JP6896048B2 - Ophthalmic equipment - Google Patents

Description

The present invention relates to an ophthalmic apparatus.

Various devices are used in the field of ophthalmology. For example, a device (imaging device) for acquiring an image of the eye to be inspected, a device for inspecting the eye to be inspected (inspection device), and the like are used. Examples of the imaging device include an optical coherence tomography (OCT) device, a fundus camera, a slit lamp, and a scanning laser ophthalmoscope (SLO). The inspection device includes a reflex meter, a keratometer, a tonometer, a perimeter, and the like. In addition, a multifunction device made by combining two or more devices is also used.

In some ophthalmic devices, a light source for illuminating the anterior segment of the eye to be inspected (cornea or the like) is provided at a position outside the main optical path for imaging or examination. In addition, there are various ophthalmic devices to which an attachment for arbitrarily applying a predetermined function can be attached. As a typical attachment, there is an attachment including an optical system arranged between an optical system for photographing or inspection and an eye to be inspected.

Japanese Unexamined Patent Publication No. 2013-212314

However, in the conventional ophthalmic apparatus, the imaging mode is switched according to the attachment state and type of the attachment, and a predetermined imaging function corresponding to the attachment is realized. Therefore, when shooting is performed in a shooting mode that does not correspond to the attachment state or type, the desired shooting cannot be performed, and it is necessary to redo the shooting.

An object of the present invention is to provide a technique for preventing a situation in which an eye to be inspected is photographed in an erroneous photographing mode.

In the ophthalmic apparatus according to the embodiment, the first imaging in which the image to be examined is taken in the first state in which the attachment is not attached and the second imaging in which the image to be examined is taken in the second state in which the attachment is attached It is an ophthalmic apparatus capable of performing the above, and is equipped with an operation unit for designating a first imaging mode for performing the first imaging or a second imaging mode for performing the second imaging, and the attachment. The appropriateness of the correspondence between the mounting determination unit that determines whether or not the optics is used, the shooting mode specified by using the operation unit, and the mounting state of the attachment obtained by the mounting determination unit is determined by the shooting mode and the above. When the correspondence determination unit determines based on the table information indicating the correspondence relationship with the attachment state and the correspondence determination unit determines that the correspondence relationship is not appropriate, at least shooting in the specified shooting mode is performed. The optical system includes a control unit for controlling the prohibition, an optical system for photographing the eye to be inspected, and an focusing operation unit for focusing the optical system on the eye to be inspected. Includes an imaging optical system for photographing the fundus of the eye to be inspected and an interfering optical system for acquiring information about the eye to be inspected by optical coherence stromography, at least in the fundus imaging mode and the anterior segment imaging mode The control unit moves the focusing position of both the photographing optical system and the interfering optical system when the focusing operation unit is operated while the fundus imaging mode is being executed. When the focusing operation unit is operated while the optometry imaging mode is being executed, only the focusing position of the imaging optical system is moved, and when the attachment state of the attachment is changed, The correspondence determination unit redetermines the suitability of the correspondence relationship based on the table information, and the control unit prohibits shooting in the designated shooting mode when it is determined that the correspondence relationship is appropriate. It is an ophthalmic device that releases.
Further, the ophthalmic apparatus according to the embodiment is an ophthalmic apparatus that photographs an eye to be inspected in a state in which two or more attachments corresponding to two or more imaging modes are selectively attached, and is for designating an imaging mode. The suitability of the correspondence between the operation unit, the type identification unit that specifies the type of the attached attachment, the shooting mode specified by the operation unit, and the type of attachment obtained by the type identification unit is determined. When the correspondence determination unit determines based on the table information indicating the correspondence between the shooting mode and the type of the attachment and the correspondence determination unit determines that the correspondence is not appropriate, at least the specified shooting Includes a control unit that controls for prohibiting photography in the mode, an optical system for photographing the eye to be inspected, and a focusing operation unit for focusing the optical system on the eye to be inspected. The optical system includes a photographing optical system for photographing the fundus of the eye to be inspected and an interfering optical system for acquiring information about the eye to be inspected by optical coherence stromography, and includes at least the fundus photography mode and the front. The optometry imaging mode can be executed, and the control unit can combine both the imaging optical system and the interference optical system when the focusing operation unit is operated while the fundus imaging mode is being executed. When the focusing operation unit is operated while the anterior segment imaging mode is being executed by moving the focusing position, only the focusing position of the imaging optical system is moved and the mounting state of the attachment is changed. When this is done, the correspondence determination unit redetermines the suitability of the correspondence relationship based on the table information, and the control unit determines that the correspondence relationship is appropriate when the designated shooting mode is determined. It is an ophthalmic device that lifts the prohibition of photography.

According to the present invention, it is possible to prevent a situation in which the eye to be inspected is photographed in an erroneous photographing mode.

It is the schematic which shows an example of the structure of the ophthalmic apparatus which concerns on embodiment. It is the schematic which shows an example of the structure of the ophthalmic apparatus which concerns on embodiment. It is operation explanatory drawing of the ophthalmic apparatus which concerns on embodiment. It is a flowchart which shows the operation example of the ophthalmic apparatus which concerns on embodiment. It is the schematic for demonstrating the operation of the ophthalmic apparatus which concerns on embodiment. It is operation explanatory drawing of the ophthalmic apparatus which concerns on embodiment. It is a flowchart which shows the operation example of the ophthalmic apparatus which concerns on embodiment.

An example of an embodiment of the ophthalmic apparatus according to the present invention will be described in detail with reference to the drawings. In the following embodiments, as an ophthalmologic device, for example, an OCT image of an eye to be inspected by a Fourier domain type OCT (more specifically, a spectral domain OCT), similar to the device disclosed in Japanese Patent Application Laid-Open No. 2008-73099. An ophthalmic device for acquiring both fundus images will be described as an example. In the following embodiments, it is possible to acquire OCT images of the fundus and anterior segment of the eye to be inspected as OCT images of the eye to be inspected. In addition, the ophthalmic apparatus according to the following embodiment may further have a function of an ophthalmic examination apparatus for inspecting an eye to be inspected.

Further, the case where the photographed image of the eye to be inspected corresponding to the attachment is acquired by switching the photographing mode according to the attached state of the attachment and its type will be described below, but the present invention is not limited to this. In the following, it is assumed that a desired imaging target portion in the eye to be inspected is photographed in an imaging mode corresponding to the attachment state and its type. Attachments include an optical attachment having one or more optical elements arranged on the front side of the objective lens, and a face support (forehead pad, chin support) attachment for arranging the subject's face in a suitable position. In the following embodiment, the former will be mainly described as an example.

