CN216675696U - Special spectrum light source module for endoscope system - Google Patents
Special spectrum light source module for endoscope system Download PDFInfo
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- CN216675696U CN216675696U CN202122879144.7U CN202122879144U CN216675696U CN 216675696 U CN216675696 U CN 216675696U CN 202122879144 U CN202122879144 U CN 202122879144U CN 216675696 U CN216675696 U CN 216675696U
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- 230000004907 flux Effects 0.000 description 3
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- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 description 2
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- 230000017531 blood circulation Effects 0.000 description 1
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Abstract
The utility model provides a special spectrum light source module for an endoscope system, which comprises a first light source module, a second light source module, a third light source module, a long-wave-pass dichroic mirror, a short-wave-pass dichroic mirror, a focusing lens group and a hardware control module, wherein the first light source module is used for providing light for a user; the hardware control module is respectively electrically connected with the first light source module, the second light source module and the third light source module, and the first light source module, the second light source module and the third light source module can emit light rays with different wavelengths; the first light source module, the long-wave-pass dichroic mirror, the short-wave-pass dichroic mirror and the focusing lens group are sequentially arranged and are positioned on the same optical axis, and the light emergent direction of the second light source module is vertical to the optical axis and is positioned in the same plane; and the light ray emergent direction of the third light source module is vertical to the optical axis and is positioned in the same plane. The light source module integrates multiple imaging illumination modes, and compared with a light source device for switching the filter mode, the light source module is more compact in structure, low in price and simple to operate.
Description
Technical Field
The utility model relates to a light source module, in particular to a special spectrum light source module for an endoscope system.
Background
When an endoscope system is used for imaging the inside of a living body, an illumination light source is required to be provided for the inside of the living body; the most basic illumination light source is white light illumination, in order to observe the morphological characteristics of blood vessels, the contrast between the blood vessels and surrounding tissues needs to be improved, and by utilizing the characteristic that blood can strongly absorb and the mucosal surface strongly reflects or scatters light in certain frequency ranges, capillary vessels on the mucosal surface, blood vessels in the middle layer and blood vessel network under the mucosa can be obviously displayed by providing Narrow-band blue light, green light and red light, which is also called Narrow-band imaging (NBI); the gastrointestinal tract mucosa is irradiated by light with a special frequency band, the tissue spontaneous emission Fluorescence can be excited, the Fluorescence spectrum of the spontaneous emission of the normal tissue and the tumor tissue of a human body has difference, the normal tissue and the tumor tissue can be distinguished according to the difference, and the technology is also called as an autofluorescence Imaging (AFI); after indocyanine green is injected into a vein, infrared light is used for irradiating the indocyanine green, reticular gastric blood vessels can be seen, and therefore information of mucosa deep blood vessels and blood flow which are difficult to identify by human eyes is displayed in an enhanced mode, and the technology is called infrared Imaging (IRI);
the endoscope system can be optimized and the cost can be reduced by integrating the plurality of lighting technologies into a set of modules, and the burden of doctors and patients can also be reduced; at present, the general method is that an external light source such as a high-power xenon lamp or an LED is coupled into an endoscope guide tube through a glass light guide beam after being switched into different filters; the transmission device required for switching the optical filter is complex, the operation is complex, the space is not compact enough, and the cost of the whole lighting source module is increased due to the installation of excessive optical filters.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, an object of the present invention is to provide a special spectrum light source module for an endoscope system, which not only integrates multiple imaging illumination modes, but also is more compact in structure, lower in price, and simple in operation compared to a light source device that switches a filter mode.
Based on the above purpose, the utility model provides a special spectrum light source module for an endoscope system, which comprises a first light source module, a second light source module, a third light source module, a long-wave-pass dichroic mirror, a short-wave-pass dichroic mirror, a focusing lens group and a hardware control module; the hardware control module is respectively electrically connected with the first light source module, the second light source module and the third light source module and is used for adjusting the switching condition and the illumination intensity of each light source module, and the first light source module, the second light source module and the third light source module can emit light rays with different wavelengths;
the first light source module, the long-wave-pass dichroic mirror, the short-wave-pass dichroic mirror and the focusing lens group are sequentially arranged and are positioned on the same optical axis, the long-wave-pass dichroic mirror and the short-wave-pass dichroic mirror are arranged at an angle of 45 degrees, the light emergent direction of the second light source module is perpendicular to the optical axis and is positioned in the same plane, and light of the second light source module is emitted and then strikes the long-wave-pass dichroic mirror at an angle of 45 degrees and is reflected to the short-wave-pass dichroic mirror and the focusing lens group through the long-wave-pass dichroic mirror; the light emergent direction of the third light source module is perpendicular to the optical axis and in the same plane, and the light of the third light source module is emitted and then is emitted at an angle of 45 degrees to the short-wave-pass dichroic mirror, and is reflected to the focusing lens group through the short-wave-pass dichroic mirror.
