JP6804321B2 - Ophthalmic device and its operation method - Google Patents

Description

The present invention relates to an ophthalmic apparatus for measuring eye characteristics of an eye to be inspected and a method of operating the same.

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 characteristic 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.

Patent Documents 1 and 2 describe an ophthalmic apparatus in which a measuring unit is moved by an electric drive unit. In the ophthalmic apparatus described in Patent Documents 1 and 2, for example, the driving unit is controlled by tilting the operating lever to move the measuring unit. As a result, manual alignment can be performed by tilting the operating lever. Further, in the ophthalmic apparatus described in Patent Documents 1 and 2, the alignment of the measuring unit with respect to the eye to be inspected is detected, the drive of the drive unit is controlled based on the detection result, and the alignment is automatically performed, so-called full auto alignment (hereinafter referred to as “full auto alignment”). , Simply called auto alignment) is possible.

By the way, in recent years, the number of functions of ophthalmic devices has increased, and it has become difficult to perform all operations of ophthalmic devices with only the operation lever. Therefore, Patent Document 3 describes an ophthalmic apparatus including a touch panel monitor in addition to the operation lever. On this touch panel monitor, an operation screen (icon or the like) related to acquisition of eye characteristics of the eye to be inspected performed by an ophthalmic apparatus is displayed. Then, in the ophthalmic apparatus described in Patent Document 3, the apparatus main body that measures the eye characteristics of the eye to be inspected is operated by touching the icon of the operation screen displayed in the screen of the touch panel monitor. It is driven to start auto-alignment, stop auto-alignment in an emergency, and output measurement results of eye characteristics.

JP-A-2015-234 Japanese Unexamined Patent Publication No. 2014-23960 JP-A-2015-167683

However, in the ophthalmic apparatus described in Patent Document 3, when performing various operations related to the movement control of the measurement unit, the icon of the operation screen displayed in a limited area on the screen of the touch panel monitor and the like Need to be touch-operated. Therefore, the operator cannot perform an intuitive operation unlike the case of operating the operation lever.

In addition, the operation of acquiring the eye characteristics of the eye to be inspected by the ophthalmologic apparatus includes a plurality of operation stages such as before the measurement of the eye measurement, during the execution of the auto alignment, and after the completion of the eye measurement. Then, the types of operation control of the ophthalmic apparatus (for example, the start of the above-mentioned auto-alignment, the emergency stop of the auto-alignment, the output of the measurement result of the eye characteristics, etc.) executed in each operation stage are not necessarily the same but different. There is also.

Therefore, as in the case of the ophthalmic apparatus described in Patent Document 3, when the operation screen icon displayed on the touch panel monitor is touch-operated to control the operation of the ophthalmic apparatus according to each operation stage, the operation is performed. It will be necessary to prepare corresponding operation screens (icons) for each stage. As a result, the number of operation screens and the number of icons increase, so that it takes time for the operator to find a desired icon from the operation screen corresponding to the current operation stage. Therefore, for example, when it is necessary to make an emergency stop of the auto alignment, it becomes difficult for the operator to quickly find the emergency stop icon and perform a touch operation. As a result, there arises a problem that the operability of the ophthalmic apparatus is significantly reduced.

The present invention has been made in view of such circumstances, and among a plurality of operation stages included in the acquisition operation of the eye characteristics of the eye to be inspected, the start operation of the operation control of the apparatus main body corresponding to the current operation stage. It is an object of the present invention to provide an ophthalmic apparatus and an operation method thereof that can be intuitively performed by an operator without deteriorating operability.

The ophthalmic apparatus for achieving the object of the present invention includes an operation of the apparatus main body that acquires the eye characteristics of the eye to be inspected, a plurality of operation stages included in the acquisition operation, and an operation of the apparatus main body corresponding to each of the plurality of operation stages. The start operation is detected by the correspondence acquisition unit that acquires the correspondence between the control, the operation detection unit that is the start operation of the operation control and detects a common start operation at a plurality of operation stages, and the operation detection unit. In this case, the determination unit and the determination unit determine the current operation stage from a plurality of operation stages, refer to the correspondence acquired by the correspondence acquisition unit, and determine the operation control corresponding to the current operation stage. It is provided with a control unit that operates the apparatus main body according to the operation control determined by.

According to this ophthalmic apparatus, it is possible to start the operation control of the apparatus main body, which is predetermined in each operation stage of the measurement operation of the eye characteristics of the eye to be inspected, by performing a common start operation in each operation stage. As a result, it is not necessary to display a large number of icons for starting a large number of operation controls on the operation screen of the monitor, or to memorize a large number of operation patterns by the operator.

In the ophthalmic apparatus according to another aspect of the present invention, the correspondence relationship is associated with the type of motion control and the type of start operation predetermined for the type of motion control for each of a plurality of motion stages. When the start operation is detected by the operation detection unit, the determination unit determines the type of operation control corresponding to both the current operation stage and the type of the start operation by referring to the correspondence relationship. .. This eliminates the need for displaying a large number of icons for starting a large number of operation controls on the operation screen of the monitor or for the operator to memorize a large number of operation patterns, thus improving the operability of the operator. It can be improved further.

In the ophthalmic apparatus according to another aspect of the present invention, the main body of the apparatus is a base, an eye characteristic acquisition unit for acquiring eye characteristics, and an eye characteristic acquisition unit provided on the base in a predetermined axial direction with respect to the base. A moving drive unit is provided, and the plurality of operation stages include the first operation stage before the start of acquisition of the eye characteristics of the eye to be inspected by the apparatus main body, and the correspondence relationship corresponds to the first operation stage. As motion control, alignment start control that controls the drive of the drive unit to start the alignment of the eye characteristic acquisition unit with respect to the eye to be inspected, and the subject that controls the drive of the drive unit to acquire the eye characteristic by the eye characteristic acquisition unit. The left / right switching movement control that switches the optometry from one of the left and right eyes to the other is stored. As a result, the operator can start the alignment start control or the left / right switching movement control only by performing the above-mentioned start operation in the first operation stage, so that the operability of the operator can be improved.

In the ophthalmic apparatus according to another aspect of the present invention, the main body of the apparatus is a base, an eye characteristic acquisition unit for acquiring eye characteristics, and an eye characteristic acquisition unit provided on the base in a predetermined axial direction with respect to the base. A moving unit is provided, and the plurality of operation stages include a second operation stage in which the drive unit moves the eye characteristic acquisition unit in the direction toward the eye to be inspected, and the corresponding relationship includes the second operation. As the operation control corresponding to the stage, the first stop control in which the drive of the drive unit is controlled to move the eye characteristic acquisition unit in the direction away from the eye to be inspected and then stopped is stored. As a result, the operator can start the first stop control only by performing the above-mentioned start operation in the second operation stage, so that the operability of the operator can be improved.

In the ophthalmic apparatus according to another aspect of the present invention, the main body of the apparatus is a base, an eye characteristic acquisition unit for acquiring eye characteristics, and an eye characteristic acquisition unit provided on the base in a predetermined axial direction with respect to the base. The plurality of operation stages include a third operation stage in which the drive unit moves the eye characteristic acquisition unit in a direction different from the direction toward the eye to be inspected. As the operation control corresponding to the third operation stage, the second stop control for controlling the drive of the drive unit and stopping the movement of the eye characteristic acquisition unit is stored. As a result, the operator can start the second stop control only by performing the above-mentioned start operation in the third operation stage, so that the operability of the operator can be improved.

In the ophthalmic apparatus according to another aspect of the present invention, the apparatus main body has an output unit for outputting the acquisition result of the eye characteristics of the eye to be inspected, and the apparatus main body acquires the eye characteristics of the eye to be inspected at a plurality of operation stages. The fourth operation stage after the completion of the above is included, and the correspondence relationship stores the output execution control that causes the output unit to execute the output of the acquisition result as the operation control corresponding to the fourth operation stage. As a result, the operator can start the output execution control only by performing the above-mentioned start operation in the fourth operation stage, so that the operability of the operator can be improved.

In the ophthalmic apparatus according to another aspect of the present invention, the apparatus main body is provided on a base, an eye characteristic acquisition unit for acquiring eye characteristics, and an eye characteristic acquisition unit provided on the base in a predetermined axial direction with respect to the base. The operation detection unit includes a drive unit to be moved, and the operation detection unit detects a push-pull operation of pushing or pulling at least one of the eye characteristic acquisition unit and the drive unit in the axial direction as a start operation, and the determination unit operates. Based on the detection result of the push-pull operation by the detection unit, the operation control corresponding to the current operation stage is determined. As a result, predetermined motion control can be started at each motion stage of the measurement motion of the eye characteristics of the eye to be inspected by performing a push-pull operation at each motion stage.

