Method for controlling laser light emission radiation power and endoscope cold light source

Abstract

The present disclosure provides a laser light output radiation power control method and an endoscope cold light source. The adjustment precision of the light output radiation power is improved. The method comprises the following steps: preliminarily adjusting the laser light output radiation power of the endoscope cold light source according to a user-set voltage division resistor adjustment instruction, to obtain an initial laser light output radiation power; if a first power error value obtained based on the initial laser light output radiation power and a maximum laser light output radiation power is within a first specified range, adjusting a light sensitivity coefficient, adjusting the initial laser light output radiation power by using the adjusted light sensitivity coefficient, to obtain an intermediate laser light output radiation power; obtaining a second power error value through the intermediate laser light output radiation power and the maximum laser light output radiation power; if the second power error value is not within a second specified range, returning to the step of adjusting the light sensitivity coefficient until the obtained second power error value is within the second specified range, and then determining the intermediate laser light output radiation power as a target laser light output radiation power.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of information processing technology, in particular to a laser light emission radiation power control method and an endoscope cold light source. BACKGROUND

[0002] According to the working spectral range classification, the current medical endoscope camera system can be divided into white light endoscope camera system and fluorescence endoscope camera system. Since the fluorescence endoscope system has both white light color imaging function and fluorescence imaging function, and can realize the fusion of fluorescence imaging on the basis of white light color image, the fluorescence endoscope camera system is a new type of medical endoscope technology that has been widely used.

[0003] The fluorescence endoscope camera system can realize the fusion of fluorescence imaging on the basis of white light color image, which is realized based on the fluorescence cold light source. The near-infrared laser of the fluorescence cold light source is usually realized by using a laser light emission module. The fluorescence cold light source supports simultaneous output of near-infrared laser and white light, and the near-infrared laser must be a 3R medical laser light source, which has strict requirements on the maximum light emission radiation power, and the value of the maximum light emission radiation power must be strictly limited on the control and driving module.

[0004] In combination Figure 1 As shown in the figure, the endoscopic examination or surgery is basically in the form of dynamic video to assist the doctor in the actual operation stage. After the doctor operates the endoscope into the human body, the laser is emitted by the endoscope cold light source, then the image of the human body is collected by the lens on the endoscope device and displayed, and the range irradiated by the lens is presented on the display of the endoscope device with the movement of the lens of the endoscope device. The environment around the lesion can be clearly seen, and the movement and surgical operation can be three-dimensionally and intuitively performed with the aid of surgical instruments. Within the limited maximum light emission radiation power, the closer the laser light emission power of the endoscope cold light source is to the maximum light emission radiation power, the stronger the fluorescence imaging effect is. The smaller the edge movement and change of the fluorescence imaging when the measured object moves far away, the more conducive to the doctor to accurately determine the lesion area. Therefore, the precision of the adjustment of the laser light emission power in the endoscope cold light source is particularly important. The higher the adjustment precision is, the more conducive to the doctor to accurately determine the lesion area.

[0005] In the prior art, the adjustment of the laser light emission power of the endoscope cold light source can only be coarsely adjusted by adjusting the voltage dividing resistor to coarsely adjust the light emission driving value of the endoscope cold light source, which results in low precision of the adjustment of the laser light emission radiation power in the endoscope cold light source. SUMMARY

[0006] The control method for laser light emission radiation power and the cold light source of the endoscope provided in the exemplary embodiments of the present disclosure first preliminarily adjust the laser light emission radiation power of the cold light source of the endoscope, and then further adjust the laser light emission radiation power in the cold light source of the endoscope by adjusting the light sensitivity coefficient, so as to finely adjust the laser light emission radiation power, and make the laser light emission power of the cold light source of the endoscope most approach the maximum laser light emission radiation power, thereby improving the adjustment accuracy of the laser light emission radiation power, and enhancing the fluorescence imaging effect of the cold light source of the endoscope.

[0007] The first aspect of the present disclosure provides a control method for laser light emission radiation power, the method comprising:

[0008] In response to a voltage division resistor adjustment instruction sent by a user, the laser light emission radiation power of the cold light source of the endoscope is preliminarily adjusted according to the voltage division resistor adjustment instruction, to obtain an initial laser light emission radiation power of the cold light source of the endoscope, wherein the laser light emission radiation power is the light emission radiation power of near-infrared laser;

[0009] Based on the initial laser light emission radiation power and a pre-set maximum laser light emission radiation power, a first power error value is obtained;

[0010] If the first power error value is within a first specified range, the light sensitivity coefficient is adjusted to obtain an adjusted light sensitivity coefficient;

[0011] The initial laser light emission radiation power is adjusted by using the adjusted light sensitivity coefficient to obtain an intermediate laser light emission radiation power;

[0012] A second power error value is obtained through the intermediate laser light emission radiation power and the maximum laser light emission radiation power;

[0013] If the second power error value is not within a second specified range, after the intermediate laser light emission radiation power is determined as the initial laser light emission radiation power, the step of adjusting the light sensitivity coefficient is returned to, until the second power error value obtained is within the second specified range, then the adjustment of the light sensitivity coefficient is ended, and the intermediate laser light emission radiation power is determined as the target laser light emission radiation power of the cold light source.

