JPS5872934A - Light source device for endoscope - Google Patents

Abstract

PURPOSE:To facilitate confirming the number of frames in photographing, by providing a counter, which is counted up in accordance with the photographing operation, and a display means, which displays the number of frames of a photographic film in accordance with this counter, in a light source device body. CONSTITUTION:The release signal which is generated when a release switch 20 is turned on is counted in a counter 23, and the output signal from a decoder 33 which is interlocked with the counter 23 is inputted to a liquid crystal display plate 29, and the number of frames of a photographed film 19 is displayed. Since the liquid crystal display plate 29 where information of the number of frames of the film 19 is displayed is provided in a light source device body 11, the size, the installation position, etc. of the liquid crystal display plate 29 are not limited. Thus, information of the number of frames of the film 19 is confirmed easily.

Description

[Detailed description of the invention] This invention relates to improvements in light source devices for endoscopes.

Generally, the endoscope is detachably connected to the main body of the light source device.
Light emitted from the light source device main body is guided into the endoscope.

In addition, an endoscope-specific camera, for example, is removably attached to the eyepiece of the endoscope, so that a photograph of an observed image guided to the eyepiece of the endoscope can be taken.

By the way, conventionally, the main body of an endoscope camera is provided with a display window for displaying the number of frames and a display disc, etc., which is engraved with a scale for displaying the number of frames and rotates in conjunction with the rotation of the film winding shaft. , look through the display window and read the scale on the display disk.
i! There was a device that allowed you to check the number of frames of film that has been shot or the number of frames of film that remains.

However, when the camera dedicated to endoscopes is made smaller, the size of the scale characters on the display disk becomes smaller, causing a problem that they become difficult to see. (9) Since the display disc was connected to the film winding shaft via a gear mechanism, etc., the display window could be installed in a limited position, and there was a risk that it would have to be installed in a position that was difficult to see. Therefore, there is a problem in that the user has to, for example, change the endoscope and look into the display window, making it troublesome to check the number of frames.

For example, as shown in Japanese Patent Application Laid-open No. 54-67422, a switch is provided that is linked to a lever to wind the film, and a pulse is generated at the time of the film winding operation. For counting, there are cameras equipped with a frame counter that displays the number of frames on the film, and JP-A-56-6225.
As shown in the above publication, some cameras have a vibrating sounding body installed inside the camera body and report the number of frames on the film by fK, ``Since the sounding body and other mechanisms were all built into the camera body, there was a problem in that the camera body became large.

This invention was made in view of the above-mentioned circumstances, and its purpose was to make it easier to check the number of frames on a film when taking pictures through an endoscope. It is an object of the present invention to provide a light source device for an endoscope that is advantageous in terms of achieving practical use.

The present invention will be described below based on embodiments shown in the drawings. 1 to 3 show a first embodiment of the present invention. In FIG. 1, 1 is a flexible endoscope.

This flexible endoscope 1 is formed from an insertion section 2 and an operation section 3.

The insertion section 2 includes a distal end section 4, a curved section 6, and a flexible tube section 6. Further, the operation section 3 is provided with an eyepiece section 1 and is connected to a universal cord 8. An endoscope camera 9 is removably connected to the eyepiece 7, and the universal cord 8 is removably connected to the side connector 12 of the light source device main body 11 via the connector 10. It has become. Additionally, as shown in FIG. 2, a light guide fiber 13 and an image guide fiber 14 are provided inside the endoscope 1, respectively. The light guide fiber 13 is disposed across the insertion section 2, the operation section 3, and the universal cord 8, with one end surface facing an illumination window (not shown) of the tip component 4, and the other end surface facing the connector 10. The receiver of the light source device main body 1 faces the run f1s in the light source device main body 11 while connected to the side connector 12. Further, the image guide fiber 14 is arranged from the insertion section 2 to the operation section 3), one end surface is arranged to face an observation window (not shown) of the distal end component 4 via an objective lens J6, and the other end surface is It is arranged to face an eyepiece (not shown) of the eyepiece section 7.

On the other hand, the endoscope camera 9 is provided with a Z-sea shutter 18 and a film 19 in this order behind the photographic lens 17, as well as a release switch 20 and an open/close switch 21, respectively. The release switch 2o is used to open the shutter 18 (a), and the open/close switch 2o is on the back of the camera 9! The ON/OFF operation is performed in conjunction with the opening/closing of the I22, and the ON/OFF operation is performed when the camera back 22 is opened to reset the counter 23. Further, the release switch 20 and the opening/closing switch 21 are connected to the internal view #i via contacts (not shown).
! The universal cord 8 is connected to conducting wires x4 and 2M, respectively, which are disposed from the operating section 3 of the universal cord 8 to the universal cord 8. The tips of these conductive wires 24e25 are connected to respective contacts 26e2r provided on the connector 10, respectively.

Further, as shown in FIG. 3, the front panel T4 panel 11a of the light source device main body 1 is provided with the receiver side connector 12, a reset switch 28, a liquid crystal display board (frame number display board) 29, and various operation knobs. It is being The receiver side connector 12 is provided with contacts 10.31. One contact 30 is connected to the EE drive circuit 32 and the counter 23, and the other contact 31 is connected to the counter 21. Furthermore, this counter xsttch decoder 33
, a liquid crystal display board 29, and a reset switch 28 are connected to each other. The decoder 33 and the liquid crystal display board 29
A display means for displaying the number of 190 film frames is formed. As shown in FIG. 2, the connector JO of the endoscope 1 is connected to the side connector 12 of the light source device main body 11.
When connected to ti!, contacts 26 and 21 electrically connect to 30 and 31, respectively. It is expected to be continued. Note that 34 is a rung lighting device.

Next, the operation of the above configuration will be explained. First, light emitted from the rung 15 in the light source device main body 11 is guided by the light guide fiber 13 and emitted to the outside from the illumination window of the distal end component 4 of the endoscope 1. irradiated. The image of the area to be observed is guided to the eyepiece 7 via the objective lens 16 and the image guide fiber 14, so that the area to be observed can be observed by looking through the eyepiece of the eyepiece 1. In addition, when the endoscope camera 9 is connected to the eyepiece 7,
The image of the observed area guided to the eyepiece 7 is guided to the finder via the photographing lens 11 and the mirror shutter 18, so that the image of the observed area can be observed by looking through the finder. Next, when taking a photograph, the release switch 20 is pressed and operated. When the release switch 20 is turned on in this manner, the mirror shutter 18 rotates and opens, and the nine barrels pass through the photographing lens 11 and are guided onto the film 19, and at the same time, the EE drive circuit 32 operates. When the exposure time corresponding to the brightness has elapsed, the mirror shutter 18 is closed by the EE drive circuit 32, and the mirror shutter 18 returns to its original state as shown in FIG. Further, a release signal generated when the release switch 20 is turned on is counted by a counter 23. The output signal from the decoder 33 linked to the counter 23 is input to the liquid crystal display board 29, and the number of frames on the photographed film 19, the number of frames on the remaining film 19, etc. are displayed on the liquid crystal display board 29. In this case, since the counter 23, decoder 3S, and liquid crystal display board 2g are always energized within the light source device main body 11, one film 19
Even if the camera 9 is removed from the endoscope 1 during photographing, the display on the liquid crystal display board 29 will not disappear. In addition, internal visual ambiguity 1
Even if the camera 9 is once removed from the endoscope 1, it is possible to continue counting the number of frames on the film 19 by attaching the camera 9 to the endoscope 1 again. Also,
When the camera 9's spreader 22 is opened by the film exchanger, the open/close switch 21 is turned on and the counter 23 is opened.
is reset.

Note that the counter 2B can also be reset by turning on the reset switch 28 provided on the main body 11 of the light source device, and the counter 23 can be reset to 0 even in the middle of shooting a single film 19. can do.

Thus, in the above configuration, since the liquid crystal display board 1g on which the information on the number of frames of the film 19 is displayed is provided in the light source device main body 11, the size of the liquid crystal display board 29 (the size of the displayed characters) or the installation There are no restrictions on location, etc.

Therefore, the line spacing of the frame number information of the film 1g can be easily determined. Further, since the mechanism for displaying the frame number information of the film 19 can be omitted from the endoscope-only camera p, the endoscope-only camera 9 can be made smaller.

Next, a second embodiment shown in FIG. 4 will be described. This is connected to the display means consisting of the counter JjK sound generation mechanism 4 in the light source device main body Jl, and the film 190
The frame number information is displayed by voice. This voice generation mechanism 41 is connected to a voice call s42 connected to the counter 23, a nine voice storage section 41 and a voice exchange section 44 connected to this voice call s4j, and connected to this voice exchange section 44 via an amplifier 45. Scar 46
It is composed of.

In the case of the above configuration, when the release signal generated by turning on the release switch 20 is counted by the counter 2S, this counter 2
A signal counted by 1 and corresponding to the number of frames of the nine film 19 is called out from the audio storage section 43 by the audio calling section 42, this signal is converted into an audio signal by the audio converting section 44, and further amplified by the amplifying section 45. Information on the number of 190 film frames is output as audio from the speaker 46.

Therefore, even with such a configuration, the sound generation mechanism 4
1 is provided in the main body IJ of the light source device, it is possible to easily check the frame number information of the film 19 as in the first embodiment, and the endoscope camera 9 can be made smaller. can be achieved. In this case, do not take your eyes off the viewfinder of the endoscope camera 9 and remove the film 19.
Since the number of frames can be confirmed, the photographing operation can be carried out smoothly.

FIG. 5 shows a third embodiment. This is the first
The sound generation mechanism 41 of the second embodiment is connected to the configuration of the embodiment, and information on the number of frames of the film 19 is displayed on the LCD display board z9, and the sound output from the speakers 4 and 6 is It has also been reported by.

Even with such a configuration, since the liquid crystal display panel 2jl and the sound generating mechanism 41 are provided within the light source device main body 11, the same effects as in the first and second embodiments can be obtained.

Note that this invention is not limited to the first to third embodiments described above, and it goes without saying that various modifications can be made without departing from the gist of the invention.

As explained above, according to Imei, a display means for displaying information on the number of film frames is provided in the main body of the light source device, so when taking photographs through an endoscope, the number of film frames can be determined can be easily carried out, and
This is advantageous in making the camera more compact.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a side view for explaining photographing with an endoscope, and FIG. 2 is a schematic diagram showing the overall configuration. Configuration diagram, 3rd
The figure is a perspective view showing the main body of the light source device, and Figure 4 is a schematic configuration diagram showing main parts of the second embodiment.%@5 Figure is 1i of the third embodiment.
It is a schematic block diagram which shows 11 parts. 1... Endoscope, 11... Light source device main body, 23...
Counter, 29...Liquid crystal display board (display means), 33
. . . decoder (display means), 41 . . . sound generation mechanism (35! display means). Applicant's agent Patent attorney Takehiko Suzue, Commissioner of the Patent Office
Island 1) Haruki-dono Moan 11. Indication of the case Japanese Patent Application No. 171788/1988 2 - Title of the invention: Speed of light M1 3. Person making the amendment Relationship to the case Patent applicant (03J7) Olin Yasu Optical Industry Co., Ltd. 4, Agent 6, Subject specification 7 of Supplement iE, content of amendment (1) specification, page 11, line 12 and same (2)
In the specification, "amplifier 46" on page 11, line 12 is corrected to "amplifying section 45."

Claims (6)

[Claims] (1) In a light source device for an endoscope, in which a congratulatory device that can take photographs is detachably connected to the main body of the light source device, a signal that is output in conjunction with the photographing operation is input, and steps are taken in accordance with this input signal. A light source device for an endoscope, characterized in that the light source device main body is provided with a counter and display means for displaying the number of frames of film for photographic bodies in conjunction with the counter. (2) The display means is formed of a decoder linked to a counter and a frame number display board that displays the number of frames of the film based on the output signal of the decoder. The light source device for an endoscope according to scope item (1). (3) The endoscope according to claim (1) for a special IFF, characterized in that the display means is a sound generating mechanism that, in conjunction with a counter, displays the number of frames of a photographic film by sound. light source device. (4) The display means includes a decoder that is linked to a counter, a frame number display board that displays the number of frames on the film based on the output signal of the decoder, and an audio that displays the number of frames on the film in conjunction with the counter. The light source device for an endoscope according to item (1) of the scope of the invention, characterized in that it is a light source device comprising a generating mechanism. (5) The light source device for an endoscope according to claim (2), wherein the frame number display board is a liquid crystal display board. (6) Claim No. 1, characterized in that the frame number display board is provided on the front panel of the main body of the light source device (
The light source device for an endoscope according to either item 2) or item (4).