JP2002196289A - Spectacle lens working method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly subject many and diversified kinds of boxed lenses to working to form holes, grooves, etc., for fitting the end faces etc., in the outer peripheral parts of the lenses with parts with good reproducibility by simple operations. SOLUTION: A spectacle lens 100 fitted with a spectacle lens holding jig 110 is brought into contact with the reference plane of a positioning reference plate 300 while its prescribed position is regulated by a spectacle lens fixing device 400 which is capable of fixing the spectacle lens 100 and regulating its position, by which the working section of the spectacle lens 100 is positioned in such a manner that the working section has a specified positional relation with the working reference position of the working device 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle lens processing method and apparatus for forming a hole, a notch, a groove, or the like for mounting a component on an outer peripheral end face of the spectacle lens.

[0002]

2. Description of the Related Art In recent years, rimless eyeglasses (rimless eyeglasses) have attracted attention due to advantages such as a wide field of view and lightness. As such non-rimmed glasses, there is a type called Nyroll, in which the periphery of the lower part of the lens is suspended with a nylon thread, and a type called a two-point or three-piece, in which a screw hole is formed through the lens and the screw is inserted through this hole. In addition, there is a so-called pin-feel type in which a non-penetrating hole is provided in the lens edge surface, and a pin-like projection of the spectacle lens holding member is inserted and fixed in the hole.

[0003] Each type of rimless spectacles described above has its own characteristics. However, for lenses of various thicknesses and various materials, a wide effective field of view, durability, aesthetics, light weight, etc. are sufficiently achieved. The design for securing it is not always easy, and it is not always satisfactory from the viewpoint of processing cost and the like.

Therefore, in recent years, rimless spectacles of a type in which a notch or the like is provided at an edge portion of an eyeglass lens and a mounting member is fitted and mounted in the notch or the like have been proposed. Japanese Patent No. 2997 describes this type of eyeglasses.
No. 438 (Japanese Unexamined Patent Application Publication No. 10-228000) and Utility Model Registration No. 2602605 (Japanese Utility Model Application
7-32620) or JP-A-2
No. 000-147435 is known.

[0005]

By the way, the spectacle lens usually has a different power for each individual wearer, and the shape of the lens also depends on the frame shape selected by the wearer.
For this reason, it is common that thickness and shape differ individually. Therefore, when processing the lens for rimless spectacles according to the above proposal with a numerically controlled processing device or the like, it is necessary to perform complicated positioning work for each one according to the shape and thickness, There is a problem that processing efficiency is extremely poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and has a process of forming holes, cutouts, grooves, and the like for mounting components on various lens-shaped lenses at the outer peripheral end face and the like. It is an object of the present invention to provide a spectacle lens processing method and apparatus capable of performing accurate and reproducible with simple operation.

[0007]

