JP2001178677A - Ophthalmologic instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ophthalmologic instrument by which an instrument main body is prevented from being collided with an eye to be examined during an alignment by an examiner. SOLUTION: The present mobile speed of a frame during a coarse adjustment is calculated during the alignment between the eye to be examined and the instrument main body in the ophthalmologic device and, then, the calculated mobile speed of the frame is compared with a previously stored reference mobile speed. When the calculated frame mobile speed is higher than the reference one by a comparison result, a control processing unit controls a current supply circuit to supply a current to the solenoid of a frame fixing mechanism. Then the frame during the coarse adjustment is fixed to a fixing base and stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic apparatus having an alignment function for performing an eye examination such as observation, photographing, and measurement of an intraocular pressure on an eye of an examinee.

[0002]

2. Description of the Related Art Conventionally, in an ophthalmologic apparatus such as a non-contact type intraocular pressure measuring apparatus, a fundus camera apparatus, an ocular refractive power measuring apparatus, etc., observation, photographing, and intraocular pressure measurement are performed on a subject's eye. It is necessary to align the optical axis (device optical axis) of the apparatus main body containing the optometry unit and the like for performing the above operation with the subject's eye. Therefore, the examiner moves the apparatus main body in the horizontal direction and the vertical direction using the operation lever such as a joystick while observing the anterior segment image of the eye to be examined while looking at the viewfinder or the monitor. Alignment is performed between.

[0003]

By the way, in the above-mentioned ophthalmologic apparatus, for example, a non-contact type tonometry apparatus, the tip of an air blowing nozzle provided in the apparatus body for blowing air to the eye to be examined is attached. It is necessary to approach the cornea of the subject's eye. Therefore, there is a restriction that the tip of the air blowing nozzle cannot be sufficiently separated from the apex of the cornea. In addition, for example, in a fundus camera device, in order to observe and photograph the fundus of the eye to be inspected, it is necessary to bring a device main body containing an objective lens and the like close to the eye to be inspected. Therefore, there is a restriction that the tip of the objective lens cannot be sufficiently separated from the vertex of the cornea.

Accordingly, during alignment by such an ophthalmologic apparatus, the apparatus body may be moved in an unintended direction caused by the examiner accidentally touching the joystick, or the joystick may be operated incorrectly by the examiner. In particular, there is a high risk that the air blowing nozzle or the tip of the objective lens collides with the cornea of the eye to be examined, which may damage the cornea of the eye to be examined.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ophthalmologic apparatus capable of preventing a main body of the apparatus from colliding with an eye to be examined during alignment performed by an examiner. Is to do.

[0006]

According to an aspect of the present invention, there is provided an ophthalmologic apparatus having a movable apparatus for performing optometry, the apparatus comprising: It is characterized by comprising detecting means for detecting a moving speed, fixing means for fixing the apparatus main body, and control means for controlling the operation of the fixing means based on the detection result of the detecting means.

[0007] In the ophthalmologic apparatus according to the first aspect of the present invention, in the second aspect of the present invention, the control means may be configured such that the moving speed of the device main body detected by the detecting means is a reference moving speed set in advance. In the above case, the operation of the fixing means is controlled to fix the apparatus main body.

According to another aspect of the present invention, there is provided an ophthalmologic apparatus having a movable apparatus for performing an optometry, wherein the moving speed of the apparatus body is detected. Moving speed detecting means, position detecting means for detecting the position of the apparatus main body, fixing means for fixing the apparatus main body, based on the detection result of the moving speed detecting means and the detection result of the position detecting means. Control means for controlling the operation of the fixing means.

According to a third aspect of the present invention, in the ophthalmologic apparatus according to the fourth aspect of the present invention, the ophthalmologic apparatus further comprises a storage means for storing a plurality of reference movement speeds corresponding to the position of the apparatus main body.
The control unit reads a reference movement speed stored in correspondence with the position of the device main body detected by the position detection unit from the storage unit, and reads the movement of the device main body detected by the movement speed detection unit. When the speed is equal to or higher than the reference moving speed read from the storage means, the operation of the fixing means is controlled to fix the apparatus main body.

According to another aspect of the present invention, there is provided an ophthalmologic apparatus having an apparatus for performing an optometry provided movably within a preset movable range. Detecting means for detecting a moving speed of the apparatus body, determining means for determining whether the apparatus body is located within a predetermined area within the movable range, fixing means for fixing the apparatus body, Control means for controlling the operation of the fixing means based on the detection result of the detection means and the judgment result of the judgment means.

According to a fifth aspect of the present invention, in the ophthalmologic apparatus according to the sixth aspect of the present invention, the control means may include a reference movement speed at which the movement speed of the device main body detected by the detection means is set in advance. When the determining unit determines that the device main body is located within the movable range but outside the predetermined region, the operation of the fixing unit is controlled to control the device main body. It is characterized by being fixed.

According to another aspect of the present invention, there is provided an ophthalmologic apparatus including a movably mounted base and an optometric unit movably provided on the pedestal. Detecting means for detecting the moving speed of the gantry, moving means for moving the optometric unit, and control means for controlling the operation of the moving means based on the detection result of the detecting means. And

According to a seventh aspect of the present invention, in the ophthalmologic apparatus according to the eighth aspect of the present invention, the control means may be configured so that the moving speed of the gantry detected by the detecting means is equal to or higher than a predetermined reference moving speed. In the case of, the operation of the moving means is controlled to move the optometric unit in a direction away from the eye to be examined.

[0014] In order to solve the above-mentioned problem, the invention according to claim 9 includes a gantry provided movably,
In an ophthalmologic apparatus capable of automatic alignment, a judging means for judging whether or not the automatic alignment is possible, a fixing means for fixing the gantry, and an operation of the fixing means based on a judgment result of the judging means. Control means.

According to a ninth aspect of the present invention, in the ophthalmologic apparatus according to the ninth aspect, when the determining means determines that the automatic alignment is possible, the control means controls the fixing means. The automatic alignment is performed after controlling the operation and fixing the gantry.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) In a first embodiment of the present invention, in an intraocular pressure measuring apparatus, which is an example of an ophthalmologic apparatus, a reference movement of the apparatus main body set in advance during alignment between the eye to be examined and the apparatus main body is performed. A description will be given of a case where the moving apparatus is fixed (locked) and stopped when moving at a moving speed higher than the speed.

FIG. 1 is a diagram showing an external configuration of an intraocular pressure measuring apparatus as an example of an ophthalmologic apparatus according to an embodiment of the present invention, as viewed from an examiner.
FIG. 2 is a diagram showing an external configuration of an intraocular pressure measuring device as an example of the ophthalmologic apparatus according to the first embodiment of the present invention, as viewed from the subject side.
1 is a side view showing an external configuration of an intraocular pressure measuring device which is an example of an ophthalmologic apparatus according to a first embodiment of the present invention.

