JP2017176628A - Ophthalmologic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suitably perform an initialization operation.SOLUTION: An ophthalmologic apparatus comprises: a movement mechanism comprising a drive unit for moving a movable unit to adjust a relative position between an apparatus body for examining a subject's eye and the subject's eye; drive control means for driving the drive unit according to an operation signal from an operation member operated by an examiner in order to move the movable unit with respect to the subject's eye; and initialization setting means for allowing the examiner to set in advance whether or not to activate an initialization operation for moving the movable unit to an initial position. The drive control means controls the drive unit when setting is made in advance so that the initialization operation is activated by the initialization setting means, and moves the movable unit to the initial position.SELECTED DRAWING: Figure 4

Description

  The present disclosure relates to an ophthalmologic apparatus for examining a subject's eye.

    In the ophthalmologic apparatus, the apparatus main body or the chin rest is moved in order to align the subject's eye with the apparatus. For example, a slit lamp microscope called a slit lamp generally has a mechanical vertical movement mechanism (see, for example, Patent Document 1). In recent years, an electric moving mechanism has been proposed (see, for example, Patent Document 2).

JP 2001-83429 A Japanese Patent Laying-Open No. 2014-12034

    By the way, in the ophthalmic apparatus of Patent Document 2, it is described that the height of the movable portion is adjusted to the initial state when the power is turned on or using a dedicated switch. However, in the case of initialization at power-on, an examiner who is accustomed to the conventional mechanical movement mechanism may want to follow the same operational feeling as the conventional one, and may not like the initialization operation. On the other hand, when initialization is performed according to an operation signal from a dedicated switch, the examiner needs to operate the switch every time initialization is troublesome.

  In view of the above problems, it is an object of the present disclosure to provide an ophthalmologic apparatus that can suitably perform an initialization operation.

  In order to solve the above problems, the present disclosure is characterized by having the following configuration.

A moving mechanism including a drive unit that moves the movable unit to adjust the relative position between the apparatus main body for examining the subject's eye and the subject's eye;
Drive control means for driving the drive unit in response to an operation signal from an operation member operated by an examiner to move the movable unit relative to the subject's eye;
An initialization setting means for the inspector to set in advance whether or not to operate an initialization operation for moving the movable part to an initial position;
With
The drive control unit controls the drive unit to move the movable unit to an initial position when preset by the initialization setting unit to activate the initialization operation.

<Overview>
Hereinafter, an outline of the ophthalmologic apparatus according to the present embodiment will be described. The ophthalmologic apparatus according to the present embodiment includes a moving mechanism including a driving unit that moves the movable unit in order to adjust the relative position between the apparatus main body and the subject's eye, and a control unit that controls driving of the driving unit. You may prepare.

  The apparatus main body may include, for example, an optical system for examining the subject's eye, and more specifically, an optical system for observing or photographing the subject's eye.

The movable part may be, for example, a movable part on which the apparatus main body is mounted. That is, the moving mechanism may be a moving mechanism including a drive unit for moving the apparatus main body with respect to the eyes.
In this case, as a moving mechanism for moving the apparatus main body, for example, a mechanism using a hollow motor may be used. Of course, it is not limited to this, A well-known moving mechanism provided with a drive part may be used.

  The movable part may be, for example, a movable part on which a chin rest is mounted. That is, the moving mechanism may be a moving mechanism including a drive unit for moving the eyes with respect to the apparatus main body. In this case, as a moving mechanism for moving the chin rest, a known moving mechanism including a drive unit may be used. In this case, the structure is not limited to the chin rest moving mechanism, and may be configured to move the forehead rest or the like.

  The control unit may drive the drive unit according to an operation signal from an operation member operated by the examiner to move the movable unit relative to the subject's eye. The operation member may be, for example, a user interface such as a joystick, a trackball, a touch panel, or a switch mechanism.

  As an operation member, you may provide the sensor which detects operation by an examiner. The control unit may drive the drive unit according to an operation signal from the sensor. Examples of the sensor include a sensor for detecting a rotation operation of a rotary knob of a joystick, a sensor for detecting a tilting operation of an electric joystick, a sensor for detecting a rotation operation of a trackball, and a pressure sensor. Good. The moving mechanism may include a motor.