[First Embodiment]
[Constitution]
FIG. 1 shows an example of the configuration of the ophthalmic apparatus according to the first embodiment. The ophthalmic apparatus 1 has a function of photographing the eye E to be inspected. In particular, the ophthalmic apparatus 1 has a function of photographing the fundus Ef of the eye to be inspected E and a function of photographing the anterior segment Ea of the eye to be inspected E. The ophthalmic apparatus 1 includes an optical unit 2, a moving mechanism 5, a control unit 7, and a user interface 8. Further, the ophthalmic apparatus 1 may include an attachment 4 that is freely attached to the optical unit 2.

(Optical unit 2)
The optical unit 2 has an optical system 20 for photographing the eye E to be inspected. The optical system 20 includes various optical elements for photographing the eye E to be inspected. Further, the optical unit 2 may include a mechanism for moving or rotating the optical elements constituting the optical system 20. The optical system 20 includes, in particular, an interference optical system 21 and a photographing optical system 22.

The interfering optics 21, like a typical OCT device, includes the following components: light source (low coherence light source, wavelength sweep light source, etc.); the light output from the light source is divided into measurement light and reference light. A fiber coupler that interferes with the return light of the measurement light from the eye E to be examined and the reference light; a means for changing the optical path length of the optical path for OCT measurement (the optical path of the measurement light and / or the reference light); interference. Various optical elements such as a focusing lens for changing the focusing position of the optical system 21; a detection unit (spectrum, balanced photodetector, etc.) that detects interference light generated by a fiber coupler. In this case, the ophthalmic apparatus 1 includes a circuit and / or a processor that forms a cross-sectional image or a three-dimensional image of the eye E (fundus fund Ef, anterior eye portion Ea, etc.) to be inspected based on the detection result of the interference light by the detection unit.

The photographing optical system 22 includes the following components like a general fundus camera: various lenses (focusing lens, imaging lens, focusing lens, relay lens, etc.); optical elements other than the lens (aperture image). A sensor (CCD image sensor, CMOS image sensor, etc.). Further, the photographing optical system 22 may include a light source, which emits infrared light (near infrared light) and / or visible light, for example.

The photographing optical system 22 may be configured to include two or more cameras. For example, two cameras are provided at different positions on the front surface (the surface facing the subject) of the optical unit 2. Then, the anterior segment Ea is photographed from different directions using two cameras. That is, the two cameras perform stereo imaging of the anterior segment Ea. The ophthalmic apparatus 1 can obtain the position information of the anterior segment Ea based on two images acquired substantially simultaneously by the two cameras.

On the other hand, in the configuration example shown in FIG. 1, the optical system 20 is housed inside the optical unit 2. In the optical system 20, the optical path extending from the interference optical system 21 and the optical path extending from the photographing optical system 22 are combined by the beam splitter 23. As the beam splitter 23, for example, a dichroic mirror or a half mirror is applied according to the wavelength band used by the interference optical system 21 and the wavelength band used by the photographing optical system 22. An objective lens 24 is arranged in the optical path OP synthesized by the beam splitter 23.

The attachment 4 can be mounted on the front surface of the optical unit 2. Although FIG. 1 shows a state in which the attachment 4 is attached, the attachment 4 is arranged between the objective lens 24 and the eye E to be inspected. A mounting detection unit 41 is provided at (or near) a portion of the optical unit 2 to which the attachment 4 is mounted. The attachment detection unit 41 detects the attachment of the attachment 4. "Detecting attachment" means, for example, any event related to attachment 4 such as detection of attachment, detection of attachment, detection of removal, detection of removal, and the like. And / or detection of any condition. The attachment detection unit 41 detects the attachment of the attachment 4 in response to a fluctuation in a predetermined physical quantity that occurs in response to the attachment (or removal) of the attachment 4, for example. Examples of this physical quantity include the magnitude and direction of a magnetic field and the magnitude (presence or absence) of pressure. The mounting detection unit 41 has a configuration according to the type of physical quantity to be detected (for example, a magnetic sensor, a pressure sensor, a micro switch, etc.). Further, additional components are provided in the attachment 4 according to the type of physical quantity to be detected (for example, a magnet, a convex portion, a concave portion, etc.).

As the attachment 4, it is possible to apply an anterior segment imaging attachment (optical attachment) for performing OCT of the anterior segment using the interference optical system 21. The attachment 4 includes at least a lens for focusing the measurement light output from the interference optical system 21 on the anterior segment Ea (cornea or the like). That is, this lens acts to focus the measurement light originally focused on the fundus Ef on the anterior segment Ea.

The moving mechanism 5 is a mechanism for moving the optical unit 2. The moving mechanism 5 moves the optical unit 2 at least in the front-rear direction (± z direction), but the movable direction of the optical unit 2 is not limited to this. The movement mode of the optical unit 2 is electric movement and / or manual movement. In the case of electric power, the moving mechanism 5 is provided with an actuator 51. The actuator 51 includes, for example, a pulse motor. The actuator 51 receives control from the control unit 7 to generate a driving force. The moving mechanism 5 includes a mechanism for transmitting the driving force output by the actuator 51 to the optical unit 2. The control unit 7 automatically controls the actuator 51 according to a predetermined computer program, or the control unit 7 controls the actuator 51 based on an operation signal from the operation unit 82 of the user interface 8. In the case of manual operation, the actuator 51 may not be provided. In the manual case, the user uses the operation unit 82 to perform an operation for moving the optical unit 2. The force F1 applied by this operation is transmitted to the moving mechanism 5 via a mechanism (not shown), and is converted into a force F2 for moving the optical unit 2 by the moving mechanism 5.

Further, the interference optical system 21 includes a moving mechanism 21a for moving a first focusing lens (not shown) that changes the focal position of the interference optical system 21 in the optical axis direction. The first focusing lens is composed of one or more lenses. The movement mode of the first focusing lens is electric movement and / or manual movement. In the case of electric power, the moving mechanism 21a is provided with an actuator. Actuators include, for example, pulse motors. The actuator receives control from the control unit 7 to generate a driving force. The moving mechanism 21a includes a mechanism for transmitting the driving force output by the actuator to the first focusing lens. The control unit 7 automatically controls the actuator according to a predetermined computer program, or the control unit 7 controls the actuator based on an operation signal from the operation unit 82 (focusing operation unit 822) of the user interface 8. To do. In the case of manual operation, the actuator may not be provided. In the manual case, the user uses the operation unit 82 (focusing operation unit 822) to perform an operation for moving the first focusing lens. The force F1'applied by this operation is transmitted to the moving mechanism 21a via a mechanism (not shown), and is converted into a force F2'for moving the first focusing lens by the moving mechanism 21a.

