JP2019027945A - Spectacles measurement device - Google Patents

Abstract

To provide a lens meter that enables a measurement of a lens in a wearing state by reproducing a spectacles shape upon wearing.SOLUTION: A spectacles measurement device, which measures a lens characteristic of spectacles, comprises: adjustment means that adjusts at least any of deformation of the spectacles, and a forward tilt angle of the spectacles, and reproduces a wearing state having the spectacles worn by a wearer; and lens measurement means that measures a lens characteristic of the spectacles having the wearing state reproduced by the adjustment means. The adjustment means comprises forward tilt angle adjustment means that changes a forward tilt angle by moving at least any position of a position of a forward site of the spectacles and a position of a rearward site of the spectacles in upper and lower directions.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to an eyeglass measurement device that measures optical characteristics of a lens.

  A lens meter is known as an example of a spectacle measuring device. The lens meter measures the optical characteristics (for example, refractive power, etc.) of the lens to be measured by projecting measurement light onto the lens and receiving the measurement light transmitted through the lens with a light receiving element (see Patent Document 1). .

  By the way, when wearing eyeglasses (glasses frame), the widths of the left and right temple portions change depending on the head width of the wearer. When wearing spectacles, the temple portion grips the wearer's head and the reaction force deforms the spectacles. When wearing spectacles, the forward tilt angle of the spectacles changes depending on the height of the wearer's ear, the type of spectacles, the thickness and weight of the lens framed in the rim portion of the spectacles, and the like.

JP 2008-241694 A

  When producing spectacles, it is desirable to measure the lens in consideration of the shape of the spectacles when worn. However, in the conventional lens meter, the lens measurement considering the width of the temple portion and the forward tilt angle has not been performed. When the spectacles obtained by processing and producing the lens using the measurement values obtained in this state are actually worn, there are cases where the appearance does not conform to the prescription and is not good for the wearer.

  In view of the above prior art, it is an object of the present disclosure to provide a lens meter capable of measuring a lens by reproducing the shape of glasses when worn.

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

  (1) The spectacle measuring device according to the first aspect of the present disclosure is a spectacle measuring device that measures lens characteristics of spectacles, and adjusts at least one of the deformation of the spectacles and the forward tilt angle of the spectacles, An adjustment unit that reproduces a wearing state in which the spectacles are worn by a wearer, and a lens measurement unit that measures lens characteristics of the glasses in which the wearing state is reproduced by the adjustment unit.

It is a figure which shows spectacles. It is a schematic block diagram of an eyeglass measuring device. It is a figure which shows the optical system in a spectacles measuring device. It is a perspective view of a spectacles measuring device. It is a right view of an eyeglass measuring device. It is a left view of an eyeglass measuring device. It is a front view of a spectacles measuring device. It is a rear view of a spectacles measuring device. It is a figure which shows the control system in a spectacles measuring device. It is a figure explaining the gravity center position of spectacles. It is a figure which shows an example of balance information. It is a figure which shows the wearing condition which the wearer wore spectacles. It is a figure which shows the relationship between a corneal vertex distance and refractive power.

<Overview>
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, L and R attached | subjected to a code | symbol in this indication show the object for left, and the object for right, respectively. In addition, the parallel in the present disclosure includes a completely parallel state and a substantially parallel state. In addition, the vertical in the present disclosure includes a completely vertical state and a substantially vertical state. In addition, the same in the present disclosure includes completely the same state and substantially the same state. In addition, the items classified by <> below can be used independently or in association with each other.

  Note that the front and rear, and the upper and lower sides of the glasses in the present disclosure are directions based on a state in which the wearer wears the glasses. That is, the front of the glasses is the side where the rim is located, and the rear of the glasses is the side where the modern is located. Further, the upper side of the glasses is the upper end side of the rim, and the lower side of the glasses is the lower end side of the rim. Further, for the spectacle measuring device according to the present disclosure, the depth direction (front-rear direction) is the Z direction, the horizontal direction (left-right direction) on the plane perpendicular to the depth direction is the X direction, and the vertical direction on the plane perpendicular to the depth direction is The (vertical direction) will be described as the Y direction.

  For example, the spectacle measuring device (for example, spectacle measuring device 1) in the present embodiment detects the fitting state of spectacles (for example, spectacles F). Further, for example, the spectacle measuring device measures the optical characteristics of a lens (for example, the lens LE). The optical characteristics of the lens may be spherical power S, columnar power C, astigmatic axis angle A, prism amount Δ, and the like.

  For example, the eyeglass measurement device includes lens measurement means (for example, the measurement optical system 10). In addition, for example, the spectacles measuring device includes support means (for example, spectacles support unit 3). Further, for example, the spectacle measuring device includes a measuring unit (for example, the measuring unit 4). Further, for example, the spectacle measuring device includes an acquisition unit (for example, the control unit 60). Further, for example, the eyeglass measurement device includes a drive unit (for example, the drive unit 5). Further, for example, the eyeglass measurement device includes an adjustment unit (for example, the forward tilt adjustment mechanism 5b, the temple adjustment unit 100).

  For example, the lens measuring unit measures the lens characteristics of the glasses in which the wearing state is reproduced by the adjusting unit. For example, the lens measurement unit projects measurement light onto the lens, and receives the measurement light that has passed through the lens and the indicator plate (for example, the indicator plate 13) with a light receiving element (for example, the light receiving element 14). The structure which measures an optical characteristic may be sufficient. For example, the lens measuring unit may include at least a light receiving element and a light source (for example, the light source 11). In this case, for example, the lens measuring means may include an indicator plate. In addition, for example, the lens measurement unit may include a condenser lens (for example, the condenser lens 12).

  For example, the support means supports spectacles. For example, the support means supports the glasses at at least two places. For example, in this case, the support unit may be configured to support two or more places including the position of the front part of the glasses and the position of the rear part of the glasses. For example, the position of the front part of the spectacles may be a position ahead of the center position in a state where the wearer wears the spectacles. That is, the position of the front part of the glasses may be a bridge (for example, bridge FB) or a rim (for example, rim FR) of the glasses. Further, for example, the position of the rear part of the spectacles may be a position behind the center position of the state where the wearer wears the spectacles. That is, the position of the rear part of the glasses may be a temple (for example, temple FT) or a modern (for example, modern FM) of the glasses.

  For example, a measurement unit may be arranged at the position of the support unit. That is, the measuring means may be used as the supporting means and may be provided integrally. Of course, the measurement means may be provided separately from the support means. For example, as the measurement unit, a measurement sensor capable of measuring weight (for example, the measurement sensor 4a, the measurement sensor 4b, and the measurement sensor 4c) can be used. For example, such a sensor may be a pressure sensor. Further, for example, such a sensor may be a weight sensor. For example, since the measuring means for measuring the weight of the glasses is arranged at the position of the supporting means for supporting the glasses, the operator can obtain the weight of the glasses at the position for supporting the glasses with a simple configuration. .

<Measuring means>
For example, the measuring means measures the weight at least at two places (for example, two places, three places, four places, etc.) of the glasses. For example, in this case, the measurement means may be configured to measure the weight at at least two positions of the position of the front part of the glasses and the position of the rear part of the glasses. As the position of the front part of the glasses, the weight at the position of the bridge of the glasses may be measured. In this case, the position of the bridge may be any position of the bridge portion, may be the center of the bridge, or may be the end of the bridge. Further, as the position of the rear part of the glasses, the weight at the modern position of the glasses may be measured. In this case, the modern position may be any position of the modern part, may be the center of the modern area, or may be the edge of the modern area.

  For example, the measuring means may be configured to measure the weight of each of the modern on the left side of the glasses and the modern on the right side of the glasses as the modern position of the glasses. Further, the measuring means may be configured to measure the weight at any one of the modern position on the left side of the spectacles and the modern position on the right side of the spectacles. For example, in this case, the glasses may be regarded as being substantially symmetrical, and the weight of one of the left and right moderns may be substantially the same as the weight of the other of the left and right moderns. In this way, the weight of the modern glasses on the right side of the glasses and the weight of the modern left side of the glasses as well as the weight at the position of the bridge of the glasses may be acquired, and the center of gravity of the entire glasses may be obtained more accurately from the weights of the three points.

<Acquisition means>
For example, the acquisition unit acquires the position of the center of gravity of the glasses based on the weight detected by the measurement unit. For example, the acquisition unit may acquire the balance information of the glasses based on the position of the center of gravity after acquiring the position of the center of gravity of the glasses. For example, the balance information may be information indicating the balance position of the glasses. In this case, for example, the balance information may include a balance position of the glasses. For example, the balance information may include an ideal balance position of the glasses. For example, the balance information may include an average balance position of the glasses.

