JPH11258735A - Endoscopic film cassette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly start a photographing action by an endoscope camera after a film is loaded and to suppress the consumption of an internal power source. SOLUTION: A short-circuit pattern 7 is fixed to the lower end of the bridge of an endoscopic film cassette 1. When the cassette 1 is loaded, the short- circuited of two contact points of a camera driving control circuit part 34 is executed by the pattern 7. Then, it is detected by a pulse generation circuit 31 that the input of the generation circuit 31 is changed to be High and LOW caused by the short-circuit. Then, a pulse is generated with respect to an initial control circuit 32. By the initial control circuit 32, initialization for the photographing by the camera is executed by quickly recognizing that the cassette 1 is loaded. After the initialization is finished, a reset signal is transmitted to the generation circuit 31. Then. the pulse is stopped by the generation circuit 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope film cassette mounted on an endoscope camera and used for photographing.

[0002]

2. Description of the Related Art In photographing an observation image of an endoscope, an endoscope camera detects the presence or absence of a film, detects film information such as a film type, and shoots a film suitable for the film information until the start of photographing after the film is loaded. It is necessary to perform various operations such as automatic setting of conditions and idle winding of the designated number of frames of the film.

Therefore, conventionally, for example, Japanese Patent Publication No. 3-7584
In the case of a film cassette as disclosed in Japanese Patent Publication No. 9, the internal circuit is activated when the film cassette is loaded into the camera and the camera back cover is closed, the film is wound up, and the presence or absence of the film is detected. If, for example, a film cassette has film information that can be determined, the information is read and the photographing conditions are set according to the film.

[0004]

However, in the case of such a prior art, the electric circuit of the camera is activated only after the back cover of the camera is closed after the film is loaded, and the various operations described above are performed. There is a problem that the burden of the initial operation of the CPU is large, and that the photographing of the endoscope image is delayed.

In order to recognize the film exchange information when the power is turned on when the film is exchanged when the power is turned off, it is necessary to memorize the fact that the film has been exchanged mechanically or to store the information on the internal battery. It is possible to monitor the presence or absence of film by using a mechanical method.However, if the mechanical method is used, the size of the device becomes large. There is a problem that the cycle becomes faster.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides an endoscope film cassette capable of promptly starting shooting with an endoscope camera after loading a film and suppressing consumption of an internal power supply. It is intended to provide.

[0007]

SUMMARY OF THE INVENTION An endoscope film cassette according to the present invention, which can be loaded into an endoscope camera, includes a film supply section and a winding section, and a bridge section connecting the supply section and the winding section. An endoscope film cassette having an electric start-up means for starting an electric circuit provided on the endoscope camera side at a time when the electric circuit performs at least a predetermined initial setting when the cassette is loaded. Is done.

In the endoscope film cassette according to the present invention, when the cassette is loaded, the activating means activates an electric circuit provided on the endoscope camera side at least for a time when the electric circuit performs at least a predetermined initial setting. Thus, it is possible to promptly start photographing with the endoscope camera after loading the film and to suppress consumption of the internal power supply.

[0009]

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

FIGS. 1 to 4 relate to a first embodiment of the present invention. FIG. 1 is a configuration diagram showing an endoscope film cassette from the bottom side, and FIG. 2 is a diagram showing the endoscope film cassette of FIG. FIG. 3 is an external view showing an external view of an endoscope photographing apparatus that captures an endoscope image using the endoscope camera. FIG. 3 is a cross-sectional view showing a plan cross section of the endoscope camera in a state where the endoscope film cassette of FIG. FIG. 4 is a configuration diagram showing a configuration of a camera drive control circuit unit built in the endoscope camera of FIG.

(Structure) As shown in FIG. 2, an endoscope photographing apparatus 11 for photographing an endoscope image using the endoscope film cassette of the present embodiment includes an image processor of an electronic endoscope (not shown). The endoscope camera 1 is connected to the front panel 12 via a camera adapter 13 via a video cable.
4 is attached.

As shown in FIG. 1, an endoscope film cassette 1 of the present embodiment includes a film supply section 2 for storing and supplying a film 6 before exposure, and a film 6 exposed by photography. A film winding unit 3 wound up and stored, a plate-like bridge 4 connecting the film supply unit 2 and the film winding unit 3, for example, and a winding claw of an endoscope camera 14 (see FIG. 2) are engaged with each other. It has a winding engaging portion 5 (see FIG. 3) for performing a winding operation, and a film 6 exposed by exposure. A short circuit pattern 7 is fixed below the bridge 4. The short-circuit pattern 7 is made of, for example, copper foil or gold-plated copper foil.
A conductive member such as a thin metal plate.

The endoscope camera 14, as shown in FIG.
When the taking lens 23 is attached to the front end opening of the lens barrel portion of the camera body 22 constituting the endoscope camera 14, the image forming position of the taking lens 23 is opened, and the endoscope film cassette 1 is loaded. The surface of the film 6 exposed along the bridge 4 faces.

That is, the rear end of the endoscope camera 14 is
4 is provided with a cassette storage section 25 that is opened and closed. The cassette housing section 25 is provided with two housing sections 26 and 27 for housing the film supply section 2 and the film winding section 3 of the endoscope film cassette 1 near both sides of the imaging position of the photographing lens 23, respectively. The film 6 is positioned at the opening of the imaging position of the photographing lens 23 by housing the film supply unit 2 and the film winding unit 3 at 26 and 27, respectively, and the two contact points 28 and 29 are connected to the bridge 4. In addition, as shown in FIG. 4, the portion between the camera body 22 and the outer frame 30 of the endoscope camera 14 has the contacts 28 and 29 described above. A pulse generating circuit 31 for generating pulses, an initial setting circuit 32 for performing initial settings of the endoscope camera 14, and a camera controller for controlling exposure conditions of the endoscope camera 14, and the like. The camera drive control circuit 34 consisting Lumpur circuit 33, etc. are arranged.

A camera drive control circuit section 34 connected to the camera control circuit 33, the initial setting circuit 32, the respective power supply input terminals of the pulse generation circuit 31, and the resistor R.
Is connected to the plus terminal of the external power supply 36, and is connected to the ground terminal of the camera drive control circuit unit 34 which is connected to the ground terminals of the camera control circuit 33, the initialization circuit 32, and the pulse generation circuit 31. Contact 3
7 is connected to the ground terminal of the external power supply 36.

(Operation) Next, the operation of the present embodiment configured as described above will be described.

When the film cassette 1 has not been loaded in the endoscope camera 14, the camera drive control circuit 34
Are in an open state, and the input of the pulse generating circuit 31 via the resistor R connected to the plus terminal of the external power supply 36 is High.

Next, when the film cassette 1 is loaded into the endoscope camera 14, the camera drive control circuit 34
The two contacts 28 and 29 are short-circuited by the short-circuit pattern 7 of the film cassette 1, and the input of the pulse generation circuit 31 changes from the High state to the Low state. This change is detected by the pulse generation circuit 31 and a pulse is generated for the initial control circuit 32.

Upon receiving this pulse, the initial setting circuit 32 quickly recognizes that the film cassette 1 has been loaded, performs initial settings for photographing with the camera, and after completing the initial settings, sends a signal to the pulse generating circuit 31. By sending a reset signal, the pulse generation circuit 31 stops the pulse.

(Effects) As described above, in this embodiment, when the film cassette 1 is loaded, the initial setting circuit 32 is automatically activated, and recognition of the film loading, initial setting for photographing, and the like are performed promptly. Therefore, the effect of shortening the time from film change to shooting can be obtained.

The short-circuit pattern 7 is provided below the bridge 4.
However, the present invention is not limited to this. For example, the short circuit pattern 7 may be provided below or above the film supply unit 2.

FIG. 5 is a configuration diagram showing a configuration of a camera drive control circuit unit incorporated in an endoscope camera according to a second embodiment of the present invention.

Since the second embodiment is almost the same as the first embodiment, only different points will be described, and the same components will be denoted by the same reference numerals and description thereof will be omitted.

(Structure) As shown in FIG. 5, in the camera drive control circuit section 34a of the present embodiment, the plus side contact 35
The positive terminal of the external power supply 36 is connected to the power input terminal of the camera control circuit 33 by the
1 is connected to a power supply input terminal of the storage circuit 42 and the initial setting circuit 32, in which data is not erased even if power is not supplied via the power supply 1 and a relay switch 43. Further, the positive terminal of the external power supply 36 is connected via a diode 44 to a positive electrode of a rechargeable battery 45 which is an internal power supply, a power input terminal of the pulse generation circuit 31 and a resistor R.

The ground terminal of the external power supply 36 is connected to the camera control circuit 3 by the ground contact 37.
3. The storage circuit 42, the initial control circuit 32, the ground terminals of the pulse generation circuit 31, and the negative electrode of the battery 45.

Further, the pulse generation circuit 31 is connected to the relay switch 43 and the camera control circuit 33, the initial control circuit 32 is connected to the storage circuit 42, and the storage circuit 42 is connected to the camera control circuit 33 and the pulse generation circuit 31.

The other structure is the same as that of the first embodiment.

(Operation) Next, the operation of the present embodiment configured as described above will be described.

When the film cassette 1 is inserted into the endoscope camera 14 when the external power supply 36 is off, the pulse generating circuit 31 generates a pulse as in the first embodiment. The generated pulse turns on the relay switch 43, which is normally in the OFF state, so that the initial control circuit 3
After the power of the battery 45 is supplied to the memory circuit 42 and the storage circuit 42, the initial control circuit 32 is driven, the recognition of the film loading and the initialization are performed, and the storage circuit 42 records that the initialization has been performed. The pulse is stopped by sending a reset signal to the pulse generation circuit 31, and the relay switch 43 is turned off.
The FF is performed, and the operations of the initial setting circuit 32 and the storage circuit 42 are also stopped.

(Effects) As described above, according to the present embodiment, when the film cassette 1 is loaded in the endoscope camera 14 when the external power supply 36 is OFF, the battery 45 controls the initial control circuit 32 and the storage circuit. 42 is driven, and after the operation is completed, the power supply to the battery 45 is terminated.
6, when the external power supply 36 is turned on, the load on the initial operation of the microcomputer incorporated in the camera control circuit 33 is small, and the effect is obtained that the photographing can be performed promptly.

In the present embodiment, when the external power supply 36 is turned on, the relay switch 43 is turned on, and the battery 45 is automatically charged. When the film is changed when the power supply 36 is turned on, the recognition and initial setting of the film loading are performed simultaneously with the film loading, so that the photographing can be performed promptly.

[Supplementary note] (Supplementary note 1) An endoscope film cassette that can be loaded into an endoscope camera and has a film supply unit and a winding unit, and a bridge unit that connects the supply unit and the winding unit. An endoscope film provided with an electric starting means for starting an electric circuit provided on the endoscope camera side at a time when the electric circuit performs at least a predetermined initial setting when a cassette is loaded. cassette.

(Additional Item 2) The endoscope film cassette according to Additional Item 1, wherein the activation means is a short-circuit pattern.

(Appendix 3) The endoscope film cassette according to Appendix 2, wherein the short-circuit pattern is provided on the bridge portion.

(Additional Item 4) The endoscope film cassette according to Additional Item 2, wherein the short-circuit pattern is provided below or above the film supply unit.

(Appendix 5) Two contacts connected to the cassette-side short-circuit pattern, a pulse generating circuit for detecting that the two contacts are short-circuited and generating a pulse, and an initial setting for initial setting for photographing An endoscope camera comprising: a control circuit; and a camera control circuit for controlling camera driving.

(Appendix 6) Two contacts connected to the cassette-side short-circuit pattern, a switch for electrically controlling ON and OFF, and an initial control circuit for performing initial setting for photographing when the switch is turned ON. A storage circuit for storing that a film has been loaded when the switch is turned on and that initialization has been performed; and supplying power to at least the initial control circuit and the storage circuit when the switch is turned on. An internal power supply, a pulse generation circuit that turns on the switch when the two contacts are short-circuited and turns off the switch after the memory circuit completes storage, and a camera control circuit that controls camera driving. An endoscope camera characterized in that:

[0038]

As described above, according to the endoscope film cassette of the present invention, when the cassette is loaded, the starting means replaces the electric circuit provided on the endoscope camera with at least a predetermined initial time. Since the setting is activated for the set time, it is possible to quickly start shooting with the endoscope camera after loading the film and to suppress the consumption of the internal power supply.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an endoscope film cassette according to a first embodiment of the present invention from the bottom side;

FIG. 2 is an external view showing an external appearance of an endoscope photographing apparatus for photographing an endoscope image using the endoscope film cassette of FIG. 1;

FIG. 3 is a cross-sectional view showing a plane cross section of the endoscope camera in a state where the endoscope film cassette of FIG. 1 is loaded.

FIG. 4 is a configuration diagram showing a configuration of a camera drive control circuit unit built in the endoscope camera of FIG. 3;

FIG. 5 is a configuration diagram showing a configuration of a camera drive control circuit unit built in an endoscope camera according to a second embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope film cassette 2 ... Film supply part 3 ... Film winding part 4 ... Bridge 5 ... Winding engagement part 6 ... Film 7 ... Short circuit pattern 11 ... Endoscope photographing device 12 ... Front panel 13 ... Camera adapter 14 ... Endoscope cameras 28 and 29 Contact 31 Pulse generation circuit 32 Initial setting circuit 33 Camera control circuit 34 Camera drive control circuit 36 External power supply

Claims (1)

[Claims] 1. An endoscope film cassette that can be loaded into an endoscope camera and has a film supply unit and a winding unit, and a bridge unit that connects the supply unit and the winding unit. An endoscope film cassette provided with an electric starting means for starting an electric circuit provided on the endoscope camera side at least for a time at which the electric circuit performs a predetermined initial setting.