Similarly, the photographing optical system 22 includes a moving mechanism 22a for moving a second focusing lens (not shown) that changes the focal position of the photographing optical system 22 in the optical axis direction. The second focusing lens is composed of one or more lenses. The movement mode of the second focusing lens is electric movement and / or manual movement. In the case of electric power, the moving mechanism 22a is provided with an actuator. Actuators include, for example, pulse motors. The actuator receives control from the control unit 7 to generate a driving force. The moving mechanism 22a includes a mechanism for transmitting the driving force output by the actuator to the second focusing lens. The control unit 7 automatically controls the actuator according to a predetermined computer program, or the control unit 7 controls the actuator based on an operation signal from the operation unit 82 (focusing operation unit 822) of the user interface 8. To do. In the case of manual operation, the actuator may not be provided. In the manual case, the user uses the operation unit 82 (focusing operation unit 822) to perform an operation for moving the second focusing lens. The force F1 ″ applied by this operation is transmitted to the moving mechanism 22a via a mechanism (not shown), and is converted into a force F2 ″ for moving the second focusing lens by the moving mechanism 22a.

The control unit 7 includes, for example, a microprocessor, RAM, ROM, a hard disk drive, a programmable logic device, a communication interface, and the like. The control unit 7 performs various controls on the ophthalmic apparatus 1. For example, the control unit 7 executes control of the interference optical system 21, control of the photographing optical system 22, control of the moving mechanism 5 (actuator), control of the information output unit 81, and the like. When the attachment 4 includes a controllable component, the control unit 7 can control the component.

Further, the control unit 7 can execute a function as an image forming unit or an image processing unit. For example, the control unit 7 forms image data of a tomographic image of the eye E to be inspected based on the detection signal of the interference light by the detection unit in the interference optical system 21. For example, this process includes processes such as noise removal (noise reduction), filter processing, and FFT (Fast Fourier Transform), as in the conventional spectral domain type OCT. When another type of OCT is applied, the control unit 7 executes a known process according to the type. Further, the control unit 7 receives an image taken by the photographing optical system 22 and performs predetermined image processing or the like on the image data.

Further, the control unit 7 stores various data. The data stored in the control unit 7 includes, for example, data (inspection data, imaging data) acquired by the interference optical system 21, image data acquired by the imaging optical system 22, subject information, and subject information. There is optometry information. Further, the control unit 7 stores various computer programs and data for operating the ophthalmic apparatus 1.

The user interface 8 includes an information output unit 81 and an operation unit 82. The information output unit 81 includes a display device, an audio output device, a print device, and the like. The information output unit 81 operates under the control of the control unit 7. The operation unit 82 is used by the user to operate the ophthalmic apparatus 1. Further, the operation unit 82 is used to input information to the ophthalmic apparatus 1. Such an operation unit 82 includes an optical system operation unit 821. The optical system operation unit 821 includes a focusing operation unit 822 for focusing the optical system 20 on the eye E to be inspected. The operation unit 82 may include various buttons, keys, and levers provided on the housing of the ophthalmic apparatus 1 or on the outside. The information output unit 81 and the operation unit 82 do not need to be configured as separate devices. For example, it is possible to use a device such as a touch panel in which a display function and an operation function are integrated. The information output unit 81 is an example of the "display means" according to this embodiment.

The operating unit 82 is used by the user to specify the imaging mode performed by the ophthalmic apparatus 1. In this embodiment, the photographing mode includes at least a fundus photographing mode for photographing the fundus Ef of the eye to be inspected E and an anterior eye portion photographing mode for photographing the anterior segment Ea of the eye to be inspected E. The ophthalmic apparatus 1 can take an image of the fundus Ef of the eye E to be inspected by OCT in a state where the attachment 4 is not attached. By attaching the attachment 4 to the ophthalmic apparatus 1, the ophthalmologic apparatus 1 can take an image of the anterior segment Ea of the eye to be inspected E by OCT. That is, the ophthalmic apparatus 1 photographs the anterior segment Ea of the eye E to be inspected in the first state in which the attachment 4 is attached, and photographs the fundus Ef of the eye E in the second state in which the attachment 4 is not attached. It is possible to do.

The optical system operation unit 821 is used by the user to operate the optical system 20. The operation of the optical system 20 includes an operation for changing the focal position of the interfering optical system 21, an operation for changing the optical path length of the optical path for OCT measurement in the interfering optical system 21, and a focal position of the photographing optical system 22. An operation for changing, an operation for switching the light source (wavelength) of the interference optical system 21 or the photographing optical system 22, and an operation for inserting and removing a predetermined optical member from the optical path of the interference optical system 21 or the photographing optical system 22. and so on. The focusing operation unit 822 is used by the user to perform an operation for changing the focal position of the interference optical system 21 or the photographing optical system 22. When the control unit 7 receives a signal input from the optical system operation unit 821, the control unit 7 controls the optical system 20 according to the shooting mode currently being executed.

FIG. 2 shows an example of a functional block diagram of a configuration example of the control unit 7 of FIG. The control unit 7 includes a mounting determination unit 71 and a correspondence determination unit 72.

The mounting determination unit 71 determines whether or not the attachment 4 is mounted on the optical unit 2. As a specific example, the mounting determination unit 71 receives the detection result of the mounting state of the attachment 4 by the mounting detection unit 41, and determines whether or not the attachment 4 is mounted on the optical unit 2 based on the detection result. When the mounting detection unit 41 is not mounted on the optical unit 2, the information output unit 81 inquires the user whether or not the attachment 4 is mounted, and receives the answer as the operation content for the operation unit 82 and mounts the attachment 4. The determination unit 71 may determine whether or not the attachment 4 is attached to the optical unit 2 based on the operation content.

The correspondence determination unit 72 determines the suitability of the correspondence between the shooting mode designated by the operation unit 82 and the attachment state of the attachment 4 obtained by the attachment determination unit 71. Table information indicating the correspondence between the shooting mode designated by the operation unit 82 and the attached state of the attachment 4 is stored in advance in a storage unit (not shown) of the control unit 7 (see FIG. 3). The correspondence determination unit 72 can determine the suitability of the correspondence between the designated shooting mode and the attachment state of the attachment 4 based on the table information stored in advance in the storage unit.

