CN111193854A

CN111193854A - Camera assembly of endoscope

Info

Publication number: CN111193854A
Application number: CN202010146570.7A
Authority: CN
Inventors: 张景明
Original assignee: Ningbo Sikangxin Electronic Technology Co ltd
Current assignee: Ningbo Sikangxin Electronic Technology Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-05-22

Abstract

The present application relates to a camera assembly of an endoscope, comprising: a camera module for collecting image data of a target object; an optical magnification module optionally used in cooperation with the camera module; a control unit for controlling the camera module The optical amplification module is switched between different states; when the optical amplification module is in the first state, the optical amplification module is mated with the camera module, and the camera assembly collects an enlarged image; when the optical amplification module is in the first state When the module is in the second state, the optical amplification module is separated from the camera module, and the camera assembly collects ordinary images.

Description

Camera assembly of endoscope

Technical Field

The application relates to the field of medical equipment, in particular to a camera assembly of an endoscope.

Background

The endoscope used in the market at present has low resolution due to structural limitation or material characteristics used per se, and is inconvenient for doctors to carefully observe the lesion position. In order to facilitate doctors to use the endoscope to quickly diagnose affected parts of patients, it is necessary to provide an endoscope capable of magnifying images of the affected parts, so that the doctors can conveniently and visually judge details of the affected parts.

Disclosure of Invention

An object of the present application is to provide a camera assembly of an endoscope, the camera assembly comprising: the camera module is used for acquiring image data of a target object; the optical amplification module can be selectively matched with the camera module for use; the control unit is used for controlling the optical amplification module to be switched among different states; when the optical amplification module is in a first state, the optical amplification module is matched and connected with the camera module, and the camera assembly acquires an amplified image; when the optical amplification module is in a second state, the optical amplification module is separated from the image pickup module, and the camera assembly collects a common image.

In some embodiments, the camera module comprises a lens and a photosensitive chip corresponding to the lens; when the optical amplification module is in a first state, the axis of the optical amplification module coincides with the axis of the lens.

In some embodiments, the optical amplification module is switched between the first state and the second state by means of a linear motion or a rotational motion.

In some embodiments, the control unit further comprises a driving motor, and the optical amplification module moves from the first state to the second state under the action of the driving motor.

In some embodiments, the output mode of the driving motor is linear motion or rotation.

In some embodiments, the camera modules include a first camera module and a second camera module; the optical amplification module is movably switched between different states; when the optical amplification module is in a first state, the optical amplification module is superposed with the axis of the first camera module or the second camera module; when the optical amplification module is in a second state, the optical module is separated from the axes of the first camera module and the second camera module.

In some embodiments, the camera modules include a first camera module and a second camera module; the optical amplification module is coaxially and fixedly arranged in front of one of the camera modules; the control unit is connected with the first camera module and the second camera module and selects the amplifying state of the camera assembly by selecting the working state of the first camera module.

In some embodiments, the optical amplification module comprises at least one magnification increasing mirror; the at least one magnification lens is arranged in front of the camera module in a mode of overlapping the axis.

In some embodiments, the optical amplification module includes at least two magnification increasing mirrors with different magnifications, and an appropriate camera module can be selected to be combined as required to realize different magnifications.

In some embodiments, the magnification of the optical amplification module is 1-100.

In some embodiments, the camera module comprises a first fiber bundle having a first focal length; the optical amplification module comprises a second optical fiber bundle with a second focal length; the second focal length is larger than the first focal length; when the second optical fiber works, the camera assembly is in a first state; when the second optical fiber bundle does not work, the camera is in a second state.

In some embodiments, the first optical fiber bundle and the second optical fiber bundle are arranged in a staggered manner.

In some embodiments, the control unit is connected to at least the second fiber bundle for controlling whether the second fiber bundle is operated.

