Layout setting device, and layout setting program

Abstract

To provide a layout setting device and layout setting program that can set layout data on an eyeglass lens properly.SOLUTION: A layout setting device, which sets a layout for subjecting an eyeglass lens to circumference processing, comprises: lens shape acquisition means that acquires right and left lens shapes of the eyeglass lens; hole position acquisition means that acquires right and left hole positions of relative to the right and left lens shapes of the eyeglass lens, and for assembling a bridge of an eyeglass frame; pupil position acquisition means that acquires right and left pupil positions relative to the right and left lens shapes on the basis of a pupillary distance of an eyeglass wearer; layout setting means that sets a layout having the right and left pupil positions and the right and left hole positions arranged relative to the right and left lens shapes. When deforming at least one of the right and left lens shapes, the layout setting means is configured to reset the layout in a state of maintaining a relative position between the right and left hole positions and the right and left pupil positions.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a layout setting device and a layout setting program for setting a layout for processing the periphery of a spectacle lens. [Background technology]

[0002] When processing the periphery of a spectacle lens, it is necessary to lay out the optical center of the spectacle lens relative to the lens shape. For example, layout data showing the relationship between the optical center of the spectacle lens and the lens shape is created by inputting at least one of the following data: lens shape data, distance between the geometric centers of the lens shapes, distance between the nose ends of the left and right lens shapes, interpupillary distance of the wearer, height of the optical center relative to the lens shape, etc. (For example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-277903 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, when assembling a spectacle lens to a two-point frame, the lens shape may be deformed. For example, when assembling a progressive lens, the lens shape may be deformed so that the distance portion and the near portion fit appropriately into the lens shape. As an example, the vertical width or the horizontal width of the lens shape may be deformed. However, when the lens shape of the spectacle lens is deformed and processed, and then assembled into a two-point frame, the finished product may not be satisfactory.

[0005] In view of the above problems, the present disclosure has as its technical object to provide a layout setting device and a layout setting program capable of appropriately setting layout data for eyeglass lenses. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention is characterized by having the following configuration. (1) A layout setting device according to a first aspect of the present disclosure is a layout setting device that sets a layout for processing the edges of a spectacle lens, and includes: a lens shape acquisition means for acquiring left and right lens shapes of the spectacle lens; a hole position acquisition means for acquiring left and right hole positions relative to the left and right lens shapes of the spectacle lens, the hole positions being for assembling a bridge of a spectacle frame; a pupil position acquisition means for acquiring left and right pupil positions relative to the left and right lens shapes based on the interpupillary distance of a spectacle wearer; and a layout setting means for setting a layout in which the left and right pupil positions and the left and right hole positions are arranged relative to the left and right lens shapes, wherein when at least one of the left and right lens shapes is deformed, the layout setting means re-sets the layout while maintaining the relative positions of the left and right hole positions and the left and right pupil positions. (2) A layout setting program according to a second aspect of the present disclosure is a layout setting program used in a layout setting device that sets a layout for processing a periphery of a spectacle lens, and when executed by a processor of the layout setting device, causes the layout setting device to execute an aperture shape acquisition step of acquiring left and right aperture shapes of the spectacle lens, a hole position acquisition step of acquiring left and right hole positions for the left and right aperture shapes of the spectacle lens, which are hole positions for assembling a bridge of a spectacle frame, a pupil position acquisition step of acquiring left and right pupil positions for the left and right aperture shapes based on the interpupillary distance of a spectacle wearer, and a layout setting step of setting a layout in which the left and right pupil positions and the left and right hole positions are arranged for the left and right lens shapes, and the layout setting step is characterized in that when at least one of the left and right lens shapes is deformed, the layout is re-set while maintaining the relative positions of the left and right hole positions and the left and right pupil positions. [Brief description of the drawings]

[0007] [Figure 1] 1 is a schematic diagram illustrating an external appearance of a layout setting device. [Diagram 2] FIG. 1 is a schematic diagram of a lens support mechanism; [Diagram 3] FIG. 4 is a schematic diagram of a cup attachment mechanism. [Figure 4] FIG. 2 is a schematic diagram of a spectacle lens measuring mechanism. [Diagram 5] FIG. [Figure 6] 1 is an example of lens layout data. [Figure 7] 1 is an example of lens layout data. [Figure 8] 13 is an example of a layout setting screen having an input section for a bridge width. [Figure 9] 13 is an example of a target lens shape transformation screen having an input section for inputting a bridge width. [Figure 10] 13 is an example of an outline transformation screen. [Figure 11] 13 is an example of a layout setting screen after deformation of a target lens shape. [Figure 12] 13 is an example of a layout setting screen after deformation of a target lens shape. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] <Summary> An overview of a layout setting device according to an embodiment of the present disclosure will be described. Note that the items classified in <> below can be used independently or in association with each other.

[0009] The layout setting device in this embodiment may be any device capable of setting a layout for processing the periphery of a spectacle lens. For example, the layout setting device may be a cup attachment device for attaching a processing tool (cup) to a spectacle lens. Also, for example, the layout setting device may be a spectacle frame shape measuring device for measuring the lens shape (e.g., the inner shape of the rim) of a spectacle frame. Also, for example, the layout setting device may be a spectacle lens periphery processing device equipped with a processing tool for processing the periphery of a spectacle lens. In other words, for example, the layout setting device may be various devices equipped with the function of a layout setting device.

[0010] <Method for acquiring lens shape> The layout setting device in this embodiment may include a lens shape acquisition means (e.g., the control unit 60). For example, the lens shape acquisition means acquires the left and right lens shapes of the eyeglass lens. For example, the lens shape of the eyeglass lens may be at least one of the inner shape of the rim of the eyeglass frame, the outer shape of the demo lens, the outer shape of the template, and the like.

[0011] For example, the lens shape acquisition means may acquire the lens shape by using an existing database for at least one of the eyeglass frame, the demo lens, and the template, and calling up the corresponding data. Also, for example, the lens shape acquisition means may acquire the lens shape by bringing a measuring element into contact with at least one of the eyeglass frame, the demo lens, and the template, and mechanically measuring the lens shape. Also, for example, the lens shape acquisition means may acquire the lens shape by irradiating a light beam onto at least one of the eyeglass frame, the demo lens, and the template, and optically measuring the lens shape. For example, in this case, as an example, the lens shape acquisition means may acquire the lens shape by irradiating a measurement light beam onto a groove on the rim of the eyeglass frame, receiving a reflected light beam from the groove on the rim of the eyeglass frame, and determining the cross-sectional shape. Also, for example, in this case, the lens shape acquisition means may acquire the lens shape by imaging at least one of the demo lens and the template, and processing the image. As one example, the lens shape may be obtained by irradiating an illumination light beam onto at least one of the demo lens and the template and using an imaging means (e.g., the eyeglass lens measuring mechanism 40) that captures an image of the reflected light beam of the illumination light beam.

[0012] <Hole position acquisition means> The layout setting device in this embodiment may include a hole position acquisition means (for example, the control unit 60). For example, the hole position acquisition means acquires the left and right hole positions for the left and right lens shapes of the eyeglass lens, and the hole positions for assembling the bridge of the eyeglass frame. For example, the hole position acquisition means may acquire the hole positions by using an existing database for at least one of the demo lens and the template, and calling up the corresponding data. Also, for example, the hole position acquisition means may acquire the hole positions by imaging at least one of the demo lens and the template and performing image processing on the captured image. As an example, the lens shape may be acquired using the above-mentioned imaging means. In this case, the lens shape acquisition means and the hole position acquisition means may be used together.