  For example, the spectacle measuring device may include an output unit (for example, a display 72) that outputs spectacle balance information. For example, the output unit may be configured to output balance information by displaying on a display or the like. For example, the output unit may be configured to output balance information by printing using a printer or the like. For example, the output unit may be configured to output balance information as data to an external memory or the like. As a result, the operator can easily determine the center of gravity position, balance, etc. of the glasses.

  For example, the measuring means measures the weight of at least two places of the spectacles, and the acquisition means acquires the center of gravity position of the spectacles based on the weight, whereby the operator can obtain the center of gravity of the spectacles, It becomes easy to adjust the center of gravity and balance. Further, for example, the operator can easily determine the fitting state of the glasses with respect to the wearer from the center of gravity of the glasses, adjust the center of gravity of the glasses possessed by the wearer, or set the center of gravity suitable for the wearer. You will be able to prescribe glasses.

<Adjustment means>
For example, the adjusting means adjusts at least one of the deformation of the glasses and the forward tilt angle of the glasses, and reproduces the wearing state in which the glasses are worn by the wearer. Of course, the adjustment means may be configured to automatically adjust the deformation and forward tilt angle of the glasses, or may be configured to adjust manually. For example, when adjusting automatically, you may provide the head width acquisition means (for example, control part 60) for acquiring the head width information of a wearer. For example, when adjusting automatically, you may provide the forward inclination angle acquisition means (for example, control part 60) for acquiring the forward inclination angle of spectacles. For example, when adjusting manually, a scale etc. may be provided in an adjustment means and an operator may adjust a deformation | transformation and forward tilt angle of spectacles based on a scale. For example, with such a configuration, the operator can measure the lens characteristics of the glasses by reproducing the wearing state in which the wearer wears the glasses. Therefore, it is possible to obtain a more accurate measurement result close to the wearing state.

<Forward tilt adjustment means>
For example, the adjusting means moves the at least one of the position of the front part of the spectacles and the position of the rear part of the spectacles in the vertical direction to change the forward inclination angle (for example, the forward inclination angle). An adjustment mechanism 5b) is provided. For example, the forward tilt angle is the tilt angle of the glasses when the wearer wears the glasses. For example, the forward tilt angle adjusting means tilts the glasses forward. Thereby, the inclination angle of the glasses when the wearer wears the glasses (that is, the forward inclination angle of the glasses) can be changed. For example, the deviation of the forward tilt angle greatly affects the lens characteristics, but the measurement result can be obtained with high accuracy by reproducing the wearing state.

  For example, the forward tilt angle adjusting means may change the forward tilt angle by moving at least one of the position of the front part of the glasses and the position of the rear part of the glasses in the vertical direction. For example, the forward tilt angle adjusting means includes the position of the spectacles bridge (for example, the bridge FB) as the position of the spectacle front portion and the position of the spectacles temple (for example, temple FTL, temple FTR) as the position of the spectacle rear portion. Move at least one of the positions vertically. Note that the forward tilt angle adjusting means moves up and down at least one of the positions of the bridge of the glasses as the position of the front part of the glasses and the position of the modern (for example, modern FML, modern FMR) of the glasses as the position of the rear part of the glasses. It may be configured to move in the direction. Thereby, the forward tilt angle of the glasses can be changed to the forward tilt angle in the wearing state in which the wearer wears the glasses.

  For example, with such a configuration, the forward tilt angle of the glasses can be changed with an easy configuration. Further, for example, with such a configuration, when the wearer wears spectacles, it is possible to reproduce the forward tilt angle of the spectacles that changes depending on the position of the ear of the wearer, the type of spectacles, and the like. Therefore, the operator can measure the lens characteristics at the forward tilt angle of the wearing state in which the wearer wears the glasses.

  For example, the forward tilt angle adjusting means may move the position of the temple in the vertical direction around the bridge of the glasses. For example, in the wearing state of spectacles, the bridge that is in contact with the wearer's nose is the center of rotation, and the position of the temple changes in the vertical direction depending on the height of the ear of the wearer. For this reason, the operator can easily adjust the forward tilt angle of the glasses to the forward tilt angle of the wearing state by adjusting the forward tilt angle with the bridge of the spectacles as the rotation center.

  Further, for example, the forward tilt angle adjusting means may include a forward tilt angle acquiring means. For example, the forward tilt angle acquisition means acquires the forward tilt angle information of the glasses when the wearer wears the glasses. For example, the forward tilt angle information may be the forward tilt angle of the glasses measured in advance using a spectacle wearing image analyzer or the like. For example, the forward tilt angle acquisition unit may include a receiving unit for receiving the forward tilt angle of such glasses, and may receive forward tilt information transmitted from a spectacle wearing image analyzer or the like. Further, for example, the forward tilt angle acquisition unit may acquire forward tilt angle information from the forward tilt angle of the glasses input by the operator.

  For example, the forward tilt angle adjusting unit changes the forward tilt angle based on the forward tilt angle information acquired by the forward tilt angle acquiring unit. Accordingly, the operator can easily adjust the forward tilt angle of the glasses to the forward tilt angle of the wearing state without performing a complicated operation.

<Temple adjustment means>
For example, the adjusting means is in contact with at least one of the left and right temples (for example, the left temple FTL and the right temple FTR) of the glasses, and moves the position of at least one of the left and right temples, thereby moving between the left and right temples. Temple adjusting means (for example, temple adjusting unit 100) is provided. For example, the temple adjusting means abuts at least one of the left and right moderns (for example, the left modern FML and the right modern FMR) of the glasses, and moves the left and right modern positions by moving at least one modern position. You may make it change the width | variety between temples.

  For example, the temple adjustment means may be configured to adjust the width between the left and right temples to a constant width. In this case, the fixed width may be the average head width of adults or the average head width of children. Of course, the width between the left and right temples may be fixed in advance at a constant width. Further, for example, the temple adjusting means may be configured such that the width between the left and right temples can be varied. In this case, the width between the left and right temples can be adjusted according to the head width of each wearer. For example, changing the width between the left and right temples includes a configuration in which the width is increased and a configuration in which the width is reduced. For example, with such a configuration, when the wearer wears spectacles, the shape of the spectacles deformed by widening the width between the temples can be reproduced. Therefore, the operator can measure the lens characteristics with the width between the temples in the wearing state in which the wearer wears the glasses.

  For example, the temple adjustment means may include a head width acquisition means. For example, the head width acquisition unit acquires head width information of a wearer wearing glasses. For example, the head width information may be the head width of the wearer measured in advance using a head width measuring device or the like. For example, the head width acquisition means may include a receiving unit for receiving the head width of such a wearer and receive head width information transmitted from a head width measuring device or the like. Further, for example, the head width acquisition means may be configured to acquire head width information from the head width of the wearer input by the operator.

  For example, the temple adjusting unit moves at least one of the left and right temples in the left-right direction based on the head width information acquired by the head width acquiring unit. Thus, the operator can easily adjust the width between the temples to the head width of the wearer.

<Example>
Hereinafter, the spectacle measuring apparatus in the present embodiment will be described. FIG. 1 is a view showing glasses F (or glasses frame F). For example, the glasses F include a bridge FB, a rim FR (left rim FRL and right rim FRR), temple FT (left temple FTL and right temple FTR), modern FM (left modern FML and right modern FMR), etc. A lens LE is framed on each rim. In the present embodiment, the front and rear, and the upper and lower sides of the spectacles F will be described with reference to a direction in which the wearer wears the spectacles F. That is, the front of the glasses F is the side where the rim FR is located, and the rear of the glasses F is the side where the modern FM is located. The upper side of the glasses F is the upper end side of the rim FR, and the lower side of the glasses F is the lower end side of the rim FR.

  FIG. 2 is a schematic configuration diagram of the spectacle measuring device 1. For example, the spectacle measurement device 1 includes a measurement unit 2, a spectacle support unit 3, a measurement unit 4, and a drive unit 5. For example, the measuring unit 2 is a nose that serves as a base point for measuring the lens characteristics (for example, spherical power S, columnar power C, astigmatic axis angle A, prism amount Δ, etc.) of the lens LE framed in the spectacles F. It has a piece 6. For example, the measurement part 2 is provided with the measurement optical system 10 mentioned later.

