JP7268308B2 - cup mounting device - Google Patents

Description

The present disclosure relates to a cup attaching device for attaching a cup to a spectacle lens.

2. Description of the Related Art A cup attachment device is known for attaching a cup, which is a processing jig used when processing the peripheral edge of a spectacle lens, to an unprocessed spectacle lens. For example, in Patent Document 1, a spectacle lens is supported by a support pin, and a cup is attached to an appropriate position of the spectacle lens.

JP 2013-212573 A

In the above cup mounting device, when a spectacle lens having a large difference in curvature between the front surface and the rear surface of the spectacle lens is placed on the support pins, and when the center position of the spectacle lens is shifted and placed on the support pins in an eccentric state. , etc., the support of the spectacle lens becomes unstable, and there are cases where the cup cannot be attached with high accuracy. On the other hand, it is conceivable to stabilize the support of the spectacle lens by freely rotating the support pin and attach the cup. It becomes a complicated configuration.

A technical problem of the present disclosure is to provide a cup attachment device capable of appropriately attaching a cup to a spectacle lens in view of the above-described conventional technology.

In order to solve the above problems, the present disclosure is characterized by having the following configuration.

(1) A cup mounting device according to a first aspect of the present disclosure is a cup mounting device for mounting a cup, which is a processing jig, on a spectacle lens, in which the front surface of the spectacle lens and the mounting surface of the cup are kept parallel. By using the front surface of the spectacle lens as the reference surface for attaching the cup, the first lens supporting means for supporting the spectacle lens, the rear surface of the spectacle lens, and the mounting surface of the cup are kept parallel. a second lens support means for supporting the spectacle lens with the reference surface for mounting the cup as the rear surface of the spectacle lens; and switching between the first lens support means and the second lens support means in the cup mounting device. The spectacle lens is characterized by comprising switching means and cup attachment means for attaching the cup to the spectacle lens.

It is an external view of a cup mounting device. It is a figure which shows a lens support part. It is a figure which shows a lens holding mechanism. It is a figure which shows a lens measurement mechanism. It is a figure which shows a cup attachment mechanism. It is a figure which shows the state which mounted the high curve lens with a large difference of a curvature on each lens support part. It is a figure which shows the state which mounted the lens with a small difference of curvature on each lens support part. It is a figure which shows the control system of a cup attaching device. It is an example of an axis striking screen. It is a figure which shows the state from which the lens holding mechanism was removed.

<Overview>
An outline of a cup attaching device according to an embodiment of the present disclosure will be described. In addition, the items classified by <> below can be used independently or in association with each other.

<Lens support means>
For example, the cup mounting device (eg, cup mounting device 1) in this embodiment includes lens support means (eg, lens support mechanism 10). The lens support means supports the spectacle lens by placing the spectacle lens thereon. The lens support means may have a first lens support means (eg, first lens support portion 15a) and a second lens support portion 15b. In this embodiment, the front surface of the spectacle lens is used as a reference plane by the first lens supporting means, and the rear surface of the spectacle lens is used as a reference plane by the second lens supporting means. The reference surface is a surface that serves as a reference when attaching the cup to the spectacle lens, and may be a surface parallel to the attachment surface of the cup. In this case, "parallel" means that the normal line at the intersection of the reference axis (the axis orthogonal to the mounting surface of the cup) when attaching the cup to the spectacle lens and the lens surface (front or back surface) of the spectacle lens coincides. may be in a state where Also, the reference surface may be provided on either the front surface or the rear surface, depending on the shape of the front and rear surfaces of the spectacle lens (eg, curve values, etc.).

<First Lens Support Means>
The first lens support means may support the spectacle lens by keeping the front surface (surface) of the spectacle lens and the mounting surface of the cup parallel to the front surface of the spectacle lens as a reference surface for mounting the cup. For example, the first lens support means may have a first support pin (eg, support pin 21). The first support pin may consist of a plurality of pins (eg, three pins, etc.). The first support pin may be a support pin for tilting a contact surface between the first support pin and the rear surface of the spectacle lens mounted on the first support pin with respect to the mounting surface of the cup. . In this case, the contact surface between the first support pin and the rear surface of the spectacle lens may be inclined in any meridional direction (ie, 0 to 360 degrees) with respect to the mounting surface of the cup.

For example, in this embodiment, the first lens support means may have a first support pin that is rotatable with respect to the mounting surface of the cup. Since the first support pin is rotatable, it can be inclined in any meridional direction with respect to the mounting surface of the cup, and the height from the ground surface of the cup mounting device to each pin changes according to the inclination angle. .

For example, the first lens support means has such a rotatable first support pin, and by keeping the front surface of the spectacle lens placed on the first support pin parallel to the mounting surface of the cup, The front surface of the spectacle lens may be used as the reference plane. Since the first support pin is rotatable, it is possible to provide a reference plane on the front surface of the spectacle lens even for spectacle lenses having a large difference in curvature between the front surface and the rear surface of the spectacle lens (for example, high-curve lenses). become.

For example, the first lens supporting means may further have lens pressing means (for example, lens pressing mechanism 40). The lens pressing means presses the front surface of the spectacle lens. For example, in this embodiment, the front surface of the spectacle lens mounted on the first support pin is moved vertically to the first support pin provided in the first lens support means, thereby causing the lens presser to move the front surface of the eyeglass lens. A means presses from a vertical direction. That is, while the front surface of the spectacle lens is pressed using the lens pressing means, the rear surface of the spectacle lens is pressed using the first support pin. As a result, the contact surface between the front surface of the spectacle lens placed on the first support pin and pressed by the lens pressing means and the lens pressing means is kept parallel. For example, the first lens support means can keep the contact surface of the front surface of the spectacle lens placed on the first support pin and pressed by the lens pressing means parallel to the contact surface of the lens pressing means. Alternatively, the front surface of the spectacle lens may be kept parallel to the mounting surface of the cup, and the front surface of the spectacle lens may be used as the reference plane. By providing the lens pressing means to the first lens supporting means, spectacle lenses having a large difference in curvature between the front surface and the rear surface of the spectacle lens (for example, a high curve lens, etc.) can be clamped and supported more stably.

In addition, in this embodiment, the lens pressing means provided in the first lens supporting means may be detachable from the cup mounting device. In this case, the lens holding means may be configured to be detachable from the cup mounting device as a whole. In this case, the lens holding means may be partially detachable from the cup mounting device. As an example, only the arm of the lens holding means may be detachable from the cup mounting device.

Further, in this embodiment, the lens holding means provided in the first lens supporting means may be switchable between a use position holding the spectacle lens and a retracted position retracted from the use position. For example, in this embodiment, the use position of the lens pressing means may be a position where the lens pressing means is arranged on the first support pin. More specifically, for example, the horizontal position of the pressing pin (for example, the lens pressing pin 44) of the lens pressing means may coincide with the horizontal position of the first support pin. When using the first lens support means as the lens support means, the lens pressing means may be switched to the use position. When using the second lens support means as the lens support means, the lens pressing means may be switched to the retracted position. When changing to either the first lens support means or the second lens support means according to the type of the spectacle lens, the use and non-use of the lens pressing means can be easily switched to improve the operability. .