When the photographing mode designated by using the operation unit 82 is the fundus photography mode and the attachment determination unit 71 determines that the attachment 4 is not attached to the optical unit 2, the correspondence determination unit 72 is shown in FIG. Based on the table information, it is determined that the correspondence between the shooting mode and the attached state of the attachment 4 is appropriate. When the photographing mode designated by using the operation unit 82 is the fundus photography mode and the attachment determination unit 71 determines that the attachment 4 is attached to the optical unit 2, the correspondence determination unit 72 is shown in FIG. Based on the table information, it is determined that the correspondence between the shooting mode and the attached state of the attachment 4 is not appropriate.

Further, when the photographing mode designated by using the operation unit 82 is the anterior eye portion photographing mode and the attachment determination unit 71 determines that the attachment 4 is not attached to the optical unit 2, the correspondence determination unit 72 determines that the attachment 4 is not attached to the optical unit 2. Based on the table information shown in FIG. 3, it is determined that the correspondence between the shooting mode and the attached state of the attachment 4 is not appropriate. When the photographing mode designated by using the operation unit 82 is the anterior eye portion photographing mode and the attachment determination unit 71 determines that the attachment 4 is attached to the optical unit 2, the correspondence determination unit 72 is shown in FIG. Based on the table information shown in (1), it is determined that the correspondence between the shooting mode and the attached state of the attachment 4 is appropriate.

When the correspondence determination unit 72 determines that the correspondence between the shooting mode and the mounting state of the attachment 4 is appropriate, the control unit 7 controls at least the optical system 20. The control of the optical system 20 includes control for preparing for shooting in the designated shooting mode such as arrangement control of the optical elements constituting the optical system 20 corresponding to the designated shooting mode, and for starting shooting. Control etc. are included. Controls for preparing for imaging include, for example, control of moving the optical element to a predetermined focusing position of the interference optical system 21 and the imaging optical system 22, and setting the optical path length of the measurement light and / or the reference light to a predetermined length. There are control for setting the light, control of the optical element according to various parameters accepted in relation to the shooting mode, control of switching the applied light source and wavelength, and the like. The control for starting shooting includes a control for displaying a screen for instructing the user to start shooting on the information output unit 81.

When the correspondence determination unit 72 determines that the correspondence between the shooting mode and the attached state of the attachment 4 is not appropriate, the control unit 7 at least controls to prohibit shooting in the designated shooting mode. .. For example, the control for prohibiting shooting includes a display control for displaying the notification information on the information output unit 81. As an example of the notification information, information for notifying an error in the mounting state of the attachment 4 determined by the shooting mode, information for prompting the user to switch the shooting mode, and prompting the user to change the mounting state of the attachment 4. There is information for.

After the correspondence determination unit 72 determines that the correspondence between the shooting mode and the mounting state of the attachment 4 is not appropriate, the correspondence determination unit 72 redetermines the suitability of this correspondence, and the correspondence is correct. If it is determined that there is, the control unit 7 can release the prohibition of shooting in the designated shooting mode. As will be described later, the re-determination timing of the suitability of the correspondence relationship by the correspondence determination unit 72 may be a predetermined time interval, or may be synchronized with the determination timing by the mounting determination unit 71. Further, the re-determination may be executed in response to the user performing a predetermined operation.

As a result, shooting is not performed in the optometry shooting mode when the attachment 4 is not attached, or shooting is performed in the fundus shooting mode when the attachment 4 is attached, and erroneous shooting is performed. It is possible to prevent a situation in which the eye E to be inspected is photographed in the mode.

[motion]
The operation of the ophthalmic apparatus 1 will be described. FIG. 4 shows an example of the operation of the ophthalmic apparatus 1.

(S1)
First, the control unit 7 monitors the user's designation of the shooting mode for the operation unit 82, and receives the shooting mode designated by the user for the operation unit 82.

(S2)
Next, the control unit 7 determines whether or not the attachment 4 is mounted on the optical unit 2 by the mounting determination unit 71.

(S3)
Next, the control unit 7 determines whether or not the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S2 is appropriate according to the table information shown in FIG. 3, for example, by the correspondence determination unit 72. To do. When it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S2 is appropriate (S3: Y), the control by the control unit 7 shifts to S4. On the other hand, when it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S2 is not appropriate (S3: N), the control by the control unit 7 shifts to S9. ..

(S4)
In S3, when it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S2 is appropriate (S3: Y), the control unit 7 is designated in S1. Controls the permission to shoot in the shooting mode. The permission control for shooting includes control of arrangement of optical elements constituting the optical system 20 for shooting in the shooting mode specified in S1. Further, for example, the control unit 7 changes the operation unit 82 for setting various parameters for shooting in the shooting mode specified in S1 so that the user's operation input can be accepted, and the received various parameters. It is also possible to control the optical system 20 according to the above.

In S4, for example, the following control is possible. When shooting in the fundus photography mode is permitted based on the determination result of the correspondence determination unit 72 in S3, the control unit 7 takes the imaging optical system 22 and the interference optical system 21 based on the operation using the focusing operation unit 822. It is possible to move the focusing position of both. On the other hand, when shooting in the anterior segment imaging mode is permitted based on the determination result of the correspondence determination unit 72 in S3, the control unit 7 prohibits the movement of the focusing position of the interference optical system 21 and the alignment is achieved. It is possible to move the focusing position of the photographing optical system 22 based on the operation using the focusing operation unit 822. That is, when the focusing operation unit 822 is operated while the fundus photography mode is being executed, the control unit 7 moves the focusing positions of both the photographing optical system 22 and the interfering optical system 21 to move the front eye unit. When the focusing operation unit 822 is operated while the photographing mode is being executed, it is possible to move only the focusing position of the photographing optical system 22. As described above, in S4, the optical system 20 can be controlled according to the designated shooting mode even if the same operation is performed for the focusing operation unit 822. As a result, the operability of the user can be improved according to the shooting mode.

(S5)
Next, the control unit 7 monitors whether or not the user has given the operation unit 82 a shooting start instruction in the shooting mode specified in S1 (S5: N). When a shooting start instruction is given to the operation unit 82 (S5: Y), the control by the control unit 7 shifts to S6.

(S6)
When a shooting start instruction is given to the operation unit 82 (S5: Y), the control unit 7 determines whether or not the attachment 4 is attached to the optical unit 2 by the attachment determination unit 71, similarly to S2. judge.

(S7)
Next, the control unit 7 corresponds to the shooting mode specified in S1 and the attachment state of the attachment 4 determined in S6 by the correspondence determination unit 72 by the correspondence determination unit 72, for example, according to the table information shown in FIG. Determine the suitability of the relationship. S7 is executed in order to prevent a situation in which the eye E to be inspected is photographed in an erroneous photographing mode even when the attachment state of the attachment 4 is changed after the photographing mode of S1 is specified. When it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S6 is appropriate (S7: Y), the control by the control unit 7 shifts to S8. On the other hand, when it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S6 is not appropriate (S7: N), the control by the control unit 7 shifts to S11. ..