  For example, the glasses support unit 3 supports the glasses F. In this embodiment, the eyeglass support unit 3 supports the eyeglasses F with the lower side of the eyeglasses F (that is, the lower end side of the rim FR) facing upward. Of course, the eyeglass support unit 3 may support the eyeglasses F with the upper side of the eyeglasses F (that is, the upper end side of the rim FR) facing upward. For example, the measurement unit 4 measures the weight at at least two locations of the glasses F. For example, the drive unit 5 moves the spectacle support unit 3 relative to the measurement unit 2 in the front-rear direction (Z direction), the left-right direction (X direction), and the up-down direction (Y direction). For example, the drive unit 5 tilts the spectacles support unit 3 in an oblique direction (YZ direction) with respect to the measurement unit 2.

<Measurement optical system>
FIG. 3 is a diagram showing an optical system in the eyeglass measurement apparatus 1. For example, the optical axis L1 of the measurement optical system 10 is arranged perpendicular to the plane of the opening 7 (circular shape with a diameter of 8 mm) of the nosepiece 6. For example, the measurement optical system 10 includes a light source 11, a collimator lens 12, an index plate 13, a light receiving element 14, and the like. For example, the light source 11 may be configured by an LED (Light Emitting Diode). For example, the collimator lens 12 makes the measurement light emitted from the light source 11 parallel (including substantially parallel) to the optical axis L1. For example, the indicator plate 13 is held by the holding member 8 in the measurement unit 2. For example, the index plate 13 is formed with a measurement index for measuring the optical characteristics of the lens LE. For the configuration of the measurement index and the measurement of the optical characteristics of the lens LE using the measurement index, refer to Japanese Patent Application Laid-Open No. 2008-241694. For example, the light receiving element 14 may be configured by a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). For example, the measurement light emitted from the light source 11 diffuses in various directions, but is refracted parallel to the optical axis L1 via the collimator lens 12 and passes through the opening 7 of the nosepiece 6 and the indicator plate 13. Then, it reaches the light receiving element 14.

  FIGS. 4-8 is a schematic block diagram for demonstrating the spectacles support unit 3, the measurement unit 4, and the drive part 5. FIG. FIG. 4 is a perspective view of the eyeglass measuring device 1. FIG. 5 is a right side view of the eyeglass measurement device 1 (viewed from the direction of arrow A in FIG. 2). FIG. 6 is a left side view of the spectacle measuring device 1 (viewed from the direction of arrow B in FIG. 2). FIG. 7 is a front view of the spectacle measuring device 1 (a view seen from the direction of arrow C in FIG. 2). FIG. 8 is a rear view of the spectacle measuring device 1 (viewed from the direction of arrow D in FIG. 2). 4-8, illustration of the measurement part 2 is abbreviate | omitted for convenience. Hereinafter, the spectacle support unit 3, the measurement unit 4, and the drive unit 5 will be described in order.

<Glasses support unit>
For example, the eyeglass support unit 3 supports the eyeglasses F at at least two places. For example, the eyeglass support unit 3 includes a base 20, a front support portion 21, and a rear support portion 22. For example, the front support portion 21 is fixed to the base 20. For example, the base 20 is provided with a rear support portion 22 via a temple adjustment unit 100 described later. Note that the rear support portion 22 may be directly fixed to the base 20 without using the temple adjustment unit 100. For example, a plate 24 is attached to the lower surface of the base 20 and can be inclined forward or backward in an oblique direction (YZ direction) about the attachment shaft 27.

  For example, the front support part 21 supports the position of the front part of the glasses F. For example, the position of the front portion of the spectacles F is a position ahead of the center position of the state in which the wearer wears the spectacles F, such as the bridge FB and the rim FR of the spectacles F. For example, in the present embodiment, a case where the front support portion 21 supports the bridge FB of the glasses F is taken as an example. For example, the front support portion 21 has a U-shape that opens upward, and the bridge FB is placed with the upper side of the glasses F (that is, the upper end side of the rim FR) facing downward. Of course, the bridge FB may be placed on the front support portion 21 with the lower side of the glasses F (that is, the lower end side of the rim FR) facing downward.

  For example, the rear support unit 22 supports the position of the rear part of the glasses F. For example, the position of the rear part of the spectacles F is a position behind the center position in a state where the wearer wears the spectacles F such as a temple FT or a modern FM of the spectacles F. For example, in the present embodiment, a case where the rear support unit 22 supports the modern FM of the glasses F will be described as an example. For example, the rear support portion 22 has a U-shape that opens upward, and the modern FM is placed with the upper side of the glasses F (that is, the upper end side of the rim FR) facing downward. Of course, the modern FM may be placed on the rear support portion 22 with the lower side of the glasses F (that is, the lower end side of the rim FR) facing downward.

<Measurement unit>
For example, the measurement unit 4 measures the weights in at least two positions of the position of the front part of the glasses F and the position of the rear part of the glasses F. For example, the measurement unit 4 in the present embodiment measures the weight at the position of the bridge FB of the glasses F as the position of the front part of the glasses F, and the position of the modern FM of the glasses F as the position of the rear part of the glasses F. Measure the weight at. The position of the bridge FB may be any position of the bridge FB such as the center of the bridge FB or the end of the bridge FB. The position of the modern FM may be any position of the modern FM such as the center of the modern FM or the end of the modern FM.

  For example, the measurement unit 4 measures the weight of at least the left modern FML and the right modern FMR of the glasses F as the position of the modern FM of the glasses F described above. That is, the measurement unit 4 in the present embodiment measures the weight of the glasses F at three locations of the bridge FB, the left modern FML, and the right modern FMR in the glasses F. For example, the weight in the left modern FML may be at any position of the left modern FML such as the center of the left modern FML or the end of the left modern FML. Similarly, for example, the weight in the right modern FMR may be at any position of the right modern FMR, such as the center of the right modern FMR or the end of the right modern FMR. Note that the position at which the weight is measured in the modern FM of the glasses F may be different in each of the left modern FML and the right modern FMR, but in a symmetrical position in each of the left modern FML and the right modern FMR. Preferably there is.

  For example, the measurement unit 4 in this embodiment includes a measurement sensor 4a, a measurement sensor 4b, and a measurement sensor 4c that can measure weight. For example, the measurement sensor 4 a is disposed at the position of the front support portion 21 in the spectacle support unit 3. Thereby, the measurement sensor 4a can measure the weight of the spectacles F at the position of the bridge FB. Further, for example, the measurement sensor 4 b and the measurement sensor 4 c are disposed at the position of the rear support portion 22 in the spectacles support unit 3. Thereby, the measurement sensor 4b and the measurement sensor 4c can measure the weight of the glasses F at the position of the modern FM. In this embodiment, the measurement sensor 4b measures the weight of the glasses F at the position of the left modern FML, and the measurement sensor 4c measures the weight of the glasses F at the position of the right modern FMR. That is, for example, these measurement sensors are arranged at the position of the glasses support unit 3 and can measure the weight of the glasses F at a position where the glasses support unit 3 supports the glasses F.

  For example, a pressure sensor can be used as a measurement sensor capable of measuring weight (that is, the measurement sensor 4a, the measurement sensor 4b, and the measurement sensor 4c). For example, when a pressure sensor detects pressure from the outside, the pressure sensor converts an electric resistance value changed thereby into a voltage value. For example, the weight of the glasses F is obtained from the voltage value detected by the pressure sensor. In this case, an arithmetic expression, a conversion table (table), and the like may be stored in the memory 75 described later in order to convert the voltage value into weight. For example, these arithmetic expressions and conversion tables may be set in advance through experiments, simulations, or the like. In the above description, the pressure sensor is taken as an example of a measurement sensor capable of measuring the weight. However, the weight of the glasses F may be directly acquired using a weight sensor or the like.

<Driver>
For example, the driving unit 5 moves the spectacle support unit 3 with respect to the measurement unit 2 in the front-rear direction (Z direction), the left-right direction (X direction), and the up-down direction (Y direction), and the spectacles. A forward tilt angle adjusting mechanism 5b for tilting the support unit 3 in an oblique direction (YZ direction). Hereinafter, the XYZ moving mechanism 5a and the forward tilt angle adjusting mechanism 5b will be described in order.

<XYZ moving mechanism>
For example, the nut part 58 is fixed to the lower part of the measuring part 2, and the feed screw 45 extending in the X direction is screwed into the nut part 58. For example, both ends of the feed screw 45 are connected to the base 30 via bearings. Further, for example, a ball bush 59 is fixed to the lower part of the measurement unit 2, and a shaft 46 extending in the X direction passes through the ball bush. For example, both ends of the shaft 46 are connected to the base 30. For example, a motor 49 is attached to the lower surface of the base 30. For example, the drive shaft of the motor 49 is screwed with the feed screw 45.