In addition, the first lens support means may have a configuration that allows the front surface of the spectacle lens to be used as a reference plane, and is not limited to a configuration having a first support pin that is rotatable with respect to the mounting surface of the cup. . For example, the front surface of the spectacle lens and the mounting surface of the cup may be kept parallel by having first support pins whose heights are adjustable. In this case, the first lens support means may further have lens pressing means, and the abutment surfaces of the spectacle lens mounted on the pin and the lens pressing means may be kept parallel. This also makes it possible to use the front surface of the spectacle lens as the reference plane. Of course, the front surface of the spectacle lens and the mounting surface of the cup may be kept parallel without using the first support pin. As an example, by having a cylindrical lens supporting portion and placing the front surface of the spectacle lens on the lens supporting portion, the front surface of the spectacle lens and the mounting surface of the cup are kept parallel, and the front surface of the spectacle lens is used as a reference. It can be a face. In this case, the first lens supporting means may have lens holding means for holding the rear surface of the spectacle lens, and may hold the spectacle lens therebetween.

<Second Lens Support Means>
The second lens support means may support the spectacle lens by keeping the rear surface (rear surface) of the spectacle lens and the mounting surface of the cup parallel to the reference surface for mounting the cup on the rear surface of the spectacle lens. For example, the second lens support means may comprise a second support pin (eg, support pin 26). The second support pin may consist of multiple pins (eg, three pins, etc.). The second support pin may be a fixedly arranged pin on which the spectacle lens is placed. For example, the second support pins in this embodiment may be pins fixedly arranged at the same height.

For example, the second lens support means has such a fixedly arranged second support pin, and the abutting surfaces of the second support pin and the rear surface of the spectacle lens placed on the second support pin are parallel. , the rear surface of the spectacle lens and the mounting surface of the cup can be kept parallel, and the rear surface of the spectacle lens can be used as a reference plane. Since the second support pin is fixedly arranged, the reference surface can be provided on the rear surface of the spectacle lens without using lens pressing means or the like, and the operation is easy.

In addition, in this embodiment, the second lens supporting means may further have a lens pressing means. In this case, the spectacle lens can be held between the second support pin and the lens pressing means, and the spectacle lens can be supported more stably.

In addition, the second lens support means is not limited to this embodiment as long as it has a configuration that allows the rear surface of the spectacle lens to be used as a reference surface. For example, movable pins having the same height that can adjust the distance or interval between pins may be provided so that the size of the area for supporting the spectacle lens can be changed. Further, for example, in addition to the second support pin, it may be configured to have a detachable pin. Even in these cases, the abutment surfaces between the pins and the rear surface of the spectacle lens should be kept parallel, the rear surface of the spectacle lens and the mounting surface of the cup should be kept parallel, and the rear surface of the spectacle lens should be used as a reference plane. can be done.

<Switching Means>
For example, the cup attachment device in this embodiment comprises switching means. The switching means switches between the first lens supporting means and the second lens supporting means in the cup mounting device. For example, the switching means arranges one of the first lens support means and the second lens support means at the use position for attaching the cup to the spectacle lens, and the other at the retracted position where the other is retracted from the use position. By doing so, the first lens support means and the second lens support means may be switched. By providing the switching means, the reference surface can be easily changed for each type of spectacle lens, and the cup can be attached appropriately.

In this embodiment, the switching means may have a first attaching/detaching means (for example, insertion pin 11). The first attaching/detaching means enables the first lens supporting means and the second lens supporting means to be attached to the cup attaching device. Note that the first attachment/detachment means is not limited to this embodiment as long as the first lens support means and the second lens support means can be attached to the cup attachment device. For example, the configuration may be such that the convex portion and the concave portion are fitted to each other. In this case, the cup mounting device is provided with fitting portions for fitting the first lens supporting means and the second lens supporting means, and the fitting portions are fitted to the first lens supporting means and the second lens supporting means. A recess may be provided for insertion. Further, for example, a configuration may be adopted in which the first lens supporting means and the second lens supporting means are attached using magnets or the like. In such a case, the switching means can switch between the first lens supporting means and the second lens supporting means by attaching either the first lens supporting means or the second lens supporting means using the first attaching/detaching means. You may make it switch. A suitable lens supporting means can be attached according to the type of spectacle lens, and the reference surface can be easily changed, so that the cup can be attached with high accuracy.

Also, in this embodiment, the switching means may have a second attaching/detaching means (for example, the recess 7). The second attaching/detaching means enables the lens holding means to be attached to the cup attaching device. In addition, the second attaching/detaching means is not limited to this embodiment as long as it has a structure capable of attaching the first lens supporting means and the second lens supporting means to the cup mounting device. For example, a configuration in which a convex portion and a concave portion are fitted to each other, a configuration in which a magnet or the like is used for attachment, or the like may be used. The switching means may switch between the first lens supporting means and the second lens supporting means by attaching the lens pressing means using the second attaching/detaching means. This makes it possible to attach and detach the lens holding means according to the type of the spectacle lens, clamp the spectacle lens as required, and stably support the spectacle lens.

In addition, in the present embodiment, the switching means may have a drive section. The drive section moves the first lens support means and the second lens support means. The switching means may switch between the first lens supporting means and the second lens supporting means by driving the drive section. In this case, the driving section may have a motor or the like, and may be configured to automatically switch between the first lens supporting means and the second lens supporting means. Further, in this case, the drive section may have a lever or the like to manually switch between the first lens support means and the second lens support means. With such a drive unit, one of the first lens support means and the second lens support means is placed at the use position for attaching the cup to the spectacle lens, and the other is placed at the retracted position where the cup is retracted from the use position. You may make it arrange|position. As an example, the drive unit includes a slide mechanism or the like for sliding the first lens support means and the second lens support means, and uses the slide mechanism to move the first lens support means and the second lens support means. By doing so, the use position and the retracted position may be switched. For example, with such a switching means, it is possible to switch to an appropriate lens supporting means according to the type of spectacle lens, easily change the reference plane, and mount the cup with high accuracy.

Also, in this embodiment, the switching means may have a lock mechanism. The lock mechanism suppresses rotation (inclination) of the cup with respect to the mounting surface. The switching means may switch between the first lens supporting means and the second lens supporting means by locking and releasing the lock mechanism. That is, the switching means may serve as both the first lens supporting means and the second lens supporting means. As an example, the rotation of the first lens supporting means may be suppressed by locking the first lens supporting means, and the first lens supporting means may be used as the second lens supporting means. For example, even with such a switching means, it is possible to switch to an appropriate lens supporting means according to the type of spectacle lens, easily change the reference surface, and attach the cup with high accuracy.

<Cup mounting device>
For example, the cup attachment device in this embodiment includes cup attachment means (eg, cup attachment mechanism 50). A cup attachment means attaches the cup to the lens. The cup attachment means may be configured to attach a cup to at least one of the front surface and the rear surface of the lens. For example, the cup attachment means attaches the cup to the spectacle lens supported by the first lens support means or to the spectacle lens supported by the second lens support means.

For example, when the first lens supporting means is used as the lens supporting means, the cup attaching means attaches the cup to the spectacle lens supported by the first lens supporting means. At this time, the cup attaching means may attach the cup to the lens that is supported by the first lens supporting means and held by the operator. Further, in this case, the cup attaching means may attach the cup to the spectacle lens which is supported by the first lens supporting means and further pressed by the lens pressing means.

