command to have the lens rotation return to the initial state if the load becomes lower than the reference level.

Abstract: A lens grinding apparatus is improved to ensure that the angular edge portions of an eyeglass lens are easily ground to a desired shape.

Abstract: An eyeglass lens grinding apparatus, which performs bevelling on an eyeglass lens while sufficiently reducing the variation in the size of the bevel being formed so that the finished lens can be fitted snugly in the wearer's eyeglass frame.

Abstract: In an eyeglass lens grinding apparatus, a material and a process condition of an eyeglass lens to be processed is input. A grinding wheel for grinding the lens is rotated at a variable rotational speed. That is, the lens is processed while variably changing the rotational speed of the grinding wheel in accordance with a preset value of the rotational speed of the grinding wheel based on the input material or a process condition of the lens. The processing, time period can be shortened and the quality of the process face can be improved.

Abstract: In a lens grinding apparatus, shape data of an eyeglass frame and layout data of an eyeglass lens for the eyeglass frame are input. Edge positions of front and rear surfaces of the eyeglass lens are measured on the basis of the input data. The position variation information of the front and rear surfaces of the lens with respect to a radius vector is input. An inclination angle of a finishing grinding wheel is stored. Edge positions after a finishing process are calculated on the basis of the measured edge positions, the input position variation information, and the inclination angle of the finishing grinding wheel. A chamfering grinding wheel for chamfering edge portions of a finish-processed eyeglass lens is controlled on the basis of the edge positions obtained by the edge position calculation. A chamfering process is easily performed, and particularly chamfering is uniformly performed.