  The moving mechanism may be a moving mechanism that moves the movable part to at least one of up, down, left, and right and front and rear by motor driving.

  More specifically, the ophthalmologic apparatus according to the present embodiment includes a vertical movement mechanism including a drive unit that moves the movable unit up and down, a vertical operation member that is operated by the examiner to move the movable unit up and down, and a vertical operation. A detection unit that detects an operation signal of the member. In this case, the control unit may convert the operation signal detected by the detection unit into a drive signal for moving the movable unit up and down, and drive the drive unit based on the drive signal.

  The ophthalmologic apparatus according to the present embodiment may include an optical system for observing or photographing the subject's eye, and may be, for example, a slit lamp. Further, the ophthalmologic apparatus may be, for example, a fundus imaging apparatus (for example, a fundus camera, an optical coherence tomograph). Of course, the present embodiment is not limited to this, and the present embodiment can be applied to any apparatus provided with an optical system for inspecting a subject's eye.

<Initialization operation>
In the present embodiment, an initialization setting unit may be provided for the examiner to preset whether or not to perform the initialization operation. The initialization setting unit may be a control unit (processor) of the ophthalmologic apparatus, may be the same as the control unit that controls driving of the driving unit, or may be another control unit.

  When the initialization operation is set in advance, for example, as the initialization operation, the control unit controls the drive of the drive unit and moves the movable unit to the initial position.

  On the other hand, when presetting not to activate the initialization operation, for example, the control unit does not activate the initialization operation. And a control part may wait for the operation signal from the operation member provided in order to move a movable part. The operation signal from the operation member may be, for example, an operation signal based on a rotation operation of a rotation knob of a joystick, a tilt operation of an electric joystick, a rotation operation of a trackball, a switch operation, or the like.

  Note that the setting content set in advance by the initialization setting unit may be stored in the storage unit, and the control unit determines whether or not to perform the initialization operation based on the setting content stored in advance in the storage unit. May be controlled. In the setting contents of the storage unit, in the case of setting to activate the initialization operation, the initialization operation is performed.

  According to the initialization setting unit described above, whether or not to perform initialization can be set in advance according to the examiner's preference, and it is not necessary to perform a switch operation at every initialization, thus saving the examiner's trouble. Can do.

  More specifically, when the initialization operation is set to be activated, for example, when a plurality of examiners handle the same device, the movable part can be uniformly arranged at the initial position. Individual differences (for example, differences in inspection position due to differences in sitting height, etc.) can be averaged, and a plurality of examiners can perform a relatively smooth inspection. Moreover, individual differences (for example, differences in inspection positions due to differences in sitting height, etc.) among the subjects can be averaged, and a relatively smooth inspection can be performed.

  On the other hand, if it is not set to activate the initialization operation, the examiner who is used to the conventional mechanical movement mechanism can follow the same operation feeling as before and can perform a smooth examination for the examiner. . The initialization setting unit is particularly advantageous in a slit lamp in which a mechanical moving mechanism is common.

  As a timing for performing the initialization operation, for example, the control unit may perform the initialization operation when power is turned on or power is erased. Here, when preset to operate the initialization operation, the control unit may control the drive unit when the power is turned on or off, and move the movable unit to the initial position. Note that the time of power-on or power-off may be, for example, the time of power-on, or may be within a predetermined time (for example, within a few seconds) after power-on.

  For example, the apparatus is provided with a power switch for turning on / off the power of the apparatus body, and the control unit controls the power of the apparatus based on a switch signal from the power switch and performs an initialization operation. You may make it perform. The power switch may be an operation member operated by an examiner. The power switch may be provided on a table on which the ophthalmic apparatus is placed, and a switch signal may be input to the control unit in conjunction with the movement of the ophthalmic apparatus on the table. The power supply unit including the power switch may be configured to be disposed at a position different from the ophthalmic apparatus and electrically connected to the ophthalmic apparatus, or may be mounted on the apparatus body of the ophthalmic apparatus. Note that the control unit is not limited to the power switch, and the control unit may perform an initialization operation at a timing when another operation member is operated.