Preferably, the light source module further includes a collimating lens respectively disposed in the light emitting direction of each light source module.
Preferably, the first light source module includes a plurality of LEDs for emitting white light and fluorescent light, respectively.
Preferably, the first light source module includes an LED1.1, an LED1.2, an LED1.3, and an LED1.4, where the LED1.2 and the LED1.3 are configured to emit white light, and the LED1.1 and the LED1.4 are configured to emit fluorescence.
Preferably, the LED1.1 and the LED1.4 have a central wavelength of 435 + -5 nm, 450 + -5 nm, 460 + -5 nm, 540 + -5 nm and 600 + -5 nm.
Preferably, the second light source module includes a plurality of LEDs disposed adjacently and respectively emitting fluorescent light and narrow-band light.
Preferably, the second light source module includes an LED2.1, an LED2.2, and an LED2.3, where the LED2.1 and the LED2.2 are configured to emit fluorescence, and the LED2.3 is configured to emit narrow-band light.
Preferably, the central wavelengths of the LED2.1, the LED2.2 and the LED2.3 are 385 + -5 nm, 405 + -5 nm and 415 + -5 nm respectively.
Preferably, the third light source module includes LEDs 3.1, 3.2, 3.3, and 3.4 that are adjacently disposed and used for emitting infrared light.
Preferably, the central wavelengths of the LEDs 3.1 and 3.4 are 785 +/-5 nm, and the central wavelengths of the LEDs 3.2 and 3.3 are 810 +/-5 nm;
or the central wavelengths of the LED3.1, the LED3.2, the LED3.3 and the LED3.4 are 785 +/-5 nm;
alternatively, the center wavelengths of LED3.1, LED3.2, LED3.3 and LED3.4 are all 810 + -5 nm.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model integrates multiple imaging illumination modes, and has the advantages of more compact structure, low price and simple operation compared with a light source device for switching the filter mode.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic diagram of a spectral light source module in an embodiment of the utility model;
FIG. 2 is a schematic diagram of a spectral light source module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the distribution of three light source modules according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an operation mode of the spectral light source module according to the embodiment of the present invention.
Wherein, 1, a first light source module; 2. a second light source module; 3. a third light source module; 4. a first collimating lens; 5. a second collimating lens; 6. a third collimating lens; 7. a focusing lens group; 8. a long-wave pass dichroic mirror; 9. a short wave pass dichroic mirror; 10. and (7) guiding the light beam.
Detailed Description
The utility model is further described with reference to the following figures and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, the present embodiment provides a special spectrum light source module for an endoscope system, which includes a first light source module 1, a second light source module 2, a third light source module 3, a long-wave pass dichroic mirror 8, a short-wave pass dichroic mirror 9, a focusing lens group 7, and a hardware control module; as shown in fig. 2, the hardware control module is electrically connected to the first light source module 1, the second light source module 2, and the third light source module 3, respectively, and is configured to adjust a switching condition and an illumination intensity of each light source module, and specifically, the hardware control module is configured to control and implement turning on and off of several imaging modes and adjustment of the illumination intensity; the first light source module 1, the second light source module 2 and the third light source module 3 can emit light rays with different wavelengths;
the first light source module 1, the long-wave-pass dichroic mirror 8, the short-wave-pass dichroic mirror 9 and the focusing lens group 7 are sequentially arranged and are positioned on the same optical axis, the long-wave-pass dichroic mirror 8 and the short-wave-pass dichroic mirror 9 are arranged at an angle of 45 degrees, the light emergent direction of the second light source module 2 is perpendicular to the optical axis and is positioned in the same plane, and light of the second light source module 2 is emitted and then strikes the long-wave-pass dichroic mirror 8 at an angle of 45 degrees and is reflected to the short-wave-pass dichroic mirror 9 and the focusing lens group 7 through the long-wave-pass dichroic mirror 8; the light emitting direction of the third light source module 3 is perpendicular to the optical axis and is in the same plane, and the light of the third light source module 3 is emitted and then strikes the short-wave-pass dichroic mirror 9 at an angle of 45 degrees, and is reflected to the focusing lens group 7 through the short-wave-pass dichroic mirror 9; the focusing lens group 7 is used to focus the light source on the light guide beam 10 for use in an endoscope system. In particular, the long-wave pass dichroic mirror 8 is used for transmitting 435-850nm wave band and reflecting 325-425nm wave band; the short wave-pass dichroic mirror 9 is used for transmitting the wave band of 400-680nm and reflecting the wave band of 700-900 nm; as shown in fig. 1, a long-wavelength-pass dichroic mirror 8 is used for the light source module 2, and a short-wavelength-pass dichroic mirror 9 is used for the light source module 3.
As a preferred embodiment, the light source module further includes collimating lenses 4, 5, and 6 respectively disposed in the light emitting direction of each light source module.
As a preferred embodiment, the first light source module 1 includes a plurality of LEDs for emitting white light and fluorescent light, respectively.
As a preferred embodiment, as shown in fig. 3, the first light source module 1 includes an LED1.1, an LED1.2, an LED1.3, and an LED1.4, where the LED1.2 and the LED1.3 are configured to emit white light, and the LED1.1 and the LED1.4 are configured to emit fluorescent light.
In a preferred embodiment, the LED1.1 and the LED1.4 have a center wavelength of 435 + -5 nm, 450 + -5 nm, 460 + -5 nm, 540 + -5 nm and 600 + -5 nm.
In a preferred embodiment, the second light source module 2 includes a plurality of LEDs respectively emitting fluorescent light and narrow-band light, which are adjacently disposed.
As a preferred embodiment, as shown in fig. 3, the second light source module 2 includes an LED2.1, an LED2.2, and an LED2.3, where the LED2.1 and the LED2.2 are configured to emit fluorescence, and the LED2.3 is configured to emit narrow-band light.
In a preferred embodiment, the central wavelengths of the LEDs 2.1, 2.2 and 2.3 are 385 ± 5nm, 405 ± 5nm and 415 ± 5nm, respectively.
As a preferred embodiment, as shown in fig. 3, the third light source module 3 includes LEDs 3.1, 3.2, 3.3, and 3.4 that are adjacently disposed and used for emitting infrared light.
In a preferred embodiment, the central wavelength of the LED3.1 or 3.4 is 785 +/-5 nm, and the central wavelength of the LED3.2 or 3.3 is 810 +/-5 nm;
or the central wavelengths of the LED3.1, the LED3.2, the LED3.3 and the LED3.4 are 785 +/-5 nm;
alternatively, the center wavelengths of LED3.1, LED3.2, LED3.3 and LED3.4 are all 810 + -5 nm.
As shown in fig. 4, the special spectrum light source module provided in this embodiment has the following operation modes:
1. in the white light mode, white light illumination can be realized by lighting the LEDs 1.2 and 1.3, and the luminous flux output by the LEDs can be controlled by changing the current input into the LEDs;
2. autofluorescence imaging mode: the LEDs 1.1, 1.4, 2.1 and 2.2 are lightened, the luminous flux output by the LEDs can be controlled by changing the current input into the LEDs, and the uniform change of the illumination intensity of the autofluorescence imaging can be realized by adjusting the current distribution of each LED;
3. the narrow-band imaging mode can realize narrow-band imaging illumination by lighting the LED2.3 or the LED1.1 and the LED1.4, the first optical module can be combined in different ways according to project requirements, and the corresponding optical module is installed according to actual conditions;
4. an infrared imaging mode, wherein an infrared illumination mode can be realized by lighting the LEDs 3.1, 3.2, 3.3 and 3.4, and the luminous flux output of the LEDs is controlled by adjusting the current;
in conclusion, the utility model integrates multiple imaging illumination modes, and has the advantages of more compact structure, low price and simple operation compared with a light source device for switching the filter mode.
Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the principle and spirit of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. A special spectrum light source module for an endoscope system is characterized by comprising a first light source module, a second light source module, a third light source module, a long-wave-pass dichroic mirror, a short-wave-pass dichroic mirror, a focusing lens group and a hardware control module; the hardware control module is respectively electrically connected with the first light source module, the second light source module and the third light source module and is used for adjusting the switching condition and the illumination intensity of each light source module, and the first light source module, the second light source module and the third light source module can emit light rays with different wavelengths;
the first light source module, the long-wave-pass dichroic mirror, the short-wave-pass dichroic mirror and the focusing lens group are sequentially arranged and are positioned on the same optical axis, the long-wave-pass dichroic mirror and the short-wave-pass dichroic mirror are arranged at an angle of 45 degrees, the light emergent direction of the second light source module is perpendicular to the optical axis and is positioned in the same plane, and light of the second light source module is emitted and then strikes the long-wave-pass dichroic mirror at an angle of 45 degrees and is reflected to the short-wave-pass dichroic mirror and the focusing lens group through the long-wave-pass dichroic mirror; the light emergent direction of the third light source module is perpendicular to the optical axis and in the same plane, and the light of the third light source module is emitted and then is emitted at an angle of 45 degrees to the short-wave-pass dichroic mirror, and is reflected to the focusing lens group through the short-wave-pass dichroic mirror.
2. The special spectrum light source module for endoscope system according to claim 1, wherein said light source module further comprises a collimating lens respectively disposed in the light emitting direction of each light source module.
3. The special spectrum light source module for endoscope system according to claim 1, wherein said first light source module comprises a plurality of LEDs for emitting white light and fluorescent light, respectively.
4. The special spectrum light source module for endoscope system according to claim 3, wherein said first light source module comprises LED1.1, LED1.2, LED1.3 and LED1.4, said LED1.2 and LED1.3 are used for emitting white light, said LED1.1 and LED1.4 are used for emitting fluorescence.
5. The special spectrum light source module for endoscope system according to claim 4, wherein said LED1.1, LED1.4 is a combination of any two of 435 ± 5nm, 450 ± 5nm, 460 ± 5nm, 540 ± 5nm, 600 ± 5nm in central wavelength.
6. The special spectrum light source module for endoscope system according to claim 1, wherein said second light source module comprises a plurality of LEDs adjacently disposed for emitting fluorescence and narrow band light, respectively.
7. The special spectrum light source module for endoscope system according to claim 6, wherein said second light source module comprises LED2.1, LED2.2 and LED2.3, said LED2.1 and LED2.2 are used for emitting fluorescence, said LED2.3 is used for emitting narrow-band light.
8. The special spectrum light source module for endoscope system according to claim 7, wherein said LED2.1, LED2.2 and LED2.3 have center wavelength of 385 ± 5nm, 405 ± 5nm, 415 ± 5nm, respectively.
9. The special spectrum light source module for endoscope system according to claim 1, wherein said third light source module comprises adjacently disposed LEDs 3.1, 3.2, 3.3 and 3.4 for emitting infrared light.
10. The special spectrum light source module for endoscope system according to claim 9, wherein said LED3.1, LED3.4 has center wavelength 785 ± 5nm, LED3.2, LED3.3 has center wavelength 810 ± 5 nm;
or the central wavelengths of the LED3.1, the LED3.2, the LED3.3 and the LED3.4 are 785 +/-5 nm;
alternatively, the center wavelengths of LED3.1, LED3.2, LED3.3 and LED3.4 are all 810 + -5 nm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122879144.7U CN216675696U (en) | 2021-11-23 | 2021-11-23 | Special spectrum light source module for endoscope system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122879144.7U CN216675696U (en) | 2021-11-23 | 2021-11-23 | Special spectrum light source module for endoscope system |
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| CN216675696U true CN216675696U (en) | 2022-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116712020A (en) * | 2023-07-05 | 2023-09-08 | 苏州璞煜科技服务有限公司 | Multispectral cold light source system for medical endoscope |
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2021
- 2021-11-23 CN CN202122879144.7U patent/CN216675696U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116712020A (en) * | 2023-07-05 | 2023-09-08 | 苏州璞煜科技服务有限公司 | Multispectral cold light source system for medical endoscope |
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