CN113080816A

CN113080816A - Adjusting device for endoscope light source light path

Info

Publication number: CN113080816A
Application number: CN202110467454.XA
Authority: CN
Inventors: 刘娟娟
Original assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Current assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-07-09

Abstract

The invention provides an adjusting device of an endoscope light source light path, comprising: the first receiving surface is arranged and positioned at a light beam focusing position A of the optical module and has surface transmission characteristics; first installation and adjustment device, first installation and adjustment device are fixed in on the optics platform, and first installation and adjustment device includes: the collimator, a second receiving surface positioned on the focal plane of the collimator and a first camera device, wherein the optical path of the collimator is connected with an optical module; the second receiving surface is arranged perpendicular to the optical axis and has a surface transmission characteristic; the first camera device can realize clear imaging of the second receiving surface through zooming or/and focusing functions, wherein the imaging state comprises near-focus imaging and far-focus imaging; and the display is electrically connected with the first camera device and used for displaying the image formed by the first camera device. The device can realize the light path adjustment of endoscope light source optical module high accuracy, stability, and simple structure, simple to operate.

Description

Adjusting device for endoscope light source light path

Technical Field

The invention relates to the technical field of medical instruments, in particular to an adjusting device for an endoscope light source light path.

Background

According to the diagnostic requirements of endoscopes applied to the medical field, the endoscope light source is provided with a white light source and a narrow-band spectrum light source, and therefore, the light source is required to adopt a multiplex light system. In addition to the conventional xenon lamp/halogen white Light source, an additive white Light source in which blue, green, and red LDs (laser diodes) or LEDs (Light Emitting diodes) having longer life are combined by a dichroic sheet is used.

The addition of multiple light sources further complicates the adjustment of the light path of the endoscope light source, and the endoscope light source in the medical field has strict requirements on the color balance of the spectrum, thus placing higher requirements on the light path assembly. As for an optical module serving as a core of an endoscope light source, optical path adjustment directly affects performance indexes of output illumination light, and has an important influence on normal operation of an endoscope imaging system, so how to perform high-precision adjustment on an endoscope light source optical path becomes a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an adjusting device for an endoscope light source optical path.

The technical scheme adopted by the invention is as follows:

the invention provides an adjusting device of an endoscope light source optical path, wherein an endoscope light source optical module is provided with a plurality of optical components to be adjusted, the adjusting device is used for sequentially adjusting the optical components, and the adjusting device comprises: the first receiving surface is installed and positioned at a light beam focusing position A of the optical module and has surface transmission characteristics; a first assembly and adjustment device, the first assembly and adjustment device is fixed on the optical platform, the first assembly and adjustment device includes: the collimator, a second receiving surface positioned on the focal plane of the collimator and a first camera device, wherein the optical path of the collimator is connected with the optical module; the second receiving surface is arranged perpendicular to the optical axis and has a transmission characteristic; the first camera device can realize clear imaging of the second receiving surface through zooming or/and focusing functions, wherein the imaging state comprises near-focus imaging and far-focus imaging; and the display is electrically connected with the first camera device and used for displaying the image of the first camera device.

The adjusting device for the endoscope light source light path provided by the invention can also have the following additional technical characteristics:

according to an embodiment of the invention, the first receiving surface is further provided with a transmission characteristic, the adjusting device further comprising: the beam splitter is arranged at a first preset included angle alpha with an optical axis, has transmission and surface reflection characteristics, and is used for transmitting the transmitted light beam of the first receiving surface into the first adjusting device and reflecting the transmitted light beam into the second adjusting device; the second adjusting device, the first adjusting device and the optical axis are symmetrically arranged relative to the reflecting surface of the spectroscope, the second adjusting device comprises a second camera device, the second camera device is electrically connected with the display, and the second camera device can realize clear imaging of the first receiving surface through zooming or/and focusing functions; the display is also used for displaying the imaging of the second camera device.

According to an embodiment of the invention, said first preset included angle α is 45 °.

According to an embodiment of the present invention, the above-mentioned adjusting device for an endoscope light source light path further includes: the operation group is respectively connected with the plurality of optical components of the optical module and is used for driving the light source module to carry out axial adjustment, vertical axis adjustment or angle adjustment; the control group is respectively connected with the operation group, the first camera device and the second camera device, and is used for sending a control instruction to the operation group according to the imaging of the first camera device and the second camera device so that the operation group drives the light source module to adjust.

According to one embodiment of the invention, the optical module is connected with a receiving surface of a fiber optic light guide bundle at a focusing position A so as to conduct light through the light guide bundle.

According to an embodiment of the invention, the second receiving surface is centrally provided with a cross-shaped reticle and a scale.

According to one embodiment of the invention, the central region of the first receiving surface is provided with a circular ring, and the diameter of the circular ring is equal to the light passing diameter of the incident surface of the light guide beam.

According to an embodiment of the present invention, the material of the first receiving surface is optical glass or optical plastic.

According to an embodiment of the present invention, the material of the second receiving surface is optical glass or optical plastic, or white paper is adopted as a simple substitute.

According to an embodiment of the present invention, the optical module is a three-way light combining system, a four-way light combining system, or other types of light combining systems.

The invention has the beneficial effects that:

the invention can realize high-precision and stable adjustment of the light source light path of the endoscope, and has simple structure and convenient installation.

Drawings

FIG. 1 is a schematic diagram of a three-way combining optical system according to one embodiment of the present invention;

FIG. 2 is a schematic diagram of a setup device for an endoscope light source circuit according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of an adjustment apparatus for the light path of an endoscope light source according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram of a four-way light combining system according to one embodiment of the invention;

FIG. 5 is a schematic diagram of an adjustment apparatus for the light path of an endoscope light source according to a third embodiment of the present invention;

FIG. 6 is a schematic diagram of an adjustment apparatus for the light path of an endoscope light source according to a fourth embodiment of the present invention;

FIG. 7 is a schematic diagram of an adjustment apparatus for an endoscope light source path according to a fifth embodiment of the present invention.

Reference numerals:

a first optical module 10; a first light source 11; a second light source 12; a third light source 13; a first collimating lens group 21; a second collimating lens group 22; a third collimating lens group 23; first dichroic mirror 31; second dichroic mirror 32; a focusing lens group 4; a light guide bundle 40; a first receiving surface 5; a spectroscope 6; a first adjusting device 7; a second tuning device 8; the collimator 71; a second receiving surface 72; a first imaging device 73; a second imaging device 83; a display 9; a collimated light source 20; a second optical module 30; a fourth light source 14; a fourth collimating lens group 24; a third dichroic mirror 33; an automated assembly 90; an operation group 91; control group 92.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The optical module of the endoscope light source of the present invention may be a three-way light combining system, a four-way light combining system, or other types of light combining systems, the three-way light combining system corresponds to the first optical module 10 described below, and the four-way light combining system corresponds to the second optical module 30 described below.

When the optical module of the endoscope light source is a three-way combined optical system, as shown in fig. 1, 2 and 3, the first optical module 10 of the endoscope light source is highly precisely adjusted, and the first optical module 10 includes a plurality of optical components and corresponding mechanical components for installation, fixation and adjustment. As shown in fig. 1, the first optical module 10 is a three-way light-combining system; as shown in fig. 2, the first optical module 10 and the adjusting device are relatively placed on the optical platform for adjustment, the optical path of the first optical module 10 is connected with the collimator, the first optical module 10 is fixed on the optical platform by a tool, and the adjusting device sequentially performs high-precision adjustment on a plurality of optical components.

The plurality of optical components of the three-way light combining system include: first, second and

third light sources

11, 12 and 13, first, second and third

collimating lens groups

21, 22 and 23, first and second

dichroic mirrors

31 and 32 and focusing lens group 4 to form first, second and third optical path systems, and optical components are mounted, fixed and adjusted by corresponding mechanical components to form first optical module 10;

the first, second and third optical path systems are respectively composed of

light sources

11, 12 and 13 and collimating

lens groups

21, 22 and 23 at the front end of the optical path, the middle part of the optical path is subjected to optical path beam combination by reflection and transmission of first and second

dichroic mirrors

31 and 32, the combined light is converged at a position A through a focusing lens group 4 at the rear end of the optical path, and enters a light guide beam 40 through a receiving surface of the light guide beam 40 arranged at the position A to be subjected to light conduction; preferably, the

light sources

11, 21 and 31 are green, red and blue LEDs, respectively;

the plurality of optical components and the mechanical components are installed and fixed according to the selected one or more installation reference surfaces; the processing of the installation reference surface has high precision requirement;

specifically, the mechanical assembly corresponding to the plurality of optical assemblies comprises an adjusting mechanism, and the adjusting mechanism at least comprises an axial adjusting device for realizing axial displacement along the optical axis; furthermore, the adjusting mechanism also comprises a vertical axis adjusting device for realizing the displacement in the direction vertical to the optical axis; optionally, the adjusting mechanism further comprises an angle adjusting device for compensating the condition that the machining flatness or straightness of the mechanical assembly does not meet the requirement;

in particular, in order to assist the adjustment of the first optical module 10, a light beam focusing position a of the first optical module 10 is set as a reference position, a first receiving surface 5 is arranged at the position a, and the first receiving surface 5 has surface reflection or diffuse reflection and transmission characteristics; preferably, a circular ring a is arranged in the central region of the first receiving surface 5, preferably, the diameter of the circular ring a is equal to the light transmission diameter of the incident surface of the light guide beam 40, and further, a cross-shaped reticle is arranged in the circular ring a; optionally, the first receiving surface 5 is made of light-transmitting material such as optical glass or optical plastic;

the first receiving surface 5 is fixed by a corresponding mechanical assembly, preferably, the mechanical assembly comprises a positioning hole and a positioning pin, and high-precision installation based on a position A is realized, the position A is realized by the matched installation of a reference surface, the positioning hole and the positioning pin, and the reference surface and the positioning hole are ensured by high-precision machining; in particular, the reference position provides a reference for the relative position of the first optical module 10 and the adjustment device.

The adjusting device comprises a spectroscope 6, a first adjusting device 7 and a second adjusting device 8, wherein the spectroscope 6 and an optical axis form an included angle alpha, the adjusting device is divided into two paths through the transmission and surface reflection of the spectroscope 6, and the included angle alpha is preferably 45 degrees; the first adjusting device 7 at least comprises a collimator 71, a second receiving surface 72 positioned on the focal plane of the collimator 71, and a first camera device 73; the second adjusting device 8 at least comprises a second camera device 83;

the second receiving surface 72 is arranged perpendicular to the optical axis and has a transmission characteristic, particularly, the receiving surface is a reticle or is simply replaced by white paper, and preferably, a cross-shaped scale line and a scale are arranged in the center of the second receiving surface 72;

the adjusting device is fixed at a corresponding position by a corresponding mechanical assembly according to the arrangement and is fixed on the optical platform;

the first camera device 73 can clearly image the second receiving surface 72; the second image pickup device 83 can clearly image the first receiving surface 5, and preferably, the first and second

image pickup devices

73 and 83 have focusing or/and zooming functions;

preferably, the first and second

image pickup devices

73 and 83 are respectively connected to the display 9 for image display;

preferably, the output images of the first and

second cameras

73 and 83 may display a cross-hatched line located at the center of the image;

in particular, the beam splitter 6, the first adjusting device 7 and the second adjusting device 8 are subjected to first calibration before use, so that the optical axes of the first adjusting device 7 and the second adjusting device 8 are symmetrically arranged relative to the reflecting surface of the beam splitter 6, as shown in fig. 3;

preferably, the first calibration uses the collimated light source 20, the collimated light or the approximately collimated light emitted by the collimated light source 20 is transmitted into the first adjusting device 7 and reflected into the second adjusting device 8 through the beam splitter 6, and focusing light spots are formed on the first and second

image capturing devices

73 and 83, respectively, and the first calibration satisfies that the focusing light spots are located at the image centers of the first and second

image capturing devices

73 and 83, respectively.

Before installation and adjustment, the first receiving surface 5 is firstly installed and positioned at the position A of the first optical module 10, and the receiving surface 5 plays a role in reference positioning in the assembly; secondly, mounting first and second

dichroic mirrors

31 and 32, determining 45-degree angles of the first and second

dichroic mirrors

31 and 32 by using the first receiving surface 5 as a reference surface through an optical angle measuring system, optionally, the optical angle measuring system is a theodolite, the theodolite faces the dichroic mirrors along an optical axis, and the mounting angles of the dichroic mirrors are tested through the coincidence ratio of cross-shaped scribed lines of the theodolite and the cross-shaped scribed lines reflected by the first receiving surface 5; preferably, the installation angle tolerance alpha of the dichroic mirror is less than or equal to 1'; optionally, the optical angle measurement system may also be an internally focusing telescope; thirdly, the first, second and

third light sources

11, 12 and 13 and the first, second and third

collimating lens groups

21, 22 and 23 included in the first, second and third light paths are installed and pre-fixed before adjustment; then the optical module which finishes the assembly is fixed on the optical platform through the installation of the tool module and is arranged opposite to the adjusting device.

Before the adjustment, the first receiving surface 5 is used for carrying out second calibration, so that the relative position alignment of the first optical module 10 and the adjustment device is realized, and the position of the first optical module 10 is adjusted until the imaging position of the first receiving surface 5 through the first camera device 73 is superposed with the image cross center;

the optical components can be sequentially adjusted by adopting different adjusting sequences; preferably, the first optical path is adjusted first, and includes the first light source 11, the first collimating lens group 21 and the focusing lens group 4, and particularly, the first light source 11 or/and the first collimating lens group 21 is adjusted first, and then the focusing lens group 4 is adjusted second; then, adjusting C for the second light source 12 or/and the second collimating lens group 22 of the second light path; completing the third light path installation and adjustment D in the same way; before the adjustment B is carried out, the focusing lens group 4 is fixed on the first optical module 10, and the light sources of the related light paths are respectively turned on and the light sources of other light paths are kept turned off in the steps of A-D; in each step of installation and adjustment, the installation and adjustment are guided according to the imaging light spots obtained by the

camera modules

73 and 83;

the camera module 1 guides the installation and debugging A, and the camera module 2 guides the installation and debugging B, C, D;

and (2) adjusting A, adjusting each optical component through an adjusting mechanism of the mechanical component to achieve good collimation of a light path, wherein the evaluation standard is that an imaging light spot obtained by the first camera device 73 meets the condition 1:

1) the imaging light spot reaches the minimum clearest state, and the clearest state is defined as the light spot edge with a sharp boundary;

2) the center of the imaging light spot coincides with the center of the cross-shaped scribed line on the second receiving surface 72;

adjustment B, C and D, the adjustment of each optical component is realized through the adjusting mechanism, so that good collimation of the light path is achieved, and the evaluation standard is that the imaging light spot obtained by the second camera device 83 meets the condition 2:

2) the center of the imaging light spot is superposed with the center of the cross-shaped scribed line on the first receiving surface 5;

the good focusing of each path of light path on the light source and the optimal superposition of three paths of light spots are realized through the guiding action of the imaging light spots; preferably, the sizes of the focused light spots of the first, second and third paths on the receiving surface 5 are not deviated by more than 3%.

The adjustment of the first optical module 10 of the endoscope is completed according to the above-mentioned process, preferably, each optical module is fixed by a screw after the adjustment is completed, and optionally, glue with a fixing function, such as thread fastening glue, silica gel or UV glue, is used to reinforce or/and buffer the installation and fixing process.

It should be noted that the adjustment sequence is not unique, and if the first, second, and third collimated

light sources

11, 12, 13 and/or the

collimating lens groups

21, 22, 23 may be adjusted first, the standard is that the imaging light spot obtained by the first camera device 73 satisfies the condition 1; and then, the focusing lens group 4 is adjusted, and finally, the second collimating lens group 22 and the third collimating lens group 23 are axially adjusted to perform compensation adjustment, wherein the standard is that an imaging light spot obtained by the second camera device 83 meets the condition 2.

When the optical module of the endoscope is a four-way light combining system, as shown in fig. 3, 4 and 5, the second optical module 30 of the endoscope light source is highly precisely adjusted, and the second optical module 30 includes a plurality of optical components and corresponding mechanical components for installation, fixation and adjustment. As shown in fig. 4, the second optical module 30 is a four-way light combining system, and based on the three-way light combining system, a third dichroic mirror 33 is added and a fourth optical path system is added.

The plurality of optical components of the four-way light combining system comprise: first, second, third, and fourth

light sources

11, 12, 13, and 14, first, second, third, and fourth

collimating lens groups

21, 22, 23, and 24, first, second, and third

dichroic mirrors

31, 32, and 33, and focusing lens group 4, and constitute first, second, third, and fourth optical path systems, and the optical components are mounted, fixed, and adjusted by corresponding mechanical components, constituting a second optical module 30;

the first, second, third and fourth light path systems respectively consist of a first, second, third and fourth

light source

11, 12, 13, 14 and a

collimating lens group

21, 22, 23, 24 at the front end of the light path, the middle part of the light path is subjected to light path beam combination by a first, second and third

dichroic mirrors

31, 32 and 33 through transmission and reflection, the combined light is converged at a position A through a focusing lens group 4 at the rear end of the light path, and enters the light guide beam 40 through a light guide beam 40 receiving surface arranged at the position A to carry out light conduction; preferably, the

light sources

11, 21, 31 and 41 are green, red, blue LEDs and UV LEDs, respectively;

in particular, to assist the adjustment of the second optical module 30, the output light focusing position a of the second optical module 30 is set as a reference position, a first receiving surface 5 is provided at the position a, and the first receiving surface 5 has surface reflection or diffuse reflection and transmission characteristics; preferably, a circular ring a is arranged in the central region of the first receiving surface 5, preferably, the diameter of the circular ring a is equal to the light transmission diameter of the incident surface of the light guide beam 40, and further, a cross-shaped reticle is arranged in the circular ring a; optionally, the first receiving surface 5 is made of a light-transmitting material such as glass or plastic;

Before the installation and adjustment, the first receiving surface 5 is firstly installed and positioned at the position A of the second optical module 30, and the receiving surface 5 plays a role in reference positioning in the assembly; next, first and second

dichroic mirrors

31 and 32 are mounted, and the 45 ° angle of first and second

dichroic mirrors

31 and 32 is determined by an optical angle measuring system using first receiving surface 5 as a reference surface; likewise, the 45 ° angle of the third dichroic mirror 33 is detected and mounted; preferably, the mounting angle tolerance α of first, second, and third

dichroic mirrors

31, 32, and 33 is ≦ 1'; thirdly, the

light sources

11, 12, 13 and 14 and the

collimating lens groups

21, 22, 23 and 24 contained in the first, second, third and fourth light paths are installed and pre-fixed before adjustment; and then the second optical module 30 which is assembled as described above is fixed on the optical platform through the tooling module and is arranged opposite to the adjusting device.

Before the adjustment, the first receiving surface 5 is used for carrying out second calibration, so that the relative position alignment of the first optical module 10 and the adjustment device is realized, and the position of the second optical module 30 is adjusted until the imaging position of the first receiving surface 5 through the camera device 73 is superposed with the image cross center;

the optical components can be sequentially adjusted by adopting different adjusting sequences; preferably, the first optical path is adjusted first, and includes the first light source 11, the first collimating lens group 21 and the focusing lens group 4, and particularly, the first light source 11 or/and the first collimating lens group 21 is adjusted first, and then the focusing lens group 4 is adjusted second; then, adjusting C for the second light source 12 or/and the second collimating lens group 22 of the second light path; completing the third optical path adjustment D and the fourth optical path adjustment E in the same way; before the adjustment B is performed, the focusing lens assembly 4 is fixed to the second optical module 30; b, adjusting steps A to E, respectively turning on the light sources of the related light paths, and keeping the light sources of other light paths off; in each step of installation and adjustment, the installation and adjustment are guided according to the imaging light spots obtained by the

camera modules

73 and 83;

the camera module 1 guides the installation and debugging A, and the camera module 2 guides the installation and debugging B, C, D and E;

and the adjustment A realizes the adjustment of all the optical components through an adjusting mechanism to achieve good collimation of a light path, and the evaluation standard is that an imaging light spot obtained by the first camera device 73 meets the following requirements:

1) whether the imaging light spot reaches the minimum clearest state or not is defined as the light spot edge with a sharp boundary;

adjustment B, C, D and E, the adjustment of each optical component is realized through the adjusting mechanism, so as to achieve good collimation of the light path, and the evaluation standard is that the imaging light spot obtained by the second camera device 83 meets the following requirements:

the good focusing of each path of light path on the light source and the optimal superposition of four paths of light spots are realized through the guiding action of the imaging light spots; preferably, the first, second, third and fourth optical paths have a focused spot size on the receiving surface 5 that deviates by no more than 3%.

The adjustment of the second optical module of the endoscope is completed according to the above process, preferably, each optical module is fixed by a screw after the adjustment is completed, and optionally, glue with a fixing function, such as thread fastening glue, silica gel or UV glue, is used for reinforcing or/and buffering the installation and fixing process.

With reference to fig. 1 and 6, a first optical module 10 of an endoscope light source is modified based on the embodiment shown in fig. 1 to 3, wherein the first optical module is composed of a first adjusting device 7, and the first adjusting device 7 is optimized to replace the first and second adjusting devices 7 and 8; the first adjusting device 7 at least comprises a collimator 71, a second receiving surface 72 positioned on the focal plane of the collimator 71, and a first camera device 73; the first image pickup device 73 can realize two imaging states a and B by a zoom or/and focus function, and satisfies condition 3:

1) the imaging state A is in a close focus, and clear imaging of the second receiving surface 72 can be realized;

2) the imaging state B is located in far focus and can realize clear imaging of the first receiving surface 5 through the collimator light path system;

a first image pickup device 73 that can be quickly switched between imaging states a and B;

the imaging state B of the first camera means 73, functionally replacing the second adjusting means 8; meanwhile, the adjustment device does not need to perform the first calibration, as shown in fig. 3;

the device for adjusting the optical path of the endoscope light source can realize high-precision adjustment of the optical paths of the first optical module 10 and the second optical module 30.

The imaging state B of the first imaging device 73 is used instead of the second adjusting device 8, and high-precision adjustment of the three-way light combining system and the four-way light combining system is completed in the same manner.

On the basis of the embodiments corresponding to fig. 2 and 6, the invention further provides another adjusting device for the endoscope light source light path, so as to realize high-precision automatic or semi-automatic adjustment of the optical module, ensure the stability of the adjustment and improve the adjustment efficiency of batch products

Referring to fig. 1, 2 and 7, the first optical module 10 is a three-way light-combining system; the plurality of optical components of the three-way light combining system include: first, second and third

light sources

11, 12 and 13, first, second and third

collimating lens groups

21, 22 and 23, first and second

dichroic mirrors

the plurality of optical components are wholly or partially connected with an automatic assembly component 90, and the automatic assembly component 90 is composed of an operation group 91 and a control group 92 connected with the operation group, the operation group is connected with the plurality of optical components, and the operation group is used for driving the plurality of optical components to perform axial adjustment, vertical axis adjustment or angle adjustment.

Based on the embodiment shown in fig. 2, the control group 92 is respectively connected to the operation group 91, the first camera device and the second camera device, and the control group is configured to issue a control command to the operation group according to the images of the first camera device and the second camera device, so that the operation group drives the plurality of optical assemblies to perform adjustment.

Based on the embodiment corresponding to fig. 6, the control group 92 is connected to the first camera 73 and communicates with the first camera 73, see fig. 7.

Optionally, the first, second, and third

collimating lens groups

21, 22, and 23 and the focusing lens group 4 are attached to an automated assembly 90.

A built-in spot evaluation system is controlled 92 with imaging spot conditions 1 and 2 of the corresponding embodiments of fig. 1-3 as evaluation criteria.

The setup apparatus shown in fig. 6 is used to compare whether or not imaging spots obtained from the imaging states a and B of the first imaging device 73 in the steps of setups a to D satisfy the condition 1 or the condition 2, as shown in fig. 7.

The setup device shown in fig. 2 is used to compare whether or not the imaging spots obtained by the first imaging device 73 and the second imaging device 83 satisfy the condition 1 or the condition 2 in each of the steps of the setups a to D.

Preferably, the control group 92, in which the spot evaluation system is built, evaluates the focused spot sizes of the first, second and third paths on the receiving surface 5 with a deviation degree of not more than 3%.

And the good focusing of each path of light path on the light source and the optimal superposition of three paths of light spots are realized through the guiding action of the imaging light spots.

The automatic assembly component 90 is connected to a plurality of optical components wholly or partially for automatic or semi-automatic assembly, so that the stability of assembly and debugging is guaranteed, and the assembly and debugging efficiency of products in batches is improved.

In summary, according to the installation and adjustment device of the endoscope light source light path in the embodiment of the invention, a plurality of optical components can be automatically or semi-automatically installed and adjusted, high precision, stability and automatic installation and adjustment of the endoscope light source light path are realized, and the installation and adjustment device is simple in structure and convenient to install.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The meaning of "plurality" is two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two components can be directly connected with each other or indirectly connected with each other through an intermediate medium, and can be communicated with each other in the compartment or the interaction relation of the two components. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjusting device for an endoscope light source optical path, wherein the endoscope light source optical module is provided with a plurality of optical components to be adjusted, the adjusting device comprises:

a first receiving surface mounted and positioned at a beam focusing position A of the optical module, the first receiving surface having surface transmission characteristics;

a first assembly and adjustment device, the first assembly and adjustment device is fixed on the optical platform, the first assembly and adjustment device includes: a collimator, a second receiving surface located on the focal plane of the collimator, and a first image pickup device,

the optical path of the collimator is connected with the optical module;

the second receiving surface is arranged perpendicular to the optical axis and has surface transmission characteristics;

the first camera device can realize clear imaging of the second receiving surface through zooming or/and focusing functions, wherein the imaging state comprises near-focus imaging and far-focus imaging;

and the display is electrically connected with the first camera device and used for displaying the image of the first camera device.

2. The apparatus for conditioning an endoscope light source light path according to claim 1, wherein said first receiving surface further has surface reflection or diffuse reflection characteristics, said apparatus further comprising: a beam splitter and a second adjustment device, wherein,

the beam splitter is arranged at a first preset included angle alpha with the optical axis, has the transmission and surface reflection characteristics, and is used for transmitting the light beam transmitted by the first receiving surface into the first adjusting device and reflecting the light beam into the second adjusting device;

the second adjusting device, the first adjusting device and the optical axis are symmetrically arranged relative to the reflecting surface of the spectroscope, the second adjusting device comprises a second camera device, the second camera device is electrically connected with the display, and the second camera device can realize clear imaging of the first receiving surface through zooming or/and focusing functions;

the display is also used for displaying the imaging of the second camera device.

3. The apparatus as claimed in claim 2, wherein the first predetermined angle α is 45 °.

4. The apparatus for adjusting an endoscope light source optical path according to claim 2, further comprising:

the operation group is respectively connected with the plurality of optical components of the optical module and is used for driving the light source module to carry out axial adjustment, vertical axis adjustment or angle adjustment;

the control group is respectively connected with the operation group, the first camera device and the second camera device, and is used for sending a control instruction to the operation group according to the light spot imaging states of the first camera device and the second camera device so that the operation group drives the optical assembly to adjust.

5. The apparatus as claimed in claim 1, wherein the optical module is connected to a receiving surface of a fiber optic light guide bundle at a focusing position A for light transmission through the light guide bundle.

6. The apparatus of claim 1, wherein the second receiving surface is centrally provided with cross-shaped score lines and scales.

7. The apparatus as claimed in claim 5, wherein the first receiving surface is provided with a circular ring in a central region, and the diameter of the circular ring is equal to the diameter of the light beam incident surface.

8. The apparatus as claimed in claim 1, wherein the first receiving surface is made of optical glass or optical plastic.

9. The apparatus as claimed in claim 1, wherein the second receiving surface is made of optical glass, optical plastic or white paper.

10. The apparatus according to any one of claims 1 to 9, wherein the optical module is a three-way combining optical system or a four-way combining optical system.