In the ophthalmic apparatus according to another aspect of the present invention, the operation detection unit detects the operation direction of the push-pull operation and the magnitude of the pressure of the push-pull operation, and the determination unit determines the magnitude of the pressure detected by the operation detection unit. When the value is less than the predetermined threshold value, the operation control is determined according to the current operation stage, and the drive unit sets the eye characteristic acquisition unit when the pressure detected by the operation detection unit is greater than or equal to the threshold value. Move in the operating direction of the push-pull operation at a speed corresponding to the magnitude of the pressure. As a result, the operator can intuitively select between the movement of the eye characteristic acquisition unit by the drive unit and the operation control of the device main body by increasing or decreasing the force of the push-pull operation. In addition, execution of control unintended by the operator is prevented.

In the ophthalmic apparatus according to another aspect of the present invention, the drive unit includes a first engaging portion that moves integrally with the eye characteristic acquisition portion, a second engaging portion that engages with the first engaging portion, and a second. A drive source for moving the engaging portion along the axial direction is provided, the first engaging portion and the second engaging portion have facing surfaces facing each other in the axial direction, and the operation detecting portion is a first. A pressure sensor connected to both facing surfaces of the engaging portion and the second engaging portion, and a pressure sensor that is compressed or extended between both facing surfaces according to the operation direction of the push-pull operation. is there. As a result, the push-pull operation (operation direction and pressure of the push-pull operation) can be detected with a simple configuration using a pressure sensor.

In the ophthalmic apparatus according to another aspect of the present invention, the operation detection unit is a contact sensor that detects a contact operation by an operator as a start operation. As a result, predetermined motion control can be started at each motion stage of the measurement motion of the eye characteristics of the eye to be inspected by performing a contact operation at each motion stage.

In the ophthalmic apparatus according to another aspect of the present invention, the operation detection unit is a motion sensor that detects a predetermined operation of the operator as a start operation. As a result, it is possible to start the predetermined motion control at each motion stage of the measurement motion of the eye characteristics of the eye to be inspected by the operator performing a predetermined motion at each motion stage.

In the method of operating the ophthalmic apparatus for achieving the object of the present invention, in the method of operating the ophthalmic apparatus including the main body of the device for acquiring the eye characteristics of the eye to be inspected, a plurality of correspondence acquisition units are included in the acquisition operation. The acquisition process for acquiring the correspondence between the operation stage and the operation control of the device main body corresponding to each of the plurality of operation stages, and the operation detection unit are the start operations of the operation control and are common to the plurality of operation stages. The detection process for detecting the start operation and the determination unit determine the current operation stage from a plurality of operation stages when the operation detection unit detects the start operation, and the correspondence relationship acquired by the correspondence acquisition unit is determined. With reference to this, it has a determination step of determining the operation control corresponding to the current operation stage, and a control step of the control unit operating the apparatus main body according to the operation control determined by the determination unit.

The ophthalmic apparatus and the operating method of the present invention reduce the operability of the start operation of the operation control of the apparatus main body corresponding to the current operation stage among the plurality of operation stages included in the acquisition operation of the eye characteristics of the eye to be inspected. The operator can do it intuitively without having to do it.

It is a side view of the ophthalmic apparatus of this invention. It is sectional drawing which follows line 2-2 in FIG. It is explanatory drawing for demonstrating the movement operation of the measuring unit in the Z-axis direction and the X-axis direction using an operation lever. It is explanatory drawing for demonstrating the kind of push-pull operation in the Z-axis direction. It is explanatory drawing for demonstrating the kind of push-pull operation in the X-axis direction. It is a side view of the Z-axis pressure sensor which detects the change of the pressure in the Z-axis direction with the push-pull operation in the Z-axis direction. It is explanatory drawing for demonstrating the detection of the pressure in the Z-axis direction by the Z-axis pressure sensor when the push-pull operation in the Z-axis direction is performed. It is a block diagram which shows the electrical structure of the control part provided in an ophthalmic apparatus. It is explanatory drawing for demonstrating the coarse movement control in the Z-axis direction and the X-axis direction of a measurement unit by a movement control unit. It is a graph which showed an example of the pressure change which shows the relationship between the pressure and time detected by the Z-axis pressure sensor and the X-axis pressure sensor at the time of coarse movement control, respectively. It is explanatory drawing which showed an example of correspondence relation information. It is explanatory drawing for demonstrating operation control "left-right switching movement control to a left eye (right eye) measurement position". It is explanatory drawing for demonstrating operation control "first alignment stop control". It is a flowchart for demonstrating the flow of the operation control decision by a determination part and the execution of the operation control decided by a decision part. It is a flowchart which shows the flow of the measurement of the eye characteristic by the ophthalmic apparatus of the said structure. It is explanatory drawing for demonstrating correspondence relation information of another embodiment. It is a flowchart which shows the flow of determination and execution of operation control of an apparatus main body in manual alignment mode, and execution of coarse movement control of a measurement unit. It is explanatory drawing for demonstrating the detection of the push-pull operation in the Z-axis direction and the X-axis direction by another structure. It is explanatory drawing for demonstrating the modification of the start operation of the operation control of the apparatus main body.

[Configuration of ophthalmic equipment]
FIG. 1 is a side view of the ophthalmic apparatus 10 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) corresponding to the base of the present invention, a face support portion 13, and an electric drive portion 14 corresponding to the drive portion of the present invention. The measurement unit 15, the monitor 16, the operation lever 17, and the output unit 18 (corresponding to the acquisition result of the present invention) corresponding to the eye characteristic acquisition unit of the present invention are output. 8) and. The main body base 12, the electric drive unit 14, the measurement unit 15, and the output unit 18 perform a measurement operation of the eye characteristics of the eye E to be inspected from the start of measurement of the eye characteristics of the eye E to the output of the measurement result (in the present invention). The device main body 10a of the ophthalmic device 10 that performs (corresponding to the acquisition operation) is configured.

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 the 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. 8) described later, the electric drive unit 14 moves the measurement unit 15 with respect to the main body base 12 in each axial direction of the XYZ axes, thereby causing the measurement unit for the eye to be inspected E. Perform 15 alignments. The movement of the measurement unit 15 includes, for example, the movement of the measurement unit 15 to a position where the anterior segment image of the eye to be inspected E can be acquired, and the movement of the measurement unit 15 when the eye to be inspected E to be measured is switched left and right. Coarse movement (high-speed movement) when performing the above, and fine movement (low-speed movement) when performing precise alignment in a narrow range, for example, 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).

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 provided on the main body base 12, which will be described later, and is held movably in the Z-axis direction by the Z-axis drive unit 22. 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, a housing 28 (corresponding to the first engaging portion of the present invention) is provided on the lower surface of the Z-axis base 21 so as to be located between two pairs of bearings 27 in the X-axis direction (corresponding to the first engaging portion of the present invention). (See FIG. 2). 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. As the nut 32 moves in the Z-axis direction, the housing 28 integrally with the measuring 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. Move in the 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 (corresponding to the second engaging portion of the present invention), and the like. A feed screw 33 and a Z-axis motor 34 are provided.

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 lead 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. 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. 8) 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 can be further moved in the Z-axis direction via the housing 28. 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 (corresponding to the first engaging portion of the present invention) 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 engages with a nut 42, which will be described later, and as the nut 42 moves in the X-axis direction, the housing 38 integrally with the measurement unit 15 in the X-axis direction via the X-axis base 23 and the Y-axis drive unit 25. Move to.

The X-axis drive unit 24 is provided on the Z-axis base 21. 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 second engaging portion of the present invention, 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, the X-axis motor 44 rotationally drives the feed screw 33 under the control of the control unit 65 (see FIG. 8) described later, thereby bringing the housing 38 and the X-axis base 23 to the main body base 12 via the nut 42. On the other hand, it can move relative to the X-axis direction. 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. 8), 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 movement 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.

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 E to be inspected, etc.) to a control unit 65 (see FIG. 8) described later, and determines the eye characteristics of the eye E to be inspected. 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.

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 the measurement of the eye characteristics of the eye to be inspected E can be started by pressing the measurement button.

The operation lever 17 is an operation unit for manually moving the measurement unit 15 in each axial direction of the XYZ axes. For example, by rotating the operating lever 17 around its longitudinal axis (rotating clockwise or counterclockwise), the Y-axis motor 54 described above is driven, and the measuring unit 15 moves in the Y-axis direction (vertical direction). To do. 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 and the fine movement in the Y-axis direction of the measuring unit 15 can be switched. The rotation angle of the operating lever 17 is detected by, for example, the Y potentiometer 56Y (see FIG. 8), which is a rotary potentiometer.

FIG. 3 is an explanatory diagram for explaining the movement operation of the measurement unit 15 in the Z-axis direction and the X-axis direction (horizontal direction) using the operation lever 17. In the present embodiment, the Z-axis direction and the X-axis direction correspond to the predetermined axial directions of the present invention. Further, in the present embodiment, the operating lever 17 is provided on the X-axis base 23, but it may be provided at another portion in the ophthalmic apparatus 10.