As shown in FIGS. 1, 2 and 3, the ophthalmologic apparatus according to the first embodiment of the present invention comprises a fixed base 1 installed on a table (not shown) or the like. The apparatus main body 2 is provided so as to be movable to the subject, and performs observation, photographing, intraocular pressure measurement, and the like on the subject's eye, and is provided for fixing the subject's face. Y
), And a chin rest 7 having a chin rest 7a and a forehead pad 7b that are movable in the direction (direction).

The apparatus main body 2 is moved horizontally (coarse movement) on the fixed base 1 for rough alignment (coarse alignment) with the eye to be examined (coarse movement). A gantry 2a provided so as to be capable of being used, and an air blowing nozzle 2d for performing observation, photographing, intraocular pressure measurement, and the like on the eye to be inspected, and blowing air to the eye to be inspected when measuring the intraocular pressure.
Provided on the gantry 2a, and configured to be movable (fine movement, slower movement than coarse movement) for fine alignment (fine alignment) with the eye to be examined. An optometry unit 2b and a monitor 2c for displaying an anterior segment image of the subject's eye photographed by the optometry unit 2b are provided.

On the gantry 2a, a joystick 4 used as an operation lever for moving the optometric unit 2b by manual operation by the examiner, on the side opposite to the chin receiving portion 7 across the apparatus main body 2, and a chin rest 7a And a chin support switch 5 for moving the chin in the vertical direction. The gantry 2a includes a gantry moving mechanism 10 shown in FIG. 4 for roughly moving the gantry 2a in the horizontal direction and a gantry fixing mechanism 20 shown in FIG. 5 for fixing the gantry 2a to the fixed base 1.
6, a joystick mechanism 30 for operating the joystick 4, and a gantry moving mechanism 10, a gantry fixing mechanism 20, and a gantry cover 3 for covering the joystick mechanism 30.

The gantry moving mechanism 10, as shown in FIG.
A gantry main body 11 having a through-hole 11a penetrating in the left-right direction, a shaft 12 disposed slidably through the through-hole 11a, and a wheel 1 provided on the shaft 12.
3a and 13b, and guide rails 14a and 14b provided on the fixed base 1 so as to extend in the front-rear direction. When the examiner grips the joystick 4 and applies a force in any direction, the wheel 1
3a and 13b move in the front-back direction while being guided by the guide rails 14a and 14b, and the shaft 12 also moves in the left-right direction due to the sliding. This allows
The gantry 2a moves (coarsely moves) in the horizontal direction.

The gantry fixing mechanism 20 is used as fixing means for fixing the gantry 2a by mechanical action.
As shown in the figure, the solenoid 21, the actuator rod 22 that advances from or retracts to the solenoid 21 along the direction indicated by the arrow 25 depending on whether or not the current is supplied to the solenoid 21, and the solenoid 21 of the actuator rod 22 Are provided at the opposite end, and the fixed base 1 is
And a fixing member 23 pressed against the fixing member 23. Therefore, in the gantry fixing mechanism 20, the actuator rod 22 advances by supplying a current to the solenoid 21, and presses the fixing member 23 against the fixing base 1. Thus, the gantry 2a during the coarse movement is fixed to the fixed base 1 and stopped.

As shown in FIG. 6, the joystick mechanism 30 holds the spherical portion 31 formed below the joystick 4, the lower end portion 32 formed below the spherical portion 31, and the spherical portion 31. It comprises a ball bearing 33 and a sliding plate 34 connected to the lower end 32.
The joystick 4 can turn around the center of the spherical body portion 31 as a fulcrum. A fixed plate 35 having a friction surface on which the sliding plate 34 slides is formed on the fixed base 1.

Accordingly, when the examiner operates the joystick 4, the lower end portion 32 moves the slide plate 34, and the slide plate 34 slides on the fixed plate 35, whereby the optometry unit 2b moves in the horizontal direction. It will make slight movements. In addition,
Optometry unit 2 according to operation speed of joystick 4
When the fine movement speed of b changes, and, for example, the operation speed of the joystick 4 increases, the fine movement speed of the optometry unit 2b also increases.

FIG. 7 is a block diagram showing a part of the configuration of the ophthalmologic apparatus according to the first embodiment of the present invention. As shown in FIG. 7, the control processing unit 50 of the ophthalmologic apparatus according to the first embodiment of the present invention includes a monitor 2c and a joystick 4
An encoder 40 for detecting an operation state (rotational speed, rotation angle, etc.) of the joystick 4 and a solenoid 2
A current supply circuit 41 for supplying a current to the gantry 1; a memory 42 for storing information on a reference moving speed serving as a criterion for determining whether to fix the gantry 2a during coarse movement; An encoder 43 for detecting the rotation speed of the wheels 13a and 13b,
And a drive circuit 44 for moving the chin rest 7a in the vertical direction by operating the chin rest switch 5, and provided in the chin rest part 7 so that the subject can appropriately place the chin on the chin rest 7a and further apply the forehead. A detection unit 8 for detecting whether or not the optometry unit 7b is properly applied; an X-direction alignment mechanism 45 for finely moving the optometry unit 2b in the left-right direction; and a Z-direction alignment mechanism 46 for finely moving the optometry unit 2b in the front-rear direction. Are electrically connected to each other to control the operation of each of these units.

The detection unit 8 is constituted by an optical sensor (light-emitting element and light-receiving element) or a microswitch, and determines whether alignment with the subject's eye can be executed based on the output of the detection unit 8. Is determined.

The control processing unit 50 includes an encoder 43
The moving speed of the gantry 2a during the coarse movement (coarse movement speed) is calculated based on the output of the gantry 2a, and the calculated moving speed of the gantry 2a is stored in the memory 4
2 is compared with the reference moving speed stored in step S2. As a result of this comparison, when the current moving speed of the gantry 2a is equal to or higher than the reference moving speed, the control processing unit 50
1 to supply a current to the solenoid 21. Here, the reference moving speed is a moving speed at which the apparatus body is determined to have a possibility or high collision with the subject's eye due to coarse movement of the gantry that the examiner does not intend.

The rotational speed of the gantry 2a, which is obtained by detecting the rotational speeds of the wheels 13a and 13b and calculated based on the rotational speeds, corresponds to the rotational speed of the gantry 2a in the front-back direction. Therefore, when calculating the moving speed of the gantry 2a in the left-right direction, a detector for detecting the sliding speed of the shaft 72 may be provided.

Next, the operation of the ophthalmologic apparatus according to the first embodiment of the present invention will be described.

FIG. 8 is a flowchart showing a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the first embodiment of the present invention. In the flowchart shown in FIG. 8, first, it is determined whether alignment can be performed between the subject's eye and the apparatus main body 2 (step A1).
This determination is made, for example, based on the output of the detection unit 8 that detects whether the subject has optimally placed the chin on the chin rest 7a and further applied the forehead to the forehead rest 7b. This determination is made, for example, based on whether or not a power supply (not shown) of the ophthalmologic apparatus is turned on.

If it is determined in step A1 that the alignment can be executed, the current moving speed of the gantry 2a during movement (coarse movement) is calculated (step A2). Specifically, the wheels 13a, 13 provided on the gantry 2a
b is detected by the encoder 43, and rotation speed information indicating the detected rotation speed is output from the encoder 43.
Are output to the control processing unit 50. Therefore, the current moving speed of the gantry 2a is calculated based on the rotational speed information output from the encoder 43.

In step A3, the moving speed of the gantry 2a calculated in step A2 is compared with the reference moving speed stored in the memory 42. As a result of the comparison, if the calculated moving speed of the gantry 2a is lower than the reference moving speed in step A4, it is not necessary to fix the gantry 2a to the fixed base 1 by the gantry fixing mechanism 20, so that the step A2 Return to processing.

On the other hand, in step A4, if the calculated moving speed of the gantry 2a is higher than the reference moving speed,
It is highly possible that the gantry 2a is not moved by the examiner unintentionally, and the apparatus main body 2 may collide with the subject's eye. Therefore, the current supply circuit 41 is controlled to supply the solenoid 21 of the gantry fixing mechanism 20 with current. Supply. Thereby, the actuator rod 22 is advanced to press the fixing member 23 against the fixing base 1, and the gantry 2a during the coarse movement is fixed to the fixing base 1 and stopped (step A5).

The direction in which the gantry 2a moves away from the subject's eye,
For example, when the examiner moves the gantry 2a forward, there is no possibility that the apparatus main body 2 collides with the eye to be examined. Therefore, in this case, the gantry 2a is not fixed irrespective of its moving speed (even if it becomes higher than the reference moving speed).

After the above-described rough alignment is completed, the joystick 4 is operated to operate the X-direction alignment mechanism 45 and the Z-direction alignment mechanism 46.
Fine alignment is performed, and the same operation as in the case of coarse alignment is performed in this fine alignment.

That is, if the examiner erroneously contacts the joystick 4 during the fine alignment and the operation speed is increased, the moving speed (fine movement speed) of the optometry unit 2b is correspondingly increased, and the optometry of the apparatus main body 2 is performed. It is conceivable that the unit 2b collides with the subject's eye. Accordingly, the moving speed of the optometry unit 2b, which is slightly moved by the operation of the joystick 4 by the examiner, is detected, and the detected moving speed is set to a predetermined reference moving speed (a reference moving speed different from the reference moving speed in the case of the gantry 2a). In this case, the X-direction alignment mechanism 45 and the Z-direction alignment mechanism 46 are electromagnetically locked to fix the optometry unit 2b and stop its fine movement. This electromagnetic lock is performed by an electromagnetic lock mechanism (not shown) which is a fixing means for fixing the optometric unit 2b by an electric action.

In an ophthalmologic apparatus in which the examiner performs manual alignment of the eye to be examined, the optometry unit 2b can be moved in the vertical direction even when the gantry 2a is fixed.

The gantry 2a and the optometry unit 2b fixed as described above are released, for example, after a predetermined period of time elapses, so that they can be moved again, and the examiner sets a release switch (not shown) by the examiner. By pressing it, the fixing is released and it can be moved again. This release switch may be shared by a measurement / photographing switch (not shown) provided on the joystick. (Embodiment 2) In a second embodiment of the present invention, the apparatus body moves away from the subject during alignment between the apparatus body of the tonometry apparatus, which is an example of an ophthalmologic apparatus, and the eye to be examined. When the apparatus is moving in a first movable area provided at a position and the moving speed at that time is equal to or higher than a first reference moving speed set in advance, the apparatus main body is fixed, and the apparatus main body is fixed to the first movable area. It is moving in a second movable region provided closer to the eye than the movable region, and the moving speed at that time is equal to or higher than a second reference moving speed set lower than the first reference moving speed. The case where the apparatus main body is fixed also at the time is described.

FIG. 9 is a block diagram showing a part of the configuration of the ophthalmologic apparatus according to the second embodiment of the present invention. As shown in FIG. 9, the ophthalmologic apparatus according to the second embodiment of the present invention has substantially the same configuration as that of the ophthalmologic apparatus according to the first embodiment of the present invention. A position detection switch 47 for detecting a position, and a memory 42a for storing information relating to a plurality of reference moving speeds serving as a criterion for determining whether or not to fix the gantry 2a in accordance with the position of the gantry 2a during coarse movement.
And

FIGS. 10 and 11 are top views of the external configuration of the ophthalmologic apparatus according to the second embodiment of the present invention. FIG. 10 shows a state of the gantry at the start of the coarse alignment execution, and FIG. 11 shows a state of the gantry moving from the first movable area to the second movable area during the coarse alignment execution.

As shown in FIG. 10, in the ophthalmologic apparatus according to the second embodiment of the present invention, the first movable area AR1 is set at a position distant from the eye E, and the first movable area AR1 is further set. The second movable region A at a position closer to the eye E than
R2 is set, and the position of the gantry 2a, that is, to which movable area the gantry 2a has moved (extended) is detected by the position detection switch 47.

The position detection switch 47 is provided at a boundary AB between the first movable area AR1 and the second movable area AR2, and the end 2e of the gantry 2a on the eye to be inspected is moved to the first movable area A.
When it is located at R1, it is in the off state, and as shown in FIG. 11, the end 2e of the gantry 2a is moved to the second movable area AR2.
It is configured to be turned on when moving (advancing) to.

The control processing unit 50a detects the on / off state of the position detection switch 47, and
a is the first movable area AR1 or the second movable area AR2
It is determined which of the movable areas is located. Further, the control processing unit 50a calculates the moving speed of the gantry 2a during the coarse movement based on the output of the encoder 43 that detects the rotational speed of the wheels 13a, 13b.

In the memory 42a, the gantry 2a is
Of the first movable region AR1
And information on the second reference movement speed used when the gantry 2a is located in the second movable area AR2. As described above, in the second embodiment of the present invention, the reference moving speed which is a criterion for determining whether to fix the gantry during coarse movement is changed depending on whether the gantry is located in one of the two movable regions. ing.

That is, when the gantry is moving in the first movable area, even if the examiner accidentally touches the joystick or the like and the gantry moves at a high speed, the distance between the main body of the apparatus and the eye to be inspected is increased. Has a certain margin in terms of distance, and the possibility of collision of the apparatus body is extremely low. Therefore, in such a case, the reference moving speed of the gantry is set to a relatively high value.

