CN116471976A

CN116471976A - Endoscope camera system and light source host thereof

Info

Publication number: CN116471976A
Application number: CN202080106721.4A
Authority: CN
Inventors: 王飞; 徐涛; 袁小文
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2023-07-21
Also published as: WO2022141246A1

Abstract

A light source host for an endoscope camera system, comprising a controller, a first light source, a second light source, an optical coupling device (3), a power detection device (304) and a light source output interface (303); the first light source is used for generating a first type light beam and outputting the first type light beam to a first light input end of the optical coupling device (3) through a first light path; the second light source is used for generating a second type of light beam and outputting the second type of light beam to a second light input end of the optical coupling device (3) through a second light path; the optical coupling device (3) at least comprises a light combining lens, and the light combining lens is used for mixing a first type of light beam input from a first light input end and a second type of light beam input from a second light input end to obtain a combined light beam and outputting the combined light beam through a light source output interface (303); the power detection device (304) is arranged on the optical path of the first type light beam and is used for detecting the power of the first type light beam, so that the power detection function of the first light source is realized.

Description

Endoscope camera system and light source host thereof

Technical Field

The application relates to an endoscopic camera system, in particular to a light source host of the endoscopic camera system.

Background

In recent years, endoscope minimally invasive surgery has been widely used in the medical field. The NIR light source is an important component of an endoscope system, and can be used for common endoscope illumination and ICG-NIR fluorescence imaging during operation. Under the action of fluorescence navigation, the lymph nodes can be rapidly and accurately developed, marked and positioned, the accurate tumor excision is realized, the tumor residue is avoided, the surgical wound of a patient is greatly reduced, and the surgical time is shortened. The laser is used as an important component for ICG-NIR fluorescence imaging, the infrared light output power of the laser must meet certain standards, and exceeding the power can cause damage to human tissues, and the power is smaller than the power, so that the optimal operation effect is not achieved; in addition, the infrared light output power of the laser decays with the service time of the laser. Therefore, the infrared output light power of the laser needs to be monitored in real time, and the abnormal situation can be timely reported to remind a user.

At present, the NIR light source does not detect the infrared light output power of the laser, and can not give an alarm even when abnormality occurs, but the FQC can test the laser power before leaving the factory to determine whether the product requirement is met. In the use, when the light source drive plate breaks down, when leading to voltage or electric current of laser instrument to increase, can all influence laser instrument infrared light output, cause the injury to human tissue. And meanwhile, the service life of the laser cannot be detected, and a user cannot be reminded that the service life of the laser is longer than that.

Technical problem

The embodiment of the application provides an endoscope camera system and a light source host thereof, which realize a light source power detection function by arranging a light source power detection device.

Technical solution

In one aspect, an embodiment of the present application provides a light source host for an endoscope camera system, including a controller, a first light source, a second light source, an optical coupling device, a power detection device, and a light source output interface;

the first light source is used for generating a first type of light beam under the control of the controller and outputting the first type of light beam to a first light input end of the optical coupling device through a first light path;

the second light source is used for generating a second type of light beam under the control of the controller and outputting the second type of light beam to a second light input end of the optical coupling device through a second light path;

the optical coupling device at least comprises a light combining lens, wherein the light combining lens is used for mixing a first type of light beam input from the first optical input end and a second type of light beam input from the second optical input end to obtain a combined light beam, and outputting the combined light beam through the light source output interface;

the power detection device is arranged on the optical path of the first type light beam and is used for detecting the power of the first type light beam.

In one embodiment, the light combining lens includes a dichroic mirror.

In an embodiment, the power detection device is arranged between the first optical input end of the optical coupling device and the light combining lens.

In an embodiment, the optical coupling device further comprises a reflecting mirror disposed between the first light input end and the light combining mirror, the reflecting mirror being configured to reflect the first type of light beam input by the first light input end to the light combining mirror and allow a part of the light of the first type of light beam to be transmitted to the power detecting device, so that the power detecting device detects the power of the first type of light beam based on the transmitted light.

In one embodiment, the mirror plate is a dichroic mirror.

In an embodiment, the power detection device comprises a photosensor.

In an embodiment, the power detection device further includes a filter disposed at a front end of the photosensor, for attenuating the first type of light beam input to the photosensor to be within a range of the photosensor.

In an embodiment, the photosensor is arranged offset with respect to the incoming first type of light beam to receive a portion of the first type of light beam.

In an embodiment, the first light source is a near infrared light source and the second light source is a white light source.