[0013] <Pupillary position acquisition means> The layout setting device in this embodiment may include a pupil position acquisition means (e.g., the control unit 60). For example, the pupil position acquisition means acquires left and right pupil positions relative to left and right lens shapes based on the interpupillary distance of the eyeglass wearer. For example, the left and right interpupillary distance may be the distance between the centers of the left and right pupils, and the left and right pupil center positions may be acquired as the left and right pupil positions.

[0014] For example, the pupil position acquisition means may acquire the left and right pupil positions based on the interpupillary distance input by the operator operating the operation means (e.g., the monitor 2). In this case, for example, the interpupillary distance measured by a device (e.g., an objective eye examination device) different from the layout setting device may be input to the layout setting device. Also, for example, the pupil position acquisition means may acquire the left and right pupil positions based on the interpupillary distance received from a device different from the layout setting device.

[0015] <Method of acquiring bridge width> The layout setting device in this embodiment may include a bridge width acquisition means (e.g., the control unit 60). For example, the bridge width acquisition means acquires the width of the bridge of the eyeglass frame. For example, the bridge width of the eyeglass frame may be the width of a fastener for assembling the left and right lenses to the bridge of the eyeglass frame. Also, for example, the bridge width of the eyeglass frame may be the width of a hole position formed in the eyeglass lens for assembling the bridge of the eyeglass frame. As an example, it may be the width between the centers of the hole positions in the left and right lenses. As another example, it may be the width between the nose-side end points of the hole positions in the left and right lenses. As another example, it may be the width between the ear-side end points of the hole positions in the left and right lenses.

[0016] For example, the bridge width acquisition means may acquire the bridge width input by an operator operating the operation means. In this case, for example, a bridge width based on at least one of design data of the eyeglass frame, a measurement result using a ruler, etc. may be input to the layout setting device. Also, for example, the bridge width acquisition means may acquire the bridge width by using a database or the like in which design data of the eyeglass frame is accumulated and retrieving the relevant data.

[0017] <Nose end distance acquisition means> The layout setting device in this embodiment may include a nose side end distance acquisition means (for example, the control unit 60). For example, the nose side end distance acquisition means acquires the distance between the nose side ends of the left and right lens shapes. For example, the distance between the nose side ends of the left and right lens shapes may be the distance between the nose side end of the frame surrounding the lens shape for the left eye (i.e., the boxing frame for the left eye) and the nose side end of the frame surrounding the lens shape for the right eye (i.e., the boxing frame for the right eye). Note that, for example, such a nose side end may be a substantial end, and may be the end on the nose side or the periphery of the end on the nose side. Also, for example, the distance between the nose side ends of the left and right lens shapes may be different distances before and after lens shape deformation.

[0018] For example, the nose side end distance acquiring means may acquire the distance of the nose side end input by an operator operating the operating means. In this case, for example, the distance of the nose side end based on the design data of the eyeglass frame may be input to the layout setting device. Also, for example, the nose side end distance acquiring means may acquire the distance of the nose side end by using a database or the like in which the design data of the eyeglass frame is accumulated and retrieving the corresponding data.

[0019] For example, the nose side end distance acquisition means may acquire the distance of the nose side end based on the change of the left and right hole positions before and after the left and right lens shape is transformed. For example, the nose side end distance acquisition means may acquire the distance of the nose side end after lens shape transformation based on the change of the left and right hole positions before and after the left and right lens shape is transformed. For example, if the distance of the nose side end of the spectacle lens before lens shape transformation and the distance of the nose side end of the spectacle lens after lens shape transformation are set to the same distance, the spectacle lens may separate when the spectacle lens is assembled to the spectacle frame, and a deviation may occur between the pupil position on the layout data and the actual pupil position. However, for example, the occurrence of such a deviation can be easily suppressed by recalculating the distance of the nose side end after lens shape transformation based on the change of the hole position before and after lens shape transformation and appropriately setting the hole position.

[0020] For example, the nose end distance acquisition means may acquire the distance to the nose end based on the difference between a first distance from the hole position to the nose end before the left and right lens shapes are deformed and a second distance from the hole position to the nose end after the left and right lens shapes are deformed. For example, in more detail, the distance to the nose end after the left and right lens shapes are deformed may be acquired by subtracting the difference between the first distance and the second distance from the distance to the nose end before the left and right lens shapes are deformed.

[0021] <Hole position correction means> The layout setting device in this embodiment may include a hole position correction means (for example, the control unit 60). For example, the hole position correction means corrects the left and right hole positions for the left and right lens shapes. For example, the hole position correction means may correct the hole position after the lens shape deformation so as to maintain a predetermined positional relationship between the reference position for the lens shape and the hole position before and after the left and right lens shapes are deformed. For example, the reference position for the lens shape may be at least one of the pupil position, the optical center position, the boxing center position, the nose end position, and the like.

[0022] For example, the hole position correction means may correct the hole position based on the position of the nose end due to the deformation of the left and right lens shapes. For example, the hole position correction means may correct the hole position by resetting the hole position based on the movement amount of the nose end position moved by the deformation of the left and right lens shapes. For example, in this case, the movement amount of the hole position may be set so as to maintain a predetermined relationship with the movement amount of the nose end position. As one example, the hole position may be reset so that the movement amount of the nose end position and the movement amount of the hole position are the same (approximately the same). Also, as another example, the hole position may be reset so that the movement amount of the nose end position and the movement amount of the hole position maintain a constant ratio.

[0023] <Layout setting method> The layout setting device in this embodiment may include a layout setting means (for example, the control unit 60). For example, the layout setting means sets a layout in which left and right pupil positions and left and right hole positions are arranged for the left and right lens shapes. Also, for example, when at least one of the left and right lens shapes is deformed, the layout setting means resets the layout while maintaining the relative positions of the left and right hole positions and the left and right pupil positions. For example, the layout setting means may set (reset) the layout so that the optical centers are arranged at the left and right pupil positions both before and after the left and right lens shapes are deformed.

[0024] For example, the layout setting means may maintain the relative positions of the left and right pupil positions and the left and right hole positions before and after the rim deformation by changing at least one of the left and right lens shapes, the left and right hole positions relative to the left and right lens shapes, the left and right pupil positions relative to the left and right lens shapes, etc. Of course, for example, the layout setting means may maintain the relative positions of the left and right pupil positions and the left and right hole positions before and after the rim deformation by a combination of these. This makes it possible to set appropriate layout data after the rim deformation of the eyeglass lens.

[0025] For example, the layout setting means may reset the layout by integrally moving the left and right lens shapes and the left and right hole positions so as to maintain the relative positions between the left and right hole positions and the left and right pupil positions based on the bridge width acquired by the bridge width acquisition means. For example, the relative positions between the left and right pupil positions and the left and right hole positions can be easily maintained by moving the lens shape and the hole positions in consideration of the bridge width of the eyeglass frame before and after the lens shape deformation of the eyeglass lens. Therefore, it is possible to easily suppress the deviation between the pupil position on the layout data and the actual pupil position that may occur when the eyeglass lens is assembled to the eyeglass frame.

[0026] For example, the layout setting means may reset the layout by integrally moving the left and right lens shapes and the left and right hole positions so that the hole distance, which is the distance between the left and right hole positions for the left and right lens shapes, matches the bridge width. For example, if the distance between the left and right hole positions for assembling the bridge on the layout data is different from the bridge width before and after the lens shape deformation of the eyeglass lens, the eyeglass lens may be moved together when the eyeglass lens is assembled to the eyeglass frame, and a deviation may occur between the pupil position on the layout data and the actual pupil position. However, for example, by appropriately setting the hole positions so that the distance between the left and right hole positions matches the bridge width, the occurrence of such a deviation can be easily suppressed.