[0014] In the present embodiment, the laser light emission radiation power of the cold light source of the endoscope is preliminarily adjusted, and then further adjusted by adjusting the light sensitivity coefficient, so as to finely adjust the laser light emission radiation power, and make the laser light emission power of the cold light source of the endoscope most approach the maximum laser light emission radiation power, thereby improving the adjustment accuracy of the laser light emission radiation power, and enhancing the fluorescence imaging effect of the cold light source of the endoscope.

[0015] In one embodiment, the first power error value is obtained based on the initial laser light output radiation power and a preset maximum laser light output radiation power, including:

[0016] The difference between the initial laser light output radiation power and the maximum laser light output radiation power is determined as the first power error value.

[0017] The second power error value is obtained based on the intermediate laser light output radiation power and the maximum laser light output radiation power, including:

[0018] The difference between the intermediate laser light output radiation power and the maximum laser light output radiation power is determined as the second power error value.

[0019] In one embodiment, the photosensitive coefficient is adjusted to obtain an adjusted photosensitive coefficient, including:

[0020] The initial laser light output radiation power is compared with the maximum laser light output radiation power.

[0021] If the initial laser light output radiation power is less than the maximum laser light output radiation power, the photosensitive coefficient is increased by a first specified value to obtain the adjusted photosensitive coefficient; or,

[0022] If the initial laser light output radiation power is greater than the maximum laser light output radiation power, the photosensitive coefficient is decreased by a second specified value to obtain the adjusted photosensitive coefficient.

[0023] In one embodiment, the initial laser light output radiation power of the cold light source of the endoscope is obtained by preliminarily adjusting the laser light output radiation power of the cold light source of the endoscope according to the voltage dividing resistor adjustment instruction, including:

[0024] The light output driving value of the cold light source of the endoscope is adjusted based on the voltage dividing resistor adjustment instruction to obtain an adjusted light output driving value, wherein the light output driving value includes a driving current value of a light source lamp of near-infrared laser of the cold light source of the endoscope or a driving voltage value of the light source lamp of near-infrared laser of the cold light source of the endoscope.

[0025] The initial laser light output radiation power is obtained according to the adjusted light output driving value.

[0026] In one embodiment, the light output driving value of the cold light source of the endoscope is adjusted based on the voltage dividing resistor adjustment instruction to obtain an adjusted light output driving value, including:

[0027] adjusting, based on the voltage division resistor adjustment instruction, a combined resistance switch in the voltage division resistor, to obtain an adjusted light emission driving value, wherein the voltage division resistor is a combined switch type resistor.

[0028] In one embodiment, the initial laser light emission radiation power is adjusted by using the adjusted light sensitivity coefficient to obtain an intermediate laser light emission radiation power, including:

[0029] multiplying the adjusted light sensitivity coefficient by a current light emission driving value of the endoscope cold light source to obtain a target light emission driving value, wherein the current light emission driving value is a light emission driving value corresponding to the initial laser light emission radiation power;

[0030] adjusting the current light emission driving value of the endoscope cold light source to be equal to the target light emission driving value;

[0031] obtaining the intermediate laser light emission radiation power by using the adjusted current light emission driving value.

[0032] In one embodiment, the method further includes:

[0033] if the first power error value is not within the first specified range, determining the initial laser light emission radiation power as the target laser light emission radiation power.

[0034] The second aspect of the present disclosure provides a cold light source, including a processor and a memory, the processor and the memory are connected through a bus;

[0035] The memory stores a computer program, and the processor is configured to execute the following operations based on the computer program:

[0036] In response to a voltage division resistor adjustment instruction sent by a user, the laser light emission radiation power of an endoscope cold light source is preliminarily adjusted according to the voltage division resistor adjustment instruction to obtain an initial laser light emission radiation power of the endoscope cold light source, wherein the laser light emission radiation power is the light emission radiation power of near-infrared laser;

[0037] Based on the initial laser light emission radiation power and a pre-set maximum laser light emission radiation power, a first power error value is obtained;

[0038] If the first power error value is within a first specified range, the light sensitivity coefficient is adjusted to obtain an adjusted light sensitivity coefficient;

[0039] The initial laser light emission radiation power is adjusted by using the adjusted light sensitivity coefficient to obtain an intermediate laser light emission radiation power;

[0040] determining a second power error value by the intermediate laser light output radiation power and the maximum laser light output radiation power;

[0041] if the second power error value is not within a second specified range, after determining the intermediate laser light output radiation power as the initial laser light output radiation power, returning to the step of adjusting the light sensitivity coefficient until the obtained second power error value is within the second specified range, then ending the adjustment of the light sensitivity coefficient and determining the intermediate laser light output radiation power as the target laser light output radiation power of the cold light source.

