CN112034602A - Panoramic lens in reflective suitable for industry detects - Google Patents
Panoramic lens in reflective suitable for industry detects Download PDFInfo
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- CN112034602A CN112034602A CN202010951879.3A CN202010951879A CN112034602A CN 112034602 A CN112034602 A CN 112034602A CN 202010951879 A CN202010951879 A CN 202010951879A CN 112034602 A CN112034602 A CN 112034602A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/22—Telecentric objectives or lens systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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Abstract
The invention discloses a reflective inner panoramic lens suitable for industrial detection, which comprises a lens fixing support, a telecentric lens, a lens fixing plate, an inner cylinder, a middle cylinder, an outer cylinder, a straight light source, a reflector lens frame, a reflector lens group and a straight light source support. Compared with the prior art, the reflective inner panoramic lens applicable to industrial detection can detect the inner surface and the outer surface of a part, particularly a bearing product, the straight light source is used for assisting the inner surface of the telecentric lens and the inner surface of the detection part of the reflector group, and the annular light source is used for assisting the outer surface of the detection part of the telecentric lens and the detection part of the reflector group; the invention has simple structure and low cost.
Description
Technical Field
The invention relates to the field of optical lenses, in particular to a reflective inner panoramic lens suitable for industrial detection.
Background
The panoramic lens is a device which can obtain a full 360 degrees in the horizontal direction and a certain angle of view field in the vertical direction by utilizing a panoramic technology, and the imaging mode can provide all-round information of an object and an environment in real time and strive for time for subsequent image processing and analysis. With the rapid development of digital image processing technology, the demand of panoramic lens is increasing day by day.
With the development of scientific technology, the industrial automation degree is gradually deepened, and in the aspect of industrial detection, with the development of CCD/CMOS cameras, the machine detection gradually replaces manual detection. The existing detection lens for the bearings in the market is often expensive and has low detection precision, and a plurality of lenses are often used in the appearance detection of the bearings, so that accurate appearance data of the bearings can be obtained through later-stage image processing. A common panoramic lens in the market at present is a fisheye lens, but the fisheye lens generates barrel-shaped distortion, so that an image is deformed, and the panoramic lens is not suitable for industrial appearance detection.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides the reflective panoramic lens of the inner and outer panoramic lenses, which has the advantages of low cost and simple structure and is suitable for industrial detection.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a reflective inner panoramic lens suitable for industrial detection comprises a lens fixing support, a telecentric lens, a lens fixing plate, an inner barrel, a middle barrel, an outer barrel, a straight light source, a reflector lens frame, a reflector lens group and a straight light source support; the telecentric lens is arranged in the lens fixing plate and then is arranged on the lens fixing bracket; the reflecting lens frame is in an inverted cone shape, a reflecting lens group is arranged on the inner conical surface of the reflecting lens frame, and the reflecting lens group consists of six reflecting lenses which are distributed in a hexagonal shape; the reflector frame is connected with the lens fixing bracket through the outer barrel; the middle cylinder is connected with the inner cylinder through a reverse thick screw, and the inner cylinder is fixed on the lens fixing support through a stop ring; the straight light source is fixed on the middle cylinder through a straight light source support, and the annular light source is detachably mounted on the inner wall of the lower portion of the middle cylinder.
Further, telecentric lens includes conical lens housing, is fixed with first plane lens, second spherical lens, third spherical lens, fourth spherical lens, fifth plane lens, sixth spherical lens, seventh spherical lens and eighth spherical lens from the image plane to the object plane in proper order along the optical axis from top to bottom in the lens housing, the object plane side of second spherical lens is the convex surface, and the image plane side is the concave surface, and the object plane side of third spherical lens is the convex surface, and the image plane side is the convex surface, and the object plane side of fourth spherical lens is the concave surface, and the image plane side is the concave surface, and the object plane side of sixth spherical lens is the concave surface, and the image plane side is the concave surface, and the object plane side of seventh spherical lens is the convex surface, and the image plane side is the plane, and the object plane side of eighth spherical lens is the convex surface, and the image plane side is the plane.
Preferably, a lens gasket is sleeved outside the telecentric lens positioned on the upper end surface of the lens fixing bracket.
Preferably, the diameter of the first flat mirror is 7.78mm, and the thickness of the first flat mirror is 3 mm.
Preferably, the radius of curvature of the convex surface on the object plane side of the second spherical lens is r13.75mm, the radius of curvature of the concave surface on the image plane side of the second spherical lens is r11.84mm, and the core thickness of the second spherical lens is 6.2 mm.
Preferably, the radius of curvature of the convex surface on the object plane side of the third spherical lens is r15.85mm, the radius of curvature of the convex surface on the image plane side of the third spherical lens is r14.75mm, and the core thickness of the third spherical lens is 5.8 mm.
Preferably, the radius of curvature of the concave surface on the object plane side of the fourth spherical lens is r90.23mm, the radius of curvature of the concave surface on the image plane side of the fourth spherical lens is r15.75mm, and the core thickness of the fourth spherical lens is 2.8 mm.
Preferably, the fifth planar lens has a diameter of 2.93mm and a thickness of 1 mm.
Preferably, the radius of curvature of the concave surface on the object plane side of the sixth spherical lens is r926.8mm, the radius of curvature of the concave surface on the image plane side of the sixth spherical lens is r275.85mm, and the core thickness of the sixth spherical lens is 8.4 mm; the radius of curvature of the convex surface on the object plane side of the seventh spherical lens is R157.45mm, the radius of curvature of the convex surface on the image plane side of the seventh spherical lens is R957.28mm, and the core thickness of the seventh spherical lens is 19 mm; the sixth spherical lens and the seventh spherical lens are cemented lenses.
Preferably, the radius of curvature of the convex surface on the object side of the eighth spherical lens is R154mm, and the core thickness of the eighth spherical lens is 12.5 mm.
Compared with the prior art, the reflective inner panoramic lens applicable to industrial detection can detect the inner surface and the outer surface of a part, particularly a bearing product, the straight light source is used for assisting the inner surface of the telecentric lens and the inner surface of the detection part of the reflector group, and the annular light source is used for assisting the outer surface of the detection part of the telecentric lens and the detection part of the reflector group; the invention has simple structure and low cost.
Drawings
Fig. 1 is a full sectional view of a reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 2 is a partial view of a reflective inner panoramic lens suitable for industrial inspection according to the present invention.
FIG. 3 is a schematic diagram of a reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 4 is a curvature of field diagram of the reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 5 is a transfer function diagram of the reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 6 is a view of the transfer function vs. field of view of the reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 7 is a speckle pattern of the reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Fig. 8 is a panoramic view of the outer surface of a bearing photographed by the reflective inner panoramic lens suitable for industrial inspection according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
A reflective inner panoramic lens suitable for industrial detection comprises a lens fixing support 3, a telecentric lens 1, a lens fixing plate 2, an inner barrel 4, a middle barrel 5, an outer barrel 6, a straight light source 7, a reflecting lens frame 8, a reflecting lens group 12 and a straight light source support 11; the telecentric lens 1 is arranged on the lens fixing plate 2 and then on the lens fixing bracket 3; the reflecting lens frame 8 is in an inverted cone shape, the reflecting lens group 12 is arranged on the inner conical surface of the reflecting lens frame 8, and the reflecting lens group 12 consists of six reflecting lenses and is distributed in a hexagonal shape; the reflector frame 8 is connected with the lens fixing bracket 3 through the outer barrel 6; the middle cylinder 5 is connected with the inner cylinder 4 through a reverse thick screw, the inner cylinder 4 is fixed on the lens fixing bracket 3 through a stop ring, and the vertical adjustment of the direct light source 7 is realized by utilizing the reverse thick screw; the straight light source 7 is fixed on the middle cylinder 5 through a straight light source support 11, and the annular light source is detachably mounted on the inner wall of the lower part of the middle cylinder 5.