[0027] For example, the layout setting means may reset the layout by moving the left and right lens shapes so as to maintain a constant relative relationship between the left and right pupil positions and the left and right hole positions based on the distance of the nose side end acquired by the nose side end distance acquisition means. For example, the difference between the first distance and the second distance acquired by the nose side end distance acquisition means corresponds to the change in bridge width before and after lens deformation. For example, if the bridge width according to the eyeglass frame is a fixed width and the bridge width varies before and after lens deformation, a deviation may occur between the wearer's actual pupil position and the pupil position on the layout data when the eyeglass lens is assembled to the eyeglass frame. For this reason, for example, the hole position after lens deformation can be appropriately set by recalculating the distance of the nose side end after lens deformation so that the bridge width is constant before and after lens deformation, taking into account the difference between the first distance and the second distance. Also, for example, the lens shape and the hole position can be moved taking into account the distance of the nose side end before and after lens deformation of the eyeglass lens, so that the relative positions between the left and right pupil positions and the left and right hole positions can be easily maintained. Therefore, it is possible to easily suppress the deviation between the pupil position on the layout data and the actual pupil position, which may occur when the eyeglass lens is attached to the eyeglass frame.

[0028] <Display means> The layout setting device in this embodiment may include a display means (e.g., a monitor 2). For example, the display means displays a layout screen for setting the layout of the eyeglass lenses. For example, the layout screen may be a screen that displays layout data indicating the relationship between the optical center and the lens shape of the eyeglass lenses.

[0029] For example, the layout data of the eyeglass lens may include at least the left and right lens shape data. Also, for example, the layout data of the eyeglass lens may include at least any of the parameters such as the pupil position of the eyeglass wearer, the interpupillary distance of the eyeglass wearer, the bridge width of the eyeglass frame, the geometric center of the left and right lens shape, the distance between the geometric centers of the left and right lens shape, the distance between the nose side ends of the left and right lens shape, the distance between the hole positions of the left and right lens shape, and the height of the optical center relative to the geometric center of the left and right lens shape. Of course, for example, the layout data of the eyeglass lens may include parameters other than these.

[0030] <Display control means> The layout setting device in this embodiment may include a display control means (e.g., the control unit 60). For example, the display control means causes at least the bridge width to be displayed on the layout screen. Of course, for example, the display control means may cause a parameter other than the bridge width to be displayed on the layout screen.

[0031] For example, the layout setting device acquires the distance between the left and right lens shapes and the nose end of the eyeglass lens, and when at least one of the left and right lens shapes is transformed, sets the distance between the nose end after the lens shape transformation so as to maintain the distance between the nose end before the lens shape transformation. That is, for example, the layout setting device includes a lens shape acquisition means for acquiring the left and right lens shapes of the eyeglass lens, a nose end distance acquisition means for acquiring the distance between the nose end of the left and right lens shapes of the eyeglass lens, and a layout setting means for setting the distance between the nose end after the lens shape transformation so as to maintain the distance between the nose end before the lens shape transformation when at least one of the left and right lens shapes of the eyeglass lens is transformed. For example, in this case, the distance between the geometric centers on the layout screen is changed because the distance between the geometric centers is recalculated based on the position of the geometric center moved due to the change in the boxing frame accompanying the transformation of the lens shape and the distance between the nose end before the lens shape transformation. In this case, for example, the left and right hole positions are corrected due to the deformation of the lens shape, and the left and right hole positions move independently of the subject's pupil position (pupillary distance), and the hole distance (in other words, the bridge width) on the layout screen fluctuates. For example, this causes a deviation between the pupil position on the layout data and the actual pupil position when the eyeglass lens is assembled into the eyeglass frame.

[0032] However, for example, the layout setting device of this embodiment acquires the bridge width of the eyeglass frame as described above, and moves the left and right lens shape and the left and right hole positions together so that the bridge width matches the hole distance. Alternatively, the left and right lens shape and the left and right hole positions are moved together by subtracting the difference between the distance from the hole position to the nose end before and after lens shape deformation (the difference between the first distance and the second distance) from the distance to the nose end before lens shape deformation. In these cases, the distance to the nose end is recalculated with the deformation of the lens shape, and the distance to the nose end on the layout screen changes.

[0033] For example, for an inexperienced operator, since parameters such as the distance between the geometric centers and the distance at the nose end are expressed as different values ​​before and after the lens shape transformation, the operator may feel uneasy because he or she cannot judge whether the fluctuation of these values ​​is problematic. On the other hand, for example, the bridge width of the eyeglass frame is a fixed width specific to the eyeglass frame, and by performing at least one of matching the distance between the holes to the bridge width or subtracting the difference between the first distance and the second distance from the distance at the nose end before the lens shape transformation, the numerical value on the layout screen can be displayed as a fixed value even if the lens shape of the eyeglass lens is transformed. Therefore, as in the present embodiment, if the layout screen is configured to display the bridge width whose numerical value does not change before and after the lens shape transformation, even an inexperienced operator can easily perform the lens shape transformation. In addition, even if the left and right hole positions move independently of the subject's pupil position (interpupillary distance), and the numerical value of the bridge width of the eyeglass frame can change, the original bridge width of the eyeglass frame can be taken into consideration to suppress the occurrence of a shift in the pupil position when the eyeglass lens is assembled.

[0034] The present disclosure is not limited to the device described in the present embodiment. For example, the terminal control software (program) performing the functions of the above embodiment can be supplied to a device or a system via a network or various storage media, and a control device (e.g., a CPU) of the device or the system can read and execute the program.

[0035] <Example> An embodiment of the present invention will be described below with reference to the drawings.

[0036] 1 is an external view of a layout setting device 1. For example, the layout setting device 1 includes a monitor 2, an eyeglass lens supporting mechanism 10, a cup attachment mechanism 30, an eyeglass lens measuring mechanism 40 (see FIG. 4), and the like.

[0037] In this embodiment, a touch panel function is added to the monitor 2, and the monitor 2 functions as an operation unit (controller). The monitor 2 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, etc. may be used as the operation unit. In this embodiment, an LCD (Liquid Crystal Display) is used for the monitor 2. Of course, an organic EL (Electro Luminescence) display, a plasma display, etc. may also be used for the monitor 2.

[0038] For example, the monitor 2 displays various information including at least one of cup information to be attached to the eyeglass lens, optical property information of the eyeglass lens (first information), and information different from the optical property information of the eyeglass lens (second information). As an example, the cup information to be attached to the eyeglass lens may be the outer shape of the cup. As another example, the first information of the eyeglass lens may be at least one of spherical power, cylindrical power, astigmatism axis angle, prism amount, and the like. As another example, the second information of the eyeglass lens may be at least one of the outer shape, small lens shape, print mark, hidden mark, mark, hole shape, hole position, and the like of the eyeglass lens.

[0039] In addition, for example, the monitor 2 displays various operation screens including at least one of an axis setting screen for attaching a cup to the eyeglass lens, a layout screen for inputting the processing layout of the eyeglass lens, a processing condition setting screen for inputting the processing conditions of the eyeglass lens, etc.

[0040] <Eyeglass lens support mechanism> 2 is a schematic diagram of the eyeglass lens support mechanism 10. The eyeglass lens support mechanism 10 supports the eyeglass lens LE. For example, the eyeglass lens support mechanism 10 includes a cylindrical base 11, a ring member 12, a protective cover 13, a support pin 14, and the like.

[0041] For example, an index plate 44 and a retroreflective member 45, which will be described later, are stored inside the cylindrical base 11. For example, a ring member 12 is fixed to the upper part of the cylindrical base 11. For example, a protective cover 13 is fixed to the upper part of the ring member 12. For example, a support pin 14 is fixed to the upper part of the protective cover 13. For example, three support pins 14 are included, and each support pin 14 is disposed at an equal distance and at an equal angle with respect to the optical axis L1 of the measurement optical system 40 (see FIG. 4).

