JP6830834B2 - Ophthalmic equipment - Google Patents

Description

The present invention relates to an ophthalmic apparatus for acquiring eye characteristics of an eye to be inspected.

In ophthalmology, various ophthalmic characteristics such as optical power, intraocular pressure, and number of corneal endothelial cells of the eye to be inspected are acquired (measurement, imaging, observation, etc.) by an ophthalmology apparatus. In this case, from the viewpoint of the accuracy, accuracy, image quality, and the like of the acquired eye characteristics, the alignment, that is, the alignment of the measurement unit (eye characteristics acquisition unit) of the ophthalmic apparatus with respect to the eye to be inspected is extremely important. For this reason, the ophthalmic apparatus is provided with a configuration in which alignment adjustment is performed by moving the measurement unit with respect to the base. For example, there is known an ophthalmic apparatus that manually aligns a measurement unit with respect to an eye to be inspected by moving the measurement unit by a horizontal movement operation (manual movement operation) of an operation lever by an operator.

Further, especially in recent years, the position of the eye to be inspected is detected, and the measurement unit is moved by electric drive based on the position detection result, so that the measurement unit is automatically aligned with the eye to be inspected (hereinafter referred to as fully automatic alignment). , Simply called auto-alignment) is well known.

At this time, when acquiring the eye characteristics of the eye to be inspected, such as abnormalities in the cornea or iris or large nystagmus, manual alignment by the operator is required. In this case, for example, the measurement unit is aligned with the eye to be inspected by driving the electric drive unit to move the measurement unit in response to the tilting operation of the operator with respect to the operation lever.

However, when the measurement unit is manually aligned with the eye to be inspected by the operation lever, it is generally performed by the horizontal movement operation instead of the tilt operation as described above. For this reason, in an ophthalmic apparatus having an auto-alignment function, the operation method for manually aligning the measurement unit with respect to the eye to be inspected is different from the general operation method (horizontal movement operation), and the operator (particularly skilled operation). There is a risk of giving a sense of discomfort to the person).

Patent Document 1 includes a non-electric movable unit that directly moves a measurement unit by a manual movement operation by an operator (inspector), and an electric drive unit that can automatically move the measurement unit. The device is described. In the ophthalmic apparatus of Patent Document 1, as the alignment of the measurement unit with respect to the eye to be inspected, the manual alignment performed by moving the movable part by a manual movement operation (horizontal movement operation of the operation lever) and the measurement unit are automatically performed by the drive unit. Auto-alignment performed by moving can be selectively performed.

Patent Document 2 describes an ophthalmic apparatus having a measuring unit, a manually movable unit on which the measuring unit is mounted, and an electric drive unit on which the manually movable unit is mounted. In the ophthalmic apparatus of Patent Document 2, as the alignment of the measurement unit with respect to the eye to be inspected, a manual alignment performed by moving the manually movable unit relative to the electric drive unit by a manual movement operation (horizontal movement operation of the operation lever) is performed. Auto alignment, which is performed by automatically moving the measurement unit by the electric drive unit, can be selectively performed.

JP-A-2009-2011981 JP-A-2015-21781

In the ophthalmic apparatus described in Patent Document 1 and Patent Document 2, the measurement unit is moved by a manual movement operation, and the measurement unit is moved by driving a drive source such as an electric drive unit and an electric drive unit. It is necessary to provide the configuration separately. For this reason, the structure of the ophthalmic apparatus becomes complicated, and problems such as an increase in manufacturing cost, an increase in size, and an increase in weight of the ophthalmic apparatus occur.

The present invention has been made in view of such circumstances, and it is possible to carry out the movement of the eye characteristic acquisition unit by a manual movement operation and the movement of the eye characteristic acquisition unit by driving the drive source with a simple configuration. It is an object of the present invention to provide an ophthalmic apparatus.

An ophthalmic apparatus for achieving the object of the present invention is provided on the base, an eye characteristic acquisition unit that is held movably in a predetermined axial direction with respect to the base and acquires the eye characteristics of the eye to be inspected, and the base. , A drive source that moves the moving body in the axial direction, a connected state that moves the eye characteristic acquisition unit in the axial direction integrally with the moving body as the moving body moves by the drive source, and an axis of the eye characteristic acquisition unit with respect to the moving body. It is provided with a connection release state that allows relative movement in the direction and a connection portion that can be switched to.

According to this ophthalmic apparatus, it is not necessary to separately provide a configuration in which the eye characteristic acquisition unit is moved by being driven by a drive source and a configuration in which the eye characteristic acquisition unit is moved by manual drive by an operator, and a common configuration is used. can do.

The ophthalmic apparatus according to another aspect of the present invention includes a switching operation unit that performs a switching operation for switching the connecting unit from one of the connected state and the disconnected state to the other state, and a switching operation performed by the switching operation unit. It is provided with a connection control unit that switches the connection unit from one state to the other state accordingly. Thereby, the movement of the eye characteristic acquisition unit driven by the drive source and the movement of the eye characteristic acquisition unit manually driven by the operator can be switched by the switching operation.

In the ophthalmic apparatus according to another aspect of the present invention, one of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the connecting portion and the connected portion are connected to each other. When the other moves in the axial direction integrally with the moving body and the connecting part is switched to the unconnected state by the connecting control unit, the drive of the drive source is controlled to move the moving body to a predetermined retracted position. A first movement control unit and an alignment operation unit that manually aligns one position with the other position when the connection unit is switched to the disengagement state by the connection control unit are provided and connected. When the alignment operation is performed by the alignment operation unit, the control unit switches the connection unit from the disconnection state to the connection state according to the switching operation. As a result, the configuration in which the eye characteristic acquisition unit is moved by being driven by the drive source and the configuration in which the eye characteristic acquisition unit is moved by manual drive by the operator can be made common.

The ophthalmic apparatus according to another aspect of the present invention includes a relative position detection unit that detects a relative position between one and the other, and the connection control unit aligns one with respect to the other based on the detection result of the relative position detection unit. When it is determined that the above is completed, the connecting portion is switched from the disconnected state to the connected state according to the switching operation. As a result, it is possible to prevent the connecting portion from being accidentally switched to the connected state when the alignment is not completed.

In the ophthalmic apparatus according to another aspect of the present invention, one of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the connecting portion and the connected portion are connected to each other. When the other moves in the axial direction integrally with the moving body and is provided with a relative position detection unit that detects the relative position between one and the other, and the connection control unit switches the connection from the connection state to the disconnect state, A second movement control unit that controls the drive of the drive source based on the detection result of the relative position detection unit and causes the other to follow and move with respect to one is provided. As a result, switching from the movement of the eye characteristic acquisition unit manually driven by the operator to the movement of the eye characteristic acquisition unit driven by the drive source can be automatically performed in a short time.

In the ophthalmic apparatus according to another aspect of the present invention, one of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the connecting portion and the connected portion are connected to each other. A switching operation was performed in the switching operation unit to switch between the relative position detection unit that detects the relative position between one and the other when the other moves in the axial direction integrally with the moving body and the connection unit in the disconnected state. In some cases, a third movement control unit that controls the drive of the drive source and adjusts the other position to one position based on the detection result of the relative position detection unit is provided, and the connection control unit is the other with respect to one. When the alignment is performed by the third movement control unit, the connection unit is switched from the disconnection state to the connection state. As a result, switching from the movement of the eye characteristic acquisition unit manually driven by the operator to the movement of the eye characteristic acquisition unit driven by the drive source can be automatically performed in a short time.

In the ophthalmic apparatus according to another aspect of the present invention, the connected portion is a pin hole, and the connecting portion inserts the pin into the pin hole in the connected state and pulls out the pin from the pin hole in the disconnected state. It is a department.

In the ophthalmic apparatus according to another aspect of the present invention, the connected portion is a magnetic material.
The ophthalmic apparatus according to any one of claims 3 to 6, wherein the connecting portion is an electromagnet that generates an attractive force due to magnetism with a magnetic material in a connected state and stops the generation of an attractive force in a disconnected state.

In the ophthalmic apparatus according to another aspect of the present invention, the connecting portion is a link mechanism having a plurality of link members oscillatingly connected to each other via joints, and one end thereof is integrated with the eye characteristic acquisition portion. It is a link mechanism that moves in the axial direction and the other end moves in the axial direction integrally with the moving body. The angle of the joint is based on the detection result of the angle detection unit that detects the angle of the joint and the angle detection unit in the connected state. Is provided with a link mechanism drive unit that fixes the joint at a predetermined reference angle and releases the joint from being fixed in the disconnected state.

The ophthalmic apparatus of the present invention can perform the movement of the eye characteristic acquisition unit by a manual movement operation and the movement of the eye characteristic acquisition unit by driving the drive source with a simple configuration.

It is a side view of the ophthalmic apparatus of 1st Embodiment. It is sectional drawing which follows line 2-2 in FIG. It is explanatory drawing for demonstrating the pin insertion / removal part in the connected state. It is explanatory drawing for demonstrating the pin insertion / removal part in the disconnection state. It is a block diagram which shows the electrical structure of the control part of 1st Embodiment. It is explanatory drawing for demonstrating the switching control of the pin insertion / removal part from the connection release state to the connection state by the connection control part. It is a flowchart which shows the flow of the measurement of the eye characteristic of the eye to be examined in the manual drive alignment mode by the ophthalmic apparatus of 1st Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the electric drive alignment mode or the like by the ophthalmic apparatus of 1st Embodiment. It is a block diagram which shows the electrical structure of the control part of 2nd Embodiment. It is explanatory drawing for demonstrating the control of the movement control part and the connection control part of 2nd Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the manual drive alignment mode by the ophthalmic apparatus of 2nd Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the electric drive alignment mode or the like by the ophthalmic apparatus of 2nd Embodiment. It is a block diagram which shows the electrical structure of the control part of 3rd Embodiment. It is explanatory drawing for demonstrating the control of the movement control part and the connection control part of 3rd Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of an eye to be examined in the manual drive alignment mode by the ophthalmic apparatus of 3rd Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the electric drive alignment mode, etc. by the ophthalmic apparatus of 3rd Embodiment. It is explanatory drawing for demonstrating the structure of the ophthalmic apparatus of 4th Embodiment, particularly electromagnet. It is explanatory drawing for demonstrating the control of the movement control part and the connection control part of 4th Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the electric drive alignment mode or the like by the ophthalmic apparatus of 4th Embodiment. It is explanatory drawing for demonstrating the structure of the ophthalmic apparatus of 5th Embodiment, particularly the link mechanism. It is explanatory drawing for demonstrating the link mechanism of the connected state. It is explanatory drawing for demonstrating the link mechanism in the disconnected state. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the manual drive alignment mode by the ophthalmic apparatus of 5th Embodiment. It is a flowchart which shows the flow of measurement of the eye characteristic of the eye to be examined in the electric drive alignment mode or the like by the ophthalmic apparatus of 5th Embodiment. It is an enlarged view of the housing and the nut of the ophthalmic apparatus of the sixth embodiment. It is a block diagram which shows the electrical structure of the control part of 6th Embodiment.

[Structure of Ophthalmic Device of First Embodiment]
FIG. 1 is a side view of the ophthalmic apparatus 10 according to the first embodiment of the present invention. The ophthalmic apparatus 10 measures, observes, photographs, and the like (hereinafter, simply abbreviated as "measurement") various eye characteristics of the subject's eye E to be examined. Examples of such an ophthalmic apparatus 10 include a fundus camera, an OCT (optical coherence tomography), an SLO (Scanning Laser Ophthalmoscope), an axial length meter, a slit lamp, a reflex meter, a keratometer, a tonometer, a specular microscope, and a multifunction device thereof. Etc. are given as an example.

Here, the X-axis direction in the figure is the left-right direction with respect to the subject (the eye width direction of the subject E), the Y-axis direction is the vertical direction, and the Z-axis direction is before approaching the subject. It is a front-back direction (also called a working distance direction) parallel to the direction and the rear direction away from the subject. Therefore, the Z-axis direction and the X-axis direction are included in the horizontal direction.

As shown in FIG. 1, the ophthalmic apparatus 10 includes a main body base 12 (also referred to as a base), a face support unit 13, an electric drive unit 14, and a measurement unit 15 corresponding to the eye characteristic acquisition unit of the present invention. A monitor 16 and an operation lever 17 corresponding to the alignment operation unit of the present invention are provided. A face support portion 13 is provided at the end of the main body base 12 on the front side (subject side) in the Z-axis direction, and an electric drive portion 14 is provided on the upper surface of the main body base 12.

The face support portion 13 has a chin rest and a forehead pad (not shown) whose position can be adjusted in the Y-axis direction, and supports the face of the subject during measurement by the ophthalmic apparatus 10.

