Patent application number | Description | Published |
20080248720 | EYEGLASS LENS PROCESSING APPARATUS AND LENS FIXING CUP - In a two-step processing mode in which a cup for attaching a lens to a chuck axis is changed from a large diameter cup to a small diameter cup on the way of processing, a roughing path data computing unit for computing first roughing path data larger than the target lens shape data by a predetermined finishing margin, and second roughing path data having a radius vector larger by at least Δa than at least radius vector data of the large diameter cup; and a processing controller for roughing the peripheral edge of the lens based on the second roughing path data in response to a processing start signal, thereafter stopping the processing and further resuming the processing. The processing controller performs, when a processing resuming signal is inputted, processing control of either roughing and finishing, or finishing without roughing. | 10-09-2008 |
20090007444 | EYEGLASS FRAME SHAPE MEASURING APPARATUS - An eyeglass frame shape measuring apparatus comprises: a frame holding unit which holds a eyeglass frame in a desired position; a rotary base; a feeler holding unit which comprises a support shaft to which a feeler for measurement is attached, a first arm for holding the support shaft, an elastic body for urging the first arm so that the support shaft is urged outward with respect to a rotation center axis of the rotary base, and a first arm holding unit for holding the first arm to enable the support shaft to be inclined with respect to the rotation center axis; a detecting unit which detects movement of the first arm; and an arithmetic unit which obtains a three-dimensional movement position of the feeler to obtain the three-dimensional shape of the rim, on the basis of rotation of the rotary base and results of detection of the detecting unit. | 01-08-2009 |
20090011687 | EYEGLASS LENS PROCESSING APPARATUS - In an eyeglass lens processing apparatus for beveling a peripheral edge of an eyeglass lens, if the high curve lens processing mode is selected by the mode selector, a computing unit acquires a high curve bevel path for locating the bevel apex on a front surface curve of the eyeglass lens or for locating the bevel apex at a position shifted by a predetermined quantity from the front surface curve toward the rear side on the basis of the edge position information acquired by the edge position detector, thereby providing high curve beveling data for the rear surface beveling grindstone, or for the front surface and rear surface beveling grindstones; and a beveling controller bevels the peripheral edge of the eyeglass lens by the rear surface beveling grindstone, or by the front surface and rear surface beveling grindstones on the basis of the high curve beveling data. | 01-08-2009 |
20090036025 | EYEGLASS LENS PROCESSING APPARATUS - An eyeglass lens processing apparatus includes:
| 02-05-2009 |
20090170403 | EYEGLASS LENS PROCESSING APPARATUS - An eyeglass lens processing apparatus includes: a setting unit which sets points on an edge of a lens, where a line on a target lens shape and passing through the first and second points intersects a line on the target lens shape and passing through the third and fourth points; and a calculating unit which: obtains a first plane including a bisection point between the first and second points and perpendicular to the first line; obtains a second plane including a bisection point between the third and fourth points and perpendicular to the second line; obtains an intersection line of the first and second planes; obtains a bevel spherical surface so that a center of the bevel spherical surface is located on the intersection line and passes through a desired edge position; and obtains the bevel path on the basis of the bevel spherical surface and target lens shape data. | 07-02-2009 |
20100248590 | EYEGLASS LENS PROCESSING APPARATUS - An eyeglass lens processing apparatus includes: a processing chamber; a pair of lens chuck shafts which chucks an eyeglass lens; a lens rotating unit including a motor for rotating the lens chuck shafts; a processing tool which processes a periphery of the lens; an axis-to-axis distance changing unit for changing an axis-to-axis distance between a rotating shaft attached to the processing tool and the lens chuck shafts; a data input unit for inputting processing condition data including a target lens shape; a processing controller which controls the lens rotating unit and the axis-to-axis changing unit to process the lens based on the input processing condition data a camera which is disposed in the processing chamber and takes a video picture of the processing of the lens; and a memory which stores video pictures and the processing condition data. | 09-30-2010 |
20130203322 | EYEGLASS LENS PROCESSING APPARATUS - In an eyeglass lens processing apparatus, a roughing tool for roughing a periphery of an eyeglass lens cuts the periphery up to a roughing path without rotating an eyeglass lens in a first stage and the roughing tool moves along the roughing path while rotating the eyeglass lens in a second stage. A calculating unit for obtaining control data of the lens rotating unit at the second stage. The calculating unit obtains a first load torque applied to a lens chuck shaft at every rotation angle of the lens based on condition data, and obtains a rotation speed of the lens at which the first load torque per unit time becomes equal to or lower than a predetermined reference value. | 08-08-2013 |
