JP3056262B2 - Ophthalmic imaging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic photographing apparatus,
In particular, the present invention relates to an ophthalmologic photographing apparatus suitable for capturing a moving image of a fundus .

[0002]

2. Description of the Related Art In a conventional video recording apparatus such as a VTR, when recording a moving image, a count or a time value of a counter or a timer is simultaneously stored in synchronization with a recording operation. It was usual to display the values simultaneously.

[0003] However, the display of the count or the time value is performed in synchronization with the reproduction of the moving image, and only the count or the time value is not displayed independently of the moving image.

[0004]

In the case where a moving image is captured by an ophthalmologic photographing apparatus such as a fundus camera at the time of fluorescence photographing or the like, irradiation of the subject's eye with illumination light for a long period of time causes the subject's eye to be irradiated. In some cases, an intermittent image is taken in an ophthalmologic photographing apparatus because it may have an undesirable effect.

[0005] When playing back and browsing a moving image recorded in this manner, it is often not necessary to continuously browse all recorded images taken intermittently from the beginning. Only the moving images captured in the time zone of have importance.

[0006] In a conventional ophthalmologic photographing apparatus, as in the case of a recording apparatus such as a VTR, the display of the count or time value is synchronized with the captured moving image. In such a case, the count or time value of the time zone is separately recorded, an index is created, and the index is stored together with a recording medium such as a video tape or a floppy disk.

However, in order to create an index of recording information such as counting or timing values, a third party may record the information during imaging, or the imaging operation may be temporarily stopped, and information such as counting or timing values may be recorded. To do it, it was inefficient.

[0008] The present invention has been made to solve the above drawbacks of the conventional ophthalmologic photographing apparatus, and automatically stores the image pickup information such as count or time measurement value recording operation of the information
Work was required, and to provide a good ophthalmic imaging apparatus having an imaging efficiency.

[0009]

An ophthalmologic photograph according to claim 1.
The shadow device converts the image of the eye under fluorescence imaging into electrical signals.
Recording means for recording, and the recording operation of the recording means is not started
Instruction means for instructing to stop and when a fluorescent agent is injected intravenously
Timing means that starts timing from a point and counts the elapsed time
The instruction means instructs start or stop of the recording operation.
The elapsed time measured by the timing means at the time of
Storage means, and the elapsed time stored by the storage means.
Display means for displaying.

[0010] The ophthalmologic photographing apparatus according to claim 2 is a fluorescent photographing apparatus.
Recording means for converting the eye image at the time of shadow into an electric signal for recording
To start or stop the recording operation of the recording means.
Indication means and start timing from the time of intravenous injection of fluorescent agent
A timer means for measuring the elapsed time, and
Input means for inputting outside imaging information;
The timing when the stage instructs the start or stop of the recording operation
Time elapsed by the means and the input means
Storage means for storing the input information;
Display means for displaying memorized information.
And

[0011]

According to the ophthalmologic photographing apparatus of the present invention, the fluorescence
At the time of the intravenous injection of the fluorescent agent,
Start. Then, the recording operation is instructed by the instruction means.
The elapsed time from the start of the timing by the timer
The time is stored in the storage means and the recording is started.
In addition, when the recording means is instructed by the instruction means, the timer
The elapsed time from the start of time measurement to the stop of recording
The recording is stopped and the recording is stopped. And display
By calling this means to display this elapsed time.
And the operator resets the clock time of the intermittent recording operation.
It can be judged visually and the necessary moving images can be easily reproduced.
it can. In addition, since other information of the clock time can be stored in the storage means and displayed together with the clock time, the operator can determine at a glance what time zone and what kind of image was taken, and it is extremely easy to obtain a necessary moving image. Can be played.

[0012] Further, since other information of the clock time can be stored in the storage means and displayed together with the clock time, the operator can determine at a glance what time zone and what kind of image was taken, and it is extremely easy Playback of moving images.

Hereinafter, the ophthalmologic imaging of the present invention will be described with reference to the drawings.
An embodiment of the shadow device will be described.

FIG. 1 is a block diagram showing a circuit configuration of an embodiment of an ophthalmologic photographing apparatus according to the present invention.

In FIG. 1, an image pickup device 1 for picking up an image of an eye to be examined is a CCD. The signal representing the image of the subject's eye converted into an electric signal by the image sensor 1 is input to the signal processing circuit 3. The signal processing circuit 3 performs processing such as addition of a synchronization signal to the electric signal input from the imaging element 1 to process the electric signal into a video signal, and has an arithmetic control operation for controlling the operation of other circuit elements of the present embodiment. Do.