[0042] In one embodiment, the processor performing the determination of the first power error value based on the initial laser light output radiation power and the preset maximum laser light output radiation power is specifically configured to:

[0043] determining the difference between the initial laser light output radiation power and the maximum laser light output radiation power as the first power error value;

[0044] The processor performing the determination of the second power error value by the intermediate laser light output radiation power and the maximum laser light output radiation power is specifically configured to:

[0045] determining the difference between the intermediate laser light output radiation power and the maximum laser light output radiation power as the second power error value.

[0046] In one embodiment, the processor performing the adjustment of the light sensitivity coefficient to obtain the adjusted light sensitivity coefficient is specifically configured to:

[0047] comparing the initial laser light output radiation power with the maximum laser light output radiation power;

[0048] if the initial laser light output radiation power is less than the maximum laser light output radiation power, increasing the light sensitivity coefficient by a first specified value to obtain the adjusted light sensitivity coefficient; or,

[0049] if the initial laser light output radiation power is greater than the maximum laser light output radiation power, decreasing the light sensitivity coefficient by a second specified value to obtain the adjusted light sensitivity coefficient.

[0050] In one embodiment, the processor performing the preliminary adjustment of the laser light output radiation power of the cold light source of the endoscope according to the voltage division resistance adjustment instruction to obtain the initial laser light output radiation power of the cold light source of the endoscope is specifically configured to:

[0051] adjust the light output driving value of the cold light source of the endoscope based on the voltage division resistor adjustment instruction, to obtain an adjusted light output driving value, wherein the light output driving value comprises a driving current value of a light source lamp of the near-infrared laser of the cold light source of the endoscope or a driving voltage value of the light source lamp of the near-infrared laser of the cold light source of the endoscope;

[0052] obtain the initial laser light output radiation power according to the adjusted light output driving value.

[0053] In an embodiment, the processor performs the adjusting the light output driving value of the cold light source of the endoscope based on the voltage division resistor adjustment instruction, to obtain an adjusted light output driving value, is specifically configured to:

[0054] adjust the combined resistance switch in the voltage division resistor based on the voltage division resistor adjustment instruction, to obtain the adjusted light output driving value, wherein the voltage division resistor is a combined switch type resistor.

[0055] In an embodiment, the processor performs the adjusting the initial laser light output radiation power using the adjusted light sensitivity coefficient, to obtain an intermediate laser light output radiation power, is specifically configured to:

[0056] multiply the adjusted light sensitivity coefficient by a current light output driving value of the cold light source of the endoscope, to obtain a target light output driving value, wherein the current light output driving value is a light output driving value corresponding to the initial laser light output radiation power;

[0057] adjust the current light output driving value of the cold light source of the endoscope to be equal to the target light output driving value.

[0058] obtain the intermediate laser light output radiation power using the adjusted current light output driving value.

[0059] In an embodiment, the processor is further configured to:

[0060] if the first power error value is not within the first specified range, determine the initial laser light output radiation power as the target laser light output radiation power.

[0061] According to a third aspect provided by the embodiments of the present disclosure, an endoscope cold light source is provided, comprising a laser driving chip, a laser light output module, and a combined switch type voltage division resistor, wherein the laser driving chip is connected with the laser light output module and the combined switch type voltage division resistor respectively.

[0062] The combined switch type voltage dividing resistor is configured to adjust a light output driving value of the cold light source of the endoscope, obtain an adjusted light output driving value, and send the adjusted light output driving value to the laser driving chip, wherein the light output driving value includes a driving current value of a light source lamp in a laser light output module of the cold light source of the endoscope or a driving voltage value of the light source lamp in the laser light output module of the cold light source of the endoscope.

[0063] The laser driving chip is configured to receive the adjusted light output driving value sent by the combined switch type resistor, determine a target laser light output radiation power of the laser light output module based on the adjusted light output driving value, and send the target laser light output radiation power to the laser light output module, wherein the target laser light output radiation power is determined by using the method of the first aspect.

[0064] The laser light output module is configured to emit near-infrared laser based on the target laser light output radiation power. According to the fourth aspect of the embodiments of the present disclosure, a computer storage medium is provided, which stores a computer program for executing the method of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0066] Figure 1 A use mode diagram of an endoscope according to an embodiment of the present disclosure;

[0067] Figure 2 One of the circuit structure diagrams of a knob potentiometer according to an embodiment of the present disclosure;

[0068] Figure 3 The second of the circuit structure diagrams of a knob potentiometer according to an embodiment of the present disclosure;

[0069] Figure 4 One of the structure diagrams of a cold light source of an endoscope according to an embodiment of the present disclosure;

[0070] Figure 5 A circuit diagram of a cold light source of an endoscope according to an embodiment of the present disclosure;

[0071] Figure 6 One of the flow diagrams of a control method of a laser light output radiation power according to an embodiment of the present disclosure;

[0072] Figure 7 A schematic diagram of a device for measuring laser light output radiation power of an endoscope cold light source according to an embodiment of the present disclosure;

[0073] Figure 8 A schematic diagram of a structure of an endoscope cold light source according to an embodiment of the present disclosure;

[0074] Figure 9 A schematic diagram of a process for adjusting a light sensing coefficient according to an embodiment of the present disclosure;

[0075] Figure 10 A schematic diagram of a process for controlling laser light output radiation power of an endoscope cold light source according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0076] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some but not all of the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0077] In the embodiments of the present disclosure, the term "and / or" describes the association relationship of the associated objects and means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally means that the associated objects before and after it are in an "or" relationship.