(S8)
The control unit 7 takes a picture of the eye E to be inspected in the shooting mode specified in S1 and in the arrangement of the optical system 20 controlled in S4.

(S9)
In S3, when it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S2 is not appropriate (S3: N), the control unit 7 is designated in S1. Controls the prohibition of shooting in the shooting mode. This shooting prohibition control includes display control for displaying notification information on the information output unit 81. The notification information includes information for prompting the user to change the mounting state of the attachment 4 as described above.

(S10)
When the prohibition control of S9 is within a predetermined number of repetitions (S10: Y), the control by the control unit 7 shifts to S2. As a result, it is possible to release the prohibition of shooting in the shooting mode specified in S1 within a predetermined number of repetitions. On the other hand, when the prohibition control of S9 is not within the predetermined number of repetitions (S10: N), the control by the control unit 7 shifts to S1.

When the prohibition of shooting in the shooting mode specified in S1 is released, it is possible to shift from S10 to S2 when a predetermined time has elapsed. Further, the mounting determination unit 71 can shift from S10 to S2 in synchronization with the determination timing of the new mounting state.

(S11)
In S7, when it is determined that the correspondence between the shooting mode specified in S1 and the mounting state of the attachment 4 determined in S6 is not appropriate (S7: N), the control unit 7 is designated in S1. Controls the prohibition of shooting in the shooting mode. Similar to S9, this shooting prohibition control includes display control for displaying notification information on the information output unit 81.

(S12)
When the prohibition control of S11 is within a predetermined number of repetitions (S12: Y), the control by the control unit 7 shifts to S6. As a result, it is possible to release the prohibition of shooting in the shooting mode specified in S1 within a predetermined number of repetitions. On the other hand, when the prohibition control of S11 is not within a predetermined number of repetitions (S12: N), the control by the control unit 7 shifts to S1.

When the prohibition of shooting in the shooting mode specified in S1 is released, it is possible to shift from S12 to S6 when a predetermined time has elapsed. Further, the mounting determination unit 71 can shift from S12 to S6 in synchronization with the determination timing of the new mounting state.

[effect]
The effect of the ophthalmic apparatus 1 will be described.

The ophthalmologic apparatus 1 has a fundus photography mode (first imaging mode) in which the eye to be inspected E is photographed in the first state in which the attachment 4 is not attached, and an imaging of the eye to be inspected E in the second state in which the attachment 4 is attached. This is a device capable of selectively executing the anterior segment imaging mode (second imaging mode). The ophthalmic apparatus 1 includes an operation unit 82, a wearing determination unit 71, a correspondence determination unit 72, and a control unit 7. The operation unit 82 is used to specify the shooting mode. The attachment determination unit 71 determines whether or not the attachment 4 is attached. The correspondence determination unit 72 determines the suitability of the correspondence between the shooting mode designated by the operation unit 82 and the attachment state of the attachment 4 obtained by the attachment determination unit 71. When the correspondence determination unit 72 determines that the correspondence relationship is not appropriate, the control unit 7 controls at least to prohibit shooting in the designated shooting mode.

According to such a configuration, it is determined before shooting whether or not the specified contents of the shooting mode and the attached state of the attachment properly correspond to each other, and when it is determined that the shooting mode is not appropriate, shooting in the shooting mode is performed. It becomes possible to control the prohibition of. This makes it possible to prevent a situation in which the eye E to be inspected is photographed in an erroneous photographing mode.

Further, after the correspondence determination unit 72 determines that the correspondence is not appropriate, the correspondence determination unit 72 redetermines the suitability of the correspondence, and when it is determined that the correspondence is appropriate, the control unit 7 determines. The prohibition of shooting in the specified shooting mode may be lifted.

According to such a configuration, even if the mounting state of the attachment corresponding to the shooting mode is not appropriate and the control for prohibiting shooting in the shooting mode is performed, the corresponding determination unit 72 determines again. By performing the above, the prohibition after the shooting prohibition control can be released. As a result, even when the user tries to shoot the eye E to be inspected in the wrong shooting mode and the shooting prohibition control is performed, the shooting mode and the attachment state of the attachment 4 can be changed in the desired shooting mode. It becomes possible to take an image of the eye E to be inspected.

Further, the ophthalmic apparatus 1 includes an optical system 20 for photographing the eye to be inspected, and when the correspondence determination unit 72 determines that the correspondence relationship is appropriate, the control unit 7 determines according to the designated imaging mode. The optical system 20 may be controlled.

According to such a configuration, when it is determined that the correspondence is appropriate, control such as preparation for shooting in the shooting mode is performed, and it is possible to provide an ophthalmic apparatus 1 that is easy for the user to use. Become.

Further, the control for prohibiting shooting may include display control for displaying the notification information on the information output unit 81 (display means).

According to such a configuration, it is possible to notify the user in advance of a situation in which the eye E to be inspected is photographed in an erroneous photographing mode.

Further, the attachment 4 is an optical attachment for photographing the anterior segment of the eye, the first imaging mode may be the fundus photography mode, and the second imaging mode may be the anterior segment imaging mode.

According to such a configuration, shooting is performed in the anterior segment imaging mode in a state where the attachment 4 for photographing the anterior segment is not attached, or the attachment 4 for photographing the anterior segment is attached. It is possible to prevent a situation in which the eye E to be inspected is photographed in an erroneous photographing mode without taking a picture in the fundus photography mode in the state of being in the state.

Further, the ophthalmic apparatus 1 includes an optical system 20 for photographing the eye E to be inspected and an optical system operation unit 821 for operating the optical system 20, and the control unit 7 receives a signal from the optical system operation unit 821. When the input of is received, it is possible to control the optical system 20 according to the shooting mode currently being executed.

According to such a configuration, the operation content of the optical system 20 can be changed by the optical system operation unit 821 according to the shooting mode designated by the operation unit 82. As a result, the user can control the optical system 20 according to the shooting mode, and the operability can be improved.

Further, the ophthalmic apparatus 1 can execute at least the fundus imaging mode and the anterior segment imaging mode, and the optical system 20 relates to the imaging optical system for photographing the fundus Ef of the eye to be inspected E and the eye to be inspected E by OCT. The optical system operation unit 821 includes an interfering optical system 21 for acquiring information, the optical system operation unit 821 includes a focusing operation unit 822 for focusing the optical system 20 on the eye E to be inspected, and the control unit 7 takes a picture of the fundus of the eye. When the focusing operation unit 822 is operated while the mode is being executed, the focusing positions of both the photographing optical system 22 and the interfering optical system 21 are moved, and when the anterior segment imaging mode is being executed. When the focusing operation unit 822 is operated, only the focusing position of the photographing optical system 22 may be moved.

