TWI698216B - Endoscope system and its light source machine - Google Patents

Abstract

An endoscope system and its light source machine, wherein the endoscope system includes a light source machine, an endoscope and an image capture device, the light source machine includes a light guide device and a plurality of independent light source modules, wherein the light source machine borrows The independent light source module can accurately emit the wavelength light source required by the user, and the light emitted by the light source module is guided to the endoscope by the light guide device. The endoscope has a light source input end, a detection end, and an image output end. The light source input end is connected to the light exit port and is used to receive light emitted from the light exit port and emit it from the detection end so that the detection end can borrow When the light emitted by the light source detects a target to be measured, the image data of the target to be measured can be accurately obtained and output from the image output terminal.

Description

Endoscope system and its light source machine

The invention relates to a light source machine; in particular, it refers to a light source machine suitable for an endoscope system.

The known endoscope system includes a light source machine and an endoscope, wherein the endoscope is used to detect the target to be measured; the light source machine is used to provide a white light source for the endoscope to detect the target to be measured.

However, when a white light source is used to detect the target to be measured, only the surface of the target to be measured can be detected, and the invisible image on the surface of the target to be measured cannot be detected, allowing the user to manipulate the endoscope When detecting the target to be measured, it can only judge the change of the physical appearance of the target to be measured, and it is impossible to detect other conditions of the target to be measured at the same time.

Therefore, further manufacturers manufacture light source machines that use filters to filter the light source, so that the light source machine can generate light sources of different spectra, so that the endoscope can detect the target under test with light sources of different spectra. When the target is to be tested, the developer is used to allow the endoscope to detect the fluorescent reaction of the position to be tested with light sources of different spectra. However, the light source machine with a filter can filter the source light source through the filter, so that The wavelength band of the light source is close to the light source spectrum required by the manufacturer. However, because the fluorescent reaction requires the spectrum of the light source to be accurate, the user can detect the reaction through the endoscope. Therefore, when a user manipulates a light source machine with a filter and a developer for detection, the image data at the location to be measured is often not detected.

In view of this, the object of the present invention is to provide an endoscope system and its light source machine, wherein the light source machine has a plurality of independent light source modules, and the endoscope system can obtain the image data of the target to be measured by the light source machine.

In order to achieve the above object, the present invention provides an endoscope system and a light source machine. The endoscope system includes the light source machine, an endoscope and an image capturing device, and the light source machine includes: a light guide The device has a hollow cavity and at least one light guide element arranged in the hollow cavity, the hollow cavity has a first light entrance, a second light entrance, a third light entrance, and a light exit A first light source module, corresponding to the first light entrance, for emitting a first light; a second light source module, corresponding to the second light entrance, for emitting a second light; and The laser light source module corresponds to the third light entrance for emitting a laser light; the light guide element is used for guiding the first light or the second light or the laser light source through the light exit. The endoscope has a light source input end, a detection end, and an image output end. The light source input end is connected to the light exit port and is used to receive the first light, the second light or the laser light and automatically The detection end emits; the detection end is used to detect a target to be tested, and receives an image beam generated by the target to be tested after being irradiated by light, and the image beam is output by the image output end; the image capture device and The image output terminal is connected to receive the image beam and generate an image data.

The effect of the present invention is that the light source machine has multiple independent light source modules instead of using multiple light sources to mix. Therefore, the wavelength of the light source emitted by the light source machine can accurately reach the wavelength band required by the user, and the endoscope system uses the light source machine Can accurately obtain the image data of the target to be measured.

In order to explain the present invention more clearly, a few preferred embodiments are listed in detail in conjunction with the drawings as follows. Please refer to FIG. 1, which is an endoscope system 1 according to the first preferred embodiment of the present invention. The endoscope system 1 includes a light source machine 100, an endoscope 200, an image capturing device 300, and a display装置400。 Device 400.

As shown in FIGS. 2 to 5, the light source machine 100 includes a light guide device 10, a first light source module 20, a second light source module 30, and a laser light source module 40.

The light guide device 10 has a hollow cavity 12 and a light guide element 14 located in the hollow cavity 12. Wherein, the hollow cavity 12 has three light entrances and a light exit 12a. The light entrances are respectively used to receive the light emitted by the corresponding light source modules, and the light entrances receive The light can be guided by the light guide element 14 to accurately guide the light from the hollow cavity 12 through the light outlet 12a through the effects of refraction, reflection, and the like, and exit along a light outlet axis L1 of the light outlet 12a.