  As the initialization operation, the control unit may move the movable unit to a preset initial position. The initial position may be, for example, an intermediate position in the movable range of the movable part or a limit position, but is not limited thereto. Note that the initial position may be arbitrarily set in advance.

  As a specific configuration of the initialization operation, a position detection sensor for detecting the position of the movable part may be used. For example, a position detection sensor (for example, an encoder or a potentiometer) that can detect the position of the movable unit in real time may be provided, and the movable unit may be moved to the initial position stored in the storage unit. In addition, a position detection sensor (for example, a photo sensor) for detecting that the movable part has reached the position corresponding to the initial position is provided, and the movable part is stopped when the movable part reaches the initial position. Also good.

  The initialization setting unit may allow the examiner to set in advance whether or not to activate the initialization operation based on an operation signal from an operation member operated by the examiner. Here, the initialization setting unit may be electrically connected to the operation member and receive an operation signal from the operation member.

  For example, the initialization setting unit may receive an operation signal from an examiner for setting whether or not to activate the initialization operation and change the setting content. For example, the initialization setting unit may perform mode setting between a first mode in which the initialization operation is performed and a second mode in which the initialization operation is not performed.

  As an operation member for performing the setting of the initialization operation in advance, an operation member provided for a use different from the setting of the initialization operation may be used. In other words, the operation member used for setting the initialization operation may also be used as the operation member used in the inspection. According to the above configuration, the device configuration can be simplified. For example, it is particularly advantageous in a slit lamp with a small electrical configuration. Of course, a dedicated switch may be provided as an operation member for setting the initialization operation in advance.

  For example, the initialization setting unit may accept an operation signal from an inspection start switch that generates a trigger for starting an inspection by the apparatus main body, and may set an initialization operation in advance. The inspection start switch may be, for example, a photographing start switch (for example, a release switch) for generating a photographing start trigger signal by a photographing optical system provided in the apparatus main body.

  Note that the above-described examination start switch may be provided on any one of the operation members (for example, joystick) operated by the examiner to move the movable unit with respect to the eye to be examined (for example, the top or the side). It may be provided at any position of the apparatus housing. The operation member used in the inspection is not limited to the inspection start switch. For example, the operation member may be a switch for turning on the illumination light source or a switch for turning on / off the power of the apparatus. .

  An initialization setting mode may be provided for the examiner to set in advance whether or not to perform the initialization operation. For example, the control unit may determine whether or not to shift to the initialization setting mode based on a signal from the instruction receiving unit when the power is turned on. More specifically, it may be determined whether or not to shift to the initialization setting mode according to the presence or absence of an operation signal from the operation member at the time of power-on. In this case, the presence / absence of the operation signal may be, for example, ON / OFF of the switch when the power is turned on, or the ON time of the switch. More specifically, when the operation switch as the operation member is pressed and held for a predetermined time or longer, the operation mode is shifted to the initialization setting mode, and when the switch is pressed for a time shorter than the predetermined time, An operation corresponding to the application may be performed. According to the long press operation, it is easy to distinguish from a normal switch operation, and it is easy to avoid an erroneous operation.

  In the initialization setting mode, whether or not to activate the initialization operation may be switched according to the operation of the switch. Further, whether or not to perform the initialization operation may be set according to the number of switch operations or the operation time within a predetermined time.

  Note that an initialization setting mode is provided when the power is turned on, so that normal apparatus operation and initialization setting operation can be separated. Therefore, it is possible to avoid an erroneous operation in normal apparatus operation. Even if the initialization setting mode is not when the power is turned on, there is a certain effect that the presence / absence of the initialization setting can be set.

  In the above description, the examiner can set in advance whether or not the initialization operation is activated according to the operation signal from the operation member, but the configuration is not limited thereto. That is, the present embodiment can be applied even when setting different from the initialization operation is performed. Also, the initialization operation setting and other settings different from the initialization operation (for example, whether to generate a buzzer sound when the limit is reached, whether to automatically adjust the illumination light amount when the filter is inserted into the optical path) It is also possible to enable both of the setting and the like. For example, a plurality of settings may be possible based on operation signals from the same operation member, and the apparatus configuration can be simplified.

