CN113758417A - Endoscopic deep hole inner surface multiplication imaging device - Google Patents
Endoscopic deep hole inner surface multiplication imaging device Download PDFInfo
- Publication number
- CN113758417A CN113758417A CN202110952431.8A CN202110952431A CN113758417A CN 113758417 A CN113758417 A CN 113758417A CN 202110952431 A CN202110952431 A CN 202110952431A CN 113758417 A CN113758417 A CN 113758417A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- laser
- deep hole
- aspheric lens
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 59
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- 208000008918 voyeurism Diseases 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000010977 jade Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2461—Illumination
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
- G02B23/2484—Arrangements in relation to a camera or imaging device
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Endoscopes (AREA)
Abstract
The invention belongs to the technical field of geometric quantity precision measurement based on machine vision, and provides an endoscopic deep hole inner surface multiplication imaging device. The endoscopic deep hole inner surface multiplication imaging device comprises an imaging device shell, a coaxial circular ring-shaped structured light incidence lens group, a measuring area triangular imaging lens group, a parallel light emergent lens group, an optical amplification lens group, a ring-shaped laser and an industrial camera. Through designing the optimal light path, arrange inside mirror group, construct peeping type multiplication imaging device, carry out high accuracy formation of image when enlargeing the multiplication with the inside small characteristic of deep hole, solved the problem that deep hole internal surface appearance is difficult to obtain, this device has high resolution formation of image moreover, the downthehole appearance is convenient for observe, the device is light easily carries, easily dismantles advantages such as clean, the built-in lens of being convenient for change, satisfies the demand of deep hole internal surface multiplication imaging operation.
Description
Technical Field
The invention relates to the technical field of geometric quantity precision measurement based on machine vision, in particular to an endoscopic deep hole inner surface multiplication imaging device.
Background
In recent years, a deep hole measurement technology with high precision, high efficiency and high reliability has become an urgent need for manufacturing major equipment in national defense and military industry, energy power, aerospace and the like in China. In 2015, with the overall development of marketization and globalization, new challenges and new problems of variety diversity, small-batch production, continuous application of new materials, higher and higher product precision requirements in the deep hole machining industry are clarified, and higher requirements are provided for the deep hole measurement technology. The deep hole processing technology has the characteristics of multiple disciplines, complex processing environment, high processing difficulty and high processing cost, and plays a significant role in the equipment manufacturing industry. Therefore, the deep hole measurement research is carried out deeply and comprehensively, and the deep hole measurement research has strategic effects on the whole mechanical industry, the whole entity economy and the nation.
The method has important functions and application values in improving the manufacturing precision and reliability of the core parts of the heavy equipment by the deep hole measurement technology. In recent years, the research on the measuring technology of the geometric quantity of the deep hole is highly emphasized by the famous colleges and research and development institutions at home and abroad. The on-line precise measuring device for the inner diameter of the deep hole is developed by Dingzhenlong, and the measuring device is arranged on an automatic production line and consists of a prediction platform, a conversion mechanism and a measuring platform. The device has low detection precision and improved structural stability, and is easily influenced by external environment to reduce reliability. A round structured light inner wall measuring system built by Wakayama project group of Japan Saitama Jade medical university successfully realizes the inner wall defect detection of various complex deep holes. The measuring device consists of a PSD, a lens, a transparent rotating plane mirror, a reflecting mirror and laser, and has the problems of complex structure and low efficiency.
In summary, the existing optical measurement methods have certain limitations, the internal space of the deep hole is closed and narrow, and a common measurement instrument and a light source cannot extend a measurement device into the hole to obtain an internal morphology feature image due to the limitation of the geometric dimension of the deep hole. Although the low-resolution endoscopic imaging instrument can be inserted into a hole to obtain an image in the deep hole, the low-resolution endoscopic imaging instrument is affected by the distortion of the camera resolution and the lens, and has the problems of poor imaging quality, fuzzy outline characteristic edges and difficulty in ensuring the characteristic extraction precision. Therefore, the optical path design for deep-hole endoscopic multiplication imaging is carried out, and a device for obtaining a clear image of the internal appearance characteristics of the deep hole is designed, so that the device is the first problem to be solved for realizing deep-hole internal appearance imaging and internal parameter measurement.
The method is important in improving the manufacturing accuracy and reliability of the core parts of the heavy equipment and application value of the deep hole measurement technology. In recent years, the research on the measuring technology of the deep hole geometric quantity is highly emphasized by the famous colleges and research and development institutions at home and abroad. The measuring device is arranged on an automatic production line and consists of a prediction platform, a conversion mechanism and a measuring platform. The device has low detection precision and improved structural stability, and is easily influenced by external environment to reduce reliability. A round structured light inner wall measuring system built by Wakayama project group of Japan Saitama Jade medical university successfully realizes the inner wall defect detection of various complex deep holes. The measuring device consists of a PSD, a lens, a transparent rotating plane mirror, a reflecting mirror and laser, and has the problems of complex structure and low efficiency.
In summary, the existing optical measurement methods have certain limitations, the internal space of the deep hole is closed and narrow, and a common measurement instrument and a light source cannot extend a measurement device into the hole to obtain an internal morphology feature image due to the limitation of the geometric dimension of the deep hole. Although the low-resolution endoscopic imaging instrument can be inserted into a hole to obtain an image in the deep hole, the low-resolution endoscopic imaging instrument is affected by the resolution of a camera and distortion of a lens, and has the problems of poor imaging quality, fuzzy outline characteristic edges and difficulty in ensuring the characteristic extraction precision. Therefore, the optical path design for deep-hole endoscopic multiplication imaging is carried out, and a device for obtaining a clear image of the internal appearance characteristics of the deep hole is designed, so that the device is the first problem to be solved for realizing the internal appearance imaging of the deep hole and measuring the internal parameters of the deep hole.
Disclosure of Invention
The invention aims to provide an endoscopic deep hole inner surface multiplication imaging device, aiming at the problems that the deep hole inner surface appearance image cannot be directly obtained or the imaging quality is poor and the resolution ratio is low, the endoscopic imaging device is constructed by designing an optical duplication-based deep hole inner surface appearance endoscopic multiplication imaging optical path, so that the tiny characteristics in a deep hole are amplified and multiplied, the observation is convenient, the high-resolution imaging of the deep hole inner surface appearance characteristics is realized, the measurement precision is further improved, and the problem of accuracy in the deep hole inner surface appearance characteristic imaging process is solved.
In order to achieve the purpose, the invention provides the following technical scheme: an endoscopic deep hole inner surface multiplication imaging device comprises an imaging device shell, a coaxial circular ring-shaped structured light incidence lens group, a measuring area triangular imaging lens group, a parallel light emergent lens group, an optical amplification lens group, a ring-shaped laser 15 and an industrial camera 17; the ring laser 15 is used for emitting light to the coaxial circular ring-shaped structured light incidence mirror group; the industrial camera 17 is used for receiving light rays from the optical magnifying lens group through the lens 16;
the coaxial circular ring-shaped structured light incidence lens group comprises a short connecting sleeve 12, a fixed sleeve 13 and a laser collimation aspheric lens b 14; a circular through hole is formed in the center of the left side of the fixing sleeve 13, and a convex structure is processed at the circular through hole and used for fixing the laser collimation aspheric lens b 14; the fixed sleeve 13 is in threaded connection with one end of the short connecting sleeve 12;
the parallel light outgoing mirror group comprises a total reflection prism sleeve 9, a total reflection prism 10 and a total reflection prism transparent fixing plate 11; the end part of the total reflection prism transparent fixing plate 11 is respectively in threaded connection with the other end of the short connecting sleeve 12 and the opening end of the total reflection prism sleeve 9; the total reflection prism sleeve 9 is of a sleeve structure with an opening at the right side, and an opening is formed in the center of the left side of the total reflection prism sleeve; the right part of the total reflection prism sleeve 9 is turned downwards, an opening structure is formed between the right part and the total reflection prism transparent fixing plate 11, and external threads are arranged; the total reflection prism 10 is adhered to the geometric center of the transparent fixing plate 11, and changes the direction of the emergent parallel light through mirror reflection;
the optical magnifying lens group comprises a conical sleeve 1, a laser collimation aspheric lens a2 and a laser collimation aspheric lens c 3; the end part of the conical sleeve 1 is provided with an internal thread, the external thread of the opening structure of the parallel light emergent lens group is matched with the internal thread of the conical end of the conical sleeve 1, and the laser collimation aspheric lens c3 is fixed in the internal thread; the laser collimation aspheric lens a2 is screwed into the conical sleeve 1 through internal threads, and the laser collimation aspheric lens a2 is further fixed by utilizing a conical structure; the multiplied imaging is realized by adjusting the distance between the laser collimating aspheric lens a2 and the laser collimating aspheric lens c 3;
the measuring area triangular imaging lens group comprises a measuring area sleeve 4, a triangular reflector fixing plate 5, a triangular reflecting prism 6, a collimating laser mirror 7 and a long connecting sleeve 8; one end of the long connecting sleeve 8 is in threaded fit with the opening on the left side of the total reflection prism sleeve 9, and the other end of the long connecting sleeve is in threaded connection with the measuring area sleeve 4; the measuring area sleeve 4 is transparent; the open end of the measuring region sleeve 4 is provided with internal threads and a bulge for fixing the triangular reflecting prism 6; the triangular reflector fixing plate 5 is screwed into the measuring area sleeve 4; a triangular reflecting prism 6 is bonded at the left geometric center of the triangular reflecting mirror fixing plate 5 and is fixed through a bulge on the measuring area sleeve 4; the right geometric center of the measuring area sleeve 4 is adhered with a collimation laser mirror 7.
The invention has the advantages that: according to the endoscopic deep hole inner surface multiplication imaging device provided by the invention, the endoscopic multiplication imaging device is constructed by designing an optimal light path, arranging the inner lens group, amplifying and multiplying the tiny features in the deep hole and simultaneously carrying out high-precision imaging, so that the problem that the inner surface appearance of the deep hole is difficult to obtain is solved. The endoscopic deep hole inner surface multiplication imaging device has the advantages of high-resolution imaging, convenience in observing the inner appearance of a hole, portability, easiness in carrying, easiness in dismounting and cleaning, convenience in replacing a built-in lens and the like, and meets the requirement of deep hole inner surface multiplication imaging operation.
Drawings
Fig. 1 is an overall effect diagram of an endoscopic deep hole internal surface multiplication imaging device.
Fig. 2 is a schematic diagram of the optical path distribution of an endoscopic deep-hole internal surface multiplication imaging device.
Fig. 3 is a schematic structural diagram of an endoscopic deep-hole internal surface multiplication imaging device.
Fig. 4 is an enlarged view of the area a in fig. 1.
Fig. 5 is an enlarged view of the region B in fig. 1.
Fig. 6 is an enlarged view of the region C in fig. 1.
Fig. 7 is an enlarged view of region D in fig. 1.
In the figure: 1 conical sleeve, 2 laser collimation aspheric lens a, 3 laser collimation aspheric lens c, 4 measuring zone sleeves, 5 triangular reflector fixing plates, 6 triangular reflection prisms, 7 collimation laser mirrors, 8 long connecting sleeves, 9 total reflection prism sleeves, 10 total reflection prisms, 11 transparent fixing plates, 12 short connecting sleeves, 13 fixing sleeves, 14 laser collimation aspheric lens b, 15 annular lasers, 16 lenses and 17 industrial cameras.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the endoscopic deep hole inner surface multiplication imaging device of the present invention is further described in detail. The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment.
In the several figures of the drawings, identical or equivalent components (elements) are referenced with the same reference numerals.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, the terms "large", "medium", "small", etc. are used merely to facilitate describing the dimensional differences of the same type of lenses in the invention, and the sequential relationship of the indications "first", "second", etc. is used merely to facilitate describing the invention and to simplify the description and therefore should not be construed as limiting the invention.
Fig. 1 is an overall effect diagram of an endoscopic deep hole internal surface multiplication imaging device provided in an embodiment of the present invention. Fig. 2 is a schematic diagram of the optical path distribution. Fig. 3 is a schematic structural diagram of an endoscopic deep hole internal surface multiplication imaging device provided in an embodiment of the present invention. Referring to fig. 1, in the present embodiment, the lower part of fig. 1 is defined as the lower end of the measuring apparatus, the upper part of fig. 1 is defined as the upper end of the apparatus, and the position of the ring laser 15 of fig. 1 is defined as the right end of the apparatus. In this embodiment, the endoscopic deep hole inner surface multiplication imaging device includes a tapered sleeve 1, a laser collimation aspheric lens a2, a laser collimation aspheric lens c3, a measurement zone sleeve 4, a triangular reflector fixing plate 5, a triangular reflector prism 6, a collimation laser mirror 7, a long connecting sleeve 8, a total reflection prism sleeve 9, a total reflection prism 10, a transparent fixing plate 11, a short connecting sleeve 12, a fixing sleeve 13, a laser collimation aspheric lens b14, a ring laser 15, a lens 16 and an industrial camera 17.