In this embodiment, the telecentric lens 1 includes a conical lens housing, a first plane lens 13, a second spherical lens 14, a third spherical lens 15, a fourth spherical lens 16, a fifth plane lens 17, a sixth spherical lens 18, a seventh spherical lens 19 and an eighth spherical lens 20 are sequentially fixed in the lens housing from the image plane to the object plane along the optical axis from top to bottom, the object plane side of the second spherical lens 14 is a convex surface, the image plane side is a concave surface, the object plane side of the third spherical lens 15 is a convex surface, the image plane side is a convex surface, the object plane side of the fourth spherical lens 16 is a concave surface, the image plane side is a concave surface, the object plane side of the sixth spherical lens 18 is a concave surface, the image plane side is a concave surface, the object plane side of the seventh spherical lens 19 is a convex surface, the image plane side is a convex surface, and the object plane side of the eighth spherical lens 20 is a convex surface, and the image.
In this embodiment, the lens gasket 2 is sleeved outside the telecentric lens 1 positioned on the upper end surface of the lens fixing support 11, and the lens gasket 2 can prevent the telecentric lens 1 from shaking in the lens fixing support 11.
In this embodiment, the diameter of the first flat mirror 13 is 7.78mm, and the thickness of the first flat mirror 13 is 3 mm.
In this embodiment, the radius of curvature of the convex surface on the object plane side of the second spherical lens 14 is r13.75mm, the radius of curvature of the concave surface on the image plane side of the second spherical lens 14 is r11.84mm, and the core thickness of the second spherical lens 14 is 6.2 mm.
In this embodiment, the radius of curvature of the convex surface on the object plane side of the third spherical lens 15 is r15.85mm, the radius of curvature of the convex surface on the image plane side of the third spherical lens 15 is r14.75mm, and the core thickness of the third spherical lens 15 is 5.8 mm.
In this embodiment, the radius of curvature of the concave surface on the object plane side of the fourth spherical lens 16 is r90.23mm, the radius of curvature of the concave surface on the image plane side of the fourth spherical lens 16 is r15.75mm, and the core thickness of the fourth spherical lens 16 is 2.8 mm.
In this embodiment, the diameter of the fifth planar lens 17 is 2.93mm, and the thickness of the fifth planar lens 17 is 1 mm.
In this embodiment, the radius of curvature of the concave surface on the object plane side of the sixth spherical lens 18 is r926.8mm, the radius of curvature of the concave surface on the image plane side of the sixth spherical lens 18 is r275.85mm, and the core thickness of the sixth spherical lens 18 is 8.4 mm; the radius of curvature of the convex surface of the seventh spherical lens 19 on the object plane side is R157.45mm, the radius of curvature of the convex surface of the seventh spherical lens 19 on the image plane side is R957.28mm, and the core thickness of the seventh spherical lens 19 is 19 mm; the sixth spherical lens 18 and the seventh spherical lens 19 are cemented lenses.
In this embodiment, the radius of curvature of the convex surface on the object plane side of the eighth spherical lens 20 is R154mm, and the core thickness of the eighth spherical lens 20 is 12.5 mm.
Specifically, specific parameters of each lens in the present embodiment are shown in table 1.
TABLE 1
| Surf | Radius | Thickness | nd | vd |
| OBJ | Infinite number of elements | 185.100 | ||
| 1 | 154.320 | 11.840 | 1.774002 | 54.289298 |
| 2 | 1725.400 | 2.000 | ||
| 3 | 134.790 | 18.000 | 1.758479 | 63.017062 |
| 4 | -926.800 | 8.400 | 1.883001 | 40.867939 |
| 5 | 275.855 | 157.45 | ||
| STO | Infinite number of elements | 8.692 | ||
| 7 | -81.800 | 3.000 | 1.808108 | 22.690566 |
| 8 | 13.000 | 0.531 | ||
| 9 | 16.502 | 6.500 | 1.883001 | 40.867939 |
| 10 | -15.750 | 2.930 | ||
| 11 | 12.348 | 5.000 | 1.755002 | 52.329298 |
| 12 | 13.000 | 12.500 | ||
| IMA | Infinite number of elements | - |
In order to verify the optical performance of the outer panoramic lens applicable to industrial inspection according to the present embodiment, the outer panoramic lens applicable to industrial inspection according to the present embodiment is tested, and the test results are shown in fig. 4 to 8, where fig. 4 to 8 are a field curvature diagram, a transfer function vs. field diagram, and a stipple diagram of the lens, respectively.