As shown in FIG. 3, in the movement operation of the measuring unit 15 in the Z-axis direction and the X-axis direction using the operating lever 17, a tilting operation (fine movement) when the measuring unit 15 is finely moved in the Z-axis direction and the X-axis direction. There are two types of operations including an operation) and a push-pull operation (also referred to as a coarse movement operation) in which the measuring unit 15 is roughly moved in the Z-axis direction and the X-axis direction.

As shown in the upper part of FIG. 3, the Z-axis motor 34 or the X-axis motor 44 described above is driven by performing the tilting operation of tilting the operating lever 17 in the Z-axis direction or the X-axis direction, and the measuring unit 15 is moved. It moves (finely moves) in the Z-axis direction or the X-axis direction. At this time, since the Z-axis motor 34 or the X-axis motor 44 is driven at a lower speed than during the push-pull operation described later, the measurement unit 15 moves in the Z-axis direction or the X-axis direction at a lower speed than during the push-pull operation. That is, it moves finely.

The moving speed of the measuring unit 15 can be adjusted by adjusting the tilt angle when the operating lever 17 is tilted. 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. 8), which are linear potentiometers.

As shown in the lower part of FIG. 3, when the push-pull operation (horizontal movement operation) of pushing or pulling the operation lever 17 in the Z-axis direction or the X-axis direction without tilting the operation lever 17 is performed, the operation lever is operated. The X-axis base 23 is pressed in the Z-axis direction or the X-axis direction via the 17.

For example, when the X-axis base 23 is pressed in the Z-axis direction, the nut 32, which is a member that moves in the Z-axis direction, and the housing 28, which is a member that engages with the nut 32 and moves in the Z-axis direction. The pressure in the Z-axis direction changes between them. Further, for example, when the X-axis base 23 is pressed in the X-axis direction, the nut 42, which is a member that moves in the X-axis direction, and the housing 38, which is a member that engages with the nut 42 and moves in the X-axis direction. The pressure in the X-axis direction with and from changes.

Therefore, in the present embodiment, the measurement unit 15 is driven in the Z-axis direction or X by driving the Z-axis motor 34 or the X-axis motor 44 described above based on the change in the pressure in the Z-axis direction or the change in the pressure in the X-axis direction. Move (coarse) in the axial direction. At this time, since the Z-axis motor 34 or the X-axis motor 44 is driven at a higher speed than during the tilting operation described above, the measuring unit 15 moves in the Z-axis direction or the X-axis direction at a higher speed than during the tilting operation, that is, Coarse.

The push-pull operation that causes such changes in pressure in the Z-axis direction and the X-axis direction is not limited to the push-pull operation in the Z-axis direction and the X-axis direction with respect to the operating lever 17.

FIG. 4 is an explanatory diagram for explaining a type of push-pull operation in the Z-axis direction. Further, FIG. 5 is an explanatory diagram for explaining a type of push-pull operation in the X-axis direction. In FIGS. 4 and 5, the Z-axis drive unit 22 and the X-axis drive unit 24 are simplified in order to prevent the drawings from becoming complicated.

As shown in FIG. 4, the push-pull operation in the Z-axis direction includes the push-pull operation in the Z-axis direction with respect to the operation lever 17 described above (see arrow PZ1), as well as the measurement unit 15 (including the monitor 16). Push-pull operation in the Z-axis direction (see arrow PZ2), push-pull operation in the Z-axis direction with respect to at least one of the Z-axis base 21 and the X-axis base 23 (see arrow PZ3), and Z-axis direction with respect to the Y-axis drive unit 25. Push-pull operation (see arrow PZ4) and the like are included. Further, a plurality of these push-pull operations may be combined. By such a push-pull operation in the Z-axis direction with respect to at least one of the electric drive unit 14, the measurement unit 15, and the operating lever 17, the pressure change in the Z-axis direction described above occurs.

As shown in FIG. 5, as the push-pull operation in the X-axis direction, in addition to the push-pull operation in the X-axis direction with respect to the operation lever 17 described above (see arrow PX1), the push-pull operation in the X-axis direction with respect to the measuring unit 15 and the like is performed. Includes a pull operation (see arrow PX2), an X-axis direction push-pull operation on the X-axis base 23 (see arrow PX3), an X-axis direction push-pull operation on the Y-axis drive unit 25 (see arrow PX4), and the like. Further, a plurality of these push-pull operations may be combined. By such a push-pull operation in the X-axis direction with respect to at least one of the electric drive unit 14, the measurement unit 15, and the operating lever 17, the pressure change in the X-axis direction described above occurs.

FIG. 6 is a side view of the Z-axis pressure sensor 60 that detects a change in pressure in the Z-axis direction due to a push-pull operation in the Z-axis direction. As shown in FIG. 6, a Z-axis pressure sensor 60 corresponding to an operation detection unit of the present invention is provided between the facing surfaces 28a and 32a of both the housing 28 and the nut 32 that face each other in the Z-axis direction. It is provided.

The Z-axis pressure sensor 60 is connected to each of the facing surfaces 28a and 32a, respectively. Therefore, when the push-pull operation in the Z-axis direction is performed, the Z-axis pressure sensor 60 detects the pressure (change in pressure) in the Z-axis direction accompanying the push-pull operation.

FIG. 7 is an explanatory diagram for explaining the detection of the pressure in the Z-axis direction by the Z-axis pressure sensor 60 when the push-pull operation in the Z-axis direction is performed. As shown in the upper part of FIG. 7, when the push-pull operation (see arrows PZ1 to PZ4) is performed toward the front side in the Z-axis direction indicated by Z (+), the Z-axis is shown as shown by arrows A1 and H1. Pressure is applied to the base 21 and the housing 28 toward the front side in the Z-axis direction. At this time, since the movement of the nut 32 in the Z-axis direction is restricted by the feed screw 33, the facing surface 28a of the housing 28 makes the Z-axis pressure sensor 60 on the facing surface 32a of the nut 32 as shown by the arrow F1. Press toward. As a result, the Z-axis pressure sensor 60 is compressed between the facing surfaces 28a and 32a of both the housing 28 and the nut 32, and the Z-axis pressure sensor 60 detects a positive (+) pressure.

As shown in the lower part of FIG. 7, when the push-pull operation (see arrows PZ1 to PZ4) is performed toward the rear side in the Z-axis direction indicated by Z (-), the Z-axis is shown by arrows A2 and H2. Pressure is applied to the base 21 and the housing 28 toward the rear side in the Z-axis direction. Even in this case, the movement of the nut 32 in the Z-axis direction is restricted by the feed screw 33. Therefore, as shown by the arrow F2, the facing surface 28a of the housing 28 makes the Z-axis pressure sensor 60 the facing surface 32a of the nut 32. Pull in the direction away from. As a result, the Z-axis pressure sensor 60 is extended between the facing surfaces 28a and 32a of both the housing 28 and the nut 32, and the Z-axis pressure sensor 60 detects a negative (−) pressure. Therefore, the Z-axis pressure sensor 60 can detect the operation direction of the push-pull operation in the Z-axis direction (front side or rear side in the Z-axis direction) and the magnitude of the pressure of the push-pull operation.

Specifically, the operation direction of the push-pull operation in the Z-axis direction can be detected according to the positive / negative of the pressure detected by the Z-axis pressure sensor 60, and based on the absolute value of the pressure detected by the Z-axis pressure sensor 60. The magnitude of the pressure of the push-pull operation in the Z-axis direction can be detected.

Therefore, when a positive pressure is detected by the Z-axis pressure sensor 60, the measurement unit 15 is driven by rotating the feed screw 33 in one direction by the Z-axis motor 34 as shown by the arrow R1 in the figure. It is moved (coarse) at a speed corresponding to the absolute value of this positive pressure toward the front side in the Z-axis direction. When a negative pressure is detected by the Z-axis pressure sensor 60, the feed screw 33 is rotationally driven by the Z-axis motor 34 in the other direction as shown by the arrow R2 in the drawing, whereby the measuring unit 15 is driven. It is moved toward the rear side in the Z-axis direction at a speed corresponding to the absolute value of this negative pressure.

Further, although not shown, X corresponding to the operation detection unit of the present invention is also between the facing surfaces (not shown) of the housing 38 and the nut 42 shown in FIG. 1 facing each other in the X-axis direction. A shaft pressure sensor 61 (see FIG. 8) is provided. Thereby, the operation direction (left side or right side in the X-axis direction) of the push-pull operation in the X-axis direction can be detected according to the positive / negative of the pressure detected by the X-axis pressure sensor 61. Further, the magnitude of the pressure of the push-pull operation in the X-axis direction can be detected based on the absolute value of the pressure detected by the X-axis pressure sensor 61.

Therefore, when a positive pressure is detected by the X-axis pressure sensor 61 (see FIG. 8), the feed screw 43 is rotationally driven in one direction by the X-axis motor 44 to rotate the measurement unit 15 in the X-axis direction (see FIG. 8). Move (coarse) toward one side (left and right) at a speed corresponding to the absolute value of this positive pressure. When a negative pressure is detected by the X-axis pressure sensor 61, the feed screw 43 is rotationally driven in the other direction by the X-axis motor 44, so that the measuring unit 15 is directed to the other side in the X-axis direction. , Move at a speed according to the absolute value of this negative pressure.