The electric drive unit 14 holds a measurement unit 15 described later on the main body base 12 so as to be movable in each axial direction of the XYZ axes. Under the control of the control unit 65 (see FIG. 5) described later, the electric drive unit 14 electrically drives the measurement unit 15 with respect to the main body base 12 in each axial direction of the XYZ axes to perform an eye examination. Align the measuring unit 15 with respect to E. Further, the electric drive unit 14 can select manual drive in addition to electric drive, and when manual drive is selected, the operator is in the horizontal direction (Z-axis direction and X-axis direction) with respect to the operation lever 17. Allows the measuring unit 15 to move horizontally in response to the push-pull operation.

The measurement unit 15 may be moved, for example, when the measurement unit 15 is moved to a position where an image of the anterior segment of the eye to be inspected E can be acquired, or the measurement unit 15 is moved when the eye to be inspected E is switched between left and right. Coarse movement (high-speed movement) and fine movement (low-speed movement) when performing precise alignment in a narrow range are included.

In the ophthalmic apparatus 10 of the present embodiment, it is possible to select between auto-alignment in which alignment is automatically performed and manual alignment in which alignment is performed by manual operation (manual operation). Further, the manual alignment includes an electric drive alignment performed by electrically driving the electric drive unit 14 and a manual drive alignment performed by an operator manually driving the electric drive unit 14.

The electric drive unit 14 includes a Z-axis base 21, a Z-axis drive unit 22, an X-axis base 23, an X-axis drive unit 24, and a Y-axis drive unit 25.

The Z-axis base 21 is provided above the Z-axis drive unit 22 described later, which is provided on the main body base 12 (corresponding to the base of the present invention), and is provided in the Z-axis direction by the Z-axis drive unit 22. It is held so that it can be moved. Two sets of a pair of bearings 27 arranged side by side in the Z-axis direction are provided on the lower surface of the Z-axis base 21 (see FIG. 2). The two pairs of bearings 27 are provided at intervals in the X-axis direction (see FIG. 2). Further, the pair of bearings 27 of the two sets are each formed with through holes (not shown) parallel to the Z-axis direction.

Further, on the lower surface side of the Z-axis base 21, a housing 28 is arranged so as to be located between two pairs of bearings 27 in the X-axis direction (see FIG. 2). The housing 28 is a member independent of the Z-axis base 21, is connected to the Z-axis base 21 via a pin insertion / removal portion 6Z (see FIG. 3) described later, and is connected to the Z-axis base 21 via the Z-axis base 21 and the like. It is indirectly connected to the measuring unit 15.

The housing 28 has a shape that can be moved in the Z-axis direction integrally with the nut 32 by engaging with the nut 32 described later, for example, a shape that sandwiches the nut 32 in the Z-axis direction from above the nut 32. Therefore, the housing 28 moves in the Z-axis direction integrally with the nut 32 as the nut 32 moves in the Z-axis direction. When the housing 28 is connected to the Z-axis base 21 via the pin insertion / removal portion 6Z (see FIG. 3), the Z-axis base 21, the X-axis drive unit 24, as the housing 28 moves in the Z-axis direction, The X-axis base 23, the Y-axis drive unit 25, and the measurement unit 15 move integrally in the Z-axis direction.

FIG. 2 is a cross-sectional view (top view of the Z-axis drive unit 22) along line 2-2 in FIG. As shown in FIGS. 1 and 2, the Z-axis drive unit 22 is provided on the main body base 12. The Z-axis drive unit 22 includes two Z-guide shafts 30 parallel to the Z-axis direction, two sets of a pair of shaft fixing portions 31, a nut 32, a feed screw 33, and a Z-axis motor 34. Be prepared. The nut 32, together with the housing 28 described above, corresponds to the moving body of the present invention.

The two Z guide shafts 30 are inserted into through holes of two pairs of bearings 27, respectively. Both ends of each Z guide shaft 30 are held by two pairs of shaft fixing portions 31 provided on the upper surface of the main body base 12. As a result, the Z-axis base 21 is held movably in the Z-axis direction by the Z guide shaft 30 via the pair of bearings 27, that is, is held movably in the Z-axis direction on the main body base 12.

The nut 32 is engaged with the housing 28 described above, that is, is sandwiched by the housing 28 from above in the Z-axis direction. At this time, the nut 32 is engaged with the housing 28 in a state in which it cannot rotate relative to the housing 28 about the Z axis.

The feed screw 33 penetrates the housing 28 described above in the Z-axis direction in a posture parallel to the Z-axis direction, and is screwed into the nut 32 engaged with the housing 28. A Z-axis motor 34 provided on the main body base 12 is connected to one end of the feed screw 33. The feed screw 33 constitutes the drive source of the present invention together with the Z-axis motor 34 described later.

The Z-axis motor 34 rotates and drives the feed screw 33 under the control of the control unit 65 (see FIG. 5) described later. By the rotational drive of the feed screw 33, the housing 28 can be moved in the Z-axis direction via the nut 32, and the Z-axis base 21 is further moved in the Z-axis direction via the housing 28 and the pin insertion / extraction portion 6Z (see FIG. 3). Can be moved to. As a result, the X-axis drive unit 24, the X-axis base 23, the Y-axis drive unit 25, and the measurement unit 15 provided on the Z-axis base 21 can be integrally moved in the Z-axis direction. That is, the measurement unit 15 and the like can be moved relative to the main body base 12 in the Z-axis direction.

Further, by controlling the rotation direction of the feed screw 33 by the Z-axis motor 34, the moving direction of the measuring unit 15 or the like in the Z-axis direction can be controlled, and by controlling the rotation speed of the feed screw 33, the measuring unit 15 or the like can be controlled. The movement speed in the Z-axis direction can be controlled.

The X-axis base 23 is provided above the X-axis drive unit 24 provided on the Z-axis base 21, which will be described later, and is held movably in the X-axis direction by the X-axis drive unit 24. .. Two pairs of bearings 37 and a housing 38 are provided on the lower surface of the X-axis base 23. The pair of bearings 37 and the housing 38 have a structure (arrangement) in which the pair of bearings 27 and the housing 28 described above are each rotated by 90 degrees around the Y axis.

The housing 38 is a member independent of the X-axis base 23, is connected to the X-axis base 23 via a pin insertion / removal portion 6X (see FIG. 5) described later, and is further measured via the X-axis base 23 and the like. It is indirectly connected to the unit 15. The housing 38 engages with a nut 42, which will be described later, and moves in the X-axis direction integrally with the nut 42 as the nut 42 moves in the X-axis direction. When the housing 38 is connected to the X-axis base 23 via the pin insertion / extraction portion 6X, the X-axis base 23, the Y-axis drive unit 25, and the measurement unit 15 move as the housing 38 moves in the X-axis direction. It moves integrally in the X-axis direction.

The X-axis drive unit 24 is provided on the Z-axis base 21 (corresponding to the base of the present invention). The X-axis drive unit 24 includes two X-guide shafts 40 parallel to the X-axis direction, two pairs of shaft fixing portions 41, a nut 42, a feed screw 43, and an X-axis motor 44. Be prepared. The nut 42 corresponds to the moving body of the present invention together with the housing 38 described above, and the feed screw 43 and the X-axis motor 44 correspond to the drive source of the present invention.

Each part of the X-axis drive unit 24 has a structure (arrangement) in which each part of the Z-axis drive unit 22 described above is rotated by 90 degrees around the Y-axis. Therefore, when the X-axis motor 44 rotationally drives the feed screw 43 under the control of the control unit 65 (see FIG. 5) described later, the housing 38 can be moved in the X-axis direction via the nut 42, and the housing 38 can be moved. The X-axis base 23 can be moved relative to the main body base 12 in the X-axis direction via the pin insertion / removal portion 6X (see FIG. 5). As a result, the Y-axis drive unit 25 and the measurement unit 15 provided on the X-axis base 23 can be integrally moved in the X-axis direction.

Further, the X-axis motor 44 controls the rotation direction of the feed screw 43 to control the movement direction of the measurement unit 15 and the like in the X-axis direction, and controls the rotation speed of the feed screw 43 to control the measurement unit 15 and the like. The moving speed in the X-axis direction can be controlled.

The Y-axis drive unit 25 includes a cylindrical housing 50, a support column 51, a nut 52, a feed screw 53, and a Y-axis motor 54. The cylindrical housing 50 has a cylindrical shape parallel to the Y-axis direction, and is fixed to the upper surface of the X-axis base 23. In the cylindrical housing 50, a support column 51 inserted inside through an opening on the upper end side thereof is fitted.

Further, the feed screw 53 and the Y-axis motor 54 are housed in the cylindrical housing 50. Specifically, the Y-axis motor 54 is fixed on the X-axis base 23 in the cylindrical housing 50. Further, the lower end side of the feed screw 53 is connected to the Y-axis motor 54, and is held by the Y-axis motor 54 in a posture parallel to the Y-axis direction in the cylindrical housing 50.

The support column 51 has a cylindrical shape parallel to the Y-axis direction, and is fitted into the cylindrical housing 50 from the lower end side thereof. Further, the measuring unit 15 is fixed to the upper end of the support column 51. An annular engaging groove 51a with which the nut 52 is engaged is formed on the inner peripheral surface on the lower end side of the support column 51 along the circumferential direction thereof. The nut 52 is engaged with the engaging groove 51a in the strut 51 in a state where it cannot rotate relative to the Y-axis, and moves in the Y-axis direction integrally with the strut 51.

The lead screw 53 is fitted into the above-mentioned support column 51 from below. Further, the feed screw 53 is screwed into the nut 52 that is engaged with the engaging groove 51a in the support column 51.

The Y-axis motor 54 rotates the feed screw 53 under the control of the control unit 65 (see FIG. 5), which will be described later, to move the support column 51 in the Y-axis direction via the nut 52. As a result, the measurement unit 15 can be moved in the Y-axis direction. Further, the Y-axis motor 54 controls the rotation direction of the feed screw 53 to control the movement direction of the measurement unit 15 in the Y-axis direction, and controls the rotation speed of the feed screw 53 to control the Y of the measurement unit 15. The moving speed in the axial direction can be controlled.

By driving the Z-axis motor 34, the X-axis motor 44, and the Y-axis motor 54 in this way, the measurement unit 15 can be moved (coarse or finely moved) in each axial direction of the XYZ axes.

FIG. 3 is an explanatory diagram for explaining the pin insertion / removal portions 6Z and 6X in the connected state. FIG. 4 is an explanatory diagram for explaining the pin insertion / removal portions 6Z and 6X in the disconnected state. The pin insertion / removal portions 6Z and 6X correspond to the connecting portions of the present invention.

As shown in FIGS. 3 and 4, the pin insertion / removal portion 6Z is provided in a mounting hole opened on the lower surface side of the Z-axis base 21. The pin insertion / removal portion 6Z has a pin 7Z extending downward in the Y-axis direction. On the other hand, a pin hole 8Z (corresponding to the connected portion of the present invention) into which the pin 7Z is inserted is formed on the upper surface of the housing 28.

As shown in FIG. 3, the pin insertion / removal portion 6Z projects the pin 7Z downward from the lower surface of the Z-axis base 21 in the Y-axis direction in the connected state, and causes the pin 7Z to project in the Z-axis in the disconnected state as shown in FIG. By burying it in the lower surface of the base 21, the pin 7Z is inserted and removed from the pin hole 8Z. Specifically, when the pin insertion / extraction portion 6Z is switched to the connected state with the position of the pin 7Z of the pin insertion / extraction portion 6Z aligned with the position of the pin hole 8Z of the housing 28, the pin 7Z is inserted into the pin hole 8Z. The Z-axis base 21 and the housing 28 are connected to each other. As a result, the housing 28 and the Z-axis base 21 move integrally in the Z-axis direction, and the measuring unit 15 and the like on the Z-axis base 21 also move integrally in the Z-axis direction.

Further, when the pin insertion / removal portion 6Z is switched to the disconnection state in this state, the pin 7Z is pulled out from the pin hole 8Z, and the connection between the Z-axis base 21 and the housing 28 is released. As a result, the relative movement of the Z-axis base 21 and the measuring unit 15 with respect to the housing 28 in the Z-axis direction is allowed.

The pin insertion / removal portion 6X connects the X-axis base 23 and the housing 38. The pin insertion / removal portion 6X is provided in a mounting hole opened on the lower surface side of the X-axis base 23, and has a pin 7X extending downward in the Y-axis direction. On the other hand, a pin hole 8X (corresponding to the connected portion of the present invention) into which the pin 7X is inserted is formed on the upper surface of the housing 38.

Similar to the pin insertion / removal portion 6Z described above, the pin insertion / removal portion 6X projects the pin 7X from the lower surface of the X-axis base 23 downward in the Y-axis direction in the connected state, and causes the pin 7X to protrude from the lower surface of the X-axis base 23 in the Y-axis direction. By burying it in the lower surface of the 23, the pin 7X is inserted and removed from the pin hole 8X.

Therefore, when the pin insertion / extraction portion 6X is switched to the connected state with the position of the pin 7X and the position of the pin hole 8X aligned, the pin 7X is inserted into the pin hole 8X, and the X-axis base 23 and the housing 38 are inserted. And are connected. As a result, the housing 38 and the X-axis base 23 move integrally in the X-axis direction, and the measuring unit 15 and the like on the X-axis base 23 also move integrally in the X-axis direction. On the other hand, when the pin insertion / removal portion 6X is switched to the disengagement state, the pin 7X is pulled out from the pin hole 8X, and the connection between the X-axis base 23 and the housing 38 is released. As a result, relative movement of the X-axis base 23 and the measuring unit 15 with respect to the housing 38 in the X-axis direction is allowed.

The pin insertion / removal portions 6Z and 6X can be switched between a connected state and a disconnected state under the control of the control unit 65 (see FIG. 5) described later. As a result, when the pin insertion / extraction portions 6Z and 6X are switched to the connected state, the Z-axis motor 34 and the X-axis motor 44 are driven, that is, the Z-axis direction and the X-axis of the measurement unit 15 by the electric drive of the electric drive portion 14 described above. It is possible to move in the direction.

Further, when the pin insertion / removal portions 6Z and 6X are switched to the disconnected state, the Z-axis base 21 and the measuring unit 15 can be manually moved in the Z-axis direction, and the X-axis base 23 and the measurement can be manually performed. The unit 15 and the like can be moved in the X-axis direction. That is, the measurement unit 15 can be moved in the Z-axis direction and the X-axis direction by manually driving the electric drive unit 14.

The pin insertion / removal portion 6Z is provided with a camera 9Z for photographing the upper surface of the housing 28, particularly the pin hole 8Z. Further, the pin insertion / removal portion 6X is provided with a camera 9X for photographing the upper surface of the housing 38, particularly the pin hole 8X. The captured image data captured by the camera 9Z is used for aligning the pin 7Z and the pin hole 8Z, and the captured image data captured by the camera 9X is used for aligning the pin 7X and the pin hole 8X.

Returning to FIG. 1, the measuring unit 15 has a measuring optical system 15a (including an image pickup device and various light sources) corresponding to the type of eye characteristics measured by the ophthalmic apparatus 10. At the time of alignment detection, the measurement unit 15 outputs a detection signal for alignment detection (observation image of the anterior segment of the eye to be inspected E, etc.) to a control unit 65 (see FIG. 5) described later, and determines the eye characteristics of the eye to be inspected E. At the time of measurement, the measurement signal for measurement is output to the control unit 65. Since the configuration of the measurement unit 15 and the measurement optical system 15a thereof is a well-known technique, a specific description thereof will be omitted here.

The monitor 16 is attached to the end of the measuring unit 15 on the rear side (operator side) in the Z-axis direction. As the monitor 16, for example, a touch panel type liquid crystal display device is used. The monitor 16 relates to the measurement result of the eye characteristics of the eye E to be inspected obtained by the measurement unit 15, the observation image of the anterior eye portion of the eye E to be inspected used for alignment of the measurement unit 15, and the measurement of the eye characteristics. An operation screen or the like for performing an operation (including adjusting the position of the measurement unit 15) is displayed.

Further, the operation screen of the monitor 16 is used for a switching operation of switching the pin insertion / removal portions 6Z and 6X described above from either one of the connected state and the disconnected state to the other state. That is, the monitor 16 functions as the switching operation unit of the present invention. In addition, instead of the monitor 16, various operation units such as levers, switches, and buttons may be used to perform the switching operation.

The operating lever 17 is attached to, for example, an end portion on the X-axis base 23 on the rear side in the Z-axis direction. A measurement button is provided on the top of the operation lever 17, and by pressing this measurement button, the measurement unit 15 can start measuring the eye characteristics of the eye to be inspected E.

The operation lever 17 is an operation unit for electrically driving or manually driving the above-mentioned electric drive unit 14 by manual operation to move the measurement unit 15 in each axial direction of the XYZ axes. When the electric drive unit 14 is electrically driven as in the above-mentioned electric drive alignment, a rotation operation of rotating the operation lever 17 around its longitudinal axis (rotating clockwise or counterclockwise) and an operation lever 17 are performed. The tilting operation of tilting in the Z-axis direction or the X-axis direction is performed. Further, when the electric drive unit 14 is manually driven as in the above-mentioned manual drive alignment, a push-pull operation (horizontal movement operation) for pushing or pulling the operation lever 17 in the Z-axis direction or the X-axis direction is performed. Do.

When the operation lever 17 is rotated, the Y-axis motor 54 described above is driven, and the measuring unit 15 moves in the Y-axis direction (vertical direction). At this time, by switching the rotation direction of the operation lever 17, the rotation direction of the feed screw 53 by the Y-axis motor 54 is switched, so that the measurement unit 15 can be moved in the Y-axis direction as described above. Further, by adjusting the rotation angle of the operating lever 17, the coarse movement (high speed movement) and the fine movement (low speed movement) of the measuring unit 15 in the Y-axis direction can be switched. The rotation angle of the operating lever 17 is detected by, for example, the Y potentiometer 56Y (see FIG. 5), which is a rotary potentiometer.

When the operating lever 17 is tilted in the Z-axis direction and the X-axis direction (horizontal direction), the Z-axis motor 34 or the X-axis motor 44 described above is driven, that is, the electric drive unit 14 is electrically driven. , The measuring unit 15 moves in the Z-axis direction or the X-axis direction. At this time, by adjusting the tilt angle of the operation lever 17, the high-speed drive and the low-speed drive of the Z-axis motor 34 and the X-axis motor 44 are switched, and as a result, the Z-axis direction and the X-axis direction of the measurement unit 15 are switched. Coarse movement (high speed movement) and fine movement (low speed movement) can be switched.

The tilting direction and tilting angle of the operating lever 17 are detected by, for example, the Z potentiometer 56Z and the X potentiometer 56X (see FIG. 5), which are linear potentiometers.

When the operating lever 17 is pushed and pulled in the Z-axis direction or the X-axis direction without being tilted, the X-axis base 23 is pressed in the Z-axis direction or the X-axis direction via the operating lever 17. For example, when the X-axis base 23 is pressed in the Z-axis direction, the Z-axis base 21 is pressed in the Z-axis direction via the X-axis drive unit 24. As a result, when the pin insertion / removal portion 6Z is in the disconnected state, the electric drive portion 14 is manually driven by pressing the Z-axis base 21 in the Z-axis direction, and the Z-axis base 21 and the measurement unit 15 and the like are pressed against the main body base 12. Is integrally moved in the Z-axis direction.

Further, when the X-axis base 23 is pressed in the X-axis direction and the pin insertion / removal portion 6X is in the disconnected state, the electric drive unit 14 is manually driven by the pressing against the X-axis base 23 in the X-axis direction, and the X-axis base is driven. The 23 and the measuring unit 15 and the like are moved in the X-axis direction with respect to the Z-axis base 21 (main body base 12).

FIG. 5 is a block diagram showing an electrical configuration of the control unit 65 of the first embodiment provided in the ophthalmic apparatus 10. As shown in FIG. 5, the control unit 65 is an arithmetic circuit composed of various arithmetic units including, for example, a CPU (Central Processing Unit) or an FPGA (field-programmable gate array), a memory, and the like, and is an ophthalmic apparatus 10. Controls the operation of each part of. For example, the control unit 65 acquires and outputs the detection signal for alignment detection described above and acquires and outputs the measurement signal of the eye characteristics of the eye E to be inspected in response to a touch operation of the monitor 16 or an operation of the operation lever 17. To the measurement unit 15.

Further, the control unit 65 detects a relative position with the arithmetic processing unit 67 and the movement control unit 68 (corresponding to the first movement control unit of the present invention) by executing a control program (not shown) read from the storage unit 66. It functions as a unit 90 and a connection control unit 91.

The arithmetic processing unit 67 functions as an alignment detection unit 70 and an analysis unit 71. The alignment detection unit 70 performs alignment detection in each axial direction of the XYZ axes of the measurement unit 15 with respect to the eye E to be inspected based on the detection signal for alignment detection input from the measurement unit 15 in the auto alignment mode described later. Then, the alignment detection unit 70 outputs the alignment detection result to the movement control unit 68.

The analysis unit 71 analyzes the measurement signal of the eye characteristic of the eye E to be inspected input from the measurement unit 15 and obtains the measurement result of the eye characteristic. Then, the analysis unit 71 outputs the measurement result of the eye characteristics of the eye to be inspected E to the monitor 16 and the storage unit 66. As a result, the measurement result of the eye characteristics of the eye E to be inspected is displayed on the monitor 16 and stored in the storage unit 66.

When the pin insertion / removal portions 6Z and 6X are connected to each other, the movement control unit 68 controls the electric drive of the electric drive unit 14, that is, the drive of the Z-axis motor 34, the X-axis motor 44, and the Y-axis motor 54. By moving the measurement unit 15 in each axial direction of the XYZ axes, the measurement unit 15 is aligned with the eye E to be inspected. In addition to the motors 34, 44, 54 and the potentiometers 56X, 56Y, 56Z described above, the movement control unit 68 includes an X-axis position detection sensor 73 that detects the position of the measurement unit 15 in the X-axis direction. , The Y-axis position detection sensor 74 that detects the position in the Y-axis direction and the Z-axis position detection sensor 75 that detects the position in the Z-axis direction are connected.

The movement control unit 68 has an auto alignment mode and a manual alignment mode as operation modes for aligning the measurement unit 15 with respect to the eye E to be inspected. The manual alignment mode is a mode in which auto alignment cannot be performed, for example, the cornea or iris of the eye to be inspected E has an abnormality or nystagmus is large. This manual alignment mode includes the electric drive alignment mode for performing the electric drive alignment described above and the manual drive alignment mode for performing the manual drive alignment. Each alignment mode is switched by, for example, a touch operation on the operation screen displayed on the monitor 16.

When the auto alignment mode is set, the movement control unit 68 sets each motor based on the alignment detection result input from the alignment detection unit 70 described above and the detection results of the position detection sensors 73, 74, 75. The drive of 34, 44, 54 is controlled to adjust the position of the measurement unit 15 in each axial direction of the XYZ axes. As a result, the auto-alignment of the measurement unit 15 with respect to the eye E to be inspected is executed. The position adjustment of the measurement unit 15 before the alignment detection by the alignment detection unit 70 is performed by the same method as the electric drive alignment mode described later.

When the electric drive alignment mode is selected, the movement control unit 68 receives a signal input from any of the potentiometers 56X, 56Y, and 56Z when the operation lever 17 is tilted and rotated. Drive any of the motors 34, 44, 54. As a result, the electric drive unit 14 is electrically driven, and the measurement unit 15 moves (coarse or fine movement) according to the direction and speed corresponding to the tilting operation or the rotating operation.

The movement control unit 68 drives the Z-axis motor 34 when the connection control unit 91, which will be described later, switches the pin insertion / removal units 6Z and 6X to the disconnection state in response to the switching operation to the manual drive alignment mode on the monitor 16. Then, the housing 28 and the nut 32 are moved to the predetermined retracted position RZ (see FIG. 6). Further, the movement control unit 68 drives the X-axis motor 44 to move the housing 38 and the nut 42 to a predetermined retracted position RX (see FIG. 6). As a result, in the manual drive alignment mode, the housing 28 and the nut 32 (hereinafter abbreviated as the housing 28 and the like) and the housing 38 and the nut 42 (hereinafter abbreviated as the housing 38 and the like) are retracted to the retracted positions RZ and RX, respectively. To.

In the present embodiment, the retracted position RZ is set to a position facing the pin insertion / extraction portion 6Z when the Z-axis base 21 is located at one end of the moving range in the Z-axis direction. Further, the retracted position RZ is set at a position facing the pin insertion / extraction portion 6X when the X-axis base 23 is located at one end of the moving range in the X-axis direction. The positions of the retracted positions RZ and RX may be changed as appropriate.

The relative position detection unit 90 constitutes the relative position detection unit of the present invention together with the cameras 9Z and 9X described above. The relative position detecting unit 90 detects the relative position of the pin 7Z in the Z-axis direction with respect to the pin hole 8Z (hereinafter referred to as the Z-axis relative position), and the relative position of the pin 7X with respect to the pin hole 8X in the X-axis direction (hereinafter referred to as the Z-axis relative position). , X-axis relative position) is detected.

Specifically, when the monitor 16 switches the relative position detection unit 90 from the manual drive alignment mode to the electric drive alignment mode or the auto alignment mode (hereinafter, abbreviated as the electric drive alignment mode, etc.), the camera 9Z and Captured image data is acquired from each camera 9X. The relative position detection unit 90 detects the position of the pin hole 8Z and the position of the pin hole 8X from each acquired image data.

Next, the relative position detection unit 90 detects the Z-axis relative position based on the detected position of the pin hole 8Z and the known mounting position of the camera 9Z in the Z-axis base 21. Further, the relative position detection unit 90 detects the X-axis relative position based on the detected position of the pin hole 8X and the known mounting position of the camera 9X in the X-axis base 23. The Z-axis relative position is represented by, for example, the amount of misalignment between the center position of the pin 7Z and the center position of the pin hole 8Z in the Z-axis direction, and the X-axis relative position is, for example, the center position of the pin 7X and the center of the pin hole 8X. It is represented by the amount of displacement in the X-axis direction from the position. The relative position detection unit 90 outputs the detection result of the Z-axis relative position and the X-axis relative position to the connection control unit 91, respectively.

The connection control unit 91 controls switching between the connection state and the connection release state of the pin insertion / removal units 6Z and 6X. When the monitor 16 switches to the manual drive alignment mode, the connection control unit 91 immediately switches the pin insertion / removal units 6Z and 6X from the connection state to the disconnection state.

On the other hand, when the monitor 16 switches to the electric drive alignment mode or the like, the connection control unit 91 is in a state of disconnection of the pin insertion / removal units 6Z and 6X based on the detection result by the relative position detection unit 90 described above. Controls the switch from to the connected state.

FIG. 6 is an explanatory diagram for explaining the switching control of the pin insertion / removal portions 6Z and 6X from the disconnection state to the connection state by the connection control unit 91.

As shown by reference numeral A1 in FIG. 6, when the pin insertion / removal portion 6Z is switched to the disconnection state by the connection control unit 91 in response to the switching operation to the manual drive alignment mode, the movement control unit is indicated by reference numeral B1. The 68 drives the Z-axis motor 34 to move the housing 28 and the like to the retracted position RZ. Therefore, when switching to the electric drive alignment mode or the like on the monitor 16, that is, when switching the pin insertion / removal portion 6Z to the connected state, the operator moves the pin hole 8Z to the position as shown by reference numeral C1. On the other hand, the alignment operation is performed to manually align the positions of the pin insertion / extraction portions 6Z (pin 7Z). Specifically, the operator pushes and pulls the operation lever 17 in the Z-axis direction to move the pin insertion / removal portion 6Z to the retracted position RZ. As a result, the position of the pin 7Z can be manually aligned with the position of the pin hole 8Z.

At this time, the retracted position RZ is set at a position facing the pin insertion / extraction portion 6Z in the Z-axis base 21 when the Z-axis base 21 is located at one end of the movement range in the Z-axis direction. Therefore, the operator manually drives the electric drive unit 14 by pushing and pulling the operation lever 17 in the Z-axis direction, and moves the Z-axis base 21 to one end of the movement range in the Z-axis direction. Pin 7Z can be aligned with respect to 8Z.

The connection control unit 91 determines whether or not the alignment of the pin 7Z with respect to the pin hole 8Z is completed based on the detection result of the Z-axis relative position input from the relative position detection unit 90. For example, when the detection result of the Z-axis relative position is the above-mentioned displacement amount in the Z-axis direction, the connection control unit 91 completes the alignment based on whether or not the displacement amount is equal to or less than a predetermined threshold value. Determine if you did. Then, as shown by reference numeral D1, when the connection control unit 91 determines that the alignment is completed, the pin insertion / removal unit 6Z is changed from the disconnection state to the connection state in response to the switching operation to the electric drive alignment mode or the like. Switch.

If the connection control unit 91 switches to the electric drive alignment mode or the like while the alignment has not been completed, the connection control unit 91 suspends the switching of the pin insertion / extraction unit 6Z to the connection state and completes the alignment. The monitor 16 is made to execute a warning display or the like indicating that it is not done.

The switching control of the pin insertion / removal unit 6X from the connection state to the connection release state by the connection control unit 91 is basically the same as the switching control of the pin insertion / removal unit 6Z described above. First, the operator performs a push-pull operation in the X-axis direction with respect to the operation lever 17 as a positioning operation for manually aligning the position of the pin insertion / extraction portion 6X (pin 7X) with respect to the position of the pin hole 8X, and then performs the pin insertion / extraction portion. Move 6X to the retracted position RX. Next, when the connection control unit 91 determines that the alignment of the pin 7X with respect to the pin hole 8X is completed based on the detection result of the X-axis relative position input from the relative position detection unit 90, the connection control unit 91 shifts to the electric drive alignment mode or the like. The pin insertion / removal portion 6X is switched from the disconnected state to the connected state according to the switching operation of.

[Action of Ophthalmic Device of First Embodiment]
<Manual drive alignment mode>
FIG. 7 is a flowchart showing a flow of measuring the eye characteristics of the eye E to be inspected in the manual drive alignment mode by the ophthalmic apparatus 10 of the first embodiment having the above configuration.

As shown in FIG. 7, the operator adjusts the height position of the chin rest and the forehead pad of the face support portion 13 in the Y-axis direction, and the height of the measurement unit 15 with respect to the face of the subject in the Y-axis direction. Adjust the position. Next, when the measurement unit 15 is aligned with the eye E to be inspected by the manual drive alignment, the operator performs a switching operation to the manual drive alignment mode on the monitor 16 (step S10). In response to this switching operation, the connection control unit 91 immediately switches the pin insertion / removal units 6Z and 6X from the connection state to the disconnection state (YES in step S20, step S30). As a result, the electric drive unit 14 can be manually driven.

When the pin insertion / removal portions 6Z and 6X are switched to the disconnected state, the movement control unit 68 drives the Z-axis motor 34 and the X-axis motor 44 to retract the housing 28 and the like and the housing 38 and the like, respectively. (Step S40).

Then, the operator manually drives the electric drive unit 14 by pushing and pulling the operation lever 17 in the Z-axis direction and the X-axis direction, so that the measurement unit 15 is moved in the Z-axis direction and the X-axis direction ( Step S50). As a result, the position of the measurement unit 15 in the Z-axis direction and the position in the X-axis direction with respect to the eye E to be inspected are adjusted, and the alignment of the measurement unit 15 with respect to the eye E to be inspected is executed.

When the alignment of the measurement unit 15 with respect to the eye to be inspected E is completed (YES in step S60), the measurement of the eye characteristics of the eye to be inspected E by the measurement unit 15 is executed, and the measurement unit 15 informs the analysis unit 71 of the eye characteristics of the eye to be inspected E. The measurement signal is input. The analysis unit 71 analyzes the measurement signal of the eye characteristic from the measurement unit 15 and obtains the measurement result of the eye characteristic (step S70). The measurement result of the eye characteristics of the eye E to be inspected is displayed on the monitor 16 and stored in the storage unit 66.

When switching the left and right of the eye E to be examined for measuring the eye characteristics, or when measuring the eye characteristics of the eye E to be examined by another subject, the processing of each of the above steps is repeatedly executed.

<Electric drive alignment mode and auto alignment mode>
Next, with reference to FIG. 8, the measurement process of the eye characteristics of the eye to be inspected E in the electric drive alignment mode or the like by the ophthalmic apparatus 10 of the first embodiment of the above configuration will be described. Note that FIG. 8 is a flowchart showing a flow of measuring the eye characteristics of the eye E to be inspected in the electric drive alignment mode or the like by the ophthalmic apparatus 10 of the first embodiment.

As shown in FIG. 8, the operator first adjusts the height position of the measuring unit 15 with respect to the face of the subject in the Y-axis direction, as in the manual drive alignment mode described above. Next, when the operator aligns the measurement unit 15 with respect to the eye E by electric drive alignment or the like, whether or not the ophthalmic device 10 is in the manual drive alignment mode, that is, the pin insertion / removal portions 6Z and 6X are in the disconnected state. Check if it is.

When the pin insertion / removal portions 6Z and 6X are in the disconnected state (YES in step S100), the operator starts the alignment operation for manually aligning the positions of the pins 7Z and 7X with respect to the positions of the pin holes 8Z and 8X, respectively. (Step S110). Specifically, the operator pushes and pulls the operation lever 17 in the Z-axis direction and the X-axis direction to move the pin insertion / removal portions 6Z and 6X to the retracted positions RZ and RX, respectively. In the present embodiment, by adjusting the positions of the retracted positions RZ and RX as described above, the Z-axis base 21 is moved to one end of the movement range in the Z-axis direction, and the X-axis base 23 is moved in the X-axis direction. Pins 7Z and 7X can be aligned with respect to pin holes 8Z and 8X simply by moving them to one end of the range. Therefore, the operator can easily align the pins 7Z and 7X with respect to the pin holes 8Z and 8X.

When the pin insertion / removal portions 6Z and 6X are in the disconnected state, the cameras 9Z and 9X start shooting, respectively, and output the captured image data to the relative position detection unit 90, respectively. As a result, the relative position detection unit 90 can acquire the photographed image data of the upper surface of the housing 28 photographed by the camera 9Z and the photographed image data of the upper surface of the housing 38 photographed by the camera 9X (step S120).

Next, the relative position detection unit 90 detects the positions of the pin holes 8Z and 8X included in the captured image data acquired from the cameras 9Z and 9X, respectively. Then, the relative position detection unit 90 detects the Z-axis relative position based on the detection position of the pin hole 8Z and the mounting position of the camera 9Z, and also detects the X-axis based on the detection position of the pin hole 8X and the mounting position of the camera 9X. The relative position is detected (step S130). The detection result of the Z-axis relative position and the detection result of the X-axis relative position are output from the relative position detection unit 90 to the connection control unit 91, respectively.

Upon receiving the input of the detection result of the Z-axis relative position and the X-axis relative position detection result, the connection control unit 91 aligns the pin 7Z with respect to the pin hole 8Z and the pin 7X with respect to the pin hole 8X based on each detection result. Alignment and determine if each is complete.

After performing the alignment operation in step S110 described above, the operator performs a switching operation to the electric drive alignment mode or the like on the monitor 16 (step S140). In response to this switching operation, when the alignment of the pins 7Z and 7X with respect to the pin holes 8Z and 8X is completed (step S150), the connection control unit 91 connects the pin insertion / removal units 6Z and 6X from the disconnected state to the connected state, respectively. Switch to (step S160). As a result, the electric drive unit 14 can be electrically driven.

On the other hand, when the alignment of the pins 7Z and 7X with respect to the pin holes 8Z and 8X is not completed (NO in step S150), the connection control unit 91 suspends the switching of the pin insertion / extraction units 6Z and 6X to the connected state. , The monitor 16 is made to execute a warning display indicating that the alignment is not completed. Hereinafter, the processes from step S110 to step S140 are repeatedly executed until YES is determined in step S150.

In the electric drive alignment mode, the operator tilts the operating lever 17 in the Z-axis direction and the X-axis direction to electrically drive the electric drive unit 14, so that the measurement unit 15 moves in the Z-axis direction and the X-axis direction. (Step S170). As a result, the position of the measurement unit 15 in the Z-axis direction and the position in the X-axis direction with respect to the eye E to be inspected are adjusted, and the alignment of the measurement unit 15 with respect to the eye E to be inspected is executed.

Further, in the auto alignment mode, when the position adjustment of the measurement unit 15 before the alignment detection is completed, the measurement unit 15 inputs a detection signal for alignment detection to the alignment detection unit 70. Upon receiving the input of this detection signal, the alignment detection unit 70 detects the alignment of the measurement unit 15 with respect to the eye E in the three axes of the XYZ axes, and outputs the alignment detection result to the movement control unit 68. Then, the movement control unit 68 drives the motors 34, 44, 54 based on the alignment detection result input from the alignment detection unit 70 to start the auto alignment (step S170).

When the alignment of the measurement unit 15 with respect to the eye to be inspected E is completed (YES in step S180), the measurement of the eye characteristics of the eye to be inspected E by the measurement unit 15 and the analysis unit 71 are performed in the same manner as in step S70 shown in FIG. The analysis according to the above is executed, and the measurement result of the eye characteristics of the eye E to be inspected is obtained (step S190). The measurement result of the eye characteristics of the eye E to be inspected is displayed on the monitor 16 and stored in the storage unit 66. Then, when switching the left and right of the eye E to be examined for measuring the eye characteristics, or when measuring the eye characteristics of the eye E to be examined by another subject, the processing of each of the above steps is repeatedly executed.

[Effect of Ophthalmic Device of First Embodiment]
As described above, in the ophthalmic apparatus 10 of the first embodiment, by switching the pin insertion / removal portions 6Z and 6X between the connected state and the disconnected state, it is possible to switch between the electric drive and the manual drive of the electric drive unit 14. .. As a result, the movement of the measurement unit 15 by the electric drive of the electric drive unit 14 and the movement of the measurement unit 15 by the manual drive of the electric drive unit 14 can be performed with a common configuration (electric drive unit 14). As a result, it is not necessary to separately provide a configuration in which the measurement unit 15 is moved by electric drive and a configuration in which the measurement unit 15 is moved by manual drive as in the conventional case. Therefore, the movement of the measurement unit 15 by electric drive and the movement of the measurement unit 15 by manual drive can be carried out with a simple configuration. Further, the effects of reducing the manufacturing cost, downsizing, and weight reduction of the ophthalmic apparatus 10 can be obtained.

In the first embodiment, the pin insertion / removal portions 6Z and 6X are provided in the shaft bases 21 and 23, respectively, and the pin holes 8Z and 8X are provided in the housings 28 and 38, respectively, but the present invention is limited thereto. It's not a thing. For example, pin holes 8Z and 8X may be provided in each of the shaft bases 21 and 23, and pin insertion / extraction portions 6Z and 6X may be provided in the housings 28 and 38, respectively. The same applies to the second embodiment and the third embodiment described later.

[Ophthalmic apparatus of the second embodiment]
Next, the ophthalmic apparatus 10 of the second embodiment of the present invention will be described. In the ophthalmic apparatus 10 of the first embodiment, when the pin insertion / removal portions 6Z and 6X are switched to the disconnected state in response to the setting operation of the manual drive alignment mode, the operating lever 17 is pushed in the Z-axis direction and the X-axis direction. By the pulling operation, the housing 28 and the like and the housing 38 and the like are moved to the retracted positions RZ and RX, respectively. On the other hand, in the ophthalmic apparatus 10 of the second embodiment, when the pin insertion / removal portions 6Z and 6X are switched to the disconnected state, the housing 28 responds to the push-pull operation of the operating lever 17 in the Z-axis direction and the X-axis direction. Etc. are moved following the pin insertion / removal portion 6Z, and the housing 38 and the like are moved following the pin insertion / removal portion 6X.

FIG. 9 is a block diagram showing an electrical configuration of the control unit 65 of the ophthalmic apparatus 10 of the second embodiment. As shown in FIG. 9, in the ophthalmic apparatus 10 of the second embodiment, the control unit 65 functions as a movement control unit 68A, a relative position detection unit 90A, and a connection control unit 91A, which are different from those of the first embodiment. For example, it has basically the same configuration as the ophthalmic apparatus 10 of the first embodiment. Therefore, those having the same function or configuration as the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

During the manual drive alignment mode, the relative position detection unit 90A sequentially acquires the captured image data from the camera 9Z and the camera 9X, and sequentially detects the Z-axis relative position and the X-axis relative position described above based on each captured image data. And the sequential output of the detection results of the Z-axis relative position and the X-axis relative position with respect to the movement control unit 68A.

FIG. 10 is an explanatory diagram for explaining the control of the movement control unit 68A and the connection control unit 91A of the second embodiment. The movement control unit 68A corresponds to the second movement control unit of the present invention. The movement control unit 68A is basically the same as the movement control unit 68 of the first embodiment, except that the control performed in the manual drive alignment mode is different from that of the movement control unit 68 of the first embodiment.

As shown by reference numeral A2 in FIG. 10, when the pin insertion / removal units 6Z and 6X are switched to the disconnection state in response to the switching operation to the manual drive alignment mode, the movement control unit 68A moves from the relative position detection unit 90A to the Z axis. The relative position detection result and the X-axis relative position detection result are sequentially acquired.

Then, as shown by reference numerals B2 and C2, when the Z-axis base 21 moves in the Z-axis direction in response to a push-pull operation in the Z-axis direction with respect to the operation lever 17, the movement control unit 68A Z before and after this movement. The housing 28 and the like are moved in the Z-axis direction by driving the Z-axis motor 34 based on the detection result of the Z-axis relative position so that the axis relative position is maintained constant (including substantially constant). For example, when the detection result of the Z-axis relative position is the position shift amount in the Z-axis direction described above, the movement control unit 68A maintains the state in which the position shift amount in the Z-axis direction is equal to or less than the threshold value described above. , Drives the Z-axis motor 34.

Further, when the X-axis base 23 moves in the X-axis direction in response to a push-pull operation in the X-axis direction with respect to the operation lever 17, the movement control unit 68A keeps the X-axis relative position constant before and after this movement. In addition, based on the detection result of the X-axis relative position, the X-axis motor 44 is driven to move the housing 38 and the like in the X-axis direction. As a result, when the push-pull operation in the Z-axis direction and the X-axis direction is performed, the housing 28 and the like are moved following the pin insertion / removal portion 6Z, and the housing 38 and the like are moved following the pin insertion / removal portion 6X. be able to.

When the monitor 16 switches to the manual drive alignment mode, the connection control unit 91A changes the pin insertion / removal units 6Z and 6X from the connection state to the disconnection state, as in the connection control unit 91 of the first embodiment. Switch immediately.

On the other hand, when the monitor 16 switches to the electric drive alignment mode or the like, the following movement of the housing 28 or the like and the housing 38 or the like is executed under the control of the movement control unit 68A as described above. There is. Therefore, as shown by reference numeral D2, the connection control unit 91A immediately switches the pin insertion / removal units 6Z and 6X from the disconnection state to the connection state.

[Action of Ophthalmic Device of Second Embodiment]
<Manual drive alignment mode>
FIG. 11 is a flowchart showing a flow of measuring the eye characteristics of the eye E to be inspected in the manual drive alignment mode by the ophthalmic apparatus 10 of the second embodiment having the above configuration. As shown in FIG. 11, up to step S30 is basically the same as the first embodiment described with reference to FIG. 7, and therefore a specific description thereof will be omitted.

After the pin insertion / removal portions 6Z and 6X are switched to the disconnected state in step S30, the operator manually drives the electric drive portion 14 by pushing and pulling the operation lever 17 in the Z-axis direction and the X-axis direction. The measurement unit 15 is moved in the Z-axis direction and the X-axis direction (step S50). As a result, the alignment of the measurement unit 15 with respect to the eye E to be inspected is executed.

At this time, since the images taken by the cameras 9Z and 9X are executed respectively, the relative position detection unit 90A uses the photographed image data of the upper surface of the housing 28 photographed by the camera 9Z and the photographed image data of the upper surface of the housing 38 photographed by the camera 9X. The captured image data and the captured image data are sequentially acquired (step S51).

Next, the relative position detection unit 90A sequentially detects the Z-axis relative position and the X-axis relative position based on the captured image data acquired from the cameras 9Z and 9X, and controls the movement of these detection results as in the first embodiment. The data is sequentially output to the unit 68A (step S52).

Then, the movement control unit 68A sets the Z-axis motor 34 and the X-axis motor 44, respectively, so that the detection results of the Z-axis relative position and the X-axis relative position sequentially input from the relative position detection unit 90A are maintained constant. Drive. As a result, when the push-pull operation in the Z-axis direction is performed, the housing 28 or the like is moved following the pin insertion / removal portion 6Z, and when the push-pull operation in the X-axis direction is performed, the pin insertion / removal portion 6X is moved. The housing 38 and the like are moved following (step S53). As a result, when the alignment of the measurement unit 15 with respect to the eye E to be inspected in the manual drive alignment mode is completed (YES in step S60), the alignment of the pin holes 8Z and 8Z with respect to the pins 7Z and 7X is completed, respectively.

Since the processing after step S60 is the same as that of the first embodiment shown in FIG. 7 described above, a specific description thereof will be omitted here.

<Electric drive alignment mode and auto alignment mode>
Next, with reference to FIG. 12, the measurement process of the eye characteristics of the eye E to be inspected in the electric drive alignment mode or the like by the ophthalmic apparatus 10 of the second embodiment of the above configuration will be described.

As shown in FIG. 12, in the second embodiment, when the pin insertion / removal portions 6Z and 6X are in the disconnected state (YES in step S100), the pin hole 8Z is caused by the follow-up movement described in step S53 of FIG. The alignment of pins 7Z and 7X with respect to 8X has been completed. Therefore, when the operator performs a switching operation to the electric drive alignment mode or the like on the monitor 16 (step S140), the connection control unit 91A immediately switches the pin insertion / removal units 6Z and 6X from the connection state to the disconnection state (step). S160).

Since the processing after step S170 is the same as that of the first embodiment shown in FIG. 8 described above, a specific description thereof will be omitted here.

[Effect of Ophthalmic Device of the Second Embodiment]
As described above, also in the ophthalmic apparatus 10 of the second embodiment, by switching the pin insertion / removal portions 6Z and 6X between the connected state and the disconnected state, it is possible to switch between the electric drive and the manual drive of the electric drive unit 14. Therefore, the same effect as that of the ophthalmic apparatus 10 of the first embodiment can be obtained. Further, in the ophthalmic apparatus 10 of the second embodiment, by executing the above-mentioned follow-up movement in the manual drive alignment mode, it is possible to switch from the manual drive alignment mode to the electric drive alignment mode or the like in a shorter time than in the first embodiment. it can.

[Ophthalmic apparatus of the third embodiment]
Next, the ophthalmic apparatus 10 according to the third embodiment of the present invention will be described. In the ophthalmic apparatus 10 of the second embodiment, the housings 28 and 38 are followed and moved based on the detection results of detecting the Z-axis relative position and the X-axis relative position by the relative position detection unit 90 during the manual drive alignment mode. .. On the other hand, in the ophthalmic apparatus 10 of the third embodiment, only the Z-axis relative position and the X-axis relative position are detected during the manual drive alignment mode, and the housing is changed according to the switching operation to the electric drive alignment mode or the like. Move 28 and 38.

FIG. 13 is a block diagram showing an electrical configuration of the control unit 65 of the ophthalmic apparatus 10 of the third embodiment. As shown in FIG. 13, the ophthalmic apparatus 10 of the third embodiment is provided with photo interrupters 94Z and 94X instead of the cameras 9Z and 9X, and the control unit 65 is a movement control unit 68B and a relative position detection unit 90B. The configuration is basically the same as that of the ophthalmic apparatus 10 of each of the above-described embodiments, except that it functions as the connection control unit 91B. Therefore, those having the same function or configuration as each of the above embodiments are designated by the same reference numerals and the description thereof will be omitted.

The photo interrupter 94Z (also referred to as a photo counter) optically reads a Z-axis linear scale (not shown) parallel to the Z-axis direction provided on the Z-axis base 21. As a result, when the Z-axis base 21 moves relative to the housing 28 or the like in the Z-axis direction in the manual drive alignment mode, the moving distance and the moving direction can be detected by the photo interrupter 94Z. Therefore, the Z-axis relative position described above can be detected from the reading result of the Z-axis linear scale by the photointerruptor 94Z (hereinafter referred to as the Z-axis scale reading result).

The photo interrupter 94X optically reads an X-axis linear scale (not shown) parallel to the X-axis direction provided on the X-axis base 23. As a result, when the X-axis base 23 moves relative to the housing 38 or the like in the X-axis direction in the manual drive alignment mode, the moving distance and the moving direction can be detected by the photo interrupter 94X. Therefore, the above-mentioned X-axis relative position can be detected from the reading result of the X-axis linear scale by the photointerruptor 94X (hereinafter referred to as the X-axis scale reading result).

The photo interrupters 94Z and 94X sequentially output the Z-axis scale reading result and the X-axis scale reading result to the relative position detection unit 90B during the manual drive alignment mode. The photo interrupters 94Z and 94X function as the relative position detection unit of the present invention together with the relative position detection unit 90B described later.

The relative position detection unit 90B sequentially acquires the Z-axis scale reading result and the X-axis scale reading result from the photo interrupters 94Z and 94X during the manual drive alignment mode, and based on these reading results, the Z-axis relative position and the X-axis relative position. The position and each are detected sequentially. Then, when the monitor 16 switches to the electric drive alignment mode or the like, the relative position detection unit 90B outputs the latest Z-axis relative position and the X-axis relative position to the movement control unit 68B, respectively.

FIG. 14 is an explanatory diagram for explaining the control of the movement control unit 68B and the connection control unit 91B of the third embodiment. The movement control unit 68B corresponds to the third movement control unit of the present invention. The movement control unit 68B has a control that is performed in response to a switching operation to the manual drive alignment mode and a control that is performed in response to a switching operation to the electric drive alignment mode or the like. Except for the difference, it is basically the same as the movement control unit 68.

As shown by reference numeral A3 in FIG. 14, when the pin insertion / removal units 6Z and 6X are switched to the disconnection state in response to the switching operation to the manual drive alignment mode, the movement control unit 68B moves the Z-axis motor 34 and the X-axis motor. Immediately stop driving 44. As a result, the positions of the housings 28 and 38 are fixed during the manual drive alignment mode, respectively.

As shown by reference numeral B3, during the manual drive alignment mode, the movement control unit 68B continues to stop driving the Z-axis motor 34 and the X-axis motor 44. At this time, the above-mentioned relative position detection unit 90B sequentially acquires the Z-axis scale reading result and the X-axis scale reading result from the photo interrupters 94Z and 94X, and sequentially detects the Z-axis relative position and the X-axis relative position. I do.

As shown by reference numeral C3, when the monitor 16 switches to the electric drive alignment mode or the like, the movement control unit 68B acquires the latest Z-axis relative position and X-axis relative position from the relative position detection unit 90B. To do. Then, the movement control unit 68B drives the Z-axis motor 34 to the facing position FZ facing the pin insertion / extraction portion 6Z of the Z-axis base 21 by driving the Z-axis motor 34 based on the latest Z-axis relative position and X-axis relative position. At the same time, the X-axis motor 44 is driven to move the housing 38 and the like to the opposite position FX facing the pin insertion / extraction portion 6X of the X-axis base 23. As a result, the pin holes 8Z and 8X can be automatically aligned with respect to the pins 7Z and 7X, respectively.

When the monitor 16 switches to the manual drive alignment mode, the connection control unit 91B disconnects the pin insertion / removal units 6Z and 6X from the connection state in the same manner as the connection control units 91 and 91A of each of the above embodiments. Switch to the state immediately.

On the other hand, when the monitor 16 switches to the electric drive alignment mode or the like, the housings 28 and 38 are moved to the facing positions FZ and FX, respectively, under the control of the movement control unit 68B described above. Therefore, as shown by reference numeral D3, the connection control unit 91B switches the pin insertion / removal units 6Z and 6X from the disconnection state to the connection state when the housings 28 and 38 are moved to the facing positions FZ and FX, respectively.

[Action of Ophthalmic Device of Third Embodiment]
<Manual drive alignment mode>
FIG. 15 is a flowchart showing a flow of measuring the eye characteristics of the eye E to be inspected in the manual drive alignment mode by the ophthalmic apparatus 10 of the third embodiment having the above configuration. As shown in FIG. 15, since the steps up to step S50 are basically the same as those of the second embodiment described with reference to FIG. 11 described above, a specific description thereof will be omitted.

When the operation for switching to the manual drive alignment mode is performed in step S10, the photo interrupter 94Z reads the Z-axis linear scale (not shown) and the photo interrupter 94X reads the X-axis linear scale (not shown). Is started.

When the measuring unit 15 is moved in the Z-axis direction and the X-axis direction in response to the push-pull operation in step S50, the relative position detection unit 90B receives the Z-axis scale reading result and the X-axis scale from the photo interrupters 94Z and 94X. The reading results are sequentially acquired (step S51A). Further, the relative position detection unit 90B sequentially detects the Z-axis relative position and the X-axis relative position based on the Z-axis scale reading result and the X-axis scale reading result acquired sequentially (step S52A).

Hereinafter, until the alignment of the measurement unit 15 with respect to the eye E to be inspected is completed, the Z-axis scale reading result and the X-axis scale reading result are acquired by the relative position detection unit 90B, and the Z-axis relative position and the X-axis relative position are detected. It is repeatedly executed (NO in step S60). As a result, the relative position detection unit 90B can constantly acquire the latest Z-axis relative position and X-axis relative position during the manual drive alignment mode, and as a result, track the positions of pins 7Z and 7X. Can be done.

Since the processing after the alignment of the measurement unit 15 with respect to the eye E to be inspected is completed (YES in step S60) is the same as the first embodiment shown in FIG. 7 described above, a specific description thereof will be omitted here. ..

<Electric drive alignment mode and auto alignment mode>
FIG. 16 is a flowchart showing a flow of measurement processing of the eye characteristics of the eye E to be inspected in the electric drive alignment mode or the like by the ophthalmic apparatus 10 of the third embodiment having the above configuration. As shown in FIG. 16, up to step S140 is basically the same as the second embodiment described with reference to FIG. 12, so a specific description thereof will be omitted.

When the switching operation to the electric drive alignment mode or the like is performed in step S140, the relative position detection unit 90B obtains the latest Z-axis relative position and X-axis relative position acquired in step S52A (see FIG. 15) described above. Each is output to the movement control unit 68B.

Upon receiving the input of the latest Z-axis relative position and X-axis relative position detection results from the relative position detection unit 90B, the movement control unit 68B receives the Z-axis motor 34 and X based on these Z-axis relative position and X-axis relative position. The shaft motor 44 is driven to move the housing 28 and the like and the housing 38 and the like to the opposed positions FZ and FX described above, respectively (step S141). As a result, the alignment of the pin holes 8Z and 8X with respect to the pins 7Z and 7X is automatically executed, respectively.

Then, when the alignment of the pin holes 8Z and 8X with respect to the pins 7Z and 7X is completed, the connection control unit 91B switches the pin insertion / removal units 6Z and 6X from the disconnection state to the connection state (step S161).

Since the processing after step S170 is the same as that of the first embodiment shown in FIG. 8 described above, a specific description thereof will be omitted here.

[Effect of Ophthalmic Device of Third Embodiment]
As described above, also in the ophthalmic apparatus 10 of the third embodiment, by switching the pin insertion / removal portions 6Z and 6X between the connected state and the disconnected state, it is possible to switch between the electric drive and the manual drive of the electric drive unit 14. Therefore, the same effect as that of the ophthalmic apparatus 10 of the first embodiment can be obtained. Further, in the ophthalmic apparatus 10 of the third embodiment, when the switching operation to the electric drive alignment mode or the like is performed by sequentially detecting the latest Z-axis relative position and the X-axis relative position in the manual drive alignment mode. , Housings 28 and 38 can be automatically moved to opposite positions FZ and FX, respectively. As a result, it is possible to switch to the electric drive alignment mode or the like in a shorter time than in the first embodiment.

In the third embodiment, when the operation for switching to the manual drive alignment mode is performed, the housings 28 and 38 may be automatically moved to the retracted positions RZ and RX, respectively, as in the first embodiment. Good. In this case, the relative position detection unit 90B detects the Z-axis relative position and the X-axis relative position with reference to the pin holes 8Z and 8X moved to the retracted positions RZ and RX.

[Ophthalmic apparatus of the fourth embodiment]
FIG. 17 is an explanatory diagram for explaining the configuration of the ophthalmic apparatus 10 of the fourth embodiment, particularly the electromagnets 96Z and 96X. In each of the above embodiments, the electric drive unit 14 is switched between electric drive and manual drive by switching the pin insertion / removal portions 6Z and 6X between the connected state and the disconnected state, but in the fourth embodiment, the electromagnet 96Z, The 96X is used to switch between the electric drive and the manual drive of the electric drive unit 14.

The fourth embodiment is basically the same as the first embodiment except for the configuration for switching between the electric drive and the manual drive of the electric drive unit 14, and therefore, the function or configuration is the same as that of the first embodiment. The same reference numerals are given and the description thereof will be omitted.

As shown in FIG. 17, a stopper 98Z is provided on the lower surface of the Z-axis base 21. Further, a stopper 98X is provided on the lower surface of the X-axis base 23.

The stopper 98Z moves in the Z-axis direction integrally with the measurement unit 15 via the Z-axis base 21, the X-axis drive unit 24, the X-axis base 23, and the Y-axis drive unit 25. Further, the stopper 98X moves in the X-axis direction integrally with the measurement unit 15 via the X-axis base 23 and the Y-axis drive unit 25. The stopper 98Z has a housing facing side surface facing the side surface of the housing 28, and the stopper 98X has a housing facing side surface facing the side surface of the housing 38.

The electromagnet 96Z is provided on the facing surface of the stopper 98Z facing the housing 28, and the electromagnet 96X is provided on the facing surface of the stopper 98X facing the housing 38. On the other hand, a magnetic body 97Z is provided at a position facing the electromagnet 96Z on the facing surface of the housing 28 facing the stopper 98Z, and magnetism is provided at a position facing the electromagnet 96X on the facing surface of the housing 38 facing the stopper 98X. A body 97X is provided. These magnetic materials 97Z and 97X correspond to the connected portion of the present invention, and for example, a permanent magnet is used.

The electromagnet 96Z is connected to the magnetic body 97Z by generating a magnetic attraction with the magnetic body 97Z in the connected state, and the electromagnet 96X is connected to the magnetic body 97X in the connected state. Connect with the magnetic material 97X. As a result, the Z-axis base 21 and the housing 28 are connected via the electromagnet 96Z, the magnetic body 97Z, and the stopper 98Z. Further, the X-axis base 23 and the housing 38 are connected via an electromagnet 96X, a magnetic body 97X, and a stopper 98X.

On the other hand, the electromagnets 96Z and 96X stop the generation of the above-mentioned magnetic attraction in the disconnected state, respectively. As a result, the connection between the Z-axis base 21 and the housing 28 is released, and the connection between the X-axis base 23 and the housing 38 is released.

The control unit 65 of the fourth embodiment functions as a movement control unit 68C and a connection control unit 91C in addition to the arithmetic processing unit 67 similar to that of the first embodiment.

The movement control unit 68C is different from the movement control unit 68 of the first embodiment in that the control performed in response to the switching operation to the manual drive alignment mode and the control performed in response to the switching operation to the electric drive alignment mode or the like. Except for the point, it is basically the same as the movement control unit 68.

Specifically, the movement control unit 68C drives the Z-axis motor 34 to move the housing 28 and the like to the retracted position TZ (see FIG. 18) in response to the switching operation to the manual drive alignment mode, and the X-axis motor 44. To move the housing 38 and the like to the retracted position TX (see FIG. 18). As shown in FIG. 18 described later, the retracted position TZ is set outside the moving range of the stopper 98Z that moves integrally with the Z-axis base 21 in response to the push-pull operation in the Z-axis direction, and the retracted position TX is set to the X-axis. It is set outside the moving range of the stopper 98X that moves integrally with the X-axis base 23 according to the push-pull operation in the direction.

Further, the movement control unit 68C drives the Z-axis motor 34 to move the housing 28 or the like toward the stopper 98Z and drives the X-axis motor 44 in response to the switching operation to the electric drive alignment mode or the like. The housing 38 and the like are moved toward the stopper 98X.

The connection control unit 91C switches the electromagnets 96Z and 96X to a connected state (a state in which an attractive force due to magnetism is generated with the magnetic body 97X) in response to the switching operation to the manual drive alignment mode. Further, the connection control unit 91C switches the electromagnets 96Z and 96X to the connection release state (the state in which the generation of the above-mentioned magnetic attraction is stopped) in response to the switching operation to the electric drive alignment mode or the like.

[Action of Ophthalmic Device of Fourth Embodiment]
<Manual drive alignment mode>
Next, the flow of measuring the eye characteristics of the eye E to be inspected in the manual drive alignment mode by the ophthalmic apparatus 10 of the fourth embodiment will be described. Since the flowchart showing the flow of this measurement is basically the same as the flowchart of the first embodiment shown in FIG. 7 described above, the illustration is omitted. Further, FIG. 18 is an explanatory diagram for explaining the control of the movement control unit 68C and the connection control unit 91C of the fourth embodiment.

As shown by reference numeral A4 in FIG. 18, in the electric drive alignment mode or the like, the electromagnets 96Z and 96X are connected to each other, so that the Z-axis base 21 and the housing 28 are connected and the X-axis base 23 is connected. And the housing 38 are connected.

Then, as shown in steps S10 to S30 of FIG. 7, when the monitor 16 switches to the manual drive alignment mode, the connection control unit 91C switches the electromagnets 96Z and 96X to the disconnection state. As a result, the connection between the Z-axis base 21 and the housing 28 is released, and the connection between the X-axis base 23 and the housing 38 is released.

Next, as shown in step S40 of FIG. 7 and reference numeral B4 of FIG. 18, the movement control unit 68C drives the Z-axis motor 34 to move the housing 28 and the like to the retracted position TZ, and drives the X-axis motor 44. Then, the housing 38 and the like are moved to the retracted position TX. As a result, in the manual drive alignment mode, the Z-axis base 21 and the stopper 98Z can be freely moved in the Z-axis direction by a push-pull operation in the Z-axis direction, and the X-axis base 23 and the stopper can be freely moved by a push-pull operation in the X-axis direction. 98X can be freely moved in the X-axis direction.

The connection control unit 91C controls the electromagnets 96Z and 96X to generate a magnetic repulsive force between the electromagnets 96Z and 96X and the magnetic material 97Z and 97X when the electromagnets 96Z and 96X are switched to the unconnected state. You may let me. As a result, the electromagnets 96Z and 96X and the magnetic materials 97Z and 97X can be reliably separated. Further, even if the Z-axis base 21 and the stopper 98Z are vigorously moved toward the housing 28 in the manual drive alignment mode, or the X-axis base 23 and the stopper 98X are vigorously moved toward the housing 38, the stopper The collision of the 98Z with the housing 28 and the collision of the stopper 98X with the housing 38 are prevented.

Since the subsequent processing (processing after step S50 in FIG. 7) is the same as that of the first embodiment described above, a specific description thereof will be omitted.

<Electric drive alignment mode and auto alignment mode>
FIG. 19 is a flowchart showing a flow of measurement processing of the eye characteristics of the eye E to be inspected in the electric drive alignment mode or the like by the ophthalmic apparatus 10 of the fourth embodiment having the above configuration. Since steps S140 in FIG. 19 are basically the same as those in the second embodiment described in FIG. 12 described above, specific description thereof will be omitted.

As shown in steps S140 and S143 of FIG. 19, when the monitor 16 switches to the electric drive alignment mode or the like, the connection control unit 91C switches the electromagnets 96Z and 96X to the connected state, respectively.

Next, as shown by reference numeral C4 in FIG. 18 and step S144 in FIG. 19, the movement control unit 68C drives the Z-axis motor 34 to move the housing 28 and the like toward the stopper 98Z, and moves the X-axis motor 44. It is driven to move the housing 38 and the like toward the stopper 98X. As a result, as shown in step S145 of FIG. 19, when the magnetic body 97Z of the housing 28 is close to the electromagnet 96Z, both are connected, and when the magnetic body 97X of the housing 38 is close to the electromagnet 96X, both are connected.

Even if the positions of the stoppers 98Z and 98X are unknown, the stopper 98Z is located on the moving path of the housing 28, and the stopper 98X is located on the moving path of the housing 38. Therefore, by continuing the movement of the housings 28 and 38, the electromagnets 96Z and 96X and the magnetic bodies 97Z and 97X can be reliably connected.

Further, by processing the facing surfaces of the stoppers 98Z and 98X and the facing surfaces of the housings 28 and 38 with high accuracy, the reproducibility when the housings 28 and 38 and the stoppers 98Z and 98X are connected is maintained. Can be done. As a result, it is possible to prevent the positional relationship between the drive pulse of the Z-axis motor 34 and the Z-axis base 21 after connection and the positional relationship between the drive pulse of the X-axis motor 44 and the X-axis base 23 from being displaced.

Since the processing after step S170 is the same as that of each of the above-described embodiments (see FIGS. 8, 12, and 16), specific description thereof will be omitted here.

[Effect of Ophthalmic Device of Fourth Embodiment]
As described above, also in the ophthalmic apparatus 10 of the fourth embodiment, by switching the electromagnets 96Z and 96X between the connected state and the disconnected state, it is possible to switch between the electric drive and the manual drive of the electric drive unit 14. , The same effect as that of the ophthalmic apparatus 10 of the first embodiment can be obtained.

In the fourth embodiment, the stoppers 98Z and 98X are provided with electromagnets 96Z and 96X, respectively, and the housings 28 and 38 are provided with magnetic bodies 97Z and 97X, respectively, but the present invention is not limited thereto. Absent. For example, the stoppers 98Z and 98X may be provided with magnetic bodies 97Z and 97X, respectively, and the housings 28 and 38 may be provided with electromagnets 96Z and 96X.

[Ophthalmic apparatus of the fifth embodiment]
FIG. 20 is an explanatory diagram for explaining the configuration of the ophthalmic apparatus 10 of the fifth embodiment, particularly the link mechanisms 100Z and 100X. In each of the above embodiments, the electric drive unit 14 is switched between electric drive and manual drive using the pin insertion / extraction units 6Z, 6X or the electromagnets 96Z, 96X, but in the fifth embodiment, the link mechanism 100Z, 100X is used to electrically drive the electric drive unit 14. The drive unit 14 is switched between electric drive and manual drive.

In the fifth embodiment, the configuration other than the configuration for switching between the electric drive and the manual drive of the electric drive unit 14 is basically the same as that of the first embodiment, so that the function or configuration is the same as that of the first embodiment. The same reference numerals are given and the description thereof will be omitted.

As shown in FIG. 20, a mounting portion 101Z of the link mechanism 100Z is provided on the lower surface of the Z-axis base 21. Further, a mounting portion 101X of the link mechanism 100X is provided on the lower surface of the X-axis base 23. The mounting portion 101Z moves in the Z-axis direction integrally with the measuring unit 15 via the Z-axis base 21, the X-axis drive portion 24, the X-axis base 23, and the Y-axis drive portion 25. Further, the mounting portion 101X moves in the X-axis direction integrally with the measuring unit 15 via the X-axis base 23 and the Y-axis driving portion 25.

One end of the link mechanism 100Z is rotatably attached to the lower surface of the Z-axis base 21 via the attachment portion 101Z, and the other end is rotatably attached to the upper surface of the housing 28. The Z-axis base 21 and the housing 28 And concatenate. Further, one end of the link mechanism 100X is rotatably attached to the lower surface of the X-axis base 23 via the attachment portion 101X, and the other end is rotatably attached to the upper surface of the housing 38. Connect with the housing 38. As a result, one end of the link mechanism 100Z moves integrally with the measuring unit 15 in the Z-axis direction, and one end of the link mechanism 100X moves integrally with the measuring unit 15 in the X-axis direction. Further, the other end of the link mechanism 100Z moves integrally with the housing 28 in the Z-axis direction, and the other end of the link mechanism 100X moves integrally with the housing 38 in the X-axis direction.

One end of the link mechanism 100Z may be attached to the lower surface of the Z-axis base 21 and one end of the link mechanism 100X may be attached to the lower surface of the X-axis base 23 without going through the attachment portions 101Z and 101X.

The link mechanisms 100Z and 100X are composed of a plurality of link members 104 that are oscillatingly connected to each other via joints 103. Specifically, in the link mechanisms 100Z and 100X, the other end of the link member 104 having one end attached to the attachment portions 101Z and 101X and the other end of the link member 104 having one end attached to the housings 28 and 38 form a joint 103. It has a structure that is oscillatingly connected via.

An actuator 105Z that drives the joint 103 is connected to the joint 103 of the link mechanism 100Z. Further, an actuator 105X for driving the joint 103 is connected to the joint 103 of the link mechanism 100X. These actuators 105Z and 105X correspond to the link mechanism drive unit of the present invention, and are composed of, for example, a pulse motor and a drive transmission mechanism (not shown). The actuators 105Z and 105X switch the link mechanism 100Z and 100X between the connected state and the disconnected state.

Further, the joint 103 of the link mechanism 100Z is provided with an angle detection sensor 106Z for detecting the angle of the joint 103, and the joint 103 of the link mechanism 100X is provided with an angle detection sensor 106X for detecting the angle of the joint 103. Has been done. Each angle detection sensor 106Z, 106X corresponds to the angle detection unit of the present invention. Then, the angle detection results of the angle detection sensors 106Z and 106X are output to the control unit 65 (the connection control unit 91D described later).

FIG. 21 is an explanatory diagram for explaining the link mechanisms 100Z and 100X in the connected state. Further, FIG. 22 is an explanatory diagram for explaining the link mechanisms 100Z and 100X in the disconnected state.

As shown in FIG. 21, the actuators 105Z and 105X set the joint 103 in a predetermined reference in the connected state under the control of the connection control unit 91D described later, which receives the input of the angle detection result from the angle detection sensors 106Z and 106X. After adjusting to the angle θ, fix it. As a result, when the housing 28 or the like is moved in the Z-axis direction by driving the Z-axis motor 34, the Z-axis base 21 is integrally moved in the Z-axis direction via the link mechanism 100Z and the mounting portion 101Z, and further, the Z-axis is further moved. The measuring unit 15 and the like on the shaft base 21 move integrally in the Z-axis direction. Further, when the housing 38 or the like is moved in the X-axis direction by driving the X-axis motor 44, the X-axis base 23 is integrally oriented in the X-axis direction via the link mechanism 100X and the mounting portion 101X, and further, the X-axis base 23 The measurement unit 15 and the like on the top move integrally in the X-axis direction.

As shown in FIG. 22, the actuators 105Z and 105X release the fixation of the joint 103 in the disconnected state. As a result, the link mechanism 100Z can be expanded and contracted in the Z-axis direction, and the link mechanism 100X can be expanded and contracted in the X-axis direction. Therefore, the relative movement of the Z-axis base 21 and the measuring unit 15 and the like in the Z-axis direction with respect to the housing 28 and the like is allowed, and the relative movement of the X-axis base 23 and the measuring unit 15 and the like with respect to the housing 38 and the like in the X-axis direction is allowed. Permissible. As a result, the electric drive unit 14 can be manually driven as in each of the above embodiments.

Returning to FIG. 20, the control unit 65 of the fifth embodiment functions as a movement control unit 68D and a connection control unit 91D in addition to the arithmetic processing unit 67 similar to that of the first embodiment.

The movement control unit 68D is basically the same as the movement control unit 68 of the first embodiment, except that the drive of the Z-axis motor 34 and the X-axis motor 44 is immediately stopped in response to the operation of switching to the manual drive alignment mode. It is the same.

The coupling control unit 91D drives the actuators 105Z and 105X, respectively, in response to the switching operation to the manual drive alignment mode, and switches the link mechanisms 100Z and 100X to the disengaged state (see FIG. 22), respectively. Further, the connection control unit 91D drives the actuators 105Z and 105X, respectively, based on the angle detection results of the angle detection sensors 106Z and 106X in response to the switching operation to the electric drive alignment mode and the like, and the link mechanism 100Z and 100X. Are switched to the connected state (see FIG. 21).

[Action of the ophthalmic device of the fifth embodiment]
<Manual drive alignment mode>
FIG. 23 is a flowchart showing the flow of measuring the eye characteristics of the eye E to be inspected in the manual drive alignment mode by the ophthalmic apparatus 10 of the fifth embodiment having the above configuration.

As shown in steps S10 and S20 of FIG. 23, when the monitor 16 switches to the manual drive alignment mode, the connection control unit 91D drives the actuators 105Z and 105X to release the fixation of the joint 103. As a result, the link mechanisms 100Z and 100X are switched to the disconnected state (step S35). As a result, the relative movement of the Z-axis base 21 and the like with respect to the housing 28 in the Z-axis direction and the relative movement of the X-axis base 23 with respect to the housing 38 in the X-axis direction are possible, so that the electric drive unit 14 can be manually driven. It will be possible.

Since the subsequent processing (step S50 and subsequent steps) is the same as that of the first embodiment described above, a specific description thereof will be omitted.

<Electric drive alignment mode and auto alignment mode>
FIG. 24 is a flowchart showing the flow of measurement processing of the eye characteristics of the eye E to be inspected in the electrically driven alignment mode or the like by the ophthalmic apparatus 10 of the fourth embodiment having the above configuration. Since steps S140 in FIG. 24 are basically the same as those in the second embodiment (see FIG. 12) described above, a specific description thereof will be omitted.

As shown in step S140 of FIG. 24, when the monitor 16 switches to the electric drive alignment mode or the like, the angle detection sensors 106Z and 106X each detect the angle of the joint 103, and the angle of the joint 103. The detection result is output to the connection control unit 91D (step S146).

Upon receiving the input of the angle detection result of the joint 103 from the angle detection sensors 106Z and 106X, the connection control unit 91D drives the actuators 105Z and 105X based on the angle detection result to set the joint 103 to a predetermined reference angle. After adjusting to θ, fix it. As a result, the link mechanisms 100Z and 100X are switched to the connected state (step S147). As a result, the Z-axis base 21, the measuring unit 15, and the housing 28 can be integrally moved in the Z-axis direction via the link mechanism 100Z. Further, the X-axis base 23, the measuring unit 15, and the housing 38 are integrally movable in the X-axis direction via the link mechanism 100X.

The method of adjusting the joints 103 of the link mechanisms 100Z and 100X to the reference angle θ and then fixing the joints 103 is not limited to the method of driving the actuators 105Z and 105X. For example, based on the angle detection result of each joint 103, the movement control unit 68D drives the Z-axis motor 34 and the X-axis motor 44, respectively, to move the housing 28 and the like relative to the Z-axis direction, and to move the housing 38 and the like X. Each joint 103 may be adjusted to the reference angle θ by moving relative to the axial direction. In this case, instead of the actuators 105Z and 105X, a lock mechanism (link mechanism drive unit) that can switch between fixing and releasing each joint 103 is provided, and each joint 103 is adjusted to the reference angle θ. Later, each joint 103 is fixed by a locking mechanism.

[Effect of Ophthalmic Device of the Fifth Embodiment]
As described above, also in the ophthalmic apparatus 10 of the fifth embodiment, the electric drive and the manual drive of the electric drive unit 14 can be switched by switching the link mechanisms 100Z and 100X between the connected state and the disconnected state. Therefore, the same effect as that of the ophthalmic apparatus 10 of the first embodiment can be obtained.