For example, when the second lens supporting means is used as the lens supporting means, the cup attaching means attaches the cup to the lens supported by the second lens supporting means. In this case, the cup attachment means may attach the cup to the lens that is supported by the second lens support means and held by the operator. Further, in this case, the cup attaching means may attach the cup to the spectacle lens which is supported by the second lens supporting means and further pressed by the lens pressing means. For example, in the present embodiment, the reference plane of the spectacle lens is maintained parallel by the first lens supporting means or the second lens supporting means, so that the cup can be accurately attached by using such a cup attaching means. can be done.

In this embodiment, the cup attachment means may include transport means for transporting the spectacle lens (for example, a transport unit for adsorbing and transporting the spectacle lens, etc.). For example, in this case, the spectacle lens supported by the lens support means may be transported to the cup attachment means by the transport means, and the cup attachment means may attach the cup to the transported spectacle lens.

<Example>
An example according to the present embodiment will be described below with reference to the drawings. FIG. 1 is an external view of the cup mounting device 1. FIG. For example, the cup mounting device 1 includes a display 3, a storage section 4, a housing 5, a table 8, a lens support mechanism 10, a lens measurement mechanism 30, a lens holding mechanism 40, a cup mounting mechanism 50, and the like.

In this embodiment, the display 3 is provided with a touch panel function, and the display 3 functions as an operation unit (controller). Note that the display 3 and the operation unit may be provided separately, and in this case, at least one of a mouse, a joystick, a keyboard, a mobile terminal, and the like may be used as the operation unit. Also, in this embodiment, the display 3 is an LCD (Liquid Crystal Display). Of course, the configuration is not limited to LCD, and may be a configuration using an organic EL (Electro Luminescence) display, a plasma display, or the like.

The display 3 displays operation screens (processing condition input screen, layout data input screen, axis striking screen, etc.), a lens image of the spectacle lens (hereinafter referred to as lens) LE captured by the lens measurement mechanism 30, lens information, etc. is displayed. The lens information may be, for example, the outer shape of the lens LE, marking points, hidden marks, printed marks, and the like.

The storage portion 4 stores the table 8 and a lens support portion 15 which will be described later. The storage portion 4 has a width larger than the thickness of the table 8 and the thickness of the lens support portion 15 (the thickness of the plate 16 in this embodiment). By using the storage portion 4, the table 8 and the lens support portion 15 can be stored in an upright state. In this embodiment, the storage section 4 is provided on the side surface of the housing 5 . In this case, the storage unit 4 may be provided on the right side and the left side of the housing 5, or may be provided on either side. Of course, it may be provided not only on the side surface of the housing 5 but also on the top surface or the rear surface.

The housing 5 has a substantially U-shaped side surface. An insertion opening 9 (see FIG. 3) for inserting the table 8 is provided on the front surface of the housing 5 . Inside the housing 5, a lens measurement mechanism 30, which will be described later, is provided. The housing 5 has an overhanging portion 5a and a pedestal 5b that protrude forward. A cup attachment mechanism 50, which will be described later, is provided on the projecting portion 5a. A lens support mechanism 10 and a lens pressing mechanism 40, which will be described later, are provided on the pedestal 5b. The lens pressing mechanism 40 is fitted into the recess 7 provided in the base 5b.

Table 8 is used when imaging a demo lens or template. The table 8 is detachable from the cup mounting device 1 . By inserting the table 8 into the insertion opening 9, the operator can place the demo lens or the template on the table 8 and take an image of the outer shape of the demo lens or the template. Further, by removing the table 8 from the insertion port 9, the operator can use the lens support mechanism 10 to mount (axially strike) the cup Cu (see FIG. 5), which is a processing jig, to the lens LE. can.

<Lens support mechanism>
A lens support mechanism 10 supports the lens LE by placing the lens LE thereon. For example, the lens support mechanism 10 includes an insertion pin 11, a protective cover 12, a lens support portion 15, a lens pressing mechanism 40, and the like. The insertion pin 11 is fixed so as to protrude from the protective cover 12 . A lens support 15 is placed on the protective cover 12 .

<Lens support>
The lens support portion 15 includes a first lens support portion 15a having a front surface of the lens LE as a reference surface for mounting the cup Cu, and a second lens support portion 15b having a rear surface of the lens LE as a reference surface for mounting the cup Cu. Note that the reference plane will be described later.

FIG. 2 is a diagram showing the lens support portion 15. As shown in FIG. FIG. 2(a) shows the first lens supporting portion 15a, and FIG. 2(b) shows the second lens supporting portion 15b. Both the first lens support portion 15 a and the second lens support portion 15 b have a plate 16 . A hole 17 is provided in the plate 16 . The hole 17 is adapted to fit with the insertion pin 11 . By arranging the plate 16 so that the insertion pin 11 is inserted into the hole 17, the first lens support portion 15a or the second lens support portion 15b can be placed on the protective cover 12 in a fixed direction. As a result, in this embodiment, when the first lens support portion 15a is placed on the protective cover 12, the center point P1 of the support pin 21 (described later) of the first lens support portion 15a and the reference point for attaching the cup The optical axis L2 of the lens measuring mechanism 30, which serves as an axis, coincides. Further, in this embodiment, when the second lens support portion 15b is placed on the protective cover 12, the center point P2 of the support pin 26 (described later) of the second lens support portion 15b and the optical axis and L2 match. In addition, in the present embodiment, the center points of the support pins 21 and 26 (that is, the center points P1 and P2) may be provided at the center of the plate 16 . For example, the center point of support pin 21 and support pin 26 may be the circumcenter of a circumscribed circle passing through each support pin.

In addition to the plate 16, the first lens support portion 15a includes a support pin 21, a triangular plate 22, a cylindrical member 23, a fixing member 24, and the like. In this embodiment, three support pins 21 are provided. The support pins 21 are used when mounting a lens with a large change in the shape of the rear surface with respect to the shape of the front surface of the lens (for example, a high-curve lens with a large difference between the curvature of the front surface and the curvature of the rear surface of the lens). good too. The support pins 21 are fixedly arranged on the triangular plate 22 at the same distance and at the same angle (that is, 120 degrees) with respect to the optical axis L1. The support pin 21 supports the lens LE by coming into contact with the rear surface of the lens LE. Triangular plate 22 is attached to cylindrical member 23 via a rotatable ball 25 (see FIG. 4). A retroreflective member may be attached to the upper surface of the triangular plate 22 (that is, the surface to which the support pin 21 is fixed). Cylindrical member 23 is connected to fixed member 24 . A fixed member 24 is fixed to the plate 16 . As a result, the support pin 21 becomes rotatable.

The second lens support portion 15b includes support pins 26 and the like in addition to the plate 16. As shown in FIG. In this embodiment, three support pins 26 are provided. The support pins 21 may be used when mounting a lens with a small change in the shape of the rear surface relative to the shape of the front surface of the lens (for example, a lens with a small difference between the curvature of the front surface and the curvature of the rear surface of the lens). good. The support pins 26 are fixedly arranged on the plate 16 equidistantly and equiangularly (that is, 120 degrees) with respect to the optical axis L1. The support pin 26 supports the lens LE by coming into contact with the rear surface of the lens LE.