In an embodiment, the first light source is a laser light source and the second light source is an LED light source.

In an embodiment, the power detection device is further configured to output a detection result to the controller for processing.

In an embodiment, the controller is further configured to determine an operating state of the first light source according to the acquired power of the first kind of light beam.

In an embodiment, the controller is configured to determine an operating state of the first light source according to the acquired power of the first type of light beam, and includes: the controller is used for outputting information representing the service life of the first light source when determining that the power of the first type of light beam is lower than a preset threshold value.

In an embodiment, the first light source is provided with a plurality of working grades, and the first light source correspondingly outputs first type light beams with different power values or different power ranges under each working grade; the controller is used for outputting information indicating the service life of the first light source when the power of the first type light beam is determined to be lower than a preset threshold value under the condition that the first light source works at a working level corresponding to a maximum power value or a maximum power range.

In an embodiment, the controller is configured to determine an operating state of the first light source according to the acquired power of the first type of light beam, and includes: the controller is used for outputting alarm information representing that the first light source is abnormal when the power of the first type light beam is determined not to be within a preset threshold range.

In an embodiment, the first light source is provided with a plurality of working levels, and the first light source correspondingly outputs the first kind of light beams with different power values or different power ranges under each working level, and each working level corresponds to a different preset threshold range.

In an embodiment, the controller is further configured to: and executing a self-checking working mode when the light source host is started, so as to determine the working state of the first light source.

In an embodiment, the controller is further configured to perform feedback control on the output power of the first light source according to the obtained power of the first type light beam, so that the power of the first type light beam output by the first light source is within a preset value or a preset range.

On the other hand, the embodiment of the application also provides an endoscope camera system, including light source host computer, light guide beam, endoscope, optical bayonet, communication cable, camera host computer, display, video connecting wire and the endoscope camera that provide in the above-mentioned arbitrary embodiment, the light source host computer passes through the light guide beam with the endoscope is connected, the one end of endoscope camera passes through optical bayonet with the endoscope is connected, the other end of endoscope camera passes through communication cable with the camera host computer is connected, the camera host computer passes through the video connecting wire with the display is connected.

Advantageous effects

The embodiment of the application provides an endoscope camera system and light source host computer thereof, be provided with power detector on the light path of the first kind light beam of light source host computer to detect the power of first kind light beam, thereby realized the power detection function of first light source.

Drawings

FIG. 1 is a schematic diagram of an endoscopic imaging system in one embodiment;

FIG. 2 is a schematic diagram of a light source host according to an embodiment;

FIG. 3 is a schematic diagram of an optical coupling device in one embodiment;

fig. 4 is a partial cross-sectional view of an optical coupling device in one embodiment.

Embodiments of the invention

Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, some operations associated with the present application have not been shown or described in the specification to avoid obscuring the core portions of the present application, and may not be necessary for a person skilled in the art to describe in detail the relevant operations based on the description herein and the general knowledge of one skilled in the art.

Furthermore, the described features, operations, or characteristics of the description may be combined in any suitable manner in various embodiments. Also, various steps or acts in the method descriptions may be interchanged or modified in a manner apparent to those of ordinary skill in the art. Thus, the various orders in the description and drawings are for clarity of description of only certain embodiments, and are not meant to be required orders unless otherwise indicated.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated.

The invention will be described in further detail below with reference to the drawings by means of specific embodiments.

As shown in fig. 1, in one embodiment an endoscopic imaging system 1000 is provided, the endoscopic imaging system 1000 comprising a light source 10, a light guide 20, a rigid tube endoscope 30, an optical bayonet 40, an endoscopic camera 50, a communication cable 81, an imaging host 60, a display 70, and a video connection line 82. The camera host 60 is connected to the endoscope camera 50 through a communication cable 81, and an image signal obtained by the endoscope camera 50 is transmitted to the camera host 60 through the communication cable 81 to be processed. In some embodiments, the communication cable 81 may be an optical communication cable, such as an optical fiber; the endoscope camera 50 converts an image signal (an electric signal) into an optical signal, and the optical signal is transmitted to the camera host 60 by the communication cable 81, and the camera host 60 converts the optical signal into an electric signal. The camera host 60 is connected to the display 70 through a video connection line 82, and is used for transmitting video signals to the display 70 for displaying. It will be appreciated by those skilled in the art that fig. 1 is merely an example of an endoscopic imaging system 1000 and is not limiting of the endoscopic imaging system 1000, and that the endoscopic imaging system 1000 may include more or fewer components than shown in fig. 1, or may combine certain components, or different components, e.g., the endoscopic imaging system 1000 may further include dilators, smoke control devices, input-output devices, network access devices, etc.

The light source 10 is used to provide an illumination source to the site 100 to be observed. The illumination sources include a visible light illumination source and a laser illumination source (e.g., near infrared light) corresponding to the fluorescent agent. Light source 10 includes, but is not limited to, a laser light source, an LED light source, a narrowband light source, or a laser diode.

In the present embodiment, the light source 10 includes a visible light source and a laser light source corresponding to a fluorescent agent. The visible light source is an LED light source. In an embodiment, the visible light source may provide a plurality of monochromatic lights with different wavelength ranges, such as blue light, green light, red light, and the like, respectively. In other embodiments, the visible light source may also provide a combined light of the plurality of monochromatic lights, or a broad spectrum white light source. The monochromatic light has a wavelength in the range of approximately 400nm to 700nm. The laser light source is used for generating laser. The laser is for example Near Infrared (NIR). The peak wavelength of the laser takes at least any 1 value in the 780nm or 808nm range.

Since the light source 10 can simultaneously supply the continuous visible light and the laser light corresponding to the fluorescent agent to the site to be observed, the efficiency of the camera 50 for collecting the visible light image signal and the fluorescent image signal reflected by the site to be observed 100 is improved.

Wherein a contrast agent, such as indocyanine green (Indocyanine Green; ICG), is introduced intravenously or subcutaneously in the site to be observed 100 prior to imaging with the endoscopic imaging system 1000 in order to image tissue structures and functions (e.g., blood/lymph/bile in the vessel) that are not readily visible with standard visible light imaging techniques. The site to be observed 100 includes, but is not limited to, the blood circulation system, the lymphatic system, and tumor tissue. ICG is commonly called indocyanine green, green needle for diagnosis and indocyanine green, is a common contrast agent in clinical diagnosis of cardiovascular system diseases at present, and is widely applied to choroid and retinal blood vessel imaging. Fluorescence may be generated when the contrast agent in the site to be observed 100 absorbs the laser light generated by the laser light source corresponding to the fluorescent agent.

Fig. 2 is a schematic structural diagram of a light source host according to an embodiment. In this embodiment, the light source host includes two light sources, i.e., a first light source and a second light source. Specifically, the first light source is used as a laser light source for emitting near infrared light; the second light source is an LED light source, and is used for emitting white light for illustration. In other embodiments, the types of the light sources may be selected according to the actual products, and the number of the light sources is not limited to two, but may be more, and then the light beams output by the light sources are combined to obtain the required combined light beam.

The light source host mainly comprises a box body 1, a laser light source 2, an optical coupling device 3, an optical fiber 4, a light source output interface 5 and an LED light source 6.

The box body 1 is of a square structure, a containing cavity is formed in the box body 1, and the laser light source 2, the optical coupling device 3, the optical fiber 4 and the light source output interface 5 are respectively arranged in the box body 1. One side of the box body 1 is a detachable surface, and the detachable side is used for assembling and maintaining the light source host.

The laser light source 2 is installed at the rear end (the front end of the light emitted by the light source host) in the case 1, and the laser light source 2 has a transmitting end for transmitting laser light.

The optical coupling device 3 is arranged at the front end in the box body 1, the rear end of the optical coupling device 3 is provided with a laser incidence end and a white light incidence end, and the front end of the optical coupling device 3 is provided with an emergent end. The optical coupling device 3 comprises a plurality of lenses, the lenses form Y-shaped light paths, and the optical coupling device 3 is used for coupling incident laser and white light into mixed light to be emitted.

A certain interval is arranged between the laser light source 2 and the optical coupling device 3, the emergent end of the laser light source 2 and the laser incident end of the optical coupling device 3 are connected through an optical fiber wire 4, and the optical fiber wire 4 is used for transmitting laser emitted by the laser light source 2 into the optical coupling device 3. The laser light source 2 and the optical fiber 4 can be of an integrated structure, and the laser light source 2 and the optical fiber 4 can also be of a detachable structure.

The LED light source 6 is arranged at the rear end of the optical coupling device 3, the LED light source 6 is connected with the white light incident end of the optical coupling device 3, the LED light source 6 is an LED light source, and the LED light source 6 is used for emitting white light into the optical coupling device 3.

The light source host also comprises a power supply 7 and a main control board 8, wherein the power supply 7 and the main control board 8 are arranged in the box body 1, and the laser light source 2, the LED light source 6 and the power supply 7 are respectively connected with the main control board 8. The power supply 7 provides electric energy for devices in the box 1, the main control board 8 is used for controlling the laser light source 2 to emit laser light and the LED light source 6 to emit white light, the main control board 8 can be a circuit board provided with a controller, and the controller can comprise one or more processors to execute programs to realize relevant functional steps mentioned in the application.

The light source output interface 5 has a flat cake-shaped structure, and the light source output interface 5 can be directly installed on the side wall of the case 1, and is used for connecting the light guide beam 20 so as to output the light of the light source host to the endoscope 30. (as shown in FIG. 1)

It should be noted that, the structure of the light source host provided in the embodiment of the present application is only a specific embodiment, and in other embodiments, the structure may be changed, for example, omitting or adding some components, changing the layout positions of some components, etc.

As shown in fig. 3-4, the optical coupling device 3 in the light source host is schematically shown. The optical coupling device 3 is provided with a laser light incident end 301, a white light incident end 302, and a light source output interface 303 (5). In this embodiment, the power detection device 304 is also disposed on the optical coupling device 3 and is located on the laser path.

In one embodiment, the optical coupling device 3 may mix the input laser beam and the white light beam through a light combining lens (not shown in the figure), and output the combined light beam through the light source output interface 303. Specifically, the light combining lens includes a dichroic mirror. For example, a dichroic mirror reflects a plane input laser beam, a transmission plane inputs a white light beam, and the reflected laser beam and the transmitted white light beam form a combined beam. And the light combining lens may be a lens, or a combination of a plurality of lenses, for example, may further include a condensing lens (as shown by 310 in fig. 4) for homogenizing the laser beam and inputting the homogenized laser beam to the dichroic mirror.

In one embodiment, the power detection device 304 is disposed on the optical path between the laser light incident end 301 and the light converging lens.

In one embodiment, the power detection device 304 faces the laser light incident end 301 to receive the laser light incident from the laser light incident end 301, thereby detecting the laser power.

Generally, the laser power is relatively large, and for most power detection devices 304, light with high power cannot be received and detected.

In one embodiment, the power detection device 304 is offset with respect to the laser entrance end 301 to receive only a portion of the incident laser beam, avoiding the received laser beam from exceeding the range of the power detection device 304.

In another embodiment, the optical coupling device 3 further includes a reflecting mirror 307 disposed between the laser light incident end 301 and the light combining mirror. The reverse mirror 307 is used to reflect the laser beam inputted from the laser incident end 301 to the light combining mirror and allow part of the light of the laser beam to be transmitted to the power detection device 304 for the power detection device 304 to detect the power of the laser beam based on the transmitted light. Specifically, the mirror 307 will reflect most of the laser beam to the combiner mirror, while allowing a small portion of the laser beam to be transmitted to the power detection device 304 for power detection.

Especially for NIR light sources, ICG-NIR fluorescence imaging is achieved because the NIR light source needs to couple white light and near infrared light. There are many lenses and mirrors in the optical coupling device, and these lenses interfere with the result of the power detection device, so the placement of the power detection device is very important. In this embodiment, the power detection device is provided with the transmission light path of the reflection lens 307, on one hand, the intensity of the light output to the power detection device can be reduced, so that the power detection device can use a low-range device; on the other hand, when the power detection device is positioned at the position, the power detection device is not interfered by other light in the optical coupling device, so that the accuracy of power detection is ensured.

In one embodiment, the mirror plate 307 is a dichroic mirror.

In one embodiment, the power detection device 304 includes a photosensor 309. To further ensure that the laser beam received by the photosensor 309 does not exceed the range, the power detection device 304 further includes a filter 308 disposed at a front end of the photosensor 309 for attenuating the laser beam input to the photosensor 309 to within the range of the photosensor 309. Of course, in some examples, the photosensor 309 may also be offset to receive only a portion of the input laser beam. In other embodiments, the filter 308 may not be used, or the power detection sensor may not need to be biased, if a power detection sensor of sufficient range is employed.

In this embodiment, the laser incident end 302 may further be sequentially provided with a laser lens 305 and a diffusion sheet 306, so that the input laser beam is diffused and homogenized and then output to the reflection lens 307.

The application also provides an embodiment, wherein the power detection device 304 in the light source host is electrically connected with the controller in the main control board 8, and is used for outputting the detection result to the controller for processing. Specifically, the power detection device 304 may directly detect the power of the obtained laser beam, and then send the power data to the controller, or may send the detected original signal to the controller, and then calculate the power of the laser beam by the controller.

In this embodiment, the controller is configured to determine an operating state of the laser light source according to the obtained power of the laser beam. Specifically, the working state of the laser light source may include a service life state of the laser light source, normal and abnormal working states of the laser light source, and the like.

The laser source usually has a certain service life, and after the service life is exceeded, the power of the laser source may be different from the actual power to be controlled, and an unstable power may occur, so that the laser source needs to be replaced. In the prior art, however, users can only subjectively judge the service life of the product to see whether the service life of the product is longer than the service life of the product. In this case, it is possible to replace the laser light source in advance, increasing the use cost; it is also possible that the laser source is not replaced after the service life is exceeded, which presents a safety problem for use.

After the power of the laser beam is detected by the power detection device 304, the light source host provided in this embodiment can determine the service life of the light source based on the detected power information. Specifically, the controller is used for outputting information representing the service life end of the laser light source when determining that the power of the laser beam is lower than a preset threshold value. For example, text information of the end of the service life of the laser light source is displayed on a display screen of the light source host, or corresponding audible and visual alarm information is displayed to a user.

The light source life detection may be to perform a self-checking operation mode when the light source host is started to determine life information of the laser light source. Or monitoring can be performed in real time in the use process of the light source host.

The light source host provided by the embodiment can automatically detect the service life of the light source and remind a user, so that the situation that the user replaces the light source in advance or continues to use after the service life of the light source is exceeded is avoided, and the use safety of a product is ensured.

In one embodiment, the laser light source is provided with a plurality of working grades, and the laser light source correspondingly outputs laser beams with different power values or different power ranges under each working grade; the controller is used for outputting information indicating the service life of the laser light source when the power of the laser light beam is determined to be lower than a preset threshold value under the condition that the laser light source works at a maximum power value or a working level corresponding to a maximum power range. Generally, if the laser light source is provided with a plurality of working grades, even if the laser light source is attenuated due to the use time, the power of the actually output laser beam can still meet the illumination requirement only by setting the laser light source at the maximum power value or the working grade corresponding to the maximum power range, and the laser light source can be used continuously. Therefore, in the light source host product provided with a plurality of working grades, the power of the laser beam at the moment can be detected when the laser light source works at the working grade corresponding to the maximum power value or the maximum power range, so as to judge whether the service life of the light source is ended or not, and the situation that the light source is replaced in advance when the light source still can meet the use requirement when detecting at other working grades is avoided.

In the use process of the light source, the laser light source may be abnormal due to various problems, so that the output power is not in a control range, or power fluctuation occurs, and the use is affected.

In another embodiment, the controller is configured to output alarm information indicating abnormality of the laser light source when the power of the laser beam is determined not to be within a preset threshold range, so as to prompt the user that the light source is abnormal, and then perform surgery as soon as possible to solve the abnormality of the light source, so as to ensure accuracy of information and safety of surgery.

Similarly, the light source abnormality detection may be to execute a self-checking operation mode when the light source host is started to determine abnormality information of the laser light source. Or monitoring can be performed in real time in the use process of the light source host.

In an embodiment, the laser light source is provided with a plurality of working levels, and the laser light source correspondingly outputs laser beams with different power values or different power ranges under each working level, and each working level corresponds to a different preset threshold range. Generally, the upper and lower limit values of the corresponding preset threshold ranges are also larger for the higher power values or higher power ranges of the operation level. So that the judged preset threshold range can be matched with different working grades when the abnormality of the light source is detected.

In an embodiment, the controller is further configured to perform feedback control on the output power of the laser light source according to the obtained power of the laser light beam, so that the power of the laser light beam output by the laser light source is within a preset value or a preset range. The power output by the laser light source can be more stable through the light source power feedback control. Specifically, the preset value or the preset range can be manually set by a user, and the light source host automatically adjusts the output power of the light source according to the setting, so that the light source host is stabilized within the set value or the set range. Adjusting the power of the laser light source may be achieved by adjusting the drive current of the laser light source.

It should be noted that, in the host having a plurality of light sources, a power detection device may be respectively disposed on the light beam paths corresponding to one or more of the light sources, or even all of the light sources, so as to detect the power of the light beam output by the corresponding light source. Under the condition that the plurality of light sources are provided with the power detection devices, the corresponding service life detection and related information generated by the abnormal alarm function can also distinguish different light sources, so that a user can conveniently distinguish which light source the related information belongs to.

The foregoing description of the invention has been presented for purposes of illustration and description, and is not intended to be limiting. Variations of the above embodiments may be made by those of ordinary skill in the art in light of the present teachings.

Claims

A light source host is used for an endoscope camera system and is characterized by comprising a controller, a first light source, a second light source, an optical coupling device, a power detection device and a light source output interface;

the first light source is used for generating a first type of light beam under the control of the controller and outputting the first type of light beam to a first light input end of the optical coupling device through a first light path;

the second light source is used for generating a second type of light beam under the control of the controller and outputting the second type of light beam to a second light input end of the optical coupling device through a second light path;

the optical coupling device at least comprises a light combining lens, wherein the light combining lens is used for mixing a first type of light beam input from the first optical input end and a second type of light beam input from the second optical input end to obtain a combined light beam, and outputting the combined light beam through the light source output interface;

the power detection device is arranged on the optical path of the first type light beam and is used for detecting the power of the first type light beam.
The light source host of claim 1, wherein the light combining lens comprises a dichroic mirror.
A light source host as claimed in claim 1 or 2, characterized in that the power detection device is arranged between the first light input of the light coupling device and the light combining lens.
The light source host computer of claim 3, wherein the light coupling device further comprises a reflecting mirror plate disposed between the first light input end and the light combining mirror plate, the reflecting mirror plate being configured to reflect the first type of light beam inputted from the first light input end to the light combining mirror plate and allow a part of the light of the first type of light beam to be transmitted to the power detecting device, for the power detecting device to detect the power of the first type of light beam based on the transmitted light.
The light source host machine of claim 4, wherein the mirror plate is a dichroic mirror.
A light source host as recited in any one of claims 1-5, wherein the power detection device comprises a photosensor.
The light source host computer of claim 6, wherein the power detection device further comprises a filter disposed at a front end of the photosensor for attenuating the first type of light beam input to the photosensor to within a range of the photosensor.
A light source host as claimed in claim 6 or claim 7, in which the photosensor is arranged offset with respect to the incoming first type of beam to receive part of the first type of beam.
The light source host of any one of claims 1-8, wherein the first light source is a near infrared light source and the second light source is a white light source.
The light source host of claim 9, wherein the first light source is a laser light source and the second light source is an LED light source.
The light source host of any one of claims 1-10, wherein the power detection device is further configured to output a detection result to the controller for processing.
The light source host of claim 11, wherein the controller is further configured to determine an operating state of the first light source based on the acquired power of the first type of light beam.
The light source host of claim 12, wherein the controller is configured to determine the operating state of the first light source based on the acquired power of the first type of light beam, comprising: the controller is used for outputting information representing the service life of the first light source when determining that the power of the first type of light beam is lower than a preset threshold value.
The light source host of claim 13, wherein the first light source is provided with a plurality of operation levels, and the first light source outputs a first type of light beam with a different power value or a different power range at each operation level; the controller is used for outputting information indicating the service life of the first light source when the power of the first type light beam is determined to be lower than a preset threshold value under the condition that the first light source works at a working level corresponding to a maximum power value or a maximum power range.
The light source host of any one of claims 12-14, wherein the controller is configured to determine the operating state of the first light source based on the acquired power of the first type of light beam, comprising: the controller is used for outputting alarm information representing that the first light source is abnormal when the power of the first type light beam is determined not to be within a preset threshold range.
The light source host of claim 15, wherein the first light source is provided with a plurality of operation levels, the first light source outputting a first type of light beam of a different power value or a different power range at each operation level, each operation level corresponding to a different one of the preset threshold ranges.
The luminaire host of any one of claims 12-16, wherein said controller is further configured to: and executing a self-checking working mode when the light source host is started, so as to determine the working state of the first light source.
The light source host of any one of claims 11-17, wherein the controller is further configured to feedback control the output power of the first light source according to the obtained power of the first light beam, so that the power of the first light beam output by the first light source is within a preset value or a preset range.
An endoscope camera system, comprising the light source host, a light guide beam, an endoscope, an optical bayonet, a communication cable, a camera host, a display, a video connecting wire and an endoscope camera according to any one of claims 1-18, wherein the light source host is connected with the endoscope through the light guide beam, one end of the endoscope camera is connected with the endoscope through the optical bayonet, the other end of the endoscope camera is connected with the camera host through the communication cable, and the camera host is connected with the display through the video connecting wire.