JP2022075260A - Lens optical characteristics measuring apparatus and dotting device - Google Patents

Abstract

To provide a lens optical characteristics measuring apparatus capable of placing dots on a spectacle lens without displacement.SOLUTION: A dot mechanism part of the lens optical characteristics measuring apparatus includes a dotting device 203, an arm 202 and a dot device movement part 201. The dotting device 203 is attached to one end of the arm 202, and the dot device movement part 201 is connected to the other end of the arm 202. The dotting device 203 includes a dot pen 2032. The dot device movement part 201 moves the arm 202 to thereby move the dotting device 203, in dotting, move the dotting device 203 so that the dot pen 2032 is located on an optical axis of a measurement area and a lens in at least one of an x direction and a y direction to locate the dotted spot of the lens on the optical axis, move the dotting device 203 and/or the lens on the optical axis in a z direction, and bring the dotted spot of the lens and a pen tip of the dot pen 2032 in contact with one another for dotting.SELECTED DRAWING: Figure 13

Description

The present invention relates to a lens optical characteristic measuring device and a stamping device.

At optician stores, a lens optical characteristic device that measures optical characteristics such as the refractive index of a spectacle lens, which is commonly called a lens meter, is used. When measuring the optical characteristics of a lens, it is common to make (apply) a mark on the lens in order to clarify the measurement point (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-199303

When making a mark on a lens, it is common to manually place the lens on the nosepiece or support pin and use a point pen to make a mark. However, when the lens is placed on the nose piece or the support pin to hit the mark, there is a problem that the lens or the mark pen is misaligned and the mark cannot be hit accurately.

Therefore, an object of the present invention is to provide a lens optical characteristic measuring device and a stamping device capable of accurately marking a stamp on a lens.

In order to achieve the above object, the first lens optical characteristic measuring device (claim 1) of the present invention is used.
Includes operation input unit, optical system, lens holding unit, lens position moving unit, stamp mechanism unit, measurement control unit, measurement calculation unit, and output unit.
The operation input unit can input operation information including measurement contents to the measurement control unit.
The optical system includes a light irradiation unit and a light receiving unit.
The light irradiation unit irradiates the lens to be measured with light.
The light receiving unit receives the measurement light emitted from the lens irradiated with the light, and receives the measurement light.
A measurement area and an optical axis due to light irradiation are formed between the light irradiation unit and the light receiving unit.
The lens is a spectacle lens.
The lens is a lens before processing, a lens after processing, or a lens installed on the frame of spectacles after processing.
The lens holding portion holds the lens and holds the lens.
The lens position moving portion is connected to the lens holding portion and can move the position of the lens in the X-axis direction and the Y-axis direction.
The X-axis direction and the Y-axis direction are orthogonal to each other on the same plane and orthogonal to the optical axis direction.
The stamping mechanism portion includes a stamping device, an arm, and a stamping device moving portion.
The stamping device is attached to one end of the arm, and the stamping device moving portion is connected to the other end of the arm.
The stamping device includes a stamping pen, the stamping pen can apply a stamping point to the lens, and the stamping pen is one.
The stamping device moving unit can move the stamping device in a direction including the Z-axis direction by moving the arm.
The Z-axis direction is a direction parallel to the optical axis.
The measurement control unit can control the position movement of the lens by the lens position moving unit and the movement of the stamping device by the stamping device moving unit.
The measurement calculation unit can calculate the lens optical characteristics based on the optical signal received by the light receiving unit.
The output unit can output the lens optical characteristics and can output the lens optical characteristics.
By controlling the stamping device moving unit, the measurement control unit moves the stamping device into the measurement area at the time of marking on the lens, and at the time of measuring the optical characteristics of the lens, the marking is performed. Move the point device out of the measurement area and move it out of the measurement area.
At the time of the stamp,
By controlling the stamping device moving unit, the measurement control unit can move the stamping device so that the stamping pen is located on the optical axis of the measuring area, and the lens. By controlling the position moving portion, it is possible to move the lens in at least one of the X-axis direction and the Y-axis direction to position the mark point portion for striking the mark point of the lens on the optical axis. can be,
By controlling the stamping device moving unit, the measurement control unit can bring the pen tip of the stamping pen into contact with the stamping point portion of the lens to mark.
It is a device.

The second lens optical characteristic measuring device (claim 2) of the present invention is
Includes operation input unit, optical system, lens holding unit, lens position moving unit, stamp mechanism unit, measurement control unit, measurement calculation unit, and output unit.
The operation input unit can input operation information including measurement contents to the measurement control unit.
The optical system includes a light irradiation unit and a light receiving unit.
The light irradiation unit irradiates the lens to be measured with light.
The light receiving unit receives the measurement light emitted from the lens irradiated with the light, and receives the measurement light.
A measurement area and an optical axis due to light irradiation are formed between the light irradiation unit and the light receiving unit.
The lens is a spectacle lens.
The lens is a lens before processing, a lens after processing, or a lens installed on the frame of spectacles after processing.
The lens holding portion holds the lens and holds the lens.
The lens position moving portion is connected to the lens holding portion and can move the position of the lens in the X-axis direction, the Y-axis direction, and the Z-axis direction.
The X-axis direction and the Y-axis direction are orthogonal to each other on the same plane and orthogonal to the optical axis direction.
The Z-axis direction is a direction parallel to the optical axis.
The stamping mechanism portion includes a stamping device, an arm, and a stamping device moving portion.
The stamping device is attached to one end of the arm, and the stamping device moving portion is connected to the other end of the arm.
The stamping device includes a stamping pen, and the stamping pen can apply a stamping point to the lens.
The stamping device moving unit can move the stamping device by moving the arm.
The measurement control unit can control the position movement of the lens by the lens position moving unit and the movement of the stamping device by the stamping device moving unit.
The measurement calculation unit can calculate the lens optical characteristics based on the optical signal received by the light receiving unit.
The output unit can output the lens optical characteristics and can output the lens optical characteristics.
By controlling the stamping device moving unit, the measurement control unit moves the stamping device into the measurement area at the time of marking on the lens, and at the time of measuring the optical characteristics of the lens, the marking is performed. Move the point device out of the measurement area and move it out of the measurement area.
At the time of the stamp,
By controlling the stamping device moving unit, the measurement control unit can move the stamping device so that the stamping pen is located on the optical axis of the measuring area, and the lens. By controlling the position moving portion, it is possible to move the lens in at least one of the X-axis direction and the Y-axis direction to position the mark point portion for striking the mark point of the lens on the optical axis. can be,
The measurement control unit controls the lens position moving unit, moves the lens toward the mark point pen on the optical axis, and causes the mark point of the lens and the pen tip of the mark point pen. It is possible to make contact with and mark,
It is a device.

The marking device of the present invention is
Includes stamp pen, containment container, and two or more spring members
The stamp pen is housed in the storage container with the tip of the pen extended to the outside.
When the pen tip comes into contact with the marking point of the lens by the two or more spring members, the pen tip is urged toward the lens side.
The two or more spring members are arranged in series along the advancing / retreating direction.
The spring constant when the two or more springs are compressed is larger in the springs located on the lens side among the springs adjacent to each other in the advancing / retreating direction.
It is a device.

In the first lens optical characteristic measuring device of the present invention, the lens is held by the lens holding portion, the lens is moved in the X-axis direction and / or the Y-axis direction to position the marking point, and the marking device is placed in the optical axis direction. Move it in the (Z-axis direction) and hit the mark. In addition, the second lens optical characteristic measuring device of the present invention strikes a mark by holding the lens in the lens holding portion and moving it in the optical axis direction (Z-axis direction). Therefore, according to the first and second lens optical characteristic measuring devices of the present invention, it is possible to prevent the lens from being displaced at the time of marking, and as a result, it is possible to accurately strike the marking. Further, in the stamping device of the present invention, the spring constant when the two or more springs are compressed is larger than that of the springs located on the lens side of the adjacent springs in the advancing / retreating direction. Even if the pen is pushed into the lens, the spring pressure on the lens does not increase in proportion to the slide amount (distance) of the lens, and it is possible to prevent the marking point pen from shifting on the lens, resulting in accurate marking. It becomes possible to make a point.

FIG. 1 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 2 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 3 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 4 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 5 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 6 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 7 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 8 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 9 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 10 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 11 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 12 is a diagram showing an example of the configuration of the spectacle lens. FIG. 13 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 14 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 15 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 16 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 17 is a diagram showing an example of the configuration of the apparatus of the present invention. FIG. 18 is a graph showing an example of the relationship between the amount of variation in the pen tip and the pushing load.

Next, the present invention will be described with reference to examples. However, the present invention is not limited by the following description.

In the second lens optical characteristic measuring device of the present invention, the lens has a marking point of the optical center and two marking points arranged on a straight line passing through the optical center, and the marking device has three marking points. The three pen tips including the pen tip are arranged in a linearly aligned state so as to correspond to the mark point portion of the optical center and the two mark point points, and the pen tip in the center is the above-mentioned pen tip. The two pen tips on both sides correspond to the two mark points corresponding to the mark points in the optical center, and the mark point device moving part corresponds to the three pen tips and the center pen tip as a rotation axis. By controlling the lens position moving unit, the measurement control unit moves the lens in at least one direction in the X-axis direction and the Y-axis direction to move the optical center of the lens. It can be arranged on the optical axis, and the measurement control unit can arrange the pen tip in the middle of the marking device on the optical axis by controlling the marking device moving unit, and can be arranged on the optical axis. The three pen tips can be rotated to match the inclination of the straight line connecting the pen tips on both sides with the inclination of the straight line connecting the two marking points of the lens, and the measurement control unit can adjust the inclination of the straight line. By controlling at least one of the marking device moving unit and the lens position moving portion, the marking device can be moved to the lens side on the optical axis, and the marking on the optical axis of the lens. At least one of the movements to the point pen side may be carried out so that the three pen tips can come into contact with the three marking points of the lens. In this embodiment, the two marking points of the lens are arranged at equal intervals around the marking point of the optical center, and the three pen tips are the marking point of the optical center and the two markings. They may be arranged at equal intervals in a linearly arranged state so as to correspond to the point points.

In the first and second lens optical characteristic measuring devices of the present invention, the stamping device moving unit has a rotation axis parallel to the Z-axis direction, and the marking device moving unit has the rotation axis. The marking device mounted on one end of the arm may be rotatable on the circumference of the central axis.

In the first and second lens optical characteristic measuring devices of the present invention, the marking device moving unit can move the arm back and forth on a straight line, and the movement of the arm back and forth on the straight line causes the arm to move back and forth. The marking device may be movable back and forth on the straight line.

In the first and second lens optical characteristic measuring devices of the present invention, there are a plurality of marking points of the lens, and the measurement control unit controls the lens position moving unit to move to the one marking point. After the end of the marking point, the lens is moved in at least one direction in the X-axis direction and the Y-axis direction to position another marking point portion of the lens on the optical axis, and the measurement control unit performs the measurement control unit. By controlling at least one of the lens position moving portion and the stamping device moving portion, the pen tip of the stamping pen and another stamping point portion of the lens are brought into contact with each other for marking. It may be.

In the present invention, for example, the lens is a progressive lens, the marking point is an optical center and a marking point corresponding to two alignment marks, or the lens is a single focus lens. There are two points indicating the optical center and the axis of astigmatism.

In the first and second lens optical property measuring devices of the present invention, the stamping device further includes a storage container and two or more spring members, and the stamping pen exposes the pen tip to the outside. In this state, the pen tip is freely retracted in the storage container, and when the pen tip comes into contact with the mark point portion of the lens by the two or more spring members, the pen tip is directed toward the lens. The two or more spring members are arranged in series along the advancing / retreating direction, and the spring constants when the two or more springs are compressed are adjacent to each other in the advancing / retreating direction. In the spring, the spring located on the lens side may be larger.

In the present invention, the "corresponding stamp spot" includes both the stamp spot at the exact corresponding position and the stamp spot corresponding to the position deviated by a predetermined amount. For example, the two alignment marks are 17 mm away from the optical center, but the marking points are 17 mm away from the optical center, 16 mm away from the optical center, or 18 mm away from the optical center. Etc. are included. Similarly, the stamp spot corresponding to the optical center includes the stamp spot at the exact corresponding position and the stamp spot corresponding to the position deviated by a predetermined amount.

In the present invention, the optical characteristics of the lens are not particularly limited, and for example, relative refractive index, absolute refractive index, Abbe number, prism refractive index, spherical power (S), columnar power (C), eccentric axis angle (A), and light beam It has transmittance, ultraviolet transmittance, blue light transmittance, front and back shape, center thickness, and the like.

In the present invention, the spectacle lens may be a ball lens before processing, a lens after processing, or a lens mounted on a frame.

In the present invention, the "surface" of the lens may be, for example, a curved surface or a flat surface. Further, in the present invention, the rear surface of the lens is also referred to as the back surface of the spectacle lens.

In the present invention, the alignment mark may be an alignment mark engraved in the lens, or may be an alignment mark printed on the lens surface at a position corresponding to the alignment mark engraved in the lens.

In the present invention, the measurement points of the lens are, for example, an eye point, an optical center point, a perigee, apogee side point (left and right), an intermediate point, an intermediate side point (left and right), a near point, and a perigee side. There are points (left and right), etc. In the case of a perigee, since the eyeball does not move much when wearing spectacles, it is not necessary to measure the perigee side points (left and right). Further, in the present invention, the number of each side point of the far point, the intermediate point, and the near point is not particularly limited, and is such as 1 point, 2 points, 3 points, 4 points, 5 points, 6 points or more. It may be a plurality of points.

The program of the present invention is a program for causing a computer to execute each step of the measurement method of the present invention. In the measuring method of the present invention, "process" can be read as "procedure". The recording medium of the present invention is a computer-readable recording medium on which the program of the present invention is recorded.

Next, an embodiment of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments. In each of the following figures, the same parts are designated by the same reference numerals. Further, the explanations of the respective embodiments can be referred to each other unless otherwise specified, and the configurations of the respective embodiments can be combined unless otherwise specified.

[Embodiment 1]
FIG. 1A shows the configuration of each part of the lens optical characteristic measuring device 1 of the present embodiment. As shown in the figure, the apparatus 1 includes an operation input unit 11, a measurement control unit 12, a measurement calculation unit 13, a storage unit 14, an output unit 15, a lens position moving unit 16, a light irradiation unit 17, a lens holding unit 18, and a light receiving unit. A portion 19 and a marking mechanism portion 20 are provided. The operation input unit 11, the measurement control unit 12, the measurement calculation unit 13, and the output unit 15 are configured in, for example, a central processing unit such as a CPU or a GPU. The lens holding unit 18 holds the lens to be measured. The operation input unit 11 is connected to an input device (not shown) such as a touch panel, a mouse, or a keyboard, and inputs operation information including measurement contents to the measurement control unit 12. The measurement control unit 12 generates measurement control information based on the input operation information, and the light irradiation unit 17 emits light (upper arrow in FIG. 1A) based on the measurement control information. Irradiate the lens (not shown) held in 18. The light receiving unit 19 receives the measurement light (lower arrow in FIG. 1A) emitted from the lens irradiated with the light to generate measurement information, and the measurement calculation unit 13 uses the measurement information as the measurement information. Based on this, the optical characteristic information of the lens is generated. The optical characteristics of the lens are stored in the storage unit 14, and the optical characteristic information is output by the output unit 15. The output unit 15 is connected to an output device (not shown) such as a display and a printer, and the optical characteristic information is displayed on the display or printed by the printer. FIG. 1B shows the configuration of the marking mechanism unit 20. As shown in the figure, the stamping mechanism unit 20 includes a stamping device moving unit 201, an arm 202, and a stamping device 203. The stamping device 203 is connected to one end of the arm 202, and the stamping device moving unit 201 is connected to the other end of the arm 202. The stamping device 203 includes a stamping pen (see FIG. 13).

The storage unit 14 is, for example, a memory. Examples of the memory include a main memory (main storage device). The main memory is, for example, a RAM (random access memory). Further, the memory may be, for example, a ROM (read-only memory). The storage device may be, for example, a combination of a storage medium and a drive for reading and writing to the storage medium. The storage medium is not particularly limited, and may be an internal type or an external type, and examples thereof include HD (hard disk), CD-ROM, CD-R, CD-RW, MO, DVD, flash memory, and memory card. .. The storage device may be, for example, a hard disk drive (HDD) in which a storage medium and a drive are integrated. In the present invention, the storage unit 14 is an arbitrary component and is not essential.

In the present device 1, a communication device (not shown) may be further included, and the communication device may communicate with an external device via an external communication network (network). Examples of the communication line network include an Internet line, WWW (World Wide Web), telephone line, LAN (Local Area Network), DTN (Delay Tolerant Networking), and the like. Communication by the communication device may be wired or wireless. Examples of wireless communication include WiFi (Wireless Fidelity), Bluetooth (registered trademark), and the like. The wireless communication may be either a form in which each device communicates directly (Ad Hoc communication) or an indirect communication via an access point. Examples of the external device include a server, a database, a terminal (personal computer, tablet, smartphone, mobile phone, etc.), a printer, a display, and the like.

The lens position moving portion 16 is connected to the lens holding portion 18, and the lens held by the lens holding portion 18 by the lens position moving portion 16 is connected to the lens in the X-axis direction, the Y-axis direction, the Z-axis direction, the Xθ direction, and the Yθ. It can move in six directions, the direction and the Zθ direction. In the lens optical characteristic measuring apparatus of the present invention, the lens may be moved only in two directions of the X-axis and the Y-axis, or may be moved only in the three directions of the X-axis, the Y-axis and the Z-axis, or in the X-axis direction. It may be in only four directions of Y-axis direction, Z-axis direction and Xθ direction, or X-axis direction, Y-axis direction, Z-axis direction and Yθ direction, or X-axis direction, Y-axis direction, Z-axis direction, Xθ direction and Only the five directions of Yθ may be used. In the first lens optical characteristic measuring device 1 of the present invention, the lens position moving unit 16 can move the lens at least in the X-axis direction and the Y-axis direction. In the second lens optical characteristic measuring device of the present invention, the lens position moving unit 16 can move the lens at least in the X-axis direction, the Y-axis direction, and the Z-axis direction.

The X-axis direction and the Y-axis direction are directions orthogonal to each other in the vertical direction or the plane perpendicular to the optical axis direction. The Z-axis direction is the vertical direction or the optical axis direction. The Xθ direction is the circumferential direction of a virtual circle whose rotation center axis is the X-axis at an arbitrary position on the plane formed by the Y-axis direction and the Z-axis direction. The Yθ direction is the circumferential direction of a virtual circle whose rotation center axis is the Y-axis at an arbitrary position on the plane formed by the X-axis direction and the Z-axis direction. The Zθ direction is the circumferential direction of a virtual circle whose rotation center axis is the Z axis at an arbitrary position on the plane formed by the X-axis direction and the Y-axis direction.

[Embodiment 2]
Next, an example of the configuration of the lens optical characteristic measuring device of the present invention will be described with reference to FIGS. 2 to 11.

FIG. 2 shows a perspective view of the lens optical characteristic measuring device of the present embodiment. As shown in the figure, the present apparatus includes a display / touch panel 2, a start switch 4, a case body 5, a printer 6, a lens holding portion 18, an X-axis slider 16x1, and an arm cover 16xθ1. Reference numeral 3 is eyeglasses held by the lens holding portion 18. The lens holding portion 18 includes a nose pad 18a, and when the spectacles 3 are held, the nose pad portion of the spectacles 3 comes into contact with the nose pad 18a of the lens holding portion 18 and the nose pad portion of the spectacles 3 is fixed. Although not shown, the present apparatus further includes an operation input unit 11, a measurement control unit 12, a measurement calculation unit 13, a storage unit 14, an output unit 15, a lens position moving unit 16, a light irradiation unit 17, and a light receiving unit 19. Also included is the marking mechanism unit 20. FIG. 3 is a cross-sectional view of the side surface of the present apparatus, and shows the light irradiation unit 17. The operation input unit 11 and the output unit 15 are connected to the display / touch panel 2. The output unit 15 is also connected to the printer 6. The arm cover 16xθ1 houses an arm or the like (described later) for moving in the Xθ direction, which constitutes a part of the lens position moving portion 16. The X-axis slider 16x1 constitutes a part of the lens position moving portion 16 and moves the lens holding portion 18 in the X-axis direction. The start switch 4 can start the measurement of the optical characteristics of the apparatus. Various mechanisms and the like constituting the present device are arranged in the case main body 5.

In this device, the X-axis direction is the left-right direction on the front surface of the device (the surface on which the display and touch panel 2 is located), the Y-axis direction is the front-rear direction of the device, and the Z-axis direction is the height direction of the device. Is. Further, in this device, the Xθ direction is the circumferential direction of a virtual circle having a center point below the lens on the side surface of the device (the direction of rotation in the front-rear direction of the front of the device, the circumferential direction with the X axis as the rotation center axis). The Yθ direction is the circumferential direction of a virtual circle having a center point below the lens on the front of the device (the direction of rotation in the left-right direction of the front of the device, the circumferential direction with the Y axis as the center of rotation). The Zθ direction is the circumferential direction of a virtual circle having a center point on the outside behind the device of the lens in the device plane (the circumferential direction of the device plane, the circumferential direction with the Z axis as the rotation center axis).

FIG. 4 shows an X-axis slider 16x1 of the lens position moving portion 16. The X-axis slider 16x1 is a mechanism for moving the lens holding portion 18 in the X-axis direction, and includes an X-axis gear 16x2, an X-axis motor 16x3, and an X-axis rack 16x4. The X-axis rack 16x4 is connected to the lens holding portion 18, and a gear portion is formed, and this gear portion meshes with the X-axis gear 16x2. The X-axis gear 16x2 also meshes with the gear of the X-axis motor 16x3. When the X-axis motor 16x3 rotates, a rotational driving force is transmitted to the X-axis rack 16x4 via the X-axis gear 16x2, and the rotational driving force causes the X-axis rack 16x4 to move in the X-axis direction. As a result, the lens holding portion 18 connected to the X-axis rack 16x4 moves in the X-axis direction. The X-axis motor 16x3 is controlled based on the measurement control information of the measurement control unit 12, the movement direction of the X-axis can be controlled by the rotation direction, and the movement distance in the X-axis direction can be controlled by the rotation speed. When the X-axis motor 16x3 is a stepping motor, the moving distance in the X-axis direction can be controlled by controlling the number of steps.

As shown in FIG. 4, two wires 18b are stretched over the lens holding portion 18 so as to support the left and right lenses of the spectacles 3.

FIG. 5 shows a Y-axis slider of the lens position moving portion 16. The Y-axis slider is a mechanism for moving the lens holding portion 18 in the Y-axis direction, and includes a Y-axis motor 16y1 and a Y-axis rack 16y2. The Y-axis rack 16y2 is connected to the lens holding portion 18, and a gear portion is formed, and this gear portion directly meshes with the gear of the Y-axis motor 16y1. When the Y-axis motor 16y1 rotates, a rotational driving force is transmitted to the Y-axis rack 16y2, and this rotational driving force causes the Y-axis rack 16y2 to move in the Y-axis direction, and as a result, is connected to the Y-axis rack 16y2. The lens holding portion 18 is moved in the Y-axis direction. The Y-axis motor 16y1 is controlled based on the measurement control information of the measurement control unit 12, the movement direction of the Y-axis can be controlled by the rotation direction, and the movement distance in the Y-axis direction can be controlled by the rotation speed. When the Y-axis motor 16y1 is a stepping motor, the movement distance in the Y-axis direction can be controlled by controlling the number of steps.

FIG. 6 shows a Z-axis slider of the lens position moving portion 16. The Z-axis slider is a mechanism for moving the lens holding portion 18 in the Z-axis direction, and includes a Z-axis motor 16z1, a Z-axis guide pin 16z2, and a Z-axis screw 16z3. The Z-axis screw 16z3 is connected to the lens holding portion 18. The Z-axis screw 16z3 has an uneven thread groove structure. The rotating shaft of the Z-axis motor 16z1 is connected to the Z-axis screw 16z3, and when the Z-axis motor 16z1 rotates, the Z-axis screw 16z3 also rotates, and the thread groove structure causes the nut to move in the Z-axis direction, resulting in this. , The lens holding portion 18 also moves in the Z-axis direction. The Z-axis guide pin 16z2 is for guiding the lens holding portion 18 so as not to move in the Z-axis direction. The Z-axis motor 16z1 is controlled based on the measurement control information of the measurement control unit 12, the movement direction of the Z-axis can be controlled by the rotation direction, and the movement distance in the Z-axis direction can be controlled by the rotation speed. When the Z-axis motor 16z1 is a stepping motor, the movement distance in the Z-axis direction can be controlled by controlling the number of steps.

FIG. 7 shows the Xθ direction moving mechanism of the lens position moving portion 16. The Xθ direction movement mechanism is composed of a pair of arms 16xθ2, an Xθ rack (gear portion) 16xθ4 formed on the upper portion of the arms 16xθ2, two Xθ gears 16xθ3, and an Xθ motor (not shown). The arm 16xθ2 has an arc shape protruding upward and is connected to the lens holding portion 18. The Xθ rack (gear portion) 16xθ4 is engaged with one gear 16xθ3 (upper gear in FIG. 7), one Xθ gear 16xθ3 is engaged with the other Xθ gear 16xθ3, and the other Xθ gear 16xθ3 is Xθ. It meshes with a gear (not shown) mounted on the rotating shaft of the motor. As the Xθ motor rotates, a rotational driving force is transmitted to the pair of arms 16xθ2 via the two Xθ gears 16xθ3 and the Xθ rack 16xθ4, and the rotational driving force causes the pair of arms 16xθ2 to move in the Xθ direction. As a result, the lens holding portion 18 connected to the pair of arms 16xθ2 moves in the Xθ direction. The Xθ motor is controlled based on the measurement control information of the measurement control unit 12, the moving direction in the Xθ direction can be controlled by the rotation direction, and the moving distance in the Xθ direction can be controlled by the rotation speed. When the Xθ motor is a stepping motor, the moving distance in the Xθ direction can be controlled by controlling the number of steps.

FIG. 8 shows the Yθ direction moving mechanism of the lens position moving portion 16. The Yθ direction movement mechanism is composed of a Yθ arm 16yθ1, a Yθ gear 16yθ2, a Yθ motor 16yθ3, and a Yθ rack 16yθ4. One end of the Yθ arm 16yθ1 (lower end in FIG. 8) and one end of the Yθ rack 16yθ4 (lower end in FIG. 8) are connected, and both are rotatably mounted on the device with the same rotation center. The other end (upper end in FIG. 8) of the Yθ arm 16yθ1 is connected to the lens holding portion 18. The gear portion of the Yθ rack 16yθ4 meshes with the Yθ gear 16yθ2, and the Yθ gear 16yθ2 meshes with the gear mounted on the rotation shaft of the Yθ motor 16yθ3. As the Yθ motor 16yθ1 rotates, a rotational driving force is transmitted to the Yθ arm 16yθ1 via the Yθ gear 16yθ2 and the Yθ rack 16yθ4, and the rotational driving force causes the arm 16yθ1 to move in the Yθ direction, resulting in the result. The lens holding portion 18 connected to the Yθ arm 16yθ1 moves in the Yθ direction. The Yθ motor 16yθ3 is controlled based on the measurement control information of the measurement control unit 12, the moving direction in the Yθ direction can be controlled by the rotation direction, and the moving distance in the Yθ direction can be controlled by the rotation speed. When the Yθ motor 16yθ3 is a stepping motor, the moving distance in the Yθ direction can be controlled by controlling the number of steps.

In the movement mechanism in 6 directions such as the X-axis direction of this device, for example, the origin position is detected by a sensor (for example, a photo interrupter) and the cumulative number of steps of the stepping motor is reset, so that the movement is repeated. Positional accuracy can be ensured. Alternatively, if a stepping motor with an encoder is used, the origin position can be controlled by the motor.

FIG. 9 shows the configuration of the optical system of this device. The optical system of this apparatus is a telecentric optical system on both sides, and is composed of a light irradiation unit 17 and a light receiving unit 19. In this device, the light irradiation unit 17 is arranged below the lens holding unit 18, and the light receiving unit 19 is arranged above the lens holding unit 18. The light irradiation unit 17 is composed of an LED substrate 17a on which a plurality of LEDs (light emitting diodes) are mounted, a diffuser plate 17b, and a target sheet 17c. The diffuser plate 17b is arranged above the LED substrate 17a and diffuses. The optotype sheet 17c is arranged on the upper surface of the plate 17b. The light receiving unit 19 is composed of a collimating lens 19a, an optical mirror 19b, and a CMOS (Complementary Metal Oxide Sensor) 19c. In FIG. 9, the alternate long and short dash line indicates the optical axis. As shown in FIG. 9, the light (straight light) emitted from the LED of the LED substrate 17a is diffused by the diffuser plate 17b to become parallel light and is applied to the lens Le, depending on the optical characteristics measured by the lens Le. The measurement light is emitted. The measurement light emitted from the lens Le passes through the collimating lens 19a, is reflected by the optical mirror 19b, is converted into parallel light by the imaging lens 19d, enters the CMOS 19c, and the optical signal of the measurement light is an electric signal by the CMOS 19c. Is converted to. The optotype sheet 17c is, for example, a superposition of a periodic checkered pattern and shades of color (for example, a SIN curve), and is used to measure the optical characteristics of a lens due to the displacement of the optotype on CMOS19c with or without a lens. belongs to.

In the present invention, the optical system of FIG. 9 is an example and does not limit or limit the present invention. In the present invention, the light source of the light irradiation unit 17 may be an LED or a normal lamp. Further, the light source may be a plurality of light sources having different wavelengths. In the present invention, the light receiving element of the light receiving unit 19 is not limited to CMOS, and may be another light receiving element.

10 and 11 show an example of the configuration of the lens holding portion 18. 10 is a perspective view of the lens holding portion 18, FIG. 11A is a plan view of the lens holding portion 18, and FIG. 10B is a sectional view taken in the EE direction. As shown in FIGS. 10 and 11, the lens holding portion 18 has a substantially rectangular formwork 18h, four arms 18f, four sliders 18e, four springs 18g, a cover 18c, a lens restraint 18d, and two synchronous shafts. It is composed of 18i, a nose pad 18a, and two wires 18b. In FIG. 10, the two arrows indicate the left-right direction and the front-back direction. The formwork 18h has a left-right direction and a front-back direction, and four arms 18f are arranged in the formwork 18h in a state of left-right symmetry and front-back symmetry with the center point in the formwork as a reference point. .. One end of each of the two pairs of arms 18f out of the four arms 18f is rotatably arranged at the left end of the formwork 18h, and the other two pairs of arms 18f out of the four arms 18f. Each end is rotatably arranged at the right end of the formwork 18h. Gear portions are formed at one ends of the pair of arms 18f arranged at the left and right ends of the formwork 18h, and mesh with each other. A slider 18e is connected to each other end of each of the four arms 18f in a state where it can move (slide) in the left-right direction. A lens contact portion that comes into contact with the lens is formed at the end portion of the slider 18e in the direction of the center of the formwork. Further, a cylindrical sliding portion 18k is formed at the left-right end of the slider 18e in the formwork 18h, and both ends of the synchronization shaft 18i for synchronizing the pair of arms 18f can slide on the sliding portion 18k. It is inserted like this. Further, springs 18g are arranged at each of the four corners of the formwork 18h, and the four sliding portions 18k are in contact with each other in a urgency state. A cover 18c is arranged above the lens contact portion of the slider 18e. Two wires 18b are stretched in the front-rear direction of the mold 18h to support the round lens Le from below. Two lens holders 18d are arranged at the center of the mold 18h in the left-right direction, respectively, and hold the round lens Le from above. Further, as shown in FIG. 11B, a lens receiver 18j is formed at the lower portion of the mold 18h in a state of facing the lens holder 18d. In FIGS. 10 and 11, since the lens holding portion 18 holds the round lens, the nose pad 18a is in an upright state.

In the lens holding portions 18 of FIGS. 10 and 11, the four arms 18f and the four sliders 18e are symmetrically and symmetrically synchronized by the gear portion formed for each pair of arms 18f and the synchronization shaft 18i. Since each of the four sliders 18e is urged by the four springs 18g, pressure is applied to the lens contact portion of each of the four sliders toward the center point of the formwork 18h. There is. Therefore, the round lens Le is automatically held by the lens holding portion 18 in a state where the center point of the mold 18h and the center point of the round lens Le are coaxial (centering).

[Embodiment 3]
FIG. 12 shows the configuration of the spectacle lens of the progressive lens. The plan view of the figure (A) shows the ball lens before processing, the plan view of the figure (B) shows the lens processed and attached to the spectacle frame, and the LH of the figure (B) is The left side when wearing spectacles is shown, and RH indicates the right side when wearing spectacles. As shown in the figure, two alignment marks are engraved on the lens, the axis passing through the two alignment marks is the X-axis of the lens, and the midpoint between the two alignment marks is on the X-axis of the lens. , Becomes the optical center point. Further, the axis perpendicular to the X axis at the optical center of the lens is the Y axis of the lens. For example, two alignment marks and three points (marking points) on the front surface of the lens (opposite to the eyeball side when wearing spectacles) corresponding to the optical center are marked.

In the present invention, the marking points that strike the marking points are the optical center and two alignment marks in the case of a progressive lens, the optical center and two points indicating the astigmatic axis in the case of a single focus lens, and the like. There are an eye point, a prism reference point, a shafting point, and the like.

[Embodiment 4]
FIG. 13 shows an example of the marking mechanism unit 20. In the stamping mechanism portion 20 shown in the figure, the stamping device 203 is attached to one end of the arm 202, and the stamping device moving portion 201 is connected to the other end of the arm 202. The stamping device moving unit 201 can rotate about the Z axis as the center of rotation, and as a result, the stamping device 203 can be moved in the Zθ direction. In the marking mechanism unit 20 shown in the figure, when measuring the optical characteristics of the lens Le, the marking device 203 is moved out of the measurement area and put into a standby state. Then, at the time of stamping, the stamping device moving unit 201 rotates around the Z axis, so that the stamping device 203 moves in the Zθ direction, and the stamping pen 2032 is positioned on the optical axis of the measurement area. Will come to do. In this state, the lens position moving portion (not shown in the figure) moves the lens Le in at least one direction of the X direction (X slide) and the Y direction (Y slide), and the marking point of the lens Le (not shown). Position the optical center point (two alignment marks) on the optical axis. Then, in the first lens optical characteristic measuring device of the present invention, the stamping device 203 is moved (descended) in the Z-axis direction by the stamping device moving unit 201, and the stamping point portion of the lens Le and the stamping pen 2032 are moved. Make contact with the pen tip of and hit the mark. Further, in the second lens optical characteristic measuring device of the present invention, the lens Le is raised in the Z direction (Z slide) by the lens position moving portion, and the marking point of the lens Le and the pen tip of the marking pen 2032 are used. Contact and hit the mark. When the printing point is completed and the optical characteristics of the lens Le are measured, the printing point device moving unit 201 rotates, so that the printing point device 203 moves out of the measurement area and enters the standby state again. For example, when marking a mark on the optical center of a progressive lens and two alignment marks, the mark pen 2032 is located on the optical axis, and the lens position moving portion moves the lens Le in the X-axis direction and the Y-axis direction. Thereby, for example, the optical center and the two alignment marks are sequentially positioned on the optical axis, and the marking device and / or the lens Le is moved in the Z-axis direction at each marking point, so that the lens Le is moved. After contacting the pen tip of the stamp pen 2032, the lens Le is separated from the pen tip to strike a stamp.

FIG. 14 shows a mechanism by which the stamping device moving unit 201 can move in the Z direction to move the stamping device 203 up and down. As described above, the stamping device moving unit 201 can rotate the arm 202 by rotating the stamping device moving unit 201. As shown in the figure, the stamping device moving unit 201 is connected to the guide rail 204 and can move in the Z direction according to the guide rail 204. As a result, the stamping device 203 can be moved in the vertical direction. For example, by lowering the stamping device 203 and bringing the pen tip 2031 of the stamping pen 2032 into contact with the stamping point of the lens Le, the stamping point can be moved. You can hit. In this case, the lens Le may be raised in the Z direction.

[Embodiment 5]
FIG. 15 shows another example of the marking mechanism unit 20. The stamping point mechanism unit 20 of this example is a mechanism capable of hitting three stamping points at the same time. As shown in the figure, the stamping mechanism portion 20 of this example is arranged at one end of the arm 202 in a state where three stamping devices 203 are arranged in a straight line at equal intervals. Further, the other end of the arm 202 is bent in an L shape and is connected to one end of the horizontal axis 2017b. The other end of the horizontal axis 2017b is connected to the L-shaped knob 2016. The horizontal axis 2017b is rotatably supported by the bracket 2015, is urged counterclockwise by a spring (not shown), and can be manually rotated by the knob 2016. As a result, the three marking devices 203 can be in both the horizontal state and the vertical state (standing state axis). Further, the bracket 2015 is connected to the upper rail 2014b, and the upper rail 2014b is connected to the lower rail 2014a in a vertically slidable state. Further, the bracket 2015 is urged upward by a spring (not shown). The lower rail 2014a is connected to the slider 2013, and the lower end of the vertical axis 2017a is connected to the slider 2013. A bevel gear 2012b is mounted on the upper end side of the vertical axis 2017a, the bevel gear 2012a is engaged with the bevel gear 2012b, and the motor 2011 is connected to the bevel gear 2012a. The rotational drive of the motor 2011 is transmitted to the vertical axis 2017a via the two bevel gears 2012a and 2012b, and as a result, the slider 2013 rotates about the Z axis as the rotation center. By rotating the slider 2013, the three marking devices 203 can be moved in the Zθ direction via the bracket 2015 and the arm 202.

As shown in FIG. 16, the pen tip 2031 of the marking pen 2032 of the three marking devices 203 corresponds to the three marking points of the lens Le (for example, the optical center point and the two alignment marks). They are lined up on a straight line at regular intervals. Then, as shown in FIG. 15, the rotation drive of the motor 2011 moves the three marking devices to the measurement area, and the operation of the knob 2016 causes the marking device 203 to be in the vertical state, and the pen of the center marking pen 2032. The tip 2031 is positioned on the optical axis. Further, as shown in the figure, the lens position moving portion (not shown) moves the lens Le to the measurement area so that the optical center point is located on the optical axis. As a result, each pen tip 2031 of the three marking pen 2032 is in a state of facing the three marking points (optical center point, two alignment marks) of the lens Le. In this state, by pushing the knob 2016 downward, the bracket 2015 is lowered, and as a result, the pen tips 2031 of the three stamp pen 2032 come into contact with the three stamp points of the lens Le. It will be marked. When the operation of pushing downward of the knob 2016 is released after the marking point is completed, the bracket 2015 is raised by the upward urging of the spring (not shown), and as a result, each pen tip 2031 of the three marking point pens 2032 is raised. Is separated from the three marking points of the lens Le. In this example, the three marking devices 203 are rotated around the center marking pen, but the present invention is not limited to this, and the rotation axes of the three marking devices can be arbitrarily set. ..

[Embodiment 6]
FIG. 17 shows an example of the marking device 203. This marking device is a device that can reduce the increase in pressing pressure on the lens of the pen tip even if the pen tip in contact with the lens is pushed deeply by combining two springs with different spring constants. Is. As shown in the figure, the stamping device 203 of this example is composed of a stamping pen 2032, a storage container 2034, and a spring 2033a and a spring 2033b. The stamp pen 2032 is housed in the storage container 2034 in a state where the pen tip 2031 is exposed to the outside. Further, when the pen tip 2031 comes into contact with the marking point of the lens by the springs 2033a and 2033b, the pen tip 2031 is urged toward the lens side. The springs 2033a and 2033b are arranged in series along the advancing / retreating direction of the stamp pen 2032. The spring constant when the spring is compressed is smaller for the spring 2033b located on the side opposite to the lens side than for the spring 2033a located on the lens side.

The graph of FIG. 18 shows the relationship between the displacement amount (y) of the pen tip 2031 of the stamp pen 2032 and the pushing load (F) of the pen tip 2031 when it comes into contact with the lens. As shown in the figure, when the pen tip 2031 comes into contact with the lens and retracts in the direction opposite to the lens side, the spring 2033a on the lens side contracts, and as the moving distance (displacement amount) of the pen tip 2031 retracts increases, The pushing load applied to the pen tip 2031 also increases proportionally. When the retracting moving distance (displacement amount) of the pen tip 2031 exceeds the contraction limit of the spring 2033a (it does not contract any more), the spring 2033b on the opposite side to the lens side contracts, but the spring constant of the spring 2033b is the spring. Since it is smaller than 2033b, the increase in the pushing load becomes moderate even if the moving distance (displacement amount) of the pen tip 2031 retreating is large. As a result, even if the pen tip 2031 comes into contact with the lens and is pushed deeply, the pressure of the pen tip 2031 does not increase so much, so that the displacement of the pen tip 2031 on the lens surface can be prevented, and as a result, an accurate marking point can be prevented. It becomes possible to hit. When the stamping mechanism is automated and the stamping point is automatically stamped, the position of the stamping point on the upper surface of the lens in the Z-axis direction is unknown, so the moving distance of the stamping device 203 in the Z-axis direction is lengthened. As a result, it is necessary to assume a large pushing amount (stroke amount) of the pen tip (overstroke), and it is necessary to reduce the repulsive force of the spring when the pushing amount of the pen tip becomes large. .. On the other hand, when striking a marking point, the pressing pressure of the pen tip on the upper surface of the lens needs to be strong to some extent. However, if the pressing pressure is excessive, the pen tip is crushed, the durability is reduced, the size of the stamp point is increased, and the position reading accuracy is reduced. The stamping device of the present invention can cope with such a situation, and when striking a stamping point, the pressing pressure of the pen tip on the upper surface of the lens is set to a required size, and even in the case of overstroke, the lens is used. It is possible to reduce the increase in the pressing pressure of the pen tip applied to the upper surface, which is useful for an automated marking mechanism.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. Various modifications can be made to the configuration of the present invention that can be understood by those skilled in the art within the scope of the present invention.

As described above, according to the present invention, it is possible to prevent the lens or the stamping pen from being displaced at the time of marking, and as a result, it is possible to accurately strike the stamping point. The present invention is useful for measuring the optical characteristics of a spectacle lens, for example, in a spectacle store or the like.

1 Lens optical characteristic measurement device 11 Operation input unit 12 Measurement control unit 13 Measurement calculation unit 14 Storage unit 15 Output unit 16 Lens position movement unit 17 Light irradiation unit 18 Lens holding unit 19 Light receiving unit 20 Marking point mechanism unit 201 Marking point device movement Part 202 Arm 203 Marking device 2032 Marking point pen Le lens

Claims (8)

Includes operation input unit, optical system, lens holding unit, lens position moving unit, stamp mechanism unit, measurement control unit, measurement calculation unit, and output unit.
The operation input unit can input operation information including measurement contents to the measurement control unit.
The optical system includes a light irradiation unit and a light receiving unit.
The light irradiation unit irradiates the lens to be measured with light.
The light receiving unit receives the measurement light emitted from the lens irradiated with the light, and receives the measurement light.
A measurement area and an optical axis due to light irradiation are formed between the light irradiation unit and the light receiving unit.
The lens is a spectacle lens.
The lens is a lens before processing, a lens after processing, or a lens installed on the frame of spectacles after processing.
The lens holding portion holds the lens and holds the lens.
The lens position moving portion is connected to the lens holding portion and can move the position of the lens in the X-axis direction and the Y-axis direction.
The X-axis direction and the Y-axis direction are orthogonal to each other on the same plane and orthogonal to the optical axis direction.
The stamping mechanism portion includes a stamping device, an arm, and a stamping device moving portion.
The stamping device is attached to one end of the arm, and the stamping device moving portion is connected to the other end of the arm.
The stamping device includes a stamping pen, the stamping pen can apply a stamping point to the lens, and the stamping pen is one.
The stamping device moving unit can move the stamping device in a direction including the Z-axis direction by moving the arm.
The Z-axis direction is a direction parallel to the optical axis.
The measurement control unit can control the position movement of the lens by the lens position moving unit and the movement of the stamping device by the stamping device moving unit.
The measurement calculation unit can calculate the lens optical characteristics based on the optical signal received by the light receiving unit.
The output unit can output the lens optical characteristics and can output the lens optical characteristics.
By controlling the stamping device moving unit, the measurement control unit moves the stamping device into the measurement area at the time of marking on the lens, and at the time of measuring the optical characteristics of the lens, the marking is performed. Move the point device out of the measurement area and move it out of the measurement area.
At the time of the stamp,
By controlling the stamping device moving unit, the measurement control unit can move the stamping device so that the stamping pen is located on the optical axis of the measuring area, and the lens. By controlling the position moving portion, it is possible to move the lens in at least one of the X-axis direction and the Y-axis direction to position the mark point portion for striking the mark point of the lens on the optical axis. can be,
By controlling the stamping device moving unit, the measurement control unit can bring the pen tip of the stamping pen into contact with the stamping point portion of the lens to mark.
Lens optical characteristic measuring device. Includes operation input unit, optical system, lens holding unit, lens position moving unit, stamp mechanism unit, measurement control unit, measurement calculation unit, and output unit.
The operation input unit can input operation information including measurement contents to the measurement control unit.
The optical system includes a light irradiation unit and a light receiving unit.
The light irradiation unit irradiates the lens to be measured with light.
The light receiving unit receives the measurement light emitted from the lens irradiated with the light, and receives the measurement light.
A measurement area and an optical axis due to light irradiation are formed between the light irradiation unit and the light receiving unit.
The lens is a spectacle lens.
The lens is a lens before processing, a lens after processing, or a lens installed on the frame of spectacles after processing.
The lens holding portion holds the lens and holds the lens.
The lens position moving portion is connected to the lens holding portion and can move the position of the lens in the X-axis direction, the Y-axis direction, and the Z-axis direction.
The X-axis direction and the Y-axis direction are orthogonal to each other on the same plane and orthogonal to the optical axis direction.
The Z-axis direction is a direction parallel to the optical axis.
The stamping mechanism portion includes a stamping device, an arm, and a stamping device moving portion.
The stamping device is attached to one end of the arm, and the stamping device moving portion is connected to the other end of the arm.
The stamping device includes a stamping pen, and the stamping pen can apply a stamping point to the lens.
The marking device moving unit can move the marking device by moving the arm, and the measurement control unit can move the position of the lens by the lens position moving unit and the marking device moving unit. It is possible to control the movement of the marking device by
The measurement calculation unit can calculate the lens optical characteristics based on the optical signal received by the light receiving unit.
The output unit can output the lens optical characteristics and can output the lens optical characteristics.
By controlling the stamping device moving unit, the measurement control unit moves the stamping device into the measurement area at the time of marking on the lens, and at the time of measuring the optical characteristics of the lens, the marking is performed. Move the point device out of the measurement area and move it out of the measurement area.
At the time of the stamp,
By controlling the stamping device moving unit, the measurement control unit can move the stamping device so that the stamping pen is located on the optical axis of the measuring area, and the lens. By controlling the position moving portion, it is possible to move the lens in at least one of the X-axis direction and the Y-axis direction to position the mark point portion for striking the mark point of the lens on the optical axis. can be,
The measurement control unit controls the lens position moving unit, moves the lens toward the mark point pen on the optical axis, and causes the mark point of the lens and the pen tip of the mark point pen. It is possible to make contact with and mark,
Lens optical characteristic measuring device. The lens has a marking point at the optical center and two marking points arranged on a straight line passing through the optical center.
The marking device includes three nibs and
The three pen tips are arranged in a linearly aligned state so as to correspond to the marking point at the optical center and the two marking points, and the pen tip in the middle is the marking point at the optical center. Corresponding to the location, the two pen tips on both sides correspond to the two marking points.
The stamping device moving unit can rotate the three pen tips with the center pen tip as the rotation axis.
By controlling the lens position moving unit, the measurement control unit moves the lens in at least one direction in the X-axis direction and the Y-axis direction, and arranges the optical center of the lens on the optical axis. It is possible and
By controlling the stamping device moving unit, the measurement control unit can arrange the pen tip in the middle of the stamping device on the optical axis, and rotates the three pen tips. It is possible to match the inclination of the straight line connecting the pen tips on both sides with the inclination of the straight line connecting the two marking points of the lens.
The measurement control unit controls at least one of the marking device moving section and the lens position moving section to move the stamping device toward the lens on the optical axis, and the light of the lens. At least one of the movements toward the marking point pen on the axis is carried out, and the three pen tips can be brought into contact with the three marking points of the lens.
The lens optical characteristic measuring apparatus according to claim 2. The stamping device moving portion has a rotation axis parallel to the Z-axis direction.
The stamping device moving unit can rotate the stamping device mounted on one end of the arm on a circumference centered on the rotation axis.
The lens optical characteristic measuring apparatus according to any one of claims 1 to 3. The stamping device moving unit can move the arm back and forth on a straight line, and the moving of the arm back and forth on the straight line allows the stamping device to move back and forth on the straight line.
The lens optical characteristic measuring apparatus according to any one of claims 1 to 3. There are multiple marking points on the lens,
By controlling the lens position moving unit, the measurement control unit moves the lens in at least one direction in the X-axis direction and the Y-axis direction after the end of the marking point to the one marking point location. Then, another marking point of the lens is positioned on the optical axis.
The measurement control unit controls at least one of the lens position moving unit and the stamping device moving unit.
The pen tip of the stamping pen and another stamping point of the lens are brought into contact with each other for marking.
The lens optical characteristic measuring apparatus according to any one of claims 1 to 5. The marking device further comprises a containment container and two or more spring members.
The stamped pen is housed in the storage container with the pen tip exposed to the outside, and is freely retractable.
When the pen tip comes into contact with the marking point of the lens by the two or more spring members, the pen tip is urged toward the lens side.
The two or more spring members are arranged in series along the advancing / retreating direction.
The spring constant when the two or more springs are compressed is larger in the springs located on the lens side among the springs adjacent to each other in the advancing / retreating direction.
The lens optical characteristic measuring apparatus according to any one of claims 1 to 6. Includes stamp pen, containment container, and two or more spring members
The stamp pen is housed in the storage container with the tip of the pen extended to the outside.
When the pen tip comes into contact with the marking point of the lens by the two or more spring members, the pen tip is urged toward the lens side.
The two or more spring members are arranged in series along the advancing / retreating direction.
The spring constant when the two or more springs are compressed is larger in the springs located on the lens side among the springs adjacent to each other in the advancing / retreating direction.
Stamping device.

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