As can be seen from FIG. 4, the curvature of field of the lens is less than 0.06mm, the coincidence ratio of the intersection point of the light beam and the ideal image point is good, the whole image is basically on one plane, and the quality of the image is excellent. The distortion of the lens is less than 3%, the image deformation rate is small, and the image can reflect the real situation of the sample more truly.
As can be seen from fig. 5, the optical transfer function of the lens is affected by the diffraction limit and the spatial frequency. The optical transfer function decreases with increasing diffraction limit and decreases with increasing spatial frequency. When the spatial frequency is small, the optical transfer function is more than 90%; the optical transfer function is greater than 85% at lower diffraction limits.
As can be seen from fig. 6, the spatial frequency has a significant effect on the optical transfer function, and the higher the spatial frequency, the lower the optical transfer function. The larger the field of view, the lower the optical transfer function. The lens is suitable for detecting sample pieces with lower spatial frequency and smaller field of view.
As can be seen from fig. 7, the alligator spot of the lens is 2.014 μm, the alligator spot radius value is small, the concentration of the light with the image surface after being imaged by the lens is high, the distribution of the points in the point-spot diagram is dense, and the resolution of the lens is high.
Referring to fig. 1 and 8, when the reflective inner panoramic lens for industrial inspection of the embodiment is used to inspect a bearing product, taking the inspection bearing 9 as an example, first axially fixing the bearing 9 on a workbench 10, disposing the reflective inner panoramic lens for industrial inspection above the bearing 9, then connecting the top of the telecentric lens 1 of the reflective inner panoramic lens for industrial inspection to the front end of the camera, turning on the straight light source 7 to assist the telecentric lens 1 and the reflective lens group 12 to inspect the inner surface of the bearing 9, and turning on the annular light source to assist the telecentric lens 1 and the reflective lens group 12 to inspect the outer surface of the bearing 9, so as to realize panoramic imaging of the inner surface and the outer surface of the bearing 9 by using the reflective inner panoramic lens for industrial inspection of the present invention. The three photographs shown in fig. 8 are panoramas of a certain part photographed by the reflex-type panoramic lens. The three pictures have higher definition, and the bright field and the dark field in the pictures are obviously distinguished, so that the processing of a later image algorithm is facilitated. The imaging of this camera lens is clear, can once realize the formation of image of multiaspect, and its formation of image result is equivalent to the result of a plurality of camera lenses formation of image jointly, uses this camera lens to detect the number that the part can effectively reduce camera lens and optics station, not only can practice thrift the space and can also reduce the input cost.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (10)
1. A reflective inner panoramic lens suitable for industrial detection comprises a lens fixing support (3), and is characterized by further comprising a telecentric lens (1), a lens fixing plate (2), an inner barrel (4), a middle barrel (5), an outer barrel (6), a straight light source (7), a reflector frame (8), a reflector group (12) and a straight light source support (11); the telecentric lens (1) is arranged on the lens fixing plate (2) and then is arranged on the lens fixing bracket (3); the reflecting lens frame (8) is in an inverted cone shape, a reflecting lens group (12) is arranged on the inner conical surface of the reflecting lens frame (8), and the reflecting lens group (12) consists of six reflecting lenses and is distributed in a hexagonal shape; the reflector frame (8) is connected with the lens fixing bracket (3) through the outer cylinder (6); the middle cylinder (5) is connected with the inner cylinder (4) through a reverse thick screw, and the inner cylinder (4) is fixed on the lens fixing support (3) through a stop ring; the straight light source (7) is fixed on the middle cylinder (5) through a straight light source support (11), and the inner wall of the lower part of the middle cylinder (5) is detachably provided with an annular light source.
2. The reflective inner panoramic lens suitable for industrial inspection according to claim 1, characterized in that: telecentric lens (1) is including conical lens housing, is fixed with first lens (13), second lens (14), third lens (15), fourth lens (16), fifth lens (17), sixth lens (18), seventh lens (19) and eighth lens (20) from image plane to object plane from the optical axis from top to bottom in the lens housing in proper order, the object plane side of second lens (14) is the convex surface, and the image plane side is the concave surface, and the object plane side of third lens (15) is the convex surface, and the image plane side is the convex surface, and the object plane side of fourth lens (16) is the concave surface, and the image plane side is the concave surface, and the object plane side of sixth lens (18) is the concave surface, and the image plane side is the convex surface, and the object plane side of eighth lens (20) is the convex surface, and the image plane side is the plane.