In this embodiment, the three light entrances are respectively a first light entrance 12b, a second light entrance 12c, and a third light entrance 12d. The light source module corresponding to the first light entrance 12b is The first light source module 20; the light source module corresponding to the second light entrance 12c is the second light source module 30; the light source module corresponding to the third light entrance 12d is the laser light source module 40, and The third light port 12d is located between the first light entrance 12b or the second light entrance 12c and the light exit 12a.

可設計為介於5度至35度之間，較佳者，第一光軸L2與出光軸L1之夾角

係設計為介於10度至20度之間，而於本實施例中，第一光軸L2與出光軸L1之夾角

係設計為17.5度（圖４參照）。The first light source module 20 is used to be controlled to emit a first light along a first optical axis L2. When the first light source module 20 emits the first light, the first light will be along the first optical axis L2 is shot into the hollow cavity 12. Among them, the angle between the first optical axis L2 and the optical axis L1

Can be designed to be between 5 degrees and 35 degrees, preferably, the angle between the first optical axis L2 and the optical axis L1

It is designed to be between 10 degrees and 20 degrees. In this embodiment, the angle between the first optical axis L2 and the optical axis L1

The system design is 17.5 degrees (refer to Figure 4).

可設計為介於5度至35度之間，較佳者，第二光軸L3與出光軸L1之夾角

係設計為介於10度至20度之間，而於本實施例中，第二光軸L3與出光軸L1之夾角

係設計為17.5度，且第二光源模組30位於第一光源模組20以及雷射光源模組40之間（圖４參照）。The second light source module 30 is controlled to emit a second light along a second optical axis L3. When the second light source module 30 emits the second light, the second light will be along the second optical axis. L3 is shot into the hollow cavity 12, where the angle between the second optical axis L3 and the optical axis L1

Can be designed to be between 5 degrees and 35 degrees, preferably, the angle between the second optical axis L3 and the optical axis L1

It is designed to be between 10 degrees and 20 degrees. In this embodiment, the angle between the second optical axis L3 and the optical axis L1

The design is 17.5 degrees, and the second light source module 30 is located between the first light source module 20 and the laser light source module 40 (refer to FIG. 4).

可設計為介於110度至160度之間，較佳者，所述夾角

可設計為介於120度至150度之間，而於本實施例中，所述夾角

係設計為135度。另外，第三光軸L4與出光軸L1的夾角

可設計為介於75度至105度之間，較佳者，夾角

可設計為80度至90度之間，而於本實施例中，所述夾角

係設計為90度。The laser light source module 40 is controlled to emit a laser light along a third optical axis L4. When the laser light source module 40 emits laser light, the laser light will be along the third optical axis L4 The laser light source module 40 is located in the first light source module 20 or the second light source module 20 when it is injected into the hollow cavity 12 and can be guided by the light guide element 14 through the light outlet 12a, and in a direction parallel to the light output axis L1 Between the light source module 30 and the light outlet 12a. In addition, in this embodiment, the first optical axis L2 of the first light source module 20, the second optical axis L3 of the second light source module 30, and the third optical axis L4 of the laser light source module 40 are substantially coplanar . In this embodiment, the light guide element 14 has a reflective surface 14a for reflecting the incident laser light to exit the light outlet 12a. The reflective surface 14a can be, but not limited to, coated or plated on The reflective film on the light guide element 14 is formed, wherein the angle between the reflective surface 14a and the incident laser light is

Can be designed to be between 110 degrees and 160 degrees, preferably, the included angle

It can be designed to be between 120 degrees and 150 degrees, and in this embodiment, the included angle

The design is 135 degrees. In addition, the angle between the third optical axis L4 and the optical axis L1

Can be designed to be between 75 degrees and 105 degrees, preferably, the included angle

It can be designed to be between 80 degrees and 90 degrees, and in this embodiment, the included angle

The design is 90 degrees.

In addition, please cooperate with FIG. 4 and FIG. 5, in this embodiment, the first light source module 20 and the second light source module 30 are symmetrically arranged along the two sides of the light output axis L1, and the first optical axis L2 and the second optical axis L3 are arranged symmetrically with respect to the light output axis L1 respectively. The first light source module 20 has a first side surface 22 and a first output terminal 24. The first output terminal 24 is used to emit the first Light, and the first output end 24 is adjacent to the first side surface 22; the second light source module 30 has a second side surface 32 and a second output end 34, the second output end 34 is used to emit the second light, and The second output end 34 is adjacent to the second side surface 32, wherein the first side surface 22 and the second side surface 32 face each other, and both are surfaces disposed close to the light output axis L1. Through the above design, the overall volume of the light source machine 100 can be effectively reduced, which can contribute to a miniaturized design. In addition, through the above design, the first output end 24 of the first light source module 20 and the second light source The second output end 34 of the module 30 can be designed to be closer to the light guide device 10, therefore, the light output efficiency can be improved and the attenuation of the light output can be reduced.

In addition, one of the first light and the second light can be white light, the other can be blue light, and the laser light can be red light. In this embodiment, the first light of the first light source module 20 is white light, and the second light of the second light source module 30 is blue light. Among them, the white light is used to reflect the whole image, and the blue light and red light are respectively. Used with the developer to observe the fluorescence response of the target to be measured.

In addition, referring to FIG. 5, the light source machine 100 may be further provided with at least two lenses 50, and the lenses 50 are respectively disposed between the light guide element 14 and the first light source module 20, and the light guide element 14 and the first light source module 20. The two light source modules 30 are respectively used to shape the first light emitted by the first light source module 20 and the second light emitted by the second light source module 30. For example, in this embodiment, the first light A lens 50 is respectively arranged between the light source module 20 and the light guide element 14 and between the second light source module 30 and the light guide element 14 to respectively converge and concentrate the first light emitted by the first light source module 20 With the second light emitted by the second light source module 30, the first light and the second light can respectively form a more concentrated light beam and be emitted to the light guide element 14, so that the first light and the second light pass through the lens When it is refracted to the light exit 12a, the energy is more concentrated, thereby improving its light extraction efficiency.

Please refer to FIG. 1 again. The endoscope 200 has a light source input terminal 202, a detection terminal 204, and an image output terminal 206. The light source input terminal 202 and a light outlet 12a of the light source machine 100 can be guided by The light pipe (not shown) is connected or directly connected, and is used to receive the light emitted by each light source module, such as the first light, the second light or the laser light, and the received light can be from the endoscope 200 The detecting end 204 of the Detector is used to detect a target to be tested, and the detecting end 204 will also receive an image beam generated by the target to be tested after being irradiated by light, and the image beam will be output from the image output terminal 206, for example, In an application scenario, the user will enter the developer into the target to be measured, and by inputting light sources of different wavelengths, the user will detect the image beam that has undergone the response of the target to be measured.

The image capturing device 300 and the image output terminal 206 can be connected or directly connected by a light pipe (not shown), wherein the image capturing device 300 receives the image beam output from the image output terminal 206 and transfers the image beam The conversion generates an image data and sends it to the display device 400 so that the user can observe the target to be measured through the display device 400.

The display device 400 allows the user to see the image of the target under test through the display device 400, so that the user can determine the information of the target under test. For example, in this embodiment, the user can use different independent light sources. And with different developers, the images displayed on the display device 400 of the target to be measured are different.

In addition, as shown in FIG. 2, in this embodiment, the light source machine 100 can be further connected to a control device 60 for the user to control the light source output by the light source machine 100. For example, the The control device 60 may include, but is not limited to, a two-foot pedal 62 and a touch display panel 64. The two-foot pedal 62 is connected to the light source machine 100 and can be stepped on by the user to switch the light source output by the light source machine 100. The touch display panel 64 can be clicked by the user to select the light source output by the light source machine 100, and to control the intensity of the light output from the light source machine, but not limited to this. In this way, through the above design, the user can control the type of light source output by the light source machine 100 by stepping on the foot pedal 62 or clicking the touch display panel 64 while controlling the endoscope 200. Thus, convenient and fast light source output switching can be performed.

According to the above, it is the endoscope system 1 of the present invention, in which the light source machine 100 can accurately emit a light source that allows the endoscope 200 to detect the target to be measured, so that the endoscope 200 can detect the correct image The light beam generates image data through the image capturing device 300 and then transmits it to the display device 400 for the user to determine the target to be measured.

In addition, with the design of the first light source module, the second light source module, and the laser light source module of the light source machine of the present invention, each of the aforementioned light source modules can output independent light sources, and the advantage of setting independent light sources is that it can be accurate By controlling the wavelength of the output light source, the light source of the accurate wavelength can be accurately emitted to meet the needs of use, thereby improving the shortcomings of the light source machine that used the filter to filter the light source. In addition, through the above-mentioned angle design of the light source modules and the design of beam shaping with the lens, the light energy can be concentrated without scattering, and the light has a smaller light attenuation and a smaller volume. In addition, with the design of the control device, the user can quickly and conveniently switch the light source to use, and the convenience of the user's manipulation can be improved.

