JPH07299027A - Light source device - Google Patents

Abstract

PURPOSE:To reduce the number of part items by providing a light receiving signal for receiving a scattered light and generating a signal on a connector receiver to which the connector of an endoscope for receiving the light emitted from a light source in such a manner as to be attachable and detachable, so that the scattered light is interrupted and received according to the attachment and detachment of the connector receiver CONSTITUTION:A light source device in an endoscope, which supplies an illuminating light to the endoscope, has, on the surface, a connector receiver 1 to which a scope connector 2 provided on the end part of an universal cord 26 extended from the endoscope is attachably and detachably connected. The scope connector 2 has a light guide 2a on the end part, which is opposed to a light source lamp in the light source device to guide the illuminating light. The connector receiver 1 has a scope insert hole 3 to which the light guide 2a is inserted on a substantially cylindrical receiving part 1b, a scattered light passing hole 4 communicating with the scope insert hole 2 through a key groove 3a is provided on the side part of the receiving part 1b, and a light emitting element 7 is arranged on one end of the scattered light passing hole 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source device having a scope detecting means.

[0002]

2. Description of the Related Art In the field of endoscopes, various endoscopes have been proposed and are actually used. This endoscope is connected to a light source device that supplies illumination light and a video processor that receives an output signal of an electronic endoscope and converts it into a standard video signal, and constitutes an endoscope device. Some devices to which the endoscope is connected are provided with a scope detection mechanism for detecting attachment / detachment of the endoscope.

As shown in FIG. 5, there is a conventional scope detecting mechanism provided in the light source device and the scope. In this scope detection mechanism, the scope 1 has a protrusion 1
0, the protruding portion 10 pushes the slide member 12 assembled to the connector receiver 11 in the light source device main body, and the plate member 13 attached to the upper portion of the slide member 12 interlocks with the insertion of the scope 9 and the photodiode 14 Block off. With the above configuration, the insertion of the scope 9 is detected.

When the scope 9 is removed, the elastic body 15
The slide member 12 is positioned at the position shown in FIG. 5 by the pressing member 16 and the plate member 13 is disengaged from the photodiode 14. In this way, the removal of the scope 9 is detected, and the presence / absence of attachment / detachment of the scope is detected. The above-described conventional detection mechanism is not a structure capable of detecting various types of scopes.

Conventionally, in the endoscope apparatus, the operator sets the dimming level, the switching of the photometry, the intensity of the enhancement, the on / off of the AGC (auto gain control), and the adjustment of the color tone, as required by the operator. I was switching with a panel switch. Since the operation on the panel is troublesome, it has been proposed that the endoscope operation unit is provided with a switch.

However, since the number of switches is limited, it is not possible to provide all the panel switches in the endoscope operation section. Therefore, it is necessary to operate the panel switch during the operation of the endoscope, and the operation must be interrupted, resulting in poor workability.

[0007]

In the conventional example, as shown in FIG. 5, the connector receiver 11, the slide member 12, and the plate member 1 are provided.
3, the cost of the member was high due to the increase in the number of members such as the elastic body 15 and the pressing member 16 and the complicated shape.

Further, it is necessary to fix the slide member 12 and the plate member 13 and to press the slide member 12, the plate member 13 and the elastic body 15 inward while fixing the pressing member 16 to the connector receiver 11, resulting in an increase in the number of assembling steps. Was there. In addition, the conventional one has not a structure capable of detecting a wide variety of scope types.

The present invention has been made in view of the above circumstances, and provides a light source device capable of detecting the attachment / detachment of an endoscope while reducing the cost of members and the number of assembly steps by reducing the number of parts and simplifying the shape of parts. The purpose is to do.

[0010]

A light source device of the present invention is a light source device having a light source for emitting light and a connector receiver to which a connector of an endoscope for receiving the light emitted by the light source is detachably mounted. The connector receiver has a light receiving unit that receives the scattered light generated by the light source and is scattered inside the device to generate a signal.
It is arranged so that the scattered light is blocked or received by the attachment and detachment of the connector receiver.

[0011]

In the structure of the present invention, the presence / absence of attachment / detachment of the endoscope can be detected by utilizing the scattered light in the light source device to detect the presence / absence of the scattered light reaching the light receiving means by the attachment / detachment of the endoscope connector. It is possible to reduce the number of parts and the number of assembling steps because only the light receiving means and the simple structure for blocking the light reaching the light receiving means need to be detected.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to a first embodiment of the present invention, FIG. 1 is an external view including a scope connecting portion of an endoscope light source device, FIG. 2 is a perspective view of a connector receiver and a scope connector,
FIG. 3 is a cross-sectional view of a connector receiver including a scattered light passage hole.

The light source device 25 shown in FIG. 1 has the scope detection mechanism of this embodiment and supplies illumination light to the endoscope. The light source device 25 has, on its surface, a connector receiver 1 to which a scope connector 2 provided at an end of a universal cord 26 extending from the endoscope is detachably connected. At the end of the scope connector 2, the end of the light guide 2a inserted through the inside of the endoscope protrudes from the tip of an insertion portion (not shown). The light guide 2a faces a light source lamp (not shown) arranged in the light source device 25, receives illumination light from its incident end, and transmits it to the tip side. Further, the light source device 25 has an operation panel 27 arranged on the surface thereof.

FIG. 2 shows how the scope connector 2 is inserted into the connector receiver 1 provided in the light source body. The connector receiver 1 has a base portion 1a fixed to the light source device body, and a substantially cylindrical receiving portion 1b which is integrally connected to the base portion 1a, for example.
The receiving portion 1b has a scope insertion hole 3 penetrating in the longitudinal direction thereof and through which the light guide 2a of the scope connector 2 is inserted. The scope insertion hole 3 is provided with a key groove portion 3a that fits with a key protrusion 2b provided on a part of the outer circumference of the scope connector 2. Illumination light from the light source lamp is inserted into the scope insertion hole 3.

A scattered light passage hole 4 is provided on the side of the receiving portion 1b.

As shown in the sectional view of FIG. 3, the scattered light passage hole 4 of the scope receiver 1 intersects with the key groove portion 3a arranged substantially in the center of the receiving portion 1b, and is provided on the substantially opposite side. It penetrates the element placement hole 5. A light receiving element 7 is provided in the element placement hole 5 such that its light emitting portion faces the scattered light passage hole 4. The light receiving element 7 receives light and performs photoelectric conversion, and this output is used as a scope detection signal, for example, a CPU (not shown) of the light source device.
Etc.

With the above structure, the connector receiver 1 is irradiated with scattered light obtained by scattering the illumination light from the light source lamp inside the light source device. A part of such scattered light is generated when the scope connector 2 is not inserted into the connector receiver 1.
The light passes through the scattered light passage hole 4 and always strikes the light receiving element 7.

When the scope connector 2 is inserted into the scope insertion hole 3, the key convex portion 2b is inserted into the key groove portion 3a,
The scattered light passage hole 4 is blocked. Therefore, the light receiving element 7 is shielded from scattered light and detects the insertion of the scope connector 2. When the scope connector 2 is removed from the scope insertion hole 3, the key protrusion 2b is removed from the key groove 3a and the scattered light passage hole 4 communicates with the light receiving element 7, so that the scattered light reaches the light receiving element 7. Therefore, the scattered light is applied to the light receiving element 7 to detect the removal of the scope connector 2.

In this embodiment, the key groove 3 of the key protrusion 2b is formed.
By detecting the insertion / removal into / from a, the insertion / removal of the scope connector 2 into / from the connector receiver 1 can be detected. Further, in this embodiment, the number of parts can be reduced, the structure can be simplified, the material cost can be reduced, and the number of assembling steps can be reduced.

FIG. 4 is a perspective view of a connector receiver and a scope connector according to the second embodiment of the present invention.

The endoscope light source device in this embodiment is also shown in FIG.
It has the same external configuration as that of the above, but the connector receiver is replaced with that shown in FIG. Other configurations and operations similar to those of the first embodiment are designated by the same reference numerals, description thereof will be omitted, and only different points will be described.

The scope connector 2 is detachably inserted and fitted into the connector receiver 20 provided in the light source body shown in FIG.

The connector receiver 20 has the key groove portion 3
The first point is that the scope insertion hole 3 having a is formed, and the scope connector 2 is provided with the key protrusion 2b.
It is similar to the embodiment. The connector receiver 20 of this embodiment is
In contrast to the first embodiment having one scattered light passage hole and one light receiving element, a plurality of scattered light passage holes 8 and a plurality of light receiving elements corresponding to each of the scattered light passage holes 8 are provided. 7 are arranged in the same manner as in FIG.

With the above-described structure, when the key projection 2b of the connector 2 is inserted into and removed from the key groove 3a, scattered light is blocked or passes through and is irradiated onto the light receiving element 7, whereby the scope connector 2 Detects insertion and removal.

Since the number of the scattered light passage holes 8 of the connector receiver 20 is plural, by changing the insertion direction length r of the key protrusion 2b of the scope connector 2 for each type of endoscope, the scattered light passage The number of scattered light that passes through the holes and the scattered light that is blocked can be varied. Therefore, in the present embodiment, a plurality of detection signals differ according to the light receiving states of the plurality of light receiving elements 7, and this can be used as, for example, a kind of code to notify the difference in the type of endoscope.

In this embodiment, like the first embodiment, it is possible to reduce the member cost and improve the assembling property. In addition to this, in this embodiment, the number of scattered light passage holes and the number of light receiving elements are plural, and by changing the insertion direction length r of the key convex portion 2b,
It is possible to detect the insertion and removal of the endoscope as well as the type of the endoscope.

The key protrusion 2b of the connector 2 is formed in a plate shape in the illustrated example, but in the middle thereof,
A passage hole may be provided at a position corresponding to any of the scattered light passage holes 8 or a part thereof may be cut out. With this configuration as well, the type of endoscope can be similarly detected.

Next, a third embodiment will be described. Figure 6
8 to 10 relate to the third embodiment, FIG. 6 is a block diagram of the endoscope apparatus, FIG. 7 is an explanatory diagram of viewpoint detection, and FIG. 8 is an explanatory diagram of viewpoints and areas set in an image.

The endoscope device 40 of this embodiment includes an endoscope body 41 to be inserted into the body, a processing device 42, an eye camera 43 for capturing the movement of the eyes 38a of the operator 38, and an observation monitor 39. It is composed of.

The endoscope body 41 has a light guide (hereinafter referred to as LG) 44 for transmitting observation light to a subject, and a solid-state image sensor 45 for converting a subject image into an electric signal.

The processing unit 42 includes a lamp 46 for emitting observation light, a lens 47 for condensing the emitted light of the lamp 46 at the incident end of the LG 44, and a diaphragm 48 for increasing or decreasing the amount of light incident on the LG 44. , A drive circuit 49 for outputting a drive signal to the solid-state imaging device 45, a video processing circuit 50 for inputting an output signal of the solid-state imaging device 45 to generate a color signal and a luminance signal, and an output of the video processing circuit 50. Gain control amplifier (hereinafter referred to as GCA) 5 that amplifies with a gain according to the signal input and supplied to the control terminal 5
1 and a matrix circuit 52 which receives the output of the GCA 51 and converts it into a television signal.

Further, the processing device 42 receives the output of the eye camera 43 and associates the position of the viewpoint with the position on the observation monitor 39, and the viewpoint position output by the viewpoint detection circuit 53. The area extraction circuit 54 that extracts the luminance signal output from the video processing circuit 50 within a predetermined range around
A gain examining circuit 55 that determines the gain of the CA 51 and outputs it to the control terminal of the GCA 51, and the area extracting circuit 5
4 has a photometric method determination circuit 56 for selecting the peak or average photometric method at the output of 4 and a reference signal generation circuit 57 for determining a reference signal for determining the dimming level at the output of the area extraction circuit 54. is doing.

Further, the processing device 42 inputs the luminance signal output from the video processing circuit 50, switches the integration time constant of the luminance signal in accordance with the output of the photometry system determination circuit 56, and the reference signal generation circuit 57. Of the diaphragm 48 so that the level obtained by integrating the reference signal and the luminance signal output by
A dimming circuit 58 for driving the light source, and a gain examining circuit 55, a photometric method determining circuit 56 when the viewpoint is not settled at a fixed place within a prescribed time by looking at the output of the viewpoint detecting circuit 53,
It has a CPU 59 for instructing to hold the respective outputs of the reference signal generating circuit 57, and a superimposing circuit 60 for superimposing the character signal output by the CPU 59 on the output signal of the matrix circuit 52.

The operation of this embodiment will be described with reference to FIGS. In the apparatus of this embodiment, after the power is turned on, first, the CPU 59 causes the character to be adjusted by the CPU 59 so that the position of the viewpoint on the monitor 39 and the position of the pupil imaged by the eye camera 43 are matched to increase the accuracy of the detection position of the viewpoint detection circuit 53. The signal is output to the superposition circuit 60. Then, as shown in FIG. 7A, a cursor is displayed in the upper left corner on the monitor 39.

When the operator 38 visually checks the cursor on the monitor 39, an image as shown in FIG. 7B is obtained by the eye camera 43. That is, assuming that the output of the eye camera 43 is displayed on the screen, the pupil is projected on the upper right side. Next, the CPU 59 displays a cursor on the lower right corner of the monitor 39 as shown in FIG. 7 (c). When the operator 38 views the cursor, the eye camera 43 obtains an image as shown in FIG. That is, similarly, the pupil is projected on the lower left side. In the viewpoint detection circuit 53, FIG.
7D, the zoom ratio of the image of the eye camera 43 is obtained from the ratio of the difference between the center coordinates of the pupils of the image and the aspect ratio of the image, and the output image of the eye camera 43 is horizontally flipped. By doing this, the viewpoint image of the eye camera 43 and the monitor 3
The viewpoints on 9 match. When the above processing is completed, C
The character signal from PU 59 is no longer output.

First, the gain of the GCA 51 and the dimming circuit 58
The reference signal of is set as a preset value. The metering method is initially set to average metering.

During operation, the eyes 38a of the operator 38 are on the monitor 3
Moving around above 9. If there is a difficult place to see, the eyes 38a of the operator 38 stop there. The viewpoint detection circuit 53
The image is zoomed at the initially set zoom ratio, left-right inverted, and the pupil center coordinates in the video signal are output. If the change in the coordinate position does not exceed the specified time, the CPU 59
Is a gain examining circuit 55, a photometric system determining circuit 56,
The hold signal that controls the holding of the output of the reference signal generation circuit 57 is stopped. That is, when the viewpoint is relatively fixed, the operation described below is performed without holding.

When the hold signal is stopped, each circuit starts operating. The area extraction circuit 54 extracts a luminance signal output from the video processing circuit 50 within a prescribed range centered on the pupil position coordinate data output from the viewpoint detection circuit 53. These states are shown in FIGS. 8 (a) to 8 (c). Figure 8
(A) is an endoscopic image displayed on the monitor 39.
FIG. 8B shows the position of the pupil. And FIG.
As shown in (c), the area extraction circuit 54 extracts the luminance signal in the range surrounded by the broken line.

The extracted luminance signal is input to the gain examining circuit 55, the photometric system determining circuit 56, and the reference signal generating circuit 57. The gain examination circuit 55 integrates the extracted video signal and compares it with the reference signal to determine the gain so that there is no difference. A control signal according to the determined gain is input to the control terminal of the GCA 51, and the luminance signal and the chrominance signal output from the video processing circuit 50 are amplified with the determined gain.

The photometric method determination circuit 56 obtains the ratio between the brightness of the central coordinates and the brightness of the peripheral image from the extracted brightness signal. When the ratio is close to 1, the metering method is average metering. When the ratio is larger than 1 and exceeds the specified range, that is, when the surroundings are brighter, the peak metering method is used. The integration time constant of the dimming circuit 58 is switched by the output signal according to the determined photometric method.

The reference signal generation circuit 57 divides the signal obtained by integrating the extracted luminance signal by the internal reference voltage and outputs the quotient (value) as the reference signal of the dimming circuit 58. The dimming circuit 58 integrates the luminance signal output from the video processing circuit 50 with a time constant according to the output signal of the dimming method determination circuit 56, and outputs the integrated signal and the reference signal output from the reference signal generating circuit 57. A diaphragm drive signal is output according to the difference between
Is controlled to operate so that the signal level after integration matches the reference signal level.

In this way, the observation point of the operator 38 becomes an image suitable for observation, and the eye 3 of the operator 38 after observation is observed.
8a moves away from that point. Then, since the change of the pupil center coordinates in the video signal output from the viewpoint detection circuit 53 is within the specified time, the CPU 59 causes the gain examination circuit 55
Then, a hold signal for controlling the holding of the outputs of the photometric system determination circuit 56 and the reference signal generation circuit 57 is output.

When the operator 38 finds it difficult to observe another observation point, he gazes at that point. Then, following the same procedure as above, the amplification of the video signal, the photometric method,
Switch the dimming level.

As described above, in the present embodiment, the movement of the viewpoint during the observation of the operator is detected, and the operator switches to the setting suitable for the observation only by staring at the point to be observed.
No need to operate the panel during operation, improving operability.

Next, a fourth embodiment of the present invention will be described. 9 and 10 relate to the fourth embodiment, FIG. 9 is a block diagram of the endoscope device, and FIG. 10 is an explanatory diagram of setting switching.

The present embodiment has the endoscope body 41 to be inserted into the body, the processing device 61, the eye camera 43 for picking up the movement of the eyes 38a of the operator 38, and the monitor 39. . The processing device 61 is the processing device 4 of the third embodiment.
It is provided instead of 2. Other configurations and operations similar to those of the first embodiment are designated by the same reference numerals, description thereof will be omitted, and only different points will be described.

The processor 61 of this embodiment is different from the processor 42 of the first embodiment in that the area extracting circuit 54, the gain examining circuit 55, the photometric system judging circuit 56, and the reference signal generating circuit 57 are removed. . Further, the processing device 61 is provided with a CPU 65, a superimposing circuit 64 and a dimming circuit 58A instead of the CPU 59, the superimposing circuit 60 and the dimming circuit 58. Further, the processing device 61 is
An enhanced circuit 62 is interposed and connected between the A51 and the matrix circuit 52, and a character pattern generation circuit 63 is interposed between the CPU 65 and the superposition circuit 64. It is connected.

The enhanced circuit 62 includes the GCA 51.
Of the input signal is input to enhance the contour in accordance with the signal input to the control terminal, and the matrix circuit 52 inputs the output of the enhanced circuit 62 and converts it into a television signal.

The character pattern generation circuit 63 outputs a character signal having a fixed layout as shown in FIG. 10 in response to the instruction signal from the CPU 59. The superimposing circuit 64 includes the matrix circuit 52.
The output signal of the character pattern generation circuit 63 is superimposed on the output signal of the above, and is output to the external observation monitor 39.

The dimming circuit 58A receives the luminance signal output from the video processing circuit 50, integrates it with a time constant according to the photometric method designated by the CPU 65, and outputs the reference signal and the integrated signal level from the CPU 65. The opening and closing of the diaphragm 48 is controlled so that

The CPU circuit 65 outputs to the character pattern generation circuit 63 an instruction signal indicating which character pattern is to be generated, and which character is visually recognized at the viewpoint position output by the viewpoint detection circuit 53. Upon detection, a gain instruction signal is sent to the control terminal of the GCA 51, an enhancement level instruction signal is sent to the control terminal of the enhance circuit 62, a color tone adjustment instruction signal is sent to the control terminal of the matrix circuit 52, or the dimming circuit. A photometry mode switching signal and a reference signal are output to 58A.

The operation of this embodiment will be described with reference to the drawings. In the apparatus of the present embodiment, as in the third embodiment, after the power is turned on, first, the viewpoint position on the monitor 39 and the position of the pupil imaged by the eye camera 43 are made to coincide with each other, and the viewpoint detection circuit 53.
In order to improve the accuracy of the detection position of, the CPU 65 outputs an instruction signal to the character pattern generation circuit 63 to output the character signal as shown in FIG. 7 to the superposition circuit 64. As shown in FIG. 7A, a cursor is displayed on the upper left corner of the monitor 39.

When the operator 38 looks at the cursor,
With the eye camera 43, an image as shown in FIG. 7B is obtained. Next, the CPU 65 instructs the character pattern generation circuit 63 to display the cursor on the lower right corner of the monitor 39 as shown in FIG. 7C. Move this cursor to Operator 3
When viewed by 8, the eye camera 43 obtains an image as shown in FIG. In the viewpoint detection circuit 53, as shown in FIG.
The zoom ratio of the image of the eye camera 43 is obtained from the ratio of the difference between the center coordinates of the pupils of the images of (b) and FIG. 7 (d) and the vertical and horizontal directions of the image, and the output image of the eye camera 43 is horizontally inverted. By doing so, the viewpoint image of the eye camera 43 and the viewpoint on the monitor 39 match.

Upon completion of this processing, the CPU 65 causes the CPU of FIG.
The character pattern generation circuit 63 is instructed to output the character pattern shown in 0 (a). The output signal of the character pattern generation circuit 63 is the matrix circuit 5
2 is output in synchronization with the output TV signal, and the superimposing circuit 64 superimposes the character signal on the TV signal as shown in FIG.

First, the gain of the GCA 51, the enhancement level of the enhancement circuit 62, the color tone of the matrix circuit 52, and the reference signal of the dimming circuit 58A are set as preset values. The metering method is initially set to average metering.

During operation, the eyes 38a of the operator 38 are on the monitor 3
Moving around above 9. If there is a difficult-to-see portion, the operator 38 looks at the character of the setting that he wants to improve. Eyes 3 of operator 38
8a stops there. The viewpoint detection circuit 53 is zoomed at the initially set zoom ratio and horizontally reversed, and outputs the pupil center coordinates in the video signal. When the change in the coordinate position does not occur for the predetermined time or longer, the CPU 65 blinks the character signal in order to make the operator 38 confirm whether or not the character signal detected as being gaze is correct. If the operator 38 has no problem in the confirmation contents, the operator 38
Gaze at the upper left character above 9. CPU65
When it is determined that the pupil position coordinate data output by the viewpoint detection circuit 53 matches the upper left character position, the character pattern signal corresponding to each setting content is output.
FIG. 10A shows an example of a displayed character. As characters, "square" (upper right is called black square in the figure) on the upper right, "gain" and "color tone" on the left side, "enhanced" and "dimming" on the right side.
Is displayed.

For example, when trying to change the gain setting, the character "gain" on the left side of the screen of FIG. 10A is viewed until blinking occurs. When the blinking occurs, look at the "black square" character displayed above it.

When the CPU 65 judges that the "black square" character is seen in the output data of the viewpoint detection circuit 53, the CP is outputted so as to output the character pattern shown in FIG. 10 (b).
U65 instructs the character pattern generation circuit 63.
To determine which character is seen, the CPU 6
5 is performed because the output data of the viewpoint detection circuit 53 does not change for a specified time or longer.

When the operator 38 wants to increase the gain, he keeps looking at the lower left triangle on the screen shown in FIG. 10B until it starts blinking. The CPU 65 judges from the coordinate data output from the viewpoint detection circuit 53 that the operator 38's viewpoint is watching the character ▲ for a specified time or longer, intermittently outputs the character signal ▲, and blinks on the monitor 39. Let

If the blinking character is what the operator desires, the operator 38 looks at the "black square" character in the upper left of the monitor 39. When the operator 38 sees the "black square" for a predetermined time or longer by the output of the viewpoint detection circuit 53, the CPU 6
5 outputs a gain-up instruction signal to the GCA 51, and G
The CA 51 amplifies the luminance signal and the color signal output from the video processing circuit 50.

When the processing is completed, the CPU 65 causes the character pattern generation circuit 63 to output the pattern image shown in FIG.

Next, when the operator 38 wants to change the color tone, the procedure similar to that for changing the gain is first described with reference to FIG.
Look at the letter "color" in (a) until it starts blinking.
When the character character starts blinking, the "black square" at the upper left of the monitor 39 is seen. When the CPU 65 continues to watch for the specified time defined by the CPU 65, the CPU 65 outputs the character pattern shown in FIG.
Give instructions to 3. The output signal of the character pattern generation circuit is superposed on the television signal by the superposition circuit 64.
The image shown in (c) is output. In the illustrated example, "color tone" indicating that the screen is a color tone control screen and characters such as ▲ and ▼ for controlling the increase and decrease of the blue and red color tones are displayed.

The operator 38 changes the color tone by increasing or decreasing the balance of red or blue. For example, if the user wants to increase the red color, he / she continues to watch the character ▲ under the character “red” on the right side of the monitor 39 until the blinking starts. After the blinking is started, keep looking at the upper left "black square" until the character pattern on the screen changes to that shown in FIG. When the CPU 65 determines from the coordinate data output from the viewpoint detection circuit 53 that the viewpoint does not move from the character position of the "black square" for the specified time, the control terminal of the matrix circuit 52 increases the gain of the red signal component by one step. Give instructions. In the present embodiment, the increase / decrease of the color tone is performed by dividing the maximum modulation amount into a plurality of stages and performing each one stage. The blue color adjustment is performed in the same manner. The operator 38 repeats the above operation until the desired color tone is obtained.

Next, when the operator 38 wants to change the light control, the character "light control" on the right side of the monitor 39 in FIG. 10A is continuously watched until the blinking starts.

If the characters that start blinking are different,
Continue looking at the character with the desired settings again without looking at the "black square" character.

When the operator 38 desires to set the "dimming" and visually checks the "black square" character, the CPU 65
The character pattern circuit 63 is instructed to change the character pattern as shown in FIG.

When the operator 38 wants to change the photometric method, he or she continues to look at the desired character of either "peak" or "average" on the left side of the monitor 39 until the blinking is started.

When the desired character starts blinking, the character "black square" on the upper left of the monitor 39 is continuously watched.

When the setting is switched, the character pattern changes to the image shown in FIG.

To change the dimming level, see FIG. 10 (d).
The desired characters ▲ and ▼ on the right side of the monitor 39 are visually observed.

The enhancement level is switched by switching to the setting screen by observing the "enhance" character on the screen of FIG. 10A in the same procedure as the gain switching. Characters ▲ and ▼ for level increase / decrease are displayed on the setting screen as in the case of the gain in FIG.

As described above, in the present embodiment, the movement of the viewpoint of the operator 38 during the observation is detected, and the operator 38 displayed on the monitor 39 just stares at the desired character and the setting suitable for the observation is set. Since it switches to, there is no need to operate the panel during operation, improving operability.

If a character for returning to the character pattern of the previous screen is added to the character pattern of this embodiment, the setting is continuously switched without returning to the character pattern of FIG. 10A for each setting. Therefore, the time required for setting can be shortened. For example, in the case of color tone switching, even when red is increased and then blue is decreased, the setting is executed with the screen of FIG. 10 (c) as it is, and when the desired color is obtained, the character returning to the previous screen is visually checked. By doing so, it is not necessary to alternately repeat the character patterns of FIGS. 10A and 10C, and the setting time is shortened.

Next, the fifth embodiment will be described. Figure 1
FIG. 1 is a block configuration diagram of an endoscope apparatus according to a fifth embodiment.

In addition to the configuration of the fourth embodiment, the endoscope apparatus 70 of the present embodiment has an oscillator 66 mounted on the eye camera 43 for outputting an infrared pulse signal, and the oscillator 66.
Of the sensor 67 mounted on the head of the operator 38 and the pulse signal output from the sensor 67 to receive the output pulse. Receiver 68 that measures the distance from the phase difference
And a servo motor 69 for driving the mount of the eye camera 43 vertically and horizontally so that the reception signal level output from the receiver 68 becomes maximum.

Other than that, the same components and operations as those in the fourth embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the present embodiment, the infrared pulse signal output from the transmitter 66 is attached to the sensor 67 mounted on the head of the operator 38.
Is received and returns an infrared pulse signal synchronized with the pulse. The receiver 68 that receives the return signal obtains the phase difference between the pulse output from the oscillator 66 and the received pulse, and outputs it to the viewpoint detection circuit 53 as distance data.

From the distance measurement data, even if the position of the head of the operator 38 moves back and forth, the distance measurement data output from the receiver 68 and the distance measurement data at the time of initial setting of the viewpoint detection circuit 53 are compared at any time. The zoom ratio at the time of initial setting of the viewpoint detection circuit 53 is corrected by the ratio, and the position of the viewpoint on the observation monitor 39 and the position of the viewpoint imaged by the eye camera 43 are matched at any time. This control is performed under the control of the CPU 65.

Further, the servo motor 69 moves the mount of the eye camera 43 vertically and horizontally so that the reception level of the receiver 68 becomes maximum.

As described above, in the present embodiment, the distance between the operator 38 and the eye camera 43 is detected, and the zoom ratio of the image picked up by the eye camera 43 is corrected according to the distance. Since the image pickup direction of the eye camera 43 is controlled so that the reception level of infrared rays output from the sensor attached to the part is maximized, the eye camera 43 is always operated even when the head moves due to the operation of the operator 38. Can follow and accurately detect the viewpoint position.

As described above, in the third to fifth embodiments, since the operator's viewpoint is detected and the setting is switched, the operator does not have to perform the operation for switching the setting, and In the mirror operation, all hands can concentrate on the operation, and the operability is significantly improved.

Further, in the third to fifth embodiments, the movement of the viewpoint on the observation monitor 39 of the endoscope operator is detected by the detecting means, and the setting is switched when the viewpoint does not move for the specified time. By doing so, there is no erroneous operation of setting switching due to the movement of the viewpoint of normal observation, and the setting switching desired by the operator can be reliably performed without the operator operating the panel, and operability is improved.

Further, in the third to fifth embodiments, the movement of the viewpoint of the endoscope operator on the observation monitor 39 is detected, and when there is no movement of the viewpoint for a predetermined time, a predetermined range of the operator's viewpoint is detected. By extracting the endoscopic image and switching each setting according to the output, the point desired by the operator can be switched to an appropriate setting without switching the setting, and the operability is also improved.

In the third to fifth embodiments, the character is superposed on the endoscopic image and is output to the observation monitor 39, and the viewpoint of the endoscope operator on the observation monitor 39 is detected to determine the specified time. When there is no change in the output of the detection means as described above, by switching the setting according to the character signal of the position of the viewpoint,
The operator's desired settings can be reliably set without manual operation, and operability is improved.

In the fifth embodiment, the detecting means is caused to follow the movement of the operator's head, and the distance between the detecting means and the operator is obtained, so that the operator's head can be moved by any operation. The detection accuracy of the viewpoint position of the detection means can be maintained, and reliable setting switching can be performed. That is, it is possible to prevent an erroneous operation or an erroneous operation due to an error in viewpoint detection.

[Supplementary Note 1] In an endoscopic device capable of displaying an endoscopic image and a character on a screen, a detecting means for detecting a viewpoint of an operator observing the displayed screen, and a detecting means by the detecting means. And a switching unit that switches the predetermined setting according to the viewpoint position on the screen.

[Supplementary Note 1-1] In the endoscope apparatus according to Supplementary Note 1, the switching means switches the display state of the endoscope image displayed on the screen as the predetermined setting.

[Supplementary Note 2] The endoscope apparatus according to Supplementary Note 1, further comprising display means for displaying the endoscopic image and a character, and the detecting means is an eye camera for picking up an image of an operator's eyes. The viewpoint detecting means detects the viewpoint position from the information captured by the eye camera and adjusts the detected viewpoint position to the position on the display means.

With the configurations described in Appendix 1 and Appendix 2, the position can be switched by detecting the position of the viewpoint on the screen of the operator.

[Supplementary Note 2-1] The endoscope apparatus according to Supplementary Note 2, wherein the eye camera is gazing at the viewpoint detecting character displayed at the specified position of the display means. Of the viewpoint, and the viewpoint detecting unit detects the viewpoint on the display unit by horizontally reversing the output image captured by the eye camera.

[Supplementary Note 3] In the endoscope apparatus according to Supplementary Note 1, the switching unit switches the setting when the viewpoint position output from the detecting unit does not change for a predetermined time.

With the configuration described in appendix 3, the position of the viewpoint on the screen of the operator can be detected and the setting can be switched when the position does not change, that is, when the viewpoint does not move for a specified time. That is, when the viewpoint is stable and stays at a fixed position, the setting can be switched to prevent an erroneous switching operation.

[Supplementary Note 4] In the endoscope apparatus according to Supplementary Note 1, the switching means may display information of an image corresponding to a predetermined range of the screen, which is set using the viewpoint position detected by the detecting means. It has area information extracting means for extracting, and means for switching the setting according to the output of the area information extracting means when the viewpoint position which is the output of the detecting means does not change for a prescribed time.

With the configuration described in appendix 4, the setting can be switched based on the information of the image which is set using the detected viewpoint position and corresponds to within the predetermined range of the screen.

[Supplementary Note 5] In the endoscope apparatus according to Supplementary Note 1, the switching means includes means for generating a plurality of patterns of the character, means for superimposing the character on an endoscopic image, and the detecting means. Based on the output of the above-mentioned, the means for controlling the switching of the predetermined setting according to the character currently displayed at the viewpoint position on the screen detected by the detecting means.

In the configuration described in appendix 5, the character is superimposed on the endoscopic image on the screen, and the setting can be switched according to the character currently displayed at the viewpoint position on the screen detected by the detecting means. You can

[Supplementary Note 6] In the endoscope apparatus according to Supplementary Note 2, the detecting means includes a distance measuring means for measuring a distance between the eye camera and the operator, and a signal output from the distance measuring means. And a follow-up drive unit that drives the eye camera by following the movement of the operator's head. The detecting unit detects the line of sight detected according to the distance obtained by the distance measuring unit. It is configured to correct the position.

In the structure described in appendix 6, the distance between the detecting means and the operator is obtained, the detecting means corrects the detection of the viewpoint position according to the distance, and the follower means moves the head of the operator. The eye camera is driven in accordance with the above, and the eye of the operator is always imaged by the eye camera, so that the accuracy of the detecting means can be ensured and the setting can be switched accurately.

[Supplementary Note 7] In a light source device having a light source that emits light and a connector receiver to which a connector of an endoscope that receives the light emitted from the light source is detachably mounted, the connector receiver is inside the device. A scattered light passage hole for passing the scattered light generated by the light source is provided, and a light receiving means for receiving the scattered light and generating a signal is arranged at a position opposite to the scattered light passage hole. The scattered light is blocked or passed in accordance with the insertion / removal of the connector of the endoscope, and the scattered light is received by the light receiving means.

In the structure of Supplementary Note 7, by using the scattered light inside the light source device, it is possible to detect whether or not the scattered light reaching the light receiving means is received by the attachment / detachment of the endoscope connector. It is possible to reduce the number of parts and the number of assembling steps because only the light receiving means and the simple structure for blocking the light reaching the light receiving means need to be detected.

[Supplementary Note 8] In the light source device according to Supplementary Note 7, the connector receiver has a plurality of scattered light passage holes for passing the scattered light, and a plurality of light receiving portions at positions opposed to the plurality of passage holes. According to the insertion and removal of the connector configured to block the scattered light reaching the light receiving means at different positions among the plurality of light receiving means according to the type of the endoscope, It is configured such that the scattered light is blocked or passed and is received by the light receiving means.

In the structure of Supplementary Note 8, the presence or absence of the attachment / detachment of the endoscope can be detected only by forming the scattered light passage hole for passing the scattered light and disposing the light receiving means, and by providing a plurality of these passage holes and light receiving elements. The type of endoscope can also be detected.

[0103]

According to the light source device of the present invention, it is possible to reduce the number of parts, simplify the shape of parts, reduce the cost of members and the number of assembly steps, and detect the attachment and detachment of the endoscope.

[Brief description of drawings]

1 to 3 relate to a first embodiment, and FIG. 1 is an external view including a scope connecting portion of an endoscope light source device.

FIG. 2 is a perspective view of a connector receiver and a scope connector.

FIG. 3 is a cross-sectional view of a connector receiver including a scattered light passage hole.

FIG. 4 is a perspective view of a connector receiver and a scope connector according to a second embodiment.

FIG. 5 is a vertical cross-sectional view of a scope detection mechanism according to a conventional example.

FIGS. 6 to 8 relate to a third embodiment, and FIG. 6 is a block configuration diagram of an endoscope apparatus.

FIG. 7 is an explanatory diagram of viewpoint detection.

FIG. 8 is an explanatory diagram of a viewpoint and an area set in an image.

9 and 10 relate to a fourth embodiment, and FIG. 9 is a block configuration diagram of an endoscope apparatus.

FIG. 10 is an explanatory diagram of setting switching.

FIG. 11 is a block configuration diagram of an endoscope apparatus according to a fifth embodiment.

[Explanation of Codes] 1 ... Connector receiver 2 ... Scope connector 2b ... Key convex portion 3 ... Scope insertion hole 3a ... Key groove portion 4 ... Scattered light passage hole 7 ... Photodetector 25 ...

Claims (1)

[Claims] 1. A light source device having a light source that emits light and a connector receiver to which a connector of an endoscope that receives the light emitted from the light source is detachably attached, wherein the connector receiver is emitted by the light source. The light receiving means has a light receiving means for receiving the scattered light scattered inside the device and generating a signal. The light receiving means may block or receive the scattered light by attaching or detaching the connector receiver. A light source device characterized in that it is disposed in.