<Lens holding mechanism>
A lens pressing mechanism 40 presses the front surface of the lens LE. The lens pressing mechanism 40 is attached to the cup attachment device 1 by fitting a cylindrical member 46, which will be described later, into the recess 7 provided in the base 5b. In addition, in this embodiment, the lens holding mechanism 40 can be attached and detached from the cup attachment device 1 . Further, in this embodiment, the lens pressing mechanism 40 can be switched between a use position in which the lens pressing mechanism 40 can be used and a retracted position in which the lens pressing mechanism 40 is retracted from the use position. More specifically, for example, by horizontally rotating the arm 42, which will be described later, it is possible to switch between the use position and the retracted position.

FIG. 3 is a diagram showing the lens pressing mechanism 40. As shown in FIG. FIG. 3(a) shows a state where the lens pressing mechanism 40 is in a usable position. FIG. 3B shows a state in which the lens holding mechanism 40 has been moved from the use position to the retracted position. For example, the lens pressing mechanism 40 includes a shaft 41, an arm 42, a lens pressing pin 44, a lever 45, a cylindrical member 46, and the like.

The shaft 41 has its lower end fixed to the cylindrical member 46 and its upper end fitted into a groove (not shown) provided in the projecting portion 5a. An arm 42 is attached to the shaft 41 so as to be vertically movable. Arm 42 may be formed of a transparent member that transmits visible light. A space 43 is formed at the tip of the arm 42 for passing a cup Cu attached to a cup attachment portion 55, which will be described later. The arm 42 is biased downward by a spring (not shown), and is arranged so that the upper end of the support pin 21 in the first lens support portion 15a and the lower end of the lens pressing pin 44 are at the same (substantially the same) height. be done. A lens pressing pin 44 is provided to surround the space 43 and protrude downward. In this embodiment, the lens holding pins 44 are composed of three. A lever 45 is fixed to the arm 42 and used to move the arm 42 . In addition, in this embodiment, the arm 42 and the lever 45 may be formed integrally.

The operator can move the lever 45 upward to open the space between the support pin 21 and the lens pressing pin 44 , thereby inserting the lens LE between the support pin 21 and the lens pressing pin 44 . When the operator releases the lever 45, the arm 42 is moved downward by the urging force of a spring (not shown), and the lens LE is held between the support pin 21 and the lens pressing pin 44, thereby supporting the lens LE.

<Lens measurement mechanism>
FIG. 4 is a diagram showing the lens measuring mechanism 30. As shown in FIG. The lens measurement mechanism 30 includes an illumination optical system 310, an imaging optical system 320, and the like.

The illumination optical system 310 projects illumination light from the front side of the lens LE. The illumination optical system 310 includes a light source 311, a half mirror 312, a concave mirror 313, a retroreflective member 314, and the like. A light source 311 irradiates the lens LE with a measurement light flux. The light source 311 may be, for example, an LED (Light Emitting Diode). The measurement light flux emitted from the light source 311 is reflected by the half mirror 312 and coincides with the optical axis L1. The concave mirror 313 reflects the measurement light flux from the optical axis L1 toward the optical axis L2, and shapes the measurement light flux into a parallel light flux (substantially parallel light flux) having a larger diameter than the lens LE arranged on the optical axis L2. . The retroreflecting member 314 reflects the measurement light flux in substantially the same direction as the incident direction. The retroreflective member 314 may be rotated around the optical axis L2 at high speed by a motor (not shown) or the like in order to uniformize the reflection unevenness.

The retroreflective member 314 has fine glass globules and a reflective film arranged below the glass globules. The incident light flux incident on the retroreflective member 314 is refracted by the glass spheres, focused at one point near the spherical surface of the glass spheres, reflected by the reflective film, and becomes a reflected light flux. The reflected light beam is refracted again by the glass globule, becomes substantially parallel to the incident light beam, and is reflected in the original direction. As a result, the lens LE supported by the lens supporting portion 15 is illuminated from the rear side.

The imaging optical system 320 images the lens LE from the front side. The imaging optical system 320 includes a concave mirror 313, a diaphragm 321, an imaging lens 322, an imaging device 323, and the like. The concave mirror 313 of the imaging optical system 320 is shared with the concave mirror 313 of the illumination optical system 310 . Also, the imaging magnification of the imaging optical system 320 is a magnification at which the entire lens LE is imaged by the imaging device 323 . The diaphragm 321 is arranged at the focal position (substantially the focal position) of the concave mirror 313 . The diaphragm 321 has a conjugate (substantially conjugate) positional relationship with the light source 311 . The imaging element 323 captures an image of the reflected light flux emitted from the light source 311 and reflected by the retroreflective member 314 . The imaging device 323 may be, for example, a CCD (Charge Coupled Device), a CMOS (Complementary Metal Oxide Semiconductor), or the like. The focal position of the imaging device 323 is set near the surface of the lens LE. As a result, the marking points on the surface of the lens LE, the hidden marks formed on the lens, and the like can be imaged in a substantially focused state.

<Cup attachment mechanism>
FIG. 5 is a diagram showing the cup mounting mechanism 50. As shown in FIG. A cup attachment mechanism 50 attaches a cup to the lens LE. In this embodiment, a cup is attached to the front surface of the lens LE supported by the first lens supporting portion 15a or the second lens supporting portion 15b. The cup mounting mechanism 50 includes a moving support base 51, a support arm 52, a moving arm 53, a shaft 54, a cup mounting portion 55, and the like.

A support 56 is fixed to a block 57 provided inside the projecting portion 5a. The movable support base 51 is attached to the support 56 so as to be vertically movable. The movable support base 51 is provided with a spring (not shown) for always urging the movable support base 51 upward. The moving arm 53 is attached to the moving support base 51 . In addition, in this embodiment, the moving arm 53 and the moving support base 51 may be integrally formed. A shaft 54 is fixed to the moving arm 53 . The shaft 54 is provided with a coil spring (not shown) that applies an urging force so that the cup mounting portion 55 faces forward from below. The axis N1 of the shaft 54 extends in a direction perpendicular to the optical axis L1. The moving arm 53 is rotatable about the shaft 54 (that is, the axis N1) in a direction in which the cup mounting portion 55 faces the front side (operator side) and in a direction in which the cup mounting portion 55 faces downward. hold. A lever 58 for rotating the support arm 52 is fixed to the support arm 52 . A cup mounting portion 55 is provided on the support arm 52 . A cup Cu is attached to the cup attachment portion 55 .

<Lens reference surface>
Here, the reference plane of the lens LE will be described. The reference surface of the lens LE is a surface that serves as a reference when the cup Cu is attached to the lens LE. The reference surface of the lens LE may be provided on either the front surface or the rear surface, depending on the shape (eg, curve value) of the front and rear surfaces of the lens LE. For example, in this embodiment, by using the lens supporting portion 15a, the cup Cu can be attached using the front surface of the lens LE as a reference plane. Further, for example, in this embodiment, by using the lens supporting portion 15b, the cup Cu can be attached with the rear surface of the lens LE as a reference.

First, the case where the front surface of the lens LE is used as the reference plane will be described by taking as an example the attachment of the cup Cu to a lens having a large difference between the curvature of the front surface and the curvature of the rear surface of the lens (hereinafter referred to as a high-curve lens LEh). For example, a high curve lens LEh may be framed in a high curve frame (a frame with a large warp angle). Normally, for a lens with a small difference between the curvature of the front surface and the curvature of the back surface of the lens (hereinafter referred to as the lens LEl), the pupil position (eyepoint position) of the spectacle wearer and the center position of the lens LEl (for example, optical The position of the lens shape with respect to the lens LEl is set so that the center position OC) and the geometrical center of the lens shape are matched and the lens shape fits within the lens diameter of the lens LEl. At this time, the cup Cu is attached to the center position of the lens LEl. However, if the target lens shape conforms to the shape of the high-curve frame, the target lens shape may not fit within the lens diameter of the high-curve lens LEh when the position of the target lens shape is set as described above. In such a case, the center position of the high-curve lens LEh may be decentered in advance to set the position of the target lens shape and keep the target lens shape within the lens diameter. At this time, the cup Cu is attached to the eccentric position Q (see FIG. 6) obtained by decentering the center position of the high-curve lens LEh.

FIG. 6 is a diagram showing a state in which the high-curve lens LEh is placed on each lens supporting portion. 6(a) and 6(b) show a state in which the high-curve lens LEh is placed on the lens supporting portion 15a. 6(a) shows a case where the support pin 21 is not rotated with respect to the mounting surface AP of the cup Cu, and FIG. 6(b) shows a case where the support pin 21 is rotated with respect to the mounting surface AP of the cup Cu. is the case. FIG. 6(c) shows a state in which the high-curve lens LEh is mounted on the lens supporting portion 15b. When the central position of the high-curve lens LEh is decentered, the high-curve lens LEh is supported and the cup Cu is attached so that the optical axis L2, which is the reference axis for attaching the cup, coincides with the eccentric position Q. By supporting the high-curve lens LEh so that the front surface of the high-curve lens LEh and the mounting surface AP of the cup Cu are both parallel, the cup Cu can be accurately mounted.

For example, when the support pin 21 of the lens support portion 15a is not rotated (tilted) as shown in FIG. If they are parallel, the rear surface of the high-curve lens LEh and the support pin 21 may not come into contact with each other. In this state, the high curve lens LEh is not stably supported. When the rear surface of the high-curve lens LEh and the support pin 21 are brought into contact with each other, the front surface FP of the high-curve lens LEh does not become parallel to the mounting surface AP of the cup, even if the optical axis L2 and the eccentric position Q are aligned. cannot be installed correctly.

However, for example, when the support pin 21 of the lens support portion 15a is rotated (tilted) as shown in FIG. can be brought into contact with the rear surface of the support pin 21 . For example, in this embodiment, after the high-curve lens LEh is placed on the support pins 21, the triangular plate 22 is moved to tilt the high-curve lens LEh placed on the support pins 21 in an arbitrary direction, whereby the contact of the lens support portion 15a is achieved. By changing the height from the ground to each support pin 21, the rear surface of the high curve lens LEh and the support pin 21 can be brought into contact. As a result, the front surface FP of the high-curve lens LEh can be maintained parallel to the mounting surface AP of the cup, the eccentric position Q can be aligned with the optical axis L2, and the high-curve lens LEh can be stably supported. For example, in such a state, the front surface FP of the high-curve lens LEh is used as a reference plane for attaching the cup Cu.

In this embodiment, the lens holding mechanism 40 may be used to more stably support the high-curve lens LEh. Since the arm 42 in the lens pressing mechanism 40 is urged downward, the lens pressing pin 44 comes into contact with the front surface of the high-curve lens LEh. That is, the high-curve lens LEh is held between the support pin 21 and the lens pressing pin 44 . The front surface of the high-curve lens LEh placed on the support pin 21 and the contact surface of the lens pressing pin 44 are kept parallel, and the front surface of the high-curve lens LEh and the mounting surface AP of the cup Cu are kept parallel. The front surface FP of the lens LEh may be used as the reference plane.

For example, when the support pin 26 of the lens support portion 15b is used as shown in FIG. 6(c), it is similar to the case where the support pin 21 of the lens support portion 15a is not rotated (tilted) as shown in FIG. 6(a). become. Since the height of the support pin 26 is fixed, if the front surface FP of the high-curve lens LEh is made parallel to the mounting surface AP of the cup, the rear surface of the high-curve lens LEh and the support pin 26 may not contact each other. Also, if the rear surface of the high-curve lens LEh and the support pin 26 are brought into contact with each other, the front surface FP of the high-curve lens LEh will not be parallel to the mounting surface AP of the cup, and the cup Cu cannot be mounted accurately.

For example, when it is desired to attach the cup Cu to the high-curve lens LEh in this way, it is preferable to use the lens supporting portion 15a to provide a reference plane on the front surface FP of the high-curve lens LEh. Note that the same problem occurs not only in the high-curve lens LEh, but also when the center position of the lens is decentered. Therefore, it is preferable to use the lens supporting portion 15a to use the front surface of the lens as the reference plane.

Next, the case where the rear surface of the lens LE is used as the reference plane will be described, taking the attachment of the cup Cu to the lens LE1 as an example. FIG. 7 is a diagram showing a state in which the lens LEl is placed on each lens supporting portion. FIG. 7(a) shows a state in which the lens LEl is placed on the lens supporting portion 15a. FIG. 7B shows a state in which the lens LEl is placed on the lens supporting portion 15b. For example, with respect to the lens LEl, even if the center position of the lens LEl is not decentered, the lens shape often fits within the lens diameter. Therefore, the lens LEl may be supported and the cup Cu may be attached so that the optical axis L2, which is the reference axis for attaching the cup, and the center position (optical center position OC) of the lens LEl are aligned.

For example, when the lens LEl is placed on the lens support portion 15b as shown in FIG. , are aligned with each other, the optical axis L2 and the center position of the lens LEl can be aligned, and the lens LEl can be stably supported. At this time, the abutting surfaces of the support pins 26 and the rear surface of the lens LEl placed on the support pins 26 are kept parallel, and the mounting surface AP of the cup and the rear surface of the lens LEl (in other words, the rear surface of the lens LEl) are kept parallel. perpendicular to the posterior surface) BP and , become parallel. For example, in such a state, the rear surface BP of the lens LEl is used as a reference surface for attaching the cup Cu. Since the difference in curvature between the front surface and the rear surface of the lens LEl is small, the mounting surface AP of the cup and the rear surface BP of the lens LEl are parallel, and the mounting surface AP of the cup and the front surface FP of the lens LEl are also parallel. Therefore, the cup Cu can be accurately attached to the lens LEl. It suffices to place the lens LE1 on the support pin 26, and the operation is easy.

For example, when the lens LEl is placed on the lens support portion 15a as shown in FIG. 7A, the support pin 21 is not rotated (tilted), and the center point P1 of the support pin 21 and the center position of the lens LEl are aligned. , are aligned with each other, the optical axis L2 and the center position of the lens LEl can be aligned, and the lens LEl can be stably supported.

Since the support pin 21 is rotatable, the lens holding mechanism 40 may be used to more stably support the lens LEl. That is, the lens LEl may be sandwiched between the support pin 21 and the lens pressing pin 44 . This also allows the front surface FP and the rear surface BP of the lens LEl to be kept parallel to the mounting surface AP of the cup, so that the cup Cu can be accurately mounted to the lens LE.

For example, when it is desired to attach the cup Cu to the lens LEl, the reference plane may be provided on the rear surface BP of the lens LEl using the lens supporting portion 15b because the operation is easy. Even in the case of the high-curve lens LEh, if it can be stably supported by the support pins 26, the rear surface of the lens may be used as the reference surface using the lens support portion 15b.

<Control system>
FIG. 8 is a diagram showing a control system of the cup attaching device 1. As shown in FIG. For example, the control unit 60 is realized by a general CPU (processor), RAM, ROM, and the like. The CPU may control driving of each part in the cup attaching device 1 . The RAM may temporarily store various information. Various programs executed by the CPU may be stored in the ROM. For example, the control unit 60 is electrically connected to the display 3, the light source 311, the imaging element 323, the nonvolatile memory (hereinafter referred to as the memory 65), a motor (not shown) for rotating the retroreflective member 314, and the like. .

The memory 65 may be a non-transitory storage medium that can retain stored content even when power supply is interrupted. For example, the memory 65 can be a hard disk drive, flash ROM, USB memory, SD card, or the like. The memory 65 may store the outer shape of the lens measured by the lens measuring mechanism 30, and the like.

<Action>
The operation of the cup mounting device 1 having the configuration as described above will be described.

<Acquisition of lens shape>
First, the target lens shape of the lens LE is obtained. For example, in this embodiment, the lens measurement mechanism 30 and table 8 are used to obtain a target shape from a demo lens or template that has been framed in a frame. For example, in this embodiment, the table 8 may support the lens LE as the third lens support. The table 8 may be used with the first lens support portion 15a and the second lens support portion 15b removed. Accordingly, it is possible to image the lens LE supported by the table 8 without the image of the support pin 21 or the support pin 26 being reflected.

The operator inserts the table 8 into the insertion opening 9 and places the demo lens or template on the table 8 . Also, the operator operates a button (not shown) for starting acquisition of the target lens shape. The control unit 60 turns on the light source 311 to irradiate a light beam and rotates the retroreflecting member 314 according to the input operation signal. The light flux that is reflected by the retroreflective member 314 and illuminates the demo lens or template from the rear side is imaged by the imaging device 323 . As a result, a demo lens image of the entire demo lens or a template image of the entire template is acquired. The control unit 60 performs image processing (for example, edge detection) on the demo lens image or template image to detect the outer shape of the demo lens or template, and stores it in the memory 65 as a target lens shape. After obtaining the target lens shape, the operator removes the table 8 from the insertion opening 9 .

Note that the target lens shape of the lens LE may be obtained from the outer shape of a demo lens or template, the inner shape of the rim of the frame, or the like. In this embodiment, the target lens shape is acquired using the cup mounting device 1, but the target target shape may be acquired by causing the cup mounting device 1 to read the target target shape measured using another device.

<Processing conditions and layout settings>
Subsequently, processing conditions and layout of the lens LE are set. The processing conditions for the lens LE include the type of the lens LE (eg, single focus lens, bifocal lens, progressive lens, etc.), the material of the lens LE, the material of the frame, and the processing mode (eg, mirror surface processing, chamfering, groove processing, etc.). the presence or absence of engraving, etc.), the attachment position of the cup Cu to the lens LE (for example, the optical center position of the lens LE, the geometrical center position of the lens shape, etc.), and the like. The layout of the lenses LE may be the eyeglass wearer's interpupillary distance, frame center distance, and/or the like. The operator sets these conditions and layout by operating the setting screen displayed on the display 3 .

<Installation of the lens support>
Here, the operator places the lens support portion 15 of the lens support mechanism 10 on the pedestal 5b. In this embodiment, either the lens support portion 15a or the lens support portion 15b is arranged on the base 5b. Either the lens support portion 15a or the lens support portion 15b may be selected according to the shape of the front and rear surfaces of the lens LE.

For example, in this embodiment, when the lens supporting portion 15a is selected to attach the cup Cu to the high-curve lens LEh, when the lens supporting portion 15b is selected to attach the cup Cu to the lens LEl, will be explained in order.

<When installing the lens support portion 15a>
FIG. 10 is a diagram showing a state in which the lens holding mechanism 40 is removed from the cup mounting device 1. FIG. The operator places the lens support portion 15a of the lens support mechanism 10 on the pedestal 5b. In this embodiment, the lens support portion 15a is mounted on the base 5b so that the insertion pin 11 protruded and fixed from the protective cover 12 is inserted into the hole 17 provided in the lens support portion 15a. Also, the operator attaches the lens pressing mechanism 40 to the pedestal 5b (that is, changes from the state shown in FIG. 10 to the state shown in FIG. 3). In this embodiment, the lens pressing mechanism 40 is attached to the base 5b by fitting the cylindrical member 46 of the lens pressing mechanism 40 into the concave portion 7 of the base 5b. Also, the operator places the arm 42 of the lens pressing mechanism 40 at the use position (that is, from the state shown in FIG. 3A to the state shown in FIG. 3B). By arranging the arm 42 at the use position, the lens pressing pin 44 is arranged above the support pin 21 . The operator operates the lever 45 to clamp the high curve lens LEh between the support pin 21 and the lens pressing pin 44 . As a result, the front surface of the high-curve lens LEh placed on the support pin 21 and the contact surface of the lens pressing pin 44 are kept parallel, and the front surface of the high-curve lens LEh and the mounting surface AP of the cup Cu are aligned. They are kept parallel, and the front surface of the high-curve lens LEh is used as a reference plane for attaching the cup.

<When installing the lens support portion 15b>
The operator places the lens support portion 15b of the lens support mechanism 10 on the pedestal 5b. In this embodiment, the lens supporting portion 15b is mounted on the base 5b so that the insertion pin 11 fixed and projecting from the protective cover 12 is inserted into the hole 17 provided in the lens supporting portion 15b. Note that when using the lens supporting portion 15b, the lens pressing mechanism 40 does not necessarily have to be attached to the base 5b. Therefore, the lens pressing mechanism 40 may be removed from the recess 7 of the base 5b as shown in FIG. If the lens pressing mechanism 40 is attached in advance, the lens LEl may be placed on the support pin 26 with the arm 42 of the lens pressing mechanism 40 placed at the retracted position. As a result, the contact surfaces of the support pins 26 and the rear surface of the lens LEl placed on the support pins 26 are kept parallel, and the rear surface of the lens LEl and the mounting surface AP of the cup Cu are kept parallel. The rear surface of the lens LEl is used as a reference surface for attaching the cup.

<Lens Alignment>
When the operator places the lens LE on the support pin 21 or the support pin 26, the operator aligns the optical axis L2, which is the reference axis for attaching the cup, with the center position (or eccentric position Q) of the lens LE. Align.

For example, the operator operates a button (not shown) for alignment. The control unit 60 turns on the light source 311 to irradiate a light beam and rotates the retroreflecting member 314 according to the input operation signal. The light flux that is reflected by the retroreflective member 314 and illuminates the lens LE from the rear surface side is imaged by the imaging device 323 . As a result, a lens image of the entire lens LE is acquired. The display 3 displays an axis striking screen 70 for attaching the cup Cu to the lens LE.