In addition, in FIGS. 6 and 7 described above, the Z-axis pressure sensor is formed in the gap formed by the facing surfaces 28a and 32a on the rear side in the Z-axis direction in the gap formed between the housing 28 and the nut 32. Although 60 is provided, the Z-axis pressure sensor 60 may be provided in the gap on the front side in the Z-axis direction or on both the front side and the rear side in the Z-axis direction. That is, the position of the Z-axis pressure sensor 60 is not particularly limited as long as it is a position where a push-pull operation in the Z-axis direction can be detected (a position compressed or expanded by the push-pull operation). Similarly, the position of the X-axis pressure sensor 61 (see FIG. 8) is not particularly limited as long as it can detect the push-pull operation in the X-axis direction.

In the ophthalmic apparatus 10, based on the positive and negative pressure detected by the Z-axis pressure sensor 60, a push-pull operation from the rear side in the Z-axis direction to the front side in the Z-axis direction and a rearward operation in the Z-axis direction from the front side in the Z-axis direction It can be detected separately from the push-pull operation toward the side. Further, in the ophthalmic apparatus 10, based on the positive and negative pressure detected by the X-axis pressure sensor 61, a push-pull operation from the left side in the X-axis direction to the right side in the X-axis direction and a left-hand side in the X-axis direction from the right side in the X-axis direction It can be detected separately from the push-pull operation toward the side. Therefore, in the ophthalmic apparatus 10, the pressure sensors 60 and 61 can distinguish and detect the push-pull operation in the plurality of directions.

Therefore, in the present embodiment, in the auto-alignment mode in which the manual alignment of the measurement unit 15 is not executed, a push-pull operation is performed as a start operation for starting a predetermined operation control on the device main body 10a of the ophthalmic device 10.

The measurement operation of the eye characteristics of the eye E to be inspected (corresponding to the acquisition operation of the present invention) performed by the device main body 10a of the ophthalmic apparatus 10 in the auto-alignment mode includes, for example, before the start of measurement of the eye characteristics of the eye E to be inspected (standby). It includes multiple motion stages, such as during autoalignment and after the measurement of eye characteristics of eye E to be inspected is complete. Therefore, in each operation stage, a predetermined operation control of the device main body 10a is started by a push-pull operation. Therefore, the push-pull operation corresponds to the "start operation common to a plurality of operation stages" of the present invention. The "common start operation in a plurality of operation stages" here includes the same (same type) start operation in a plurality of operation stages. That is, the push-pull operation and the operation control are not in a one-to-one relationship, and the type of operation control started by the push-pull operation changes for each operation stage.

Here, the predetermined operation control of the device main body 10a is, for example, switching between the left and right eyes of the eye to be inspected E for measuring the eye characteristics, starting the auto alignment, urgently stopping the auto alignment, and controlling the eye characteristics of the eye to be inspected E. It is a control that automatically executes operations such as output of measurement results. Therefore, the manually performed control such as the coarse movement of the measuring unit 15 by the push-pull operation described above is not included in the operation control referred to here.

When a push-pull operation is performed as a start operation of operation control of the device main body 10a for each operation stage, the type of operation can be changed by changing the operation direction of the push-pull operation. Therefore, in the present embodiment, the direction of the push-pull operation detected by the pressure sensors 60 and 61 (type of start operation) and the operation stage when the push-pull operation is performed (current operation stage) are determined. , The type of operation control of the apparatus main body 10a to be executed is determined, and the determined operation control is executed.

FIG. 8 is a block diagram showing an electrical configuration of the control unit 65 provided in the ophthalmic apparatus 10. As shown in FIG. 8, 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 characteristic of the eye E to be inspected in response to the touch operation of the monitor 16 or the operation of the operation lever 17. To the measurement unit 15.

Further, the control unit 65 executes a control program (not shown) read from the storage unit 66 to execute an arithmetic processing unit 67, a movement control unit 68, an output control unit 77, a correspondence acquisition unit 78, and a determination unit 82. Functions as.

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 axis 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, the storage unit 66, and the output control unit 77. 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. Further, the measurement result of the eye characteristics of the eye E to be inspected is output from the output control unit 77, which will be described later, to the output unit 18.

The movement control unit 68 controls the drive of the Z-axis motor 34, the X-axis motor 44, and the Y-axis motor 54 to move or stop the measurement unit 15 in each axial direction of the XYZ axes. As a result, the movement control unit 68 executes various movements of the measurement unit 15 including alignment (auto alignment or manual alignment) of the measurement unit 15 with respect to the eye E to be inspected, stopping of the auto alignment, and left / right switching movement of the eye E to be inspected. To do. In addition to the above-mentioned motors 34, 44, 54, potentiometers 56X, 56Y, 56Z, and pressure sensors 60, 61, the movement control unit 68 detects the position of the measurement unit 15 in the X-axis direction. The X-axis position detection sensor 73, 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. Switching between the auto alignment mode and the manual alignment mode is performed, for example, by a touch operation on the operation screen displayed on the monitor 16. The manual alignment mode is a mode in which auto-alignment cannot be performed, for example, the cornea or iris of the eye E to be inspected has an abnormality or nystagmus is large.

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.

On the other hand, when the manual alignment mode is selected and the operation lever 17 is tilted or rotated, the movement control unit 68 is based on a signal input from any of the potentiometers 56X, 56Y, and 56Z. , Performs fine movement control to control the drive of any of the motors 34, 44, 54. As a result, the measuring unit 15 makes fine movements (moves at a low speed) according to the direction and speed corresponding to the tilting operation or the rotating operation.

Further, when the manual alignment mode is selected, the movement control unit 68 presses and pulls each pressure in the Z-axis direction or the X-axis direction as shown in FIGS. 4 and 5 described above. Roughness control for controlling the drive of each of the motors 34 and 44 is started based on the positive / negative and absolute values of the pressure detected by the sensors 60 and 61.

FIG. 9 is an explanatory diagram for explaining coarse movement control in the Z-axis direction and the X-axis direction of the measurement unit 15 by the movement control unit 68. Further, FIG. 10 is a graph showing an example of a pressure change showing the relationship between the pressure and time detected by the Z-axis pressure sensor 60 and the X-axis pressure sensor 61 during coarse motion control, respectively. As shown in FIGS. 9 and 10, in the movement control unit 68, the magnitude of the absolute value of the pressure detected by each of the pressure sensors 60 and 61 in the manual alignment mode is an absolute threshold ± VL determined in advance. If it is less than the value (corresponding to less than the threshold value of the present invention), the driving of the motors 34 and 44 is stopped. That is, in the pressure range in which the magnitude of the absolute value of each pressure sensor 60, 61 is less than the absolute value of the threshold value ± VL, the measurement unit 15 does not coarsely move in the Z-axis direction and the X-axis direction in the manual alignment mode. It becomes a dead zone.

On the other hand, in the movement control unit 68, the magnitude of the absolute value of the pressure detected by any of the pressure sensors 60 and 61 in the manual alignment mode is equal to or greater than the absolute value of the threshold ± VL (greater than or equal to the threshold of the present invention). In this case, the operation direction of the push-pull operation in the Z-axis direction or the X-axis direction is determined according to the positive or negative of this pressure. Further, the movement control unit 68 determines the magnitude of the moving speed of the measuring unit 15 (hereinafter, simply referred to as the moving speed) according to the magnitude of the absolute value of the detected pressure. At this time, when the magnitude of the absolute value of the pressure becomes larger than the absolute value of the predetermined threshold value ± VU, the movement control unit 68 sets the movement speed to a constant speed without further increasing the movement speed. Then, the movement control unit 68 drives any of the motors 34 and 44 according to the determined operation direction and movement speed. As a result, in the manual alignment mode, the measuring unit 15 roughly moves according to the direction and speed corresponding to the push-pull operation.

Returning to FIG. 8, the movement control unit 68 is in each case where the auto-alignment mode described above is set and the determination result of the operation control of the apparatus main body 10a is input from the determination unit 82 described later. The drive of the motors 34, 44, 54 is controlled, and the electric drive unit 14 is operated according to the determination result from the determination unit 82.

The output control unit 77 controls the operation of the output unit 18 to output the measurement result of the eye characteristics of the eye to be inspected E analyzed by the analysis unit 71 from the output unit 18. As the output unit 18, a printer that prints the measurement result of the eye characteristic of the eye E to be inspected, a communication interface that transmits the measurement result of the eye characteristic of the eye E to be inspected to another device by wire or wirelessly, and the like are used.

Further, the output control unit 77 is the output unit 18 when the above-described auto-alignment mode is set and the determination result of the operation control of the device main body 10a is input from the determination unit 82 described later. To operate.