  For example, when the motor 49 is driven, the feed screw 45 rotates. For example, since the measurement unit 2 is fixedly arranged, when the feed screw 45 is fed by the nut portion 58, the base 30 moves in the left-right direction (X direction) together with the feed screw 45. For example, at this time, the shaft 46 slides in the ball bush 59. For example, the eyeglass support unit 3 can be moved in the left-right direction with respect to the measurement unit 2 by moving the base 30 in this way.

  For example, a bearing support member is fixed to the upper surface of the base 30. For example, the bearing support member includes a bearing support member 41 f positioned in front of the upper surface of the base 30 and a bearing support member 41 b positioned in the rear of the upper surface of the base 30. For example, the bearing support member 41 f is provided with a bearing 43, and one end of the feed screw 35 extending in the Z direction is connected to the bearing 43. For example, the bearing support member 41b is also provided with a bearing through which the feed screw 35 penetrates. For example, the other end of the feed screw 35 is connected to the drive shaft of the motor 28. For example, the motor 28 is fixed to the bearing support member 41b.

  For example, a ball bush support member 42 is fixed to the upper surface of the base 30. For example, the ball bush support member 42 is provided with a ball bush, and a shaft 36 extending in the Z direction passes through the ball bush.

  For example, a nut support member 37 and a shaft support member 38 are fixed to the lower surface of the base 40. For example, the nut support member 37 is provided with a nut portion, and this nut portion is screwed with the feed screw 35. For example, the shaft support member 38 is provided with a ball bush, and the shaft 36 penetrates the ball bush.

  For example, when the motor 28 is driven, the feed screw 35 rotates. Thereby, the nut portion of the nut support member 37 is sent to the feed screw 35, and the nut support member 37 and the base 40 to which the nut support member 37 is fixed move in the front-rear direction (Z direction). For example, at this time, the shaft support member 38 fixed to the base 40 slides on the shaft 36 as the base 40 moves. For example, even if the feed screw 35 is rotated by the motor 28, the drive of the motor 28 is not transmitted to the base 30 by the bearing 43, and the base 30 does not move in the front-rear direction (Z direction). For example, the spectacles support unit 3 can be moved in the front-rear direction with respect to the measurement unit 2 by moving the base 40 in this way.

  For example, the base 25 has a nut portion, and a feed screw 80 extending in the Y direction is screwed into the nut portion. Further, for example, the base 25 has a ball bush, and each of the shaft 83 and the shaft 84 extending in the Y direction penetrates the ball bush. For example, one end of the feed screw 80 is connected to the base 40 via a bearing provided on the base 40. For example, the other end of the feed screw 80 is connected to the mounting plate 90 via a bearing provided on the mounting plate 90. For example, one end of the shaft 83 is connected to the base 40 via a ball bush provided on the base 40. For example, the other end of the shaft 83 is connected to the mounting plate 91 via a ball bush provided on the mounting plate 91. Similarly, for example, one end of the shaft 84 is connected to the base 40 via a ball bush provided on the base 40. For example, the other end of the shaft 84 is connected to the mounting plate 92 via a ball bush provided on the mounting plate 92. For example, the motor 95 is fixed to the mounting plate 90. For example, the drive shaft of the motor 95 is screwed with the feed screw 80.

  For example, when the motor 95 is driven, the feed screw 80 rotates. As a result, the nut portion of the base 25 is sent to the feed screw 80, so that the base 25 moves in the vertical direction (Y direction). For example, at this time, as the base 25 moves, the ball bushes of the base 25 slide on the shaft 83 and the shaft 84, respectively. For example, even if the feed screw 80 is rotated by the motor 95, the drive of the motor 95 is not transmitted to the base 40 by the bearing, and the base 40 and the base 30 do not move in the vertical direction (Y direction). For example, the spectacles support unit 3 can be moved in the vertical direction with respect to the measurement unit 2 by moving the base 25 in this way.

<Forward tilt adjustment mechanism>
For example, the forward tilt angle adjustment mechanism 5b changes the tilt angle of the glasses F by moving at least one of the position of the front part of the glasses F and the position of the rear part of the glasses F in the vertical direction. For example, the forward tilt adjustment mechanism 5b in the present embodiment includes at least one of the position of the bridge FB of the glasses F as the position of the front part of the glasses F and the position of the temple FT of the glasses F as the position of the rear part of the glasses F. The position is moved in the vertical direction, and the inclination angle of the glasses F is changed. Note that the position of the temple FT of the glasses F includes the positions of the temple FT and the modern FM.

  For example, as a configuration in which the tilt angle of the glasses F is changed by the front tilt angle adjusting mechanism 5b, the position of the temple FT may be moved in the vertical direction around the bridge FB of the glasses F. Alternatively, at least one position of the bridge FB or the temple FT of the glasses F may be moved in the vertical direction. In the present embodiment, a configuration in which the tilt angle of the glasses F is changed by using the forward tilt angle adjusting mechanism 5b with the bridge FB of the glasses F as the rotation center will be described as an example.

  For example, the forward tilt adjustment mechanism 5b includes a plate 24, a plate 26, a mounting shaft 27, a motor 32, and the like. For example, the plate 24 is attached to the lower surface of the base 20, and the plate 26 is attached to the upper surface of the base 25. For example, the mounting shaft 27 passes through the plate 24 and the bearing of the plate 26. For example, a motor 32 is attached to one end of the attachment shaft 27. For example, the motor 32 is fixed on the base 25. For example, the mounting shaft 27 and the plate 24 are fixed by screws not shown. For this reason, for example, when the motor 32 is driven, the mounting shaft 27 rotates and the plate 24 tilts around the mounting shaft 27. For example, the base 20 included in the support unit 3 can be inclined in the oblique direction (YZ direction) in this way. In the present embodiment, the plate 24 attached to the base 20 and the plate 26 attached to the base 25 are located directly below the front support portion 21. For this reason, in the state where the spectacles F are placed on the spectacles support unit 3, it can be considered that the base 20 tilts in an oblique direction with the bridge FB of the spectacles F as the rotation center.

  For example, when the driving direction of the motor 32 is switched, the inclination direction of the base 20 is changed. For example, when the motor 32 rotates clockwise, the base 20 is inclined upward (in other words, the direction in which the front support portion 21 is higher than the rear support portion 22) with the mounting shaft 27 as the center. Further, for example, when the motor 32 rotates counterclockwise, the base 20 is inclined downward (in other words, the direction in which the front support portion 21 is lower than the rear support portion 22) around the mounting shaft 27. The inclination direction of the base 20 with respect to the driving direction of the motor 32 may be different from that of the present embodiment. For example, when the base 20 is tilted in this manner, the tilt angle of the glasses F can be changed with the tilt of the base 20 in a state where the spectacles support unit 3 supports the glasses F.

  For example, the spectacle measuring device 1 in the present embodiment may include a configuration for acquiring forward tilt information when the wearer wears the spectacles F. For example, in this case, the operator uses an operation button 71 provided on the spectacle measuring device 1 in advance using another device (for example, the spectacle wearing image analysis device described in JP-A-2015-179254). It may be configured to input the forward tilt angle of the spectacles F that has been measured. Further, for example, in this case, the spectacle measuring device 1 may receive the forward tilt angle of the spectacles F acquired by another device. For example, the forward tilt angle adjustment mechanism 5b changes the forward tilt angle of the glasses F based on the forward tilt angle information acquired in this way. More specifically, for example, the control unit 60 to be described later controls the drive amount of the motor 32 based on the forward tilt angle information, thereby changing the angle at which the base 20 is tilted and automatically changing the forward tilt angle of the glasses F. Adjust to.

<Temple adjustment unit>
For example, the eyeglass measuring device 1 in the present embodiment may include a temple adjustment unit 100 for changing the width between the temples FT in the eyeglasses F. For example, the temple adjustment unit 100 abuts at least one of the left temple FTL and the right temple FTR in the eyeglasses F, and moves the position of at least one of the left and right temples, thereby increasing the width W between the left and right temples. change. For example, in this embodiment, the temple adjustment unit 100 is in contact with both the left temple FTL and the right temple FTR, and changes the width between the left and right temples by moving the positions of both the left and right temples. Take an example.