[0042] <Cup attachment mechanism> 3 is a schematic diagram of the cup attachment mechanism 30. The cup attachment mechanism 50 attaches a cup to a spectacle lens. For example, the cup attachment mechanism 30 includes a mounting unit 31, an arm 32, an arm holding base 33, a motor 34, an X-direction movement mechanism 35, a Y-direction movement mechanism 36, a Z-direction movement mechanism 37, and the like.

[0043] For example, a cup Cu is attached to the attachment part 31. For example, the attachment part 31 has an uneven part 31a that fits into an uneven part Cua formed on the cup Cu. For example, the attachment part 31 is fixed to an arm 32. For example, the arm 32 includes a rotation transmission mechanism (not shown) for variably holding the horizontal rotation angle of the attachment part 31. For example, the arm 32 is fixed to an arm holding base 33. For example, the arm holding base 33 includes a motor 34. For example, the rotation of the motor 34 is transmitted to the attachment part 31 via the rotation transmission mechanism (not shown) of the arm 32. This causes, for example, the attachment part 31 to rotate around the attachment center axis S1 of the cup Cu.

[0044] For example, the X-direction movement mechanism 35, the Y-direction movement mechanism 36, and the Z-direction movement mechanism 37 each include a motor (not shown) or the like. For example, the X-direction movement mechanism 35 moves in the left-right direction (X direction) of the layout setting device 1. For example, the Y-direction movement mechanism 36 is installed above the X-direction movement mechanism 35. For example, the Y-direction movement mechanism 36 moves in the up-down direction (Y direction) of the layout setting device 1. For example, the Z-direction movement mechanism 37 is installed above the Y-direction movement mechanism 36. For example, the Z-direction movement mechanism 37 moves in the front-rear direction (Z direction) of the layout setting device 1. For example, the Z-direction movement mechanism 37 holds the arm 32, the arm holding base 33, and the motor 34 included in the arm holding base 33.

[0045] For example, in this embodiment, by moving the X-direction moving mechanism 35, the Y-direction moving mechanism 36, the Z-direction moving mechanism 37, the arm 32, etc. move in the left-right direction relative to the layout setting device 1. Also, for example, in this embodiment, by moving the Z-direction moving mechanism 37, the arm 32, etc. move in the front-rear direction relative to the layout setting device 1. As a result, for example, the mounting part 31 moves to the upper part of the lens support mechanism 10.

[0046] Furthermore, for example, in this embodiment, by moving the Y-direction moving mechanism 36, the Z-direction moving mechanism 37, the arm 32, etc. move in the vertical direction relative to the layout setting device 1. As a result, for example, the cup Cu attached to the attachment portion 31 is centered on the eyeglass lens.

[0047] <Eyeglass lens measuring mechanism> 4 is a schematic diagram of the eyeglass lens measuring mechanism 40. The eyeglass lens measuring mechanism 40 measures optical characteristic information (first information) of the eyeglass lens. In addition, the eyeglass lens measuring mechanism 40 detects second information different from the optical characteristic information of the eyeglass lens. For example, the eyeglass lens measuring mechanism 40 includes an illumination optical system 410, an imaging optical system 420, and the like.

[0048] The illumination optical system 410 projects an illumination light beam from the front side of the eyeglass lens LE. For example, the illumination optical system 410 includes a light source 411, a half mirror 412, a concave mirror 413, an index plate 414, a retroreflection member 415, and the like. For example, the light source 411 irradiates a light beam onto the eyeglass lens LE. For example, the concave mirror 413 reflects the light beam from the light source and shapes the light beam from the light source into a parallel light beam (approximately parallel light beam) having a diameter larger than the eyeglass lens LE. For example, the index plate 414 has a predetermined pattern formed of a large number of openings (light beam passage openings). For example, the retroreflection member 415 reflects the light beam from the light source in the same (approximately the same) direction as the incident direction. For example, the retroreflection member 415 may be rotated at high speed around the optical axis L1 by a motor (not shown) or the like to uniformly reflect the light beam from the light source.

[0049] The imaging optical system 420 captures an image of the eyeglass lens LE from the front side. For example, the imaging optical system 420 includes a concave mirror 413, an aperture 421, an imaging lens 422, an imaging element 423, and the like. For example, the aperture 421 is disposed at the focal position (approximate focal position) of the concave mirror 413. For example, the aperture 421 has a conjugate (approximately conjugate) positional relationship with the light source 411. For example, the imaging element 423 captures an image of a reflected light beam emitted from the light source 411 and reflected by the retroreflective member 415. For example, the focal position of the imaging element 423 is adjusted to the vicinity of the front surface of the eyeglass lens LE. This allows at least one of the print mark, hidden mark, marking point, and the like of the eyeglass lens LE to be captured in an approximately focused state.

[0050] <Control Unit> 5 is a schematic diagram of a control system in the layout setting device 1. For example, the control unit 60 is electrically connected to the monitor 2, a non-volatile memory 65 (hereinafter, memory 65), and the like. Also, for example, the control unit 60 is electrically connected to the motor 34 of the cup attachment mechanism 30, a motor (not shown) of the X-direction movement mechanism 35, a motor (not shown) of the Y-direction movement mechanism 36, a motor (not shown) of the Z-direction movement mechanism 37, and the like. Also, for example, the control unit 60 is electrically connected to the light source 411 of the eyeglass lens measurement mechanism 40, the image sensor 423, a motor (not shown) for rotating the retroreflective member 414, and the like.

[0051] For example, the control unit 60 includes a CPU (processor), a RAM, a ROM, etc. For example, the CPU may control the driving of each unit in the layout setting device 1. For example, the RAM may temporarily store various information. For example, the ROM may store various programs executed by the CPU.

[0052] <Control action> The control operation of the layout setting device 1 having the above-mentioned configuration will be described.

[0053] The layout setting device 1 of this embodiment can set layout data for creating glasses. For example, the layout data may be data indicating the positional relationship of the optical center with respect to the outline shape of the lens LE.

[0054] 6 is an example of the layout data of the lens LE. For example, the layout data may include at least one of the following: the interpupillary distance PD between the left and right eyes of the spectacles wearer, the left and right lens shape (left lens OL and right lens OR), the distance FPD between the geometric centers of the left and right lenses (the distance between the geometric center PCL of the left lens and the geometric center PCR of the right lens), the distance DBL between the nose ends of the left and right lenses (the distance between the nose end PEL of the left lens and the nose end PER of the right lens), the height data DHL of the lens optical center OCL relative to the geometric center PCL of the left lens, and the height data DHR of the lens optical center OCR relative to the geometric center PCR of the right lens. Note that the center of a box (rectangle) surrounding the shape of the lens seen from the front is the geometric center PCL and the geometric center PCR, and the position of the nose side edge relative to such a box is the nose end PEL and the nose end PER.

[0055] For example, the layout data is created by an operator inputting each piece of data to the layout setting device 1 or receiving each piece of data from another device. However, for example, the operator may deform the lens shape of the lens LE after creating the layout data for the lens LE. As an example, the lens shape may be deformed when a progressive lens is assembled into a two-point frame.

[0056] For example, since a two-point frame does not have a rim surrounding the lens, the lens shape can be easily deformed, unlike a full-rim frame or the like that has a rim surrounding the entire circumference of the lens. For example, a progressive lens may not fit into the lens shape, particularly the near portion. In such a case, the lens shape may be deformed and adjusted so that the far portion and the near portion fit into the lens shape appropriately. For example, only the vertical width of the lens shape may be deformed, or the horizontal width may be deformed further in consideration of the appearance of the lens shape. However, when the lens shape of the lens LE is deformed and processed, and assembled into a two-point frame, the finish may not be satisfactory.