Drawings

The present application will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not intended to be limiting, and in these embodiments like numerals are used to indicate like structures, wherein:

FIG. 1 is a schematic structural view of an endoscopic device according to some embodiments of the present application;

FIG. 2 is a schematic structural view of a camera head assembly of an endoscope according to some embodiments of the present application;

3A, 3B, and 3C are schematic diagrams of optical amplification modules according to some implementations of the present application in different states; and

FIG. 4 is a schematic view of an optical fiber arrangement according to some embodiments of the present application.

Detailed Description

Reference will now be made in detail to exemplary embodiments or implementations, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

Embodiments of the present application may be applied to medical endoscopic devices for observing and/or treating various different sites, for example, an endoscope for a kidney, an endoscope for a bladder, an endoscope for a biliary tract, and the like. When an operator observes an affected part by using these endoscopes, the operator needs to be able to output an overall image of the affected part so as to observe the lesion position of the affected part; the operator also needs the endoscope device to further output a local clear image of the lesion position so as to further judge the lesion condition of the affected part. In some embodiments, one or more embodiments of the present application can also be used in the field of industrial endoscopy according to practical needs.

The camera assembly of the endoscope in some embodiments can use digital amplification to amplify the local image of the affected lesion site, but the noise and clarity of the image after digital amplification is far less than expected. The number is amplified to more than 3 times, so that the real pathological condition can not be restored.

The camera assembly of the endoscope disclosed by some embodiments of the present application can optically magnify the lesion position of an affected part in a manner of increasing the focal length of a lens in the camera module of the camera assembly to achieve a larger magnification. The endoscope device adopting the camera assembly can clearly output the amplified image of the lesion position so as to observe the details of the lesion position more intuitively. Some embodiments of the present disclosure provide a camera module of a camera assembly of an endoscope, which has a zoom lens, and can change a focal length and a field angle of a lens of the camera module. In some embodiments, zooming can be achieved by changing the position of each lens and/or photoreceptor in the lens of the camera module, changing the focal length of the lens, and changing the field angle of the lens accordingly. For example, when the focal length of the lens is increased, the angle of view thereof is reduced, and the partial image output thereof is sharper. In some embodiments, the focal length and the field angle of the camera module can be changed by increasing or decreasing the number of lenses in the lens. For example, one or more lenses with different focal lengths can be added at the front end of the lens to increase the focal length of the endoscope lens and reduce the angle of view thereof, so that the partial image output by the endoscope lens is clearer. The camera assembly of the endoscope disclosed by some embodiments of the present application further includes an optical magnifying module disposed in front of the lens of the camera module, and the focal length of the camera module in the camera assembly is increased by the optical magnifying module, so as to reduce the field angle thereof, and make the partial image output by the camera assembly clearer. In some embodiments, the optical magnifying module is optionally disposed in front of the lens of the camera module. That is, when a global image with a large field of view needs to be output, the optical amplification module can be located at a separation position, the optical amplification module is separated from the lens, and the lens collects and outputs the global image; when a clear magnified image needs to be output, the optical magnification module can be in a matching position, the optical magnification module is matched with the lens, and the lens collects and outputs the corresponding magnified image. The camera subassembly of the endoscope that some embodiments of this application disclose further can include two or more than the camera module that has different focuses, and wherein the less camera module of focus can be used for shooing the global image of affected part, and the great camera module of focus can be used for shooing the higher pathological change position local image of definition.

It should be understood that the application scenarios of the camera head assembly of the endoscope of the present application are merely examples or embodiments of the present application, and it will be apparent to those of ordinary skill in the art that the present application can be applied to other similar scenarios without inventive effort based on these figures.

FIG. 1 is a schematic structural view of an endoscopic device according to some embodiments of the present application.

As shown in fig. 1, the endoscope apparatus 100 may include a camera assembly 200, an image processing module 30, a display terminal 40, and a data transmission module 50.

In some embodiments, the camera assembly 200 may be used to project into the target site to capture images or video information of the target object. In some embodiments, the target site may be an internal cavity of a different part of the human body, including but not limited to the chest, abdomen, mouth, etc. In some embodiments, the target objects may be different organs or tissues of the human body, e.g., gall bladder, etc.

In some embodiments, the image processing module 30 may be configured to process image data of a target object so as to display the image data in the display terminal 40. In some embodiments, the processing may include, but is not limited to, image compression, enhancement and restoration, description and recognition, and the like.

In some embodiments, the display terminal 40 may be configured to display image data of the target object. In some embodiments, the display terminal 40 may be a terminal device with a display function. In some embodiments, the display terminal 40 may include, but is not limited to, a cell phone terminal 40-1, a tablet computer 40-2, a notebook computer 40-3, a desktop computer 40-4, and other display-enabled devices such as 3D glasses, VR devices, AR devices, and the like.

In some embodiments, the data transmission module 50 may be configured to transmit image data of the target object. For example, the data transmission module 50 may transmit data collected by the camera assembly 200 to the image processing module 30, and may also transmit a processing result of the image processing module 30 to the display terminal 40. In some embodiments, the data transmission module 50 may include a data transmission line. In some embodiments, the data transmission line may include a wired form and a wireless form. In some embodiments, the wired form may include, but is not limited to, optical fibers, electrical cables, and the like. The wireless form may include, but is not limited to, WIFI transmission, bluetooth transmission, Near Field Communication (NFC), and the like.

In some embodiments, the camera assembly 200 may include a camera module 10, an optical amplification module 20, a control unit (not shown), a substrate 60, and a tube 70. In some embodiments, the camera module 10 may be configured to capture image data of a target object. In some embodiments, the target objects may be different organs or tissues of the human body, e.g., gall bladder, etc. In some embodiments, the camera module 10 may include an optical lens set and a corresponding photosensitive element, and the optical lens set and the corresponding photosensitive element are used to capture image data of the target object. In some embodiments, the camera module 10 may also include one or more optical fiber bundles, and the one or more optical fiber bundles are used to collect image data of the target object. In some embodiments, the camera module 10 may be a 2D camera module or a 3D camera module. In some embodiments, the camera module 10 may be a single camera module, or may be a combined camera module composed of two or more camera modules.

In some embodiments, the optical magnification module 20 may be an external optical module for image magnification. The external optical module for imaging and amplifying can be arranged in front of the common lens group, so that the common lens group can collect and amplify images. In some embodiments, the optical amplification module 20 may also be a fiber bundle with a large focal length, which can directly acquire the amplified image. In some embodiments, the optical magnification module 20 is optionally used in conjunction with the camera module 10. In some embodiments, the cooperative use may include the optical amplification module 20 being used simultaneously with the camera module 10 or separately. For example, when a locally magnified image of the target object needs to be acquired, the optical magnification module 20 may be selected to be used together with the camera module 10 or the optical magnification module 20 may be selected to be used alone.

In some embodiments, the control unit may control the optical amplification module 20 to be in or to switch between different states. In some embodiments, the different states may include a first state and a second state. When the optical amplification module 20 is in the first state, the optical amplification module 20 is coupled to the camera module 10, and the camera assembly 200 acquires an amplified image; when the optical amplification module 20 is in the second state, the optical amplification module 20 is separated from the camera module 10, and the camera assembly 200 collects a general image of the target object. In some embodiments, the partial image may show a high-definition image of a specific portion of the target object. In some embodiments, the generic image may be understood as an image of the target object acquired without magnification.

In some embodiments, the control unit may control the optical amplification module 20 to move between different positions. For example, the control unit may drive the external optical magnifying module 20 to move in front of the lens 1101 of the camera module 10, so that the lens 1101 cooperates with the external optical magnifying module 20 to capture a magnified image. In some embodiments, the control unit may also control the optical amplification module 20 or a camera module used in cooperation with the optical amplification module 20 by an electric signal to start or stop the operation of the optical amplification module. For example, the control unit may control the fiber bundle having a large focal length, which may collect a magnified image, to start operating. For example, the control unit may control the camera module coupled to the optical amplification module to start working, so as to collect the corresponding amplified image.