  For example, the temple adjustment unit 100 includes a contact portion, a guide portion 50, a feed screw portion 51a, a feed screw portion 51b, a feed screw shaft 53a, a feed screw shaft 53b, a double-axis motor 54, and the like. For example, the contact portion contacts at least a part of the position of the rear portion of the glasses F. In the present embodiment, the rear support portion 22 included in the eyeglass support unit 3 also serves as a contact portion in the temple adjustment unit 100. For example, the guide part 50 is provided in the base 20, and hold | maintains the back support part 22 so that sliding is possible. For example, one end of each of the feed screw portion 51a and the feed screw portion 51b is screwed into the rear support portion 22 via a nut portion included in the rear support portion 22. For example, a feed screw shaft 53a is fixed to the other end of the feed screw portion 51a. For example, the feed screw shaft 53b is fixed to the other end of the feed screw portion 51b. For example, the feed screw portion 51a is processed into a right screw, and the feed screw portion 51b is processed into a left screw. For example, a feed screw shaft 53a and a feed screw shaft 53b are connected to the double-axis motor 54.

  For example, when the double-axis motor 54 is driven, the feed screw shaft 53a and the feed screw shaft 53b rotate, and the feed screw portion 51a and the feed screw portion 51b also rotate accordingly. For this reason, for example, the nut portion of the rear support portion 22 is sent to each feed screw portion, and the rear support portion 22 slides in the left-right direction (X direction) along the guide portion 50. Since the screw screw 51a and the lead screw 51b have different screw rotation directions, the direction in which the two-axis motor 54 rotates is changed so that the rear support 22 approaches or moves away from each other. Moving. For example, in this embodiment, when the double shaft motor 54 rotates clockwise, the rear support portions 22 move away from each other. Further, for example, when the double shaft motor 54 rotates counterclockwise, the rear support portions 22 approach each other. Of course, the moving direction of the rear support portion 22 relative to the rotational direction of the double-axis motor 54 may be different from that of the present embodiment. Accordingly, the width W (see FIGS. 7 and 8) between the rear support portions 22 included in the spectacles support unit 3 is changed. That is, in the state in which the eyeglass support unit 3 supports the eyeglasses F, the width between the temples FT in the eyeglasses F can be changed with the change in the width W between the rear support portions 22. For example, when the wearer wears spectacles, the shape of the spectacles is deformed, but the deformed state can be reproduced by changing the width between the left and right temples.

  Note that, for example, the eyeglass measurement device 1 in the present embodiment may include a configuration for acquiring head width information of a wearer wearing the eyeglasses F. For example, in this case, the head width of the wearer measured in advance using another device (for example, a head width measuring device) from the operation button 71 provided on the spectacle measuring device 1 by the operator. An input configuration may be used. Further, for example, in this case, the spectacle measuring device 1 may receive the wearer's head width acquired by another device. For example, based on the head width information acquired in this way, the temple adjustment unit 100 moves at least one of the left and right contact portions (the rear support portion 22 in this embodiment) in the left-right direction. Move to. More specifically, for example, the control unit 60 described later controls the drive amount of the both-axis motor 54 based on the head width information, so that the rear support unit 22 moves in the left-right direction, and the width between the rear support units 22 is increased. W is automatically adjusted.

  For example, when the spectacles measuring apparatus 1 has a configuration for acquiring the head width information of the wearer, the rear support unit 22 detects the gripping force with which the spectacles F grip the head of the wearer. A sensor 65 may be provided. For example, a pressure sensor can be used as such a sensor. For example, in this case, the control unit 60 described later obtains a gripping force with which the glasses F grip the wearer's head from a voltage value detected by the pressure sensor. For example, an arithmetic expression, a conversion table (table), and the like for converting a voltage value into a gripping force may be stored in advance in a memory 75 to be described later by an experiment, a simulation, or the like. For example, this makes it possible to refer to the gripping force applied to the head while the spectacle F is worn by the wearer when prescribing the spectacle F suitable for the wearer.

<Control unit>
FIG. 9 is a diagram showing a control system in the eyeglass measurement device 1. For example, the control unit 60 includes an operation button 71, a display 72, a light source 11, a light receiving element 14, a motor provided in the drive unit 5 (for example, a double-axis motor 54, a motor 49, a motor 28, a motor 32, a motor 95, etc.) Etc. are connected. In addition, for example, the controller 60 is connected to a motor, a drive mechanism, and the like (not shown) that the spectacle frame shape measurement unit 7 and the cup attachment mechanism 8 have.

  For example, the control unit 60 includes a CPU (processor), a RAM, a ROM, and the like. For example, the CPU controls driving of each member in the eyeglass measurement device 1. Further, for example, the CPU performs various arithmetic processes (for example, the position of the center of gravity of the glasses F, the gripping force of the glasses F, etc.). For example, the RAM temporarily stores various information. For example, the ROM stores a program executed by the CPU. The control unit 60 may be configured by a plurality of control units (that is, a plurality of processors).

  For example, the memory 75 is a non-transitory storage medium that can retain stored contents even when power supply is interrupted. For example, as the memory 75, a hard disk drive, a flash ROM, a USB memory that is detachably attached to the spectacle measuring device 1, and the like can be used. For example, the memory 75 stores an arithmetic expression or a conversion table for converting a voltage value into a weight.

<Control action>
The control operation of the eyeglass measurement apparatus 1 having the above configuration will be described. For example, the eyeglass measurement device 1 includes a center-of-gravity acquisition mode for acquiring the center-of-gravity position of the eyeglasses F and a lens measurement mode for measuring the lens characteristics of the eyeglasses F in which the wearing state is reproduced. The center-of-gravity acquisition mode and the lens measurement mode may be configured to be automatically switched and set continuously, or may be configured to be manually set separately.

<Center of gravity acquisition mode>
Hereinafter, the center-of-gravity acquisition mode will be described in detail. First, the operator places the glasses F on the front support portion 21 and the rear support portion 22 of the glasses support unit 3. For example, the measurement sensor 4 a provided in the front support portion 21 measures the weight of the glasses F at the bridge FB by detecting a change in pressure applied to the glasses support unit 3. Further, for example, the measurement sensor 4b and the measurement sensor 4c provided in the rear support part 22 detect the change in pressure applied to the spectacle support unit 3, and thereby the weight of each of the left modern FML and the right modern FMR of the spectacles F. Measure. For example, the weight of each part of the glasses F is stored in the memory 75 of the control unit 60.

  For example, the control unit 60 acquires the center-of-gravity position G of the glasses F based on the weights of the bridge FB, the left modern FML, and the right modern FMR of the glasses F. FIG. 10 is a diagram for explaining the gravity center position G of the glasses F. FIG. FIG. 10A shows a side view of the glasses F. FIG. FIG. 10B shows a front view of the glasses F. FIG. 10C shows a perspective view of the glasses F. For example, when acquiring the center of gravity position of the glasses F, the distance D1 from the front surface of the rim FR to the front end of the modern FM and the distance D2 from the left end of the left rim FRL to the right end of the right rim FRR are respectively I need it. For this reason, the operator may input the distance D1 and the distance D2 using the operation button 71 displayed on the display 72. For example, the distance D1 and the distance D2 may be determined based on a number indicating the size of the glasses written inside the temple of the glasses F, or may be measured using a ruler or the like.

  For example, the center-of-gravity position G of the spectacles F is 2 between a position where the balance can be achieved in the depth direction of the spectacles F (the Z direction in FIG. 10) and a position where balance can be achieved in the left-right direction of the spectacles F (the X direction in FIG. 10). It can be obtained from the balance position in one direction. For example, the balance position Mz in the depth direction of the glasses F can be calculated by the following formula.

  In the above mathematical formula, F1 is the weight of the glasses F in the bridge FB. F2 is the weight of the glasses F in the left modern FML. F3 is the weight of the glasses F in the right modern FMR. d1 is the distance from the right rim FRR of the glasses F to the balance position Mz. The distance d1 may be a distance from the left rim FRL of the glasses F to the balance position Mz.

  For example, the control unit 60 can detect the balance position in the depth direction by calculating the above mathematical formula. That is, with respect to the depth direction of the glasses F, a force for rotating the glasses F in the direction of the rim FR (the direction of the arrow a in FIG. 10A) and the direction of the glasses F in the modern FM (FIG. 10A The position where the force to rotate in the direction of arrow b) is equal is detected as the balance position Mz in the depth direction. For example, this allows the control unit 60 to obtain the position in the Z direction at the center of gravity G of the glasses F. That is, the center-of-gravity position G of the glasses F has a Z coordinate Mz.

  For example, the balance position Mx in the left-right direction of the glasses F can be calculated by the following mathematical formula.

  In the above formula, d2 is the distance from the left end of the left rim FRL of the glasses F to the balance position Mx.

  For example, the control unit 60 can detect the balance position in the left-right direction by calculating the above mathematical formula. That is, the force to rotate the glasses F in the direction of the left rim FRL (the direction of the arrow c in FIG. 10B) with respect to the left-right direction of the glasses F, and the direction of the glasses F in the right rim FRR (FIG. 10). The position where the force to rotate in the direction of arrow d in (b) is equal is detected as the balance position Mx in the left-right direction. For example, the control unit 60 can thereby obtain the position coordinates in the X direction at the center of gravity G of the glasses F. That is, the center of gravity G of the glasses F has an X coordinate Mx.

  For example, the control unit 60 obtains the gravity center position G of the glasses F from the balance position Mx and the balance position Mz acquired as described above. For example, the position coordinate in the X direction of the gravity center position G is the position of the balance position Mx, and the position coordinate in the Z direction of the gravity center position G is the position of the balance position Mz. For this reason, the position coordinates of the gravity center position G of the glasses F can be expressed as (Mx, Mz). That is, in FIG. 10C, a point where the balance position Mz in the depth direction of the glasses F matches the balance position Mx in the left-right direction is detected as the gravity center position G of the glasses F.

  For example, the control unit 60 may display the center of gravity G of the glasses F on the display 72 after acquiring the center of gravity G of the glasses F. In this case, the numerical values of the distance d1 and the distance d2 obtained by the above formula may be displayed. For example, the control unit 60 may display balance information of the glasses F obtained from the gravity center position G of the glasses F on the display 72. For example, as the balance information, information for indicating the balance position of the glasses F is displayed.

  FIG. 11 is a diagram illustrating an example of balance information. For example, the balance information includes an illustration 120 imitating the glasses F, a mark 121 indicating the balance position of the glasses F, a mark 122 indicating the average balance position of the glasses, and the like. Of course, the center of gravity G of the glasses F may be displayed on the display 72 as balance information. For example, the average balance position of the glasses may be set in advance from experiments, simulations, or the like for each type of glasses F (for example, a metal frame or a cell frame). For example, the mark 122 is displayed at an average position according to the type of selected glasses. In addition, although the mark 122 in a present Example shall show the average balance position of spectacles, it is not limited to this. For example, the mark 122 may indicate an ideal balance position of the glasses.

  For example, when displaying balance information in this way, the control unit 60 may indicate, as a numerical value, how much the average balance position is deviated from the balance position of the glasses F. For example, when displaying balance information in this way, the control unit 60 determines whether or not to move the balance position of the glasses F from the amount of deviation between the balance position of the glasses F and the average balance position. You may judge. For example, the predetermined range 123 based on the average balance position may be set as an allowable range for determining the suitability of the balance position. For example, when it is determined that the balance position needs to be moved, a text for prompting the user to move the balance position of the glasses F may be displayed on the display 72.

  For example, the operator can prescribe glasses having a good wearing feeling to the wearer by acquiring the balance information. For example, when there is an opinion from the wearer that the glasses are likely to slip off the nose, the operator obtains balance information for the glasses currently worn by the wearer as described above. For example, when the wearer's current wearing feeling with respect to the glasses is improved, the operator may determine the weight of the weight to be added to the glasses based on the balance information. Note that the weight of the weight added to the glasses may be calculated by the control unit 60 so that the current balance position of the glasses matches the average balance position (or ideal balance position). Good. Next, the operator adds a weight to the wearer's current glasses and obtains balance information again. For example, the operator can match the balance position of the current glasses with the average balance position by repeating such an operation, and can improve the wearing feeling of the glasses. Of course, depending on the wearing feeling of the wearer, the current balance position of the glasses and the average balance position may not necessarily match.

  Further, for example, when the wearing feeling of the spectacles scheduled to be worn by the wearer is improved, the operator similarly acquires balance information for the spectacles scheduled to be worn. For example, the operator compares the balance information between the current spectacles of the wearer and the spectacles planned to be worn, and the balance position of the spectacles planned to be worn is behind the balance position of the current spectacles (ie, spectacles). The use of glasses on the modern FM side) may be suggested. Accordingly, the operator can prescribe glasses to the wearer in consideration of the wearing feeling of glasses.

  As described above, for example, the eyeglass measurement device according to the present embodiment measures the weights of at least two places of the eyeglasses, and acquires the center of gravity position of the eyeglasses based on the measured weights. This allows the operator to adjust the position of the center of gravity of the glasses that the wearer has, or to prescribe glasses with a center of gravity suitable for the wearer, and easily determine the fitting state of the glasses for the wearer. can do.

  In addition, for example, the spectacle measuring device according to the present embodiment measures the weight at at least two positions of the position of the front part of the spectacles and the position of the rear part of the spectacles. As a result, the center of gravity of the spectacles can be obtained by obtaining the weight of the front part of the spectacles affected by the thickness and weight of the framed lens and the weight of the rear part of the spectacles. It becomes easy to adjust the balance.

  In addition, for example, the spectacle measuring device according to the present embodiment measures the weight of each of the modern on the left side of the spectacles and the modern on the right side of the spectacles as the modern position of the spectacles. As a result, the modern weight on the right side and the modern weight on the left side of the spectacles as well as the weight at the position of the bridge of the spectacles can be obtained, and the center of gravity of the entire spectacles can be obtained more accurately using the weights of the three points. it can.

  Further, for example, in the eyeglass measurement device according to the present embodiment, the measurement means for measuring the weight of the eyeglasses is arranged at the position of the support means for supporting the eyeglasses. For this reason, the operator can acquire the weight of the glasses at the position where the glasses are supported with a simple configuration.

  Further, for example, in the present embodiment, the acquisition unit may acquire balance information indicating the balance position of the glasses based on the center of gravity position of the glasses. Further, for example, the spectacle measuring device may include an output unit that outputs balance information. As a result, the operator can easily determine the center of gravity position, balance, etc. of the glasses.

<Lens measurement mode>
Hereinafter, the lens measurement mode will be described in detail. FIG. 12 is a diagram illustrating a wearing state in which the wearer wears the glasses F. 12A is a view of the wearer as viewed from the front, and FIG. 12B is a view of the wearer as viewed from the side. For example, the distance from the wearer's pupil position P to the lower part of the rim FR (that is, the PD height h of the eye), the distance from the wearer's left eye's pupil position to the right eye's pupil position (that is, the interpupillary distance) PD), the distance from the wearer's corneal apex position K to the lens back surface (ie, the corneal apex distance VD), the angle at which the rim FR is inclined with respect to the Y direction (ie, the forward inclination angle θ), etc. There are different depending on the wearer. Of course, since the glasses F have various shapes, the eye PD height h, the corneal apex distance VD, the anteversion angle θ, and the like may vary depending on the glasses F. For this reason, for example, the spectacles are manufactured by obtaining a result that it is desirable to prescribe a lens having a spherical power S of −10D for a wearer by obtaining a prescription value by an objective test or a subjective test. However, the above-described distance and tilt angle may change, and in some cases, a -10D lens may not actually be seen in front of the eyes.

  The above will be described by taking a change in the corneal vertex distance VD as an example. FIG. 13 is a diagram showing the relationship between the corneal apex distance VD and the refractive power. FIG. 13A shows an example of a minus lens, and FIG. 13B shows an example of a plus lens. For example, in a state in which the minus lens ML is disposed in front of the eye, the focal position of the parallel luminous flux incident on the eye increases as the corneal apex distance VD increases (that is, moves from the solid minus lens ML to the dotted minus lens ML side). f comes to be located behind the retina. For this reason, when the wearer looks forward through the minus lens ML, the actual vision correction becomes small. That is, for example, even when wearing glasses F with a -10D lens framed, if the corneal apex distance VD is shifted, the wearer is a lens that is weaker than -10D (for example, a lens of -9.5D). It will be the same as looking forward through.

  On the contrary, in the state where the plus lens PL is disposed in front of the eye, the focal point of the parallel light flux incident on the eye increases as the corneal apex distance VD becomes longer (that is, as the plus lens PL moves toward the dotted plus lens PL side). The position f comes to be in front of the retina. For this reason, when the wearer looks forward through the plus lens PL, actual vision correction becomes excessive. That is, for example, even when wearing spectacles F with a + 10D lens framed, if the corneal apex distance VD shifts, the wearer moves forward through a lens stronger than + 10D (for example, a + 10.5D lens). It will be the same as you are watching.

  For example, when the corneal apex distance VD changes, the actual refractive power changes as described above. For this reason, in order to prescribe the spectacles F with good appearance, the wearer wearing the spectacles F can acquire the refractive power when looking forward through the lens LE framed in the spectacles F. desirable.