As a means for solving the above-mentioned problems, a first means is to use a spectacle lens after a spectacle lens lapping process for processing the spectacle lens so as to fit the spectacle frame shape. In the spectacle lens processing method for processing by a processing device, the processing by the processing device is a spectacle lens fixing device provided near a processing position of the processing device, and a fixing unit that fixes the spectacle lens in a predetermined positional relationship. The spectacle lens is fixed to a spectacle lens fixing device that adjusts the position of the spectacle lens fixed to the fixing portion with respect to the processing device to perform positioning, and as the fixing device, the fixing portion includes: As a jig for fixing the spectacle lens to the lapping device during the lapping process, the jig is previously attached to the processing reference position of the spectacle lens. A spectacle lens processing method is characterized by using the one having a structure for fixing the spectacle lens in the fixing device by securing the spectacle lens holding jig. The second means is a spectacle lens processing method for processing a spectacle lens of a predetermined shape by a processing device, wherein a spectacle lens holding jig mounting step of mounting a spectacle lens holding jig at a predetermined position of the spectacle lens; The eyeglass lens fixing device is provided near the processing position of the eyeglass lens fixing device that fixes the eyeglass lens in a predetermined positional relationship by mounting the eyeglass lens holding jig, and adjusts and positions the eyeglass lens. A spectacle lens fixing step of fixing the spectacle lens by attaching a lens holding jig, and a positioning reference plate provided in the vicinity of the processing device, wherein the spectacle lens is fixed at a predetermined position of the positioning reference plate. A position where the processing portion of the spectacle lens is configured to have a fixed positional relationship with a processing reference position of the processing device when the predetermined position is brought into contact with the processing portion. A positioning step of positioning the spectacle lens by contacting the predetermined position of the spectacle lens by adjusting the position of the spectacle lens fixing device to the predetermined position of the reference plate; and the spectacles positioned by the positioning step. And a processing step of processing the lens by the processing apparatus. The third means is a jig for fixing the spectacle lens to the edging machine before the edging of the spectacle lens for processing the spectacle lens to fit the shape of the spectacle frame as the spectacle lens holding jig. Eyeglasses according to a second means, wherein the eyeglass lens holding jig is attached beforehand to the eyeglass lens processing step by using an eyeglass lens holding jig which is previously attached to a processing reference position of the eyeglass lens. This is a lens processing method. A fourth means is the spectacles according to any one of the first to third means, wherein the processing device for processing the spectacle lens after performing the balling process is a cutting device by numerical control. This is a lens processing method. A fifth means is a spectacle lens processing apparatus for processing a spectacle lens after performing a spectacle lens edging process for processing a spectacle lens to match a spectacle frame shape, provided in the vicinity of a processing position of the processing apparatus. A spectacle lens fixing device, comprising: a fixing portion for fixing the spectacle lens in a predetermined positional relationship, and adjusting and positioning a position of the spectacle lens fixed to the fixing portion with respect to the processing device. The fixing portion fixes a spectacle lens holding jig which is attached to a processing reference position of the spectacle lens in advance as a jig for fixing the spectacle lens to the lapping device during the lapping process. A spectacle lens processing apparatus having a structure for fixing the spectacle lens to a fixing device. The sixth means is a processing device for processing the spectacle lens, and a spectacle lens fixing device provided near a processing position of the processing device, wherein the spectacle lens is fixed to the lapping device during the lapping process. A fixing part for fixing a spectacle lens holding jig, which is attached to a processing reference position of the spectacle lens in advance, in a predetermined positional relationship, and fixing the spectacle lens holding jig to the fixing part. A spectacle lens fixing device having a position adjusting mechanism for adjusting the position of the fixed spectacle lens with respect to the processing device while positioning the fixed spectacle lens with respect to the processing device, and provided near the processing position of the processing device. A predetermined position of the spectacle lens is brought into contact with a predetermined position of the positioning reference plate. There and a positioning reference plate having a positioning contact portion machining reference position and is configured to be fixed positional relationship of the machining apparatus,
By adjusting the position of the spectacle lens by the spectacle lens fixing device and bringing the predetermined position of the spectacle lens into contact with the predetermined position of the positioning contact portion of the position reference plate, the positioning of the spectacle lens is performed, and the processing is performed. An eyeglass lens processing apparatus, wherein the eyeglass lens is processed by an apparatus.

According to the above-mentioned first and fifth means, the eyeglasses which are previously attached to the processing reference position of the eyeglass lens as a jig for fixing the eyeglass lens to the balling device at the time of the balling process. Since the lens holding jig is used as it is to fix it to the fixing device, the fixing operation to the fixing device can be performed easily and accurately. According to the second, third and sixth means, a spectacle lens holding jig is attached to a predetermined position of the spectacle lens, and the holding jig is fixed to a fixing device. By bringing the predetermined position of the lens into contact, the processing portion of the spectacle lens can be positioned so as to have a fixed positional relationship with the processing reference position of the processing apparatus. This makes it possible to easily and quickly fix the processed portion of the lens at the processing position even if the lens has a different thickness or shape. According to the fourth means, cutting by numerical control can be efficiently performed.

[0009]

FIG. 1 is a flowchart showing a procedure of a method for processing an eyeglass lens according to an embodiment of the present invention. FIG. 2 is a diagram showing a configuration of an eyeglass lens processing apparatus according to an embodiment of the present invention.
FIG. 3 is an enlarged view of FIG. 2, FIG. 4 is a view showing a configuration of a spectacle lens holding jig, FIG. 5 is a view showing an example of groove processing, and FIG. FIG. Hereinafter, an eyeglass lens processing apparatus according to an embodiment of the present invention will be described first with reference to these drawings, and then a spectacle lens processing method according to an embodiment of the present invention will be described.

In FIG. 2, a spectacle lens processing apparatus according to this embodiment includes left and right spectacle lenses
The groove processing is performed on the edge of 0 by the numerically controlled cutting apparatus 200. That is, after the processing part of the eyeglass lens 100 is positioned and fixed by the positioning reference plate 300 and the fixing device 400 so that the processing reference position of the processing device 200, for example, has a fixed positional relationship with the position of the cutting blade 201, Process.