為44~46度間，較佳者為實質上45度，且，第一光軸L2與出光軸L1之夾角

係設計為88~92度間，較佳者為實質上90度，第二光軸L3與出光軸L1二者為實質上同軸或共面（亦即二者之夾角

係設計實質上為0度，第一光源模組20的第一光線是選用藍光，第二光源模組30的第二光線是選用白光，藉此，第一光源模組20沿一第一光軸L2發射該第一光線，第一光線經由該第一導光元件15的反射面15a反射後穿過該第二導光元件16，自中空腔體12通過該出光口12a，並沿著出光口12a的出光軸L1射出，及該第二光源模30組沿一第二光軸L3發射該第二光線，第二光線穿過該第一導光元件15及該第二導光元件16後通過該出光口12a，第二光線及自中空腔體12通過出光口12a，並沿著出光口12a的出光軸L1射出，所述第二導光元件16具有一反射面16a，用以反射入射之雷射光線往出光口12a射出，第三光軸L4與出光軸L1的夾角可設計為與第一實施例相同，容不贅述。Please refer to FIG. 6 again, which is a partial top view of the light source machine of the second preferred embodiment of the present invention, which has substantially the same structure as the light source machine of the first preferred embodiment, except that the light guide element 14 It includes a first light guide element 15 and a second light guide element 16. The first light guide element 15 and the second light guide element 16 are disposed between the second light source module 30 and the light outlet 12a. A light guide element 15 has a reflective surface 15a, and the angle between the normal line L5 of the reflective surface 15a and the light output axis L1

It is between 44 and 46 degrees, preferably substantially 45 degrees, and the angle between the first optical axis L2 and the optical axis L1

The design is between 88 and 92 degrees, preferably substantially 90 degrees. The second optical axis L3 and the light output axis L1 are substantially coaxial or coplanar (that is, the angle between the two

The design is essentially 0 degrees, the first light of the first light source module 20 is blue light, and the second light of the second light source module 30 is white light, so that the first light source module 20 is along a first light The axis L2 emits the first light. The first light is reflected by the reflective surface 15a of the first light guide element 15 and then passes through the second light guide element 16, passes through the light outlet 12a from the hollow cavity 12, and exits along the light The second light source module 30 emits the second light along a second optical axis L3. The second light passes through the first light guide element 15 and the second light guide element 16. Through the light exit 12a, the second light and the hollow cavity 12 pass through the light exit 12a and exit along the light exit axis L1 of the light exit 12a. The second light guide element 16 has a reflective surface 16a for reflecting the incident The laser light is emitted to the light exit 12a, and the angle between the third optical axis L4 and the optical axis L1 can be designed to be the same as that of the first embodiment, and will not be repeated.

The light source machine of the second preferred embodiment of the present invention also has a plurality of independent light source modules. Therefore, the wavelength of the light source emitted by the light source machine can accurately reach the wavelength band required by the user, and the image of the target to be measured can be accurately obtained. The efficacy of the data.

The above are only the preferred and feasible embodiments of the present invention. Any equivalent changes made by applying the specification of the present invention and the scope of the patent application should be included in the patent scope of the present invention.

‧‧‧夾角[This invention] 1. ‧ ‧ Endoscopic system 100 ‧ ‧ Light source 10 ‧ ‧ Light guide 12 ‧ ‧ Hollow cavity 12a ‧ ‧ Light exit 12b ‧ ‧ First light entrance 12c ‧ ‧Second light entrance 12d‧‧‧Third light entrance 14‧‧‧Light guide element 14a‧‧Reflective surface 15‧‧‧First light guide element 15a‧‧‧Reflective surface 16‧‧‧Second guide Light element 16a‧‧‧Reflecting surface 20‧‧‧First light source module 22‧‧‧First side surface 24‧‧‧First output end 30‧‧‧Second light source module 32‧‧‧Second side surface 34‧ ‧‧Second output terminal 40‧‧‧Laser light source module 50‧‧‧Lens 60‧‧‧Control device 62‧‧‧Foot pedal 64‧‧‧Touch display panel 200‧‧‧Endoscope 202‧ ‧‧Light source input terminal 204‧‧‧Detection terminal 206‧‧‧Image output terminal 300‧‧‧Image capture device 400‧‧‧Display device L1‧‧‧Optical axis L2‧‧‧First optical axis L3‧‧‧ Second optical axis L4‧‧‧Third optical axis L5‧‧‧Normal

‧‧‧Included angle

Figure 1 is a schematic diagram of an endoscope system according to a preferred embodiment of the present invention; Figure 2 is a three-dimensional schematic diagram of a light source machine according to a preferred embodiment of the present invention; Figure 3 is a schematic diagram of the interior of the light source machine of the above preferred embodiment; Figure 4 is a partial top view of the light source machine of the above preferred embodiment; Figure 5 is a partial enlarged view of Figure 4; Fig. 6 is a partial top view of the light source machine of the second preferred embodiment of the present invention.

1‧‧‧Endoscope System

100‧‧‧Light source machine

12a‧‧‧light outlet

200‧‧‧Endoscope

202‧‧‧Light source input

204‧‧‧Detection end

206‧‧‧Video output terminal

300‧‧‧Image capture device

400‧‧‧Display device

Claims (14)

A light source machine, comprising: a light guide device having a hollow cavity and at least one light guide element arranged in the hollow cavity, the hollow cavity having a first light entrance and a second light entrance Port, a third light entrance, and a light exit; a first light source module, corresponding to the first light entrance, for emitting a first light; a second light source module, corresponding to the second light entrance , Used to emit a second light; a laser light source module, corresponding to the third light entrance, used to emit a laser light; wherein, the light guide element is used to guide the first light or the second light Or the laser light source passes through the light exit, wherein the first light source module emits the first light along a first optical axis; the second light source module emits the second light along a second optical axis; the laser The light source module emits the laser light along a third optical axis; the first optical axis, the second optical axis, and the third optical axis are substantially coplanar. The light source machine of claim 1, wherein the light guide element has a reflective surface for reflecting the incident laser light to the light exit; the angle between the reflective surface and the incident laser light is 120 Between degrees and 150 degrees. The light source machine according to claim 1, wherein the light outlet has an optical axis, and the angle between the optical axis and the third optical axis is between 75 degrees and 105 degrees. The light source machine of claim 1, wherein the light outlet has an optical axis; the angle between the first optical axis and the optical axis is between 5 degrees and 35 degrees; the second optical axis and the optical axis are The included angle is between 5 degrees and 35 degrees. The light source machine according to claim 4, wherein the first optical axis and the second optical axis are symmetrically arranged on the basis of the optical axis. The light source machine according to claim 1, wherein the laser light is red light; one of the first light and the second light is white light, and the other is blue light. The light source machine according to claim 1, wherein the second light source module is located between the first light source module and the laser light source module. The light source machine according to claim 1, wherein the third light entrance is located between the first light entrance or the second light entrance and the light exit. The light source machine according to claim 1, wherein the light outlet has a light output axis; in a direction parallel to the light output axis, the laser light source module is located at the first light source module or the second light source module And the light outlet. The light source machine according to claim 1, comprising at least two lenses respectively arranged between the light guide element and the first light source module and between the light guide element and the second light source module for focusing respectively The first light emitted by the first light source module and the second light emitted by the second light source module. The light source machine according to claim 1, wherein the number of the at least one light guide element is two, including a first light guide element and a second light guide element, the first light guide element and the second light guide element Set between the second light source module and the light outlet, the first light is reflected by the first light guide element and then passes through the second light guide element and passes through the light outlet, and the second light passes through the first light guide element. The light guide element and the second light guide element pass through the light outlet. The light source machine according to claim 11, wherein the light outlet has an optical axis; the angle between the first optical axis and the optical axis is between 88 and 92 degrees; the second optical axis and the optical axis are coaxial, The first light guide element has a reflective surface for reflecting the first light, and the included angle between the normal line of the reflective surface and the light output axis is between 44 and 46 degrees. A light source machine, which includes: A light guide device having a hollow cavity and at least one light guide element arranged in the hollow cavity, the hollow cavity having a first light entrance, a second light entrance, and a third light entrance And a light exit; a first light source module corresponding to the first light entrance for emitting a first light; a second light source module corresponding to the second light entrance for emitting a second light ; A laser light source module corresponding to the third light entrance for emitting a laser light; wherein, the light guide element is used to guide the first light or the second light or the laser light source through the light Port, wherein the first light source module has a first side surface and a first output end, and the first output end is adjacent to the first side surface for emitting the first light; the second light source module has a second The side surface and a second output end, the second side surface faces the first side surface, and the second output end is adjacent to the second side surface for emitting the second light. An endoscope system, comprising: a light source machine as described in any one of claims 1 to 13; an endoscope having a light source input end, a detection end and an image output end, the light source input The end is connected to the light outlet, and is used to receive the first light, the second light or the laser light and emit it from the detection end; the detection end is used to detect a target to be measured and receive the receiving After the light is irradiated, an image beam is generated, and the image beam is output from the image output end; an image capture device is connected with the image output end to receive the image beam and generate an image data.

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