According to such a configuration, the optical system 20 can be controlled according to the designated shooting mode even if the same operation is performed for the operation of the optical system operation unit 821. As a result, the operability of the user can be improved according to the shooting mode.

[Second Embodiment]
In the first embodiment, a case where shooting in the shooting mode is prohibited based on the suitability of the correspondence between the designated shooting mode and the attached state of the attachment 4 has been described, but the present invention is not limited to this. .. In the second embodiment, shooting in the shooting mode is prohibited based on the suitability of the correspondence between the designated shooting mode and the type of the attachment 4. Hereinafter, the ophthalmic apparatus according to the second embodiment will be described focusing on the differences from the first embodiment.

Two or more attachments corresponding to two or more imaging modes can be selectively attached to the optical unit of the ophthalmic apparatus according to the second embodiment. For example, the two or more imaging modes include an imaging mode in which not only the fundus and the anterior segment of the eye but also an arbitrary portion of the eye to be inspected such as the vitreous body and the crystalline lens is the imaging target portion. Attachments are also prepared for each part to be imaged, and these are selectively applied to the ophthalmic apparatus.

The configuration of the ophthalmic apparatus according to the second embodiment is different from the configuration of the ophthalmic apparatus 1 according to the first embodiment in that the control unit 7a is applied instead of the control unit 7.

FIG. 5 shows a functional block diagram of a configuration example of the control unit according to the second embodiment. In FIG. 5, the same parts as those in FIG. 2 are designated by the same reference numerals, and the description thereof will be omitted as appropriate. The control unit 7a includes a mounting determination unit 71, a correspondence determination unit 72a, and a type identification unit 73a.

The mounting determination unit 71 determines whether or not the attachment 4 is mounted on the optical unit 2.

The type identification unit 73a specifies the type of the attachment 4 determined to be attached by the attachment determination unit 71. Types of attachment 4 include attachments for anterior segmental imaging, attachments for crystalline lens imaging, and the like. For example, the type specifying unit 73a specifies the type of the attachment 4 based on a predetermined physical quantity generated according to the attachment (or removal) of the attachment 4. When the attachment detection unit 41 detects the attachment state of the attachment 4 by a magnetic sensor, the type identification unit 73a determines the strength of the magnetic force generated in response to the attachment (or removal) of the attachment 4 or its fluctuation (amount, direction). Based on this, it is possible to specify the type of attachment 4. When the attachment detection unit 41 detects the attachment state of the attachment 4 by the pressure sensor, the type identification unit 73a determines the type of the attachment 4 based on the pressure generated in response to the attachment (or removal) of the attachment 4 or its fluctuation. It is possible to identify.

Further, when the attachment detection unit 41 includes a plurality of microswitches and these microswitches are arranged so that the microswitches to be turned on differ depending on the type of the attachment 4 attached, the type identification unit 73a is turned on. The type of attachment 4 can be specified by specifying the microswitch that has become. Further, the type specifying unit 73a may specify the type of attachment based on an image from a camera (for example, a camera that performs stereo shooting) included in the photographing optical system 22.

In this embodiment, when the attachment determination unit 71 determines that the attachment 4 is not attached to the optical unit 2, the type identification unit 73a specifies "no type" as the type of the attachment 4.

The correspondence determination unit 72a determines the suitability of the correspondence between the shooting mode specified by the operation unit 82 and the type of the attachment 4 specified by the type identification unit 73a. Table information indicating the correspondence between the shooting mode designated by the operation unit 82 and the type of the attachment 4 is stored in advance in a storage unit (not shown) of the control unit 7a (see FIG. 6). The correspondence determination unit 72a can determine the suitability of the correspondence between the designated shooting mode and the type of the attachment 4 based on the table information stored in advance in the storage unit.

The photographing mode designated by using the operation unit 82 is the fundus photography mode, and the type of the attachment 4 is specified as "no type" by the type specifying unit 73a (the attachment 4 is attached to the optical unit 2 by the attachment determination unit 71). If it is determined that this is not the case), the correspondence determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is appropriate based on the table information shown in FIG. The photographing mode designated by using the operation unit 82 is the fundus photography mode, and the type of the attachment 4 is specified by the type specifying unit 73a (the attachment determination unit 71 determines that the attachment 4 is attached to the optical unit 2). In that case, the correspondence determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is not appropriate based on the table information shown in FIG.

Further, when the shooting mode designated by using the operation unit 82 is the anterior segment shooting mode and the type of the attachment 4 is specified as "no type" by the type specifying unit 73a, the correspondence determination unit 72a is shown in FIG. Based on the table information shown in (1), it is determined that the correspondence between the shooting mode and the type of attachment 4 is not appropriate. When the photographing mode specified by using the operation unit 82 is the anterior segment imaging mode, and the attachment 4 attached to the optical unit 2 is specified by the type identification unit 73a as the anterior segment imaging attachment, the corresponding case is taken. Based on the table information shown in FIG. 6, the determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is appropriate.

When the correspondence determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is appropriate, the control unit 7a at least controls the optical system 20. Similar to the first embodiment, the control of the optical system 20 is for preparing for shooting in a designated shooting mode such as control of arrangement of optical elements constituting the optical system 20 corresponding to the designated shooting mode. It includes control and control for starting shooting.

When the correspondence determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is not appropriate, the control unit 7a at least controls to prohibit shooting in the designated shooting mode. For example, the control for prohibiting shooting includes a display control for displaying the notification information on the information output unit 81. As an example of the notification information, information for notifying an error of the type of attachment 4 determined by the shooting mode, information for prompting the user to switch the shooting mode, and for prompting the user to change the type of attachment 4. There is information etc.

After the correspondence determination unit 72a determines that the correspondence between the shooting mode and the type of the attachment 4 is not appropriate, the correspondence determination unit 72a redetermines the suitability of this correspondence, and the correspondence is appropriate. If it is determined, the control unit 7a can release the prohibition of shooting in the designated shooting mode. As will be described later, the re-determination timing of the suitability of the correspondence relationship by the correspondence determination unit 72a may be performed when a predetermined time has elapsed, the determination timing by the mounting determination unit 71 or the type identification by the type identification unit 73a. It may be synchronized with the timing.

As a result, for example, in a state where the type of the attachment 4 attached to the optical unit 2 is incorrect, the image is not taken in the anterior segment imaging mode, and the eye E to be inspected is photographed in the incorrect imaging mode or the attachment. Can be prevented.

[motion]
The operation of the ophthalmic apparatus according to this embodiment will be described. FIG. 7 shows an example of the operation of the ophthalmic apparatus according to this embodiment.

(S21)
First, the control unit 7a monitors the user's designation of the shooting mode for the operation unit 82, and receives the shooting mode designated by the user for the operation unit 82.

(S22)
Next, the control unit 7a determines whether or not the attachment 4 is mounted on the optical unit 2 by the mounting determination unit 71. Further, the control unit 7a specifies the type of the attachment 4 determined to be attached to the optical unit 2 by the attachment determination unit 71 by the type identification unit 73a.

(S23)
Next, the control unit 7a determines whether or not the correspondence between the shooting mode specified in S21 and the type of the attachment 4 specified in S22 is appropriate according to the table information shown in FIG. 6, for example, by the correspondence determination unit 72a. .. When it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S22 is appropriate (S23: Y), the control by the control unit 7a shifts to S24. On the other hand, when it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S22 is not appropriate (S23: N), the control by the control unit 7a shifts to S29.

(S24)
When it is determined in S23 that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S22 is appropriate (S23: Y), the control unit 7a shoots the shooting mode specified in S21. Controls permission for shooting in mode. The permission control for shooting includes control of arrangement of optical elements constituting the optical system 20 for shooting in the shooting mode specified in S21. Further, for example, the control unit 7a changes the operation unit 82 for setting various parameters for shooting in the shooting mode specified in S21 so that the user's operation input can be accepted, and the received various parameters. It is also possible to control the optical system 20 according to the above.

In S24, for example, the following control is possible as in S4. When shooting in the fundus photography mode is permitted based on the determination result of the correspondence determination unit 72a in S23, the control unit 7a controls the imaging optical system 22 and the interference optical system 21 based on the operation using the focusing operation unit 822. It is possible to move the focusing position of both. On the other hand, when shooting in the anterior segment imaging mode is permitted based on the determination result of the correspondence determination unit 72a in S23, the control unit 7a prohibits the movement of the focusing position of the interference optical system 21 and the alignment is achieved. It is possible to move the focusing position of the photographing optical system 22 based on the operation using the focusing operation unit 822.

(S25)
Next, the control unit 7a monitors whether or not the user has given the operation unit 82 a shooting start instruction in the shooting mode specified in S21 (S25: N). When a shooting start instruction is given to the operation unit 82 (S25: Y), the control by the control unit 7a shifts to S26.

(S26)
When a shooting start instruction is given to the operation unit 82 (S25: Y), the control unit 7a determines whether or not the attachment 4 is attached to the optical unit 2 by the attachment determination unit 71, similarly to S22. judge. Further, the control unit 7a specifies the type of the attachment 4 determined to be attached to the optical unit 2 by the attachment determination unit 71 by the type identification unit 73a.

(S27)
Next, as in S23, the control unit 7a uses the correspondence determination unit 72a to determine the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S26, for example, according to the table information shown in FIG. Judge the suitability of. Similar to S7, S27 causes a situation in which the eye to be inspected is photographed in the wrong imaging mode even if the type of attachment 4 (including the wearing state) is changed after the imaging mode of S21 is specified. Performed to prevent. When it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S26 is appropriate (S27: Y), the control by the control unit 7a shifts to S28. On the other hand, when it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S26 is not appropriate (S27: N), the control by the control unit 7a shifts to S31.

(S28)
The control unit 7a photographs the eye E to be inspected in the imaging mode specified in S21 and in the arrangement of the optical system 20 controlled in S24.

(S29)
In S23, when it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S22 is not appropriate (S23: N), the control unit 7a is set to S21 as in S9. Controls the prohibition of shooting in the shooting mode specified in.

(S30)
When the prohibition control of S29 is within a predetermined number of repetitions (S30: Y), the control by the control unit 7a shifts to S22. As a result, it is possible to release the prohibition of shooting in the shooting mode specified in S21 within a predetermined number of repetitions. On the other hand, when the prohibition control of S29 is not within the predetermined number of repetitions (S30: N), the control by the control unit 7a shifts to S21.

When the prohibition of shooting in the shooting mode specified in S21 is released, it is possible to shift from S30 to S22 when a predetermined time has elapsed. Further, it is possible to shift from S30 to S22 in synchronization with the determination timing of the new attachment state by the attachment determination unit 71 or the new type identification timing by the type identification unit 73a.

(S31)
In S27, when it is determined that the correspondence between the shooting mode specified in S21 and the type of attachment 4 specified in S26 is not appropriate (S27: N), the control unit 7a is set to S21 as in S11. Controls the prohibition of shooting in the shooting mode specified in.

(S32)
When the prohibition control of S31 is within a predetermined number of repetitions (S32: Y), the control by the control unit 7a shifts to S26. As a result, it is possible to release the prohibition of shooting in the shooting mode specified in S21 within a predetermined number of repetitions. On the other hand, when the prohibition control of S31 is not within the predetermined number of repetitions (S32: N), the control by the control unit 7a shifts to S21.

When the prohibition of shooting in the shooting mode specified in S21 is released, it is possible to shift from S32 to S26 when a predetermined time has elapsed. Further, it is possible to shift from S32 to S26 in synchronization with the determination timing of the new attachment state by the attachment determination unit 71 or the new type identification timing by the type identification unit 73a.

[effect]
The effect of the ophthalmic apparatus according to this embodiment will be described.

The ophthalmic apparatus according to this embodiment takes an image of the eye E to be inspected in a state where two or more attachments corresponding to two or more imaging modes are selectively attached. The ophthalmic apparatus includes an operation unit 82, a type identification unit 73a, a correspondence determination unit 72a, and a control unit 7a. The operation unit 82 is used to specify the shooting mode. The type specifying unit 73a specifies the type of the attached attachment 4. The correspondence determination unit 72a determines the suitability of the correspondence between the shooting mode designated by the operation unit 82 and the type of attachment obtained by the type identification unit 73a. When the correspondence determination unit 72a determines that the correspondence relationship is not appropriate, the control unit 7a controls at least to prohibit shooting in the designated shooting mode.

According to such a configuration, it is determined before shooting whether or not the specified contents of the shooting mode and the type of attachment properly correspond to each other, and when it is determined that the shooting mode is not appropriate, the shooting in the shooting mode is performed. It becomes possible to control the prohibition. This makes it possible to prevent a situation in which the eye E to be inspected is photographed in an erroneous photographing mode.

The configuration described above is only an example for preferably carrying out the present invention. Therefore, any modification (omission, substitution, addition, etc.) within the scope of the gist of the present invention can be appropriately applied.

