JP3461203B2 - Ophthalmic image recording system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmic image recording system for capturing an image of an eye to be examined as an electronic image.

[0002]

2. Description of the Related Art Conventionally, in an ophthalmic photographing apparatus such as a fundus camera, a silver salt film is stored in a detachable film chamber, and a shutter is opened / closed during photographing to photograph an eye image to be examined. Has been done.

On the other hand, recently, as a recording system, a system in which an eye image to be inspected is captured as an electronic image is often adopted, and an ophthalmologic photographing apparatus in which a television camera or a connection adapter for attaching the television camera can be attached to a mounting position of a film chamber is known. There is. Further, as a recording medium for recording an image of an eye to be inspected taken in through a television camera, many things such as a hard disk and a still video are known.

[0004]

However, when performing electronic image recording, the photographer operates and controls various image recording devices for capturing an eye image to be inspected as an electronic image in the ophthalmologic photographing device. It is necessary to equip the ophthalmologic photographing apparatus with a control means for controlling various kinds of image recording apparatuses. Also, multiple types of TV cameras such as color and black and white are required for the TV camera to be used.Therefore, prepare a connection adapter for multiple types of TV cameras according to the purpose, and the photographer can set the shooting light amount etc. for each shooting. Since the imaging device must be installed, the operation becomes complicated and causes an erroneous operation.

Further, in the conventional ophthalmologic imaging apparatus, it is necessary to write various control methods for various kinds of image recording apparatuses in the memory of the ophthalmologic imaging apparatus main body and to control by installing an interface. There is a problem that the price will rise. In addition, there is a case where it is not necessary to capture an electronic image depending on photographing, and in this case, there is a problem that an expensive ophthalmologic photographing apparatus having an unnecessary function is forced to be used.

The object of the present invention is to solve the above-mentioned problems,
Another object of the present invention is to provide an ophthalmic image recording system which is equipped with a communication means in an adapter and which can automatically set photographing conditions and the like.

[0007]

An ophthalmic image recording system according to the present invention for achieving the above object is an ophthalmic image recording system having an adapter capable of optically connecting a photographing optical section and a television camera. , The adapter has a communication circuit section, and the communication circuit section outputs the image picked up by the television camera, and a first communication means that is electrically connected to the image taking optical section to perform communication relating to an image taking condition. It is characterized by comprising a second communication means which is electrically connected to a recordable image recording device and communicates with the image recording device.

[0008]

In the ophthalmic image recording system having the above structure, the photographing optical section and the television camera are optically connected by the adapter, and the first communication means of the adapter exchanges information such as the photographing condition with the photographing optical section. Then, the second communication means communicates with the image recording apparatus.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiments. FIG. 1 shows a configuration diagram of the present embodiment applied to a fundus camera, in which a fundus camera 1 is arranged in front of a subject, and in the fundus camera 1, an objective lens 2 is provided on a front optical axis of an eye E to be examined. A perforated mirror 3 and a taking lens 4 are sequentially arranged to form a taking optical system, and an illumination optical system (not shown) is arranged in the incident direction of the perforated mirror 3.

A television camera connection adapter 5 is detachably provided in the rear of the fundus camera 1, and a relay lens 6 in the connection adapter 5 allows the light flux of the photographing optical system of the fundus camera 1 to be attached and detached behind the connection adapter 5. It is adapted to be guided to the TV camera 7 which is freely arranged. Further, the output of the television camera 7 is connected to a still image recording device 8 such as a CCD.

In the fundus camera 1, a CPU 9 for controlling the main body of the fundus camera 1 is provided, and the outputs of the alignment detection switch 10 and the photographing switch 11 are connected to the CPU 9. The CPU 9 has a nonvolatile memory 12 and an input / output control section. It is connected to 13.

In the connection adapter 5, C is provided as a control means for processing a signal for controlling the recording system of the fundus camera 1.
The PU 14 is provided, the output of the television camera detection switch 15 that detects the connection of the television camera 7 is connected to the CPU 14, and the CPU 14 is connected to the nonvolatile memory 16. Further, the CPU 14 is connected to the still image recording device 8 via the input / output control unit 17 and controls the still image recording device 8. Further, the CPU 14 controls the input / output control unit 1 of the main body of the fundus camera 1 via the input / output control unit 18.
Connected to 3. That is, the CPU 9 of the fundus camera 1 and the CPU 14 of the connection adapter 5 are connected to the input / output control units 13 and 1, respectively.
It is electrically connected via 8 to perform communication for exchanging information with each other.

The control of the photographing operation is carried out according to the flowchart shown in FIG. 2, and the CPU 14 in the connection adapter 5 is controlled.
Is the shooting light intensity,
Data such as the light intensity correction value and the presence / absence of an optical filter are read from the memory 16 and further communicated with the still image recording device 8 via the input / output control unit 17 to switch the communication baud rate, respond to a transmitted command, etc. Then, the type of the still image recording device 8 is determined and the initial error is confirmed. The CPU 9 on the fundus camera 1 side reads the above data by communicating with the CPU 14, confirms error information and the like, and sets photographing conditions.