FIG. 9 is an example of an axis striking screen 70. As shown in FIG. Here, an axial striking screen in a state in which the high-curve lens LEh is placed on the support pins 21 is taken as an example. An arm image 42s that is an image of the arm 42, a support pin image 21s that is an image of the support pin 21, a lens image LEhs of the high-curve lens LEh, a mark M representing the alignment target position, and the like are displayed on the shaft striking screen 70. be. In the lens image LEhs, a mark point image Rs, which is an image of a mark point pre-marked at the center position (or eccentric position), appears. The operator moves the high-curve lens LEh on the support pin 21 while confirming the axis striking screen 70 so that the mark image Rs and the mark M match. As a result, the optical axis L2, which is the reference axis for attaching the cup, and the central position (or eccentric position Q) of the high-curve lens LEh are aligned, and the alignment is completed.

It should be noted that the arm image 42s is not displayed on the axial striking screen when the lens LEl is placed on the support pin 26. FIG. As in the alignment of the high-curve lens LEh, the operator moves the lens LEl on the support pin 26 while confirming the axis striking screen 70 so that the mark image Rs and the mark M match, thereby completing the alignment. Let

<Installing the cup>
When the alignment is completed, the operator attaches the cup Cu to the lens LE. The operator mounts the cup Cu on the cup mounting portion 55 of the cup mounting mechanism 50 . Further, the operator operates the lever 58 to rotate the support arm 52 and move the support arm 52 downward. This attaches the cup Cu to the front surface of the lens LE.

As described above, for example, the cup mounting device of the present embodiment supports the spectacle lens by keeping the front surface of the spectacle lens and the mounting surface of the cup parallel, so that the reference surface for mounting the cup is the front surface of the spectacle lens. A second lens support means for supporting the spectacle lens, a second lens support means for supporting the spectacle lens, and a second lens support means for supporting the spectacle lens by keeping the rear surface of the spectacle lens and the mounting surface of the cup parallel to each other so that the reference surface for mounting the cup is the rear surface of the spectacle lens. The mounting device includes switching means for switching between the first lens supporting means and the second lens supporting means, and cup mounting means for mounting the cup on the spectacle lens. Conventionally, it was not possible to select whether to use the front surface of the spectacle lens as the reference surface or the rear surface of the spectacle lens as the reference surface. . However, by providing the cup mounting device with the configuration of this embodiment, the reference surface can be easily changed for each type of spectacle lens, and the cup can be mounted appropriately.

Further, for example, in the cup mounting device of the present embodiment, the switching means has a first attaching/detaching means that enables the first lens supporting means and the second lens supporting means to be attached to the cup attaching device. The first lens support means and the second lens support means are switched by attaching either one of the first lens support means and the second lens support means. As a result, it is possible to attach an appropriate lens supporting means according to the type of the spectacle lens and easily change the reference surface, so that the cup can be attached with high accuracy.

Further, for example, in the cup mounting device of the present embodiment, the first lens support means has a first support pin that is rotatable with respect to the mounting surface of the cup, and the spectacle lens mounted on the first support pin is mounted on the first support pin. By keeping the front surface parallel to the mounting surface of the cup, the front surface of the spectacle lens is used as a reference surface. Since the first support pin is rotatable, it is possible to provide a reference plane on the front surface of the spectacle lens even for spectacle lenses having a large difference in curvature between the front surface and the rear surface of the spectacle lens (for example, high-curve lenses). become.

Further, for example, in the cup mounting device of the present embodiment, the first lens supporting means further has lens pressing means for pressing the front surface of the spectacle lens, and is placed on the first supporting pins and pressed by the lens pressing means. By keeping the abutting surfaces of the front surface of the spectacle lens and the lens holding means parallel, the front surface of the spectacle lens and the mounting surface of the cup are kept parallel, and the front surface of the spectacle lens is used as a reference plane. By providing the lens holding means, spectacle lenses having a large difference in curvature between the front surface and the rear surface of the spectacle lens (for example, a high curve lens, etc.) can be clamped and supported more stably.

Further, for example, in the cup mounting device of the present embodiment, the lens pressing means provided in the first lens supporting means is detachable, and the switching means has a second attachment/detachment means for attaching and detaching the lens pressing means. The first lens supporting means and the second lens supporting means are switched by attaching the lens pressing means using the attaching/detaching means. This makes it possible to attach and detach the lens holding means according to the type of the spectacle lens, clamp the spectacle lens as required, and stably support the spectacle lens.

Further, for example, in the cup mounting device of the present embodiment, the lens holding means provided in the first lens supporting means can be switched between a use position for holding the spectacle lens and a retracted position for retracting from the use position, When using the first lens supporting means, the lens pressing means is switched to the use position, and when using the second lens supporting means, the lens pressing means is switched to the retracted position. For example, in this embodiment, when the front surface of the spectacle lens is used as the reference plane, the lens pressing means may be used, and when the rear surface of the spectacle lens is used as the reference plane, the lens pressing means may not be used. . When changing to either the first lens support means or the second lens support means according to the type of the spectacle lens, the use and non-use of the lens pressing means can be easily switched to improve the operability. .

Also, for example, the cup mounting device in this embodiment has a fixedly arranged second support pin on which the spectacle lens is placed, and the second support pin and the rear surface of the spectacle lens placed on the second support pin. By keeping the abutment surfaces of (1) and (2) parallel, the rear surface of the spectacle lens and the mounting surface of the cup are kept parallel, and the rear surface of the spectacle lens is used as a reference plane. Since the support pin is fixedly arranged, the reference surface can be provided on the rear surface of the spectacle lens without using lens pressing means or the like, and the operation is easy.

Further, for example, the cup mounting device in the present embodiment includes cup mounting means for mounting the cup on the spectacle lens, and the spectacle lens supported by the first lens supporting means or the spectacle lens supported by the second lens supporting means. Attach the cup to the spectacle lens in the state. In this embodiment, the reference planes of the spectacle lenses are kept parallel by the first lens support means or the second lens support means. Therefore, the cup can be accurately attached to the lens supported by the lens support means by using the cup attachment means.

<transformation example>
In this embodiment, the light source 311 illuminates the front surface of the lens LE by the lens measurement mechanism 30, and the light flux reflected by the retroreflecting member 314 is captured by the imaging element 323. is not limited to this. For example, the lens measurement mechanism 30 may be configured to illuminate the rear surface of the lens LE with a light source and project the light flux onto the screen. In this case, the display 3 is not necessarily required. For example, a mark M indicating the target position of alignment is previously marked on the screen, and alignment is performed so that the mark M on the screen is aligned with the mark M that appears in the lens image projected on the screen. good too. For example, even for a cup mounting device that does not have such a display 3, the first lens supporting means 15a and the second lens supporting means 15b may be switched for use.