In some embodiments, the substrate 60 may be used to fix the camera module 10. In some embodiments, the securing may include, but is not limited to, bonding, welding, bolting, and the like. In some embodiments, referring to fig. 2, the camera module 10 may further include a bracket 1103 for fixedly connecting with the substrate 60.

In some embodiments, the tube 70 can be used to receive the substrate 60 and secure the camera module 10 thereon. In some embodiments, the substrate 60 and the camera module 10 secured thereto may be located at an extended end of the tube 70. In some embodiments, the extended end of the tube 70 may have a rounded shape so that the camera assembly 200 does not damage human organs or tissues during use. In some embodiments, the extended end of the tube 70 is sealed to isolate the body organ or tissue from the internal structure of the camera assembly 200, thereby protecting the internal equipment and maintaining the body organ or tissue in a hygienic state.

In some embodiments, the camera module 10 may be a single camera module, and referring to fig. 2, the camera module 10 may include a lens group 1101 and a photosensitive chip 1102 corresponding to the lens group 1101. In some embodiments, the lens group 1101 may include at least one optical lens. In some embodiments, when the optical amplification module 20 is in the first state, the axis of the optical amplification module 20 coincides with the axis of the lens 1101. At this time, the lens 1101 of the camera module 10 may capture a magnified image of a local portion of the target object.

In some embodiments, the camera module 10 may also be composed of a plurality of camera modules. In some embodiments, the camera module 10 may include a first camera module 110 and a second camera module 120, as described with reference to fig. 1. In some embodiments, the first camera module 110 and the second camera module 120 can be used to capture a common image with a large field of view, i.e., an image that is not magnified. Either of the two can be coupled to the optical magnifying module 20 for capturing a locally magnified image of the small field of view, wherein the axis of the optical magnifying module coincides with the axis of the lens.

In some embodiments, when the optical amplification module 20 is in the first state, the optical amplification module 20 may coincide with an axis of the first camera module 110. In some embodiments, when the optical amplification module 20 is in the first state, the optical amplification module 20 may also coincide with the axis of the second camera module 120. In some embodiments, the axis of the first camera module 110 and/or the axis of the second camera module 120 may be the optical axis of their respective internal lenses.

In some embodiments, the control unit may control the optical amplification module 20 to be in or to switch between different position states. In some embodiments, the position state may include a first state and a second state. In some embodiments, the first state may be a mated position state in which the axes of the optical magnifying module 20 and the camera module 10 are coincident, and the camera module 10 may capture a magnified image of a portion of the target object. In some embodiments, the second state may be a separated position state in which the axes of the optical magnifying module 20 and the camera module 10 are separated from each other, and the camera head assembly of the camera module 20 may capture a general image of the target object. The mutual separation is understood to mean that the axes of the optical amplification module 20 and the camera module 10 are not on the same axis. Specifically, referring to fig. 2, when the optical amplification module 20 is in the first state, the axis of the optical amplification module 20 coincides with the axis of the lens 1101. The optical amplification module 20 and the lens 1101 can be placed in close contact with each other, or can be separated by a certain distance, for example, the distance between the optical amplification module 20 and the lens along the axis is 0-3 mm; when the optical amplification module 20 is in the second state, the axes of the optical amplification module 20 and the lens 1101 are separated by a distance. Preferably, the optical amplification module 20 does not overlap with the lens 1101, so that light of the lens 1101 is not blocked by the optical amplification module 20 (for example, the optical amplification module 20 may be located at a position of a dotted line in fig. 2).

