CN219320519U - High-definition lens for endoscope - Google Patents
High-definition lens for endoscope Download PDFInfo
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- CN219320519U CN219320519U CN202223546458.6U CN202223546458U CN219320519U CN 219320519 U CN219320519 U CN 219320519U CN 202223546458 U CN202223546458 U CN 202223546458U CN 219320519 U CN219320519 U CN 219320519U
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Abstract
The utility model belongs to the field of lenses, and particularly relates to a high-definition lens for an endoscope. The novel glass comprises a glass substrate, wherein the glass substrate comprises a lens main body, the lens main body is provided with an outer side end and an inner side end, the outer side end is provided with a convex surface, the inner side end is a plane, and the surface of the convex surface is sequentially provided with a first MgF from inside to outside 2 Coating layer, first refraction film layer, second MgF 2 Coating layer, second refraction film layer and third MgF 2 Coating film layer, third refraction film layer and fourth MgF 2 Film coating layer and AF anti-fingerprint oil film layer. Through reasonable magnesium fluoride rete and refractive film's collocation, promote the anti-reflection performance of whole lens, promote the luminousness to promoted the imaging quality of camera lens, be provided with AF grease proofing rete in outermost layer moreover, can make the camera lens have advantages such as grease proofing dirt, anti fingerprint, scratch resistance, effectively reduce the pollution.
Description
[ field of technology ]
The utility model belongs to the field of lenses, and particularly relates to a high-definition lens for an endoscope.
[ background Art ]
Endoscopes are detection instruments that integrate traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, and the like. One with an image sensor, optical lens, light source illumination, mechanical means, etc. The imaging quality of the endoscope is an important parameter directly reflecting the performance of the endoscope, the conventional endoscope lens generally adopts a film system structure formed by TI series materials, the film system material has high cost, high reject ratio and unstable imaging quality, and is easy to remain dirt, and the endoscope is difficult to clean due to the small radius size.
[ utility model ]
The utility model provides a high-definition lens for an endoscope, which aims to solve the problem that stains are easy to remain on the surface of the lens of the endoscope in the prior art.
The utility model is realized by the following technical scheme:
the utility model provides a high definition lens for endoscope, includes glass substrate, glass substrate includes the lens main part, the lens main part has outside end and inboard end, have the convex surface on the outside end, the inboard end is the plane, the surface of convex surface is equipped with first MgF from interior to exterior in proper order 2 Coating layer, first refraction film layer, second MgF 2 Coating layer, second refraction film layer and third MgF 2 Coating film layer, third refraction film layer and fourth MgF 2 Film coating layer and AF anti-fingerprint oil film layer.
In the high-definition lens for an endoscope described above, the outer end of the lens body is located at the mounting portion having a planar structure on the outer periphery of the convex surface.
In the high-definition lens for an endoscope described above, the convex surface and the mounting portion are connected by a rounded corner.
The high-definition lens for an endoscope as described above, wherein the thickness from the outer end to the inner end is 0.6mm to 0.73mm.
In the high-definition lens for an endoscope, the distance from the outermost convex point of the convex surface to the inner end is 0.85mm to 0.91mm.
In the high-definition lens for an endoscope, the distance from the outermost convex point of the convex surface to the outer end is 0.25mm to 0.29mm.
The high-definition lens for an endoscope as described above, wherein the radius of curvature of the convex surface is 3mm to 3.5mm.
In the high-definition lens for an endoscope, the first refraction film layer, the second refraction film layer and the third refraction film layer are all lanthanum carbonate film layers.
The high-definition lens for endoscope as described above, wherein the first MgF 2 The thickness of the film coating layer is 45 nm-46.7 nm, and the second MgF 2 The thickness of the film coating layer is 48 nm-51.6 nm, and the third MgF 2 The thickness of the film coating layer is 11 nm-13.1 nm, and the fourth MgF 2 The thickness of the coating layer is 98 nm-100.9 nm.
The above-mentioned high-definition lens for endoscope, wherein the thickness of the AF oil-repellent film is 18nm to 25nm.
Compared with the prior art, the utility model has the following advantages:
the utility model provides a high-definition lens for an endoscope, which improves the anti-reflection performance and the light transmittance of the whole lens through the reasonable collocation of a magnesium fluoride film layer and a refraction film layer, thereby improving the imaging quality of the lens.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a high definition lens for an endoscope according to the present utility model;
FIG. 2 is a schematic view of the film layer of portion A in FIG. 1;
FIG. 3 is a schematic view showing a reflectance test of a high definition lens for an endoscope according to the present utility model.
[ detailed description ] of the utility model
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model is realized by the following technical scheme:
as shown in fig. 1 to 3, a high-definition lens for an endoscope comprises a glass substrate 1, wherein the glass substrate 1 comprises a lens main body 11, the lens main body 11 is provided with an outer side end 110 and an inner side end 111, the outer side end 110 is provided with a convex surface 112, the inner side end is a plane, and the surface of the convex surface 112 is sequentially provided with a first MgF from inside to outside 2 Film coating layer 20, first refraction film layer 21, second MgF 2 Coating layer 22, second refraction film layer 23 and third MgF 2 Coating layer 24, third refraction film layer 25 and fourth MgF 2 Film coating layer 26 and AF fingerprint-proof oil film layer 27. The utility model provides a high-definition lens for an endoscope, which improves the anti-reflection performance and the light transmittance of the whole lens through the reasonable collocation of a magnesium fluoride film layer and a refraction film layer, thereby improving the imaging quality of the lens.
Further, since the size and range of the light transmittance of the high-definition lens for the projection optical system are affected by the film thickness of each layer, the size and range of the light transmittance can be adjusted by controlling the film thickness. The first MgF 2 The thickness of the coating layer 20 is 45nm to 46.7nm. Preferably, the first MgF 2 The thickness of the coating layer 20 was 45.76nm. The second MgF 2 The thickness of the coating layer 22 is 48nm to 51.6nm. Preferably, the second MgF 2 The thickness of the coating layer 22 was 50.62nm. The third MgF 2 The thickness of the coating layer 24 is 11nm to 13.1nm. Preferably, the third MgF 2 The thickness of the coating layer 24 was 12.11nm. The fourth MgF 2 The thickness of the coating layer 26 is 98nm to 100.9nm. Preferably, the fourth MgF 2 The thickness of the coating layer 26 was 100.08nm. The thickness of the AF oil-repellent film 27 is 18nm to 25nm. Preferably, the AF protection filmLayer 27 has a thickness of 19.33nm.
In the embodiment of the present utility model, the first refractive film layer 21, the second refractive film layer 23, and the third refractive film layer 25 are lanthanum carbonate film layers. Also, in order to meet the light transmittance requirement, the refractive film layer needs to be thickness-designed. Specifically, the thickness of the first refractive film layer 21 is 20nm to 21.45nm. Preferably, the thickness of the first refractive film layer 21 is 20.45nm. The thickness of the second refractive film layer 23 is 55nm to 58.7nm, and preferably, the thickness of the second refractive film layer 23 is 57.37nm. The thickness of the third refraction film layer 25 is 58 nm-60.5 nm, preferably, the thickness of the third refraction film layer 25 is 59.45nm.
The reflectance test was performed on the high-definition lens for an endoscope according to the present embodiment using the above-described preferable film thicknesses, and the test results are shown in fig. 3. Fig. 3 shows the state of reflectance change of the high-definition lens for an endoscope according to the present embodiment under different wavelengths of incident light, and the X-axis is the wavelength of the incident light in fig. 3. The Y-axis is the reflectance of the high-definition lens for an endoscope, which is obtained in fig. 3, and the reflectance is less than 0.2% when the wavelength of the incident light is about 420nm to 685nm, that is, the high-definition lens for an endoscope according to the present embodiment has good transmittance.
More specifically, the outer end 110 of the lens body 11 is located at a mounting portion 113 having a planar structure on the outer periphery of the convex surface 112. The structure is simple, and the installation and the use of the lens are more convenient.
In addition, in this embodiment, the convex surface 112 and the mounting portion 113 are connected by a rounded corner. Effectively increase the intensity of convex surface 112, can make the outside end of installation department more laminate with the cooperation portion after having cooperated the installation.