The correspondence acquisition unit 78 acquires the correspondence information 79 stored in advance outside the storage unit 66 or the ophthalmology device 10 (for example, a server on the Internet and another ophthalmology device 10), and obtains the correspondence information 79. It is output to the determination unit 82 described later.

FIG. 11 is an explanatory diagram showing an example of correspondence information 79 corresponding to the correspondence of the present invention. As shown in FIG. 11, the correspondence information 79 is a push-pull operation, which is a start operation described above, for each of a plurality of operation stages included in the measurement operation of the eye characteristics of the eye to be inspected E performed by the apparatus main body 10a in the auto-alignment mode. The correspondence between the type of operation (operation direction) and the type of operation control performed by the apparatus main body 10a is stored in advance.

In the correspondence information 79, "before measurement start", "first alignment execution", "second alignment execution", "right eye measurement completed", and "left eye measurement completed" are set as operation stages. ing.

The operation stage "before the start of measurement" is an operation stage before the start of measurement of the eye characteristics of the eye E to be inspected, and corresponds to the first operation stage of the present invention. In this operation stage "before the start of measurement", the measurement unit 15 is "before the start of right eye measurement" at the right eye measurement position for measuring the eye characteristics of the right eye of the eye E to be examined, and the measurement unit 15 is the eye characteristics of the left eye. It is divided into two operation stages, "before the start of left eye measurement" at the left eye measurement position to measure.

The right eye measurement position and the left eye measurement position are X-axis directions in which the measurement unit 15 can acquire the observation image of the anterior eye portion of the corresponding eye E (right eye or left eye), that is, alignment detection is possible. The position. Further, in the present embodiment, the right eye measurement position and the left eye measurement position will be described as fixed positions.

In the operation stage prior to the operation stage "before the start of measurement", the measurement unit 15 has acquired an observation image of the anterior segment of the right eye or the left eye of the eye E to be inspected (the observation image is displayed on the monitor 16). The position of the jaw support of the face support portion 13 and the height position of the forehead pad in the Y-axis direction is adjusted, and the position of the measurement unit 15 is manually adjusted so as to be in the displayed state). Therefore, when the push-pull operation is performed in the operation stage prior to the operation stage "before the start of measurement", the measurement unit 15 follows the direction and speed corresponding to the push-pull operation as in the above-described manual alignment mode. It is coarsely moved.

The operation stage "first alignment is being executed" is an operation stage in which the auto-alignment mode is being executed and the measurement unit 15 is moving in the direction approaching the eye E to be inspected, that is, moving forward in the Z-axis direction. It corresponds to the second operation stage of the invention. Further, the operation stage "second alignment is being executed" is an operation stage during which the auto-alignment mode is being executed and the measurement unit 15 is moving in a direction different from the front side in the Z-axis direction. It corresponds to the third operation stage.

The operation stage "Right eye measurement completed" is an operation stage in which the measurement of the eye characteristics of the right eye of the eye E to be examined is completed, and corresponds to the fourth operation stage of the present invention. In this operation stage "right eye measurement completed", "left eye unmeasured" in which the eye characteristics of the left eye of the subject E have not been measured, and "measurement of the eye characteristics of the left eye of the subject E" has been completed. It is divided into two operation stages: "Left eye measurement completed".

The operation stage "left eye measurement completed" is an operation stage in which the measurement of the eye characteristics of the left eye of the eye E to be examined is completed, and corresponds to the fourth operation stage of the present invention. In this operation stage "left eye measurement completed", "right eye unmeasured" in which the eye characteristics of the right eye of the subject E have not been measured, and "measurement of the eye characteristics of the right eye of the subject E" has been completed. It is divided into two operation stages: "Right eye measurement completed".

In each of these operation stages, three types of push-pull operations (other than the three types are possible) that are common to each other in each operation stage are defined. Specifically, three types of push-pull operations with different operation directions of "right-direction push-pull operation", "left-direction push-pull operation", and "forward-direction push-pull operation" are defined for each operation stage. ..

In the "leftward push-pull operation", at least one of the electric drive unit 14, the measurement unit 15 (including the monitor 16), and the operation lever 17 when viewed from the subject (eye E to be inspected) is on the right side in the X-axis direction. It is an operation of pushing and pulling from to the left side in the X-axis direction. On the contrary, in the "rightward push-pull operation", at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17 is directed from the left side in the X-axis direction to the right side in the X-axis direction when viewed from the subject side. It is a push-pull operation. The "forward push-pull operation" is an operation of pushing and pulling at least one of the electric drive unit 14, the measuring unit 15, and the operating lever 17 toward the subject side (front side in the Z-axis direction).

In the operation stage "before the start of right eye measurement", "left / right switching movement control to the left eye measurement position" is set as the operation control of the device main body 10a corresponding to the "left direction push / pull operation", and "right direction push / pull operation" is set. "Standby" is set as the operation control corresponding to "operation", and "alignment start control for the right eye" is set as the operation control corresponding to "forward push-pull operation".

In the operation stage "before the start of left eye measurement", "standby" is set as the operation control of the device main body 10a corresponding to the "left direction push / pull operation", and "standby" is set as the operation control corresponding to the "right direction push / pull operation". "Left / right switching movement control to the right eye measurement position" is set, and "alignment start control for the left eye" is set as an operation control corresponding to the "forward push / pull operation".

In the operation stage "first alignment is being executed", "first alignment stop control" is set as the operation control of the apparatus main body 10a corresponding to all push-pull operations. Further, in the operation stage "second alignment is being executed", "second alignment stop control" is set as an operation control corresponding to all push-pull operations.

In the operation stage "left eye unmeasured", "left / right switching movement control to the left eye measurement position and alignment start control" are set as operation control of the device main body 10a corresponding to the "left direction push / pull operation", and "right". "Standby" is set as an operation control corresponding to both "direction push-pull operation" and "forward push-pull operation". In addition, in the operation stage "left eye measurement completed", "standby" is set as an operation control corresponding to both "left direction push-pull operation" and "right direction push-pull operation", and "forward push-pull operation". "Output execution control" and "reset" are set as the operation control corresponding to.

In the operation stage "right eye not measured", "left / right switching movement control to the right eye measurement position and alignment start control" are set as operation control of the device main body 10a corresponding to the "right direction push / pull operation", and "left". "Standby" is set as an operation control corresponding to both "direction push-pull operation" and "forward push-pull operation". In addition, in the operation stage "right eye measurement completed", "standby" is set as an operation control corresponding to both "left direction push-pull operation" and "right direction push-pull operation", and "forward push-pull operation". "Output execution control" and "reset" are set as the operation control corresponding to.

Next, each operation control will be specifically described. The operation control "standby" is a control that puts the device main body 10a into a standby state. Further, the motion control "alignment start control for the right eye (left eye)" corresponds to the alignment start control of the present invention, and controls the driving of the motors 34, 44, 54 to be inspected eye E (left eye, right eye). It is a control to execute the auto alignment of the measurement unit 15 with respect to the eye). The same applies to the latter of the operation control "left / right switching movement control to the left eye (right eye) measurement position and alignment start control".

FIG. 12 is an explanatory diagram for explaining the operation control “left / right switching movement control to the left eye (right eye) measurement position”. As shown in FIG. 12, the operation control "left / right switching movement control to the left eye (right eye) measurement position" corresponds to the left / right switching movement control of the present invention, and controls the drive of the X-axis motor 44. The control is to move the measurement unit 15 from one of the right eye measurement position and the left eye measurement position toward the other. The same applies to the former of the motion control "left / right switching movement control to the left eye (right eye) measurement position and alignment start control".

FIG. 13 is an explanatory diagram for explaining the operation control “first alignment stop control”. As shown in FIG. 13, the "first alignment stop control" corresponds to the first stop control of the present invention.

As shown by reference numeral C1, the "first alignment stop control" is a control that controls the drive of the Z-axis motor 34 in the above-described operation stage "first alignment execution" to urgently stop the auto alignment. In this "first alignment stop control", the measurement unit 15 is stopped moving forward in the Z-axis direction as shown by reference numeral C2, and the measurement unit 15 is moved backward in the Z-axis direction as shown by reference numeral C3. After the retreat) is performed, the movement of the measurement unit 15 is stopped. As a result, the safety of the subject (eye to be inspected E) can be further enhanced.

On the other hand, the operation control "second alignment stop control" corresponds to the second stop control of the present invention, and drives the motors 34, 44, 54 in the above-mentioned operation stage "second alignment execution". Is a control to stop the auto alignment in an emergency. In the operation stage "second alignment is being executed" in which the measurement unit 15 is moving in a direction different from the front side in the Z-axis direction approaching the eye E to be inspected, the measurement unit 15 is moved to the Z-axis when the auto-alignment mode is urgently stopped. There is little need to move (backward) backward in the direction. Therefore, in the "second alignment stop control", the measurement unit 15 is urgently stopped at the current position.

Returning to FIG. 11, the motion control “output execution control” controls the motion of the output unit 18 by the output control unit 77 described above, and measures the eye characteristics of the eye E to be inspected analyzed by the analysis unit 71. This is a control for outputting from the output unit 18. Further, the operation control "reset" is an operation control for moving the measurement unit 15 to a predetermined initial position by controlling the driving of the motors 34, 44, 54, for example.

As described above, in the correspondence information 79, the type of operation control of the device main body 10a associated with each of the three types of push-pull operations is different in each operation stage. Therefore, even if the types of push-pull operations are limited (up to four types in this embodiment), it is possible to set more operation controls of the device main body 10a than the types of push-pull operations in the correspondence information 79.

Returning to FIG. 8, the determination unit 82 has already described when a push-pull operation is detected by any of the pressure sensors 60 and 61 in each operation stage (see FIG. 11) in the auto-alignment mode described above. The type of operation control to be executed by the device main body 10a is determined based on the correspondence information 79 of the above.

FIG. 14 is a flowchart for explaining the flow of the determination of the motion control by the determination unit 82 and the execution of the motion control determined by the determination unit 82 (corresponding to the operation method of the ophthalmic apparatus of the present invention).

As shown in FIG. 14, the correspondence relationship acquisition unit 78 acquires the correspondence relationship information 79 from the storage unit 66 or the outside in advance, and the correspondence relationship information 79 is input from the correspondence relationship acquisition unit 78 to the determination unit 82. (Step S1, corresponding to the acquisition step of the present invention).

The operator performs a push-pull operation corresponding to the type of operation control to be executed in each operation stage after the operation stage "before the start of measurement" in the auto-alignment mode, with the electric drive unit 14, the measurement unit 15, and the operation lever 17. (YES in step S2).

At this time, the pressure sensors 60 and 61 constantly detect the pressure and output the pressure detection result to the determination unit 82. Then, when the push-pull operation by the operator is executed, the pressure detected by any of the pressure sensors 60 and 61 changes, and the detection result of this pressure (pressure change) is output to the determination unit 82 ( Step S3, corresponding to the detection step of the present invention).

When the pressure detection result is input from any of the pressure sensors 60 and 61, the determination unit 82 determines the current operation stage of the ophthalmic apparatus 10 and types of push-pull operation (operation) based on the pressure detection result. The direction) is determined (step S4).

Next, the determination unit 82 refers to the correspondence relationship information 79 previously input from the correspondence acquisition unit 78 based on the determined current operation stage and the type of push / pull operation, and refers to the current operation stage and push / pull operation. The operation control of the apparatus main body 10a corresponding to both of the above types is determined (steps S5 and S6, corresponding to the determination step of the present invention).

Then, the determination unit 82 controls the operation of the device main body 10a by "alignment start control for the right eye (left eye)", "left / right switching movement control to the left eye (right eye) measurement position", and "first (first). When the operation control related to the movement and movement stop of the measurement unit 15 such as "alignment stop control" is determined, the determination result of this operation control is output to the movement control unit 68. Further, when the determination unit 82 determines the operation control related to the output of the measurement result of the eye characteristic of the eye to be inspected E such as "output execution control" as the operation control of the device main body 10a, the determination unit 82 determines the determination result of this operation control. Output to the output control unit 77.

Upon receiving the input of the operation control determination result from the determination unit 82, the movement control unit 68 controls the drive of each of the motors 34, 44, 54 based on the determination result, and operates related to the movement and movement stop of the measurement unit 15. Control is executed (step S7, corresponding to the control step of the present invention). Further, the output control unit 77, which receives the input of the determination result of the operation control from the determination unit 82, controls the drive of the output unit 18 to execute the operation control related to the output of the measurement result of the eye characteristics of the eye E to be inspected. (Step S7, corresponding to the control step of the present invention).

[Action of ophthalmic device]
FIG. 15 is a flowchart showing a flow of measurement of eye characteristics by the ophthalmic apparatus 10 having the above configuration. Here, the case where the auto alignment mode is set will be described.

As shown in FIG. 15, when the auto-alignment mode is set (step S11), the operator adjusts the height position of the chin rest and forehead rest of the face support portion 13 in the Y-axis direction, and adjusts the height position of the measurement unit 15. The height position of the measurement unit 15 and the subject's face in the Y-axis direction is adjusted by performing a movement operation in the Y-axis direction.

Further, the operator performs a push-pull operation in the Z-axis direction and the X-axis direction with respect to at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17. By this operation, the movement control unit 68 executes the coarse movement control of the measurement unit 15, and the measurement unit 15 moves in the Z-axis direction and the X-axis direction to the position where the anterior segment image of the eye to be inspected E can be acquired (coarse movement). Will be done. As a result, the position adjustment of the measurement unit 15 before the alignment detection is completed. As a result, the operation stage of the measurement operation of the ophthalmic apparatus 10 shifts to the operation stage "before the start of measurement" shown in FIG. 11 described above.

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 (step S12). ..

Then, when the operator performs a push-pull operation of pushing and pulling the electric drive unit 14, the measurement unit 15, and the operation lever 17 forward in the Z-axis direction (step S13), the determination unit 82 moves. , The execution of the motion control "alignment start control for the right eye (left eye)" is determined according to the flow shown in FIG. 14 described above.

Next, the determination unit 82 outputs the determination result of the motion control “alignment start control for the right eye (left eye)” to the movement control unit 68. As a result, 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 S14). As a result, the operation stage of the measurement operation of the ophthalmic apparatus 10 shifts to the operation stage "first alignment being executed" or "second alignment being executed" shown in FIG. 11 described above according to the moving direction of the measurement unit 15. To do.

After the start of auto-alignment, if the operator needs to stop auto-alignment in an emergency, the operator may move in the Z-axis direction or the X-axis direction with respect to at least one of the electric drive unit 14, the measuring unit 15, and the operating lever 17. A push-pull operation is performed (YES in step S15, step S16). In response to this push-pull operation, the determination unit 82 determines the execution of the operation control "first alignment stop control" or "second alignment stop control" according to the flow shown in FIG. 14 described above. As a result, the movement control unit 68 controls the drive of each of the motors 34, 44, 54 to make an emergency stop of the auto alignment (step S17).

Next, the movement control unit 68 switches to the manual alignment mode (step S18). In this case, the operator performs a manual movement operation, that is, a push-pull operation on at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17, and a tilt operation on the operation lever 17. As a result, the coarse movement of the measurement unit 15 in response to the push-pull operation and the fine movement of the measurement unit 15 in response to the tilting operation are executed, and the measurement unit 15 is manually aligned with the eye E to be inspected.

On the other hand, if the push-pull operation for urgently stopping the auto-alignment is not performed after the start of the auto-alignment, the auto-alignment of the measurement unit 15 with respect to the eye E to be inspected is completed (NO in step S15, YES in step S19).

When the auto alignment or the manual alignment is completed, the measurement unit 15 measures the eye characteristics of the eye E to be inspected and the analysis unit 71 executes the analysis, and the measurement result of the eye characteristics of the eye E to be inspected is obtained (step S20). The measurement result of the eye characteristics of the eye E to be inspected is displayed on the monitor 16, stored in the storage unit 66, and further output to the output control unit 77. As a result, the operation stage of the measurement operation of the eye characteristics of the eye to be inspected E by the ophthalmic apparatus 10 is the operation stage "right eye measurement completed" or "left eye" shown in FIG. 11 described above according to the moving direction of the measurement unit 15. Move to "Measurement completed".

When switching left and right of the eye to be inspected E for measuring eye characteristics, the operator has the right side in the X-axis direction or the left-right side in the X-axis direction with respect to at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17. A push-pull operation of pushing and pulling in the corresponding direction is performed (YES in step S21, step S22). In response to this push-pull operation, the determination unit 82 determines the execution of the operation control "left / right switching movement control to the left eye (right eye) measurement position and alignment start control" according to the flow shown in FIG. 14 described above. To do. Then, the movement control unit 68 drives the X-axis motor 44 to move the measurement unit 15 from one of the right eye measurement position and the left eye measurement position toward the other (step S23).

Hereinafter, after the same alignment detection as in step S12 described above is executed (step S24), the processes from step S14 to step S20 described above are repeatedly executed.

When the operator outputs the measurement result after the measurement of the eye characteristics of both eyes of the eye to be inspected E is completed (NO in step S21), the operator sets the electric drive unit 14, the measurement unit 15, and the operation lever 17. A push-pull operation of pushing and pulling forward in the Z-axis direction is performed for at least one of the above (YES in step S25, step S26).

In response to this push-pull operation, the determination unit 82 determines the execution of the operation control "output execution control" and "reset" according to the flow shown in FIG. 14 described above. As a result, the output control unit 77 controls the drive of the output unit 18 to cause the output unit 18 to output the measurement result of the eye characteristic of the eye to be inspected E (step S27). Further, the movement control unit 68 controls the drive of each of the motors 34, 44, 54 based on the determination result to move the measurement unit 15 to a predetermined initial position.

[Effect of this embodiment]
As described above, in the ophthalmic apparatus 10 of the present embodiment, predetermined motion control is performed in each motion stage of the measurement motion of the eye characteristics of the eye E to be inspected by a push-pull operation which is a common start operation in each motion stage. You can start. As a result, the operator can start the above-mentioned operation control only by performing the push-pull operation, so that the operability of the operator can be improved. In addition, the operator can perform an intuitive operation by performing the push-pull operation, unlike the case where the operation screen of the monitor 16 is touch-operated. Further, it is not necessary to display a large number of icons for starting a large number of operation controls on the operation screen of the monitor 16 or to memorize a large number of operation patterns by the operator. As a result, the operator can intuitively perform the operation of executing the operation control of the device main body 10a corresponding to the current operation stage without deteriorating the operability.

Further, in the present embodiment, the type of operation control of the apparatus main body 10a associated with the plurality of types of push-pull operations having different operation directions is different for each operation stage. As a result, it is possible to start more operation controls than the types of push-pull operations by performing push-pull operations for each operation stage. As a result, the operability of the operator can be further improved.

[Modification example of push-pull operation type determination method]
FIG. 16 is an explanatory diagram for explaining the correspondence information 79A of the other embodiment. Although the determination unit 82 of the above embodiment determines the type of the push-pull operation based on the operation direction of the push-pull operation, the type of the push-pull operation may be determined based on the operation pattern of the push-pull operation. For example, by using a highly sensitive and highly accurate sensor as each of the pressure sensors 60 and 61 described above, when a touch operation or the like (including a tap operation and a contact operation) is performed as a push-pull operation, this touch is performed. The pressure sensors 60 and 61 can detect a slight change in pressure due to an operation or the like.

Therefore, for at least one of the electric drive unit 14, the measuring unit 15, and the operating lever 17, the push-pull operation is, for example, one or a plurality of touch operations, or a long-press operation (a continuous touch operation for a certain period of time). When the operation patterns are different from each other, the determination unit 82 can distinguish each operation pattern based on the pressure detection results of the pressure sensors 60 and 61.

Therefore, as shown in FIG. 16, for each operation stage of the correspondence information 79A, three types (other than three types) of push-pull operation operation patterns common to each other in each operation stage (“operation pattern 1”). , "Operation pattern 2", "Operation pattern 3"). For example, "operation pattern 1" is a single touch operation, "operation pattern 2" is a multiple touch operation, and "operation pattern 3" is a long press operation. As a result, the determination unit 82 determines the operation pattern (type of push / pull operation) of the push / pull operation performed by the operator at each operation stage based on the pressure detection results of the pressure sensors 60 and 61, and this determination is made. Based on the result and the current operation stage, the operation control of the apparatus main body 10a can be determined as in the above embodiment.

[Execution of operation control in manual alignment mode]
In the above embodiment, the determination and execution of the operation control of the apparatus main body 10a when the push-pull operation is performed at each of the above-described operation stages in the auto alignment mode has been described, but the same operation is also performed in the manual alignment mode. Control (for example, output of the measurement result of the eye characteristic of the eye to be inspected E) may be determined and executed.

In this case, in the determination unit 82, the absolute value of the pressure detected by the pressure sensors 60 and 61 is less than the absolute value of the threshold value ± VL described above in which the coarse movement control of the measurement unit 15 by the movement control unit 68 is not executed. In this case, the operation control of the device main body 10a is determined. On the other hand, when the absolute value of the pressure detected by the pressure sensors 60 and 61 is equal to or greater than the absolute value of the threshold value ± VL, the movement control unit 68 executes the coarse movement control of the measurement unit 15.

FIG. 17 is a flowchart showing a flow of determining and executing the operation control of the apparatus main body 10a in the manual alignment mode and executing the coarse movement control of the measuring unit 15. As in the case of the auto-alignment mode shown in FIG. 14, the correspondence relationship information 79 is acquired by the correspondence acquisition unit 78 and the correspondence information 79 is output to the determination unit 82 in advance. (Step S31).

As shown in FIG. 17, when the manual alignment mode is set (step S32), the operator performs a push-pull operation on at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17. (YES in step S33). As a result, the pressure detected by any of the pressure sensors 60 and 61 changes, and the detection result of this pressure (pressure change) is output from the pressure sensors 60 and 61 to both the movement control unit 68 and the determination unit 82. (Step S34).

When the magnitude of the absolute value of the pressure detected by any of the pressure sensors 60 and 61 is equal to or greater than the absolute value of the threshold ± VL shown in FIGS. 9 and 10 described above, the movement control unit 68 (step). NO in S35), coarse movement control of the measuring unit 15 is started (step S36).

First, 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 either the pressure sensor 60 or 61, and the absolute pressure is absolute. The moving speed of the measuring unit 15 is determined according to the magnitude of the value (step S37). Next, 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 coarsely move according to the direction and speed corresponding to the push-pull operation (step). S38).

On the other hand, when the magnitude of the absolute value of the pressure detected by any of the pressure sensors 60 and 61 is less than the absolute value of the threshold value ± VL (YES in step S35), the movement control unit 68 of the measurement unit 15 The coarse motion control is stopped (step S39). Then, the processes from step S4 to step S7 described in FIG. 14 described above, that is, the determination of the operation control by the determination unit 82 and the execution of the operation control by the movement control unit 68 or the output control unit 77 are performed.

In this way, the magnitude of the pressure of the push-pull operation when performing coarse movement control of the measuring unit 15 and the magnitude of the pressure of the push-pull operation when determining and executing the operation control of the apparatus main body 10a are different from each other. Therefore, when the operator performs a push-pull operation on at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17, the coarse movement control of the measurement unit 15 and the operation control of the device main body 10a are performed. It is prevented from being done at the same time. Therefore, the operator performs a push-pull operation with a strong force when performing coarse movement control of the measuring unit 15, and a push-pull operation with a weak force such as a touch operation when controlling the operation of the apparatus main body 10a. Do. As a result, the operator can intuitively select between the coarse movement control of the measuring unit 15 and the operation control of the apparatus main body 10a by increasing or decreasing the force of the push-pull operation. In addition, execution of control unintended by the operator is prevented.

[Other detection methods for push-pull operation]
In the above embodiment, the Z-axis pressure sensor 60 and the X-axis pressure sensor 61 are used to detect the push-pull operation in the Z-axis direction and the X-axis direction with respect to the measurement unit 15, but this push-pull operation can be performed by another method. May be detected using.

FIG. 18 is an explanatory diagram for explaining the detection of the push-pull operation in the Z-axis direction and the X-axis direction by another configuration. As shown in FIG. 18, instead of providing the Z-axis pressure sensor 60, the distance D between the facing surfaces 28a and 32a is measured on one or both of the facing surfaces 28a and 32a of both the housing 28 and the nut 32. The distance measuring sensor 80 (push-pull operation detection unit of the present invention) may be provided.

When a push-pull operation in the Z-axis direction (see arrows PZ1 to PZ4 in FIG. 4 described above) is performed, the distance measuring sensor 80 determines the distance D between the opposing surfaces 28a and 32a due to this push-pull operation. Detect changes. For example, when the push-pull operation is performed toward the front side in the Z-axis direction, the distance measuring sensor 80 detects a decrease in the distance D between the opposing surfaces 28a and 32a. On the contrary, when the push-pull operation is performed toward the rear side in the Z-axis direction, the distance measurement sensor 80 detects an increase in the distance D between the two opposing surfaces 28a and 32a. Therefore, the distance measuring sensor 80 can detect the operation direction of the push-pull operation in the Z-axis direction and the magnitude of the pressure of the push-pull operation.

Specifically, the operation direction of the push-pull operation in the Z-axis direction can be detected according to the increase / decrease in the distance D detected by the distance measuring sensor 80, and the absolute amount of increase / decrease in the distance D detected by the distance measuring sensor 80 can be detected. The magnitude of the push-pull operation pressure can be detected based on the value.

Further, by providing the distance measuring sensor 80 between the facing surfaces (not shown) facing each other in the X-axis direction of both the housing 38 and the nut 42, the operation direction of the push-pull operation in the X-axis direction and the push-pull operation are provided. The magnitude of the operating pressure can be detected.

Therefore, the control unit 65 (movement control unit 68) identifies the measurement unit 15 corresponding to the specific operation pattern as in the above embodiment, based on the distance detection results of the distance measurement sensors 80 in the Z-axis direction and the X-axis direction. Movement control and coarse movement control of the measuring unit 15 can be performed.

Instead of the Z-axis pressure sensor 60, the X-axis pressure sensor 61, and the distance measuring sensor 80 described above, the push-pull operation detection unit of the present invention is, for example, distortion of the housing of the ophthalmic apparatus 10 due to the push-pull operation. A strain detection sensor or the like that detects the above may be used. That is, the push-pull operation detection unit of the present invention is not particularly limited as long as it can detect changes in pressure, strain, displacement, and the like in the ophthalmic apparatus 10 due to the push-pull operation.