[0078] The application scenarios described in the embodiments of the present disclosure are used to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those of ordinary skill in the art can know that, as new application scenarios appear, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems. In the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is two or more.

[0079] In the prior art, the adjustment mode of laser light output radiation power of an endoscope cold light source can only coarsely adjust the light output driving value of the endoscope cold light source by adjusting the voltage dividing resistor, resulting in low precision of laser light output power adjustment in the endoscope cold light source.

[0080] Therefore, the present disclosure provides a laser light emission radiation power control method, which preliminarily adjusts the laser light emission radiation power of the endoscope cold light source, and then further adjusts the laser light emission radiation power in the endoscope cold light source by adjusting the light sensitivity coefficient, so as to finely adjust the laser light emission radiation power, and make the laser light emission power of the endoscope cold light source approach the maximum laser light emission radiation power to the greatest extent, thereby improving the adjustment accuracy of the laser light emission radiation power and enhancing the fluorescence imaging effect of the endoscope cold light source.

[0081] Before the laser light emission power control method in the present application is described in detail, the structure of the endoscope cold light source in the present application is introduced. In the prior art, the adjustment of the voltage dividing resistor is basically realized by adjusting the knob potentiometer, as shown in Figure 2 and Figure 3 , which is a circuit structure diagram for adjusting the knob potentiometer. The user adjusts the value of the knob potentiometer to adjust the voltage dividing resistor R1. However, due to the large knob error of the potentiometer, the knob value is unstable after adjustment and point gluing, and after years of use and aging.

[0082] Therefore, in order to solve the above problems, the present application provides an endoscope cold light source, as shown in Figure 4 , which is a structure diagram of an endoscope cold light source 400 in the present application, comprising a laser driving chip 401, a laser light emission module 402 and a combined switch type voltage dividing resistor 403, wherein the laser driving chip 401 is connected with the laser light emission module 402 and the combined switch type voltage dividing resistor 403, respectively.

[0083] The combined switch type voltage dividing resistor 403 is used to adjust the light emission driving value of the endoscope cold light source 400, obtain the adjusted light emission driving value, and send the adjusted light emission driving value to the laser driving chip 401, wherein the light emission driving value includes the driving current value of the light source lamp in the laser light emission module 402 of the endoscope cold light source 400 or the driving voltage value of the light source lamp in the laser light emission module 402 of the endoscope cold light source 400.

[0084] The laser driving chip 401 is used to receive the adjusted light emission driving value sent by the combined switch type resistor 403, determine the target laser light emission radiation power of the laser light emission module 402 based on the adjusted light emission driving value, and send the target laser light emission radiation power to the laser light emission module 402, wherein the target laser light emission radiation power is determined by the laser light emission power control method in the present application.

[0085] The laser light emission module 402 is used to emit near-infrared laser based on the target laser light emission radiation power.

[0086] The combined switch type voltage dividing resistor in the embodiments of the present application makes the corresponding combined voltage dividing circuit preset value visual, which is convenient for debugging and setting according to the preset value when replacing the driving board. Moreover, the problems of unstable point and knob value do not occur.

[0087] The combined switch type voltage dividing resistor in the embodiments of the present application can use 1:2:4 or 1:2:4:8 combined resistors and combined switches. If 1:2:4 combined resistors and combined switches are used, 10 preset values can be formed, and if 1:2:4:8 combined resistors and combined switches are used, 16 preset values can be formed. The corresponding preset values are used as the maximum control value of coarse light output. In the embodiments of the present application, the combined switches are adjusted while the light output power is tested by using the optical integrating sphere system, so that the light output radiation power of the cold light source driven by the driving chip is within the maximum laser light output radiation power. As shown in FIG. 8, it is a circuit structure diagram corresponding to the combined resistors and combined switches of 1:2:4. The adjustment of the light output driving value can be realized by the on-off of switches 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 in FIG. 8. After the light output driving value changes, the corresponding laser light output radiation power also changes. Therefore, the laser light output radiation power of the endoscope cold light source is indirectly adjusted. Figure 5 Figure 5

[0088] As shown in FIG. 9, it is a flowchart of the control method of the laser light output radiation power of the endoscope cold light source. The method can include the following steps: Figure 6

[0089] Step 601: In response to a voltage dividing resistor adjustment instruction sent by a user, the laser light output radiation power of an endoscope cold light source is preliminarily adjusted according to the voltage dividing resistor adjustment instruction, and an initial laser light output radiation power of the endoscope cold light source is obtained, wherein the laser light output radiation power is the light output radiation power of near-infrared laser.

[0090] As shown in FIG. 10, it is a schematic diagram of a device for measuring the laser light output radiation power of an endoscope cold light source, which includes an integrating sphere device 700, an endoscope cold light source 710 and a terminal device 720. As can be seen from FIG. 10, the integrating sphere device 700 is connected with the endoscope cold light source 710 and the terminal device 720 respectively. The integrating sphere device 700 is used for measuring the laser light output radiation power in the endoscope cold light source 710, and the measured laser light output radiation power is displayed through the terminal device 720. The user can adjust the voltage dividing resistor group according to the currently displayed laser light output radiation power in the terminal device, and take the laser light output radiation power obtained after preliminary adjustment as the initial laser light output radiation power. Figure 7 Figure 7 As can be seen from FIG. 10, the integrating sphere device 700 is connected with the endoscope cold light source 710 and the terminal device 720 respectively. The integrating sphere device 700 is used for measuring the laser light output radiation power in the endoscope cold light source 710, and the measured laser light output radiation power is displayed through the terminal device 720. The user can adjust the voltage dividing resistor group according to the currently displayed laser light output radiation power in the terminal device, and take the laser light output radiation power obtained after preliminary adjustment as the initial laser light output radiation power.

[0091] ​​​​In one embodiment, this application provides a photosensitive device capable of photodetection in the endoscope cold light source. For example... Figure 8 The diagram shows the structure of an endoscopic cold light source 400, including a laser driver chip 401, a laser light output module 402, a combination switch-type voltage divider resistor 403, and a photosensor 404. The photosensor 404 is the adjustment component in this embodiment. This photosensor 404 is used for photosensor detection; that is, after obtaining the initial emitted radiation power, the laser driver chip 401 corresponding to the endoscopic cold light source 400 has a photosensor calibration menu. After the user clicks this menu, the photosensor 404 obtains the corresponding photosensor value and then uses this photosensor value as a preset photosensor value of 1. This photosensor value serves as the target photosensor value for a full-scale laser light output power of 100. When the laser driver chip 401 in the endoscopic cold light source 400 is replaced, the corresponding full-scale laser light output radiation power of 100 can be directly set based on the target light source value. This saves time and improves efficiency.

[0092] Before performing step 601, the brightness of the cold light source needs to be adjusted to the maximum brightness.

[0093] In one embodiment, step 601 may be implemented as follows: adjusting the light emission drive value of the endoscope cold light source based on the voltage divider resistor adjustment command to obtain the adjusted light emission drive value; obtaining the initial laser emission radiation power of the endoscope cold light source according to the adjusted light emission drive value, wherein the light emission drive value includes the driving current value of the near-infrared laser light source lamp of the endoscope cold light source or the driving voltage value of the near-infrared laser light source lamp of the endoscope cold light source.

[0094] In this embodiment of the application, if the light source in the endoscopic cold light source is a constant current type, then the light emission driving value in this embodiment is the driving current value; if the light source is a constant voltage type, then the light emission driving value in this embodiment is the driving voltage value. Furthermore, in this embodiment, the light emission driving value is adjusted by modifying the combination resistor switch of the voltage divider resistor based on the resistor adjustment command, thereby obtaining the adjusted light emission driving value.

[0095] Step 602: Based on the initial laser emission power and the preset maximum laser emission power, obtain the first power error value;

[0096] In one embodiment, step 602 can be specifically implemented as: determining the difference between the initial laser emission power and the maximum laser emission power as the first power error value.

[0097] Step 603: If the first power error value is within the first specified range, then the light sensitivity coefficient is adjusted to obtain the adjusted light sensitivity coefficient;

[0098] In the embodiment, the first specified range can be set according to actual conditions, and the embodiment does not limit the first specified range. The light sensitivity coefficient is a coefficient for adjusting the laser light emission radiation power. The light sensitivity coefficient is adjusted to correspondingly adjust the light emission driving value of the endoscope cold light source, so as to adjust the laser light emission radiation power of the endoscope cold light source.

[0099] In order to save computing resources, in one embodiment, if the first power error value is not within the first specified range, the initial laser light emission radiation power is determined as the target laser light emission radiation power.

[0100] Next, the adjustment method of the light sensitivity coefficient is introduced. As shown in FIG. 8, it is a flowchart for adjusting the light sensitivity coefficient, which can include the following steps: Figure 9

[0101] Step 901: comparing the initial laser light emission radiation power with the maximum laser light emission radiation power;

[0102] Step 902: determining whether the initial laser light emission radiation power is less than the maximum laser light emission radiation power. If yes, step 903 is performed, and if no, step 904 is performed.

[0103] Step 903: increasing the light sensitivity coefficient by a first specified value to obtain the adjusted light sensitivity coefficient;

[0104] Step 904: decreasing the light sensitivity coefficient by a second specified value to obtain the adjusted light sensitivity coefficient.

[0105] It should be noted that the first specified value and the second specified value in the embodiment are constants, and the first specified value and the second specified value in the embodiment can be set according to actual conditions. The first specified value and the second specified value in the embodiment can be the same or different. The embodiment does not limit the first specified value and the second specified value.

[0106] Step 604: adjusting the initial laser light emission radiation power by using the adjusted light sensitivity coefficient to obtain an intermediate laser light emission radiation power;

[0107] In one embodiment, step 604 can be specifically implemented as: multiplying the adjusted light sensitivity coefficient by the current light emission driving value of the endoscope cold light source to obtain a target light emission driving value; adjusting the current light emission driving value of the endoscope cold light source to be equal to the target light emission driving value; and obtaining the intermediate laser light emission radiation power by using the adjusted current light emission driving value.

[0108] ​From the foregoing, the laser light emission radiation power in the embodiment of the application can be measured by the integrating sphere device, that is, the corresponding laser light emission radiation power measured by the integrating sphere device after the current light emission driving value is adjusted to the target light emission driving value in the application is determined as the intermediate laser light emission radiation power, or the corresponding laser light emission radiation power of the adjusted current light emission driving value can be obtained through the corresponding relationship between the light emission driving value and the laser light emission radiation power set in advance, and the obtained laser light emission radiation power is determined as the intermediate laser light emission radiation power.

[0109] Step 605: obtaining a second power error value through the intermediate laser light emission radiation power and the maximum laser light emission radiation power;

[0110] In one embodiment, step 605 can be implemented as: determining the difference between the intermediate laser light emission radiation power and the maximum laser light emission radiation power as the second power error value.

[0111] Step 606: judging whether the second power error value is within a second specified range, if not, executing step 607, and if yes, executing step 608;

[0112] Step 607: after determining the intermediate laser light emission radiation power as the initial laser light emission radiation power, returning to step 603;

[0113] Step 608: determining the intermediate laser light emission radiation power as the target laser light emission radiation power of the endoscope cold light source.

[0114] It should be noted that the second specified range in the embodiment of the application can be set according to actual conditions, and the second specified range is not limited in the embodiment of the application.

[0115] In order to further understand the technical scheme of the present disclosure, the following will be described in detail in combination with Figure 10 The method can include the following steps:

[0116] Step 1001: in response to the voltage division resistor adjustment instruction sent by the user, adjusting the light emission driving value of the endoscope cold light source based on the voltage division resistor adjustment instruction to obtain an adjusted light emission driving value;

[0117] Step 1002: obtaining the initial laser light emission radiation power according to the adjusted light emission driving value;

[0118] Step 1003: obtaining a first power error value based on the initial laser light emission radiation power and a pre-set maximum laser light emission radiation power;

[0119] Step 1004: determining whether the first power error value is within a first specified range, if yes, executing step 1005, if no, executing step 1013;

[0120] Step 1005: determining whether the initial laser light emission radiation power is less than the maximum laser light emission radiation power, if yes, executing step 1006, if no, executing step 1007;

[0121] Step 1006: increasing the light sense coefficient by a first specified value to obtain an adjusted light sense coefficient;

[0122] Step 1007: decreasing the light sense coefficient by a second specified value to obtain an adjusted light sense coefficient;

[0123] Step 1008: adjusting the initial laser light emission radiation power by using the adjusted light sense coefficient to obtain an intermediate laser light emission radiation power;

[0124] Step 1009: obtaining a second power error value by using the intermediate laser light emission radiation power and the maximum laser light emission radiation power;

[0125] Step 1010: determining whether the second power error value is within a second specified range, if yes, executing step 1011, if no, executing step 1012;

[0126] Step 1011: determining the intermediate laser light emission radiation power as the target laser light emission radiation power of the endoscope cold light source;

[0127] Step 1012: determining the intermediate laser light emission radiation power as the initial laser light emission radiation power;

[0128] Step 1013: determining the initial laser light emission radiation power as the target laser light emission radiation power.

[0129] After introducing the laser light emission radiation power control method of the example embodiment of the present disclosure, next, the endoscope cold light source according to another example embodiment of the present disclosure is introduced.

[0130] Those skilled in the art can understand that each aspect of the present disclosure can be implemented as a system, a method or a program product. Therefore, each aspect of the present disclosure can be embodied as a whole hardware embodiment, a whole software embodiment (including firmware, microcode, etc.), or an embodiment combining hardware and software aspects, which can be collectively referred to as "circuitry", "module" or "system" herein.

[0131] In some possible implementation, the endoscope cold light source according to the present disclosure can at least include at least one processor and at least one computer storage medium. The computer storage medium stores program codes, when the program codes are executed by the processor, the processor executes the steps in the control method of laser light radiation power according to various exemplary embodiments of the present disclosure described above in the specification. For example, the processor can execute the steps 601-608 as shown in FIG. 6. Figure 6

[0132] In some possible implementation, each aspect of the control method of laser light radiation power provided by the present disclosure can also be implemented in the form of a program product, which includes program codes for causing the computer device to execute the steps in the control method of laser light radiation power according to various exemplary embodiments of the present disclosure described above in the specification when the program product is run on the computer device.

[0133] The program product can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access computer storage medium (RAM), a read-only computer storage medium (ROM), an erasable programmable read-only computer storage medium (EPROM or flash memory), an optical fiber, an optical computer storage medium, a magnetic computer storage medium, or any suitable combination of the above.

[0134] The program product of the control of laser light radiation power of the embodiments of the present disclosure can adopt a read-only computer storage medium (ROM) and include program codes, and can be run on the cold light source. However, the program product of the present disclosure is not limited to this, in this document, the readable storage medium can be any tangible medium containing or storing programs, which can be used or combined with instruction execution systems, devices or apparatuses.

[0135] The readable signal medium can include a data signal propagating in the baseband or as a part of a carrier wave, in which readable program codes are carried. Such a propagating data signal can adopt various forms, including but not limited to electromagnetic signals, optical signals or any suitable combination of the above. The readable signal medium can also be any readable medium other than the readable storage medium, which can send, propagate or transmit programs for use by or in combination with instruction execution systems, devices or apparatuses.

[0136] ​The program code embodied on the computer readable medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, and the like, or any suitable combination of the foregoing.

[0137] Computer program code for carrying out operations of the present disclosure can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, and the like, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's cold light source, partly on the user's device, as a stand-alone software package, partly on the user's cold light source and partly on a remote cold light source or entirely on the remote cold light source or server. In the latter scenario, the remote cold light source can be connected to the user's cold light source through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external cold light source (for example, through the Internet using an Internet Service Provider). The present disclosure relates to any combination of the features recited above.

[0138] It should be noted that, although several modules of an apparatus are referred to in the foregoing detailed description, such partitioning is merely exemplary and is not mandatory. In fact, according to embodiments of the present disclosure, features and functions of two or more modules described above can be embodied in a single module. Conversely, a module described above can be partitioned into multiple modules.

[0139] Further, although operations of the methods of the present disclosure are described in a particular order in the figures, this is not required or implied in any way, as any number of the operations described can be performed in any order or omitted and still achieve desirable results. Additionally or alternatively, certain steps can be combined into fewer steps, multiple steps can be split into additional steps, and / or a single step can be split into multiple steps.

[0140] Those skilled in the art will appreciate that embodiments of the present disclosure can be devised for a method, a system, or a computer program product. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure can take the form of a computer program product on one or more computer readable medium(s) having computer usable program code embodied in the medium that causes a computer to operate as described herein.

[0141] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0142] These computer program instructions can also be stored in a computer readable medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable medium produce an article of manufacture including instructions which implement the Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0143] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more flow or blocks Figure 1 one or more flow or blocks

[0144] Obviously, numerous modifications and variations of the present disclosure are possible in light of the above teachings. It is therefore to be understood that within the scope of the apparatus and that the computer program instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.

Claims

1. An endoscope cold light source, characterized by, The processor and the memory are connected through a bus; The memory stores a computer program, and the processor is configured to execute the following operations based on the computer program: In response to a user sending a voltage division resistor adjustment instruction, the laser light output radiation power of the endoscope cold light source is preliminarily adjusted according to the voltage division resistor adjustment instruction, and an initial laser light output radiation power of the endoscope cold light source is obtained, wherein the laser light output radiation power is the light output radiation power of near-infrared laser; Based on the initial laser light output radiation power and a pre-set maximum laser light output radiation power, a first power error value is obtained; If the first power error value is within a first specified range, the light sensitivity coefficient is adjusted to obtain an adjusted light sensitivity coefficient; The initial laser light output radiation power is adjusted using the adjusted light sensitivity coefficient to obtain an intermediate laser light output radiation power; Through the intermediate laser light output radiation power and the maximum laser light output radiation power, a second power error value is obtained; If the second power error value is not within a second specified range, after the intermediate laser light output radiation power is determined as the initial laser light output radiation power, the step of adjusting the light sensitivity coefficient is returned until the second power error value obtained is within the second specified range, the adjustment of the light sensitivity coefficient is ended, and the intermediate laser light output radiation power is determined as the target laser light output radiation power of the cold light source.

2. The endoscope cold light source of claim 1, wherein The processor executes the first power error value based on the initial laser light output radiation power and the pre-set maximum laser light output radiation power, and is specifically configured to: The difference between the initial laser light output radiation power and the maximum laser light output radiation power is determined as the first power error value; The processor executes the second power error value through the intermediate laser light output radiation power and the maximum laser light output radiation power, and is specifically configured to: The difference between the intermediate laser light output radiation power and the maximum laser light output radiation power is determined as the second power error value.