In this embodiment, the plate 16 of the lens supporting portion 15 is provided with a hole 17, and the lens supporting portion 15 is arranged on the protective cover 12 so that the plate 16 is inserted into the insertion pin 11. has been described, but it is not limited to this. For example, in this embodiment, the plate 16 and the protective cover 12 are circular and designed so that the center point P1 of the support pin 21 or the center point P2 of the support pin 26 coincides with the center of the circular shape. Therefore, by placing the lens supporting portion 15 on the protective cover 12 without using the hole 17 or the insertion pin 11, the center point of each pin can be aligned with the optical axis L2. However, in this embodiment, the center point of each pin may be designed to be offset from the center of plate 16 . In this case, depending on the direction in which the lens support portion 15 is placed on the protective cover 12, the center point of each pin does not coincide with the optical axis L2. With such a configuration, the hole 17, the insertion pin 11, and the like can be used more effectively.

In this embodiment, the lens support mechanism 10 has the lens support portion 15a and the lens support portion 15b, and the reference plane of the lens LE is changed by replacing the lens support portions 15a and 15b. is not limited to For example, the lens support mechanism 10 may have a lens support portion 15a and a lens support portion 15b, and by moving these, the reference plane of the lens LE may be changed. In this case, a driving section for moving the lens supporting section 15a and the lens supporting section 15b may be provided. For example, the drive section may be a slide mechanism for slidingly moving the lens support section 15a and the lens support section 15b. The drive section may have a motor or the like, and may be configured to automatically switch between the lens support section 15a and the lens support section 15b. In this case, for example, the first lens supporting means and the second lens supporting means may be automatically switched by the control section 60 controlling the driving of the driving section. Further, the drive section may have a lever or the like to manually switch between the lens support section 15a and the lens support section 15b. In this case, for example, the operator may manually switch between the first lens support means and the second lens support means by operating a lever.

For example, in the cup mounting device of the present embodiment, the switching means has a driving section for moving the first lens supporting means and the second lens supporting means, and by driving the driving section, the second The first lens support means and the second lens support means may be switched. As a result, it is possible to switch to an appropriate lens supporting means according to the type of the spectacle lens, and to easily change the reference surface, so that the cup can be attached with high accuracy.

In the present embodiment, the lens support mechanism 10 has the lens support portion 15a and the lens support portion 15b, and the reference plane of the lens LE is changed by replacing the lens support portions 15a and 15b. is not limited to The lens support mechanism 10 may be configured so that the lens support portion 15a and the lens support portion 15b are also used. For example, in this case, the lens support mechanism 10 may be provided with a lock mechanism. The locking mechanism may suppress the rotation (inclination) of the lens supporting portion 15a (or the lens supporting portion 15b) with respect to the mounting surface of the cup Cu. As an example, the rear surface of the lens LE may be used as the reference plane by locking the rotation of the lens support portion 15a by a lock mechanism and fixing the support pin 21 so that the height thereof is uniform. Alternatively, the support pin 21 may be rotatable by releasing the lock mechanism, and the front surface of the lens LE may be used as the reference plane. For example, in this embodiment, the lens support mechanism 10 may be provided with a lock mechanism, and the reference plane of the lens LE can be switched by switching between use and non-use of the lock mechanism.

In this embodiment, the configuration in which the lens support portion 15a includes the rotatable support pin 21 has been described as an example, but the present invention is not limited to this. The lens supporting portion 15a may have a configuration for using the front surface of the lens LE as a reference plane. For example, the support pin 21 of the lens support portion 15a has a first support pin whose height can be adjusted, so that the front surface of the spectacle lens and the mounting surface of the cup are kept parallel, and the lens is The front surface of the LE may be used as the reference plane. Of course, the front surface of the spectacle lens and the mounting surface of the cup may be kept parallel without using the support pin 21 . As an example, by having a cylindrical lens supporting portion and placing the front surface of the spectacle lens on the lens supporting portion, the front surface of the spectacle lens and the mounting surface of the cup are kept parallel, and the front surface of the spectacle lens is used as a reference. It can be a face.

Further, in the present embodiment, the configuration in which the lens support portion 15b is provided with the support pin 26 fixedly arranged was described as an example, but the configuration is not limited to this. The lens supporting portion 15b may have a configuration for using the rear surface of the lens LE as a reference surface. For example, the support pins of the lens support portion 15b may be movable pins having the same height. You may have the structure which changes the magnitude|size of the area|region which supports.

In this embodiment, the lens measuring mechanism 30 has an optical system for obtaining lens information such as the outer shape of the lens LE, marking points, hidden marks, printed marks, and the like. is not limited to For example, the lens measurement mechanism 30 may include an optical system for acquiring optical characteristics of the lens LE (eg, spherical power, cylindrical power, cylinder axis angle, amount of prism, etc.) as lens information. As an example, such an optical system has an index plate on which a large number of openings (light passage openings) are formed in a predetermined pattern, etc. may be used to calculate the optical characteristics of the lens LE. For example, at least a part of the optical system for obtaining the outline of the lens LE, marking points, hidden marks, printed marks, etc. of the lens LE and the optical system for obtaining the optical characteristics of the lens LE are shared. It is good also as a structure provided separately.

1 cup attachment device 10 lens support mechanism 30 lens measurement mechanism 40 lens pressing mechanism 50 cup attachment mechanism 60 controller 65 memory

Claims (5)

In a cup attaching device for attaching a cup, which is a processing jig, to a spectacle lens,
a first lens support means for supporting the spectacle lens by keeping the front surface of the spectacle lens and the mounting surface of the cup parallel so that the reference surface for mounting the cup is the front surface of the spectacle lens;
a second lens support means for supporting the spectacle lens by keeping the rear surface of the spectacle lens and the mounting surface of the cup in parallel so that the reference surface for mounting the cup is the rear surface of the spectacle lens;
Switching means for switching between the first lens supporting means and the second lens supporting means in the cup mounting device;
cup attachment means for attaching the cup to the spectacle lens;
A cup attachment device comprising: The cup attachment device of claim 1, wherein
The switching means has a first attachment/detachment means for attaching the first lens support means and the second lens support means to the cup attaching device, and the first attachment/detachment means is used to attach the first lens support means or the second lens support means. A cup attaching device, wherein switching between the first lens supporting means and the second lens supporting means is performed by attaching either one of the second lens supporting means. 3. The cup attachment device of claim 1 or 2,
The first lens support means has a first support pin tiltable with respect to the mounting surface of the cup,
A cup mounting device, wherein the front surface of the spectacle lens placed on the first support pin and the mounting surface of the cup are kept parallel to each other so that the front surface of the spectacle lens is used as the reference plane. 4. The cup attachment device of claim 3, wherein
The first lens support means further includes lens pressing means for pressing the front surface of the spectacle lens,
By keeping the contact surfaces of the front surface of the spectacle lens placed on the first support pins and pressed by the lens pressing means and the lens pressing means parallel to each other, the front surface of the spectacle lens and the lens pressing means are kept parallel. A cup mounting device, wherein the mounting surface of the cup is kept parallel, and the front surface of the spectacle lens is used as the reference surface. In the cup mounting device according to any one of claims 1 to 4,
The second lens support means has a fixedly arranged second support pin for mounting the spectacle lens,
By keeping the abutment surfaces of the second support pin and the rear surface of the spectacle lens placed on the second support pin parallel, the rear surface of the spectacle lens and the mounting surface of the cup are kept parallel. 2. A cup mounting device, wherein the rear surface of said spectacle lens is used as said reference surface.

Images