Light source module and endoscope

By employing a multi-light source module in the endoscope and utilizing a combination of collimation components and light combining elements, illumination from multiple colors or composite light sources can be achieved. This solves the problem of existing endoscopes in identifying and displaying cells in different organs and tissues at different depths, improving the convenience and accuracy of detection.

CN223914114UActive Publication Date: 2026-02-17ZHUHAI SHIXIN MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202422812503.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2026-02-17
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

The single-color or polychromatic light sources of existing endoscopes cannot meet the needs of identifying and displaying tissue cells of different organs and at different depths.

Method used

A light source module including a first light source and at least one second light source is used. Through the combination of collimation components, light combining elements and focusing components, the light paths of multiple light sources are converged and focused to provide illumination of multiple colors or composite light sources.

Benefits of technology

This improves the convenience and accuracy of endoscopy in identifying and displaying cells in different organs and tissues at different depths.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a light source module and an endoscope, and relates to the technical field of optical medical instruments. The light source module comprises a light source, a light combining element, a collimation assembly and a focusing assembly. Each light source corresponds to one collimation assembly and comprises a first light source and at least one second light source. The first light source is perpendicular to the second light source, and the light combining element is arranged at the intersection of a first light path emitted by the first light source and a second light path emitted by the second light source. The focusing assembly is arranged at one end of the first light path away from the first light source. The collimating assembly is located between the light source and the light combining element. The first light path is collimated by the collimation assembly, penetrates through the light combination element and is focused by the focusing assembly. And the second light path is collimated by the collimation assembly, reflected on the light combination element, converged with the first light path and arrived at the focusing assembly. The light source module provided by the utility model can effectively improve the detection convenience and accuracy of the endoscope.
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Description

TECHNICAL FIELD

[0001] The utility model relates to optical medical instrument technical field, specifically, relate to a light source module and endoscope. BACKGROUND

[0002] Endoscope is a kind of common optical medical instrument, and it mainly provides observation illumination and obtains field of view image in the diagnosis treatment and operation for observing the field of view area of human body cavity.In prior art, the light source of endoscope is generally a single color light or complex color light.

[0003] However, when different organs, different depth tissue cells need to be identified and displayed, single color light or complex color light source has not met the use demand. INVENTION CONTENTS

[0004] The utility model discloses a light source module and endoscope, which can at least partially solve the above technical problems.

[0005] Firstly, the utility model provides a light source module, the light source module includes light source, light combining element, collimation subassembly and focusing subassembly, each light source corresponds a collimation subassembly, and the light source includes first light source and at least one second light source;

[0006] The first light source and the second light source are vertically arranged, and the light combining element is arranged at the intersection of the first light path emitted by the first light source and the second light path emitted by the second light source;

[0007] The focusing subassembly is arranged at one end of the first light path away from the first light source, and the collimation subassembly is located between the light source and the light combining element;

[0008] After collimation of the first light path through the collimation subassembly, the first light path passes through the light combining element and is focused by the focusing subassembly;After collimation of the second light path through the collimation subassembly, the second light path is reflected on the light combining element, converges with the first light path, and reaches the focusing subassembly.

[0009] Optionally, each collimation subassembly includes a first collimation lens and a second collimation lens;

[0010] The first collimation lens is arranged between the light source and the second collimation lens;

[0011] The center line of the light source coincides with the center lines of the first collimation lens and the second collimation lens;

[0012] The light emitted by the light source passes through the first collimation lens and the second collimation lens in sequence to form parallel light.

[0013] Optionally, the focusing assembly comprises a first focusing lens, a second focusing lens and a focusing surface.

[0014] The second focusing lens is arranged between the first focusing lens and the focusing surface.

[0015] The center line of the focusing surface coincides with the center lines of the first focusing lens and the second focusing lens.

[0016] The light emitted by the light source passes through the first focusing lens and the second focusing lens in sequence and is focused on the focusing surface.

[0017] Optionally, the light source module comprises a plurality of light combining elements, and the light combining elements are dichroic mirrors.

[0018] The plurality of second light sources are arranged in sequence from near to far with respect to the first light source, and each second light source corresponds to a light combining element.