3. The endoscope cold light source of claim 1, wherein The processor executes the adjustment of the light sensitivity coefficient to obtain the adjusted light sensitivity coefficient, and is specifically configured to: The initial laser light output radiation power is compared with the maximum laser light output radiation power; If the initial laser light output radiation power is less than the maximum laser light output radiation power, the light sensitivity coefficient is increased by a first specified value to obtain the adjusted light sensitivity coefficient; Or, If the initial laser light output radiation power is greater than the maximum laser light output radiation power, the light sensitivity coefficient is decreased by a second specified value to obtain the adjusted light sensitivity coefficient.

4. The endoscope cold light source of claim 1, wherein The processor executes the preliminary adjustment of the laser light output radiation power of the endoscope cold light source according to the voltage division resistor adjustment instruction to obtain the initial laser light output radiation power of the endoscope cold light source, and is specifically configured to: adjust the light output driving value of the cold light source of the endoscope based on the voltage division resistor adjustment instruction, to obtain an adjusted light output driving value, wherein the light output driving value comprises a driving current value of a light source lamp of the near-infrared laser of the cold light source of the endoscope or a driving voltage value of the light source lamp of the near-infrared laser of the cold light source of the endoscope; obtain the initial laser light output radiation power according to the adjusted light output driving value.

5. The endoscope cold light source of claim 4, wherein, The processor performs the adjustment of the light output driving value of the cold light source of the endoscope based on the voltage division resistor adjustment instruction to obtain an adjusted light output driving value, and is specifically configured to: adjust the combined resistance switch in the voltage division resistor based on the voltage division resistor adjustment instruction to obtain the adjusted light output driving value, wherein the voltage division resistor is a combined switch resistor.

6. The endoscope cold light source of claim 4, wherein, The processor performs the adjustment of the initial laser light output radiation power using the adjusted light sensitivity coefficient to obtain an intermediate laser light output radiation power, and is specifically configured to: multiply the adjusted light sensitivity coefficient by the current light output driving value of the cold light source of the endoscope to obtain a target light output driving value, wherein the current light output driving value is a light output driving value corresponding to the initial laser light output radiation power; adjust the current light output driving value of the cold light source of the endoscope to be equal to the target light output driving value; obtain the intermediate laser light output radiation power using the adjusted current light output driving value.

7. The endoscope cold light source of claim 1, wherein The processor is further configured to: if the first power error value is not within the first specified range, determine the initial laser light output radiation power as the target laser light output radiation power.

8. A method of controlling the output power of laser light, characterized by, The method comprises: in response to a voltage division resistor adjustment instruction sent by a user, preliminarily adjust a laser light output radiation power of a cold light source of an endoscope according to the voltage division resistor adjustment instruction to obtain an initial laser light output radiation power of the cold light source of the endoscope, wherein the laser light output radiation power is a near-infrared laser light output radiation power; obtain a first power error value based on the initial laser light output radiation power and a pre-set maximum laser light output radiation power; if the first power error value is within a first specified range, adjust a light sensitivity coefficient to obtain an adjusted light sensitivity coefficient; adjust the initial laser light output radiation power using the adjusted light sensitivity coefficient to obtain an intermediate laser light output radiation power; obtain a second power error value through the intermediate laser light output radiation power and the maximum laser light output radiation power; if the second power error value is not within a second specified range, after determining the intermediate laser light output radiation power as the initial laser light output radiation power, return to the step of adjusting the light sensitivity coefficient until the obtained second power error value is within the second specified range, then end the adjustment of the light sensitivity coefficient and determine the intermediate laser light output radiation power as the target laser light output radiation power of the cold light source.

9. The method of claim 8, wherein, The obtaining of the first power error value based on the initial laser light output radiation power and the pre-set maximum laser light output radiation power comprises: determining a difference between the initial laser light emission radiation power and the maximum laser light emission radiation power as the first power error value; the second power error value is obtained by the intermediate laser light emission radiation power and the maximum laser light emission radiation power, including: determining a difference between the intermediate laser light emission radiation power and the maximum laser light emission radiation power as the second power error value.

10. An endoscope cold light source characterized by comprising: The laser driving chip, the laser light emission module and the combined switch type voltage dividing resistor are connected respectively. The combined switch type voltage dividing resistor is used for adjusting the light emission driving value of the cold light source of the endoscope, obtaining the adjusted light emission driving value, and sending the adjusted light emission driving value to the laser driving chip, wherein the light emission driving value includes the driving current value of the light source lamp in the laser light emission module of the cold light source of the endoscope or the driving voltage value of the light source lamp in the laser light emission module of the cold light source of the endoscope. The laser driving chip is used for receiving the adjusted light emission driving value sent by the combined switch type voltage dividing resistor, determining the target laser light emission radiation power of the laser light emission module based on the adjusted light emission driving value, and sending the target laser light emission radiation power to the laser light emission module, wherein the target laser light emission radiation power is determined by the method of any one of claims 8-9. The laser light emission module is used for emitting near-infrared laser based on the target laser light emission radiation power.

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