<Notification part>
In the ophthalmologic apparatus according to the present embodiment, a notification unit that notifies the setting result by the initialization setting unit may be provided. The notification unit may notify the switching between the first mode in which the initialization operation is performed and the second mode in which the initialization operation is not performed. Further, the notification unit may perform notification corresponding to the switched mode content.

  The notification unit may include a sound generation unit, and the control unit may control the sound generation unit and notify the setting content by sound. In this case, a sound may be emitted when the setting content is switched in the initialization setting mode. According to this, an alerting | reporting part can be simplified.

  In addition, the notification unit may include a visible light source, and the control unit may control the visible light source and notify the setting content by controlling the light source (for example, ON / OFF of the light source).

  By providing the notification unit as described above, the examiner can easily confirm the setting contents, switching of settings, and the like even in a device having no display. In particular, the slit lamp generally does not have a display and is directly observed by a microscope unit. According to the notification unit as described above, the setting content can be notified to the examiner with a simple configuration.

<Example>
Hereinafter, examples according to the present embodiment will be described with reference to the drawings. Here, a slit lamp will be described as an example of the ophthalmologic apparatus. FIG. 1 is an external view showing an example of a slit lamp. FIG. 2 is a diagram illustrating an example of an optical system and a control system of a slit lamp. FIG. 3 is a cross-sectional view of the slit lamp of FIG. 1 as viewed by cutting along the axis AA.

  The slit lamp 100 is roughly divided into a face support unit 100a and a main body 100b. The face support unit 100a provided on the subject side has a forehead support 11 for supporting the subject's forehead and a chin rest 12 for supporting the chin, and is fixed to the base 21 via two columns 13. ing. The main body 100b has a movable part 200b whose height in the vertical direction is adjusted with respect to the table 1, and a fixed part 200a that supports the movable part 200b.

  A control unit 85 that controls the operation of the illumination unit 60, the microscope unit (observation / photographing unit) 70, and the slit lamp 100 as a whole is provided in the casing of the movable unit 200b. A vertical movement mechanism 200 for moving the movable part 200b up and down with respect to the subject's eye E is provided in the housing of the fixed part 200b.

  The illumination unit 60 includes a visible light source (illumination light source) 61, a condenser lens 62, a variable aperture 63, a variable slit 64, a projection lens 65, and a prism mirror 66, and illuminates the observation site of the subject eye E. The luminous flux (visible light) from the visible light source 61 passes through the condenser lens 62 and illuminates the variable aperture 63 and the variable slit 64. The light beam that has passed through the aperture 63 and the slit 64 passes through the projection lens 65, is reflected by the prism mirror 66, and is projected onto the eye E. As the visible light source 61, a known lamp such as a halogen lamp or LED is used.

  The microscope unit 70 includes an objective lens 71, a variable magnification optical system 72, a half mirror 73, an imaging lens 74, an erecting prism 75, a field stop 76, and an eyepiece lens 77. The light beam reflected by the subject's eye E passes through the objective lens 71, the variable magnification optical system 72, the half mirror 73, and the imaging lens 74, and is reflected by the erecting prism 75. The light beam reflected by the prism 75 passes through the field stop 76 and the eyepiece lens 77 and enters the eye F of the examiner. The light beam reflected by the half mirror 73 passes through the relay lens 78 and enters the camera (imaging device) 80. As the camera 80, a known digital camera equipped with a CCD having sensitivity to visible light is used. The control unit 85 captures a captured image of the camera 80 based on a command signal from a switch 22b described later, and displays the captured image on the monitor 87.

  The vertical movement mechanism 200 is installed in the case 21a, a base 21 fixed to the table 1, a case 21a slidable in the horizontal direction (front / rear / left / right direction) with respect to the base 21, and one of the cases. A joystick 22 that is an operation member that appears on the outside through an opening of the casing 21a that is not shown, and a drive unit 50 that is installed in the casing 21a.

  The joystick 22 is inserted into the rotary knob (rotating unit) 22a that is held and rotated by the examiner, a switch 22b that inputs a trigger signal for photographing (image acquisition), and the joystick 22 in a substantially vertical direction (Y direction). And a known rotary encoder 22d for detecting the rotation angle of the rotary knob 22a.

  The drive unit 50 includes a hollow brushless motor (hereinafter referred to as a motor) 51 that is provided to be rotatable about the rotation axis L1. For details of the vertical movement mechanism 200 of this embodiment, refer to Japanese Patent Application Laid-Open No. 2014-1304.

  The movable part 200 b includes a base shaft 23 that extends substantially perpendicular to the base 21, an arm 24 that supports the illumination unit 60, and an arm 25 that supports the microscope unit 70. The arms 24 and 25 are supported so as to be individually rotatable in the horizontal direction around the central axis B, whereby the illumination unit 60 and the microscope unit 70 are individually rotated around the central axis B. .

  Further, in the present embodiment, the main body 100a is provided with a position detector for detecting the vertical position of the movable part 200b with respect to the fixed part 200a. For example, the position detection unit includes three sensors having a plate part 54 that is fixed on the movable part 200b side and moved up and down in conjunction with the movable part 200b, and an opening that is fixed on the fixed part 200a side and through which the plate part 54 passes. 55a-55c.

  When the movable portion 200b is moved up and down and the plate portion 54 is detected by all three sensors 55a to 55c, the control portion 85 detects that the movable portion 200b is at the lower limit. When the plate portion 54 is detected only by the sensor 55a, it is detected that the movable portion 200b is at the upper limit. Further, in the present embodiment, when the plate portion 54 is detected by the sensors 55a and 55b and not detected by the sensor 55c, the main body portion 100a is assumed to be at an intermediate position (position of an eye level marker not shown) in the movable range.

  When the initialization operation is performed, the movable portion 200b is moved up and down by driving the motor 51 until the plate portion 54 is detected by the sensors 55a and 55b, and the initial position is automatically adjusted easily. As the sensor, a known sensor such as an optical sensor such as a photo interrupter, a magnetic sensor, or a mechanical sensor is used.

  With the above configuration, when the joystick 22 is slid in the horizontal direction (front / rear / left / right direction) by the examiner's operation, the main body 100b moves in the horizontal direction with respect to the subject's eye E by a known slide mechanism. On the other hand, when the rotation knob 22a is rotated in the horizontal direction around the shaft 22b, the rotation direction, rotation speed, and the like are detected by the encoder 22d. The controller 85 controls the rotation of the motor 51 based on the output signal from the encoder 22d. When the motor 51 is rotated by the drive control of the control unit 85, the male screw 52 is moved up and down along the female screw 51b formed in the hollow portion 51a, and the entire movable unit 200b is moved up and down.

  The control unit 85 controls the drive of the entire apparatus. The control unit 85 includes the rotation knob 22a, the switch 22b, the encoder 22d, the sensors 55a to 55c, the motor 51, the sensor 56, and the monitor 87, the memory 81, the light amount adjustment knob 300, the power switch 400, the sound generation unit 500, Etc. are connected. The memory 81 stores the relationship between the rotation pulse (rotation amount) of the motor 51 and the rotation pulse (rotation amount) of the joystick 22 (rotation knob 22a) detected by the encoder 22d. The memory 81 stores the rotation direction of the joystick 22 detected by the encoder 22d and the rotation direction of the motor 51 in association with each other. The controller 85 may control the rotation amount and rotation direction of the motor 51 based on the input signal from the joystick 22. The memory 81 may store setting contents related to the initialization operation.

  The light amount adjustment knob 300 is a rotary knob for adjusting the light amount of the visible light source 61. When the light amount adjustment knob 300 is operated, the control unit 85 may adjust the light amount of the visible light source 61. The light amount adjustment knob 300 may also serve as an ON / OFF switch for the visible light source 61. The power switch 400 may be an ON / OFF switch for the power of the apparatus, and the control unit 85 may turn the power on / off based on a signal from the power switch 400. Moreover, the sound generation unit 500 may be used as a sound notification unit.

  FIG. 4 is a flowchart illustrating an example of the operation of the ophthalmologic apparatus according to the present embodiment. When the power switch 400 is operated and the power is turned on to the apparatus, the control unit 85 determines whether to set various modes according to an operation signal from the operation switch (for example, the switch 22b). . When the operation switch ON continues for a predetermined time (for example, 5 seconds) or longer, the control unit 85 shifts to various mode settings (described later).