The housing part of the imaging device is composed of a conical sleeve 1, a measuring zone sleeve 4, a long connecting sleeve 8, a total reflection prism sleeve 9, a short connecting sleeve 12 and a fixing sleeve 13.
FIG. 4 is an enlarged view of area A of the apparatus of the present invention in an embodiment of the present invention. Referring to fig. 1, 3 and 4, in the present embodiment, the a region represents a triangulation optical group measurement portion. Wherein the measuring region sleeve 4 and the connecting sleeve 8 are connected through screw threads, the inner wall of the measuring region sleeve 4 is provided with screw threads and a convex part for fixing the position of the prism, and the triangular reflector fixing plate 5 is screwed into the measuring region sleeve 4 through screw threads. Meanwhile, the triangular reflecting prism 6 is adhered to the center of the triangular reflecting mirror fixing plate 5, and the collimation laser mirror 7 is adhered to the geometric center of the inner wall of the right side of the measuring area sleeve 4. In order to allow light to pass through smoothly, the wall of the measuring-area sleeve 4 is completely transparent.
FIG. 5 is an enlarged view of area B of the apparatus of the present invention in an embodiment of the present invention. Referring to fig. 1, 3 and 5, in the present embodiment, the B region represents a parallel light exit mirror group portion. Wherein the transparent fixing plate 11 is screwed with the total reflection prism sleeve 9 and the short connecting sleeve 12. The total reflection prism 10 is adhered to the geometric center of the transparent fixing plate 11 and has a size smaller than the diameter of the light ring emitted from the ring laser 15, and functions to change the direction of the parallel light emitted from the measuring area by specular reflection.
FIG. 6 is an enlarged view of region C of the apparatus of the present invention in an embodiment of the present invention. Referring to fig. 1, 3 and 6, in the present embodiment, the region C represents a coaxial circular ring-shaped structured light incidence mirror group portion. Wherein the inner wall of the short connecting sleeve 12 is provided with screw threads and is connected with the fixed sleeve 13 through the screw threads. The lens 14 is screwed into a left circular through hole of the fixing sleeve 13, and there is a protrusion on the left side of the fixing sleeve 13 for fixing the position of the lens 14.
FIG. 7 is an enlarged view of region D of the apparatus of the present invention in an embodiment of the present invention. Referring to fig. 1, 3 and 7, in the present embodiment, a region D represents an optical magnifying lens group portion. The conical sleeve 1 and the total reflection prism sleeve 9 are connected by a screw thread, while the inner wall of the conical amplification sleeve 1 and the inner wall of the convex portion of the total reflection prism sleeve 9 are both threaded. The laser collimating aspheric lens c3 is screwed into the inside of the convex part of the total reflection prism sleeve 9, which fixes the laser collimating aspheric lens c3 in place. The laser collimating aspheric lens a2 is screwed into the tapered sleeve 1, and the tapered structure of the tapered sleeve 1 further fixes the laser collimating aspheric lens a 2. The distance between the laser collimation aspheric lens a2 and the laser collimation aspheric lens c3 is adjusted, and then multiplied imaging is achieved.
Examples
The endoscopic deep hole inner surface multiplication imaging device in the embodiment of the invention shown in fig. 1 comprises a conical sleeve 1, a laser collimation aspheric lens a2, a laser collimation aspheric lens c3, a measurement zone sleeve 4, a triangular reflector fixing plate 5, a triangular reflector prism 6, a collimation laser mirror 7, a long connecting sleeve 8, a total reflection prism sleeve 9, a total reflection prism 10, a transparent fixing plate 11, a short connecting sleeve 12, a fixing sleeve 13, a laser collimation aspheric lens b14, a ring laser 15, a lens 16 and an industrial camera 17.