The cutting apparatus 200 performs predetermined processing such as groove processing and hole processing while rotating the cutting blade 201 according to a processing command signal from a computer or the like (not shown).

As shown in FIG. 3, the positioning reference plate 300 is a metal block having a substantially trapezoidal cross section, and a surface facing the cutting blade 201 is defined as an upper surface 301.
A lower surface 302 substantially parallel to the upper surface, a front surface 303 (rear surface is not shown), and left and right reference surfaces 30 which are left and right surfaces.
5, 306. The left and right reference surfaces 305 and 306 are inclined surfaces (15 to 45 with respect to a surface whose inclination angle is perpendicular to the upper and lower surfaces).
°), and these surfaces are surfaces that regulate the position in the left-right direction. The left and right reference planes 305 and 306
An upper and lower reference plane 30 for regulating the position in the vertical direction is provided at the lower end.
7, 308 are provided.

The upper and lower reference surfaces 307 and 308 are also inclined surfaces, and are 10 to 30 with respect to the upper and lower surfaces 301 and 302, respectively.
° The surface is inclined. Left and right reference planes 305, 306
A predetermined position of the spectacle lens 100, for example, an end face of a processed portion is brought into contact with the upper and lower reference surfaces 307 and 308, and one edge of the optical surface of the processed portion of the spectacle lens 100 is brought into contact with the upper and lower reference surfaces 307 and 308. Thus, when the position of the spectacle lens 100 is determined, the position of the processing part of the spectacle lens 100 necessarily has a specific positional relationship with the reference position of the cutting blade 201 of the cutting apparatus 200. .

The positioning reference plate 300 has a lower surface 302.
The support shaft 310 is attached to the evacuation mechanism 320, and the evacuation mechanism 320 is attached to the front-rear movable table 330. The front and rear moving table 330 is attached to the front and rear moving mechanism section 340 so as to be able to move back and forth, and the front and rear moving mechanism section 340 is fixed to the fixed base 350. The front / rear moving table 330 is capable of accurately adjusting the front / rear position of the position reference plate 300 to a designated position by rotating and adjusting the front / rear position adjusting knob 341.

When set to the state at the time of the positioning operation, the upper, lower, left and right positions of the positioning reference plate 300 necessarily have a specific positional relationship with the processing reference position of the processing apparatus 200. , Only the front and rear position can be changed by the front and rear moving table 330. As will be described later, since the front and rear position of the front and rear moving table 330 is determined by eye shape data of the eyeglass lens, edge thickness data, processing position data, and the like, a computer having a program for calculating the position of the front and rear moving table 330 from these values is used. The rotational position of the front / rear position adjustment knob 341 is adjusted based on the calculated value. After the position of the positioning reference plate 300 is determined in this manner, the end surface of the spectacle lens held by the spectacle lens fixing device 400 and the like are brought into contact with the above-described reference surface of the positioning reference plate 300, thereby positioning the spectacle lens 100. Done.

At the time of machining, the positioning reference plate 300 is moved by the retracting mechanism 320 to the cutting blade 201.
Is retracted to a position where it does not interfere with the processing of the spectacle lens 100 by. That is, the support shaft 310 is moved in a direction in which the clamp pin 321 is guided by the guide groove 322, and is arranged outside the processing locus of the cutting blade 201.

The spectacle lens fixing device 400 holds and adjusts the position of the spectacle lens 100, and brings the end face and the like of the spectacle lens 100 into contact with the reference surface of the positioning reference plate 300 to process the spectacle lens 100. The time position is determined and fixed. That is, the spectacle lens 1
In FIG. 4, as shown in FIG. 4, the eyeglass lens holding jig 110 is attached to a predetermined position at the time of edging. The spectacle lens fixing device 400 includes a spectacle lens mounting section 410 for mounting the spectacle lens holding jig 110 while the spectacle lens holding jig 110 is still attached.
Having.

The eyeglass lens mounting section 410 has a mounting hole 411
The eyeglass lens holding jig 110 is mounted in the mounting hole 411 via the rotation stopper 412. That is, although not shown, the rotation stopper 412 is fitted into the mounting hole 411 while being fixed in the rotation direction. In addition, the rotation stopper 412a is provided on the upper part of the rotation stopper 412.
Are formed. Therefore, the eyeglass lens holding jig 1
When the lens 10 is inserted into the mounting hole 411, the rotation stopping projection 412a is mounted in the mounting hole 411 in a state where it is fitted in the bearing groove 11 provided in the eyeglass lens holding jig 110. In this case, the spectacle lens holding jig 110
The center is a specific position of the spectacle lens 100, usually,
Since it is mounted so as to be located at the processing center and the direction of the bearing groove 111 is also determined in a specific direction, at least one position of the spectacle lens is specified while being mounted on the mounting portion 410. Then, each position can be specified by lens shape data and the like.

The spectacle lens mounting section 410 includes a vertical adjustment shaft 4
The vertical adjustment shaft 413 is attached to the bearing box 420 so as to be vertically movable (Z-axis direction). The bearing box 420 is attached to the left and right moving mechanism 430 so as to be movable left and right (X-axis direction). The left and right moving mechanism 430 is attached to the base 500. The bearing box 420 is provided with a lock knob 421 for locking the movement of the vertical adjustment shaft 413, and the left / right movement mechanism 430 is provided with a lock knob 431 for locking the left / right movement. The bearing box 420 is attached to the left and right moving mechanism 430 so as to be inclined at a predetermined angle (0 to 30 °) with respect to the vertical direction. Since it is preferable that this mounting angle is set to an appropriate value according to the base curve of the lens,
In this embodiment, an example in which the mounting angle is fixed is described, but an angle adjusting mechanism may be provided as necessary.

A fixed clamp bar 440 is attached to the vertical adjustment shaft 413, and a movable clamp bar 441 is attached to the fixed clamp bar 440 so as to be movable up and down. The clamp head 44 is extended to a position above the lens mounting portion 410, and is attached to the tip of the eyeglass lens mounting portion 410.
2 are installed. The moving clamp bar 441 is
Two guide poles 443 whose lower ends are fixed to the fixed clamp bar 440 penetrate and are vertically movable. Also, the other side of the screw rod 444 in which one side is screwed into the fixed clamp bar 440 is the movable clamp bar 4.
It is rotatably fixed to 41. Therefore, the knob formed on the other end of the screw rod 444 is
5, the movable clamp bar 441 is moved, and the clamp head 442 is moved to the spectacle lens mounting portion 41.
This is pressed against the spectacle lens 100 attached to the lens 0 to fix it.

In the spectacle lens fixing device 400, the position of the spectacle lens 100 in the rotation direction (circumferential direction) and the position in the front-rear direction (Y-axis direction) are fixed in a state where the spectacle lens 100 is fixed. However, the position in the vertical direction (Z-axis direction) and the horizontal direction (X-axis direction) can be adjusted. The positions in the vertical direction (Z-axis direction) and the horizontal direction (X-axis direction) are positioned by the positioning reference plate 300.

That is, the spectacle lens fixing device 400
While the spectacle lens 100 is fixed to the lens, the spectacle lens mounting unit 410 and the vertical adjustment shaft 413 to which the fixed clamp bar 440 and the moving clamp bar 441 are attached are moved, and at the same time, the vertical adjustment shaft 413 is moved by the left and right moving mechanism 430. Move left and right with the bearing box 420,
The eyeglass lens 100 is positioned by bringing the end surface of the eyeglass lens 100 or the like into contact with each of the above-described reference surfaces of the positioning reference plate 300. As a result, the specific position of the spectacle lens 100, for example,
It has a specific relationship with the machining reference position of 00. Therefore,
By sending a predetermined processing command signal to the processing device 200, predetermined processing can be performed.

The example shown in FIG. 2 is an example in which the left and right lenses are simultaneously positioned to process the yoke mounting groove and the bridge mounting groove. That is, as shown in FIG. 5 and FIG. 6, the yoke mounting groove is a yolo 150 on the ear end of the spectacle lens 100 after the edging.
And a groove 101 to be bonded and fixed. Also,
The bridge attachment groove means a groove for fitting both ends of the bridge 160.

In this processing, after the above-described positioning, the positioning reference plate 300 is retracted, and for example, the lens on the left side of the drawing is cut by the cutting blade 201 to form a groove for attaching a lip. Next, the cutting blade 201 is moved to process the right lens. When this processing is completed, the left and right lenses are exchanged, and a groove for bridge mounting is processed in the same manner. In this case, the processing data is sent from a computer (not shown) as described above.

Next, an eyeglass lens processing method according to the embodiment will be described with reference to FIG. In FIG. 1, the lens means an unprocessed round lens. As this unprocessed round lens, a lens having a predetermined power and a predetermined size is selected from the prescription of the eye of the spectacle wearer, other necessary prescriptions, the shape data of the spectacle frame, and the like.

Layout As a prerequisite for selecting the round lens, first, a lens layout is made. A lens layout is a method of edging a round lens in accordance with the shape of a frame, fitting the frame into a frame, and fitting the frame with a spectacle wearer so that the center of the pupil of the wearer coincides with the optical center of the lens. This is to arrange the position of the optical center in the sliding shape (= lens shape = geometric shape). That is, in general, due to the difference between the shape and size of the frame and the face size of the wearer,
When a spectacle frame is worn, it is rare that the pupil position coincides with the center position of the geometrical shape of the frame (lens shape). Therefore, it is necessary to perform an arrangement for correcting this. In other words, the shift amount between the geometric center and the optical center in the target lens shape is obtained, the geometric center is shifted by the shift amount from the optical center of the round lens, and the geometric center is set as the center of the shape to be edged. .

Blocking Next, blocking is performed based on the layout result. This blocking refers to a spectacle lens holding jig 110 (see FIG. 4) for fixing a lens to a lens fixing shaft of the edging machine when edging is performed by the edging machine.
A predetermined position of the spectacle lens, for example, the optical center of the lens,
Alternatively, it is to be mounted at the geometric center position.

For mounting, the spectacle lens holding jig 110 is attached to the spectacle lens 100 with a strong and thin double-sided tape interposed between the spectacle lens 100 and the spectacle lens holding jig 110. . Also, in that case, since the spectacle lens is cut while applying cutting water, the double-sided tape needs to be rich in water resistance, and furthermore, the lens may be shaken or displaced when cutting the lens or processing the lateral groove. To avoid this, the thickness is preferably 0.5 mm or less. As a method of attaching the spectacle lens holding jig 110 to the spectacle lens 100, another method may be used. The surface to be attached may be the convex side or the concave side of the lens.

[0029] The lens shape cut lens shape cut is to edged to fit round lens frame shape, a lens fixed shaft of the edging machine spectacle lens holding jig 110 attached to the spectacle lens 100 It is processed by a method such as shape copying grinding while rotating.

The spectacle lens 100 on which the lens clamp edging process has been completed is mounted on the spectacle lens mounting section 410 with the spectacle lens holding jig attached, and the movable clamp bar 441 is lowered to move the clamp head 442 to the spectacle lens. The spectacle lens 100 is fixed by pressing against the lens 100. Note that the spectacle lens 100
The fixing method is not limited to the above embodiment, but may be an air system, a hydraulic system or an electric motor system in addition to the screw clamp.

Setting of Reference Plate (Bridge Side) After fixing the eyeglass lens 100, the positioning reference plate 300 is set. That is, the front / rear position of the positioning reference plate 300 is accurately adjusted to the designated position by rotating and adjusting the front / rear position adjustment knob 341.
This position differs depending on the lens type and size, and in this embodiment, the operator automatically reads the work instruction sheet on the computer to display the set position on the display of the computer. The operator sets the position of the positioning reference plate 300 according to the value. Note that this adjustment may be performed not by a manual operation but by an automatic adjustment mechanism directly connected to a computer.

Positioning (bridge side) Next, the clamped spectacle lens 100 is brought into contact with the reference surface of the positioning reference plate 300 to be positioned.
The position of the positioning reference plate 300 is accurately captured by the NC processing machine in a three-dimensional space as a reference point, and the cutting blade 201 moves in accordance with each item based on the position of the positioning reference plate. Is programmed. For this reason, the lens set in accordance with the positioning reference plate can process a predetermined shape at a predetermined position.

The abutting portion of the positioning reference plate is sharp at one point so as to be in contact with the lens. Even if the lens is slightly scratched by this sharpness, this portion is cut by cutting in the next step. There is no particular problem. The reference planes 307 and 308 of the positioning reference plate 300 escape at an angle of about 20 degrees with respect to the horizontal plane in this embodiment. For this reason, for most lens curves of the convex shape of the lens, the lens edge and the reference surface come into contact at one point.

Reference plate offset When the above positioning is completed, the positioning reference plate 300
Is retracted outside the processing locus of the cutting blade 201. In the present embodiment, a method has been described in which the positioning reference plate 300 is pressed down and then rotated at a right angle to fix it. However, the method is not particularly limited. As a result, the positioning reference plate 300
Any method can be used if it can be shifted to a position where it does not interfere with the cutting blade during processing.

Bridge side NC cutting Next, the cutting blade 2 is numerically controlled by the processing apparatus 200 by numerical control.
01 is moved from the contact position of the positioning reference plate 300 to a position determined in the Z-axis direction, and cut by a fixed distance in the X-axis direction. In the present embodiment, the cutting direction is moved only in the X-axis direction parallel to the datum line, but the processing direction is not particularly limited. The object may be moved smoothly on the XY plane, or may be moved to a predetermined shape (for example, an oval shape). Further, not only the XY plane but also the Z direction may be moved together. By doing this,
It becomes possible to provide grooves of various shapes with one cutter.

In this embodiment, the number of revolutions of the cutting blade 201 is 1,
000-3,000r. p. m. However, there is no particular limitation on the type of glass to be processed and the shape of the cutter. At the time of cutting, it is desirable to cool with air or cutting water in order to prevent the lens from being melted out by processing heat.

[0037] Loosen the clamp that secures the lens unclamped lens, remove the lens. The left and right lenses fixed to the left and right interchangeable lens fixing devices 400 are interchanged. In that case, set so that the vertical direction does not change. The lens with the replaced lens clamp is fixed in the same manner as above. The reference plate 300 that has been retracted from the reference plate onset is returned to the set position. Reference Plate Position Setting (Yoroi Side) Positioning The reference plate 300 is set to a position where the armor can reach. The operator sets the position of the positioning reference plate 300 in accordance with the set value on the armature side displayed on the display of the computer.

Positioning (Yoroi side) In the same manner as described above, the spectacle lens 100 is brought into contact with the reference surface of the positioning reference plate 300 to fix the spectacle lens at a predetermined position. Reference plate offset The plate 300 is retracted to the positioning reference plane in the same manner as described above. In the same manner as described above, the cutting edge 201 moves to a fixed position in the Z-axis direction from the contact position of the cutting blade 201 positioning reference plate 300, and performs constant distance cutting in the X-axis direction. Lens removal Loosen the clamp on the spectacle lens 100 and remove the lens.

According to the above-described embodiment, without removing the eyeglass lens holding jig fixed to the lens which has been subjected to the ball-sliding process, the jig remains fixed and the groove processing jig is fixed. Positioning and fixing can be performed. Thereby, the groove processing for processing the groove inward from the end face of the spectacle lens toward the lens can be accurately and reproducibly processed with a simple operation for a variety of lens-shaped lenses. . Further, there is obtained an effect that a series of operations from the ball processing to the groove processing of the material lens can be made more efficient.

FIG. 7 is a view showing a configuration of an eyeglass lens processing apparatus according to another embodiment of the present invention. The spectacle lens processing apparatus shown in FIG. 7 is an example of an apparatus in which the spectacle lens 100 is held with its convex side facing upward, and cutting is performed by applying a cutting blade 201 from the convex side of the lens. That is, in the above-described embodiment, an example in which the convex surface of the lens 100 is held so as to face downward and the lens 100 is processed from the concave surface side is described. This is an example of an apparatus configured to hold and process in reverse to the case of the above-described embodiment.

In this embodiment, since the lens surface is merely held in reverse to the above-mentioned embodiment, the structure thereof is also composed of the same portions and portions having different structures in detail but having substantially the same functions. ing. Therefore, in the following description, portions having the same structure are denoted by the same reference numerals as those in the above-described embodiment, and portions having different structures but functionally the same as those in the above-described embodiment. The reference numerals obtained by adding 1000 to the numerical values of the cases are given, and explanations that may be duplicated will be omitted as appropriate.

In FIG. 7, the spectacle lens processing apparatus according to this embodiment is, for example, a numerically controlled cutting processing apparatus 200 on the edges of the left and right spectacle lenses 100 in a circle indicated by a dotted line in FIG. It is used when performing groove processing or the like having an opening on the convex surface side as shown in the figure.

The positioning reference plate 1300 is the same as the positioning reference plate 3 in the above-described embodiment (see FIGS. 2 and 3).
00 is inverted and attached to the support shaft 310, and the other structure is the same as that of the above-described embodiment. Therefore, in FIG. 7, a portion corresponding to the reference surface 307 of the above-described embodiment is a reference surface 1307, and in FIG. 7, a portion where the end surface of the lens 100 is in contact corresponds to the reference surface 308 of the above-described embodiment. A reference surface is formed, and positioning is performed by bringing a processing portion of the lens 100 into contact with the reference surface. The evacuation mechanism 320 to which the support shaft 310 is attached,
30, the front-rear moving mechanism 340, the fixed base 350, and the like are the same as those in the above-described embodiment.

The spectacle lens fixing device 1400 has the following configuration. That is, the left and right moving mechanism 14 is attached to the base 500.
30 is fixed. This left and right moving mechanism 1430 has
The bearing box 420 is fixed by an L-shaped fitting for attachment. A vertical adjustment shaft 1413 is attached to the bearing box 420 so as to be vertically movable (Z-axis direction). The bearing box 1420 is provided with a lock knob 1421 for locking the movement of the vertical adjustment shaft 1413, and the left / right movement mechanism 1430 is provided with a lock knob 1431 for locking the left / right movement. The bearing box 1420 is attached to the left / right moving mechanism 1430 so as to be inclined at a predetermined angle (0 to 30 °) with respect to the vertical direction. Since this mounting angle is preferably set to an appropriate value in accordance with the base curve of the lens, this embodiment shows an example in which the mounting angle is fixed, but an angle adjusting mechanism may be provided as necessary. .

A fixed clamp bar 1440 is attached to the vertical adjustment shaft 413 by a fixing bracket 1414, and a movable clamp bar 1441 is attached to the fixed clamp bar 1440 so as to be vertically movable. That is, two guide poles 1443 whose lower ends are fixed to the fixed clamp bar 1440 are provided through the movable clamp bar 1441 so as to be vertically movable. Also, the moving clamp bar 144
The other side of the screw rod 1444 having one side screwed into 1 is rotatably fixed to a fixed clamp bar 1440, and the knob 1445 formed at the end of the other side of the screw rod 1444 is rotated. This causes the moving clamp bar 1441 to move up and down.

A spectacle lens mounting section 410 is mounted and fixed to the distal end of the fixed clamp bar 1440. Further, a clamp head 1442 is fixed to the tip of the movable clamp bar 1441. Therefore,
By rotating the knob 1445 of the screw rod 1444, the movable clamp bar 1441 is moved, and the clamp head 1442 is pressed against the spectacle lens 100 mounted on the spectacle lens mounting portion 410 to fix it.

The spectacle lens fixing device 1400 holds the spectacle lens 100 with the spectacle lens 100 fixed.
Rotation direction (circumferential direction) position and front-back direction (Y-axis direction)
Are uniquely determined, but the positions in the vertical direction (Z-axis direction) and the horizontal direction (X-axis direction) can be adjusted. The positions in the up-down direction (Z-axis direction) and the left-right direction (X-axis direction) are positioned by the positioning reference plate 1300. According to this embodiment, the positioning can be performed with the convex surface of the lens 100 facing upward, and the processing shown in the dotted circle in FIG. 7 can be performed efficiently.

In the above embodiment, the positioning is performed by bringing the predetermined position of the spectacle lens into contact with the predetermined position of the positioning reference plate. Instead of using the positioning reference plate, the positioning of the spectacle lens is performed. A contact or non-contact type position detecting means capable of detecting the position when the predetermined position of the image becomes a specific position may be used. That is,
For example, a position detecting means having a position detecting probe and having a position detecting probe for transmitting position information of the contact point when an object comes into contact with the probe may be used. Instead of the contact-type position detection probe, a position detection unit using a device that performs non-contact position detection using an electromagnetic wave or the like may be used.

[0049]

As is apparent from the above description, the present invention provides a spectacle lens fixing device which can fix a spectacle lens to which a spectacle lens holding jig is attached, and adjust the position of the spectacle lens. By adjusting the predetermined position of the spectacle lens and contacting the same, the processing portion of the spectacle lens is positioned so as to have a fixed positional relationship with the processing reference position of the processing apparatus. Obtain eyeglass lens processing method and apparatus that enables accurate and reproducible processing for forming holes or grooves for component attachment on the lens outer peripheral end face etc. for the lens of lens shape with a simple operation I have.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a procedure of a method for processing an eyeglass lens according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of an eyeglass lens processing apparatus according to an embodiment of the present invention.

FIG. 3 is an enlarged view of FIG. 2;

FIG. 4 is a diagram showing a configuration of a spectacle lens holding jig.

FIG. 5 is a diagram showing an example of groove processing.

FIG. 6 is a diagram showing an example of eyeglasses to which a yoke and a bridge are attached after groove processing.