  If the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or longer, an operation corresponding to the mode set in the vertical movement initial setting mode (described later) is performed. Here, when the first mode in which the initialization operation is performed when the power is turned on is set, the control unit 85 moves the main body 100b up and down by driving the motor 51, and the movable unit 200b based on the detection result of the position detection unit. Adjust the height of to the initial position. Thereafter, the control unit 85 does not perform the initialization operation and waits for an operation signal from the sensor 56.

  On the other hand, when the second mode in which the initialization operation is not performed when the power is turned on is set, the control unit 85 waits for the operation signal from the sensor 56 without performing the initialization operation. In this case, as a result, when the power is turned on, the main body 100b is disposed at the position at the time of the previous power erase.

  Next, the examiner fixes the face of the subject to the face support unit 100a and aligns the eye E with the main body 100b. By the horizontal movement of the joystick 22, the front-rear and left-right alignment of the eye E and the main body 100b is performed. Next, the height of the main body 100b (the illumination unit 60 and the microscope unit 70) is adjusted with respect to the eye E. When the examiner rotates the rotation knob 22 a of the joystick 22, the rotation amount, rotation speed, and rotation direction are detected by a known encoder 22 d, and the detection result is output to the control unit 85. The control unit 85 drives the motor 51 based on the detection result of the encoder 22d.

  When the alignment between the eye E and the main body 100b is completed, the examiner operates the light amount adjustment knob 300 to turn on the visible light source 61 and adjust the light amount of the visible light source 61. Here, the control unit 85 turns on the visible light source 61 of the illumination unit 60 and projects illumination light (light beam) to the subject's eye E. As a result, the eye E is observed through the microscope unit 70. The examiner rotates the rotary knob 22a as necessary while observing the eye E, and performs fine alignment of the moving unit 200b (the illumination unit 60 and the microscope unit 70). Here, when the switch 22 b is operated by the examiner, the control unit 85 captures an image captured by the camera 80 and displays the captured image on the external monitor 87.

  Here, since the slit lamp needs to be finely adjusted with respect to the eye, it is possible to control according to the needs of the examiner by providing a configuration that can set whether or not to perform the initialization operation. It becomes. In addition, the slit lamp tends to be frequently turned on and off as compared with other devices, and it can be said that there is a great merit by providing a configuration capable of selecting whether or not to perform the initialization operation.

  In addition, when the slit lamp is placed on the table, the present embodiment can be applied even when the power is turned on / off in conjunction with the sliding of the slit lamp on the table. In this case, a sensor for detecting the position of the slit lamp on the table may be used.

<Vertical movement initial setting mode>
Here, when the operation switch ON continues for a predetermined time (for example, 5 seconds) or longer, the control unit 85 causes the sound generation unit 500 to generate a buzzer. When the operation switch is turned off after the buzzer is generated, the control unit 85 shifts to the vertical movement initial setting mode.

  When the operation switch is pressed once in the vertical movement initial setting mode, the control unit 85 sets the first mode in which the initialization operation is performed when the power is turned on, and sounds the buzzer once. As a result, the examiner is notified that the first mode has been set. Further, when the operation switch is pressed once, the control unit 85 sets the second mode in which the initialization operation is not performed when the power is turned on, and sounds the buzzer twice continuously. Thus, the examiner is notified that the second mode has been set. Further, when the operation switch is pressed once, the control unit 85 sets the first mode and sounds the buzzer once.

  That is, the control unit 85 may perform mode switching between the first mode and the second mode in accordance with the operation signal of the operation switch. Moreover, the control part 85 may alert | report the set mode using a buzzer. In this case, the examiner can easily confirm the set mode by using different voices according to the set mode. In addition, as a different audio | voice, the frequency | count of a buzzer may be sufficient as mentioned above, for example, the kind of sound (for example, a high tone, a low tone), and the magnitude of a sound may be sufficient.

  After the mode setting is performed in the vertical movement initial setting mode, when the power switch 400 is operated and the power supply is erased, the vertical movement initial setting mode is ended. Here, when the power is turned on again and the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or longer, the control unit 85 performs an operation corresponding to the set mode.

  In addition, by enabling mode setting based on the operation of the operation member when the power is turned on as described above, the operation switch can be used for other purposes after the mode setting is completed, and an erroneous operation can be reliably performed. Can be avoided.