[Modified example of start operation of operation control of ophthalmic device]
FIG. 19 is an explanatory diagram for explaining a modified example of the start operation of the operation control of the apparatus main body 10a. In the above embodiment, the push-pull operation is performed as the start operation of the operation control of the device main body 10a, but the start operation of the present invention is not limited to the push-pull operation, and is performed at a plurality of operation stages of the ophthalmic device 10. It is not particularly limited as long as it is a common start operation. Therefore, for example, as shown in FIG. 19, as the start operation of the operation control of the apparatus main body 10a, the contact sensor 85 that detects the contact operation of the operator or the motion sensor 86 that detects the predetermined operation of the operator is used. It may be provided.

Even in this case as well, the determination unit 82 can determine the correspondence between the type of contact operation or the type of operation of the operator and the type of operation control of the apparatus main body 10a for each of the above-described operation stages. The operation control of the apparatus main body 10a can be determined in the same manner as in the above embodiment.

[Other]
In the ophthalmic apparatus 10 of the above embodiment, the push-pull operation in the Z-axis direction and the X-axis direction can be performed, but the push-pull operation in the Y-axis direction may be feasible. In this case, the push-pull operation in the Y-axis direction is detected by a Y-axis pressure sensor or the like (not shown), and the type of operation control of the apparatus main body 10a is based on the type of push-pull operation in the Y-axis direction and the current operation stage. May be made.

In the above embodiment, the operation lever 17 is tilted or rotated when the measuring unit 15 is finely moved, but it is displayed on an operation unit other than the operation lever 17, for example, an operation button (not shown) and a screen of the monitor 16. The measurement unit 15 may be finely moved by operating the touch operation screen or the like.

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.

In the above embodiment, the coarse movement control of the measurement unit 15 and the operation control of the apparatus main body 10a can be executed by a push-pull operation on at least one of the electric drive unit 14, the measurement unit 15, and the operation lever 17. The present invention can also be applied to the case where only the operation control of the apparatus main body 10a is executed by the push-pull operation. In this case, the noise control of the measurement unit 15 is performed by operating the operation lever 17 or touching the operation screen of the monitor 16 as in the conventional case.

10 ... ophthalmic device, 10a ... device body, 12 ... body base, 14 ... electric drive unit, 15 ... measurement unit, 17 ... operation lever, 18 ... output unit, 22 ... Z-axis drive unit, 24 ... X-axis drive unit, 28, 38 ... housing, 28a, 32a ... facing surface, 32, 42 ... nut, 60 ... Z-axis pressure sensor, 61 ... X-axis pressure sensor, 65 ... control unit, 68 ... movement control unit, 77 ... output control unit, 78 ... Correspondence relationship acquisition unit, 79 ... Correspondence relationship information, 80 ... Distance measurement sensor, 82 ... Determining unit

Claims (12)

The main body of the device that acquires the eye characteristics of the eye to be inspected,
A correspondence relationship acquisition unit that acquires a correspondence relationship between a plurality of operation stages included in the acquisition operation and an operation control of the device main body corresponding to each of the plurality of operation stages.
An operation detection unit that is a start operation of the operation control and detects the start operation common to the plurality of operation stages.
When the start operation is detected by the operation detection unit, the current operation stage is determined from the plurality of operation stages, and the current operation is referred to by the correspondence relationship acquired by the correspondence acquisition unit. A decision unit that determines the operation control corresponding to the stage, and
A control unit that operates the apparatus main body according to the operation control determined by the determination unit, and
An ophthalmic device equipped with. In the correspondence relationship, the type of the operation control and the type of the start operation predetermined for the type of the operation control are stored in association with each other for each of the plurality of operation stages.
When the start operation is detected by the operation detection unit, the determination unit refers to the correspondence relationship and determines the type of operation control corresponding to both the current operation stage and the type of the start operation. The ophthalmic apparatus according to claim 1 to be determined. The apparatus main body includes a base, an eye characteristic acquisition unit for acquiring the eye characteristics, and a drive unit provided on the base for moving the eye characteristic acquisition unit in a predetermined axial direction with respect to the base. Prepare,
The plurality of operation stages include a first operation stage before the start of acquisition of the eye characteristics of the eye to be inspected by the apparatus main body.
In the correspondence relationship, as the operation control corresponding to the first operation stage, an alignment start control that controls the drive of the drive unit and starts the alignment of the eye characteristic acquisition unit with respect to the eye to be inspected, and the drive unit. The left-right switching movement control in which the eye characteristic acquisition unit switches the eye to be inspected from one of the left and right eyes to the other by controlling the drive of the eye characteristic is stored in claim 1 or 2. Optometry equipment. The apparatus main body includes a base, an eye characteristic acquisition unit for acquiring the eye characteristics, and a drive unit provided on the base for moving the eye characteristic acquisition unit in a predetermined axial direction with respect to the base. Prepare,
The plurality of operation stages include a second operation stage in which the driving unit moves the eye characteristic acquisition unit in a direction toward the eye to be inspected.
In the corresponding relationship, as the operation control corresponding to the second operation stage, the first stop in which the drive of the drive unit is controlled to move the eye characteristic acquisition unit in a direction away from the eye to be inspected and then stopped. The ophthalmic apparatus according to any one of claims 1 to 3, wherein the control is stored. The apparatus main body includes a base, an eye characteristic acquisition unit for acquiring the eye characteristics, and a drive unit provided on the base for moving the eye characteristic acquisition unit in a predetermined axial direction with respect to the base. Prepare,
The plurality of operation stages include a third operation stage in which the driving unit moves the eye characteristic acquisition unit in a direction different from the direction toward the eye to be inspected.
Claim 1 stores the second stop control for controlling the drive of the drive unit and stopping the movement of the eye characteristic acquisition unit as the operation control corresponding to the third operation stage. 4. The ophthalmic apparatus according to any one of 4. The apparatus main body has an output unit that outputs an acquisition result of the eye characteristics of the eye to be inspected.
The plurality of operation stages include a fourth operation stage after the acquisition of the eye characteristics of the eye to be inspected by the apparatus main body is completed.
In the correspondence relationship, any one of claims 1 to 5 stores an output execution control in which the output unit executes the output of the acquisition result as the operation control corresponding to the fourth operation stage. The ophthalmic device described. The apparatus main body includes a base, an eye characteristic acquisition unit for acquiring the eye characteristics, and a drive unit provided on the base for moving the eye characteristic acquisition unit in a predetermined axial direction with respect to the base. Prepare,
As the start operation, the operation detection unit detects a push-pull operation in which at least one of the eye characteristic acquisition unit and the drive unit is pushed or pulled in the axial direction.
The ophthalmic apparatus according to any one of claims 1 to 6, wherein the determination unit determines the operation control corresponding to the current operation stage based on the detection result of the push-pull operation by the operation detection unit. The operation detection unit detects the operation direction of the push-pull operation and the magnitude of the pressure of the push-pull operation.
When the magnitude of the pressure detected by the operation detection unit is less than a predetermined threshold value, the determination unit determines the operation control corresponding to the current operation stage.
When the magnitude of the pressure detected by the operation detection unit is equal to or greater than the threshold value, the drive unit directs the eye characteristic acquisition unit in the operation direction of the push-pull operation at a speed corresponding to the magnitude of the pressure. The ophthalmic apparatus according to claim 7, wherein the device is moved. The drive unit has a first engaging portion that moves integrally with the eye characteristic acquisition portion, a second engaging portion that engages with the first engaging portion, and the second engaging portion in the axial direction. With a drive source to move along,
The first engaging portion and the second engaging portion have facing surfaces facing each other in the axial direction.
The operation detection unit is a pressure sensor connected to the facing surfaces of both the first engaging portion and the second engaging portion, and both of them according to the operation direction of the push-pull operation. The ophthalmic apparatus according to claim 7 or 8, which is a pressure sensor that is compressed or stretched between the facing surfaces. The ophthalmic apparatus according to any one of claims 1 to 6, wherein the operation detection unit is a contact sensor that detects a contact operation by an operator as the start operation. The ophthalmic apparatus according to any one of claims 1 to 6, wherein the operation detection unit is a motion sensor that detects a predetermined operation of the operator as the start operation. In the operation method of the ophthalmic device including the main body of the device that acquires the eye characteristics of the eye to be inspected,
The acquisition process in which the correspondence acquisition unit acquires the correspondence between the plurality of operation stages included in the acquisition operation and the operation control of the device main body corresponding to each of the plurality of operation stages.
A detection step in which the operation detection unit detects the start operation that is the start operation of the operation control and is common to the plurality of operation stages.
When the operation detection unit detects the start operation, the determination unit determines the current operation stage from the plurality of operation stages, and refers to the correspondence relationship acquired by the correspondence acquisition unit. A determination step for determining the operation control corresponding to the current operation stage, and
A control step in which the control unit operates the apparatus main body according to the operation control determined by the determination unit.
How to operate an ophthalmic device with.

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