For example, by switching the analysis mode according to the attached state of the attachment, it is possible to apply any of the above embodiments when performing the analysis processing of the photographed image of the eye to be inspected corresponding to the attachment. An example of switching the analysis mode is switching between the fundus analysis mode and the anterior segment analysis mode. In the fundus analysis mode, for example, the retinal thickness, layer shape, lesion mode (drusen distribution, etc.) and the like are evaluated based on the OCT image and the fundus image. In the anterior segment analysis mode, for example, the corneal thickness, the corneal shape, the angle, and the like are evaluated based on the OCT image and the anterior segment image. Further, for example, by switching the scan mode according to the attached state of the attachment, it is possible to apply any of the above embodiments when acquiring a scanned image of the eye to be inspected corresponding to the attachment. .. As an example of the scan mode, there is a scan pattern of measurement light for acquiring an OCT image.

Further, for example, when the shooting angle of view is switched by switching to the normal angle of view mode, the wide-angle shooting mode, or the like according to the mounting state of the attachment having an optical member for changing the angle of view, any of the above embodiments. It is possible to apply. Further, for example, the refractive power applied to the eye to be inspected is switched by switching to a normal eye photography mode or a (ultra) intensity myopic eye photography mode or the like according to the wearing state of an attachment having an optical member corresponding to the refractive power of the eye to be inspected. In some cases, any of the above embodiments can be applied.

The specification of the shooting mode is not limited to the operation of specifying the shooting mode itself. For example, the disease name and the imaging mode can be associated in advance. Corresponding to the operation of specifying the disease name related to diagnosis (or treatment), the imaging mode associated with the specified disease name can be (automatically) selected. There are also diseases associated with a plurality of imaging modes. In such a case, it is possible to order two or more shooting modes. For example, in diagnosing glaucoma, both the fundus (optic disc, etc.) and the anterior segment of the eye (corneal angle, etc.) may be considered. When the fundus photography mode and the anterior segmental imaging mode are associated with the glaucoma mode, the fundus photography mode is assigned "order 1", and the anterior segmental imaging mode is assigned "order 2", the glaucoma mode is used. When is specified, the fundus photography mode with "order 1" is first selected. In this case, the glaucoma mode designation operation corresponds to the fundus photography mode designation. Further, the end trigger of the fundus photography mode or the start trigger of the anterior segment imaging mode can be regarded as the designation of the anterior segment imaging mode.

1 Ophthalmologic device 2 Optical unit 20 Optical system 21 Interference optical system 21a, 22a, 5 Moving mechanism 22 Imaging optical system 4 Attachment 41 Mounting detection unit 7, 7a Control unit 71 Mounting judgment unit 72, 72a Correspondence judgment unit 73a Type identification unit 81 Information output unit 82 Operation unit 821 Optical system operation unit 822 Focusing operation unit E Eye to be inspected Ea Anterior eye part Ef Fundus

Claims (5)

An ophthalmic device capable of performing a first imaging in which the eye to be inspected is photographed in the first state without the attachment and a second imaging in which the eye to be inspected is photographed in the second state in which the attachment is attached. There,
An operation unit for designating a first shooting mode for performing the first shooting or a second shooting mode for performing the second shooting, and an operation unit.
A mounting determination unit that determines whether or not the attachment is mounted, and
Table information indicating the suitability of the correspondence between the shooting mode specified by the operation unit and the mounting state of the attachment obtained by the mounting determination unit, and the correspondence between the shooting mode and the mounting state of the attachment. Correspondence judgment unit to judge based on
When the correspondence determination unit determines that the correspondence relationship is not appropriate, at least the control unit that controls for prohibiting shooting in the specified shooting mode.
The optical system for photographing the eye to be inspected and
A focusing operation unit for focusing the optical system on the eye to be inspected, and a focusing operation unit.
Including
The optical system is
An imaging optical system for photographing the fundus of the eye to be inspected,
An interference optical system for acquiring information about the eye to be inspected by optical coherence tomography,
Including
At least the fundus imaging mode and the anterior segment imaging mode can be executed,
When the focusing operation unit is operated while the fundus photography mode is being executed, the control unit moves the focusing positions of both the photographing optical system and the interference optical system, and causes the anterior eye unit. When the focusing operation unit is operated while the shooting mode is being executed, only the focusing position of the shooting optical system is moved.
When the mounting state of the attachment is changed, the correspondence determination unit redetermines the suitability of the correspondence relationship based on the table information, and the control unit determines that the correspondence relationship is appropriate. An ophthalmic device that lifts the prohibition of photography in the specified imaging mode. An ophthalmic device that photographs an eye to be inspected with two or more attachments corresponding to two or more imaging modes selectively attached.
The operation unit for specifying the shooting mode and
A type identification part that identifies the type of attachment that is attached,
The suitability of the correspondence between the shooting mode specified by the operation unit and the attachment type obtained by the type identification unit is determined based on the table information showing the correspondence between the shooting mode and the attachment type. Correspondence judgment unit to judge and
When the correspondence determination unit determines that the correspondence relationship is not appropriate, at least the control unit that controls for prohibiting shooting in the specified shooting mode.
The optical system for photographing the eye to be inspected and
A focusing operation unit for focusing the optical system on the eye to be inspected, and a focusing operation unit.
Including
The optical system is
An imaging optical system for photographing the fundus of the eye to be inspected,
An interference optical system for acquiring information about the eye to be inspected by optical coherence tomography,
Including
At least fundus and anterior segmental imaging modes can be performed,
When the focusing operation unit is operated while the fundus photography mode is being executed, the control unit moves the focusing positions of both the photographing optical system and the interference optical system, and causes the anterior eye unit. When the focusing operation unit is operated while the shooting mode is being executed, only the focusing position of the shooting optical system is moved.
When the mounting state of the attachment is changed, the correspondence determination unit redetermines the suitability of the correspondence relationship based on the table information, and the control unit determines that the correspondence relationship is appropriate. An ophthalmic device that lifts the prohibition of photography in the specified imaging mode. If the correspondence relation is determined by the alignment unit to be appropriate, the control unit, according to claim 1 or claim, characterized in that for controlling the optical system in accordance with the designated photographing mode 2. The ophthalmic apparatus according to 2. The ophthalmic apparatus according to any one of claims 1 to 3, wherein the control for prohibiting the imaging includes a display control for displaying the broadcast information on the display means. The attachment is an optical attachment for photographing the anterior segment of the eye.
The first shooting mode is a fundus shooting mode.
The ophthalmic apparatus according to claim 1, wherein the second imaging mode is an anterior segment imaging mode.

Images