  Note that the voice mode notification is particularly useful in slit lamps whose electrical configuration is limited to illumination light sources, photographing cameras, and the like. A monitor can also be used for the slit lamp, but it is only connected to the photographing camera, and only the image captured by the photographing camera is displayed. In addition, there may be a case where the photographing camera is not attached to the slit lamp. The mode notification by voice does not need to complicate the configuration of an electrically simple slit lamp, and can be done with a simple configuration.

<Other setting modes>
If the operation switch ON continues for a predetermined time (for example, 5 seconds) after the power is turned on and a buzzer is generated, and further, the operation switch ON continues for a predetermined time (for example, 5 seconds) or more, the control unit 85 May issue a buzzer and shift to a second setting mode different from the vertical movement initial setting mode.

  The second setting mode may be, for example, a buzzer setting mode for setting a buzzer sound when the main body 100b reaches the limit position for vertical movement. In the buzzer setting mode, for example, the control unit 85 is between a first mode in which a buzzer sound is generated by the sound generation unit 500 when the limit is reached and a second mode in which no buzzer sound is generated when the limit is reached. The mode switching may be performed according to the operation signal of the operation switch. In this case, it may be possible to additionally set the magnitude of the buzzer sound.

  After the mode setting is performed in the second setting mode, when the power switch 400 is operated and the power supply is erased, the second setting mode is ended. Here, when the power is turned on again and the operation switch ON does not continue for a predetermined time (for example, 5 seconds) or longer, the control unit 85 performs an operation corresponding to the mode set in the second setting mode.

  As described above, it is possible to shift to the second setting mode different from the setting mode (for example, the vertical movement initial setting mode) for setting whether or not to perform the initialization operation through the operation by the same operation switch. Thus, a plurality of mode settings can be performed with a simple configuration.

  In addition, by providing a buzzer setting mode, it is possible to set the presence / absence or magnitude of a buzzer sound when the limit is reached. Thereby, for example, it is possible to meet the needs of both the examiner who wants to utilize the buzzer sound and the examiner who feels the buzzer sound troublesome.

It is an external view which shows an example of the slit lamp which concerns on a present Example. It is a figure which shows an example of the optical system and control system of the slit lamp concerning a present Example. It is sectional drawing when the slit lamp of FIG. 1 is cut | disconnected by axis | shaft AA. It is a flowchart which shows an example regarding operation | movement of the ophthalmologic apparatus which concerns on a present Example.

85 Control unit 200 Vertical movement mechanism 200b Movable unit 500 Sound generation unit

Claims (8)

A moving mechanism including a drive unit that moves the movable unit to adjust the relative position between the apparatus main body for examining the subject's eye and the subject's eye;
Drive control means for driving the drive unit in response to an operation signal from an operation member operated by an examiner to move the movable unit relative to the subject's eye;
An initialization setting means for the inspector to set in advance whether or not to operate an initialization operation for moving the movable part to an initial position;
With
The ophthalmic apparatus, wherein the drive control unit controls the drive unit and moves the movable unit to an initial position when the initialization setting unit is set in advance to operate an initialization operation.   The drive control unit controls the drive unit when the power is turned on or off, and moves the movable unit to an initial position when the initialization setting unit is preset to activate the initialization operation. The ophthalmic apparatus according to claim 1.   The ophthalmologic apparatus according to claim 1, further comprising a notifying unit that notifies a setting result by the initialization setting unit.   4. The ophthalmologic apparatus according to claim 3, wherein the notification means emits a sound when the setting content is switched by the initialization setting means.   5. The initialization setting unit can set in advance whether or not to activate the initialization operation based on an operation signal from an operation member operated by an examiner. Any ophthalmic device.   The initialization setting means can preset whether or not to activate the initialization operation based on an operation signal from an inspection start switch that generates a trigger for starting an inspection by the apparatus main body. The ophthalmologic apparatus according to claim 1.   The ophthalmic apparatus according to claim 1, wherein the ophthalmic apparatus is a slit lamp. The ophthalmic apparatus according to any one of claims 1 to 7, wherein the movable part is a movable part on which an apparatus main body or a chin rest is mounted.