[0019] The light emitted by the first light source passes through each light combining element in sequence and reaches the focusing assembly.

[0020] The light emitted by each second light source is reflected by the corresponding light combining element and converges with the light emitted by the first light source to reach the focusing assembly.

[0021] Optionally, the first light source and each second light source are any one of ultraviolet light, blue light, green light, amber light and red light, and the first light source and each second light source are different.

[0022] Optionally, the light source module further comprises a color detector and a processor.

[0023] The color detector is arranged at the rear end of the light combining element and is used to receive the light emitted by each light source.

[0024] The processor is electrically connected with the color detector, the first light source and each second light source.

[0025] Optionally, the light combining element is a light combining prism, and the light source module comprises two second light sources.

[0026] The two second light sources are arranged opposite to each other and are located on the two sides of the light combining prism.

[0027] The light emitted by the first light source and the two second light sources passes through the light combining prism and converges on the side of the light combining prism away from the first light source to reach the focusing assembly.

[0028] Optionally, the light combining prism is coated with a short-wave pass film and a long-wave pass film.

[0029] Optionally, the first light source is a white light, and the second light sources are respectively an ultraviolet (UV) light and a near-infrared light.

[0030] In a second aspect, the utility model provides a kind of endoscope, and the endoscope includes the light source module of any one of the above.

[0031] The light source module and the endoscope provided by the utility model have the following beneficial effects:

[0032] By providing the light source module comprising the first light source and at least one second light source, the light emitted by the first light source and each second light source is collimated by the collimating assembly, the light of the first light source transmits through the light combining element, and the light of each second light source is reflected by the light combining element and converges with the light of the first light source, and finally focuses on the focusing surface by the focusing assembly. Since multiple light sources are used, the light source module provided by the utility model can select different colored light or composite light sources to illuminate the detected object when different organs and different depth of tissue cells need to be identified and displayed. The convenience and accuracy of detection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The schematic diagram of the light source module provided by the embodiment of the utility model is shown in the figure.

[0035] Figure 2 The structural schematic diagram of the collimating assembly provided by the embodiment of the utility model is shown in the figure.

[0036] Figure 3 The structural schematic diagram of the focusing assembly provided by the embodiment of the utility model is shown in the figure.

[0037] Figure 4 The schematic diagram of the light source module when the light combining element is a dichroic mirror provided by the embodiment of the utility model is shown in the figure.

[0038] Figure 5 The film coating curve graph when the light combining element is a dichroic mirror provided by the embodiment of the utility model is shown in the figure.

[0039] Figure 6 The schematic diagram of the color detector and the processor provided by the embodiment of the utility model is shown in the figure.

[0040] Figure 7The light source module is shown in a schematic diagram when the light combining element is a light combining prism provided by the embodiment of the present utility model;

[0041] Figure 8 The position schematic diagram of the short wave permeable film and the long wave permeable film provided by the embodiment of the present utility model is shown in a schematic diagram;

[0042] Figure 9 The film coating curve diagram when the light combining element is a light combining prism provided by the embodiment of the present utility model is shown in a schematic diagram;

[0043] Figure 10 The light spot after focusing provided by the embodiment of the present utility model is shown in a schematic diagram.

[0044] Icon: 01-light source module; 10-light source; 101-first light source; 102-second light source; 11-light combining element; 12-collimation assembly; 13-focusing assembly; 121-first collimation lens; 122-second collimation lens; 131-first focusing lens; 132-second focusing lens; 133-focusing surface; 14-color detector; 15-processor; 111-short wave permeable film; 112-long wave permeable film. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiment of the present utility model clearer, the technical scheme in the embodiment of the present utility model will be described clearly and completely below in combination with the drawings in the embodiment of the present utility model. Obviously, the described embodiment is a part of the embodiment of the present utility model, rather than all the embodiments. The components of the embodiment of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiment of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but only represents selected embodiments of the present utility model. Based on the embodiment in the present utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present utility model.

[0047] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0048] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0050] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] In the field of medical endoscopy, where it is necessary to identify and display tissue cells at different depths and in different organs, ordinary single white light sources are no longer sufficient for illuminating the object being examined. Different light source configurations are needed to adapt to the lighting requirements of various scenarios.

[0052] Based on the above, this specification provides a light source module 01 and an endoscope, which can effectively alleviate the above-mentioned technical problems.

[0053] Please see Figure 1 This embodiment provides a light source module 01, which includes a light source 10, a light combining element 11, a collimation component 12, and a focusing component 13. Each light source 10 corresponds to a collimation component 12, and the light source 10 includes a first light source 101 and at least one second light source 102.

[0054] The first light source 101 and the second light source 102 are arranged perpendicularly, and the light combining element 11 is arranged at the intersection of the first light path emitted by the first light source 101 and the second light path emitted by the second light source 102.

[0055] The focusing component 13 is located at the end of the first optical path away from the first light source 101, and the collimating component 12 is located between the light source 10 and the light combining element 11.

[0056] After being collimated by the collimating component 12, the first optical path passes through the combining element 11 and is focused by the focusing component 13. After being collimated by the collimating component 12, the second optical path is reflected by the combining element 11 and converges with the first optical path, reaching the focusing component 13.

[0057] like Figure 1 As shown, the light source module 01 includes a first light source 101 and at least one second light source 102. A light combining element 11 is disposed on the optical paths (i.e., the first optical path and the second optical path) of the first light source 101 and the second light source 102. Since the first light source 101 is disposed opposite to the focusing component 13, the light emitted by the first light source 101 is collimated into parallel light by the collimating component 12 and then directly passes through the light combining element 11 to reach the focusing component 13. Since the second light source 102 is disposed perpendicular to the first light source 101 and below the light combining element 11, the light emitted by the second light source 102 is collimated into parallel light by its corresponding collimating component 12 and then reflected by the light combining element 11, causing its optical path to coincide with the optical path of the first light source 101, and finally reaching the focusing component 13.

[0058] It should be noted that the terms "parallel" and "perpendicular" used in the embodiments of this specification refer to the effects that the light source module 01 can achieve under ideal conditions. They are only used to facilitate the description of this utility model and simplify the description. In the actual implementation process, certain errors will inevitably occur. This does not mean that the solution of this utility model can only achieve its effect under parallel or perpendicular conditions.

[0059] Optionally, each collimation assembly 12 includes a first collimating lens 121 and a second collimating lens 122.

[0060] The first collimating lens 121 is disposed between the light source 10 and the second collimating lens 122. The center line of the light source 10 coincides with the center lines of the first collimating lens 121 and the second collimating lens 122.

[0061] The light emitted by the light source 10 passes through the first collimating lens 121 and the second collimating lens 122 in sequence to form parallel light.

[0062] Since the light emitted by the light source 10 has an angle, typically a divergence angle of 120°, to reduce energy loss when passing through the light combining element 11, a setting such as... Figure 2 The combination of the first collimating lens 121 and the second collimating lens 122 shown collimates the light emitted from the light source 10, making its divergence angle less than 5° to approximately parallel light, thereby reducing energy loss after passing through the light combining device.

[0063] Optionally, the focusing assembly 13 includes a first focusing lens 131, a second focusing lens 132, and a focusing surface 133.

[0064] The second focusing lens 132 is disposed between the first focusing lens 131 and the focusing surface 133. The center line of the focusing surface 133 coincides with the center lines of the first focusing lens 131 and the second focusing lens 132.

[0065] The light emitted by the light source 10 passes through the first focusing lens 131 and the second focusing lens 132 in sequence and is focused on the focusing surface 133.

[0066] like Figure 3 As shown, similar to the collimating component 12, the focusing component 13 can be configured as a combination of a first focusing lens 131 and a second focusing lens 132. When the light emitted from the light source 10 passes through the light combining element 11, it passes sequentially through the first focusing lens 131 and the second focusing lens 132 of the focusing component 13 to form a beam of light with a specific convergence angle, and finally focuses onto the focusing surface 133.

[0067] Optionally, the light source module 01 includes multiple light combining elements 11, which are dichroic mirrors. Multiple second light sources 102 are arranged in parallel in order of increasing distance from the first light source 101, and each second light source 102 corresponds to one light combining element 11.

[0068] The light emitted by the first light source 101 passes through each light combining element 11 in sequence to reach the focusing component 13.

[0069] The light emitted by each second light source 102 is reflected by the corresponding light combining element 11 and converges with the light emitted by the first light source 101, reaching the focusing component 13.

[0070] When there are multiple light-combining elements 11, and the light-combining element 11 is a dichroic mirror, such as Figure 4 As shown, the light source module 01 can be configured as follows: Figure 4 The structure is shown. Each second light source 102 is arranged side-by-side in order of increasing distance from the first light source 101, and each second light source 102 corresponds to a light combining element 11. The light emitted by each second light source 102 is reflected by its corresponding light combining element 11, and then passes through subsequent light combining elements 11 to reach the focusing assembly 13. The light emitted by the first light source 101 passes through each light combining element 11 in sequence to reach the focusing assembly 13. Simultaneously, by adjusting the duty cycle of different wavelength light sources 10, different wavelength light sources 10 can output different radiant powers, thereby obtaining mixed light of different color wavelengths. Figure 5 As shown, this is the coating curve when the light combining element 11 is a dichroic mirror.

[0071] When the light combining element 11 is a dichroic mirror, the center of the dichroic mirror can be aligned with the central light path at a 45° angle. Since the dichroic mirror itself is a flat glass plate with a certain thickness, after parallel light is incident at a 45° angle, the light path is refracted, and the entire light path will be shifted.

[0072] Optionally, the first light source 101 and each of the second light sources 102 are any one of ultraviolet lamp, blue lamp, green lamp, amber lamp and red lamp, and the first light source 101 and each of the second light sources 102 are different.

[0073] For the light source module 01 provided by this utility model, since multiple light sources 10 can be set, the first light source 101 and multiple second light sources 102 can all be set to different colored lights or composite lights.

[0074] For example, the first light source 101 can be configured as an ultraviolet (UV) lamp. After passing through the collimation component 12, it produces approximately parallel ultraviolet light, which is then transmitted through the light combining element 11 closest to the first light source 101. The second light source 102 closest to the first light source 101 is configured as a blue lamp. After passing through the collimation component 12, it produces approximately parallel blue light, which is reflected by the light combining element 11 closest to the first light source 101 and combined with the transmitted ultraviolet light, then transmitted through the next light combining element 11. The second light source 102 closest to the previous second light source 102 is configured as a green lamp. After passing through the collimation component 12, it produces approximately parallel green light, which is reflected by its corresponding light combining element 11 and combined with the previously transmitted light, then transmitted through the next light combining element 11. The second light source 102 closest to the green lamp is configured as an amber lamp. After passing through the collimation component 12, it produces approximately parallel amber light, which is reflected by its corresponding light combining element 11 and combined with the previously transmitted light, then transmitted through the next light combining element 11. The second light source 102 closest to the amber lamp is set to a red lamp. After passing through the collimation component 12, it becomes approximately parallel red light, which is reflected on its corresponding light combining element 11 and combined with the light that has passed through previously, and then passes through the next light combining element 11. Similarly, more second light sources 102 can be added, and corresponding light combining elements 11 can be added simultaneously.

[0075] Optionally, the light source module 01 also includes a color detector 14 and a processor 15. The color detector 14 is located at the rear end of the light combining element 11 and is used to receive the light emitted by each light source 10.

[0076] The processor 15 is electrically connected to the color detector 14, the first light source 101, and each of the second light sources 102.

[0077] Due to the aging of light source 10, and the inconsistent aging rates of different light sources 10, long-term use will cause a shift in the color and color temperature of the mixed light emitted by light source module 01, resulting in a deterioration in the image quality of the endoscope and affecting the doctor's examination results. Therefore, settings such as... can be configured in light source module 01. Figure 6 The color detector 14 shown monitors the aging status of each wavelength light source 10 by monitoring the light intensity of each wavelength. Then, through algorithm processing, it automatically adjusts the input current of each wavelength light source 10, thereby maintaining a dynamic balance of the mixed light emitted by the light source module 01.

[0078] In an alternative implementation, to enable the color detector 14 to receive light emitted by all light sources 10, the color detector 14 can be placed at the rear end of the light combining element 11. The color detector 14 senses the light intensity of each wavelength and feeds it back to the processor 15. The processor 15 automatically adjusts the input current of each wavelength light source 10 through algorithm processing, so that the mixed light emitted by the light source module 01 can maintain dynamic balance.

[0079] Optionally, the light combining element 11 is a light combining prism, and the light source module 01 includes two second light sources 102. The two second light sources 102 are arranged opposite to each other and are located on both sides of the light combining prism.

[0080] The light emitted by the first light source 101 and the two second light sources 102 passes through the beam combining prism and converges on the side of the beam combining prism away from the first light source 101 to the focusing component 13.

[0081] like Figure 7 As shown, when the light combining element 11 is a light combining prism (i.e., an X-Cube prism), the second light source 102 can be set at opposite positions on both sides of the light combining prism.

[0082] Optionally, the first light source 101 is a white lamp, and the second light source 102 is an ultraviolet (UV) lamp and an 808nm near-infrared lamp.

[0083] In one optional embodiment, the first light source 101 can be configured as a white lamp, which, after being expanded and collimated by the collimating component 12, produces approximately parallel white light with a larger diameter. The second light source 102, positioned below, can be configured as an ultraviolet (UV) lamp, which, after being collimated by the collimating component 12, produces approximately parallel UV light. The second light source 102, positioned above, can be configured as an 808nm near-infrared lamp, which, after being collimated by the collimating component 12, produces approximately parallel near-infrared light. The three types of light pass through a beam combining prism, and the final combined light passes through a focusing component 13, converging onto a focusing surface 133. The central optical path of the light source 10 overlaps with that of the collimating component 12. The center of the beam combining element 11 overlaps with the central optical path and is placed at a 45° angle.

[0084] Optionally, the beam combining prism is coated with a short-wavelength pass film 111 and a long-wavelength pass film 112. Please refer to... Figure 7 as well as Figure 8 A short-pass film 111 (e.g., short-pass SP630 film) and a long-pass film 112 (e.g., long-pass LP420 film) can be deposited on the beam combining prism. Figure 9 As shown, the coating curve is when the light combining element 11 is a light combining prism.

[0085] In the above embodiments, when the light combining element 11 is a dichroic mirror, the optical parameters of the collimating component 12 can be as shown in Table 1.

[0086] Table 1

[0087]

[0088] Among them, surface 1 is the surface of the first collimating lens 121 that is close to the light source 10, surface 2 is the surface of the first collimating lens 121 that is away from the light source 10, surface 3 is the surface of the second collimating lens 122 that is close to the light source 10, and surface 4 is the surface of the second collimating lens 122 that is away from the light source 10 (these will continue to be used in the tables below in this specification).

[0089] When the light combining element 11 is a light combining prism, the optical parameters of the collimating component 12 can be as shown in Table 2.

[0090] Table 2

[0091]

[0092]

[0093] In this embodiment of the present invention, the optical parameters of the focusing component 13 can be as shown in Table 3.

[0094] Table 3

[0095]

[0096] Among them, surface 0 is the surface of the first focusing lens 131 that is close to the first light source 101, surface 1 is the surface of the first focusing lens 131 that is far away from the first light source 101, surface 2 is the surface of the second focusing lens 132 that is close to the first light source 101, and surface 3 is the surface of the second focusing lens 132 that is far away from the first light source 101.

[0097] With the above configuration, when the light emitted by each light source 10 is focused on the focusing surface 133, the resulting light spot can be as follows: Figure 10 As shown.

[0098] Based on the same inventive concept, this utility model provides an endoscope, which includes the light source module 01 of any of the above.

[0099] Regarding the endoscope described above, the specific functions and structures of each part have been described in detail in the embodiment of the light source module 01 provided in this specification, and will not be elaborated here.

[0100] By adopting the above-described solution in the embodiments of this utility model, it is possible to:

[0101] By providing a light source module including a first light source and at least one second light source, the light emitted by the first light source and each of the second light sources is collimated by a collimating component. The light from the first light source passes through a combining element, and the light from each of the second light sources is reflected by the combining element and converges with the light from the first light source. Finally, the light is focused by a focusing component onto the focusing surface. Because multiple light sources are used, the light source module provided by this invention can select different colors of light or composite light sources to illuminate the object being detected when it is necessary to identify and display tissue cells at different depths and organs. This improves the convenience and accuracy of the detection.

[0102] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A light source module, characterized in that, The light source module (01) includes a light source (10), a beam combining element (11), a collimation component (12), and a focusing component (13); each light source (10) corresponds to one collimation component (12), and the light source (10) includes a first light source (101) and a second light source (102); the beam combining element (11) is a beam combining prism, and the beam combining prism is coated with a short-wavelength pass film (111) and a long-wavelength pass film (112); the light source module (01) includes two second light sources (102). The first light source (101) and the second light source (102) are arranged perpendicularly, and the light combining element (11) is arranged at the intersection of the first light path emitted by the first light source (101) and the second light path emitted by the second light source (102); Two second light sources (102) are arranged opposite each other and are located on both sides of the light combining prism; the light emitted by the first light source (101) and the two second light sources (102) passes through the light combining prism and converges on the side of the light combining prism away from the first light source (101) to the focusing component (13); The focusing component (13) is disposed at one end of the first optical path away from the first light source (101), and the collimating component (12) is located between the light source (10) and the light combining element (11); After the first optical path is collimated by the collimating component (12), it passes through the light combining element (11) and is focused by the focusing component (13); After the second optical path is collimated by the collimating component (12), it is reflected on the combining element (11) and converges with the first optical path to reach the focusing component (13).

2. The light source module as described in claim 1, characterized in that, Each of the collimation components (12) includes a first collimating lens (121) and a second collimating lens (122); The first collimating lens (121) is disposed between the light source (10) and the second collimating lens (122); The center line of the light source (10) coincides with the center lines of the first collimating lens (121) and the second collimating lens (122); The light emitted by the light source (10) passes through the first collimating lens (121) and the second collimating lens (122) in sequence to form parallel light.

3. The light source module as described in claim 1, characterized in that, The focusing assembly (13) includes a first focusing lens (131), a second focusing lens (132), and a focusing surface (133). The second focusing lens (132) is disposed between the first focusing lens (131) and the focusing surface (133); The center line of the focusing surface (133) coincides with the center lines of the first focusing lens (131) and the second focusing lens (132); The light emitted by the light source (10) passes sequentially through the first focusing lens (131) and the second focusing lens (132) and is focused on the focusing surface (133).

4. The light source module as described in claim 1, characterized in that, The light source module (01) includes multiple light combining elements (11), and the light combining element (11) is a dichroic mirror; Multiple second light sources (102) are arranged side by side in order of increasing distance from the first light source (101), and each second light source (102) corresponds to one of the light combining elements (11); The light emitted by the first light source (101) passes sequentially through each of the light combining elements (11) to reach the focusing component (13); The light emitted by each of the second light sources (102) is reflected by the corresponding light combining element (11) and converges with the light emitted by the first light source (101) to reach the focusing component (13).

5. The light source module as described in claim 4, characterized in that, The first light source (101) and each of the second light sources (102) are any one of ultraviolet lamp, blue lamp, green lamp, amber lamp and red lamp, and the first light source (101) and each of the second light sources (102) are different.

6. The light source module as described in claim 5, characterized in that, The light source module (01) also includes a color detector (14) and a processor (15); The color detector (14) is disposed at the rear end of the light combining element (11) and is used to receive the light emitted by each of the light sources (10); The processor (15) is electrically connected to the color detector (14), the first light source (101) and each of the second light sources (102).

7. The light source module as described in claim 1, characterized in that, The first light source (101) is a white lamp, and the second light source (102) is an ultraviolet (UV) lamp and a near-infrared lamp, respectively.

8. An endoscope, characterized in that, The endoscope includes the light source module (01) as described in any one of claims 1 to 7.