FIG. 7 is a diagram showing a configuration of an eyeglass lens processing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

100: spectacle lens, 200: processing device, 300: positioning reference plate, 400: spectacle lens fixing device.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yasushi Sakai 2-7-5 Nakaochiai, Shinjuku-ku, Tokyo F-term in Hoya Corporation (reference) 2H006 DA02 3C049 AA03 AB05 AB08 AC01

Claims (6)

[Claims] 1. A spectacle lens processing method for processing a spectacle lens after performing a spectacle lens edging process for processing a spectacle lens to match the shape of a spectacle frame by a processing device, wherein the processing by the processing device is performed by the processing. An eyeglass lens fixing device provided in the vicinity of a processing position of the device, comprising a fixing portion for fixing the eyeglass lens in a predetermined positional relationship, and adjusting a position of the eyeglass lens fixed to the fixing portion with respect to the processing device. And fixing the spectacle lens to a spectacle lens fixing device for positioning. The fixing device is a fixing device for fixing the spectacle lens to the balling device at the time of the balling process. The spectacle lens is fixed to the fixing device by fixing the spectacle lens holding jig, which is attached to the processing reference position of the spectacle lens in advance. Eyeglass lens processing method is characterized by using a material having a constant structure. 2. A spectacle lens processing method for processing spectacle lenses of a predetermined shape by a processing device, comprising: a spectacle lens holding jig mounting step of mounting a spectacle lens holding jig at a predetermined position of the spectacle lens; The spectacle lens fixing device, which is provided near the processing position and fixes the spectacle lens in a predetermined positional relationship by mounting the spectacle lens holding jig, and adjusts and positions the spectacle lens, A spectacle lens fixing step of fixing the spectacle lens by attaching a holding jig, and a positioning reference plate provided near the processing device, wherein a predetermined position of the spectacle lens is set at a predetermined position of the positioning reference plate. A position where the processing portion of the spectacle lens is in a fixed positional relationship with a processing reference position of the processing device when the positions are brought into contact with each other. A positioning step of positioning the spectacle lens by contacting the predetermined position of the spectacle lens by adjusting the position of the spectacle lens fixing device to the predetermined position of the positioning reference plate, and determining the position by the positioning step. And a processing step of processing the spectacle lens by the processing apparatus. 3. A spectacle lens holding jig, as a jig for fixing the spectacle lens to a spectacle lens processing apparatus before the spectacle lens polished processing for processing the spectacle lens to fit the spectacle frame shape. 3. The eyeglass lens processing according to claim 2, wherein the eyeglass lens holding jig is attached to a processing reference position of the eyeglass lens, and the eyeglass lens holding jig attaching step is performed before the eyeglass lens edging. Method. 4. The spectacle lens processing according to claim 1, wherein the processing device for processing the spectacle lens after performing the balling process is a cutting device by numerical control. Method. 5. A spectacle lens processing apparatus for processing a spectacle lens after subjecting a spectacle lens to a spectacle frame shape so as to fit the spectacle lens into a spectacle frame shape, wherein the spectacles provided near a processing position of the processing apparatus. A lens fixing device, comprising: a fixing portion for fixing the spectacle lens in a predetermined positional relationship, and adjusting the position of the spectacle lens fixed to the fixing portion with respect to the processing device to position the spectacle lens fixing device. The fixing portion fixes a spectacle lens holding jig which is attached to a processing reference position of the spectacle lens in advance as a jig for fixing the spectacle lens to the polished processing device at the time of the polished processing. A spectacle lens processing apparatus having a structure for fixing the spectacle lens to a fixing device. 6. A processing device for processing a spectacle lens, and a spectacle lens fixing device provided near a processing position of the processing device, wherein the spectacle lens is fixed to the lapping device during the lapping process. A fixing part for fixing a spectacle lens holding jig, which is attached to a processing reference position of the spectacle lens in advance, in a predetermined positional relationship, and fixing the spectacle lens holding jig to the fixing part. A spectacle lens fixing device having a position adjusting mechanism for adjusting the position of the fixed spectacle lens with respect to the processing device by positioning the fixed spectacle lens with respect to the processing device, and provided near the processing position of the processing device. A predetermined position of the spectacle lens is brought into contact with a predetermined position of the positioning reference plate. Has a positioning reference plate having a positioning contact portion configured to be in a fixed positional relationship with the processing reference position of the processing device, wherein the position of the spectacle lens is adjusted by the spectacle lens fixing device. A spectacle lens characterized in that the spectacle lens is positioned by contacting a predetermined position of the spectacle lens with a predetermined position of a positioning contact portion of the position reference plate, and the spectacle lens is processed by the processing device. Processing equipment.