On the other hand, in a case where the apparatus main body and the subject's eye are close to each other and the gantry is moving in the second movable area, if the examiner erroneously touches the joystick or the like and the moving speed of the gantry is increased, the distance is increased. Since there is no room in the apparatus, there is a possibility that the apparatus main body may collide with the eye to be examined before the movement speed is detected and the gantry is fixed. Therefore, in such a case, the reference moving speed of the gantry is set to a value relatively slower than the reference moving speed used when the gantry is moving in the first movable region.

The control processing unit 50a reads information on the corresponding reference moving speed from the memory 42a based on the on / off state of the position detection switch 47, and calculates the calculated moving speed of the gantry 2a with the read reference moving speed. Compare. When the position detection switch 47 is in the off state, information on the first reference moving speed is stored in the memory 42.
When the position detection switch 47 is on, the information about the second reference movement speed lower than the first reference movement speed is read from the memory 42a.

As a result of this comparison, when it is determined that the current moving speed of the gantry 2a during the coarse movement is equal to or higher than the read reference moving speed, a current is supplied from the current supply circuit 41 to the solenoid 21. Thus, the gantry 2a is fixed.

Next, the operation of the ophthalmologic apparatus according to the second embodiment of the present invention will be described.

FIG. 12 is a flowchart showing a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the second embodiment of the present invention. In the flowchart shown in FIG. 12, first, it is determined whether alignment can be performed between the subject's eye and the apparatus main body 2 (step B).
1). This determination is made, for example, based on the output of the detection unit 8 or whether the power of the ophthalmic apparatus is turned on.

If it is determined in step B1 that the alignment can be executed, the current position of the gantry 2a during coarse movement is detected in step B2. Specifically, by detecting the on / off state of the position detection unit 47, it is determined which of the first movable area AR1 and the second movable area AR2 the gantry 2a is located in. .

Further, in step B3, the current moving speed of the gantry 2a is calculated.

In step B4, a corresponding reference moving speed is read from the memory 42a based on the position of the gantry 2a detected in step B2. Thereafter, the moving speed of the gantry 2a calculated in step B3 is compared with the read reference moving speed.

As a result of this comparison, in step B5,
If the calculated moving speed of the gantry 2a is lower than the read reference moving speed, the gantry fixing mechanism 20 uses the gantry 2a.
It is not necessary to fix to the fixing base 1, so that step B2
Return to the processing of.

On the other hand, if the moving speed of the gantry 2a calculated in step B5 is equal to or higher than the read reference moving speed, there is a high possibility that the gantry 2a is unintentionally moved by the examiner. It is conceivable that the eye E collides with the eye E. Therefore, in this case, the current supply circuit 41
To supply a current to the solenoid 21 of the gantry fixing mechanism 20. As a result, the actuator rod 22 is advanced to press the fixing member 23 against the fixing base 1, and the gantry 2a during the coarse movement is fixed to the fixing base 1 and stopped (step B6).

When the gantry 2a is moved away from the subject's eye E, for example, when the examiner moves the gantry 2a forward, there is no possibility that the apparatus main body 2 will collide with the subject's eye E.
Therefore, in this case, the gantry 2a is not fixed regardless of its moving speed.

After the above-described rough alignment is completed, fine alignment is performed by the X-direction alignment mechanism 45 and the Z-direction alignment mechanism 46. In this fine alignment, the same operation as that of the coarse alignment is performed. .

That is, the joystick 4 by the examiner
The position and the moving speed of the optometry unit 2b which slightly moves by the operation of are detected. The detected moving speed is a reference moving speed set in advance corresponding to the position detected by the gantry 2a (a reference moving speed different from the reference moving speed in the case of the gantry 2a, and is separately stored in the memory 42a). ), The X-direction alignment mechanism 45 and Z
The fine movement of the optometry unit 2b is stopped by electromagnetically locking the direction alignment mechanism 46.

Here, the movable area of the apparatus main body (the gantry, the optometry unit) is divided into two, different reference movement speeds are set in advance, and different reference movement speeds are used in accordance with the position of the apparatus main body. Although the comparison with the moving speed is performed, it is also possible to divide the movable region of the apparatus main body into three or more, and set a different reference moving speed in each movable region in advance.

In an ophthalmologic apparatus that performs manual alignment by the examiner on the subject's eye, the optometry unit 2b can be moved in the vertical direction even when the gantry 2a is fixed.

As with the first embodiment of the present invention, the fixing of the gantry or the optometric unit fixed as described above is released after a predetermined time has elapsed or by pressing the release switch. Has been removable. This release switch may be shared by a measurement / photographing switch provided on the joystick. (Embodiment 3) In a third embodiment of the present invention, during alignment between the apparatus main body of a fundus camera apparatus, which is an example of an ophthalmologic apparatus, and an eye to be inspected, a predetermined range within the movable range of the apparatus main body is set. If the apparatus main body is located within the predetermined area, the apparatus main body is not fixed, and even if the apparatus main body is within its movable range, the apparatus main body moves out of the predetermined area and the moving speed of the apparatus main body at that time A case will be described in which the moving main body is fixedly stopped when the speed becomes equal to or higher than a preset reference moving speed.

FIG. 13 is a diagram showing the external configuration of a fundus camera device as an example of the ophthalmologic apparatus according to the third embodiment of the present invention, as viewed from the examiner. As shown in FIG. 13, the ophthalmologic apparatus according to the third embodiment of the present invention is provided with a fixed base 61 installed on a table or the like (not shown), and provided on the fixed base 61,
Apparatus body 6 for observing and photographing the eye to be examined
2 and a chin rest 67 provided to fix the face of the subject and having a vertically movable chin rest and a forehead rest (not shown).

The apparatus main body 62 is provided on a fixed base 61 so as to be coarsely movable in a horizontal direction on a fixed base 61 for coarse alignment with the eye to be inspected, and is provided on the mount 62a, and is provided for the eye to be inspected. A fundus camera 62b used as an optometry unit configured to perform observation and photographing and to be finely movable for fine alignment with an eye to be examined, and a reticle camera 62b provided on a gantry 62a to support the fundus camera 62b. It has a support part 62c.

The fundus camera 62b has an objective lens barrel 6
2d, an eyepiece tube 62e, and a photographing camera 62f are attached.

Further, the first base of the present invention is mounted on the gantry 62a.
As in the case of the ophthalmologic apparatus according to the embodiment, a joystick 64 and a chin rest switch 65 are provided.
Further, the gantry 62a includes a gantry moving mechanism configured as in FIG. 4, a gantry fixing mechanism configured as in FIG. 5, and a joystick mechanism configured as in FIG. .

FIG. 14 is a block diagram showing a part of the configuration of the ophthalmologic apparatus according to the third embodiment of the present invention. As shown in FIG. 14, the control processing unit 57 of the ophthalmologic apparatus according to the third embodiment of the present invention includes a joystick 64 and an encoder 5 for detecting the operation state of the joystick 64.
1, a current supply circuit 52 for supplying a current to the solenoid to fix the gantry 62a during coarse movement,
a memory 53 for storing information relating to a reference moving speed as a criterion for determining whether or not a is fixed; an encoder 54 for detecting a rotational speed of a wheel provided in a gantry moving mechanism as shown in FIG. A receiving switch 65, a drive circuit 66 for moving the chin rest in the vertical direction by operating the chin rest switch 65, and a chin rest part 67 provided so that the subject can appropriately place the chin on the chin rest and further forehead the forehead A detection unit 69 for detecting whether the contact is properly made, an X-direction alignment mechanism 55 for finely moving the fundus camera 62b in the left-right direction, and a Z-direction alignment mechanism 56 for finely moving the fundus camera 62b in the front-rear direction Are electrically connected to a position detection switch 68 for detecting the position of the gantry 62a, and controls the operation of each of these units.

In the ophthalmologic apparatus according to the third embodiment of the present invention, a predetermined area is set within the movable range of the gantry 62a, and a position detection switch determines whether the gantry 62a has moved out of the predetermined area. 68. That is,
The position detection switch 68 is off when the end of the gantry 62a on the subject's eye side is located within the predetermined area, and the end of the gantry 62a on the subject's eye side moves out of the predetermined area. It is configured to be turned on when (entering).

The control processing unit 57 detects whether the coarsely moving gantry 62a is located within a predetermined area or outside the predetermined area by detecting the on / off state of the position detection switch 68. to decide. Further, the control processing unit 57 calculates the moving speed of the gantry 62a during movement (coarse movement) based on the output of the encoder 54.

Further, the control processing unit 57 compares the calculated moving speed of the gantry 62 a with the reference moving speed stored in the memory 53. As a result of this comparison, the gantry 62a
Moves out of the predetermined area, and when the current moving speed of the gantry 62a is equal to or higher than the reference moving speed, the control processing unit 57 controls the current supply circuit 52 to supply current to the solenoid, thereby The gantry 62a is fixed.

Next, the operation of the ophthalmologic apparatus according to the third embodiment of the present invention will be described.

FIG. 15 is a flowchart showing a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the third embodiment of the present invention. In the flowchart shown in FIG. 15, first, it is determined whether alignment can be performed between the subject's eye and the apparatus main body 62 (step D).
1). This determination is made based on, for example, the output of the detection unit 69 or whether the power of the ophthalmic apparatus is turned on.

If it is determined in step D1 that the alignment can be executed, the current position of the gantry 62a during coarse movement is detected in step D2. Specifically, the on / off state of the position detection switch 68 is detected.

In step D3, it is determined whether the gantry 62a is located inside or outside a predetermined area based on the on / off state of the position detection switch 68 detected in step D2. In step D3, the gantry 62
If a is located within the predetermined area, step D
It returns to the process of 2.

On the other hand, in step D3, the gantry 62a
Is located outside the predetermined area, the gantry 62a
Is calculated (step D4).

In step D5, the moving speed of the gantry 62a calculated in step D4 is compared with the reference moving speed stored in the memory 53. As a result of the comparison, if the calculated moving speed of the gantry 62a is lower than the reference moving speed in step D6, it is not necessary to fix the gantry 62a to the fixed base 61 by the gantry fixing mechanism. Return to

On the other hand, if the calculated moving speed of the gantry 62a is equal to or higher than the reference moving speed in step D6, there is a high possibility that the gantry 62a is unintentionally moved by the examiner, and the apparatus body 62 is damaged. Since the collision with the optometry E is considered, the current supply circuit 52 is controlled to supply a current to the solenoid of the gantry fixing mechanism. Thus, the gantry 62a during the coarse movement is fixed to the fixed base 61 and stopped (step D7).

When the gantry 62a moves away from the subject's eye, for example, when the examiner moves the gantry 62a forward, there is no possibility that the main body 62 collides with the subject's eye. Therefore, in this case, the gantry 62a is not fixed regardless of its moving speed.

After the above-described rough alignment is completed, fine alignment is performed by the X-direction alignment mechanism 55 and the Z-direction alignment mechanism 56. In this fine alignment, the same operation as that of the coarse alignment is performed.

That is, the joystick 6 by the examiner
By detecting the position of the fundus camera 62b that slightly moves by the operation of 4, it is determined whether or not the fundus camera 62b is located in a predetermined area within the movable area. Fundus camera 6
If it is determined that 2b is located outside the predetermined area, the movement speed of the fundus camera 62b is detected and a reference movement speed set in advance (a reference movement speed different from the reference movement speed in the case of the gantry 62a). And stored separately in the memory 53). If the detected moving speed of the fundus camera 62b is equal to or higher than the reference moving speed, the fine movement of the fundus camera 62b is stopped by electromagnetically locking the X-direction alignment mechanism 55 and the Z-direction alignment mechanism 56.

In an ophthalmologic apparatus that performs manual alignment by the examiner on the eye to be examined, the fundus camera 62b can be moved up and down even when the gantry 62a is fixed.

The gantry or the fundus camera fixed as described above is released from the fixed state after a predetermined time elapses or by pressing a release switch, as in the case of the first embodiment of the present invention. Has been removable.
This release switch may be shared by a measurement / photographing switch provided on the joystick. (Fourth Embodiment) In a fourth embodiment of the present invention, in an intraocular pressure measuring apparatus having an automatic alignment function, which is an example of an ophthalmologic apparatus, a fourth embodiment of the present invention is performed during the execution of alignment between the subject's eye and the apparatus main body. The gantry is fixed by the same determination processing as in any of the first to third embodiments, but the gantry is fixed and moved even when the alignment target image enters the automatic alignment area during the execution of this alignment. The following describes a case where the optometry unit is not moved and the optometry unit is moved by automatic alignment.

FIG. 16 is a diagram showing an external configuration of an intraocular pressure measuring apparatus having an automatic alignment function, which is an example of an ophthalmologic apparatus according to a fourth embodiment of the present invention, as viewed from the examiner, and FIG. It is the figure which looked at the external appearance structure of the intraocular pressure measuring device which has an automatic alignment function which is an example of the ophthalmologic apparatus of Embodiment 4 from the examinee side.

As shown in FIGS. 16 and 17, the ophthalmologic apparatus according to the fourth embodiment of the present invention is provided with a fixed base 71 installed on a table (not shown) or the like, and provided on the fixed base 71. An apparatus main body 72 for performing observation, photographing, intraocular pressure measurement, and the like on the subject's eye, and a chin rest 77a provided to fix the subject's face and movable in the vertical direction.
And a chin receiving portion 77 having a forehead pad 77b.