In some embodiments, when the optical amplification module 20 is switched from the first state to the second state, the optical amplification module 20 is driven by the control unit to move to a position (e.g., a dashed line position in fig. 2) where the lens 1101 is not shielded. In some embodiments, the optical amplification module 20 may be switched between the first state and the second state by a linear motion or a rotational motion. For example, the optical amplification module 20 may be translated from a first state position to a second state position. For another example, the optical amplification module 20 may be rotated about a fixed axis from a first state position to a second state position. In some embodiments, the switching of the state of the optical amplification module 20 may be performed by a control unit. In some embodiments, the control unit may include a driving motor, and the optical amplification module 20 moves from the first state to the second state or from the second state to the first state by the driving motor. In some embodiments, the output mode of the driving motor is linear motion or rotation.

In some embodiments, the camera module 10 may include a first camera module 110 and a second camera module 120. Referring to fig. 3A and 3B, when the optical amplification module 20 is in the first state, the axis thereof coincides with the axis of one of the first camera module 110 or the second camera module 120. When the optical magnifying module 20 is in the second state, the optical magnifying module is separated from the axes of the first camera module 110 and the second camera module 120, specifically, the optical magnifying module 20 is located at a position where it does not block any of the first camera module 110 and the second camera module 120, as shown in fig. 3C.

In some embodiments, there may be two optical amplification modules 20, each of which has a different amplification factor and is respectively coupled to the first camera module 110 and the second camera module 120 to achieve the different amplification factors. For example, the camera assembly 200 may have a 3-times optical magnification module coupled to the first camera module 110 and a 5-times optical magnification module coupled to the second camera module 120, and the 3-times optical magnification module is controlled to be in the first state when a 3-times magnified image needs to be output, and the 5-times optical magnification module is controlled to be in the first state when a 5-times magnified image needs to be output.

In some embodiments, the camera module 10 may include a first camera module 110 and a second camera module 120. The optical amplification module 20 is coaxially and fixedly arranged in front of the one camera module. For example, the optical magnifying module 20 may be fixedly disposed in front of the lens of the first camera module 110, and at the same time, the axis of the optical magnifying module 20 coincides with the lens axis of the first camera module 110. In some embodiments, the control unit is connected to the first camera module 110 and the second camera module 120, and selects the zoom-in state of the camera assembly by selecting the operating state of the first camera module 110. In some embodiments, the control unit may also be connected to the optical amplification module 20 to directly control the operation of the optical amplification module 20. For example, the control unit may control the optical magnifying module 20 to stop operating so that both camera modules output a normal image of a large field of view.

Referring to fig. 1, in some embodiments, when it is necessary to capture and output a general image of a large field of view of a target object, the control unit may select the operating state of the first camera module 110 as a stop state, at which time, only the second camera module 120 captures and outputs an image. In some embodiments, when the local enlarged image of the target object needs to be captured and output, the control unit may select the operating state of the first camera module 110 as the operating state, and at this time, the first camera module 110 may capture and output the enlarged image of the target object. In some embodiments, when the operating state of the first camera module 110 is the operating state, the control unit may also control the operating state of the second camera module 120 to be the stop or operating state. At this time, if the working state of the second camera module 120 is a stop state, the camera module 10 only collects and outputs a locally enlarged image of the target object; if the operating state of the second camera module 120 is the operating state, the camera module 10 can simultaneously capture and output the general image and the partially enlarged image of the large field of view of the target object.

In some embodiments, the camera module 10 may further include a first camera module fixedly coupled to the first optical module, a second camera module fixedly coupled to the second optical module, and a third camera module not coupled to the optical module. The first optical module and the second optical module have different magnification factors. The user can select whether to collect the amplified image and the amplification factor of the amplified image according to the requirement through the control unit. For example, when only the third camera module works, the acquired image has no amplification effect; when only the first camera module works, the magnification of the collected image corresponds to the first optical module; and when only the second camera module works, the magnification of the image and the second optical module object are collected.