3. The reflective inner panoramic lens suitable for industrial inspection according to claim 1, characterized in that: a lens gasket (2) is sleeved outside the telecentric lens (1) positioned on the upper end surface of the lens fixing bracket (11).
4. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the diameter of the first plane lens (13) is 7.78mm, and the thickness of the first plane lens (13) is 3 mm.
5. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the radius of curvature of the convex surface of the object plane side of the second spherical lens (14) is R13.75mm, the radius of curvature of the concave surface of the image plane side of the second spherical lens (14) is R11.84mm, and the core thickness of the second spherical lens (14) is 6.2 mm.
6. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the radius of curvature of the convex surface of the object plane side of the third spherical lens (15) is R15.85mm, the radius of curvature of the convex surface of the image plane side of the third spherical lens (15) is R14.75mm, and the core thickness of the third spherical lens (15) is 5.8 mm.
7. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the radius of curvature of the concave surface of the object plane side of the fourth spherical lens (16) is R90.23mm, the radius of curvature of the concave surface of the image plane side of the fourth spherical lens (16) is R15.75mm, and the core thickness of the fourth spherical lens (16) is 2.8 mm.
8. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the diameter of the fifth plane lens (17) is 2.93mm, and the thickness of the fifth plane lens (17) is 1 mm.
9. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the radius of curvature of the concave surface on the object surface side of the sixth spherical lens (18) is R926.8mm, the radius of curvature of the concave surface on the image surface side of the sixth spherical lens (18) is R275.85mm, and the core thickness of the sixth spherical lens (18) is 8.4 mm; the radius of curvature of the convex surface of the seventh spherical lens (19) on the object plane side is R157.45mm, the radius of curvature of the convex surface of the seventh spherical lens (19) on the image plane side is R957.28mm, and the core thickness of the seventh spherical lens (19) is 19 mm; the sixth spherical lens (18) and the seventh spherical lens (19) are cemented lenses.
10. The reflective inner panoramic lens suitable for industrial inspection according to claim 2, characterized in that: the radius of curvature of the convex surface of the eighth spherical lens (20) on the object surface side is R154mm, and the core thickness of the eighth spherical lens (20) is 12.5 mm.
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| CN202010951879.3A CN112034602A (en) | 2020-09-11 | 2020-09-11 | Panoramic lens in reflective suitable for industry detects |
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| CN202010951879.3A CN112034602A (en) | 2020-09-11 | 2020-09-11 | Panoramic lens in reflective suitable for industry detects |
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| US20050279941A1 (en) * | 2004-06-22 | 2005-12-22 | Mei-Wei Tsao | Compact infrared spectrometer, and methods and systems for manufacture and assembly of components used in same |
| CN205450418U (en) * | 2016-03-29 | 2016-08-10 | 南京瓯谱光电科技有限公司 | 360 prism device |
| CN207148404U (en) * | 2017-09-13 | 2018-03-27 | 埃卫达智能电子科技（苏州）有限公司 | A kind of Polaroid Optical devices in eight visual angle |
| CN110823900A (en) * | 2018-08-13 | 2020-02-21 | 科迈士瑞士股份有限公司 | Inspection device for inspecting a cable tip of a cable and method for cleaning a mirror of an inspection device |
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2020
- 2020-09-11 CN CN202010951879.3A patent/CN112034602A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050279941A1 (en) * | 2004-06-22 | 2005-12-22 | Mei-Wei Tsao | Compact infrared spectrometer, and methods and systems for manufacture and assembly of components used in same |
| CN205450418U (en) * | 2016-03-29 | 2016-08-10 | 南京瓯谱光电科技有限公司 | 360 prism device |
| CN207148404U (en) * | 2017-09-13 | 2018-03-27 | 埃卫达智能电子科技（苏州）有限公司 | A kind of Polaroid Optical devices in eight visual angle |
| CN110823900A (en) * | 2018-08-13 | 2020-02-21 | 科迈士瑞士股份有限公司 | Inspection device for inspecting a cable tip of a cable and method for cleaning a mirror of an inspection device |
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