[0057] Fig. 7 is an example of layout data of a lens LE. Fig. 7(a) is a diagram showing a schematic diagram of deformation of a lens shape (hereinafter, lens shape deformation). Fig. 7(b) is a diagram showing layout data after the lens shape deformation. Fig. 7(c) is a diagram showing a state in which the lens LE is processed based on the layout data of Fig. 7(b) and assembled to a two-point frame.

[0058] For example, when the operator deforms the lens LE, the operator stretches the nose side of the lens shape. For example, the operator stretches the nose end PEL of the lens for the left eye diagonally upward toward the right eye, and stretches the nose end PER of the lens for the right eye diagonally upward toward the left eye. In this case, for example, the shape of the lens LE shown by the dotted line before the lens LE is deformed becomes the shape shown by the solid line after the lens LE is deformed.

[0059] For example, when the lens LE is deformed, a predetermined calculation is performed in accordance with the deformation of the lens shape, and the layout data is changed as appropriate. For example, the left eye lens shape and the right eye lens shape after the deformation of the lens LE are arranged while maintaining the distance DBL1 between the nose side ends before the deformation of the lens LE. Also, for example, since the geometric centers of the left eye lens shape and the right eye lens shape change due to the deformation of the lens LE, the geometric center distance FPD1 before the deformation of the lens shape is recalculated, and becomes the geometric center distance FPD2 after the deformation of the lens shape. Note that, for example, the pupil distance PD1 between the left and right eyes of a spectacle wearer is a value specific to the wearer, and does not change before and after the deformation of the lens shape.

[0060] Also, for example, when the lens LE is deformed, the hole position H for assembling the bridge of the two-point frame is recalculated. For example, the left and right positions of the hole position H after the lens LE are set while maintaining the distance D1 from the hole position H before the lens LE deformation to the horizontal lens end HE. For example, the vertical direction of the hole position H is set to a fixed position before and after the lens LE deformation. Therefore, for example, the hole distance DBH between the hole position H of the left eye lens and the hole position H of the right eye lens is a different distance before and after the lens deformation. In other words, the bridge width connecting the left eye lens and the right eye lens is a different distance before and after the lens deformation.

[0061] For example, when the layout data is reset in this manner when the lens LE is deformed, the positional relationship between the pupil position P1 and the hole position H of the left eye lens, the positional relationship between the pupil position P1 and the hole position H of the right eye lens, and the positional relationship between the left and right pupil positions and the left and right hole positions in the left and right eye lenses will shift before and after the lens shape deformation.

[0062] For example, if the periphery of the lens LE is processed based on the layout data after the lens shape deformation so that the optical center of the lens LE is located at the pupil position P1 of the wearer on the lens LE, and the lens LE is assembled into a two-point frame, the eyeglasses may not be finished according to the layout due to the misalignment of the positional relationship between the left and right pupil positions and the left and right hole positions described above. For example, since the hole distance DBH is long compared to the bridge width DB of the two-point frame, the left eye lens shape and the right eye lens shape are actually assembled in a state where they are moved inward from each other. As a result, the pupil distance PD1 on the lens LE becomes shorter than the wearer's original pupil distance PD2, and the optical center of the lens LE is not located at the actual pupil position P2 of the wearer. For example, in such a state, it is not possible to manufacture good eyeglasses for the wearer.

[0063] In this embodiment, the distance DBL1 of the nose end of the two-point frame is acquired, and the layout data for the left and right lens shapes is set based on the distance DBL1 of the nose end, and when the bridge width changes before and after the lens shape deformation, the layout data is reset in consideration of the change in the bridge width. For example, in more detail, the layout data after the lens shape deformation is reset so that the change in the bridge width is offset to suppress the occurrence of a deviation between the pupil position P1 (pupillary distance PD1) of the wearer on the lens LE and the pupil position P2 (pupillary distance PD2) of the actual wearer, and the pupil position P2 of the actual wearer and the optical center coincide (substantially coincide) after the lens LE is assembled. This will be described in detail below.

[0064] <Obtaining the lens shape> First, the operator obtains the lens shape of the lens LE. For example, in the case of a two-point frame, the outer shape of a demo lens may be obtained as the lens shape of the lens LE.

[0065] For example, the operator places the demo lens on the support pins 14 and operates the monitor 2 to press an image capture start button (not shown). For example, the control unit 60 controls the lens information measuring mechanism 40 based on an operation signal from the monitor 2 to capture an image of the entire demo lens. For example, the control unit 60 may detect the outer shape of the demo lens by performing image processing on the entire image of the demo lens. Also, for example, the control unit 60 may detect the shape and position of holes formed in the demo lens by performing image processing on the entire image of the demo lens.

[0066] For example, the target lens shape, hole shape, and hole position of the lens LE may be obtained by capturing images of both the left and right demo lenses to obtain data for each of the left and right, or one of the left and right demo lenses may be captured and then inverted to obtain data for the other. For example, the control unit 60 stores the target lens shapes for the left and right of the lens LE in the memory 65.

[0067] <Lens processing conditions and layout settings> Next, in order to set layout data of the lens LE, the operator operates the monitor 2 to call up a layout setting screen. For example, the control unit 60 displays the layout setting screen 200 (see FIG. 8) based on an operation signal from the monitor 2.

[0068] For example, the operator operates the processing condition change button 210 (see FIG. 8) to set the processing conditions of the lens LE. For example, the processing conditions may be at least any of the type of the lens LE (e.g., a single focus lens, a bifocal lens, a progressive lens, etc.), the material of the lens LE, the type of the frame, the presence or absence of various types of processing (e.g., mirror processing, chamfering, groove processing, etc.), the attachment position of the cup Cu with respect to the lens LE (e.g., the optical center of the lens LE, the geometric center of the lens shape, etc.), and the like.

[0069] Also, for example, the operator inputs various layout data in order to locate the optical center relative to the target shape of the lens LE. For example, the operator may input the interpupillary distance PD, the geometric center distance FPD, the nose end distance DBL, the height of the lens optical center relative to the geometric center, etc. as layout data. Also, for example, the operator may input the bridge width DB of the two-point frame as layout data.

[0070] <Layout settings based on lens shape> 8 is an example of a layout setting screen 200 having an input section (display section) for a bridge width. For example, left and right lens shape data are displayed on the layout setting screen 200. In addition, for example, the layout setting screen 200 may be provided with a processing condition change button 210, a lens shape transformation button 211, and the like.

[0071] For example, the left eye lens shape data displays a left eye lens OL, which is the outer shape of a demo lens. For example, the left eye lens OL displays a hole position 201 on the ear side of the left eye lens and a hole position H on the nose side of the left eye lens. For example, the left eye lens shape data further includes an input section (display section) for parameters such as the optical center OCL of the left eye lens, the geometric center PCL of the left eye lens, and the height DHL of the lens optical center relative to the geometric center of the left eye lens.

[0072] Similarly, for example, the lens shape data for the right eye displays the lens shape OR for the right eye, which is the outer shape of the demo lens. For example, the right lens shape OR displays the hole position 203 on the ear side of the lens shape for the right eye and the hole position H on the nose side of the lens shape for the right eye. For example, the lens shape data for the right eye further includes an input section (display section) for parameters such as the optical center OCR of the lens shape for the right eye, the geometric center PCR of the lens shape for the right eye, and the height DHR of the lens optical center relative to the geometric center of the lens shape for the right eye.

[0073] For example, the left eye lens shape data and right eye lens shape data include an input section (display section) for parameters such as the distance FPD between the geometric centers of the left eye lens and the right eye lens, the interpupillary distance PD of the wearer, the distance DBL between the nose side ends of the left eye lens and the right eye lens, and the distance DBH between the hole positions of the left eye lens and the right eye lens (in other words, the bridge width DB).