The apparatus main body 72 is provided with a gantry 72a provided on a fixed base 71 so as to be coarsely movable in a horizontal direction for rough alignment with an eye to be inspected.
An optometry unit that has an air blowing nozzle 72d for performing tonometry and blowing air to the subject's eye, is provided on a gantry 72a, and is configured to be finely movable for automatic alignment with the subject's eye. 72b, and a monitor 72c for displaying an anterior segment image of the subject's eye photographed by the optometry unit 72b, an alignment optotype image used for alignment, and the like.

The gantry 72a includes a gantry moving mechanism configured as in FIG. 4, a gantry fixing mechanism configured as in FIG. 5, and a joystick mechanism configured as in FIG. I have. Note that a joystick 74 and a chin receiving switch 75 are provided on the gantry 72a.

FIG. 18 is a block diagram showing a part of the configuration of an ophthalmologic apparatus according to the fourth embodiment of the present invention. As shown in FIG. 18, the control processing unit 79 of the ophthalmologic apparatus according to the fourth embodiment of the present invention includes a monitor 72c, a joystick 74, an encoder 78 for detecting an operation state of the joystick 74, and a coarse movement. A memory 80 for storing information relating to a reference moving speed serving as a criterion for determining whether or not the gantry 72a is fixed, a chin rest switch 75,
A drive circuit 82 for moving the chin rest 77a in the vertical direction by operating the chin rest switch 75 and a chin rest part 77 provided for the subject to appropriately place the chin on the chin rest 77a, and further forehead to the forehead rest 77b A detection unit 88 for detecting whether or not the eye contact is properly applied; an X-direction alignment mechanism 83 for finely moving the optometry unit 72b in the left-right direction (X direction); and a fine movement for the up-down direction (Y direction). , A Z-direction alignment mechanism 85 for finely moving the optometry unit 72b in the front-rear direction (Z direction), and a current supply circuit 91 for supplying a current to a solenoid for fixing the gantry 72a.
Are electrically connected to an encoder 92 for detecting a rotation speed of a wheel provided in a gantry moving mechanism as shown in FIG. 4, and controls the operation of each of these units.

The control processing unit 79 performs the gantry fixing determination process in the same manner as in any one of the first to third embodiments of the present invention, and determines that the gantry 72a needs to be fixed. In this case, the current supply circuit 91 is controlled to supply current to the solenoid of the gantry fixing mechanism. As a result, the gantry 72a during the coarse movement is fixed and the rough alignment is forcibly stopped.

As shown in FIG. 19, the control processing unit 79 places the alignment target image 1 on the anterior eye image 100 of the eye E displayed on the display screen of the monitor 72c.
01, an automatic alignment area 102 which is an area where automatic alignment is possible, and an automatic alignment area 1
02 and an automatic measurement area 103 which is an area where automatic intraocular pressure measurement is possible.

The examiner operates the joystick 74 in the coarse alignment to move the alignment target image 101 so that the alignment target image 101 enters the automatic alignment area 102. When the alignment target image 101 enters the automatic alignment area 102, automatic alignment is started, the eye E is aligned in the automatic measurement area 103, and the intraocular pressure is automatically measured.

Next, the operation of the ophthalmologic apparatus according to the fourth embodiment of the present invention will be described.

FIG. 20 is a flowchart showing a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the fourth embodiment of the present invention. In the flowchart shown in FIG. 20, first, it is determined whether alignment can be performed between the subject's eye and the apparatus main body 72 (step E).
1). This determination is made based on, for example, the output of the detection unit 88 or whether the power of the ophthalmic apparatus is turned on.

If it is determined in step E1 that the alignment can be executed, one of the above-described gantry fixing determination processes is performed in step E2. Thereby, when there is a possibility that the apparatus main body 72 collides with the eye to be examined, the gantry 72a is fixed and stopped.

In step E3, the alignment target image 101 and the automatic alignment area 1 are placed on the anterior eye image 100 of the eye E displayed on the display screen of the monitor 72c.
02 is displayed. In this case, the automatic measurement area 103 is also displayed in the automatic alignment area 102.

At Step E4, the alignment target image 1
It is determined whether 01 has entered the automatic alignment area 102. In step E4, if the alignment optotype image 101 is not within the automatic alignment area 102, automatic alignment cannot be started, and the process returns to step E2.

On the other hand, when the alignment target image 101 enters the automatic alignment area 102 in step E4, the current supply circuit 91 is controlled to supply a current to the solenoid of the gantry fixing mechanism. Thus, the gantry 72a during the coarse movement is fixed to the fixed base 71 and stopped (step E5), and the rough alignment is completed.

The gantry 72a fixed as described above
As in the case of the first embodiment of the present invention, the fixing is released after a predetermined time elapses or by pressing a release switch, thereby enabling re-movability. This release switch may be shared by a measurement / photographing switch provided on the joystick.

When the gantry 72a is moved away from the eye E, for example, when the examiner moves the gantry 72a forward, there is no possibility that the apparatus main body 72 collides with the eye E.
Therefore, in this case, the gantry 72a is not fixed regardless of its moving speed.

After the rough alignment is completed and the gantry 72a is fixed, automatic alignment is started. An X-direction alignment mechanism 83 under the control of the control processing unit 79;
The optometry unit 72b is finely moved by the Y-direction alignment mechanism 84 and the Z-direction alignment mechanism 85.
In the case of entering into 3, the measurement of the intraocular pressure is automatically started. After the measurement of the intraocular pressure is completed, the fixing of the gantry 72a is released.

The automatic alignment may be released by using a release switch or the like. In this case, the gantry 72a
Since it is not necessary to fix, fix the fixation.

When the measurement of the intraocular pressure is completed, the fixing of the gantry 72a may be released by using a release switch or the like. Further, when the intraocular pressure measurement is completed, the fixing of the gantry 72a may be released after the optometry unit 72b is moved to the original position (for example, the initial position for starting the automatic alignment). (Fifth Embodiment) In a fifth embodiment of the present invention, in an intraocular pressure measuring apparatus having an automatic alignment function, which is an example of an ophthalmologic apparatus, a gantry is set in advance during execution of alignment between an eye to be examined and a main body of the apparatus. When moving at a moving speed higher than the reference moving speed, the optometric unit that is automatically aligned does not collide with the subject's eye (the direction away from the subject's eye,
The case of moving (evacuating) in the evacuation direction) will be described.

FIG. 21 is a block diagram showing a part of the configuration of an ophthalmologic apparatus according to the fifth embodiment of the present invention. As shown in FIG. 21, the ophthalmologic apparatus according to the fifth embodiment of the present invention has substantially the same configuration as the ophthalmologic apparatus according to the fourth embodiment of the present invention, but the movement of the gantry 72a during the coarse movement is performed. A memory 80a for storing information on a moving distance (retreat distance) for moving (retreating) the optometry unit 72b in a direction (retreat direction) so as not to collide with the subject's eye E according to the speed, and the optometry unit 72b For example, the Z-direction alignment mechanism 8 is configured to retract the optometry unit 72b in a direction that avoids the collision with the subject's eye E when there is a possibility of colliding with the optometry E.
And a control unit 79a that also controls the operation of Step 5.