The working process of the endoscopic deep hole inner surface multiplication imaging device in the embodiment is as follows: the measuring area sleeve 4 and the long connecting sleeve 8 are stretched into a deep hole to be measured, an imaging device is fixed, and then the annular laser 15 is opened and aligned to the laser collimation aspheric lens b14 to emit annular laser; the divergent annular laser is refracted by the laser collimating aspheric lens b14 and then becomes parallel light; parallel light rays sequentially pass through the transparent fixing plate 11 of the total reflection prism and the transparent plate at the bottom of the sleeve 4 of the measuring area, and are reflected on the surface of the triangular reflection prism 6; the reflected light penetrates through the transparent cylinder wall of the sleeve 4 in the measuring area and is reflected on the inner wall of the measured hole again; then the reflected light is refracted on the surface of the collimation laser mirror 7 to be parallel light; the refracted light rays are reflected at 90 degrees on the surface of the total reflection prism 10; the reflected light is refracted through the laser collimating aspheric lens c3, the refracted light is refracted for the second time through the laser collimating aspheric lens a2, and the light after the second refraction is changed into parallel light and is emitted out of the laser collimating aspheric lens a 2; after being received by the lens 16, the received image is transmitted to a computer through the industrial camera 17, and then the multiplication imaging operation of the inner surface of the deep hole is completed.
The structure of the invention has the advantages of high resolution imaging, convenient observation of the shape in the hole, portable and portable integral structure, easy disassembly and cleaning, convenient replacement of the built-in lens and the like, and simultaneously, the endoscopic multiplication imaging structure can meet the requirement of the measurement work of the inner surface in the deep hole.
The above description of exemplary embodiments has been presented only to illustrate the technical solution of the invention and is not intended to be exhaustive or to limit the invention to the precise form described. Obviously, many modifications and variations are possible in light of the above teaching to those skilled in the art. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to understand, implement and utilize the various exemplary embodiments of the invention and various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the following claims and their equivalents.
Claims (3)
1. An endoscopic deep hole inner surface multiplication imaging device is characterized by comprising an imaging device shell, a coaxial circular ring-shaped structured light incidence lens group, a measuring area triangular imaging lens group, a parallel light emergent lens group, an optical amplification lens group, a ring-shaped laser (15) and an industrial camera (17); the annular laser (15) is used for emitting light to the coaxial circular annular structured light incidence mirror group; the industrial camera (17) is used for receiving light rays from the optical magnifying lens group through the lens (16);
the coaxial circular ring-shaped structured light incidence lens group comprises a short connecting sleeve (12), a fixed sleeve (13) and a laser collimation aspheric lens b (14); a circular through hole is formed in the center of the left side of the fixing sleeve (13), and a protruding structure is processed in the circular through hole and used for fixing the laser collimation aspheric lens b (14); the fixed sleeve (13) is in threaded connection with one end of the short connecting sleeve (12);
the parallel light outgoing mirror group comprises a total reflection prism sleeve (9), a total reflection prism (10) and a transparent fixing plate (11); the end part of the transparent fixed plate (11) is respectively in threaded connection with the other end of the short connecting sleeve (12) and the opening end of the total reflection prism sleeve (9); the total reflection prism sleeve (9) is of a sleeve structure with an opening at the right side, and the center of the left side of the total reflection prism sleeve is provided with an opening; the right part of the total reflection prism sleeve (9) is turned downwards, an opening structure is formed between the right part and the transparent fixing plate (11), and external threads are arranged; the total reflection prism (10) is adhered to the geometric center of the transparent fixed plate (11) and changes the direction of emergent parallel light through mirror reflection;
the optical magnifying lens group comprises a conical sleeve (1), a laser collimation aspheric lens a (2) and a laser collimation aspheric lens c (3); an internal thread is arranged at the end part of the conical sleeve (1), an external thread of an opening structure of the parallel light emergent lens group is matched with the internal thread at the conical end of the conical sleeve (1), and the laser collimation aspheric lens c (3) is fixed in the internal thread; the laser collimation aspheric lens a (2) is screwed into the conical sleeve (1) through internal threads, and the laser collimation aspheric lens a (2) is further fixed by utilizing a conical structure; the distance between the laser collimation aspheric lens a (2) and the laser collimation aspheric lens c (3) is adjusted to realize multiplication imaging;
the measuring area triangular imaging lens group comprises a measuring area sleeve (4), a triangular reflector fixing plate (5), a triangular reflecting prism (6), a collimating laser mirror (7) and a long connecting sleeve (8); one end of the long connecting sleeve (8) is in threaded fit with the opening on the left side of the total reflection prism sleeve (9), and the other end of the long connecting sleeve is in threaded connection with the measuring area sleeve (4); the measuring area sleeve (4) is transparent; the open end of the measuring region sleeve (4) is provided with internal threads and a bulge for fixing the triangular reflecting prism (6); the triangular reflector fixing plate (5) is screwed into the measuring area sleeve (4); a triangular reflecting prism (6) is bonded at the geometric center position on the left side of the triangular reflecting mirror fixing plate (5) and is fixed through a bulge on the measuring area sleeve (4); the right geometric center of the measuring area sleeve (4) is adhered with a collimation laser mirror (7).
2. The endoscopic deep hole internal surface multiplication imaging device according to claim 1, wherein the sizes of the laser collimating aspheric lens a (2), the laser collimating aspheric lens b (14) and the laser collimating aspheric lens c (3) decrease sequentially.
3. The endoscopic deep hole internal surface multiplication imaging device according to claim 1 or 2, wherein the laser collimating aspheric lens a (2), the laser collimating aspheric lens c (3), the triangular reflecting prism (6), the collimating laser mirror (7), the total reflection prism (10) and the laser collimating aspheric lens b (14) are all nonstandard components and are custom-designed to cooperate with the endoscopic deep hole internal surface multiplication imaging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952431.8A CN113758417B (en) | 2021-08-19 | 2021-08-19 | Endoscopic deep hole inner surface multiplication imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952431.8A CN113758417B (en) | 2021-08-19 | 2021-08-19 | Endoscopic deep hole inner surface multiplication imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113758417A true CN113758417A (en) | 2021-12-07 |
| CN113758417B CN113758417B (en) | 2024-02-23 |
Family
ID=78790367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110952431.8A Active CN113758417B (en) | 2021-08-19 | 2021-08-19 | Endoscopic deep hole inner surface multiplication imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113758417B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264249A (en) * | 2021-12-14 | 2022-04-01 | 中国石油大学(华东) | Three-dimensional measuring system and method for deep hole narrow inner cavity |
| CN115289979A (en) * | 2022-08-18 | 2022-11-04 | 天津大学 | Miniature laser displacement sensor based on structured light vision |
| CN117433421A (en) * | 2023-12-20 | 2024-01-23 | 中北大学 | Multi-geometric-quantity deep hole measuring instrument based on microscope and measuring method thereof |
| CN117804357A (en) * | 2024-03-01 | 2024-04-02 | 中北大学 | Deep hole detection device and detection method based on laser reflection |
| CN117804357B (en) * | 2024-03-01 | 2024-05-14 | 中北大学 | Deep hole detection device and detection method based on laser reflection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719192A (en) * | 2005-06-23 | 2006-01-11 | 哈尔滨工业大学 | Bidimension photoelectric self collimating device based on optical length multiplication compensation method and its measuring method |
| CN1995908A (en) * | 2006-12-28 | 2007-07-11 | 厦门大学 | Single-photodetector confocal laser triangulation device |
| CN103735249A (en) * | 2013-12-27 | 2014-04-23 | 中国科学院苏州生物医学工程技术研究所 | Fluorescence detector |
| US20190011365A1 (en) * | 2015-09-07 | 2019-01-10 | Direct Genomics Co., Ltd. | Total internal reflection fluorescence imaging system and sequencing device |
| CN112816396A (en) * | 2021-01-29 | 2021-05-18 | 上海理工大学 | Detection imaging system based on EMCCD and AFM |
| CN112903713A (en) * | 2021-03-09 | 2021-06-04 | 哈尔滨工业大学 | Dark field imaging and spatial phase-shifting interference combined microsphere defect detection device and method |
-
2021
- 2021-08-19 CN CN202110952431.8A patent/CN113758417B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719192A (en) * | 2005-06-23 | 2006-01-11 | 哈尔滨工业大学 | Bidimension photoelectric self collimating device based on optical length multiplication compensation method and its measuring method |
| CN1995908A (en) * | 2006-12-28 | 2007-07-11 | 厦门大学 | Single-photodetector confocal laser triangulation device |
| CN103735249A (en) * | 2013-12-27 | 2014-04-23 | 中国科学院苏州生物医学工程技术研究所 | Fluorescence detector |
| US20190011365A1 (en) * | 2015-09-07 | 2019-01-10 | Direct Genomics Co., Ltd. | Total internal reflection fluorescence imaging system and sequencing device |
| CN112816396A (en) * | 2021-01-29 | 2021-05-18 | 上海理工大学 | Detection imaging system based on EMCCD and AFM |
| CN112903713A (en) * | 2021-03-09 | 2021-06-04 | 哈尔滨工业大学 | Dark field imaging and spatial phase-shifting interference combined microsphere defect detection device and method |
Non-Patent Citations (1)
| Title |
|---|
| 屈亚威 等: "高分辨率显微内镜成像系统的构建与初步应用", 中国医疗器械杂志, vol. 40, no. 03, 31 May 2016 (2016-05-31), pages 161 - 168 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264249A (en) * | 2021-12-14 | 2022-04-01 | 中国石油大学(华东) | Three-dimensional measuring system and method for deep hole narrow inner cavity |
| CN115289979A (en) * | 2022-08-18 | 2022-11-04 | 天津大学 | Miniature laser displacement sensor based on structured light vision |
| CN117433421A (en) * | 2023-12-20 | 2024-01-23 | 中北大学 | Multi-geometric-quantity deep hole measuring instrument based on microscope and measuring method thereof |
| CN117433421B (en) * | 2023-12-20 | 2024-03-08 | 中北大学 | Multi-geometric-quantity deep hole measuring instrument based on microscope and measuring method thereof |
| CN117804357A (en) * | 2024-03-01 | 2024-04-02 | 中北大学 | Deep hole detection device and detection method based on laser reflection |
| CN117804357B (en) * | 2024-03-01 | 2024-05-14 | 中北大学 | Deep hole detection device and detection method based on laser reflection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113758417B (en) | 2024-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113758417A (en) | Endoscopic deep hole inner surface multiplication imaging device | |
| US11435322B2 (en) | Objective optical system and photoacoustic imaging device | |
| CN104296687A (en) | Smooth large-curvature sample measurement device and method based on fluorescent confocal microscopy | |
| CN102661938A (en) | Method and device of stimulated emission depletion (STED) microscopy based on tangential polarized light | |
| CN104374695A (en) | Telescoping focusing collection system and method for LIBS remote detection | |
| CN101571383A (en) | Detecting device for measuring difference of relative radius of curvature between sub-lenses of sphere surface spliced telescope | |
| CN113701669A (en) | Method for quickly and accurately measuring profile characteristics of inner section of deep hole | |
| CN106403843A (en) | Contour scanning measurement device and method for large-aperture high-curvature optical element based on confocal microscopy | |
| CN216595711U (en) | Large-view-field multi-magnification double-telecentric lens for 3D measurement | |
| CN105181652A (en) | Light-field imaging system based on surface plasmon-coupled emission effect | |
| CN210981182U (en) | Projection system structure with built-in edge finder | |
| CN219015598U (en) | Handheld optical fiber end face detection equipment | |
| CN110986836B (en) | High-precision roughness measuring device based on annular core optical fiber | |
| CN110045153B (en) | Ultra-thin atomic force microscope gauge head | |
| CN116105638A (en) | U-shaped turntable coaxiality detection system and detection method | |
| CN111458299A (en) | Gas absorption cell, gas concentration detection device and method | |
| CN210321640U (en) | Optical path structure and equipment for rapidly measuring curvature radius of optical lens | |
| CN211293369U (en) | High-coupling-efficiency optical fiber laser debugging device | |
| CN203376255U (en) | Telescopic focusing collecting system for LIBS remote detection | |
| CN105890872A (en) | Large-core-diameter optical fiber end surface detection method and device | |
| CN114264249A (en) | Three-dimensional measuring system and method for deep hole narrow inner cavity | |
| WO2021189453A1 (en) | Miniature fluorescence microscopy imaging module | |
| CN113237438A (en) | Quasi/mirror surface morphology super-resolution measuring method and device of coaxial axis structure | |
| CN201731990U (en) | Portable lensmeter | |
| CN204302560U (en) | Optical system product parts axiality and perpendicularity debug instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |