Endoscopic cameras and endoscopy camera systems

Abstract

An endoscopic camera head and an endoscopic camera system, the endoscopic camera head includes a handle, a chip module and an optical module, the chip module includes a shell, a chip assembly and an adjusting member, the shell is installed in the accommodating cavity of the handle, the chip assembly is installed in the shell, the shell has a light inlet end, the light inlet end is provided with a light inlet port, the chip assembly is used to convert the optical signal into an electrical signal, the adjusting member is provided on the shell, the adjusting member is used to adjust the radial direction of the chip assembly. Since the chip module is provided with an adjusting member, the adjusting member can adjust the radial position between the optical assembly and the chip assembly, so that the optical assembly and the chip assembly are aligned along the axial direction. Through the provision of the adjusting member, the endoscopic camera head and the endoscopic camera system enable the optical assembly and the chip assembly to achieve axial alignment through radial adjustment, correct the imaging eccentricity problem, and improve the imaging quality.

Description

Technical Field

[0001] The present invention relates to an in-vivo diagnostic instrument, and in particular to an endoscopic camera head and an endoscopic camera system. Background Art

[0002] Rigid endoscopes are mainly used for the diagnosis and (or) treatment of lesions in the natural cavities of the superficial and shallow parts of the human body and in the oral cavities opened through puncture, such as cystoscopes and hysteroscopes. Rigid endoscopes cannot be bent during operation.

[0003] A rigid endoscope primarily consists of a camera, light source, light guide, endoscope, optical mount, camera host, and display. The camera includes components such as the optical module and chip module. These components must be aligned along the optical axis, but installation errors can occur between components, leading to misalignment between the optical and chip components and an off-center effect in the image. Summary of the Invention

[0004] In one embodiment, an endoscope camera head is provided, comprising:

[0005] A handle, wherein the handle has a receiving cavity, and one end of the handle has an opening communicating with the receiving cavity;

[0006] A chip module, comprising a housing, a chip assembly, and an adjusting member. The housing is mounted in the accommodating cavity of the handle, and the chip assembly is mounted in the housing. The housing has a light inlet end, and the light inlet end is provided with a light inlet port. The chip assembly is used to convert optical signals into electrical signals.

[0007] and an optical module, the optical module comprising a lens barrel and an optical assembly, the optical assembly being installed in the lens barrel, the lens barrel having a light-emitting end, the light-emitting end of the lens barrel being connected to the light-incoming end of the housing;

[0008] The adjusting member is arranged on the housing and is used to perform radial adjustment on the chip assembly.

[0009] In one embodiment, the adjustment member includes an adjustment rod, an adjustment hole is provided on the housing and / or the lens barrel, the adjustment rod is passed through the adjustment hole, and the adjustment rod is used to adjust and fix the radial position of the chip assembly and / or optical assembly.

[0010] In one embodiment, the light input end of the shell is provided with a first connecting part, and the light output end of the lens barrel is provided with a second connecting part; the adjusting rod is arranged in the first adjusting hole and the second adjusting hole, and the adjusting rod is used to fix the first connecting part and the second connecting part; the inner diameter of the first adjusting hole is adapted to the outer diameter of the adjusting rod, and the inner diameter of the second adjusting hole is larger than the outer diameter of the adjusting rod; or, the inner diameter of the second adjusting hole is adapted to the outer diameter of the adjusting rod, and the inner diameter of the first adjusting hole is larger than the outer diameter of the adjusting rod; or the inner diameters of both adjusting holes are larger than the outer diameter of the adjusting rod.

[0011] In one embodiment, an adjustment seat is provided at the light input end of the shell; the adjustment seat is provided with a first connecting part, and a second connecting part is provided at the light output end of the lens barrel; the first connecting part is provided with a first adjustment hole, and the second connecting part is provided with a second adjustment hole; the adjustment rod is arranged in the first adjustment hole and the second adjustment hole, and the adjustment rod is used to fix the first connecting part and the second connecting part; the inner diameter of the first adjustment hole is adapted to the outer diameter of the adjustment rod, and the inner diameter of the second adjustment hole is larger than the outer diameter of the adjustment rod; or, the inner diameter of the second adjustment hole is adapted to the outer diameter of the adjustment rod, and the inner diameter of the first adjustment hole is larger than the outer diameter of the adjustment rod; or the inner diameter of the two adjustment holes is larger than the outer diameter of the adjustment rod.

[0012] In one embodiment, a mounting hole is provided at the light inlet end of the housing, and one end of the adjustment seat can be axially adjusted and installed in the mounting hole of the housing.

[0013] In one embodiment, a fixing screw is provided on the housing, and the fixing screw fixes one end of the adjustment seat to the housing.

[0014] In one embodiment, a front cover is installed at the opening of the accommodating cavity of the handle, a through hole is provided in the middle of the front cover, and the lens barrel is inserted into the through hole of the front cover; a screw hole is provided on the axial inner side surface of the front cover, and the adjusting rod is a screw rod or a screw, and the adjusting rod is connected to the screw hole of the front cover.

[0015] In one embodiment, an adjustment seat and a mounting hole are provided at the light-inlet end of the shell, and one end of the adjustment seat is installed in the mounting hole of the shell; the outer diameter of one end of the adjustment seat is smaller than the inner diameter of the mounting hole of the shell, and at least three adjustment holes are provided on a circumference of the light-inlet end of the shell, and an adjustment rod is installed on each of the adjustment holes.

[0016] In one embodiment, the adjustment hole is a threaded hole, the adjustment rod is a screw or a bolt, and the end of the adjustment rod passes through the adjustment hole and abuts against one end of the adjustment seat.

[0017] In one embodiment, a gasket is provided between the end of the adjusting rod and the adjusting seat.

[0018] In one embodiment, an endoscope camera head is provided, comprising:

[0019] A handle, wherein the handle has a receiving cavity, and one end of the handle has an opening communicating with the receiving cavity;

[0020] A chip module, comprising a housing and a chip assembly, wherein the housing is mounted in the accommodating cavity of the handle, and the chip assembly is mounted in the housing, wherein the housing has a light inlet end, the light inlet end is provided with a light inlet port, and the chip assembly is used to convert optical signals into electrical signals;

[0021] and an optical module, the optical module comprising a lens barrel, an optical component and an adjusting member, the optical component being installed in the lens barrel, the lens barrel having a light-emitting end, the light-emitting end of the lens barrel being connected to the light-incoming end of the housing;

[0022] The adjusting member is arranged on the lens barrel, and is used to perform radial adjustment on the optical component.

[0023] In one embodiment, the adjustment member includes an adjustment rod, an adjustment hole is provided on the housing and / or the lens barrel, the adjustment rod is passed through the adjustment hole, and the adjustment rod is used to adjust and fix the radial position of the chip assembly and / or optical assembly.

[0024] In one embodiment, a first connecting part is provided at the light input end of the shell, and a second connecting part is provided at the light output end of the lens barrel; a first adjustment hole is provided on the first connecting part, and a second adjustment hole is provided on the second connecting part; the adjusting rod is arranged in the first adjusting hole and the second adjusting hole, and the adjusting rod is used to fix the first connecting part and the second connecting part; the inner diameter of the first adjusting hole is adapted to the outer diameter of the adjusting rod, and the inner diameter of the second adjusting hole is larger than the outer diameter of the adjusting rod; or, the inner diameter of the second adjusting hole is adapted to the outer diameter of the adjusting rod, and the inner diameter of the first adjusting hole is larger than the outer diameter of the adjusting rod; or the inner diameters of the two adjusting holes are larger than the outer diameter of the adjusting rod.

[0025] In one embodiment, an adjustment seat is provided at the light-emitting end of the lens barrel; the adjustment seat is provided with a first connecting part, and the light-input end of the shell is provided with a second connecting part; a first adjustment hole is provided on the circumference of the first connecting part, and a second adjustment hole is provided on the second connecting part; the inner diameter of one of the first adjustment hole and the second adjustment hole is adapted to the outer diameter of the adjustment rod, and the inner diameter of the other adjustment hole is larger than the outer diameter of the adjustment rod, or the inner diameters of both adjustment holes are larger than the outer diameter of the adjustment rod; the adjustment rod is arranged in the first adjustment hole and the second adjustment hole, and the adjustment rod is used to fix the first connecting part and the second connecting part.

[0026] In one embodiment, a front cover is installed at the opening of the accommodating cavity of the handle, a through hole is provided in the middle of the front cover, and the lens barrel is inserted into the through hole of the front cover; a screw hole is provided on the axial inner side surface of the front cover, and the adjusting rod is a screw rod or a screw, and the adjusting rod is connected to the screw hole of the front cover.

[0027] In one embodiment, the outer diameter of the optical component is smaller than the inner diameter of the lens barrel, and at least three adjustment holes are provided on a circumference of the lens barrel. An adjustment rod is installed on each adjustment hole, and the adjustment hole is a threaded hole. The adjustment rod is a screw or a screw, and the end of the adjustment rod passes through the adjustment hole and rests on the optical component.

[0028] In one embodiment, the optical assembly includes a lens seat and a lens group, the lens seat is a cylindrical structure, the lens group is installed in the lens seat, and the end of the adjustment rod rests on the outer circumferential surface of the lens seat.

[0029] In one embodiment, a gasket is provided between the end of the adjusting rod and the outer circumferential surface of the lens holder.

[0030] In one embodiment, an endoscopic camera head is provided, comprising:

[0031] A handle, wherein the handle has a receiving cavity, and one end of the handle has an opening communicating with the receiving cavity;

[0032] A chip module, comprising a housing and a chip assembly, wherein the housing is mounted in the accommodating cavity of the handle, and the chip assembly is mounted in the housing, wherein the housing has a light inlet end, the light inlet end is provided with a light inlet port, and the chip assembly is used to convert optical signals into electrical signals;

[0033] and an optical module, the optical module comprising a lens barrel and an optical assembly, the optical assembly being installed in the lens barrel, the lens barrel having a light-emitting end, the light-emitting end of the lens barrel being connected to the light-incoming end of the housing;

[0034] An installation hole is provided at one end of the shell facing the lens barrel, one end of the lens barrel is arranged in the installation hole of the shell, and a gap for radial adjustment installation is provided between the shell and the lens barrel.

[0035] In one embodiment, the housing and the lens barrel are fixed by gluing or screws.

[0036] In one embodiment, a threaded hole is provided on the shell, the screw is fixed on the threaded hole of the shell, the end of the screw rests on the outer circumferential surface of the lens barrel, and a gasket is provided between the end of the screw and the outer circumferential surface of the lens barrel.

[0037] An embodiment provides an endoscopic camera head, characterized by comprising:

[0038] A handle, wherein the handle has a receiving cavity, and one end of the handle has an opening communicating with the receiving cavity;

[0039] A chip module, comprising a housing and a chip assembly, wherein the housing is mounted in the accommodating cavity of the handle, and the chip assembly is mounted in the housing, wherein the housing has a light inlet end, the light inlet end is provided with a light inlet port, and the chip assembly is used to convert optical signals into electrical signals;

[0040] and an optical module, the optical module comprising a lens barrel and an optical assembly, the optical assembly being installed in the lens barrel, the lens barrel having a light-emitting end, the light-emitting end of the lens barrel being connected to the light-incoming end of the housing;

[0041] The housing is provided with a mounting portion at one end facing the lens barrel. The mounting portion of the housing is arranged in the lens barrel. A radially adjustable mounting gap is provided between the mounting portion of the housing and the lens barrel.

[0042] In one embodiment, the mounting portion of the housing and the lens barrel are fixed by gluing or screws.

[0043] In one embodiment, a threaded hole is provided on the lens barrel, the screw is fixed on the threaded hole of the lens barrel, the end of the screw rests on the mounting portion of the shell, and a gasket is provided between the end of the screw and the mounting portion of the shell.

[0044] In one embodiment, an endoscopic camera system is provided, comprising a light source, a light guide, an endoscope, an optical mount, a communication cable, a camera host, a display, a video connection cable, and an endoscopic camera head according to any one of claims 1 to 13, wherein the light source is connected to the endoscope via the light guide, one end of the endoscopic camera head is connected to the endoscope via the optical mount, the other end of the endoscopic camera head is connected to the camera host via the communication cable, and the camera host is connected to the display via the video connection cable.

[0045] According to the endoscopic camera head and endoscopic imaging system of the above-described embodiment, the chip module is provided with an adjustment member that can adjust the radial position between the optical assembly and the chip assembly, thereby aligning the optical assembly and the chip assembly along the axial direction. The endoscopic camera head and endoscopic imaging system, through the provision of the adjustment member, enables the optical assembly and the chip assembly to be aligned axially through radial adjustment, thereby correcting imaging eccentricity and improving imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic structural diagram of an endoscope camera system in one embodiment;

[0047] Figure 2 This is a schematic structural diagram of an endoscope camera in one embodiment;

[0048] Figure 3 is an axial cross-sectional view of an endoscope camera head in one embodiment;

[0049] Figure 4 An exploded schematic diagram of a chip module in one embodiment;

[0050] Figure 5 This is a schematic structural diagram of a chip module in an embodiment;

[0051] Figure 6 for Figure 3 A partial enlarged view of middle A;

[0052] Figure 7 is an axial cross-sectional view of an endoscope camera head in one embodiment;

[0053] Figure 8 This is a schematic structural diagram of a bracket in an embodiment;

[0054] Figure 9 An axial cross-sectional view of a chip module in one embodiment;

[0055] Figure 10 is a radial cross-sectional view of a chip module in one embodiment;

[0056] Figure 11is an axial cross-sectional view of an optical module in one embodiment;

[0057] Figure 12 is a radial cross-sectional view of an optical module in one embodiment;

[0058] Figure 13 is an axial cross-sectional view of an endoscope camera head in one embodiment;

[0059] Figure 14 is a radial cross-sectional view of an endoscope camera head in one embodiment;

[0060] Figure 15 is an axial cross-sectional view of an endoscope camera head in one embodiment;

[0061] Figure 16 A radial cross-sectional view of an endoscope camera head in one embodiment. DETAILED DESCRIPTION

[0062] Wherein similar elements in different embodiments have adopted associated similar element labels.In the following embodiments, many detailed descriptions are in order to make the present application better understood. However, those skilled in the art can effortlessly realize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core part of the present application being overwhelmed by too much description. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in this area.

[0063] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0064] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0065] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be noted that

[0066] Please refer to Figure 1In one embodiment, an endoscopic camera system 1000 is provided. The endoscopic camera system 1000 includes a light source 10, a light guide 20, a rigid tube endoscope 30, an optical mount 40, an endoscopic camera head 50, a communication cable 81, a camera host 60, a display 70, and a video connection cable 82. The camera host 60 is connected to the endoscopic camera head 50 via the communication cable 81, and the image signal obtained by the endoscopic camera head 50 is transmitted to the camera host 60 via the communication cable 81 for processing. In some embodiments, the communication cable 81 may be an optical communication cable, such as an optical fiber; the endoscopic camera head 50 converts the image signal (electrical signal) into an optical signal, which is transmitted to the camera host 60 via the communication cable 81, and the camera host 60 then converts the optical signal into an electrical signal. The camera host 60 is connected to the display 70 via the video connection cable 82 for sending the video signal to the display 70 for display. It should be understood by those skilled in the art that Figure 1 The endoscopic camera system 1000 is merely an example and does not limit the endoscopic camera system 1000. The endoscopic camera system 1000 may include Figure 1 More or fewer components, or combinations of certain components, or different components may be shown. For example, the endoscopic camera system 1000 may also include a dilator, a smoke control device, input and output devices, a network access device, etc.

[0067] The light source 10 is used to provide an illumination source to the observed area 100. The illumination source includes a visible light source and a laser illumination source (such as near-infrared light) corresponding to a fluorescent agent. The light source 10 includes, but is not limited to, a laser light source, an LED light source, or a laser diode.

[0068] In this embodiment, the light source 10 includes a visible light source and a laser light source corresponding to the fluorescent reagent. The visible light source is an LED light source. In one embodiment, the visible light source can provide multiple monochromatic lights of different wavelength ranges, such as blue light, green light, red light, etc. In other embodiments, the visible light source can also provide a combination of the multiple monochromatic lights, or a wide-spectrum white light source. The wavelength range of the monochromatic light is approximately 400nm to 700nm. The laser light source is used to generate laser. The laser is, for example, near infrared light (NIR). The peak wavelength of the laser is at least one value within the range of 780nm or 808nm.

[0069] Since the light source 10 can simultaneously provide continuous visible light and laser light corresponding to the fluorescent agent to the part to be observed, the efficiency of the camera 50 in collecting visible light image signals and fluorescent image signals reflected by the part to be observed 100 is improved.

[0070] Prior to imaging using the endoscopic camera system 1000, a contrast agent, such as indocyanine green (ICG), is introduced into the observed area 100 via intravenous or subcutaneous injection. This allows for imaging of tissue structures and functions (e.g., blood, lymph, and bile in vessels) that are not easily visualized using standard visible light imaging techniques. The observed area 100 includes, but is not limited to, the circulatory system, lymphatic system, and tumor tissue. ICG, commonly known as indocyanine green, diagnostic green needle, or indocyanine green, is a contrast agent commonly used in the clinical diagnosis of cardiovascular diseases and is widely used for imaging choroidal and retinal blood vessels. When the contrast agent in the observed area 100 absorbs the laser light generated by the laser light source corresponding to the fluorescent agent, it produces fluorescence.

[0071] An endoscopic camera 50 is provided in one embodiment. This application is described using a rigid tube endoscopic camera as an example. The endoscopic camera can also be applied to a flexible endoscope.

[0072] Please refer to Figure 2 and Figure 3 The endoscope camera head of this embodiment includes a handle 1, a chip module 2, an optical module 3 and a hand wheel 4.

[0073] The handle 1 has the function of accommodating components and holding. The handle 1 has a accommodating cavity 11. Both ends of the handle 1 have openings connected to the accommodating cavity 11. The openings at both ends of the handle 1 are used to connect the communication cable 81 and the optical module 3 respectively. The chip module 2 is accommodated in the handle 1. The handle 1 is also equipped with a button assembly 12. The button assembly 12 is connected to the chip module 2 through a cable. The doctor can hold the handle 1 and control the imaging detection of the endoscope camera through the button assembly 12. A front cover 5 is provided at the end of the handle 1 close to the handwheel 4. The middle part of the front cover 5 has a through hole. The front cover 5 is installed on the opening of the handle 1. The front cover 5 is used to install the chip module 2 and the optical module 3 in the accommodating cavity 11 of the handle 1.

[0074] The chip module 2 includes a housing 21, a chip assembly 22, and an adjustment member 23. The chip assembly 22 is installed in the housing 21. The chip assembly 22 includes components such as a sensor and a processor. The sensor is an optical sensor that converts optical signals into electrical signals. The sensor is used to amplify, filter, and other processes the electrical signals output by the sensor. The processor transmits the processed electrical signals to the host 60 via a communication cable 81 for further processing. The end of the housing 21 facing the front cover 5 is the light-inlet end. The light-inlet end of the housing 21 has a light inlet 211. The sensor of the chip assembly 22 is aligned with the light inlet 211. The housing 21 is also provided with a wire hole. The communication cable 81 can pass through the wire hole of the housing 21 and extend into the housing 21 to connect to the processor.

[0075] Please refer to Figure 4 and Figure 5 The light-inlet end of the housing 21 is also provided with an adjustment seat 24. The light-inlet end of the housing 21 is provided with a mounting hole. The adjustment seat 24 is a cylindrical structure. One end of the adjustment seat 24 is inserted into the mounting hole of the housing 21. The other end of the adjustment seat 24 has a radial protrusion. The axial end surface of the protrusion abuts against the end surface of the light-inlet end of the housing 21, acting as an axial limiter. The adjustment seat 24 can be installed axially adjustable relative to the housing 21. The housing 21 is provided with a threaded hole 212. A fixing screw 213 is installed in the threaded hole 212. The end of the fixing screw 213 passes through the threaded hole 212 and abuts against the outer wall of the adjustment seat 24. The fixing screw 213 locks the adjustment seat 24 within the housing 21. After loosening the fixing screw 213, the adjustment seat 24 can move axially relative to the shell 21, and then during the installation process, the axial position of the adjustment seat 24 can be adjusted to a preset position and then locked by the fixing screw 213, thereby improving the axial position accuracy of the chip component 22 and the optical module 3, making the chip component 22 more accurately focused.

[0076] One end of the adjustment seat 24 exposed from the housing 21 is provided with a radially protruding first connection portion 241 . Preferably, two symmetrical first connection portions 241 are provided, and an axial first adjustment hole 242 is respectively provided on the two first connection portions 241 .

[0077] Please refer to Figure 3 and Figure 6 The optical module 3 includes a lens barrel 31 and an optical assembly 32. The optical assembly 32 is fixedly mounted in the lens barrel 31 and includes a plurality of lenses. The optical assembly 32 is used to transmit imaging light to the chip assembly 22. The optical assembly 32 can also be axially adjusted in the lens barrel 31. A handwheel 4 is mounted on the lens barrel 31. The handwheel 4 passes through the lens barrel 31 and is connected to the optical assembly 32 via a connecting piece. The optical assembly 32 can then be moved axially by rotating the handwheel, thereby achieving optical zoom.

[0078] The lens barrel 31 has a light-input end and a light-output end. The end of the lens barrel 31 facing the chip module 2 is the light-output end. A radially protruding second connecting portion 311 is provided on the outer circumference of the light-output end of the lens barrel 31. The second connecting portion 311 is symmetrical and has two axially oriented second adjustment holes 312 disposed therein. The second adjustment holes 312 correspond one-to-one with the first adjustment holes 242.

[0079] Two threaded holes are provided on the axial inner side surface of the front cover 5, the light-emitting end of the lens barrel 31 is inserted into the through hole of the front cover 5, the second connecting portion 311 of the lens barrel 31 is abutted against the inner side surface of the front cover 5, the first connecting portion 241 of the adjustment seat 24 is abutted against the second connecting portion 311 of the lens barrel 31, and the first adjustment hole 242, the second adjustment hole 312 and the threaded hole of the front cover 5 are aligned.

[0080] The adjusting member 23 is an adjusting rod, specifically a screw structure. The adjusting member 23 passes through the first adjusting hole 242 of the first connecting part 241 and the second adjusting hole 312 of the second connecting part 311 in sequence and is connected to the threaded hole of the front cover 5. The adjusting member 23 locks the adjusting seat 24 and the lens barrel 31 on the front cover 5, thereby fixing the chip module 2 and the optical module 3 on the handle 1.

[0081] The inner diameter of the first adjustment hole 242 of the first connecting portion 241 is larger than the outer diameter of the adjusting member 23, and the inner diameter of the second adjustment hole 312 of the second connecting portion 311 is equal to or slightly larger than the outer diameter of the adjusting member 23. The first adjustment hole 242 has clearance for radial movement relative to the adjusting member 23. Therefore, when the adjusting member 23 is released, the radial position of the adjusting seat 24 relative to the lens barrel 31 can be adjusted. After the chip assembly 22 and the optical assembly 32 are aligned axially, the adjusting seat 24 is locked and secured by the adjusting member 23.

[0082] In this embodiment, the inner diameter of the first adjustment hole 242 is larger than the outer diameter of the adjustment member 23 to achieve radial adjustment, so that the chip component 22 and the optical component 32 can be axially aligned through radial adjustment, correcting the imaging eccentricity problem and improving the imaging quality.

[0083] In other embodiments, the inner diameter of the second adjustment hole 312 is set to be larger than the outer diameter of the adjustment member 23, and the axial alignment of the chip assembly 22 and the optical assembly 32 can be adjusted by adjusting the radial position of the lens barrel 31 relative to the adjustment seat 24. Alternatively, the inner diameters of the first adjustment hole 242 and the second adjustment hole 312 are set to be larger than the outer diameter of the adjustment member 23, and the radial positions of both the lens barrel 31 and the adjustment seat 24 are adjusted simultaneously, so as to achieve the axial alignment of the chip assembly 22 and the optical assembly 32.

[0084] In other embodiments, the lens barrel 31 is provided with an additional radial protrusion for fixed installation, and the radial protrusion is provided with a through hole. The lens barrel 31 is fixed to the front cover 5 by screws, and the adjusting member 23 is used to lock the adjusting seat 24 on the lens barrel 31. Among them, the second adjusting hole 312 is set as a threaded hole, and the inner diameter of the first adjusting hole 242 is larger than the outer diameter of the adjusting member 23. The adjusting member 23 locks the adjusting seat 24 on the lens barrel 31 through the threaded connection with the second adjusting hole 312. It is also possible to adjust the radial position of the adjusting seat 24 relative to the lens barrel 31 and fix the lens barrel 31 and the adjusting seat 24 to the front cover 5.

[0085] An embodiment provides an endoscopic camera head, which differs from the above embodiment in that the adjustment seat 24 is omitted and the housing 21 is directly connected to the lens barrel 31.

[0086] In this embodiment, the outer circumferential edge of the light-inlet end of the housing 21 is provided with two radially protruding first connecting portions 241, each of which has a first adjustment hole 242. The adjustment member 23 secures the housing 21 and the lens barrel 31 to the front cover 5. Because the housing 21 includes the first adjustment hole 242, which has an inner diameter larger than that of the adjustment member 23, the radial position of the housing 21 can be adjusted to achieve axial alignment between the chip assembly 22 and the optical assembly 32.

[0087] An endoscopic camera head is provided in one embodiment, which differs from the above-mentioned embodiment in that a bracket 25 is installed at the light-inlet end of the housing 21 , and the bracket 25 replaces the adjustment seat 24 to achieve axial alignment adjustment.

[0088] Please refer to Figure 7 and Figure 8 In one embodiment, the existing bracket 25 in the endoscope camera head is used as an adjustment seat, eliminating the need for an additional adjustment seat, which can save costs. The bracket 25 is used to mount the housing 21 on the front cover 5. The bracket 25 has an L-shaped structure and includes a first connecting portion 251 and a supporting portion 252 that are perpendicular or nearly perpendicular to each other. The first connecting portion 251 is provided with a first adjustment hole 242, which is used to mount the adjustment member 23. The housing 21 is fixed to the supporting portion 252 of the bracket 25 by screws.

[0089] The adjusting member 23 is threadedly connected to the front cover 5 through the first adjusting hole 242 on the bracket 25 and the second adjusting hole 312 on the lens barrel 31. The inner diameter of the first adjusting hole 242 is larger than the outer diameter of the adjusting member 23. Therefore, by adjusting the radial position of the bracket 25 relative to the lens barrel 31, the axial alignment of the chip assembly 22 relative to the optical assembly 32 can be adjusted.

[0090] An endoscopic camera head is provided in one embodiment, which differs from the above-mentioned embodiment in that the adjustment member 23 is used to adjust the radial position between the housing 21 and the adjustment seat 24 , thereby adjusting the axial alignment between the chip assembly 22 and the optical assembly 32 .

[0091] Please refer to Figure 9In this embodiment, the light-emitting end of the lens barrel 31 and the adjustment seat 24 are fixed to the front cover 5 by screws. The lens barrel 31 is fixed relative to the adjustment seat 24, and the two cannot be adjusted. The outer diameter of one end of the adjustment seat 24 is smaller than the inner diameter of the mounting hole of the light-inlet end of the housing 21, and the adjustment seat 24 has space for radial movement relative to the housing 21. The light-inlet end of the housing 21 is provided with at least three evenly distributed adjustment holes 214 on a circumference. The adjustment holes are threaded holes, and the adjustment members 23 are screws or screws. An adjustment member 23 is installed in each adjustment hole 214 of the housing 21, and one end of the adjustment member 23 rests on the outer surface of the adjustment seat 24. The adjustment member 23 is screwed into the adjustment hole of the housing 21 to different depths to adjust the radial position of the adjustment seat 24, thereby adjusting the alignment of the chip assembly 22 relative to the optical assembly 32.

[0092] In one embodiment, please refer to Figure 10 The adjusting member 23 is installed on the shell 21, and a gasket 215 is provided between the end of each adjusting member 23 and the outer wall of the adjusting seat 24. The gasket 215 is used to increase the contact area between the adjusting member 23 and the adjusting seat 24, and modify the point contact between the adjusting member 23 and the adjusting seat 24 into surface contact, thereby improving the force between the adjusting member 23 and the adjusting seat 24, and making the adjustment of the adjusting member 23 more precise.

[0093] In this embodiment, the optical module 3 is fixedly installed, and the radial position of the chip assembly 22 in the chip module 2 is adjusted separately to achieve alignment adjustment with the optical assembly 32 .

[0094] An embodiment provides an endoscopic camera head, which differs from the above embodiment in that the adjustment member 23 is part of the optical module 3 , and the adjustment seat 24 is installed on the lens barrel 31 .

[0095] Please refer to Figure 11 In this embodiment, the optical module 3 includes a lens barrel 31, an optical assembly 32, and an adjustment member 23. One end of the adjustment seat 24 is inserted into the light-emitting end of the lens barrel 31. The adjustment seat 24 can also be adjusted axially relative to the lens barrel 31. A threaded hole is provided on the lens barrel 31, and a fixing screw is installed in the threaded hole. The end of the fixing screw extends into the lens barrel 31 and abuts against the outer wall of the adjustment seat 24, locking the adjustment seat 24.

[0096] The adjustment seat 24 has a first connection portion 241. The outer circumferential edge of the light-entering end of the housing 21 is provided with two radially protruding second connection portions 311. The second connection portions 311 have axially extending second adjustment holes 312. The inner diameter of the second adjustment holes 312 is larger than the outer diameter of the adjustment member 23. The adjustment member 23 sequentially secures the housing 21 and the adjustment seat 24 to the front cover 5.

[0097] Similarly, by setting the inner diameter of the first adjustment hole 242 on the first connecting part 241 to be larger than the outer diameter of the adjustment member 23, or the inner diameters of the first adjustment hole 242 and the second adjustment hole 312 to be larger than the outer diameter of the adjustment member 23, the axial alignment of the adjustment chip component 22 and the optical component 32 can also be achieved.

[0098] An endoscopic camera head is provided in one embodiment, which differs from the above-mentioned embodiment in that the adjustment member 23 is used to adjust the radial position between the optical component 32 and the lens barrel 31 , thereby adjusting the axial alignment between the chip component 22 and the optical component 32 .

[0099] In this embodiment, the lens barrel 31 and housing 21 are fixed to the front cover 5 via screws. The lens barrel 31 and housing 21 are relatively fixed and cannot be adjusted radially. The optical assembly 32 includes a lens holder 321 and a lens assembly 322. The lens holder 321 is a cylindrical structure. The lens assembly 322 includes several lenses, which are fixedly mounted within the lens holder 321. The outer diameter of the lens holder 321 is smaller than the inner diameter of the lens barrel 31, allowing the lens holder 321 to move radially relative to the lens barrel 31.

[0100] The lens barrel 31 is provided with at least three threaded adjustment holes 311 along its circumference. Each adjustment hole 311 is threaded, and the adjustment member 23 is a threaded rod or screw. An adjustment member 23 is mounted within each adjustment hole 311 of the lens barrel 31, with one end of the adjustment member 23 resting against the outer surface of the lens holder 321. By screwing the adjustment member 23 into the adjustment hole of the lens barrel 31 to varying depths, the radial position of the lens holder 321 is adjusted, thereby adjusting the axial alignment of the optical assembly 32 relative to the chip assembly 22.

[0101] In one embodiment, please refer to Figure 12 An adjusting member 23 is installed on the lens barrel 31, and a gasket 215 is provided between the end of each adjusting member 23 and the outer wall of the lens seat 321. The gasket 215 is used to increase the contact area between the adjusting member 23 and the lens seat 321, and modify the point contact between the adjusting member 23 and the lens seat 321 into surface contact, thereby improving the force between the adjusting member 23 and the lens seat 321, and making the adjustment of the adjusting member 23 more precise.

[0102] In one embodiment, an endoscopic camera head is provided, which includes at least two of the above-mentioned adjustment methods, such as an adjustment member 23 installed on the lens barrel 31, and an adjustment member 23 is also installed between the lens barrel 31 and the housing 21. Among them, the adjustment member 23 on the lens barrel 31 is used to adjust the radial position of the optical assembly 32 and the lens barrel 31, and the adjustment member 23 between the lens barrel 31 and the housing 21 is used to adjust the radial position of the housing 21 relative to the lens barrel 31. Both adjustment methods can independently adjust the axial alignment of the chip assembly 22 and the optical assembly 32, and the coexistence of the two adjustment methods can more efficiently adjust the axial alignment of the chip assembly 22 and the optical assembly 32.

[0103] An embodiment provides an endoscopic camera head, which differs from the above embodiments in that the housing 21 of the chip module 20 and the lens barrel 31 of the optical module 30 are directly connected together in a radially adjustable manner.

[0104] Please refer to Figure 13 A mounting hole is provided at one end of the shell 21 facing the lens barrel 31, and the end of the lens barrel 31 is inserted into the mounting hole of the shell 21. The inner diameter of the mounting hole is slightly larger than the outer diameter of the end of the lens barrel 31, so that there is a radially adjustable gap between the lens barrel 31 and the mounting hole of the shell 21.

[0105] In one embodiment, during the installation process, after the end of the lens barrel 31 is aligned with the mounting hole of the shell 21, fixing glue is injected between the lens barrel 31 and the mounting hole of the shell 21 to fix the lens barrel 31 to the shell 21.

[0106] Please refer to Figure 14 In one embodiment, a plurality of adjustment holes are provided on the housing 21, and an adjustment member 23 is installed in each adjustment hole. The adjustment member 23 is a screw or a threaded hole, and the adjustment hole is a threaded hole. The end of the adjustment member 23 abuts against the outer circumferential surface of the lens barrel 31. In addition, a gasket 215 is provided between the end of the adjustment member 23 and the lens barrel 31. The gasket 215 is used to increase the contact area between the adjustment member 23 and the lens barrel 31, modifying the point contact between the adjustment member 23 and the lens barrel 31 into surface contact, improving the force between the adjustment member 23 and the lens barrel 31, and enabling more precise adjustment of the adjustment member 23.

[0107] An embodiment provides an endoscopic camera head, which differs from the above embodiments in that the housing 21 of the chip module 20 and the lens barrel 31 of the optical module 30 are directly connected together in a radially adjustable manner.

[0108] Please refer to Figure 15A cylindrical mounting portion is provided at one end of the shell 21 facing the lens barrel 31. The mounting portion of the shell 21 is inserted into one end of the lens barrel 31. The inner diameter of the lens barrel 31 is slightly larger than the outer diameter of the mounting portion of the shell 21, so that there is a radially adjustable gap between the lens barrel 31 and the mounting portion of the shell 21.

[0109] In one embodiment, during the installation process, after the mounting portion of the housing 21 is aligned with the lens barrel 31 , fixing glue is injected between the mounting portion of the housing 21 and the lens barrel 31 , and the fixing glue fixes the lens barrel 31 to the housing 21 .

[0110] Please refer to Figure 16 In one embodiment, a plurality of adjustment holes are provided on the lens barrel 31, and an adjustment member 23 is installed in each adjustment hole. The adjustment member 23 is a screw or a bolt, and the adjustment hole is a threaded hole. The end of the adjustment member 23 abuts against the outer circumferential surface of the mounting portion of the housing 21. In addition, a gasket 215 is provided between the end of the adjustment member 23 and the mounting portion of the housing 21. The gasket 215 is used to increase the contact area between the adjustment member 23 and the mounting portion of the housing 21, modifying the point contact between the adjustment member 23 and the mounting portion of the housing 21 into surface contact, thereby improving the force between the adjustment member 23 and the mounting portion of the housing 21, and enabling more precise adjustment of the adjustment member 23.

[0111] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, the above specific embodiments can be modified.

Claims

1. An endoscope camera head, characterized in that: include: A handle, wherein the handle has a receiving cavity, and one end of the handle has an opening communicating with the receiving cavity; A chip module, comprising a housing and a chip assembly, wherein the housing is mounted in the accommodating cavity of the handle, and the chip assembly is mounted in the housing, wherein the housing has a light inlet end, the light inlet end is provided with a light inlet port, and the chip assembly is used to convert optical signals into electrical signals; and an optical module, the optical module comprising a lens barrel, an optical component and an adjusting member, the optical component being installed in the lens barrel, the lens barrel having a light-emitting end, the light-emitting end of the lens barrel being connected to the light-incoming end of the housing; The adjusting member is provided on the lens barrel, and is used to perform radial adjustment on the optical component; The light inlet end of the housing is further provided with an adjustment seat, the light inlet end of the housing is provided with a mounting hole, one end of the adjustment seat is inserted into the mounting hole of the light inlet end of the housing; a threaded hole is provided on the housing, and a fixing screw is installed in the threaded hole; the end of the fixing screw passes through the threaded hole and abuts against the outer wall of the adjustment seat, so that after the axial position of the adjustment seat relative to the housing is adjusted to a preset position during the installation process, the adjustment seat is locked in the housing; The adjustment seat also includes a first connecting portion, the first connecting portion is provided with an axial first adjustment hole, and the lens barrel is provided with an axial second adjustment hole; the adjustment member includes an adjustment rod, the adjustment rod is passed through the first adjustment hole and the second adjustment hole, and the adjustment rod is used to adjust and fix the radial position of the optical component.

2. The endoscope camera head according to claim 1, wherein: The inner diameter of the first adjustment hole is adapted to the outer diameter of the adjustment rod, and the inner diameter of the second adjustment hole is larger than the outer diameter of the adjustment rod; or, the inner diameter of the second adjustment hole is adapted to the outer diameter of the adjustment rod, and the inner diameter of the first adjustment hole is larger than the outer diameter of the adjustment rod; or the inner diameters of both adjustment holes are larger than the outer diameter of the adjustment rod.

3. The endoscope camera head according to claim 1, wherein: A front cover is installed at the opening of the accommodating cavity of the handle, a through hole is provided in the middle of the front cover, and the lens barrel is inserted into the through hole of the front cover; a screw hole is provided on the axial inner side surface of the front cover, and the adjusting rod is a screw rod or a screw, and the adjusting rod is connected to the screw hole of the front cover.

4. An endoscope camera system, characterized in that: It includes a light source, a light guide, an endoscope, an optical mount, a communication cable, a camera host, a display, a video connecting line and an endoscopic camera head according to any one of claims 1 to 3, wherein the light source is connected to the endoscope through the light guide, one end of the endoscopic camera head is connected to the endoscope through the optical mount, the other end of the endoscopic camera head is connected to the camera host through the communication cable, and the camera host is connected to the display through the video connecting line.

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