In some embodiments, the optical magnification module 20 may include at least one magnification lens that may magnify the image of the target object. In some embodiments, the at least one magnification lens is disposed in front of the camera module 10 with the axes coincident. In some embodiments, the optical amplification module 20 may include at least two magnification increasing mirrors with different magnifications, and an appropriate camera module may be selected to be combined as needed to achieve different magnifications. For example, the optical amplification module 20 may include a 2-time focal length magnification lens and a 5-time focal length magnification lens, and may collect 2-time optical amplification images or 5-time optical amplification images according to different combinations of the magnification lens and the camera module. In some embodiments, the magnification of the optical magnification module 20 can be in the range of 1 to 100. In some embodiments, the magnification of the optical magnification module 20 may be in the range of 2 to 80. In some embodiments, the magnification of the optical magnification module 20 may be in the range of 2 to 60. In some embodiments, the magnification of the optical magnification module 20 may be in the range of 2 to 40. In some embodiments, the magnification of the optical magnification module 20 may be in the range of 2 to 20.

In some embodiments, the optical magnification module 20 may further include a variable focus lens group. In some embodiments, the variable focus lens group may be a lens group that can vary the focal length within a certain range, thereby obtaining different angles of view, different size of images and different ranges of scenes. In some embodiments, the change of focal length can be achieved by changing the positional relationship of the lenses in the variable focus lens group, thereby achieving different magnifications. In some embodiments, the zoom lens set has a magnification range of 1-100, and the magnification of the zoom lens set can be arbitrarily selected within the range.

In some embodiments, the camera module 10 may further include a first fiber bundle 401 having a first focal length and a second fiber bundle 402 having a second focal length, where the first focal length and the second focal length are not equal. In some embodiments, the second focal length is greater than the first focal length. The first fiber optic bundle 401 may be used to acquire a general image of a large field of view of the target object and the second fiber optic bundle 402 may be used to acquire a locally magnified image of the target object.

In some embodiments, the control unit may be configured to control the first fiber bundle 401 and/or the second fiber bundle 402 to switch the operating state of the camera assembly 200. In some embodiments, the operating state may include a first state and a second state. In some embodiments, the first state may be an amplified state and the second state may be a normal state. In some embodiments, when the control unit controls the second fiber bundle 402 to operate, the camera assembly 200 is in a first state, and the camera assembly 200 may capture and output a locally enlarged image of the target object; when the control unit controls the second fiber bundle 402 not to work, the camera assembly 200 is in the second state, and the camera assembly 200 can output a general image of a large field of view of the target object at this time.

In some embodiments, the first fiber bundle 401 and the second fiber bundle 402 may be arranged in a staggered manner, so that when the control unit controls the second fiber bundle 402 not to operate, each fiber in the first fiber bundle 401 can still uniformly acquire the image data of the target object.

In some embodiments, the control unit may control whether the first optical fiber bundle 401 and the second optical fiber bundle 402 operate simultaneously, so as to control the operating state of the camera, i.e. amplification or non-amplification. For example, in some embodiments, the control unit may control the first fiber bundle 401 to operate and the second fiber bundle 402 to not operate, and the camera assembly 200 may capture and/or output a general image of a large field of view of the target object. In some embodiments, the control unit may control the first fiber bundle 401 to operate and the second fiber bundle 402 to operate, and the camera assembly 200 may simultaneously acquire and/or output a general image and a partially enlarged image of a large field of view of the target object. In some embodiments, the control unit may control the first fiber bundle 401 to be inactive and the second fiber bundle 402 to be active, and the camera assembly 200 may capture and/or output a partially enlarged image of the target object. In some embodiments, the control unit may control the first fiber bundle 401 to be inactive and the second fiber bundle 402 to be inactive, while the camera assembly 200 does not capture and output any images.

Correspondingly, in some embodiments, the control unit may be connected to the second optical fiber bundle, and control whether the camera collects the magnified image by controlling whether the second optical fiber bundle is operated. In some embodiments, the control unit may be connected to the first fiber bundle and the second fiber bundle simultaneously, and control the operating state of the camera by controlling whether the first fiber bundle and the second fiber bundle operate, i.e., whether the acquired image includes a magnified image.

