JPS5977826A - Endoscopic photographing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscopic photographing system having a plurality of release switches t.

In general, endoscopic imaging systems configured to have not only an endoscopic examination function but also an endoscopic imaging function are well known. In this endoscope system, in order to facilitate photographing, Vc is used instead of a camera release switch, for example, a release switch provided on the internal inkstone operating section, light source unit, data 4-inclusive unit, etc. ing. In this case, the signal processing operation of the light source control circuit is different when the camera release switch is operated and when other release switches are operated. Therefore, it is necessary to identify whether the operated release switch is a camera release switch or another release switch. For this reason, in the past, for example, JP-A-56-1
As shown in Japanese Patent No. 51019, the light source control circuit periodically generates a release monitoring error signal in the data processing sequence to determine whether a release operation is performed on each release switch. ! : Monitoring. However, in this case, the same number of time slots as the release switches used are provided in each operation cycle, and as the number of release switches used increases, the number of time slots to be used decreases, and eventually, The length of the tanuki hakugo for the same release switch becomes longer. Unfortunately, this issue is resolved when complex data is transferred and
This problem becomes more noticeable when the intervals between consecutively allocated time slots cannot be kept narrow.

Therefore, an object of the present invention is to provide an endoscopic photographing system that minimizes the time from release operation to the start of photographing, regardless of the data to be transferred.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An endoscopic imaging system according to an embodiment of the present invention will be described below with reference to the drawings.

In the endoscopic imaging system shown in FIG.
A light source connection end 2 is connected to a light source unit 3, and an endoscope camera 5 is attached to a camera connection end 4. A light guide 6 and an image guide 7 are provided in the interior 1, one end of the image guide 7 is connected to an objective lens thread 8, and the other end is opposed to an eyepiece lens 9. The endoscopic camera 5 is provided with a film cassette loaded with a film 10, and the film 10 is provided facing the photographic lens 12 via a shutter 117. A beam splitter 13 is provided within the camera 5 between the photographing lens 12 and the camera connection end 4. This beam splitter 1
A light receiving element 14 is provided on the side surface of 3.

The output end of the light receiving element 14 is connected to a camera control circuit 15, and a synchro switch 16 is connected to the camera control circuit 15. An output end of the camera control circuit 15 is connected to a signal transmission line 19 via a connector 18. This signal transmission path 19 is connected to a light source control circuit 22 of the light source unit 3 via a connector 20f. This light source unit 3 is provided with a light source 23 for collation and photographing. This light source 2
A condensing mirror 25 is arranged on the rear side of the camera 3, and a shutter plate 25 is arranged on the front side. Further, the control circuit 22 of the light source unit 30 is connected to a function expansion unit, for example, a control subcircuit 31 of the data 4-inclusive unit 30 via a data transmission line 27. In addition, this data 4 included unit 3
0 is the data such as disease name, patient name, date, etc.
The light source unit 3, camera 5S, SWI, and SW3 are combined.

FIG. 2 shows a wiring diagram of the camera control circuit 15, light source control circuit 22, and data edge control circuit 31 shown in FIG. I41. The light source control circuit 22 includes a reference clock oscillator 40 that generates a reference clock signal, and a dedicated memory (ROM).
) 41, random access memory (RAM) 42,
Camera control circuit 15, data control (2) central processing unit (CPU) 47 coupled to circuits 31 and 45
He is reciting.

In the circuit shown in Fig. 2, when the camera release switch SW2 is operated as shown in Figure 3 (Buddha), the camera control circuit 15 releases the release 1 as shown in Fig. 3(B). The light source control circuit 22 is operated by turning the 1g signal on all signal lines in the 1g transmission line 19;
The CPU 47 generates the release signal, and when it is confirmed that the release signal has been received by the shutter 44, that is, that the release signal was generated by operating the release switch 8W2, the CPU 47 activates the shutter. plate 2
6 is closed, and a tube voltage is applied to the light source 23 to set the light source unit 3 in a ready state for photographing. In this state, the light transmitted from the light source 23 to the affected area 70 via the light guide 6 is cut off at KL as shown in )K in FIG. On the other hand, the force and camera control (b) is about 15 hours after the release number 1i is generated, and after the shutter 11t1 is used, the synchro switch 16 is closed and the synchro switch number is activated as shown in FIG. 3(B). Occur. In response to this jinkurogi issue, the light source control circuit 22 switches the shutter plate? 5f, it is opened and, as shown in FIG. 3 (DJ), the light from the light source 23 is used as photographing light to irradiate the affected area 70 via the light guide 6.

When the film 10 is irradiated with light, the camera 2 control circuit 16 generates a photographing completion signal in response to the output M generated from the light receiving element 14, and then closes the shutter llf. On the other hand, in response to the completion of photographing 4, the light source control circuit 22 applies a low electric current to the light source 23 to set it in the collimation state, and closes the shutter plate 25. After this,
The shutter plate 25 is opened and the light source unit 3 is set to illumination mode.

On the other hand, as shown in FIG. 4(A), the release switch S
If a release switch other than W2, for example release switch SWj, has been made, the data 4-inclusive control 111J
After detecting that the release switch SWJ has been operated at the timing shown in Figure 4 (81), the circuit 3 outputs data ks'' representing the -V operation of the release switch via 457. It is transmitted to the light source control circuit Ei-Dou 22 at the timing shown in Fig. 4 ta.In this case, I10;
This will cause an interrupt to U47. Therefore, in response to this release data, the light source control circuit 22
The operation request number 4g is supplied to the camera control circuit 15 via the signal transmission line 19.

In response to this jiLIIff: request signal, this camera control circuit 15 starts operating as shown in FIG. ) is equivalent to the release No. 4i shown in ).

The subsequent operations will be performed in the same manner as described above.

When the release switch SW1 is operated, the same operation as described above is performed.

The photographing operation of the circuit shown in FIG. 2 will be explained with reference to the flow chart shown in FIG.

Release switch SWJ, 8W2 or 5W37i-
When the button is operated, the release key number or ilo ==leather key 4
B, 44 or 45, and at this timing, relay No. 166 is received (fcIlo = border).This interrupt causes
Particularly, when it is detected that the camera release switch 8W2 has been operated, it is detected that an interrupt has been executed from the light source control rotation, that is, when it is detected that the release switch 8W1 or SWj has been operated, as described above. After issuing an operation request No. 1 to the camera control circuit 15, the light source unit 3 is set to the photographing state. As described above, the light source unit 3 is set to the video operation mode in response to the synchronizer No. 48 from the camera control circuit 15. Furthermore, the camera iyj+J6 completes the photographing from 1 circuit 15 (in response to No. 5, the light source unit 3 is set to the intensive examination mode with the light #t23 temporarily cut off as described above).

As explained above, in this investigation, by inspecting the address of ``110-;='', the release switch of the camera and other Since the switch is identified, the time period 3'ta from when the release switch is operated until the entire photographing operation starts is shortened.

Although this button light has been described above with reference to one embodiment, the present invention is not limited to this embodiment. For example, it is possible to have the control circuit 8 and a release switch function in the operating section of the endoscope 1, and to execute a photographing operation in response to the release switch. In addition, the light emission WL of the light source 23 itself
It is also possible to control the light 1 that enters the light guide 6 from the light source 23 by arranging all the aperture rib plates on the MIJ side of the light source 23 without having to worry about it.

4. Explanation of the Diagram 1. A schematic configuration diagram of an endoscopic imaging system according to an embodiment of the present invention. Figure 2 shows the light source control shown in Figure 1.
tI1gJ path, the connection diagram between the camera control circuit and the data ear side control circuit, Figure 3 is an explanatory diagram of the operation of the endoscopic imaging system when the camera release switch is operated, and Figure 4 is the connection diagram for other than the camera release switch. FIG. 5 is a flowchart showing the operation of the endoscopic imaging system when the release switch is operated.

1... Endoscope, 15... Camera control circuit, 22...
・Light source control circuit, 31...data edge control aa1 circuit,
SWI I SWI, SWJ... Release switch.

Applicant's Representative Patent Attorney Suzu A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Showa Year, Month, Day 1, Display of the case, Patent Application No. 186839/1983, 2, Name of the invention, Endoscopy System 3, Relationship with the person making the amendment Patent applicant (037) Olympus Optical Industry Co., Ltd. 4, Agent 5, Voluntary amendment 7, Contents of amendment (1) Specification, page 5, line 12 “ Concentrating mirror 2
5" is corrected to "concentrating mirror 24."

(21, page 7, line 11 “Shutter plate 26
" is corrected to "shutter plate 25."

(This is corrected so that Figure 1 out of 31 drawings has not been included in the attached drawings.

Claims (4)

[Claims] (1) Each person has their own function t-i! A photographing device, an endoscope, a light source device, and a function expansion device each having a control means for controlling the device, a transmission path for selectively coupling these devices to each other, and a plurality of release means for performing a photographing operation. And which one of these multiple release means?
If it detects that the predetermined manual zoom means has been operated, an endoscope (the most system. (2) In the endoscopic photographing system according to claim gJ11, the steps of the photographing operation in Hi7 are the central control unit and the shutter release means when the release means of " In response to the release request, this central processing unit interrupts the central processing unit '-1 and performs a number of I/O operations; An endoscopic imaging system that identifies release means. (3) An fMJ&M system according to claim 2, wherein means for recording the procedure of the photographing operation is included in the control means of the light source device. (4) Scope of patent ns* described in paragraphs 1, 2, or 3 (7) Endoscope (in a tactile system, a data ear in which the function expansion device is coupled to an i?J light distribution source device) Endoscopic imaging system that can be used with side equipment.