The image of the subject's eye converted into a video signal by the signal processing circuit 3 is input to a VTR 7 as recording means and recorded, and is also input and displayed on a monitor 6 as display means.

The start or stop of the recording operation of the VTR 7 is controlled by a switch 5 as an instruction means. The switch 5 controls not only the operation of the VTR 7 but also the operation of the timer 8 as time measuring means.
Via the signal processing circuit 3.

The timer 8 is used, for example, in the case where the ophthalmologic photographing apparatus of the present embodiment is used as a fundus camera to perform fluorescence photographing.
Inject the fluorescent agent intravenously into the subject and start timing,
The clock time at the start of recording and the clock time at the stop are input to the signal processing circuit 3. The time measurement data of the timer 8 input to the signal processing circuit 3 is written and stored in the memory 2 as storage means by the signal processing circuit 3.

A keyboard 4 is connected to the signal processing circuit 3 and is used for inputting the name of the subject and various data at the time of imaging, and the like. 3 is stored in the memory 2. This data is used as imaging information other than the clocking time, for example, when a large change is seen in the fundus image of the eye to be inspected, is stored in the memory 2 together with the clocking time, and is displayed on the monitor 6 together with the clocking time. Is also good.

As shown in FIG. 2, the image 9 currently being recorded is displayed on the monitor 6, and the time measured by the timer 8 and stored in the memory 2 is displayed. It should be noted that the No. indicated by reference numeral 10 The display of 3 indicates that the fundus image 9 displayed on the monitor 6 is an image captured in the third time segment, and the time display indicated by the reference numeral 11 indicates the time from when the timer 8 starts counting time. Indicates the total clock time. Reference numeral 12 indicates that the time measured at the start of recording in the first time segment is 10 seconds after the start of the time measurement, and that the time measured at the time of stopping the recording is 2 minutes and 50 seconds. Code 13
Similarly, it indicates that the recording start is after 4 minutes and 20 seconds and the recording stop is after 8 minutes and 30 seconds.

It is needless to say that the display of the time measured by the timer is not limited to the format shown in FIG. 2, and may be a simple count display (count display) instead of the time display. Also,
The display means is not limited to a monitor such as a CRT, but may be a method of printing out by a printer or the like.

When a still video, for example, is used as the storage means, the inside of the storage medium is subdivided for each image as shown in FIG. 3, and various kinds of photographing information as shown in FIG. You may make it possible to be displayed.

[0023]

As described above, the ophthalmologic imaging apparatus according to the present invention can be used for fluorescence imaging from the time of intravenous injection of a fluorescent agent.
Start timekeeping by means of timekeeping and record operation by instruction means
To start recording from the time when the timer starts.
The elapsed time is stored in the storage means and recording is started.
When the recording means is instructed by the instruction means,
Time elapsed from the start of recording to the end of recording
And stopped the recording,
Since we decided to display this elapsed time on the display means,
The operator can see at a glance the time of the recording operation that was performed intermittently.
Can make judgments and easily reproduce the necessary moving images.
Therefore, it is not necessary to create a memo or the like of such information, and the efficiency of moving image search can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a display example of one embodiment of the present invention.

FIG. 3 is a diagram illustrating an example of allocation of storage media of storage means according to an embodiment of the present invention.

FIG. 4 is a diagram showing an example of data stored in one frame of the storage medium of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Image sensor 2 Memory 3 Signal processing circuit 4 Keyboard 5 Switch 6 Monitor 7 VTR 8 Timer

Claims (2)

(57) [Claims] 1. An image of an eye to be inspected during fluorescent imaging is converted into an electric signal.
Recording means for performing recording and start of recording operation of the recording means
Or a means of instructing stop, and intravenous injection of fluorescent agent
Timing starts counting from the point of time and counts the elapsed time
Means for instructing start or stop of the recording operation.
The elapsed time measured by the timing means at the time indicated
Storage means to remember and the elapsed time stored by the storage means
Ophthalmology comprising display means for displaying a space
Shooting equipment. 2. An image of an eye to be inspected at the time of fluorescence imaging is converted into an electric signal.
Recording means for performing recording and start of recording operation of the recording means
Or a means of instructing stop, and intravenous injection of fluorescent agent
Timing starts counting from the point of time and counts the elapsed time
Means for inputting imaging information other than the elapsed time.
Input means and the instruction means start or stop the recording operation.
The elapsed time and the time measured by the timer
And a storage device for storing information input by the input means.
Stage and display means for displaying information stored in the storage means
An ophthalmologic photographing apparatus comprising: