JP2675972B2 - Ophthalmic 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 apparatus suitable for operating a timing circuit of an electronic image device connected to the outside of the apparatus body in association with the operation of the timing circuit installed in the apparatus body. .

[0002]

BACKGROUND ART Conventionally, an ophthalmic apparatus, for example, in the fundus camera, the apparatus body external to the electronic image memory of the electronic display device, a still video or the like externally connected, a plurality of photo intravenously with fluorescent agent In order to perform shooting and image recording, the timekeeping start switch dedicated to the fundus camera and the timekeeping start switch dedicated to electronic video equipment are simultaneously operated to activate the timing circuit of the fundus camera and the timing of the electronic video equipment. There is a circuit in which a photographing circuit (image processing time) is activated when a fluorescent fundus image is photographed and an image capturing time (time) is recorded during fluorescent fundus image recording.

[0003]

[Problems to be Solved by the Invention] However, a start / stop switch for timekeeping dedicated to a fundus camera and an electronic projection
Since it is necessary to manually operate the timekeeping start / stop switch dedicated to the imaging equipment at the same time, the timekeeping start / stop time may deviate in time even if they are manually operated at the same time. However, sometimes he forgets to press one or unknowingly forgets one operation. Therefore, in such a case, it may be necessary to take an image again, which is not preferable. In particular, in fluorescent fundus photography by injecting a fluorescent agent into a patient, it is not preferable in terms of safety to inject the fluorescent agent twice in succession,
It puts a burden on the patient, such as requiring a retest at a later date.

Therefore, an object of the present invention is to reliably and simultaneously perform the operation of a timing circuit which is connected to the outside of the apparatus main body and which outputs a timing signal to an electronic image device inside the apparatus main body. An object of the present invention is to provide an ophthalmologic apparatus that can be timed.

[0005]

In order to achieve the above object, an ophthalmologic apparatus according to the present invention has a start / stop of a first timing circuit connected to the outside of the apparatus main body and outputting a timing signal to an electronic image device. a second installation in the apparatus main body
2 A star that starts and stops in conjunction with the operation of the timing circuit
A control circuit having a gate / stop switch is provided in the main body of the apparatus .

[0006]

According to the ophthalmologic apparatus of the present invention, when the timekeeping start switch of the apparatus body is operated, the timekeeping circuit of the apparatus body starts to operate. Then, in synchronization with this, the control circuit operates the timing circuit connected to the outside of the main body of the apparatus.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a side view showing a fundus camera as an example of the ophthalmologic apparatus according to the present invention. In FIG. 1, 1 is a base, 2 is a pedestal, 3 is a device body, and 4 is 35.
mm is the camera body. The gantry 2 can reciprocate with respect to the eye 5 to be inspected, and can move in the left-right direction. Stand 2
Is provided with a bracket 6.

The bracket 6 is provided with a fan-shaped guide member 7. A guide member 8 that guides the guide member 7 is provided on the apparatus body 3. A shock absorber 9 is provided between the device body 3 and the bracket 6. One end portion 10 of the shock absorber 9 is rotatably screwed and fixed to a boss portion 12 projecting from a side wall 11 of the apparatus body 3 as shown in FIG.
The other end 13 is rotatably fixed to the bracket 6 with screws.

The device body 3 is supported by the bracket 6 via the guide member 7, the guide member 8 and the shock absorber 9, and the fundus camera can be tilted by moving the device body 3 while guiding the device body 3 to the guide member 7. it can.

The retinal camera having this structure has a structure in which the tilt mechanism is directly provided on the main body 3 of the apparatus, so that it is more compact than the conventional tilt mechanism.

As shown in FIG. 1, an electronic image is displayed on the apparatus main body 3.
Electronic image recording device 14 as an image device is connected.
The electronic image recording device 14 is of a type for performing still video recording. This is the electronic image recording device 14 is connected a video timer 15 as the first timing circuit, the video timer 15 is connected to the apparatus main body 3 via the connector J, P.

A second timing circuit 16 is provided inside the apparatus body 3.
And a control circuit 17 are provided. The timing circuit 16 and the control circuit 17 are turned on / off by a timing start switch 18. This timekeeping start switch 18 is
It is provided at the rear of the apparatus body 3 shown in FIG. The control circuit 17 is composed of a relay, 19 is a coil, and 20 is a movable contact.

The timing circuit 16 is a timing start switch.
When 18 is closed, it is turned on and starts timing. The clock signal is input to the clock display circuit 21, and the time-changing time is converted into an optical signal for visible light display. As a result, the time is imprinted together with the fundus image when the photograph is recorded based on the operation of the photographing switch as in the conventional case.

The control circuit 17 includes a timing start switch 18
Is closed, the coil 19 is energized, the movable contact 20 is closed, the pins J1 and J2 of the connector J are short-circuited, and the pins J1 and J2 of the video timer 15 are short-circuited. That is detected by pins P1 and P2,
Start timing operation. Video timer 15, with which the output timing signal to the electronic image recording device 14, an electronic image recording device 14 records the fluorescent fundus image based on the timing signal from the video signal and the video timer 15 from the apparatus main body 3 The imaging time is recorded.

Therefore, according to the ophthalmologic apparatus of the present invention, only by operating one switch, the timing circuit of the apparatus main body and the timing circuit connected to the outside of the apparatus main body are operated in synchronization. You can

The timekeeping start switch 18 according to the present invention can also be used as a timekeeping stop switch, and is a type in which the pressed state is maintained when pressed once, and the switch is returned when pressed again. Simultaneously with the opening of the power start switch 18, the timing operation of the timing circuit 16 and the video timer 15 is stopped.

As described above, in the embodiment, the relay is used as the control circuit 17, but it is conceivable to use the semiconductor element, the timekeeping start switch itself, the voice, or the like.

Since the ophthalmologic apparatus according to the present invention is configured as described above, the electronic apparatus connected to the outside of the apparatus body
The first timing circuit of the video equipment can be reliably linked to the operation of the second timing circuit installed inside the main unit, avoiding the deviation of the timing operation start time and the deviation of the timing stop time. br /> The effect is achieved.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a main part of an ophthalmologic apparatus according to the present invention.

FIG. 2 is a side view of a fundus camera as an example of the ophthalmologic apparatus according to the present invention.

FIG. 3 is a partially enlarged perspective view showing a side surface of the ophthalmologic apparatus according to the present invention.

[Explanation of symbols]

3 ... Device main body 14 ... Electronic image recording device ( electronic image device) 15 ... Video timer ( first timing circuit) 16 ... Second timing circuit 17 ... Control circuit

Claims (1)

(57) [Claims] 1. An electronic image device connected to the outside of the apparatus main body
Start circuit of the first timing circuit that outputs a timing signal to the
The-up, the operation of the second timing circuit for installation in the apparatus main body
Start / stop switch to start / stop in conjunction
An ophthalmologic apparatus characterized in that a control circuit having a switch is provided in the apparatus main body .