JP3861503B2 - Inspection method and inspection apparatus for spectacle lens - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spectacle lens holding method and apparatus, and a spectacle lens inspection method and apparatus for measuring power, astigmatism axis, prism and center thickness using the means.
[0002]
[Prior art]
Conventionally, when carrying, inspection, marking, packaging, etc. while holding a spectacle lens, it is common to hold the outer periphery of the spectacle lens using a three-claw centripetal chuck or a four-claw parallel chuck. .
[0003]
As disclosed in Japanese Patent Application Laid-Open No. 10-73513, the inspection apparatus for measuring the power, astigmatism axis, prism, and center thickness of a spectacle lens using a conventional holding mechanism is inspected only by a circular spectacle lens. It is a target. After roughly positioning the spectacle lens with the three-claw centripetal chuck in the preset station, the spectacle lens outer periphery is chucked with a chucking device. The chucking device conveys the spectacle lens to the positioning station, detects the measurement reference point using the image processing device at the positioning station, and corrects the position. Next, the center thickness is measured at the center thickness measuring station. Thereafter, the chucking device controls the posture of the spectacle lens at the posture control station, conveys the spectacle lens to the measurement position of the measurement station, and measures at least one of the power, the astigmatism axis, and the prism. As shown in FIG. 7, the conventional chucking device grips the outer peripheral side surface of a circular spectacle lens 70 with a chuck 71 having a non-slip component attached to the tip, and the chuck 71 rotates only in the horizontal reference line direction 72. Have The chuck 71 is attached to chuck hands 73 a and 73 b that move synchronously, and rotates in conjunction with the brake plate 74. The brake plate 74 holds the position whose posture is controlled by operating the anti-rotation cylinder 75.
[0004]
In addition, the measuring instrument cradle uses a nosepiece of a commercially available lens meter, and the measurement is performed on the assumption that the spectacle lens has become a nosepiece.
[0005]
Furthermore, a method shown in FIG. 8 is provided for attitude control of a conventional spectacle lens. This is because the anti-rotation cylinder 75 is retracted so that the surface of the measuring unit of the spectacle lens 70 is in contact with both of the at least two posture detection terminals 77a and 77b whose tips are horizontally aligned. By rotating the lens 70, the posture is determined so that the surface of the measuring unit becomes horizontal, the cylinder 75 for rotation prevention is pushed out, the brake plate 74 is locked, the state is kept, and it is transported to the measuring device and inspected. is there. When there are a plurality of measurement points, the measurement unit is leveled by the attitude control unit having the attitude detection terminal 77 and then transported to the measuring device to measure each measurement item.
[0006]
In addition, the inspection of non-circular spectacle lenses whose outer periphery is partially cut (hereinafter referred to as irregular lenses) is not automated, and the spectacle lens power and astigmatic axis determined by the inspection operator at the time of design And a measurement reference point that determines the measurement position of the prism. Then, the inspection worker determines the posture by placing the measurement position of the spectacle lens on the cradle of the lens meter, holds it as it is or with a hand or a jig, and passes or fails based on the measured value displayed on the lens meter. Is being determined. Inspecting the center thickness, the inspection operator holds the eyeglass lens with the convex side down, places the dial gauge measurement terminal vertically at the measurement point, and determines whether the center gauge is good or bad based on the measured value displayed on the dial gauge. Discriminating.
[0007]
[Problems to be solved by the invention]
Most conventional spectacle lenses have a circular shape before being put into a spectacle frame. However, in recent years, the spectacle lens has been thinned, and the spectacle lens is polished so that the thinnest center thickness can be obtained from the spectacle frame data and prescription. However, the conventional inspection apparatus that automatically measures the power, astigmatism axis, prism, and center thickness of the spectacle lens chucks the outer peripheral side surface of the spectacle lens as shown in FIG. First, there was a limit to the spectacle lens shape that could be inspected by the inspection device. Therefore, inspection of the deformed lens has to be performed manually, and skill is required due to the difficulty of handling. In addition, since the inspection apparatus differs depending on the shape of the spectacle lens, the inspection process is complicated. Further, since the eyeglass lens having a thin edge is in point contact with the tip of the chuck, there is a problem that the holding force is weak and the contact portion is displaced due to slippage or the eyeglass lens is dropped. When the chucking force was increased to suppress slippage, the knife-edge spectacle lens was defective due to chipping and cracking.
[0008]
Further, a spectacle lens having a prism other than the vertical reference line direction 76 according to the prescription has a rotation axis in the vertical reference line direction 76 in a chucking device having a rotation axis only in the horizontal reference line direction 72 shown in FIG. Since it is not provided, the measurement point on the measurement surface side of the spectacle lens cannot be set so as to follow the cradle of the measurement device, and it is in a state of being in contact with the measurement device cradle. In this state, the measurement value varies and an accurate measurement result cannot be obtained.
[0009]
Further, when the power of the spectacle lens, the astigmatic axis, and the prism are automatically measured by the conventional inspection apparatus, the measurement is started at the same time as the spectacle lens is conveyed to the measurement position. That is, the measurement is performed without confirming whether or not the measurement device has been imitated. Therefore, when the measured value becomes abnormal due to the contact with the cradle, it is erroneously determined as a processing defect of the spectacle lens itself.
[0010]
Further, in the attitude control station having at least two attitude detection terminals 77 whose tips shown in FIG. 8 are horizontally aligned, the surface of the measurement unit of the spectacle lens is swung so as to contact any of the attitude detection terminals. When posture control is performed, it is necessary to perform posture control each time the number of measurement points increases, and the chucking device goes back and forth between the posture control station and the measurement station each time. Therefore, the inspection of spectacle lenses having a plurality of measurement points requires a long time for posture control and reduces the processing capacity per hour. Further, if the eyeglass lens is applied to the posture detection terminal 77 at a high speed, there is a risk that scratches or cracks may occur at the contact portion with the posture detection terminal 77, which is not suitable for high-speed posture control. Further, since the apparatus configuration is complicated, there is a problem that the initial cost of the apparatus is high and the maintainability is lowered.
[0011]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems. The posture control of the spectacle lens is performed by a two-axis rotation mechanism orthogonal to each other, the spectacle lens is roughly positioned, and the measurement reference point of the spectacle lens is detected. Holding the spectacle lens by a spectacle lens holding method comprising the steps of: holding the objective side or eyeball side surface of the spectacle lens, and by causing the spectacle lens to follow the cradle of the measuring instrument, A spectacle lens inspection method for measuring at least one of an astigmatism axis and a prism, wherein the spectacle lens is sucked through the cradle of the measurement device so that the measurement surface of the spectacle lens follows the cradle of the measurement device. The method for inspecting a spectacle lens, characterized in that the measurement is performed.
[0015]
The spectacle lens inspection method according to claim 1 is characterized in that the measurement is performed after detecting that the measurement surface of the spectacle lens follows the cradle of the measuring instrument.
[0016]
Further, in the eyeglass lens inspection method according to claim 1, the horizontal direction from the first measurement point of the spectacle lens to the second and subsequent measurement points based on the amount of movement in the horizontal direction and the vertical direction obtained in advance. In addition, by moving in the vertical direction, posture control is performed so that the measurement surface of the spectacle lens follows the cradle of the measurement device.
[0017]
The spectacle lens inspection apparatus of the present invention includes a means for controlling the posture of the spectacle lens by means of a biaxial rotating mechanism perpendicular to each other, a means for roughly positioning the spectacle lens, a means for detecting a measurement reference point of the spectacle lens, The spectacle lens is held by a spectacle lens holding device having means for holding the objective side or eyeball side surface of the spectacle lens, and the spectacle lens is made to follow the cradle of the measuring instrument to measure the frequency and astigmatism. An eyeglass lens inspection apparatus that measures at least one of an axis and a prism, and sucks the eyeglass lens through the measurement device cradle so that the measurement surface of the spectacle lens follows the cradle of the measurement device In this case, the measurement is performed.
[0021]
According to a fourth aspect of the present invention, there is provided the spectacle lens inspection apparatus further comprising a detection device for detecting that the measurement surface of the spectacle lens follows the cradle of the measurement device.
[0022]
Further, in the eyeglass lens inspection apparatus according to claim 4, the horizontal direction from the first measurement point of the spectacle lens to the second and subsequent measurement points based on the amount of movement in the horizontal direction and the vertical direction obtained in advance. In addition, by moving in the vertical direction, posture control is performed so that the measurement surface of the spectacle lens follows the cradle of the measurement device.
[0023]
In order to solve the above-mentioned problems, the present invention can hold the eyeball-side or objective-side surface of the spectacle lens with at least one suction pad so that the spectacle lens having a circular outer periphery can be a deformed lens. A chucking device that can be held has been devised. By using this chucking device, it is possible to hold spectacle lenses of any shape including deformed lenses, so the spectacle lens power, astigmatism axis, prism and center thickness inspection device, and spectacle lens marking device It can be used for eyeglass lens packing devices, eyeglass lens transport devices, and the like.
[0024]
If this chucking device is used in the inspection device, the inspection of the power, astigmatism axis, prism and center thickness of spectacle lenses of various shapes including deformed lenses can be automated, contributing to productivity improvement and man-hour reduction. Furthermore, by unifying the processes that have conventionally been mixed with manual inspection and automatic inspection, it is possible to improve space efficiency and simplify process management. In particular, the inspection of the deformed lens is an operation requiring skill because it is difficult to set the lens meter on the cradle because the outer peripheral portion cannot be used as a reference even when the inspection is performed manually, and the measurement results are likely to vary. However, even with an irregular lens, the measurement measurement reference point can be detected using the image processing apparatus, so that highly accurate positioning is possible, and the measurement accuracy is improved and stabilized. Further, by attracting and holding the eyeball side or the objective side of the spectacle lens, even if the outer periphery is a knife edge, positional displacement due to slipping at the time of handling, and chipping or cracking at the chuck portion do not occur.
[0025]
In addition, a chucking device that can be rotated independently in the horizontal reference line direction and the vertical reference line direction so that the measurement side surface of the spectacle lens of any shape can reliably follow the cradle of the measuring device. Equipped. By providing two θ axes orthogonal to the chucking device, the measurement side surface of the spectacle lens can be made to follow the measuring device cradle at any measurement position of the spectacle lens. There is an effect that high-accuracy measurement is possible.
[0026]
Further, as shown in FIG. 5 and FIG. 6, the measuring device cradle is sucked by using a vacuum generator 54 such as a vacuum pump or an ejector, and the measurement side surface of the spectacle lens is sucked to receive the measuring device. Try to follow the table. By adsorbing the spectacle lens, the wobbling at the time of posture control is attenuated at an early stage, and the time until the measurement value is stabilized is shortened. Thereby, the cycle time of the inspection apparatus can be greatly shortened. Further, whether the measurement side surface of the spectacle lens is imitated with respect to the measurement device cradle is copied when the pressure sensor 55 is attached in the vacuum circuit and the spectacle lens is in contact with the measurement device cradle. The pressure difference is detected when The measurement is performed after detecting that the spectacle lens has imitated the cradle, so that the reliability of the measurement value is increased, and the abnormality of the measurement value due to the posture control abnormality is not erroneously determined as a defective spectacle lens. Is obtained.
[0027]
The posture control of the spectacle lens is performed by moving the spectacle lens in the horizontal direction and the vertical direction from the first measurement point to the second and subsequent measurement points based on the horizontal and vertical movement amounts obtained in advance. Then, the measurement surface of the spectacle lens is copied to the measurement device cradle. When there are a plurality of measurement positions, posture control is performed by moving the spectacle lens in the horizontal direction and the vertical direction based on the movement amounts in the horizontal direction and the vertical direction obtained in advance, and then the measurement is performed. This eliminates the need for a separate attitude control station and greatly reduces the processing time required for attitude control. Furthermore, since the apparatus configuration can be simplified, the initial cost is low and the effect of improving the maintainability can be obtained. In addition, by not using a detection terminal for posture control, the concern about scratches at the terminal contact portion is eliminated.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments.
[0029]
FIG. 1 shows a schematic diagram of the chucking device of the present invention. The spectacle lens 1 including a deformed lens is held by vacuum suction on the object side surface of the spectacle lens 1 with two suction pads 2. By holding the object side surface of the spectacle lens 1 by vacuum suction with the two suction pads 2, handling is possible even if the outer periphery is not circular. The two suction pads 2 suck and hold positions at equal intervals from the optical center of the spectacle lens 1. The suction pad 2 is attached to a suction pad fixing part 3 having a hollow vacuum path, and the suction pad fixing part 3 is attached to an axis 1 of the θ1 axis having a hollow vacuum path. A piping joint 5 and a piping tube 6 are connected to the shaft core 4 of the θ1 axis. The piping joint 5 is preferably a swivel joint in order to reduce the rotational load of the θ1 axis. The piping tube 6 is preferably a soft tube to reduce the rotational load of the θ2 axis. The interlocking component 7 is attached to rotate the two suction pads 2 in conjunction with each other, and balances the weight so as to balance the θ1 axis without attracting the spectacle lens. A U-shape is formed so as not to obstruct the measurement points of the shaft, prism and center thickness. The θ2 axis rotary hand 8 has a θ1 axis attached to the tip, and rotates around the axis 9 of the θ2 axis. It is also important to balance the weight of the chucking device 15 with respect to the θ2 axis. The θ1 axis and the θ2 axis are in a perpendicular relationship. The shaft core 9 of the θ2 axis is attached to the hand support component 10 via a bearing. When the spectacle lens 1 is transported, the spectacle lens 1 is prevented from interfering with the measuring device overhang, and the cylinder 11 and the cylinder 13 are pushed out to prevent the spectacle lens 1 from wobbling, and the θ1 axis and θ2 Lock the shaft. The spring 12 and the spring 14 prevent the θ1 axis and the θ2 axis from rotating before the posture control is performed due to the collapse of the weight balance when the cylinder 11 and the cylinder 13 are retracted when measuring the spectacle lens having the eccentric gravity center. Attach to secure. As the spring 12 and the spring 14, those having a small spring constant that does not hinder posture control are used.
[0030]
An inspection apparatus incorporating the chucking apparatus 15 for measuring the power, the astigmatic axis, the prism, and the center thickness will be described for each process.
[0031]
In the next positioning step, the measurement reference point of the spectacle lens is detected by the image processing apparatus. The rough positioning of the spectacle lens is performed before going to the next process, so that rough positioning is performed for the purpose of narrowing down the area for image processing. By narrowing down the area for image processing, the time required for image processing can be shortened, leading to improvement in the processing capability of the apparatus. FIG. 2 shows a schematic diagram of an approximate positioning unit for a spectacle lens. Since this device is also intended for deformed lenses, a 7-jaw centripetal chuck is used. A rotating shaft 20 is provided at a position divided into seven in the circumferential direction, a lever 21 is attached to each rotating shaft, and a positioning pin 22 is attached to the tip of the lever. The rotary shaft 20 is attached to the general positioning table 23 via a bearing. Further, a pulley is attached below the rotary shaft 20 and is connected to a chuck opening / closing drive device via a timing belt. Accordingly, the positioning pin 22 is configured to move synchronously by operating the chuck opening / closing driving device, and the eyeglass lens 1 is centered. Although the outer periphery of the deformed lens is partially cut, a circular portion remains, so that if the center of the deformed lens is centered with a 7-jaw chuck, at least three positioning pins can hit the remaining circular portion of the deformed lens. Since the portions remaining without being cut by the deformed lens are facing each other, the odd number of positioning pins increases the probability that the three positioning pins hit the circular portion. Note that the approximate positioning may be performed using a stepped dish corresponding to the outer diameter of the spectacle lens, instead of using the chuck.
[0032]
Detection Reference Point Detection The spectacle lens 1 that is generally positioned is conveyed to a measurement reference point detection unit. FIG. 3 shows a schematic diagram of the measurement reference point detection unit. In the measurement reference point detection unit, a light source 30 is placed below the general positioning table 23 and a CCD camera 31 is placed above it. The measurement reference point 32 of the spectacle lens 1 is marked, and the marking is captured by the CCD camera 31 to perform image processing. The general positioning table 23 has a hole in the center of the table so that light from the light source 30 can pass through. In the measurement reference point detection unit, the amount of deviation ΔX, ΔY in the X and Y directions and the amount of deviation Δθ in the rotation direction between the optical center 34 which is the middle point between the two measurement reference points 32 and the approximate positioning chuck center 33 in the image processing apparatus. And only the shift amount Δθ in the rotation direction is corrected. Thereafter, the chucking device 15 is moved until the chuck center of the chucking device 15 comes to the approximate positioning chuck center 33 of the measurement reference point detection unit, and is further moved by the shift amounts ΔX and ΔY in the X and Y directions. The receiving position of the lens 1 is corrected. In this state, the suction pad 2 of the chucking device 15 holds the spectacle lens 1 by suction.
[0033]
The center thickness measurement chucking device 15 sucks and holds the spectacle lens 1 in a position-corrected state,
Move to the center thickness measurement unit. FIG. 4 shows a schematic diagram of the center thickness measuring unit and how it moves to the measuring device. In the center thickness measurement unit, linear gauges 40 and 41 are arranged above and below the chucking device, respectively. When the chucking device 15 moves to the center thickness measuring unit, the lower linear gauge 40 is raised, and the upper linear gauge 41 is lowered at the same time. The moving speed of the linear gauges 40 and 41 is made as slow as possible so that the eyeglass lens 1 is not scratched by the contact at the tip of the linear gauge. From the measurement results of the upper and lower linear gauges, the center thickness of the spectacle lens 1 is calculated, and quality is determined. When the center thickness measurement is completed, the upper linear gauge 41 rises and at the same time the lower linear gauge 40 descends. The chucking device 15 moves to the auto lens meter 50 while keeping the height at which the center thickness is measured.
[0034]
Measurement of power, astigmatism axis and prism FIG. 5 shows a schematic diagram of posture control of the geometrical center (fitting point) in the present invention. When performing the posture control of the spectacle lens 1, the cylinder 11 and the cylinder 13 of FIG. 1 are pulled in, and the state is balanced by the spring 12 and the spring 14 having a small spring constant so that the θ1 axis and the θ2 axis do not interfere with the posture control. Then, the chucking device 15 is lowered. As shown in FIG. 4, the descending amount of the chucking device 15 is calculated from the measured value of the lower linear gauge 40 of the center thickness measuring unit, so that the spectacle lens measurement surface 59 is excessively pressed against the cup 52 or lifted. Prevent measuring in the state. The spectacle lens measurement surface 59 hits the cup 52 made of resin or rubber fixed to the tip of the cradle 51 of the auto lens meter 50 and is made to follow the cup 52. In the chucking device 15, the orthogonal θ1 axis and θ2 axis rotate independently of each other, so that spectacle lenses of any shape can follow the cup 52. In this state, at least one of power, astigmatism axis, and prism is measured. The cup 52 is attached so that the contact surface is not scratched when it comes into contact with the spectacle lens measurement surface 59.
[0035]
The cradle of the auto lens meter 50 may be a commercially available nosepiece, but it can stabilize the measured value early by reducing the wobbling of the hand when performing posture control following the cup 52, In order to accurately follow the measurement surface 59 of the spectacle lens held by the cup 52, a joint 53 is attached to the pedestal 51, and a vacuum generating device 54 such as a vacuum pump or an ejector is connected by a hose and vacuum suction is performed. A pressure sensor 55 is attached in the middle of the vacuum circuit, and the difference between the pressure when the spectacle lens measurement surface 59 imitates the cup 52 and the pressure when the spectacle lens measurement surface 59 strikes one side is detected, and it is determined whether or not the spectacle lens is imitated. The pressure difference in the vacuum circuit in a state where the spectacle lens 1 is not present and a state where the spectacle lens measurement surface 59 follows the cup 52 may be detected to stop the descent of the chucking device 15 and start measurement. In order to prevent vacuum leakage from the cradle 51 and the light projection unit 57 of the auto lens meter, the sealing material 56 increases the airtightness. In order to improve the airtightness of the spectacle lens measurement surface 59 and the cup 52 and to ensure that the spectacle lens measurement surface 59 follows the cup 52, a method of attaching the suction pad 58 to the tip of the cradle 51 is also effective. In the measurement of the fitting point portion of a spectacle lens having a prism and the vicinity thereof, the moment applied to the θ1 axis and the θ2 axis is small and difficult to follow the cup 52. It is particularly effective.
[0036]
FIG. 6 shows a schematic diagram of posture control other than the geometric center portion (other than the fitting point portion) in the present invention. After measuring at least one of power, astigmatism axis, and prism at the fitting point, the spectacle lens 1 is released upward. When the spectacle lens 1 rises to the horizontal movement height, the cylinder 11 and the cylinder 13 shown in FIG. 1 are pushed out to return the spectacle lens 1 to the horizontal state. And it moves horizontally based on the moving amount | distance calculated | required previously to the 2nd measurement point. The movement amount obtained in advance is obtained from the prescription data of the spectacle lens and the shape data of the spectacle lens. At the time of horizontal movement, the cylinder 11 and the cylinder 13 remain pushed out, and the fluctuation of the spectacle lens due to the movement is suppressed. When horizontally moved to the second measurement point, the cylinder 11 and the cylinder 13 are drawn again to make the θ1 axis and the θ2 axis free. Next, the spectacle lens 1 is lowered by an amount obtained by adding the above-described increase to the height difference between the first measurement point (fitting point portion) and the second measurement point of the spectacle lens 1 obtained in advance. Then, the spectacle lens measurement surface 60 is made to follow the cup 52. At this time, vacuum suction of the cradle 51 is the same purpose as the posture control at the fitting point. In this state, at least one of power, astigmatism axis, and prism is measured. The above operation is repeated after the third measurement point.
[0037]
【The invention's effect】
As described above, by using the spectacle lens holding method and apparatus of the present invention, it becomes possible to chuck a deformed lens that cannot be achieved by conventional techniques. It can be used for a prism and center thickness inspection device, a spectacle lens marking device, a spectacle lens packaging device, and a spectacle lens transport device. Further, if this chucking device is utilized in the inspection device, it becomes possible to control the posture of the spectacle lens in which the prism is prescribed in a direction other than the deformed lens and the vertical reference line. As a result, the inspection of the power, the astigmatism axis, the prism and the center thickness can be automated in any shape of spectacle lens, and productivity can be improved and man-hours can be reduced. In addition, a significant reduction in inspection man-hours leads to a reduction in manufacturing costs. In addition, uniform quality can be ensured by eliminating variations in measurement results, and a process management system can be constructed by early feedback of measurement value abnormalities.
[Brief description of the drawings]
FIG. 1 is a schematic view of a chucking device of the present invention (A: top view B: side view)
FIG. 2 is a schematic diagram of a general positioning unit. FIG. 3 is a schematic diagram of a measurement reference point detection unit (A: side view B: a diagram showing how a measurement reference point is displaced).
FIG. 4 is a schematic diagram of a center thickness measuring unit and a diagram showing a state of movement to a measuring device. FIG. 5 is a schematic diagram of posture control of a geometric center. FIG. 6 is a schematic of posture control other than the geometric center. FIG. 7 is a schematic diagram of a conventional chucking device. FIG. 8 is a schematic diagram of conventional posture control.
1. ・ Glasses lens 2. ・ Adsorption pad 3 ・ ・ Adsorption pad fixing part 4. ・ Axis axis 5 of the θ1 axis ・ ・ Piping joint 6 ・ ・ Piping tube 7 ・ ・ Interlocking parts 8 ・ ・ θ2 axis rotary hand 9 · · Axis 2 of the θ axis · · hand support component 11 · · cylinder 12 · · spring 13 · · cylinder 14 · · spring 15 · · chucking device 20 · · rotating shaft 21 · · lever 22 · · positioning pin 23 · · Near positioning table 30 · · Light source 31 · CCD camera 32 · Measurement reference point 33 · · Near positioning chuck center 34 · · Optical center 40 · · Linear gauge 41 · · Linear gauge 50 · · Auto lens meter 51 ·・ Receiver 52 ・ ・ Cup 53 ・ ・ Fitting 54 ・ ・ Vacuum generator 55 ・ ・ Pressure sensor 56 ・ ・ Seal material 57 ・ Auto lens meter projector 58 ・ ・ Adsorption pad 59 ・ ・ Lens measuring surface 6 for spectacles ..Glass lens measuring surface 70..Circular eyeglass lens 71..Chuck 72..Horizontal reference line direction 73..Chuck hand 74..Brake plate 75..Rotation stop cylinder 76..Vertical reference line direction. 77. ・ Attitude detection terminal

Claims (6)

A step of controlling the posture of the spectacle lens by an orthogonal two-axis rotation mechanism, roughly positioning the spectacle lens, a step of detecting a measurement reference point of the spectacle lens, an objective side or an eyeball of the spectacle lens Holding the spectacle lens by the step of holding the side surface,
A spectacle lens inspection method for measuring at least one of a power, an astigmatism axis and a prism by copying the spectacle lens on a cradle of a measuring instrument,
A method for inspecting a spectacle lens, wherein the measurement is performed while sucking the spectacle lens through the cradle of the measurement device so that a measurement surface of the spectacle lens follows the cradle of the measurement device . The method for inspecting a spectacle lens according to claim 1,
An inspection method for spectacle lenses, comprising: measuring after detecting that the measurement surface of the spectacle lens follows the cradle of the measuring instrument. The method for inspecting a spectacle lens according to claim 1,
Based on the amount of movement in the horizontal and vertical directions determined in advance, the spectacle lens is moved in the horizontal and vertical directions from the first measurement point of the spectacle lens to the second and subsequent measurement points. The eyeglass lens inspection method is characterized in that posture control is performed so that the measurement surface of the eyeglass lens follows. A means for controlling the posture of the spectacle lens by means of two orthogonal rotation mechanisms, a means for roughly positioning the spectacle lens, a means for detecting a measurement reference point of the spectacle lens, an objective side or an eyeball of the spectacle lens Holding the spectacle lens by a spectacle lens holding device comprising means for holding the side surface,
A spectacle lens inspection apparatus that measures at least one of a power, an astigmatism axis, and a prism by copying the spectacle lens on a cradle of a measuring instrument,
Eyeglasses comprising means for performing the measurement while sucking the eyeglass lens through the cradle of the measurement device so that the measurement surface of the spectacle lens follows the cradle of the measurement device Lens inspection equipment. 5. The spectacle lens inspection apparatus according to claim 4, further comprising a detection device that detects that a measurement surface of the spectacle lens follows a cradle of the measurement device. . The inspection apparatus for spectacle lenses according to claim 4,
Based on the amount of movement in the horizontal and vertical directions determined in advance, the spectacle lens is moved in the horizontal and vertical directions from the first measurement point of the spectacle lens to the second and subsequent measurement points. In contrast, the eyeglass lens inspection apparatus performs posture control so that the measurement surface of the eyeglass lens follows.

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