In order for the photographer to take a picture, the alignment detection switch 10 detects the operation of a changeover switch for changing the anterior segment observation state to the fundus observation state, which is performed as an alignment operation, movement of the gantry, operation of the focus knob, etc. CPU9 indicates that the next shooting will start.
Communicate to 4. In response to this, the CPU 14 communicates with the still image recording apparatus 8 to detect whether there is no abnormality in the peripheral device, whether the recording medium is set normally, or the like, and then transitions to the recording preparation state.

Next, when the photographing switch 11 is pressed, C
The PU 9 notifies the CPU 14 that the photographing switch 11 has been pressed, and the CPU 14 commands the still image recording device 8 to perform a recording operation. An illumination light flux from an illumination optical system (not shown) is reflected by the perforated mirror 3, passes through the objective lens 2, and the subject's eye E is examined.
Illuminate. The image of the eye to be inspected reflected by the eye to be inspected E passes through the central part of the objective lens 2 and the perforated mirror 3, passes through the taking lens 4 and the relay lens 6 in the connection adapter 5, and is focused on the television camera 7, The video signal of the subject's eye E from the camera 7 is sent to the still image recording device 8. When the photographing is completed, the CPU 14 detects whether or not the recording area for the next photographing remains in the recording unit of the still image recording device 8 to confirm whether the photographing can be normally performed next time.

By repeating the above operation, the CPU 9 in the main body of the fundus camera 1 can perform control without being aware of the type of the still image recording device 8 connected thereto. Further, the CPU 9 and the CPU 14 can communicate personal information of the subject, photographing conditions, photographing date and time, timer information at the time of fluorescence photographing, etc., and the CPU 14 can also transmit these data and capture them in the still image recording device 8.

Further, since the detection switch 15 for detecting the detachment of the television camera 7 from the television camera connection adapter 5 is provided, the photographing condition stored in the memory 16 when the connection adapter 5 is detached. Clear etc.

Further, by writing various types of control methods of the image recording device 8 in the non-volatile memory 16 in the connection adapter 5 to have a function of discriminating the image recording device 8, the ophthalmologic photographing section is functionally burdened. It is possible to control a large number of types of image recording devices 8 without multiplying.

Further, the nonvolatile memory 16 in the connection adapter 5 stores various previous photographing conditions such as the optimum photographing light amount, the light amount correction value, and the presence / absence of an optical filter for the TV camera 7 being attached. For a photographer who needs to properly use the plurality of TV camera connection adapters 5 according to the difference in the TV cameras 7, the time required for the initial setting can be shortened.

By using the recording system control device as described above, it is possible to control the image recording device 8 suitable for the operation of the ophthalmologic photographing unit, and it is costly for the photographer who does not need to capture the eye image to be examined as an electronic image. Does not impose a physical burden.

[0021]

As described above, the ophthalmic image recording system according to the present invention is provided with the first and second communication means for communicating with both the photographing optical section and the image recording device in the adapter. It is possible to exchange information with the photographing optical unit and control the image recording apparatus.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment applied to a fundus camera.

FIG. 2 is a flow chart diagram.

[Explanation of symbols]

1 fundus camera 2 Objective lens 3 perforated mirror 4 shooting lens 5 TV camera connection adapter 6 relay lens 7 TV camera 8 Still image recorder 9,14 CPU 10 Alignment detection switch 11 Shooting switch 12, 16 Non-volatile memory 13, 17, 18 Input / output control unit 15 TV camera attachment / detachment detection switch

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Claims (5)

(57) [Claims] 1. A photographing optical unit and a television camera are optically connected to each other.
For ophthalmic image recording system with connectable adapter
In addition, the adapter has a communication circuit unit,
Section is electrically connected to the shooting optical section and
To the television camera and the first communication means for performing communication
Image recording device capable of recording the imaged output and electrical
An image recording system for ophthalmology, which comprises a second communication unit connected to the image recording apparatus to communicate with the image recording apparatus.
Mu . 2. The adapter controls the image recording device.
A storage means storing the method , wherein the storage means stores
The ophthalmic image recording system according to claim 1, wherein the image recording apparatus is controlled based on the control method . 3. The ophthalmic image recording system according to claim 2, wherein the storage unit stores a plurality of different control methods for the image recording apparatus, and controls a plurality of different image recording apparatuses.
Tem . 4. The ophthalmic image recording system according to claim 3, wherein the image recording device is identified by using the second communication unit.
Tem . 5. The ophthalmic image recording system according to claim 2, wherein the previous photographing condition is stored in the storage means.