[0074] For example, the operator inputs the interpupillary distance PD of the wearer to the input unit 206. For example, the control unit 60 sets the left and right pupil positions as the optical center OCL of the left-eye lens and the optical center OCR of the right-eye lens based on the interpupillary distance PD of the wearer.

[0075] For example, the operator measures the bridge width of the two-point frame with a ruler or the like, and inputs it to the input unit 209 as the distance DBH between the hole positions of the left and right lenses. For example, the control unit 60 moves the left and right lenses based on the distance DBH between the hole positions of the left and right lenses. For example, at this time, the left and right hole positions move together with the left and right lenses. For example, the control unit 60 may calculate the distance DBL between the nose side ends of the left and right lenses based on the positions of the left and right lenses after they are moved, and display this on the input unit 207.

[0076] Also, for example, the operator checks the boxing standard printed on the two-point frame and inputs the distance DBL between the nose ends of the left and right lenses into the input unit 207. For example, the control unit 60 moves the left and right lenses based on the distance DBL between the nose ends of the left and right lenses. For example, at this time, the left and right hole positions move integrally together with the left and right lenses. For example, the control unit 60 may calculate the bridge width (the distance DBH between the hole positions) of the left and right lenses based on the positions of the left and right lenses after they are moved, and display this on the input unit 209.

[0077] In addition, since the bridge width of the two-point frame and the distance DBL between the nose ends of the left and right lenses can be calculated by inputting at least one of them, it is not necessary to input both.

[0078] For example, the control unit 60 calculates the geometric center distance FPD between the left and right lenses based on the positions of the left and right lenses after the movement, and displays it on the input unit 205. As an example, the geometric center PCL is obtained from the left lens OL, and the geometric center PCR is obtained from the right lens OR, and the distance of half the left and right width of the left and right lenses (the distance from the geometric center to the nose end) and the distance DBL of the nose end of the left and right lenses are added to calculate the geometric center distance FPD between the left and right lenses, and the input unit 205 may display it.

[0079] For example, the control unit 60 may calculate the height DHL of the lens optical center relative to the left eye lens shape and the height DHR of the lens optical center relative to the geometric center of the right eye lens shape based on the geometric centers of the left and right lens shapes and the pupil position (optical center), and display this on the input unit 202 and the input unit 208.

[0080] For example, when layout data for the lens LE lens shape is set, the pupil position P1 (optical center OCL) and hole position H on the left eye lens 200 are positioned at predetermined positions, and the pupil position P1 (optical center OCR) and hole position H on the right eye lens 200 are positioned at predetermined positions, thereby determining the positional relationship between the left and right pupil positions and the left and right hole positions in the left and right lens shapes.

[0081] <Eye shape deformation> Here, the operator changes the lens shape and changes the layout data. For example, the operator presses the lens shape transformation button 211 on the layout setting screen 200. For example, the control unit 60 displays the lens shape transformation screen 300 based on an input signal from the lens shape transformation button 211.

[0082] 9 is an example of the lens shape transformation screen 300. For example, either left or right lens shape data is displayed on the lens shape transformation screen 300. In addition, for example, the lens shape transformation screen 300 may be provided with a plus button 307, a minus button 308, a step width change button 309, a screen switching button 310, and the like.

[0083] For example, as the shape data of the left or right lens, the left-eye lens OL set in the layout setting screen 200 is displayed. For example, the left-eye lens OL includes an input section (display section) for parameters such as a vertical width 301 of the lens, an upper dimension 302 in the vertical width of the lens, a lower dimension 303 in the vertical width of the lens, a left-right width 304 of the lens, a nose-side dimension 305 in the horizontal width of the lens, and an ear-side dimension 306 in the horizontal width of the lens.

[0084] For example, the operator manipulates the monitor 2 to drag the outer shape of the left-eye lens OL to deform the lens shape. For example, the control unit 60 calculates the deformation amount (increase / decrease amount) of the vertical width 301 and horizontal width 304 of the lens shape by a predetermined calculation in accordance with the deformation of the left-eye lens OL, and displays it in the input unit for each parameter (for details, see, for example, Japanese Patent No. 5065645). In addition, for example, the control unit 60 recalculates the hole position H after the lens shape deformation in accordance with the deformation of the left-eye lens OL, and reflects it in the lens shape data.

[0085] FIG. 10 is a diagram for explaining recalculation of the hole position accompanying the lens shape deformation. For example, when the nose end position Pe before the lens shape deformation shown by the dotted line is moved horizontally to the nose end position pe after the lens shape deformation shown by the solid line by the deformation amount Δd1, the hole position H is moved based on the deformation amount Δd1. For example, the hole position H may be moved horizontally by the movement amount Δd2 that is a predetermined ratio to the deformation amount Δd1 so that the distance D1 from the hole position H to the lens shape end HE in the horizontal direction is kept constant before and after the lens shape deformation. As an example, the hole position H may be moved horizontally so that the deformation amount Δd1 and the movement amount Δd2 have a 1:1 relationship.

[0086] The operator may deform the lens shape by inputting each parameter instead of dragging the outer shape of the left-eye lens OL. In this case, the operator can increase or decrease the deformation amount in a predetermined step width by pressing the plus button 307 or the minus button 308 after selecting the input section of each parameter. In addition, the operator can set the predetermined step width to an arbitrary value such as 0.10 mm, 0.25 mm, 0.50 mm, etc. by pressing the step width change button 309.

[0087] When the operator changes the lens shape to a desired lens shape, he or she presses the screen switching button 310 to return to the layout setting screen 200. For example, the control unit 60 determines the left-eye lens shape OL' after the lens shape change based on the operation signal from the screen switching button 310 and stores it in the memory 65. Also, for example, the control unit 60 flips the left-eye lens shape OL' horizontally to obtain the right-eye lens shape OR' after the lens shape change and stores it in the memory 65. Also, for example, the control unit 60 transitions the screen of the monitor 2 from the lens shape change screen 300 to the layout setting screen 220 after the lens shape change based on the operation signal from the screen switching button 310.

[0088] 11 is an example of a layout setting screen 220 after the lens shape transformation. For example, the layout setting screen 220 displays at least the left and right lens shape data. For example, as the lens shape data for the left eye, the left eye lens shape OL' after the lens shape transformation is displayed, and as the lens shape data for the right eye, the right eye lens shape OR' after the lens shape transformation is displayed. Note that, for example, other parameters in the lens shape data for the left eye and the lens shape data for the right eye are the same as those in the layout setting screen 200 before the lens shape transformation, and therefore the description will be omitted.

[0089] For example, in the layout setting screen 220, the layout data after the target lens shape deformation is reset using either the bridge width DB (the distance between the hole positions DBH) of the two-point frame or the distance DBL of the nose side end. The following will explain each step in order.

[0090] <When using bridge width> For example, the control unit 60 may position the left-eye lens OL' and the right-eye lens OR' after the lens LE is deformed while maintaining the bridge width (the distance between the hole positions DBH) input before the lens LE is deformed. For example, the hole position H of the left-eye lens OL' moves integrally with the left-eye lens OL', and the hole position H of the right-eye lens OR' moves integrally with the right-eye lens OR'.

[0091] For example, the control unit 60 recalculates the distance DBL between the nose ends of the left and right lenses, the distance FPD between the geometric centers of the left and right lenses, etc., based on the positions after the movement of the left and right lens OL' and OR', and displays them on the respective input units. Note that, for example, since the interpupillary distance PD of the wearer is a value unique to the wearer, the left and right pupil positions (optical centers) are set while maintaining the interpupillary distance PD input before the lens shape is transformed.