20130232774 | EYEGLASS LENS PROCESSING APPARATUS - An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens includes: a lens chuck shaft configured to chuck the eyeglass lens; a shaft angle changing portion configured to change a shaft angle of the lens chuck shaft; a first processing tool unit including at least one spindle at which a first processing tool is provided; a second processing tool unit that is disposed to oppose the first processing tool unit and that includes at least one spindle at which a second processing tool is provided; and a controller configured to change one of the first and second processing tool unit to be used for processing the eyeglass lens to the other of the first and second processing tool by controlling driving of the shaft angle changing portion to change the shaft angle of the lens chuck shaft. | 09-12-2013 |
20130236585 | APPARATUS HAVING CUP ATTACHING UNIT - An apparatus including a cup attaching unit, includes: a lens support portion for supporting a lens on a reference axis extending in a vertical direction; a support arm to which an attaching portion to which the cup is attached is attached; a moving arm for support the support arm to be movable so that the attaching portion can be directed in a downward direction toward the lens support portion and in an upward direction or a forward direction; and a lever configured to be operated by the operation and rotate the support arm so as to direct the attaching portion in from the second direction to the first direction. The lever is provided at the support arm and lowers the attaching portion together with the moving arm after the attaching portion is directed in the downward direction. | 09-12-2013 |
20140020254 | EYEGLASS FRAME SHAPE MEASUREMENT APPARATUS - An eyeglass frame shape measurement apparatus includes a measuring unit measuring shapes of right and left rims of an eyeglass frame. Measuring modes include a first measuring mode in which whole peripheries of both rims are measured; a second measuring mode in which the whole periphery of one of the right and left rims; and a third measuring mode in which nose side portions of the left rim and the nose side portion of the right rim are partially measured. A controller drives the measuring unit to measure the whole peripheries of both rims in the first measuring mode, for driving the measuring unit to measure the whole periphery of one of the left and right rims in the second mode, and drive the measuring unit to measure partially the nose side portions of both rims in the third mode. | 01-23-2014 |
20140199917 | EYEGLASS LENS PROCESSING APPARATUS - An eyeglass lens processing apparatus includes: a lens rotation unit configured to rotate a lens chuck shaft; a processing tool rotational shaft to which a processing tool is attached; a shaft-to-shaft distance change unit that includes a carriage which holds the lens chuck shaft or the processing tool rotational shaft and is movable in a direction where a shaft-to-shaft distance between the lens chuck shaft and the processing tool rotational shaft changes by driving a motor, a movement member that is moved in the shaft-to-shaft distance direction, a connection member that connects the movement member and the carriage, and a deformation detecting sensor configured to detect a deformation of the connection member; and a controller configured to control the driving of the motor based on a detection result of the deformation detecting sensor. | 07-17-2014 |
20140287660 | APPARATUS HAVING CUP ATTACHING UNIT - A system includes: a cup attaching unit configured to attach a cup to a surface of an eyeglass lens; a processing apparatus main body that includes a housing in which a lens processing mechanism with a processing tool configured to process the eyeglass lens held by a lens chuck shaft is arranged; a display which is arranged at the housing and is configured to display an operation step; a signal input unit configured to input a switching signal to switch a screen of the display from a screen for a current operation step to a screen for a next operation step; and a controller configured to control the display to switch displaying the screen of the display from the screen for the current operation step to the screen of the next operation step based on the switching signal input by the signal input unit. | 09-25-2014 |
20140373368 | EYEGLASS FRAME SHAPE MEASURING APPARATUS - There is provided an eyeglass frame shape measuring apparatus includes an eyeglass frame holding unit which holds an eyeglass frame, and a measuring unit which measures a shape of a rim of the eyeglass frame by tracing a contour of the rim of the eyeglass frame. The measuring unit includes a tracing stylus which is inserted into a groove of the rim, a tracing stylus moving unit which moves the tracing stylus in a radial direction of the rim, and a rotating unit which rotates the tracing stylus moving unit about a first axis set to pass through an inside of the contour of the rim such that the tip of the tracing stylus traces the rim along the contour of the rim, and which is disposed on a rear side of the eyeglass frame held by the eyeglass frame holding unit. | 12-25-2014 |