In the embodiment of the utility model, the installation and use requirements are met through reasonable structural design. The thickness d from the outer side end 110 to the inner side end 111 is 0.6mm to 0.73mm, preferably 0.633mm in this embodiment, the distance H from the outermost convex point of the convex surface 112 to the inner side end 111 is 0.85mm to 0.91mm, preferably 0.9mm in this embodiment, the distance H from the outermost convex point of the convex surface 112 to the outer side end 110 is 0.25mm to 0.29mm, preferably 0.267mm in this embodiment, and the radius of curvature of the convex surface 112 is 3mm to 3.5mm, preferably 3.3mm in this embodiment. And the diameter D of the lens as a whole is 2.6mm.
The utility model provides a high-definition lens for an endoscope, which improves the anti-reflection performance and the light transmittance of the whole lens through the reasonable collocation of a magnesium fluoride film layer and a refraction film layer, thereby improving the imaging quality of the lens.
The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of the utility model to such description. The method, structure, and the like similar to or identical to those of the present utility model, or a plurality of technical deductions or substitutions are made on the premise of the conception of the present utility model, and are considered to be the protection scope of the present utility model.
Claims (10)
1. The utility model provides a high definition lens for endoscope, includes glass substrate (1), its characterized in that, glass substrate (1) includes lens main part (11), lens main part (11) have outside end (110) and inboard end (111), have convex surface (112) on outside end (110), the inboard end is the plane, the surface of convex surface (112) is from interior to exterior equipped with first MgF in proper order 2 A coating layer (20), a first refraction film layer (21) and a second MgF 2 A coating layer (22), a second refraction film layer (23) and a third MgF 2 A coating layer (24), a third refraction film layer (25) and a fourth MgF 2 The film coating layer (26) and the AF fingerprint-proof oil film layer (27).
2. The high-definition lens for an endoscope according to claim 1, wherein the outer side end (110) of the lens body (11) is located at an attachment portion (113) having a planar structure on the outer periphery of the convex surface (112).
3. A high definition lens for an endoscope according to claim 2, characterized in that said convex surface (112) and said mounting portion (113) are connected by a rounded corner.
4. The high-definition lens for an endoscope according to claim 2, wherein the thickness from the outer end (110) to the inner end (111) is 0.6mm to 0.73mm.
5. The high-definition lens for an endoscope according to claim 4, wherein a distance from an outermost convex point of the convex surface (112) to the inner end (111) is 0.85mm to 0.91mm.
6. The high-definition lens for an endoscope according to claim 5, wherein a distance from an outermost convex point of said convex surface (112) to an outer end (110) is 0.25mm to 0.29mm.
7. The high-definition lens for an endoscope according to claim 1, wherein the radius of curvature of the convex surface (112) is 3mm to 3.5mm.
8. The high-definition lens for an endoscope according to claim 2, wherein the first refractive film layer (21), the second refractive film layer (23) and the third refractive film layer (25) are lanthanum carbonate film layers.
9. The high-definition lens for an endoscope according to claim 8, wherein said first MgF 2 The thickness of the coating layer (20) is 45 nm-46.7 nm, and the second MgF 2 The thickness of the coating layer (22) is 48 nm-51.6 nm, and the third MgF 2 The thickness of the coating layer (24) is 11 nm-13.1 nm, and the fourth MgF 2 The thickness of the coating layer (26) is 98 nm-100.9 nm.
10. The high-definition lens for an endoscope according to claim 9, wherein the thickness of said AF anti-fingerprint oil film layer (27) is 18nm to 25nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546458.6U CN219320519U (en) | 2022-12-27 | 2022-12-27 | High-definition lens for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223546458.6U CN219320519U (en) | 2022-12-27 | 2022-12-27 | High-definition lens for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219320519U true CN219320519U (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223546458.6U Active CN219320519U (en) | 2022-12-27 | 2022-12-27 | High-definition lens for endoscope |
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| Country | Link |
|---|---|
| CN (1) | CN219320519U (en) |
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2022
- 2022-12-27 CN CN202223546458.6U patent/CN219320519U/en active Active
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