Further, in the fifth embodiment, when the link mechanisms 100Z and 100X are switched to the connected state, that is, when the angle of the joint 103 is adjusted to the reference angle θ, the positional relationship between the housing 28 and the mounting portion 101Z in the Z-axis direction, and The positional relationship between the housing 38 and the mounting portion 101X in the X-axis direction can be kept constant. Therefore, even when the manual drive alignment mode is switched to the electric drive alignment mode or the like, the positional relationship between the drive pulse of the Z-axis motor 34 and the Z-axis base 21 and the drive pulse of the X-axis motor 44 and the X-axis It is possible to prevent the positional relationship with the base 23 from deviating from the above-mentioned electric drive alignment mode or the like.

[Ophthalmic apparatus of the sixth embodiment]
When the ophthalmic apparatus 10 of each of the above embodiments is switched to the electric drive alignment mode, the Z-axis direction of the measuring unit 15 and the Z-axis direction of the measuring unit 15 and the magnitude of the tilt angle in the X-axis direction of the operating lever 17 Switch between coarse movement and fine movement in the X-axis direction. At this time, in the conventional manual drive type device, the coarse movement of the measurement unit 15 is pushed in the Z-axis direction and the X-axis direction (horizontal direction) with respect to the operation lever 17 as in the manual drive alignment mode of the present embodiment. It is usually done by pulling. Therefore, the ophthalmic apparatus 10 of each of the above embodiments has a different operation method from the conventional apparatus for coarsely moving the measurement unit 15 in the electric drive alignment mode, which may give an operator a sense of discomfort.

Therefore, in the ophthalmic apparatus 10 of the sixth embodiment, when the electric drive alignment drive mode is switched, the measurement unit 15 is moved in the Z-axis direction and in response to the push-pull operation in the Z-axis direction and the X-axis direction with respect to the operation lever 17. Coarse motion control is performed to electrically coarsely move in the X-axis direction. Since the ophthalmic apparatus 10 of the sixth embodiment has basically the same configuration as the ophthalmic apparatus 10 of the first embodiment, the same reference numerals are given to those having the same function or configuration as the first embodiment. The description thereof will be omitted.

FIG. 25 is an enlarged view of the housings 28 and 38 and the nuts 32 and 42 of the ophthalmic apparatus 10 of the sixth embodiment. As shown in FIG. 25, between the facing surfaces of both the housing 28 and the nut 32 facing each other in the Z-axis direction, a Z-axis that detects a change in pressure in the Z-axis direction due to a push-pull operation in the Z-axis direction is detected. A pressure sensor 60 is provided. Further, an X-axis pressure sensor 61 for detecting a change in pressure in the X-axis direction due to a push-pull operation in the X-axis direction is provided between the facing surfaces of both the housing 38 and the nut 42 facing each other in the X-axis direction. Has been done.

In addition to the operating lever 17, the pressure sensors 60 and 61 are in the Z-axis direction and the X-axis direction with respect to at least one of the measurement unit 15, the Z-axis base 21, the X-axis base 23, and the Y-axis drive unit 25. When a push-pull operation is performed, the change in pressure due to this push-pull operation is detected.

FIG. 26 is a block diagram showing an electrical configuration of the control unit 65 of the ophthalmic apparatus 10 of the sixth embodiment. As shown in FIG. 26, the control unit 65 of the sixth embodiment has basically the same configuration as the control unit 65 of the first embodiment except that it functions as a movement control unit 68E different from that of the first embodiment. Is.

The movement control unit 68E electrically drives the electric drive unit 14 in response to a push-pull operation on the operation lever 17 or the like in the electric drive alignment mode to perform coarse movement in the Z-axis direction and the X-axis direction of the measurement unit 15. Except for the above, it is the same as the movement control unit 68 of the first embodiment. The movement control unit 68E controls the drive of any of the motors 34 and 44 based on the positive / negative and absolute values of the pressure detected by each of the pressure sensors 60 and 61 in the electric drive alignment mode. Start dynamic control.

Specifically, the movement control unit 68 determines the operation direction of the push-pull operation in the Z-axis direction or the X-axis direction according to the positive or negative of the pressure detected by any of the pressure sensors 60 and 61, and this pressure. The moving speed of the measuring unit 15 is determined according to the magnitude of the absolute value of. Then, the movement control unit 68 drives one of the motors 34 and 44 according to the determined operation direction and movement speed, thereby causing the measurement unit 15 to roughly move according to the direction and speed corresponding to the push-pull operation.

When the magnitude of the absolute value of the pressure detected by any of the pressure sensors 60 and 61 is less than a predetermined threshold value, the movement control unit 68E is in the Z-axis direction and the X-axis direction of the measurement unit 15. Stop coarse motion control. As a result, the measuring unit 15 does not move slightly even if the operator accidentally tilts the operating lever 17. Therefore, in the electric drive alignment mode, the operator can tilt or rotate the operating lever 17 to finely move the measuring unit 15 in each axial direction in the XYZ axial directions.

[Effect of the sixth embodiment]
As described above, in the ophthalmic apparatus 10 of the sixth embodiment, in the electric drive alignment mode, the measurement unit 15 is roughly moved by a horizontal push-pull operation, that is, an operation equivalent to a conventional horizontal movement operation of the operating lever 17. be able to. Further, since the measurement unit 15 can be electrically moved by the electric drive unit 14, even if the measurement unit 15 is a heavy object, it is prevented from burdening the operator. Further, in this case, since it is only necessary to provide the pressure sensors 60 and 61 in the electric drive unit 14, it can be realized with a simple configuration. As a result, the operation related to the coarse movement of the measurement unit 15 that does not give the operator a sense of discomfort can be realized with a simple configuration.

The ophthalmic apparatus 10 of the second to fifth embodiments is also provided with the pressure sensors 60 and 61 as in the sixth embodiment, and is electrically driven based on the detection results of the pressure sensors 60 and 61. By electrically driving the unit 14, the same effect as that of the sixth embodiment can be obtained.

[Other]
As the connecting portion of the present invention for switching between the electric drive and the manual drive of the electric drive unit 14, the pin insertion / removal portions 6Z and 6X are used in the first to third embodiments, and the electromagnets 96Z and 96X in the fourth embodiment. In the fifth embodiment, the link mechanisms 100Z and 100X are used, but the present invention is not limited to these, and various connecting portions may be used. For example, in the first to third embodiments, the electric drive unit is brought into contact with (close to) or separated from the housings 28 and 38 containing at least a part of the magnetic material by an electromagnet or a permanent magnet. The electric drive and the manual drive of 14 may be switched.

In the first and second embodiments, the relative position detection unit 90 detects the Z-axis relative position and the X-axis relative position based on the captured image data captured by the camera 9Z and the camera 9X, respectively. However, the present invention is not limited to this. For example, the Y-axis relative position and the X-axis relative position may be detected by using the photo interrupters 94Z and 94X as in the third embodiment. Further, instead of using the photo interrupters 94Z and 94X in the third embodiment, the Z-axis relative position and the X-axis relative position may be detected by another method. That is, as the method for detecting the Z-axis relative position and the X-axis relative position in each of the above embodiments, various known methods can be used.

In each of the above embodiments, the housings 28 and 38 are detachably connected to the shaft bases 21 and 23, but the nuts 32 and 42 are detachably connected to the shaft bases 21 and 23, respectively. You may.

In each of the above embodiments, the movement of the measurement unit 15 in the Z-axis direction and the X-axis direction can be switched between electric and manual, but the movement of the measurement unit 15 in the Y-axis direction can also be switched between electric and manual. It may be.

In each of the above embodiments, motors 34, 44 and the like have been described as examples of drive sources for moving the housing 28 in the Z-axis direction and the housing 38 in the X-axis direction, but various known drive sources are used. You may.

In each of the above embodiments, the Z-axis drive unit 22 and the Z-axis base 21, the X-axis drive unit 24 and the X-axis base 23, and the Y-axis drive unit 25 are provided from the lower side to the upper side in the Y-axis direction. However, the order of these may be changed as appropriate. Further, the configuration in which the electric drive unit 14 moves the measurement unit 15 in each axial direction of the XYZ axes is not limited to the configuration shown in FIG. 1 and the like, and may be arbitrarily changed.

In each of the above embodiments, the case where the measurement unit 15 is movably held in each axial direction of the XYZ axes with respect to the main body base 12 by the electric drive unit 14 has been described, but at least one of these axial directions has been described. The present invention can also be applied to the case where it is held so as to be movable in a direction.

6Z, 6X ... Pin insertion / removal part, 7Z, 7X ... Pin, 8Z, 8X ... Pin hole, 9Z, 9X ... Camera, 10 ... Ophthalmology device, 12 ... Main body base, 14 ... Electric drive unit, 15 ... Measurement unit, 17 ... Operation lever, 22 ... Z-axis drive unit, 24 ... X-axis drive unit, 28, 38 ... housing, 32, 42 ... nut, 60 ... Z-axis pressure sensor, 61 ... X-axis pressure sensor, 65 ... control unit, 68 ... Movement control unit, 90 ... relative position detection unit, 91 ... connection control unit, 96Z, 96X ... electromagnet, 97Z, 97X ... magnetic material, 100Z, 100X ... link mechanism

Claims (9)

With the base
An eye characteristic acquisition unit that is movably held in a predetermined axial direction with respect to the base and acquires the eye characteristics of the eye to be inspected.
A drive source provided on the base and moving the moving body in the axial direction,
A connected state in which the eye characteristic acquisition unit is integrally moved with the moving body in the axial direction as the moving body is moved by the drive source, and a relative movement of the eye characteristic acquisition unit with respect to the moving body in the axial direction. Allowable disconnection state, switchable connection part,
An ophthalmic device equipped with. A switching operation unit that performs a switching operation for switching the connecting unit from one of the connected state and the disconnected state to the other state.
A connection control unit that switches the connection unit from the one state to the other state in response to the switching operation performed by the switching operation unit.
The ophthalmic apparatus according to claim 1. One of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the other of the connecting portion and the connected portion is the moving body. It moves integrally in the axial direction and
A first movement control unit that controls the drive of the drive source to move the moving body to a predetermined evacuation position when the connection unit is switched to the disconnection state by the connection control unit.
When the connection control unit switches the connection unit to the disengagement state, the alignment operation unit performs a positioning operation for manually aligning one position with the other position.
With
The ophthalmology according to claim 2, wherein when the alignment operation is performed by the alignment operation unit, the connection control unit switches the connection unit from the disconnection state to the connection state in response to the switching operation. apparatus. A relative position detecting unit for detecting a relative position between the one and the other is provided.
When the connection control unit determines that the alignment of the one with respect to the other is completed based on the detection result of the relative position detection unit, the connection control unit changes the connection unit from the disconnection state in response to the switching operation. The ophthalmic apparatus according to claim 3, wherein the ophthalmic apparatus is switched to a connected state. One of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the other of the connecting portion and the connected portion is the moving body. It moves integrally in the axial direction and
A relative position detecting unit for detecting a relative position between the one and the other is provided.
When the connection unit is switched from the connection state to the disconnection state by the connection control unit, the drive of the drive source is controlled based on the detection result of the relative position detection unit, and the other is the one. The second movement control unit that follows and moves with respect to
2. The ophthalmic apparatus according to claim 2. One of the connecting portion and the connected portion to which the connecting portion is connected moves in the axial direction integrally with the eye characteristic acquisition portion, and the other of the connecting portion and the connected portion is the moving body. It moves integrally in the axial direction and
A relative position detection unit that detects the relative position between the one and the other,
When the switching operation for switching the connected portion in the disconnected state to the connected state is performed by the switching operation unit, the drive of the drive source is controlled based on the detection result of the relative position detection unit. A third movement control unit that aligns the other position with the one position,
With
The ophthalmic apparatus according to claim 2, wherein the connection control unit switches the connection unit from the disconnection state to the connection state when the other movement control unit aligns the other with respect to the one. .. The connected portion is a pin hole and
The connection portion according to any one of claims 3 to 6, wherein the connecting portion is a pin insertion / removal portion in which a pin is inserted into the pin hole in the connected state and the pin is pulled out from the pin hole in the disconnected state. Ophthalmic device. The connected portion is a magnetic material and is
According to any one of claims 3 to 6, the connecting portion is an electromagnet that generates an attractive force due to magnetism with the magnetic body in the connected state and stops the generation of the attractive force in the disconnected state. The ophthalmic device described. The connecting portion is a link mechanism having a plurality of link members oscillatingly connected to each other via joints, one end of which moves in the axial direction integrally with the eye characteristic acquisition portion and the other end. Is a link mechanism that moves in the axial direction integrally with the moving body.
An angle detection unit that detects the angle of the joint and
In the connected state, the angle of the joint is fixed at a predetermined reference angle based on the detection result of the angle detecting unit, and in the disconnected state, the link mechanism driving unit that releases the fixation of the joint.
The ophthalmic apparatus according to claim 1 or 2.

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