[0092] For example, by arranging the left and right lens shapes and the left and right hole positions using the bridge width (distance between hole positions DBH) of the two-point frame in this way, the positional relationship between the left and right pupil positions and the left and right hole positions in the left and right lens shapes can be maintained constant before and after the lens shape deformation. That is, before and after the lens shape deformation, the left and right pupil positions are arranged at the same positions, and the left and right hole positions are arranged at the same positions. Therefore, for example, the hole distance DBH does not become long (or short) relative to the bridge width DB. Therefore, it is possible to suppress the deviation between the pupil position (optical center) of the wearer set on the lens LE and the actual pupil position of the wearer, which may occur when the lens LE is processed based on the layout data after the lens shape deformation and the lens LE is assembled to the two-point frame.

[0093] In addition, in the layout setting screen 200 before the lens LE is transformed into a lens shape and the layout setting screen 220 after the lens shape is transformed, the nose end distance DBL and the geometric center distance FPD are automatically recalculated before and after the lens shape is transformed, so that the values ​​change, which may not be appropriate for the operator. For example, if the operator has little knowledge, the change in the values ​​of these parameters may cause confusion. However, as in this embodiment, when the bridge width is displayed on the layout setting screen, the input unit 209 of the distance DBH between the hole positions always shows the same value, so the operator can easily confirm that the layout data of the lens LE is correct.

[0094] <When using the distance from the nose edge> In the above, the bridge width DB of the two-point frame is used, but the distance DBL between the nose side ends of the left and right lenses may be used to reset the layout data after the lens shape is transformed. For example, when the control unit 60 displays the layout setting screen based on the operation signal from the screen switching button 310, the control unit 60 sets the distance DBL between the nose side ends to different values ​​before and after the lens shape is transformed.

[0095] FIG. 12 is an example of a layout setting screen 230 after lens shape transformation. For example, the layout setting screen 230 displays at least the left eye lens shape OL' after lens shape transformation and the right eye lens shape OR' after lens shape transformation as left and right lens shape data. For example, the left and right lens shape data may include an input unit (display unit) 207 for inputting the distance DBL between the nose side ends of the left and right lenses instead of the distance DBH between the hole positions of the left and right lenses (or together with the distance DBH between the hole positions of the left and right lenses). Note that the other parameters are the same as those of the layout setting screen 220 (see FIG. 8) described above.

[0096] For example, the control unit 60 may calculate the distance DBL' of the nose side end after the lens shape deformation based on the distance DBL of the nose side end before the lens shape deformation. For example, the control unit 60 may calculate the distance DBL' of the nose side end after the lens shape deformation based on the change in the left and right hole positions before the lens shape deformation and the left and right hole positions after the lens shape deformation.

[0097] For example, when the position Pc of the nose side end before the lens shape deformation is moved horizontally by a deformation amount Δd1 to the position pc of the nose side end after the lens shape deformation (see FIG. 10), the hole position H moves by a movement amount Δd2 based on the horizontal deformation amount Δd1 as described above. For example, at this time, the distance D1 from the hole position H to the lens shape end HE in the horizontal direction is constant before and after the lens shape deformation, but the distance from the hole position H to the nose side end PHL changes. As an example, the distance from the hole position H to the nose side end PHL before the lens shape deformation is a first distance Δh1, while the distance from the hole position H to the nose side end PHL after the lens shape deformation is a second distance Δh2.

[0098] For example, the control unit 60 may calculate the distance DBL' of the nose side end after the lens shape deformation by subtracting the difference between the first distance Δh1 and the second distance Δh2 of the left and right lenses from the distance DBL of the nose side end before the lens shape deformation in the left and right lenses. As an example, if the distance DBL of the nose side end before the lens shape deformation in the left and right lenses is 25 mm, the difference between the first distance Δh1 and the second distance Δh2 of the left eye lens is 2.5 mm, and the difference between the first distance Δh1 and the second distance Δh2 of the right eye lens is 2.5 mm, the distance DBL' of the nose side end after the lens shape deformation is 20 mm. For example, the control unit 60 may cause the input unit 207 to display the distance DBL' of the nose side end after the lens shape deformation.

[0099] For example, the control unit 60 may position the left eye lens OL' and the right eye lens OR' after the lens LE is deformed so that the distance between the nose end after the lens shape is calculated as DBL'. For example, the hole position H of the left eye lens OL' moves together with the left eye lens OL', and the hole position H of the right eye lens OR' moves together with the right eye lens OR'.

[0100] For example, the control unit 60 recalculates the geometric center distance FPD between the left and right lenses, the distance DBH between the hole positions of the left and right lenses, etc., based on the positions after the movement of the left eye lens OL' and the right eye lens OR', and displays them on the respective input units. Note that, for example, since the interpupillary distance PD of the wearer is a value unique to the wearer, the left and right pupil positions (optical centers) are set while maintaining the interpupillary distance PD input before the lens deformation.

[0101] For example, even when the left and right lens shapes and the left and right hole positions are arranged using the distance DBL between the nose end of the left and right lens shapes in this way, the positional relationship between the left and right pupil positions and the left and right hole positions in the left and right lens shapes can be maintained constant before and after the lens shape deformation. That is, the left and right pupil positions are arranged at the same positions before and after the lens shape deformation, and the left and right hole positions are arranged at the same positions. Therefore, for example, while using the distance DBL between the nose end of the left and right lens shapes as an index, it is possible to adjust so that the hole distance DBH is not longer (or shorter) than the bridge width. Therefore, it is possible to suppress the deviation between the pupil position (optical center) of the wearer set on the lens LE and the actual pupil position P2 of the wearer, which may occur when the lens LE is processed based on the layout data after the lens shape deformation and the lens LE is assembled to the two-point frame.

[0102] For example, after the operator has deformed the lens LE and finished setting the layout data, the operator places the lens LE on the support pins 14, attaches the cup Cu to the attachment portion 31 of the cup attachment mechanism 30, and operates an axis setting button (not shown). For example, the control unit 60 attaches the cup Cu to an appropriate position (for example, the position of the optical center) on the front surface of the lens LE based on an operation signal from the axis setting button.

[0103] As described above, for example, the layout setting device of this embodiment includes a lens shape acquisition means for acquiring the left and right lens shapes of the eyeglass lens, a hole position acquisition means for acquiring the left and right hole positions for assembling the bridge of the eyeglass frame, which are the left and right hole positions for the left and right lens shapes of the eyeglass lens, a pupil position acquisition means for acquiring the left and right pupil positions for the left and right lens shapes based on the interpupillary distance of the eyeglass wearer, and a layout setting means for setting a layout in which the left and right pupil positions and the left and right hole positions are arranged for the left and right lens shapes, and when at least one of the left and right lens shapes is deformed, the layout setting means resets the layout while maintaining the relative positions of the left and right hole positions and the left and right pupil positions. For example, when a progressive lens is assembled to a two-point frame, the vertical width or the horizontal width of the lens lens shape may be deformed. For example, if the hole position for assembling the bridge is not set appropriately on the layout data created with the lens shape deformation, when the lens is processed and assembled to the eyeglass frame, there is a possibility that the pupil position on the layout data of the lens will be misaligned with the pupil position of the actual wearer, resulting in an insufficient finish. However, as in this embodiment, by maintaining the relative positions of the left and right hole positions and the pupil position on the layout data of the lens before and after the lens shape deformation, it is possible to set appropriate layout data even after the lens shape deformation, and it is possible to suppress the occurrence of such misalignment during assembly.

[0104] For example, the layout setting device of this embodiment includes a bridge width acquisition means for acquiring the bridge width of the eyeglass frame, and the layout setting means resets the layout by integrally moving the left and right lens shapes and the left and right hole positions so as to maintain the relative positions between the left and right pupil positions and the left and right hole positions based on the bridge width. For example, the lens lens shape and the hole positions are moved in consideration of the bridge width of the eyeglass frame before and after the lens lens deformation, so that the relative positions between the left and right pupil positions and the left and right hole positions can be easily maintained. Therefore, it is easy to suppress the deviation between the pupil position on the layout data and the actual pupil position that may occur when the lens is assembled to the eyeglass frame.

[0105] Also, for example, in the layout setting device of this embodiment, the layout setting means moves the left and right lens shape and the left and right hole positions integrally so that the hole distance, which is the distance between the left and right hole positions, matches the bridge width. For example, if the distance between the left and right hole positions for assembling the bridge on the layout data is different from the bridge width before and after the lens lens deformation, the lens is moved when the lens is assembled to the eyeglass frame, and a deviation may occur between the pupil position on the layout data and the actual pupil position. However, for example, by appropriately setting the hole positions so that the distance between the left and right hole positions matches the bridge width, the occurrence of such a deviation can be easily suppressed. Note that, for example, as described above, it is preferable that the bridge width of the eyeglass frame is a fixed width regardless of the lens shape deformation and takes a constant value. Therefore, by directly using the bridge width parameter as a layout parameter for the lens shape, the operator can intuitively understand the layout setting.

[0106] For example, the layout setting device of this embodiment includes a nose end distance acquisition means for acquiring the distance between the nose end of the left and right lens shapes, and the layout setting means moves the left and right lens shapes based on the distance between the nose end so as to maintain a constant relative relationship between the left and right pupil positions and the left and right hole positions. For example, the lens shape and the hole positions are moved in consideration of the distance between the nose end before and after the lens lens deformation, so that the relative positions between the left and right pupil positions and the left and right hole positions can be easily maintained. Therefore, it is easy to suppress the deviation between the pupil position on the layout data and the actual pupil position that may occur when the lens is assembled into the eyeglass frame.

[0107] For example, the layout setting device of this embodiment includes a hole position correction means for correcting the left and right hole positions for the left and right lens shapes based on the deformation of the left and right lens shapes, and the nose end distance acquisition means acquires the nose end distance based on the change of the left and right hole positions before the deformation of the left and right lens shapes and the left and right hole positions after the deformation of the left and right lens shapes. For example, if the distance of the nose end of the lens before the deformation of the lens shape and the distance of the nose end of the lens after the deformation of the lens shape are set to the same distance, the lens may be separated when the lens is assembled to the eyeglass frame, and a deviation may occur between the pupil position on the layout data and the actual pupil position. However, for example, the occurrence of such a deviation can be easily suppressed by recalculating the distance of the nose end after the deformation of the lens shape based on the change of the hole position before and after the deformation of the lens shape and appropriately setting the hole position.

[0108] Also, for example, in the layout setting device of this embodiment, the hole position correction means corrects the hole position based on the position of the nose end due to the deformation of the left and right lens shapes, and the nose end distance acquisition means acquires the distance of the nose end based on the difference between the first distance from the hole position to the nose end before the deformation of the left and right lens shapes and the second distance from the hole position to the nose end after the deformation of the left and right lens shapes. For example, the difference between the first distance and the second distance corresponds to the change in the bridge width before and after the lens shape deformation. Therefore, for example, by subtracting the difference between the first distance and the second distance from the distance of the nose end before the lens shape deformation, the distance of the nose end after the lens shape deformation can be recalculated so that the bridge width before and after the lens shape deformation is kept constant, and the hole position can be appropriately set. Therefore, it is possible to easily suppress the deviation between the pupil position on the layout data and the actual pupil position that may occur when the lens is assembled to the eyeglass frame.

[0109] Also, for example, the layout setting device of this embodiment includes a display means for displaying a layout screen for setting the layout of the eyeglass lenses, and a display control means for displaying at least the bridge width on the layout screen. For example, when the lens is deformed into a lens shape, the distance FPD between the geometric centers of the left and right lenses, the distance DBL between the nose ends of the left and right lenses, etc. are recalculated with the deformation into a lens shape. For example, for an inexperienced operator, the same parameters are expressed as different values ​​before and after the deformation into a lens shape, so that the operator may feel uneasy because he or she cannot determine whether the fluctuation of these values ​​is problematic. However, by displaying the bridge width, whose value does not change before and after the deformation into a layout screen and checking the bridge width, even an inexperienced operator can easily perform the deformation into a lens shape.

[0110] <Example of transformation> In the layout setting device of this embodiment, the operator manually inputs the bridge width DB and the distance DBL between the nose ends of the left and right lenses, and calculates the geometric center distance FPD between the left and right lenses based on the distance DBL between the nose ends of the left and right lenses. However, the present invention is not limited to this. For example, at least one of the bridge width, the distance DBL between the nose ends of the left and right lenses, the geometric center distance FPD between the left and right lenses, etc. may be obtained by receiving the corresponding design information using a database in which design information about eyeglass frames is stored in advance. [Explanation of symbols]

[0111] 1 Layout setting device 2 Display (monitor) 10 Lens support mechanism 14 Support pin 30 Cup attachment mechanism 40 Eyeglass lens measuring mechanism 41 Light source 44 Index board 48 Image sensor 60 Control section

Claims

1. A layout setting device for setting a layout for processing a peripheral edge of a spectacle lens, A lens shape acquisition means for acquiring the left and right lens shapes of the eyeglass lens; a hole position acquiring means for acquiring left and right hole positions for the left and right lens shapes of the eyeglass lens, which are hole positions for assembling a bridge of an eyeglass frame; a pupil position acquiring means for acquiring left and right pupil positions relative to the left and right lens shapes based on the interpupillary distance of the eyeglass wearer; a layout setting means for setting a layout in which the left and right pupil positions and the left and right hole positions are arranged for the left and right lens shape; Equipped with The layout setting device is characterized in that, when at least one of the left and right lens shape shapes is deformed, the layout setting means resets the layout while maintaining relative positions of the left and right hole positions and the left and right pupil positions.

2. 2. The layout setting device according to claim 1, a bridge width acquisition means for acquiring the width of the bridge of the eyeglass frame; the layout setting means resets the layout by integrally moving the left and right lens shape shapes and the left and right hole positions based on the bridge width so as to maintain the relative positions between the left and right pupil positions and the left and right hole positions.

3. 3. The layout setting device according to claim 1, The layout setting device is characterized in that the layout setting means moves the left and right target lens shapes and the left and right hole positions together so that the hole-to-hole distance, which is the distance between the left and right hole positions, matches the bridge width.

4. 2. The layout setting device according to claim 1, a nose-side distance acquisition means for acquiring a distance between the nose-side ends of the left and right lens shapes; the layout setting means moves the left and right lens shapes so as to maintain the relative relationship between the left and right pupil positions and the left and right hole positions constant based on the distance between the nose-side ends.

5. A layout setting program used in a layout setting device that sets a layout for processing a peripheral edge of an eyeglass lens, comprising: When executed by the processor of the layout setting device, a lens shape acquisition step of acquiring left and right lens shapes of the eyeglass lens; a hole position acquisition step of acquiring left and right hole positions for the left and right lens shapes of the eyeglass lens, which are hole positions for assembling a bridge of an eyeglass frame; a pupil position acquisition step of acquiring left and right pupil positions relative to the left and right lens shapes based on the interpupillary distance of the spectacle wearer; a layout setting step of setting a layout in which the left and right pupil positions and the left and right hole positions are arranged for the left and right lens shape; causing the layout setting device to execute the above; The layout setting program is characterized in that the layout setting step, when at least one of the left and right lens shape shapes is deformed, resets the layout while maintaining relative positions of the left and right hole positions and the left and right pupil positions.

Images