In some embodiments, the parameters of the first optical fiber bundle 401 and the second optical fiber bundle 402 can be interchanged, and the functions of the two can be interchanged correspondingly. The specific implementation manner after the interchange can be correspondingly understood by referring to the foregoing embodiments, and details are not described herein.

The beneficial effects that may be brought about by the camera head assembly of the endoscope disclosed in the present application include, but are not limited to: (1) the embodiment of the application can optically amplify the target object, effectively increase the amplification factor and judge the details of the target object through a more visual image; (2) the embodiment of the application has the advantages of simple structure, easiness in implementation and low cost.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Finally, it should be understood that the embodiments described herein are merely illustrative of the principles of the embodiments of the present application. Other variations are also possible within the scope of the present application. Thus, by way of example, and not limitation, alternative configurations of the embodiments of the present application can be viewed as being consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to only those embodiments explicitly described and depicted herein.

Claims

1. A camera head assembly of an endoscope, wherein the camera head assembly comprises:

The camera module is used to collect the image data of the target object;

an optical amplification module optionally used in conjunction with the camera module;

a control unit for controlling the optical amplification module to switch between different states;

When the optical amplification module is in the first state, the optical amplification module is mated with the camera module, and the camera assembly collects the enlarged image;

When the optical amplification module is in the second state, the optical amplification module is separated from the camera module, and the camera assembly collects ordinary images.

2 . The camera assembly according to claim 1 , wherein the camera module comprises a lens and a photosensitive chip corresponding to the lens; when the optical amplification module is in the first state, the The axis coincides with the axis of the lens.

3 . The camera assembly according to claim 2 , wherein the optical amplifying module is switched between the first state and the second state by means of linear motion or rotational motion. 4 .

4 . The camera assembly according to claim 3 , wherein the control unit further comprises a driving motor, and under the action of the driving motor, the optical amplifying module moves from the first state to the second state. 5 .

5 . The camera assembly according to claim 4 , wherein the output mode of the driving motor is linear motion or rotation. 6 .

6. The camera assembly of claim 4, wherein the camera module comprises a first camera module and a second camera module; the optical amplifying module is movably switchable between different states;

When the optical amplification module is in the first state, the axes of the optical amplification module and the first camera module or the second camera module are coincident; when the optical amplification module is in the second state, all The axes of the optical module, the first camera module and the second camera module are separated from each other.

7 . The camera assembly according to claim 2 , wherein the camera module comprises a first camera module and a second camera module; the optical amplification module is coaxially and fixedly arranged on one of the cameras. 8 . the front of the module;

The control unit is connected with the first camera module and the second camera module, and selects the magnification state of the camera assembly by selecting the working state of the first camera module.

8 . The camera assembly according to claim 1 , wherein the optical magnifying module comprises at least one magnifying mirror; the at least one magnifying mirror is disposed in front of the camera module in a way that the axes are coincident. 9 .

9. The camera assembly of claim 8, wherein

The optical magnification module includes at least two magnification lenses with different magnifications, and suitable camera modules can be selected and combined as required to achieve different magnifications.

10. The camera assembly of claim 1, wherein

The magnification of the optical amplification module is 1-100.

11. The camera assembly of claim 1, wherein the camera module comprises a first fiber optic bundle with a first focal length; the optical amplification module comprises a second fiber optic bundle with a second focal length; The focal length is greater than the first focal length;

When the second optical fiber is working, the camera assembly is in the first state; when the second optical fiber bundle is not working, the camera is in the second state.

12 . The camera assembly of claim 11 , wherein the first fiber bundle and the second fiber bundle are arranged in a staggered manner. 13 .

13 . The camera assembly according to claim 11 , wherein the control unit is connected to at least the second optical fiber bundle, and is used to control whether the second optical fiber bundle works. 14 .