JP2006006515A - Electronic endoscope device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic endoscope device capable of obtaining erected images at all times even in the case of using an optical adapter for which images obtained by the optical adapter are inverted images. <P>SOLUTION: In the electronic endoscope device, a system control part 4 is provided with an optical adapter detection part 25 for detecting the kind of the optical adapter which is a distal end 2, and in the case of connecting the distal end 2 provided with the optical adapter which does not invert the images to an insertion part 1, high level signals are sent from the optical adapter detection part 25 to a CPU 18 and the processing of vertically inverting image data obtained by a CCD 14 is performed corresponding to the high level signals. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic endoscope apparatus that is mainly used for industrial or medical purposes and observes the inside of an engine, the inside of a body cavity, or the like.

Electronic endoscope apparatuses are widely used to observe parts that cannot be directly observed with the naked eye regardless of whether they are industrial or medical. For example, industrial uses include various uses such as quality inspections of airplanes and automobile engines, and inspections of rust and corrosion of water pipes and gas pipes. In addition, as a medical use, for example, it is used for inspection and surgery in a body cavity.
Japanese Patent Application Laid-Open No. 07-194431

In general, since an electronic endoscope apparatus is expensive, the distal end portion (optical adapter) of the insertion portion is used in accordance with the intended application.
The optical adapter includes a direct-viewing type optical adapter for observing an observation target in the direction of the insertion portion and a side-viewing type optical adapter for observing the observation target on the side surface of the insertion portion. The side-viewing type optical adapter is used when, for example, a subject having a small diameter such as a pipe is inspected when there is no space where the tip of the direct-viewing type optical adapter is curved.

  A side-view type optical adapter generally obtains an erect image by reflecting an image obtained through the objective optical system a plurality of times inside the adapter. However, if the diameter of the insertion portion is reduced, the number of reflections is limited. As a result, an upright image cannot be obtained, resulting in an inverted image (an inverted image), and the operability is significantly reduced.

  Furthermore, since the optical adapter that obtains an upright image and the optical adapter that obtains an inverted image are also limited in shape by attaching an identification mark or the like, there is a problem that it is difficult for an operator to visually recognize the image.

  In Patent Document 1, when displaying a treatment site on a plurality of display monitors, an endoscope that can always display an image in the same direction as the treatment site regardless of the position of the surgeon standing with respect to the patient. A mirror device is disclosed.

  The present invention has been made in view of the above-described problems, and the problem to be solved is to always obtain an erect image even when an optical adapter whose image obtained by the optical adapter is an inverted image is used. It is an object to provide an electronic endoscope apparatus capable of performing the above.

  According to the first aspect of the present invention, in the electronic endoscope apparatus that includes the distal end portion that is detachable from the insertion portion and images the observation target by the imaging device, the distal end portion connected to the insertion portion obtains an erect image. A discriminating means for discriminating whether or not the tip portion can be provided, and when the tip portion connected to the insertion portion is a tip portion from which an erect image cannot be obtained, an image obtained by the tip portion is displayed as an erect image. And an electronic endoscope apparatus characterized by comprising:

  According to the first aspect of the present invention, it is determined whether or not the distal end portion connected to the insertion portion can obtain an erect image by the discriminating means, and if no erect image is obtained, the correcting means is obtained. Therefore, even when the image obtained by the tip is an inverted image, it is possible to always obtain an erect image.

  According to a second aspect of the present invention, the discriminating means has identification means for discriminating, at the tip portion, a tip portion that can obtain an erect image and a tip portion that cannot obtain an erect image. The electronic endoscope apparatus according to claim 1, wherein the determination is performed based on the identification unit.

  According to the invention described in claim 2, it is possible for the determination means to determine whether the tip portion can obtain an erect image based on the identification means included in the tip portion. There is an effect that the same effect as that of the described invention can be obtained.

  According to a third aspect of the present invention, there is provided a correction means for correcting an image obtained by the imaging element into an erecting image in an electronic endoscope apparatus that includes a distal end portion detachably attached to the insertion portion and images an observation target by the imaging element. An electronic endoscope apparatus comprising: a switching unit that switches between valid and invalid of the correction unit.

  According to the invention described in claim 3, the same effect as that of the invention described in claim 1 can be obtained.

  As described above, according to the present invention, it is possible to provide an electronic endoscope apparatus that can always obtain an upright image even when an optical adapter in which an image obtained by the optical adapter is an inverted image is used. It becomes possible.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9.
FIG. 1 is a block diagram illustrating a configuration example of the electronic endoscope apparatus according to the present embodiment.
The electronic endoscope apparatus shown in FIG. 1 captures an elongated cylindrical insertion portion 1 to be inspected, for example, into an engine of an aircraft or automobile, and a portion to be inspected provided at the tip of the insertion portion. The distal end 2 provided with an imaging unit, the bending control unit 3 that performs control for bending the insertion unit 1, and the control of each process of the electronic endoscope apparatus shown in FIG. The system control unit 4 for performing image processing and the like, the operation unit 5 for performing operations such as an imaging instruction to the imaging unit provided in the distal end unit 2 and a bending instruction to the bending control unit 3, and the distal end unit 2 It includes at least a display unit 6 for displaying an image picked up by the provided image pickup unit, a menu for performing image processing, and the like.

Hereinafter, each part shown in the figure will be described with reference to FIGS.
FIG. 2 is a diagram illustrating a configuration example of the insertion unit 1 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.

  The insertion unit 1 shown in the figure is imaged by a CCD driving wiring member 7 for driving, for example, a CCD 14 of an imaging unit provided at the distal end 2 connected to one end of the insertion unit 1 and the CCD 14 which is an imaging unit. Identify the image data transmission wiring member 8 for transmitting an image as an image signal to the system control unit 4, the actuator 9 for bending the insertion portion 1 and the distal end portion 2, and the type of the optical adapter that is the distal end portion 2. Optical adapter recognizing wiring member 10 for achieving the above and at least an external film 11 made of a multi-layered material such as stainless steel that has excellent heat resistance and is difficult to conduct heat.

  The CCD driving wiring member 7 is connected to a CCD 14 which is an image pickup unit provided at the distal end portion 2, and the CCD 14 obtains electric power necessary for driving through the CCD driving wiring member 7. Further, a control signal for controlling the CCD 14 from the system control unit 4 and the operation unit 5 is also supplied to the CCD 14 via the CCD driving wiring member 7.

  The image data transmission wiring member 8 is connected to a CCD 14 which is an image pickup unit provided in the distal end portion 2 in the same manner as the CCD driving wiring member 7, and an image captured by the CCD 14 passes through the image data transmission wiring member 8. It is sent to the system control unit 4.

  The actuator 9 is for bending the insertion portion 1 and the distal end portion 2 and is controlled by the bending control portion 3. For example, when the operator operates the operation lever 28 provided in the operation unit 5, a control signal is sent to the bending control unit 3 through the system control unit 4, and the bending control unit 3 extends the actuator 9 in accordance with the control signal. Then, the insertion portion 1 and the distal end portion 2 are bent into desired shapes.

The optical adapter recognizing wiring member 10 is used to transmit a signal corresponding to the optical adapter that is the distal end portion 2 to the CPU 18 provided in the system control unit 4.
Although not shown, the insertion unit 1 is composed of, for example, an optical fiber bundle for transmitting white light emitted from a light source provided in the system control unit 4 to the distal end portion 2 and irradiating the observation target. A light guide cord is also provided.

FIG. 3 is a diagram illustrating a configuration example of the distal end portion 2 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.
The tip 2 shown in FIG. 2A is detachably connected to one end of the insertion part 1 shown in FIG. 2, and an objective optical system 12 including an objective lens and the like, and an image obtained through the objective optical system 12. At least a prism 13a for reflecting the image, and a CCD 14 as an imaging unit for capturing an image of an observation object obtained via the objective optical system 12 and the prism 13a.

  The image of the observation target obtained through the objective optical system 12 is reflected by the inclined surface a of the prism 13a and projected onto the CCD 14 that is an imaging unit. Therefore, the image of the observation target imaged by the CCD 14 is an image (inverted image) that is vertically symmetric with respect to the actual image of the observation target.

An image picked up by the CCD 14 serving as the image pickup unit is sent to the system control unit 4 via the image data transmission wiring member 8 connected to the CCD 14.
The tip 2 shown in FIG. 2B is detachably connected to one end of the insertion part 1 shown in FIG. 2, and an objective optical system 12 including an objective lens and an image obtained via the objective optical system 12. At least a prism 13b and a prism 13c for reflecting the image, and a CCD 14 which is an imaging unit for capturing an image of an observation target obtained through the objective optical system 12, the prism 13b and the prism 13c.

  The image of the observation object obtained through the objective optical system 12 is reflected by the inclined surface b of the prism 13b, further reflected by the inclined surface c of the prism 13c, and projected onto the CCD 14 as an imaging unit. At this time, the image of the observation object obtained through the objective optical system 12 is inverted upside down by being reflected by the prism 13b, and further inverted upside down by being reflected by the prism 13c and projected onto the CCD 14. Therefore, the image of the observation target imaged by the CCD 14 is an erect image.

An image picked up by the CCD 14 serving as the image pickup unit is sent to the system control unit 4 via the image data transmission wiring member 8 connected to the CCD 14.
2A and 2B also include a light irradiation hole for irradiating the observation target with white light emitted from a light source provided in the system control unit 4 described in FIG. Yes.

FIG. 4 is a diagram illustrating a configuration example of the bending control unit 3 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.
The bending control unit 3 shown in the figure includes a motor 15 connected to one end of a wire called an angle wire included in the actuator 9, an IC 16 for driving the motor 15, and a motor 15 for controlling the motor 15 via the IC 16. And at least a microcomputer 17.

  When the operator operates, for example, the operation lever 28 of the operation unit 5, a signal corresponding to the operation amount is transmitted from the operation unit 5 to the CPU 18 provided in the system control unit 4, and further, the CPU 18 is transmitted from the operation unit 5. A control signal corresponding to the signal is transmitted to the microcomputer 17.

  The microcomputer 17 rotates one of the two motors 15 shown in the figure based on a control signal from the CPU 18 (for example, a stepping motor is used as the motor 15 and the microcomputer 17 or the IC 16 It is rotated by applying a pulse signal corresponding to the control signal), and the angle wire provided in the actuator 9 is pulled in the wire axis direction to bend the insertion portion 1.

FIG. 5 is a block diagram illustrating a configuration example of the system control unit 4 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.
The system control unit 4 shown in FIG. 1 is a decoding IC 19 that decodes an image signal sent from the CCD 14 at the tip 2, a memory IC 20 that temporarily stores image data decoded by the decoding IC 19, and an instruction from the CPU 18. For example, a graphic IC 21 that creates image data such as a menu for processing an image acquired by the CCD 14 and a signal of the image data stored in the memory IC 20 while being synchronized with a signal of the image data generated by the graphic IC 21 are superposed. The FPGA 22 for sending to the impose IC 23, the superimpose IC 23 for superimposing the image data sent from the memory IC 20 and the image data sent from the graphic IC 21 via the FPGA 22, and the superimposition IC 23 The encoding IC24 for encoding image data, and includes at least an optical adapter detection unit 25 for detecting the type of the optical adapter is the tip portion 2.

  An image signal (for example, YC signal (Y = luminance signal, C = color difference signal)) captured by the CCD 14 provided at the distal end portion 2 is input to the decode IC 19 via the image data transmission wiring member 8 shown in FIG. Is done. The decode IC 19 A / D converts this signal and digitizes the image data.

Image data digitized by the decode IC 19 is sent to the memory IC 20 via the FPGA 22 and temporarily stored therein.
For example, in accordance with the software for controlling the electronic endoscope apparatus according to the present embodiment, the CPU 18 adjusts the brightness and white balance of the image data captured by the CCD 14 and the image data captured by the CCD 14 and the captured image. An instruction is given to the FPGA 22 to superimpose image data on the menu screen relating to processing such as storage and reproduction of data (still images and moving images).

  At the same time, the CPU 18 adjusts the brightness and white balance of the image data captured by the above-described CCD 14 with respect to the graphic IC 21, and saves and plays back the captured image data (still images and moving images). Directs generation.

  In accordance with the instruction from the CPU 18 described above, the graphic IC 21 generates image data for the menu screen and sends the generated image data to the superimpose IC 23. At the same time, the FPGA 22 transmits the image data stored in the memory IC 20 to the superimpose IC 23 while synchronizing with the image data signal sent from the graphic IC 21 to the superimpose IC 23.

  The superimpose IC 23 performs a process of superimposing the image data from the FPGA 22 and the image data from the graphic IC 21 so as to be arranged at a predetermined position. The image data superimposed by the superimpose IC 23 is sent to the display unit 6 via the encoding IC 24.

FIG. 6 is a diagram illustrating a configuration example of the optical adapter detection unit 25 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 5.
FIG. 2A shows a configuration example of the optical adapter detection unit 25 in the case where the distal end portion 2 includes an optical adapter that reverses the image. As shown in FIG. 2A, the optical adapter that inverts the image is provided with a conductor 35 that is connected to the optical adapter recognizing wiring member 10 provided in the insertion portion 1 and is in a short-circuit state.

  One of the optical adapter recognition wiring members 10 is connected to, for example, a power source (power supply voltage: Vdd) via a resistor, and further connected to the CPU 18 provided in the system control unit 4. The other of these is connected to the GND line.

  Accordingly, when the distal end portion 2 having the optical adapter for reversing the image is connected to the insertion portion 1, the optical adapter recognizing wiring member 10 is short-circuited at the distal end portion 2 and the insertion portion 1. A low level signal is sent to the CPU 18 included in the.

When the CPU 18 receives the low level signal from the optical adapter recognizing wiring member 10, the CPU 18 recognizes that the connected tip portion 2 includes an optical adapter that reverses the image.
FIG. 2B shows a configuration example of the optical adapter detection unit 25 in the case where the distal end portion 2 includes an optical adapter that does not invert the image. As shown in FIG. 6B, the optical adapter that does not invert the image is connected to the optical adapter recognizing wiring member 10 provided in the insertion portion 1 as shown in FIG. The conductor 35 is not provided.

  Similarly to FIG. 6A, one of the optical adapter recognizing wiring members 10 is connected to, for example, a power supply (power supply voltage: Vdd) via a resistor, and further connected to a CPU 18 provided in the system control unit 4. The other end of the optical adapter recognizing wiring member 10 is connected to the GND line.

  Therefore, when the distal end portion 2 including the optical adapter that does not invert the image is connected to the insertion portion 1, the optical adapter recognizing wiring member 10 is open in the distal end portion 2 and the insertion portion 1, so that the system control portion 4 A high level signal signal is sent to the CPU 18 included in the.

When the CPU 18 receives a high level signal from the optical adapter recognizing wiring member 10, the CPU 18 recognizes that the connected tip portion 2 includes an optical adapter that does not invert the image.
FIG. 7 is a diagram illustrating an outline of a configuration example of the operation unit 5 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.

  The operation unit 5 shown in the figure operates a power source for supplying power to the electronic endoscope apparatus according to the present embodiment and its power switch 26 and a menu displayed on the display unit 6 shown in FIG. 5, for example. Then, a switch 27 which is a group of switches for realizing various functions such as image processing, a bending operation of the insertion portion 1 and the distal end portion 2, and an operation lever 28 for operating the menu described in FIG. At least a microcomputer 29 that instructs the CPU 18 in response to signals from the switch 27 and the operation lever 28 is provided.

When the operator presses the power switch 26, for example, to turn it on, electric power is supplied to each part of the electronic endoscope apparatus and the apparatus becomes operable.
Further, the operator operates the electronic endoscope apparatus according to the present embodiment by operating the switch 27 and the operation lever 28.

  For example, when the switch 27 is pressed and turned on, a high level signal is input to the microcomputer 29 from the pressed switch. The microcomputer 29 performs processing corresponding to a high level signal from the switch 27 (for example, an instruction for zoom processing or imaging processing on the tip 2, menu display processing on the display unit 6, etc.) in the CPU 18 included in the system control unit 4. Instruct.

  Similarly, for the operation lever 28, for example, the microcomputer 29 detects a resistance value corresponding to the tilt of the lever up and down, left and right, and instructs the CPU 18 provided in the system control unit 4 to perform processing corresponding to the resistance value. For example, when the insertion portion 1 and the distal end portion 2 are curved, when the operator tilts the operation lever 28 to the right, the microcomputer 29 detects the resistance value and the direction of the tilt according to the tilt, and sets the detected resistance value. The CPU 18 in the system control unit 4 is instructed in accordance with the amount of bending and the direction of inclination, and the CPU 18 instructs the bending control unit 3 in the direction of inclination of the operation lever 28 by the amount of bending described above. 2 will be bent.

FIG. 8 is a diagram illustrating a configuration example of the display unit 6 of the electronic endoscope apparatus according to the present embodiment illustrated in FIG. 1.
The display unit 6 shown in the figure is a scaling IC 30 that performs scaling so that the image data sent from the system control unit 4 matches the display size of the monitor 33, and the image data sent from the scaling IC 30 is temporarily used as a frame buffer IC 32. And an output of the image data stored in the frame buffer IC 32 to the monitor 33, and a monitor 33 for displaying the image data sent from the FPGA 31.

  The electronic endoscope apparatus according to the present embodiment further includes an inversion button 34 that is a manual changeover switch for inverting the image sent from the system control unit 4 and displaying the image on the monitor 33.

  In the scaling IC 30, the image data sent from the system control unit 4 is subjected to processing such as enlargement / reduction to a size corresponding to the display area of the monitor 33, and is stored in the frame buffer IC 32 via the FPGA 31.

  Here, FIG. 9 shows the correspondence between the address for storing the image data in the frame buffer IC 32 and the position of the display unit (xy coordinates) where the image data stored at the address is displayed. .

  FIG. 9A shows a case where the operator does not reverse the image data using the reverse button 34 (hereinafter referred to as normal time), and FIG. 9B shows the case where the operator performs the reverse button 34. For example, a case where image data is inverted by pressing the button (hereinafter referred to as inversion) is shown.

  FIG. 9A shows a case where the resolution of the monitor 33 is 1024 × 768 (pixels). The image data sent from the scaling IC 30 is stored in the frame buffer IC 32 by the FPGA 31. At this time, the continuous area from the start address 00000h to BFFFFh of the frame buffer IC 32 is displayed on the monitor 33. Are stored in the order from left to right and from top to bottom. That is, the coordinates on the monitor 33 are (0, 0), (1, 0), (2, 0), ..., (1023, 0), (0, 1), (1, 1), (2 1), ..., (1023, 1), ..., (0,767), (1,767), (2,767), ..., (1023, 767) in this order. It is stored in the IC 32.

The image data stored as described above is output to the monitor 33 by the FPGA 31 and displayed on the monitor 33.
On the other hand, FIG. 9B shows a case where the resolution of the monitor 33 is 1024 × 768 (pixels), as in FIG. The image data sent from the scaling IC 30 is stored in the frame buffer IC 32 by the FPGA 31. At this time, the continuous area from the head address 00000h to BFFFFh of the frame buffer IC 32 is displayed on the monitor 33. Are stored in the order from left to right and from bottom to top. That is, the coordinates on the monitor 33 are (0,767), (1,767), (2,767),..., (1023,767), (0,766), (1,766), (2 , 766),..., (1023,766),..., (0,0), (1,0), (2,0),. It is stored in the IC 32.

  The image data stored as described above is output to the monitor 33 by the FPGA 31, and is displayed on the monitor 33 with the image sent from the scaling IC 30 upside down.

In the configuration described above, for example, an image display process when an operator connects an optical adapter that reverses an image to the insertion unit 1 will be described.
An image to be observed is picked up by a CCD 14 that is an image pickup unit via an objective optical system 12 provided in an optical adapter that is a tip part 2. At this time, the CCD 14 obtains an image that is vertically inverted from the image of the actual observation object via the objective optical system 12, so that the image data picked up by the CCD 14 is also the actual observation object. An image is an image that is upside down. The image data picked up by the CCD 14 is sent to the system control unit 4 via the image data transfer wiring material 8.

  On the other hand, when an optical adapter that reverses the image is connected to the insertion unit 1 as shown in FIG. 6A, a low level signal is sent to the CPU 18 of the system control unit 4 via the optical adapter recognition wiring member 10. Sent.

When receiving the low level signal, the CPU 18 instructs the FPGA 22 to invert the image.
The FPGA 22 stores the image data sent from the decode IC 19 via the image data transfer wiring member 10 in accordance with an instruction from the CPU 18 in the memory IC 20 so that the image is inverted.

  At this time, similarly to the description in FIG. 9B, for example, when the resolution of the image data is 1024 × 768 (pixels), the image data sent from the decode IC 19 is stored in the memory IC 20 by the FPGA 22. However, at this time, in the continuous area from the start address 00000h to BFFFFh of the memory IC 20, the order of the image data displayed on the monitor 33 is from left to right and from bottom to top (normal display is from left to right and (In order from top to bottom).

  That is, the coordinates on the monitor 33 are (0,767), (1,767), (2,767),..., (1023,767), (0,766), (1,766), (2 , 766),..., (1023, 766),..., (0, 0), (1, 0), (2, 0),. Will be stored.

  The FPGA 22 transmits the image data stored in the memory IC 20 to the superimpose IC 23 while synchronizing with the image data signal sent from the graphic IC 21 to the superimpose IC 23. A process of superimposing the image data and the image data from the graphic IC 21 so as to be arranged at a predetermined position is performed. The superimposed image data is sent to the display unit 6 via the encoding IC 24 and displayed on the monitor 33.

Through the processing described above, the image data picked up by the optical adapter that reverses the image is displayed on the monitor 33 with the image data turned upside down.
Next, image display processing when an operator connects an optical adapter that does not invert images to the insertion unit 1 will be described.

  An image to be observed is picked up by a CCD 14 that is an image pickup unit via an objective optical system 12 provided in an optical adapter that is a tip part 2. At this time, the image of the image to be observed is not inverted up and down even through the objective optical system 12, so the image data captured by the CCD 14 is an image that matches the actual image of the object to be observed. The image data picked up by the CCD 14 is sent to the system control unit 4 via the image data transfer wiring material 8.

  On the other hand, when an optical adapter that does not invert the image is connected to the insertion unit 1 as shown in FIG. 6B, the CPU 18 provided in the system control unit 4 has a high level via the optical adapter recognition wiring member 10. A signal is sent.

  When the CPU 18 receives the high level signal, it instructs the FPGA 22 to perform normal image transfer processing (or no special instruction may be given to the FPGA 22).

The FPGA 22 stores the image data sent from the decode IC 19 via the image data transfer wiring member 10 in accordance with an instruction from the CPU 18 in the memory IC 20.
At this time, similarly to the description in FIG. 9A, for example, when the resolution of the image data is 1024 × 768 (pixels), the image data sent from the decode IC 19 is sent from the start address 00000h of the memory IC 20 to BFFFFh by the FPGA 22. Are stored in the memory IC 20 in order from the left to the right and from the top to the bottom of the image data displayed on the monitor 33.

  That is, the coordinates on the monitor 33 are (0, 0), (1, 0), (2, 0), ..., (1023, 0), (0, 1), (1, 1), (2 1), ..., (1023,1), ..., (0,767), (1,767), (2,767), ..., (1023,767) in this order. Will be stored.

  The FPGA 22 transmits the image data stored in the memory IC 20 to the superimpose IC 23 while synchronizing with the image data signal sent from the graphic IC 21 to the superimpose IC 23. A process of superimposing the image data and the image data from the graphic IC 21 so as to be arranged at a predetermined position is performed. The superimposed image data is sent to the display unit 6 via the encoding IC 24 and displayed on the monitor 33.

  As described above, the tip 2 having an optical adapter that vertically flips an image captured by the imaging unit and the tip 2 having an optical adapter that does not flip vertically are automatically discriminated, and the image is flipped vertically. When the distal end portion 2 including the optical adapter is attached, it is possible to display the vertically rotated image on the display unit 6.

Therefore, it is possible to prevent the operability from being deteriorated due to the image being inverted upside down.
In addition, by providing the reverse button 34, it is possible to manually rotate the captured image up and down even when the distal end portion 2 does not have the automatic detection function shown in FIG.

  Further, in this embodiment, FIG. 6 shows a case where the distal end portion 2 provided with the optical adapter for image reversal is provided with the conductive wire 35 and the distal end portion 2 provided with the optical adapter for not image reversal is not provided with the conductive wire 35. However, the distal end portion 2 including the optical adapter that does not invert the image may include the conducting wire 35, and the distal end portion 2 including the optical adapter that inverts the image may not include the conducting wire 35.

  Furthermore, the configuration of the optical adapter detection unit 25 is not limited to the configuration shown in FIG. For example, a configuration in which a concave portion or a convex portion is formed inside the distal end portion 2 and the optical adapter can be identified by optically detecting the presence or absence of the shape may be used. 1 includes a switch that shorts the optical adapter recognizing wiring member 10 when pressed by the convex portion, and the optical adapter recognizing wiring member 10 is short-circuited when the distal end portion 2 and the insertion portion 1 are connected. You may make it the structure which can identify an optical adapter.

It is a block diagram which shows the structural example of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the structural example of the insertion part of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the structural example of the front-end | tip part of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the structural example of the curvature control part of the electronic endoscope apparatus which concerns on a present Example. It is a block diagram which shows the structural example of the system control part of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the structural example of the optical adapter detection part 25 of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the outline | summary of the structural example of the operation part of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the structural example of the display part of the electronic endoscope apparatus which concerns on a present Example. It is a figure which shows the correspondence of the display part of the electronic endoscope apparatus which concerns on a present Example, and the address of the image data stored in a frame buffer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Insertion part 2 ... Tip part 3 ... Bending control part 4 ... System control part 5 ... Operation part 6 ... Display part 7 ... CCD drive wiring material 8 ... Image data transmission wiring material 9... Actuator 10... Optical adapter recognition wiring material 11... External coating 12... Objective optical system 13.
15 ... Motor 16 ... IC
17... Microcomputer 18... CPU
19 Decoding IC
20 ... Memory IC
21 ・ ・ ・ Graphic IC
22 ・ ・ ・ FPGA
23 ・ ・ ・ Superimpose IC
24 ・ ・ ・ Encoding IC
25 ... Optical adapter detector 26 ... Power switch 27 ... Switch 28 ... Operation lever 29 ... Microcomputer 30 ... Scaling IC
31 ・ ・ ・ FPGA
32 ... IC for frame buffer
33 ... Monitor 34 ... Reverse button 35 ... Conductor

Claims (3)

In an electronic endoscope apparatus that includes a distal end portion that can be attached to and detached from an insertion portion, and images an observation target with an image sensor,
A discriminating means for discriminating whether the distal end connected to the insertion portion is a distal end capable of obtaining an erect image;
When the tip connected to the insertion portion is a tip that cannot obtain an erect image, correction means for correcting the image obtained by the tip into an erect image,
An electronic endoscope apparatus comprising:   The discriminating means has discriminating means for discriminating, at the tip portion, a tip portion that can obtain an erect image and a tip portion that cannot obtain an erect image, and performs the discrimination based on the discriminating means. The electronic endoscope apparatus according to claim 1, wherein the electronic endoscope apparatus is performed. In an electronic endoscope apparatus that includes a distal end portion that can be attached to and detached from an insertion portion, and images an observation target with an image sensor,
Correction means for correcting an image obtained by the imaging device into an erect image;
Switching means for switching the validity of the correction means; and
An electronic endoscope apparatus comprising:

Images