  For example, the eyeglass measurement device 1 according to the present embodiment can measure the refractive power in the wearing state by setting the lens measurement mode. For example, in this case, when the wearer wears spectacles F and looks in front, the left eye's visual axis passes through the left eye lens LE, and the right eye's visual axis is for the right eye. The refractive power at each of the points passing through the lens LE is measured. For example, at this time, the control unit 60 places the nosepiece 6 on the basis of the wearer's corneal apex distance VD without bringing the nosepiece 6 into contact with the rear surface of the glasses F. Of course, the spectacle measuring device 1 can measure the optical characteristics of the lens LE framed in the spectacles F by bringing the nosepiece 6 into contact with the back surface of the lens LE.

  For example, the operator places the glasses F on the front support part 21 and the rear support part 22 of the eyeglass support unit 3. For example, at this time, the front support portion 21 and the measurement portion 2 are set in advance so that the left-right direction (X direction) is the same position.

  Next, the operator uses the operation buttons 71 displayed on the display 72 to input the spectacle wearing parameters when the wearer wears the spectacles F. For example, the spectacle wearing parameters are interpupillary distance PD, eye PD height h, corneal apex distance VD, anteversion angle θ, and the like. For example, as the inter-pupil distance PD, a distance LPD from the center of the bridge FB to the left eye pupil position in the eyeglasses F and a distance RPD from the center of the bridge FB to the right eye pupil position in the eyeglasses F are input. You may make it do. For example, these spectacle wearing parameters can be acquired in advance using a spectacle wearing image analysis apparatus (see, for example, JP-A-2015-179254).

  For example, when a spectacle wearing parameter is input, the control unit 60 moves the spectacle support unit 3 relative to the measurement unit 2. For example, the control unit 60 drives the motor 50 of the eyeglass support unit 3 based on the inter-pupil distance PD, and moves the eyeglass support unit 3 in the left-right direction (X direction). For example, in the present embodiment, the control unit 60 moves the glasses support unit 3 to the right by the distance LPD. Thereby, the position in the left-right direction of the point where the visual axis of the left eye of the wearer passes through the lens LE for the left eye and the optical axis L1 of the measurement optical system 10 can be matched.

  For example, the control unit 60 drives the motor 95 of the glasses support unit 3 based on the PD height h of the eye, and moves the glasses support unit 3 in the vertical direction (Y direction). For example, in this embodiment, the spectacle support unit 3 is first moved downward so that the light receiving element 14 captures an image including the lower part of the rim FR of the spectacles F. For example, the control unit 60 detects the position of the lower end of the rim FR in the glasses F by performing image processing (for example, edge detection) on the captured image. Thereafter, the controller 60 moves the eyeglass support unit 3 upward from the detected position of the lower part of the rim FR by the PD height h of the eye. Thereby, the point in the vertical direction of the point where the visual axis of the left eye of the wearer passes through the lens LE for the left eye and the optical axis L1 of the measurement optical system 10 can be matched.

  For example, the control unit 60 drives the motor 28 of the spectacles support unit 3 based on the corneal apex distance VD to move the spectacles support unit 3 in the front-rear direction (Z direction). For example, the depth direction of the spectacles support unit 3 is set as the initial position at a position corresponding to 12 mm (that is, the corneal vertex distance when the prescription value is obtained), which is generally an ideal corneal vertex distance in Japan. Has been. For example, the movement amount of the nosepiece 6 is set according to the deviation amount between the wearer's corneal apex distance VD and the initial position. For example, when the wearer's corneal apex distance VD is 13 mm, the control unit 60 optically moves the nosepiece 6 by a distance (movement amount) corresponding to 1 mm that is a deviation amount from the initial position. Note that, for example, such an optical movement amount may be set in advance through experiments, simulations, or the like. For example, the distance from the point where the visual axis of the left eye of the wearer passes through the lens LE for the left eye to the nosepiece 6 can be made coincident with the corneal apex distance VD of the wearer.

  For example, when the spectacle wearing parameters are input, the control unit 60 tilts the spectacle support unit 3 with respect to the measurement unit 2. For example, the controller 60 drives the motor 32 of the glasses support unit 3 based on the tilt angle θ, and tilts the glasses support unit 3 in an oblique direction (YZ direction) with the bridge FB of the glasses F as the rotation center. Thus, the forward tilt angle of the glasses F placed on the spectacle support unit 4 and the forward tilt angle θ of the glasses F in the wearing state in which the wearer wears the glasses F are adjusted to be the same (or substantially the same). be able to.

  For example, the operator may input the head width information of the wearer using the operation button 71 displayed on the display 72. For example, when the head width information is input, the control unit 60 changes the width W between the rear support units 22. For example, the control unit 60 drives the double shaft motor 54 of the temple adjustment unit based on the head width of the wearer, and makes the width W between the rear support portions 22 coincide with the head width of the wearer. For example, at this time, the control unit 60 may acquire a gripping force with which the glasses F grip the wearer's head using a detection sensor attached to the rear support unit 22. For example, the detected gripping force is displayed on the display 72.

  For example, the control unit 60 adjusts the forward tilt angle θ of the glasses F and the deformation of the glasses F caused by the glasses F holding the head of the wearer as described above, so that the glasses F are adjusted to the wearer. Reproduce the worn state. In addition, although the structure which adjusts both the forward inclination angle and deformation | transformation of the spectacles F was mentioned as an example above, the structure which adjusts at least any one of these may be sufficient.

  For example, when the control unit 60 finishes moving the measurement unit 2 (measurement optical system 10) and changing the forward tilt angle θ and the width W between the rear support units 22, the control unit 60 turns on the light source 11 and wears it. The lens characteristics (for example, the spherical power S, the column surface power C, the astigmatic axis angle A, the prism amount Δ, etc.) of the spectacles F in a state in which is reproduced are measured. For example, the lens characteristic measured as described above is the refractive power in the wearing state when the wearer wearing the spectacles F looks forward through the lens LE. For example, the control unit 60 displays the measured lens characteristics on the display 72 and stores them in the memory 75.

  For example, when the wearer finishes measuring the refractive power of the left eye when the wearer wears the glasses F, the control unit 60 also measures the refractive power of the right eye. In this case, for example, after measuring the refractive power of the left eye, the control unit 60 moves the eyeglass support unit 3 to the left by the inter-pupil distance PD (that is, the sum of the distance LPD and the distance RPD). Similarly to the measurement of the refractive power of the left eye, the control unit 60 moves the measurement optical system 10 based on the PD height h of the eye, the corneal apex distance VD, and the anteversion angle θ, so that the wearer can wear glasses. The refractive power of the right eye in the wearing state wearing F is acquired.

  As described above, for example, the spectacle measuring device in the present embodiment adjusts at least one of the deformation of the spectacles and the forward tilt angle of the spectacles. Thus, the operator can measure the lens characteristics of the spectacles by reproducing the wearing state in which the wearer wears the spectacles. Therefore, it is possible to obtain a more accurate measurement result close to the wearing state.

  In addition, for example, the eyeglass measurement device according to the present embodiment moves at least one of the position of the front part of the eyeglasses and the position of the rear part of the eyeglasses in the vertical direction. Thereby, the forward tilt angle of the glasses can be changed to the forward tilt angle in the wearing state in which the wearer wears the glasses. For example, the deviation of the forward tilt angle greatly affects the lens characteristics, but the measurement result can be obtained with high accuracy by reproducing the wearing state.

  Further, for example, the spectacle measuring device in the present embodiment changes the forward tilt angle of the spectacles by tilting the spectacles forward. Thus, when the wearer wears spectacles, it is possible to reproduce the forward tilt angle of the spectacles that changes depending on the position of the wearer's ear, the type of spectacles, and the like. Therefore, the operator can measure the lens characteristics at the forward tilt angle of the wearing state in which the wearer wears the glasses.

  In addition, for example, the eyeglass measurement apparatus according to the present embodiment moves at least one of the position of the eyeglass bridge and the position of the temple in the vertical direction. Thus, the forward tilt angle of the glasses can be changed with an easy configuration.

  Further, for example, the spectacle measuring device in the present embodiment can change the forward tilt angle of the spectacles with the spectacles bridge as the center of rotation. For example, in the wearing state of spectacles, the bridge that is in contact with the wearer's nose is the center of rotation, and the position of the temple changes in the vertical direction depending on the height of the ear of the wearer. For this reason, the operator can easily adjust the forward tilt angle of the glasses to the forward tilt angle of the wearing state.

  In addition, for example, the eyeglass measurement device according to the present embodiment automatically changes the forward tilt angle of the glasses based on the forward tilt angle information of the glasses. Accordingly, the operator can easily adjust the forward tilt angle of the glasses to the forward tilt angle of the wearing state without performing a complicated operation.

  Further, for example, the eyeglass measurement device according to the present embodiment changes the width between the left and right temples by moving the position of at least one of the left and right temples. Thereby, when the wearer wears spectacles, the shape of the spectacles deformed by widening the width between the temples can be reproduced. Therefore, the operator can measure the lens characteristics with the width between the temples in the wearing state in which the wearer wears the glasses.

  In addition, for example, the eyeglass measurement device according to the present embodiment automatically moves at least one of the left and right temples in the left-right direction based on the wearer's head width information. Thus, the operator can easily adjust the width between the temples to the head width of the wearer.

<Transformation example>
In addition, the front support part 21 in a present Example should just be the structure which supports at least 1 location of the front part of the spectacles F, and is not limited to support of bridge FB only. For example, the front support portion 21 may support the rim FR (left rim FRL and right rim FRR). In this case, it is good also as a structure which provides two front support parts, the front support part which supports left rim FRL, and the front support part which supports right rim FRR. Of course, the front support portion 21 may support a plurality of locations such as the bridge FB and the rim FR. In this case, three front support portions for supporting the bridge FB, the left rim FRL, and the right rim FRR may be provided, or the bridge FB, the left rim FRL, and the right rim FRR may be provided. The structure supported by one front support part may be sufficient.

  In addition, the back support part 22 in a present Example should just be the structure which supports at least 2 places of the back site | parts of the spectacles F, and is not limited to support only modern FM (left modern FML and right modern FMR). For example, the rear support unit 22 may support the temple FT (the left temple FTL and the right temple FTR). Of course, the rear support portion 22 may support a plurality of locations such as the modern FM and the temple FT as the rear portion of the glasses F.

  In the present embodiment, the configuration in which the weight is measured in each of the left modern FML and the right modern FMR of the glasses F is described as an example, but the present invention is not limited thereto. For example, since the glasses F are generally symmetric, the weight of either the left or right modern may be measured. For example, when only the weight of the left modern FML is measured, the weight of the right modern FMR may be regarded as substantially the same as the weight of the left modern FML. Similarly, when only the weight of the right modern FMR is measured, the weight of the left modern FML may be regarded as substantially the same as the weight of the right modern FMR.

  In the present embodiment, a configuration in which measurement sensors (that is, the measurement sensor 4a, the measurement sensor 4b, and the measurement sensor 4c) are provided at three locations of the bridge FB, the left modern FML, and the right modern FMR in the glasses F is provided. However, the present invention is not limited to this. Any number of such measurement sensors may be installed as long as the weight can be measured at the positions of the front part and the rear part of the glasses F.

  Note that, for example, in the present embodiment, the front support portion 21 and the measurement sensor 4a are integrally formed, and the configuration using both is described as an example, but the present invention is not limited to this. For example, the front support portion 21 and the measurement sensor 4a may be provided separately. In this case, the measurement sensor 4a may be disposed in the vicinity of the front support portion 21. Of course, you may arrange | position the measurement sensor 4a in the position different from the front support part 21. FIG.

  Further, for example, in the present embodiment, the rear support portion 22 and the measurement sensor 4b, or the rear support portion 22 and the measurement sensor 4c are integrally formed and described as an example. It is not limited. For example, the measurement sensor 4 b may be disposed in the vicinity of the rear support portion 22 or may be disposed at a position different from the rear support portion 22. Similarly, for example, the measurement sensor 4 c may be disposed in the vicinity of the rear support portion 22, or may be disposed at a position different from the rear support portion 22.

  The temple adjustment unit 100 according to the present embodiment has been described by taking as an example a configuration in which the width between the temples FT in the glasses F is changed by the rear support portion 22 contacting both the inside and the outside of the temple. However, it is not limited to this. For example, the temple adjustment unit 100 may abut only on the inside of the left and right temples, or may abut only on the outside of the left and right temples. For example, the temple adjustment unit 100 may be configured such that one of the left and right temples is in contact with the inside and the other is in contact with the outside.

  In addition, for example, the temple adjustment unit 100 according to the present embodiment has been described by taking as an example a configuration in which the width between the temples FT in the glasses F is changed by moving both positions of the left and right temples. Not. For example, the temple adjustment unit 100 may have a configuration in which at least one of the left and right temples moves inward (for example, a configuration in which the temple is pushed inward), or a configuration in which at least one of the left and right temples moves outward (for example, a temple). Or the like that is pulled outward).

  In the present embodiment, the configuration in which the balance information is output by being displayed on the display 72 has been described as an example, but the present invention is not limited to this. For example, the balance information may be output by printing using a printer or the like, or may be output as data to an external memory.

  In the present embodiment, the eyeglass support unit 3 is moved with respect to the measurement unit 2 so that the optical axis L1 of the measurement optical system 10 and the visual axis of the wearer pass through the lens LE of the eyeglass F. However, the present invention is not limited to this. For example, by moving the measurement unit 2 instead of moving the spectacle support unit 3, the optical axis L1 of the measurement optical system 10 and the point where the wearer's visual axis passes through the lens LE of the spectacles F. It is good also as a structure made to correspond.

  In the present embodiment, the configuration in which the lens characteristic of the lens LE is obtained is described as an example in that the wearer's visual axis passes through the lens LE of the spectacles F. However, the present invention is not limited to this. For example, the lens LE may be scanned with respect to the nosepiece 6 to acquire the lens characteristics of the entire lens LE. For example, in this case, the control unit 60 may acquire a mapping image indicating the lens characteristics based on such lens characteristics.

  In the present embodiment, the configuration in which the spectacles support unit 3 is moved in the up-down direction, the left-right direction, and the front-rear direction based on the spectacle wearing parameters in a state where the wearer wears the spectacles F has been described as an example. However, it is not limited to this. For example, the spectacles support unit 3 may be configured to move only in the up-down direction and the left-right direction and not in the front-rear direction. In this case, the refractive power when the wearer looks forward through the lens LE framed in the spectacles F may be obtained by calculation using the wearer's corneal apex distance VD.

DESCRIPTION OF SYMBOLS 1 Glasses measuring apparatus 3 Glasses support unit 4 Measurement unit 5 Drive part 5b Forward tilt angle adjustment mechanism 10 Measurement optical system 21 Front support part 22 Back support part 60 Control part 75 Memory 100 Temple adjustment unit

Claims (7)

A spectacle measuring device for measuring lens characteristics of spectacles,
Adjusting means for adjusting at least one of the deformation of the glasses and the forward tilt angle of the glasses, and reproducing the wearing state in which the glasses are worn by a wearer;
Lens measuring means for measuring the lens characteristics of the glasses in which the wearing state is reproduced by the adjusting means;
An eyeglass measuring device comprising: In the eyeglass measuring device according to claim 1,
The adjusting means includes forward tilt angle adjusting means for changing the forward tilt angle by moving at least one of a position of a front part of the glasses and a position of a rear part of the glasses in the vertical direction. A spectacle measuring device characterized by the above. In the eyeglass measurement device according to claim 2,
The forward tilt angle adjustment means moves at least one of the position of the bridge of the glasses as the position of the front part of the glasses and the position of the temples of the glasses as the position of the rear part of the glasses in the vertical direction. Thus, the spectacle measuring device is characterized in that the forward tilt angle is changed. In the eyeglass measurement device according to claim 3,
The forward tilt angle adjusting means moves the position of the temple in the vertical direction with the bridge of the spectacles as a rotation center. In the spectacles measuring apparatus in any one of Claims 2-4,
Forward tilt angle acquisition means for acquiring forward tilt angle information of the glasses when the wearer wears the glasses;
The spectacle measuring device, wherein the forward tilt angle adjusting unit changes the forward tilt angle based on the forward tilt angle information acquired by the forward tilt angle acquiring unit. In the spectacles measuring apparatus in any one of Claims 1-5,
The adjusting means is a temple adjusting means for changing a width between the left and right temples by abutting at least one of the left and right temples of the glasses and moving a position of at least one of the left and right temples. An eyeglass measurement device comprising: The spectacle measuring device according to claim 6.
Head width acquisition means for acquiring head width information of a wearer wearing the glasses;
The temple adjusting unit moves the at least one of the left and right temples in the left-right direction based on the head width information acquired by the head width acquiring unit.

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