FIG. 22 is a side view showing the external configuration of an ophthalmologic apparatus according to the fifth embodiment of the present invention. Note that FIG.
(A) shows the state of the optometry unit at the start of the coarse alignment execution, and FIG. 22 (b) shows a state in which the optometry unit has moved (evacuated) to a position where it does not collide with the eye to be examined during the execution of the coarse alignment. FIG. 22A,
In (b), in order to clarify the positional relationship between the ophthalmologic apparatus and the subject's eye according to the fifth embodiment of the present invention, the illustration of the chin receiver is omitted.

As shown in FIG. 22A, the fifth embodiment of the present invention
In the ophthalmologic apparatus of the embodiment, the air blowing nozzle 72d needs to be brought close to the eye E for measuring the intraocular pressure, and protrudes from the apparatus main body 72 toward the subject. Therefore, as shown in FIG. 22 (b), the gantry 72a is quickly moved in the movement direction MD1 during the rough alignment (coarse movement).
In this case, the air blowing nozzle 72d is
May collide.

Therefore, in the control processing unit 79a,
The moving speed of the gantry 72a during the coarse movement is calculated based on the output of the encoder 92. Next, information on the reference moving speed stored in the memory 80a in advance is read, and the calculated moving speed of the gantry 72a is compared with the read reference moving speed.

As a result of this comparison, when it is determined that the current moving speed of the gantry 72a during the coarse movement is equal to or higher than the read reference moving speed, the air blowing nozzle 72d sets the eye E to be inspected.
May collide. Therefore, the control processing unit 7
9a, for example, operates the Z-direction alignment mechanism 85 to retract the optometric unit 72b in the retracting direction MD2 (here, the direction approaching the examiner). Here, the evacuation direction is
The direction is such that the air blowing nozzle 72d does not collide with the eye E.

Next, the operation of the ophthalmologic apparatus according to the fifth embodiment of the present invention will be described.

FIG. 23 is a flowchart showing the optometry unit evacuation determination processing by the control processing unit of the ophthalmologic apparatus according to the fifth embodiment of the present invention. In the flowchart shown in FIG. 23, first, it is determined whether alignment can be executed between the eye E and the apparatus main body 72 (step F1). This determination is made based on, for example, the output of the detection unit 88 or whether the power of the ophthalmic apparatus is turned on.

If it is determined in step F1 that the alignment can be executed, the current moving speed of the gantry 72a during movement (coarse movement) is calculated (step F2).

In step F3, the moving speed of the gantry 72a calculated in step F2 is compared with the reference moving speed stored in the memory 80a. As a result of the comparison, in Step F4, if the calculated moving speed of the gantry 72a is lower than the reference moving speed, the optometry unit 72b
It is determined that there is no possibility of collision with the eye E, and it is not necessary to retreat the optometry unit 72a in a direction away from the eye E, and the process returns to step F2.

On the other hand, if the calculated moving speed of the gantry 72a is equal to or higher than the reference moving speed in step F4, there is a high possibility that the gantry 72a is unintentionally moved by the examiner. The unit 72b (especially the air blowing nozzle 72d) may collide with the eye E. Therefore, information on the moving distance (retreat distance) stored in the memory 80a is read, and the optometry unit 72b is moved in the retreat direction MD2 by the read moving distance.
Then, for example, the Z-direction alignment mechanism 85 is operated to be fixed at that position (step F5).

When the gantry 72a moves away from the subject's eye E, for example, when the examiner moves the gantry 72a forward, there is no possibility that the optometric unit 72b of the apparatus main body 72 collides with the subject's eye E. Therefore, in this case, the gantry 72
a is not fixed regardless of its moving speed.

After the above-described rough alignment by the movement of the gantry 72a is completed, the gantry 72a is fixed by the gantry fixing mechanism, and then the automatic alignment is started. Under the control of the control processing unit 79a, the optometry unit 72b is slightly moved by the X-direction alignment mechanism 83, the Y-direction alignment mechanism 84, and the Z-direction alignment mechanism 85, whereby the alignment target image 101 enters the automatic measurement area 103. In this case, the measurement of the intraocular pressure is automatically started. After the measurement of the intraocular pressure is completed, the fixing of the gantry 72a is released.

As in the case of the first embodiment of the present invention, the fixed gantry 72a is unlocked after a predetermined time has elapsed or by pressing a release switch so that it can be moved again. This release switch may be shared by a measurement / photographing switch provided on the joystick.

When the automatic alignment is released by using a release switch or the like, it is not necessary to fix the gantry 72a, so that the fixing is also released.

When the measurement of the intraocular pressure is completed, the fixing of the gantry 72a may be released after the optometry unit 72b is moved to the original position (for example, the initial position for starting the automatic alignment).

When the gantry 72a released from the fixation is separated from the eye E and returned to the original position, the optometry unit 7
If 2b has moved by the evacuation distance, the optometry unit 72
b is moved in the reverse direction by the retreat distance.

As described above, in the fifth embodiment of the present invention, when the moving speed of the gantry 72a is equal to or higher than the reference moving speed, the optometric unit 72b is retracted in the retreating direction to be in contact with the eye E to be examined. Try to avoid collisions. However, for example, when the gantry 72a starts moving after the coarse alignment is started, the optometry unit 72a may be retracted in the retracting direction even if the moving speed of the gantry 72a has not reached the reference moving speed.

Alternatively, the optometry unit 72b may be previously moved in the retreat direction by a predetermined distance so that the air blowing nozzle 72d does not protrude toward the subject's eye of the apparatus main body 72. For example, when the power of the ophthalmic apparatus is turned on, the optometric unit 72b is moved in the evacuation direction by a predetermined distance, and when the power of the ophthalmic apparatus is turned off, the optometry unit 72b is moved in the direction opposite to the evacuation direction by the predetermined distance. To return to the original position.

[0119]

As described above, according to the present invention, in various ophthalmologic apparatuses such as an intraocular pressure measuring apparatus, a fundus camera apparatus, and an eye refractive power measuring apparatus, the apparatus main body is determined based on the moving speed of the apparatus main body. The optometry unit is retracted in the direction away from the eye to be examined, or the optometry unit is retracted based on the moving speed of the gantry. It is possible to perform optometry while improving safety for optometry.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external configuration of an intraocular pressure measurement device, which is an example of an ophthalmologic apparatus according to a first embodiment of the present invention, as viewed from an examiner.

FIG. 2 is a diagram of an external configuration of an intraocular pressure measurement device, which is an example of the ophthalmologic apparatus according to the first embodiment of the present invention, viewed from a subject side.

FIG. 3 is a side view showing an external configuration of an intraocular pressure measurement device as an example of the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 4 is a diagram illustrating a configuration of a gantry moving mechanism in the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 5 is a diagram illustrating a configuration of a gantry fixing mechanism in the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 6 is a diagram illustrating a configuration of a joystick mechanism in the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 7 is a block diagram illustrating a part of the configuration of the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 8 is a flowchart showing a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the first embodiment of the present invention.

FIG. 9 is a block diagram illustrating a part of a configuration of an ophthalmologic apparatus according to a second embodiment of the present invention.

FIG. 10 is a top view of an external configuration of an ophthalmologic apparatus according to a second embodiment of the present invention.

FIG. 11 is a diagram of an external configuration of an ophthalmologic apparatus according to a second embodiment of the present invention as viewed from above.

FIG. 12 is a flowchart illustrating a gantry fixing determination process by a control processing unit of the ophthalmologic apparatus according to the second embodiment of the present invention.

FIG. 13 is a diagram of an external configuration of a fundus camera device, which is an example of an ophthalmologic apparatus according to a third embodiment of the present invention, as viewed from an examiner.

FIG. 14 is a block diagram illustrating a part of a configuration of an ophthalmologic apparatus according to a third embodiment of the present invention.

FIG. 15 is a flowchart illustrating a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the third embodiment of the present invention.

FIG. 16 is a diagram of an external configuration of an intraocular pressure measurement device having an automatic alignment function, which is an example of an ophthalmologic apparatus according to a fourth embodiment of the present invention, as viewed from an examiner.

FIG. 17 is a diagram illustrating an external configuration of an intraocular pressure measurement apparatus having an automatic alignment function, which is an example of an ophthalmologic apparatus according to a fourth embodiment of the present invention, as viewed from a subject.

FIG. 18 is a block diagram illustrating a part of a configuration of an ophthalmologic apparatus according to a fourth embodiment of the present invention.

FIG. 19 is a diagram illustrating an example of a display screen of a monitor of the ophthalmologic apparatus according to the fourth embodiment of the present invention.

FIG. 20 is a flowchart illustrating a gantry fixing determination process by the control processing unit of the ophthalmologic apparatus according to the fourth embodiment of the present invention.

FIG. 21 is a block diagram illustrating a part of a configuration of an ophthalmologic apparatus according to a fifth embodiment of the present invention.

FIG. 22 is a side view illustrating an external configuration of an ophthalmologic apparatus according to a fifth embodiment of the present invention.

FIG. 23 is a flowchart illustrating an optometry unit evacuation determination process performed by the control processing unit of the ophthalmologic apparatus according to the fifth embodiment of the present invention.

[Explanation of symbols]

 E Eye to be inspected 1, 61, 71 Fixed base 2, 62, 72 Main body 2a, 62a, 72a Stand 2b, 72b Eye examination unit 2c, 72c Monitor 2d, 72d Air blowing nozzle 3 Stand cover 4, 64, 74 Joystick 5, 65, 75 chin rest switch 7, 67, 77 chin rest part 7a, 77a chin rest 7b, 77b forehead 8, 69, 88 detection unit 10 gantry moving mechanism 11 gantry bodies 13a, 13b, wheels 20 gantry fixing mechanism 21 solenoid 30 Joystick mechanism 40, 43, 51, 54, 78, 92 Encoder 41, 52, 91 Current supply circuit 42, 42a, 53, 80, 80a Memory 44, 66, 82 Drive circuit 45, 55, 83 X direction alignment mechanism 84 Y Direction alignment mechanism 46, 56, 85 Z-direction alignment Control mechanism 47, 68 position detection switch 50, 50a, 57, 79, 79a control processing unit 62b fundus camera

Claims (10)

[Claims] 1. An ophthalmologic apparatus provided with a device main body movably provided for performing an optometry, a detecting means for detecting a moving speed of the device main body, a fixing means for fixing the device main body, and the detection An ophthalmologic apparatus comprising: control means for controlling an operation of the fixing means based on a detection result of the means. 2. The apparatus according to claim 1, wherein the control unit controls the operation of the fixing unit when the moving speed of the apparatus main body detected by the detecting unit is equal to or higher than a predetermined reference moving speed. The ophthalmologic apparatus according to claim 1, wherein? 3. An ophthalmologic apparatus provided with a device main body movably provided for performing optometry, a moving speed detecting means for detecting a moving speed of the device main body, and a position detection for detecting a position of the device main body. Means, fixing means for fixing the apparatus main body, and control means for controlling the operation of the fixing means based on the detection result of the moving speed detection means and the detection result of the position detection means. Ophthalmic device. 4. A storage unit for storing a plurality of reference movement speeds corresponding to the position of the apparatus main body, wherein the control unit stores the reference movement speed in accordance with the position of the apparatus main body detected by the position detection unit. The reference movement speed is read from the storage means, and when the movement speed of the apparatus main body detected by the movement speed detection means is equal to or higher than the reference movement speed read from the storage means, the operation of the fixing means is stopped. The ophthalmologic apparatus according to claim 3, wherein the apparatus main body is controlled to be fixed. 5. An ophthalmologic apparatus comprising an apparatus main body for performing optometry provided movably within a preset movable range, a detecting means for detecting a moving speed of the apparatus main body, wherein the apparatus main body comprises: Determining means for determining whether or not the apparatus is located within a predetermined area within the movable range; fixing means for fixing the apparatus main body; and a detection result of the detection means and a determination result of the determination means based on the determination result. An ophthalmologic apparatus comprising: control means for controlling the operation of the fixing means. 6. The control means, wherein the moving speed of the apparatus main body detected by the detecting means is equal to or higher than a reference moving speed set in advance, and the judging means determines that the apparatus main body is within the movable range. The ophthalmologic apparatus according to claim 5, wherein when it is determined that the apparatus is located outside the predetermined area, the operation of the fixing unit is controlled to fix the apparatus main body. 7. An ophthalmologic apparatus comprising: a movably provided gantry; and an optometric unit movably provided on the gantry, wherein: a detecting means for detecting a moving speed of the gantry; An ophthalmologic apparatus comprising: moving means for moving; and control means for controlling an operation of the moving means based on a detection result of the detecting means. 8. When the moving speed of the gantry detected by the detecting device is higher than or equal to a preset reference moving speed, the control device controls the operation of the moving device to control the optometric unit. The ophthalmologic apparatus according to claim 7, wherein the apparatus is moved in a direction away from the subject's eye. 9. An ophthalmologic apparatus having a gantry movably provided and capable of automatic alignment, determining means for determining whether the automatic alignment is possible, fixing means for fixing the gantry, and determining means Control means for controlling the operation of the fixing means based on the result of the determination. 10. When the determining means determines that automatic alignment is possible, the automatic alignment is performed after the control means controls the operation of the fixing means to fix the gantry. The ophthalmologic apparatus according to claim 9, wherein: