CN114488479A - Large-field-of-view high-resolution industrial lens with front diaphragm - Google Patents
Large-field-of-view high-resolution industrial lens with front diaphragm Download PDFInfo
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- CN114488479A CN114488479A CN202210023411.7A CN202210023411A CN114488479A CN 114488479 A CN114488479 A CN 114488479A CN 202210023411 A CN202210023411 A CN 202210023411A CN 114488479 A CN114488479 A CN 114488479A
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- 230000005499 meniscus Effects 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 17
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- 230000007547 defect Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 10
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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
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
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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
Abstract
The invention discloses an industrial lens with a large field of view and a high resolution front diaphragm.A light path system of the industrial lens is sequentially provided with the front diaphragm, an eyepiece front lens group and a rear lens group from an object side to an image side along an optical axis; the variation range of the clear aperture of the front diaphragm is 2mm to 5 mm; the eyepiece front lens group comprises a first positive meniscus lens and a second biconvex lens, the first positive meniscus lens and the second biconvex lens are matched to form an image of an object in a relay manner, and the imaging field angle of the rear lens group is reduced; the rear mirror group comprises a fixed mirror group and a focusing mirror group, the focusing mirror group can move along the direction of an optical axis, the moving range is 7.386mm to 10.169mm, and the working distance range can be [0.25m, ∞ ] through the integral movement of the focusing mirror group. By optimizing the grouping structure design of the industrial lens, the invention realizes the imaging quality of high resolution under 125-degree full-field without the assistance of a mechanical motion device, and overcomes the defect of low resolution of the edge field of the existing lens.
Description
Technical Field
The invention relates to the technical field of optical imaging lenses, in particular to an industrial lens with a large field of view and a high resolution front diaphragm.
Background
In recent years, near-eye display systems such as augmented reality and virtual reality are rapidly developing, and in order to accurately evaluate the performance of equipment and ensure the performance consistency of mass production equipment, a detection device using the near-eye display system is required. The core component of the optical detection device is an optical lens capable of simulating human eyes. The entrance pupil of the human eye and the exit pupil of the near-eye display system are matched, the diameter of the entrance pupil of the human eye is 2 to 8mm, and the field angle of the human eye is up to 124 degrees.
The defects of the prior art are that the traditional high-resolution large-field-of-view lens, such as a lens with a built-in diaphragm like a fish-eye lens, cannot be matched with an eye box area due to the fact that the distance between an entrance pupil and an exit pupil of a near-eye display system is too far, a field of view is vignetted, and finally light with a large field of view cannot be collected. The entrance pupil position, the field angle and the resolution of the lens with the built-in diaphragm are not matched with the human eyes, so the measured optical performance data cannot quantitatively represent the actual viewing condition of the human eyes. Meanwhile, a small-field lens used for detection of the near-eye display system needs to use a mechanical movement device to improve the detection field angle, the device is complex, and the detection efficiency is low; other large-field lenses cannot achieve high-resolution edge field detection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and in order to realize the purpose, the industrial lens with the large field of view and the high resolution and the front diaphragm is adopted to solve the problems in the background technology.
An industrial lens with a large field of view and a high resolution front diaphragm is characterized in that a light path system of the industrial lens is sequentially provided with the front diaphragm, an eyepiece front lens group and a rear lens group from an object side to an image side along an optical axis;
the variation range of the clear aperture of the front diaphragm is 2mm to 5 mm;
the eyepiece front lens group comprises a first positive meniscus lens and a second biconvex lens, the first positive meniscus lens and the second biconvex lens are matched to form an image of an object in a relay manner, and the imaging field angle of the rear lens group is reduced;
the rear mirror group comprises a fixed mirror group and a focusing mirror group, the focusing mirror group can move along the direction of an optical axis, the moving range is 7.386mm to 10.169mm, and the working distance range can be [0.25 and infinity ] through the integral movement of the focusing mirror group.
As a further technical scheme: when the clear aperture of the front diaphragm is set to be 3.6mm of the average value of the sizes of the pupils of the human eyes, the modulation transfer function MTF of the central field is greater than 0.4@100lp/mm, and the modulation transfer function MTF of the edge field is greater than 0.2@80 lp/mm.
As a further technical scheme: the fixed lens group comprises a third double-cemented lens, a fourth double-convex lens, a fifth double-cemented lens, a sixth double-concave lens, a seventh double-cemented lens, an eighth double-cemented lens and a ninth double-convex lens.
As a further technical scheme: the third double-cemented lens is formed by cementing a double convex lens at the object side and a double concave lens at the image side, the fifth double-cemented lens is formed by cementing a negative meniscus lens at the object side and a positive meniscus lens at the image side, the seventh double-cemented lens is formed by cementing a negative meniscus lens at the object side and a positive meniscus lens at the image side, and the eighth double-cemented lens is formed by cementing a double concave lens at the object side and a double convex lens at the image side.
As a further technical scheme: the focusing lens group comprises a tenth biconvex lens, an eleventh biconvex cemented lens, a twelfth biconvex cemented lens, a thirteenth biconvex cemented lens, a fourteenth biconvex cemented lens and a fifteenth biconvex lens.
As a further technical scheme: the eleventh double cemented lens is formed by a double convex lens at the object side and a double concave lens at the image side through gluing, the twelfth double cemented lens is formed by a double convex lens at the object side and a negative meniscus lens at the image side through gluing, the thirteenth double cemented lens is formed by a negative meniscus lens at the object side and a double convex lens at the image side through gluing, and the fourteenth double cemented lens is formed by a positive meniscus lens at the object side and a negative meniscus lens at the image side through gluing.
Compared with the prior art, the invention has the following technical effects:
by adopting the technical scheme, the optical path system of the industrial lens is sequentially provided with the front diaphragm, the ocular front lens group and the aberration-compensated rear lens group from the object side to the image side along the optical axis. The invention adopts the grouping structure design of the front diaphragm ocular lens and the subsequent aberration compensating lens group, does not need the assistance of a mechanical movement device, and uses the rear lens group consisting of 13 lens groups to compensate the aberration introduced by the front diaphragm ocular lens and the ocular lens, thereby realizing 125-degree full-field high-resolution imaging. Meanwhile, the rear lens group formed by integrally moving six groups of rear lenses can realize the adjustment of the working distance from 0.25m to infinity, and the focusing mode is simple and convenient.
Drawings
The following detailed description of embodiments of the invention refers to the accompanying drawings in which:
FIG. 1 is a schematic diagram of an industrial lens configuration with a front diaphragm according to some embodiments disclosed herein;
FIG. 2 is an MTF graph of an industrial lens of some embodiments disclosed herein;
fig. 3 is a field curvature and distortion plot for an industrial lens of some embodiments disclosed herein.
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.
Referring to fig. 1, in an embodiment of the present invention, an industrial lens with a large field of view and a high resolution front diaphragm is provided, wherein a front diaphragm, an eyepiece front lens group, and a rear lens group are sequentially disposed along an optical axis from an object side to an image side of the industrial lens;
the change range of the clear aperture of the front diaphragm is 2mm to 5mm, and particularly, the main adjustable range of the pupils of human eyes can be covered.
The eyepiece front lens group comprises a first positive meniscus lens L1 and a second biconvex lens L2, the first positive meniscus lens and the second biconvex lens are matched to form an image of an object in a relay manner, and the size of an imaging field angle of the rear lens group is reduced; in a specific embodiment, the front eyepiece lens group is used for relaying and imaging an object between the second biconvex lens L2 and the third cemented doublet lens CL3, and simultaneously zooming a large field angle to a small field angle, so that aberration compensation is performed by the rear eyepiece lens group, and high-resolution imaging is realized.
The rear mirror group comprises a fixed mirror group and a focusing mirror group, the focusing mirror group can move along the direction of an optical axis, the moving range is 7.386mm to 10.169mm, and the working distance range can be [0.25 and infinity ] through the integral movement of the focusing mirror group. Specifically, the whole focusing mirror group can move along the optical axis direction, and clear imaging of an object under the working distance of 0.25m to infinity is realized.
The air space between the ninth lenticular lens L9 and the tenth lenticular lens L10 is 7.386mm to 10.169mm, corresponding to the moving range of the focusing lens group.
In a specific embodiment, when the clear aperture of the front diaphragm is 3.6mm of the average value of the sizes of pupils of human eyes, the MTF of the modulation transfer function of the central field is greater than 0.4@100lp/mm, and the MTF of the modulation transfer function of the peripheral field is greater than 0.2@80 lp/mm.
In a specific embodiment, the fixed lens group includes a third cemented doublet CL3, a fourth biconvex lens L4, a fifth cemented doublet CL5, a sixth biconcave lens L6, a seventh cemented doublet CL7, an eighth cemented doublet CL8, and a ninth biconvex lens L9.
In this embodiment, the third cemented doublet CL3 is formed by a double convex lens at the object side and a double concave lens at the image side by means of gluing, the fifth cemented doublet CL5 is formed by a negative meniscus lens at the object side and a positive meniscus lens at the image side by means of gluing, the seventh cemented doublet CL7 is formed by a negative meniscus lens at the object side and a positive meniscus lens at the image side by means of gluing, and the eighth cemented doublet CL8 is formed by a double concave lens at the object side and a double convex lens at the image side by means of gluing.
In a specific embodiment, the focusing lens group comprises a tenth double convex lens L10, an eleventh double cemented lens CL11, a twelfth double cemented lens CL12, a thirteenth double cemented lens CL13, a fourteenth double cemented lens CL14 and a fifteenth double convex lens L15.
In a specific embodiment, the eleventh cemented doublet CL11 is formed by a double convex lens at the object side and a double concave lens at the image side by means of gluing, the twelfth cemented doublet CL12 is formed by a double convex lens at the object side and a negative meniscus lens at the image side by means of gluing, the thirteenth cemented doublet CL13 is formed by a negative meniscus lens at the object side and a double convex lens at the image side by means of gluing, and the fourteenth cemented doublet CL14 is formed by a positive meniscus lens at the object side and a negative meniscus lens at the image side by means of gluing.
As shown in table one below, the table shows the surface parameters and material parameters of each lens. Wherein a positive radius of curvature indicates that the surface is convex, a negative radius of curvature indicates that the surface is concave, and an Infinity indicates that the surface is planar; wherein D represents the distance of the surface to the next surface on the optical axis; the unit of curvature radius and D are both mm; all the lenses are made of glass, Nd represents refractive index, Abbe represents dispersion value, and the specific models are shown in the following table.
Watch 1
As in the above table, x represents the air space between the lens L9 and the lens L10, and y represents the separation distance between the lens L15 and the image plane.
As shown in the following table two, the table shows values of the air intervals x and y for enabling the lens to be clearly focused under different working distances, and the unit of all numerical values in the table is mm; where Infinity represents an infinite working distance.
Watch two
As shown in fig. 2, the MTF curves of the industrial lens of the present invention in the visible light band at different angles of view are shown when the aperture of the diaphragm is 3.6mm, which is the average value of the pupil size of the human eye, at a working distance of 500 mm. The MTF contrasts of the central field of view of the industrial lens reach 0.72 and 0.46 at 50lp/mm and 100lp/mm respectively, the MTF contrasts of the edge field of view at 50lp/mm and 80lp/mm reach 0.6 and 0.39 respectively, and the resolution of the industrial lens at the central field of view and the resolution of the edge field of view of the industrial lens are high enough.
As shown in FIG. 3, the field curvature and F-theta distortion diagram of the industrial lens of the invention in the visible light band when the aperture of the diaphragm is 3.6mm which is the average value of the human eye pupil size under the working distance of 500mm are shown. The field curvature of the industrial lens is between-0.1 mm and 0.32mm, and the F-theta distortion is between 0.0% and 0.4%, which shows that the field curvature and distortion of the lens are effectively corrected.
As shown in Table III, the image surface point arrangement diagram of the industrial lens of the invention in the visible light wave band is shown when the diaphragm aperture is 3.5mm which is the average value of the human eye pupil size under the working distance of 500 mm. The Root Mean Square (RMS) light spot radius of the industrial lens under the full field angle is less than 4um, which shows that the lens has better resolution and optical performance.
| Field/degree of view | 0 | 10 | 20 | 31.25 | 40 | 50 | 62.5 |
| RMS radius/um | 3.052 | 2.966 | 3.193 | 3.202 | 2.560 | 3.571 | 2.908 |
| GEO radius/um | 4.738 | 5.391 | 7.313 | 7.741 | 6.762 | 7.281 | 6.974 |
Watch III
In this embodiment, the technical indexes of the industrial lens are as follows:
1) focal length: f is-16.5 mm;
2) aperture of the front diaphragm: 2 to 5 mm;
3) working distance: 0.25m to infinity;
4) angle of view 2 ω: 125 degrees;
5) the applicable spectrum range is as follows: 400 to 700 nm;
6) the central field MTF is greater than 0.4@100 lp/mm;
7) the MTF of the edge field is greater than 0.2@80 lp/mm;
8) total optical length: l is less than or equal to 400 mm;
9) maximum lens diameter: 52 mm;
10) image plane diameter: 36 mm.
Has the advantages that:
the mode of reducing the field of view by an eyepiece and compensating aberration by a rear lens group is adopted, and under the extreme asymmetric lens structure of the front diaphragm, 125-degree large-field imaging is realized, so that the defect of small field angle of the front diaphragm lens is overcome.
The observation field of view with the same size as human eyes can be realized without the need of a complex mechanical motion device for scanning the field angle, and meanwhile, the working distance of 0.25m nearest can be realized by the whole group moving mode of the rear half group of lens group, thereby being beneficial to the quick detection of the near-eye display system detection device and improving the yield of the near-eye display system.
12 lenses in the 15 groups of lenses adopt high-refractive-index and low-dispersion materials, and meanwhile, tens of lenses in the subsequent compensation lens group compensate aberration, so that the MTF of the central field of view of the lens exceeds 0.4 in high contrast when being 100lp/mm, and the MTF of the edge field of view still exceeds 0.2 in contrast when being 80lp/mm, and the near-to-eye display system detection device can realize more accurate detection of performances such as resolution, distortion, brightness uniformity, contrast and the like.
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, which should be construed as being within the scope of the invention.
Claims (6)
1. The industrial lens with the large field of view and the high resolution and the front diaphragm is characterized in that a light path system of the industrial lens is sequentially provided with the front diaphragm, an eyepiece front lens group and a rear lens group from an object side to an image side along an optical axis;
the variation range of the clear aperture of the front diaphragm is 2mm to 5 mm;
the eyepiece front lens group comprises a first positive meniscus lens and a second biconvex lens, the first positive meniscus lens and the second biconvex lens are matched to form an image of an object in a relay manner, and the imaging field angle of the rear lens group is reduced;
the rear mirror group comprises a fixed mirror group and a focusing mirror group, the focusing mirror group can move along the direction of an optical axis, the moving range is 7.386mm to 10.169mm, and the working distance range can be [0.25m, ∞ ] through the integral movement of the focusing mirror group.
2. The industrial lens with the large visual field and the high resolution front diaphragm as claimed in claim 1, wherein when the clear aperture of the front diaphragm is set to be 3.6mm as the mean value of the pupil size of the human eye, the modulation transfer function MTF of the central visual field is >0.4@100lp/mm, and the modulation transfer function MTF of the edge visual field is >0.2@80 lp/mm.
3. The industrial lens with large field of view and high resolution front stop of claim 1, wherein said fixed lens group comprises a third cemented doublet, a fourth biconvex lens, a fifth cemented doublet, a sixth biconcave lens, a seventh cemented doublet, an eighth cemented doublet, and a ninth biconvex lens.
4. The industrial lens with large field of view and high resolution front stop of claim 3, wherein said third cemented doublet is composed of an object-side biconvex lens cemented with an image-side biconcave lens, said fifth cemented doublet is composed of an object-side negative meniscus lens cemented with an image-side positive meniscus lens, said seventh cemented doublet is composed of an object-side negative meniscus lens cemented with an image-side positive meniscus lens, and said eighth cemented doublet is composed of an object-side biconcave lens cemented with an image-side biconvex lens.
5. The industrial lens with large field of view and high resolution front stop of claim 1, wherein said focusing lens group comprises a tenth biconvex lens, an eleventh biconic lens, a twelfth biconic lens, a thirteenth biconic lens, a fourteenth biconic lens, and a fifteenth biconic lens.
6. The industrial lens with large field of view and high resolution front stop of claim 5, wherein said eleventh cemented doublet is composed of an object-side double convex lens cemented with an image-side double concave lens, said twelfth cemented doublet is composed of an object-side double convex lens cemented with an image-side negative meniscus lens, said thirteenth cemented doublet is composed of an object-side negative meniscus lens cemented with an image-side double convex lens, and said fourteenth cemented doublet is composed of an object-side positive meniscus lens cemented with an image-side negative meniscus lens.
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Cited By (3)
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| CN114488485A (en) * | 2022-02-14 | 2022-05-13 | 合肥埃科光电科技股份有限公司 | Large-target-surface wide-angle low-distortion industrial lens of f22mm |
| CN115437125A (en) * | 2022-08-22 | 2022-12-06 | 福建福光股份有限公司 | Ultra-wide-angle optical system with preposed diaphragm and imaging method thereof |
| CN116299971A (en) * | 2023-03-02 | 2023-06-23 | 广州长步道光学科技有限公司 | High Wen Jingtou of wide angle high resolution |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5696633A (en) * | 1995-03-02 | 1997-12-09 | Nikon Corporation | Varifocal lens |
| US5920426A (en) * | 1997-11-20 | 1999-07-06 | Panavision, Inc. | Telescopic viewfinder optical system |
| US5978152A (en) * | 1996-04-10 | 1999-11-02 | Matsushita Electric Industrial Co., Ltd. | Zoom lens system |
| JP2000227549A (en) * | 1999-02-05 | 2000-08-15 | Mamiya Op Co Ltd | Zoom lens |
| US20060164540A1 (en) * | 2005-01-24 | 2006-07-27 | Yasuaki Kayanuma | Zoom lens system and camera having the same |
| CN104977701A (en) * | 2015-07-01 | 2015-10-14 | 中国科学院长春光学精密机械与物理研究所 | Zoom lens |
| KR20170073883A (en) * | 2015-12-21 | 2017-06-29 | 주식회사 삼양옵틱스 | Lens system and optical device comprising the same |
| JP2017167327A (en) * | 2016-03-16 | 2017-09-21 | 株式会社シグマ | Inner-focus optical system |
| US20170343780A1 (en) * | 2016-05-26 | 2017-11-30 | Hanwha Techwin Co., Ltd. | Zoom lens system |
| US20180299657A1 (en) * | 2017-04-17 | 2018-10-18 | Panasonic Intellectual Property Management Co., Ltd. | Imaging optical system, imaging apparatus, and camera system |
| CN108683342A (en) * | 2018-05-08 | 2018-10-19 | 深圳市日联科技有限公司 | A kind of more voltage multiplying rectifier devices, more voltage doubling rectifing circuits and its control method |
| CN109307927A (en) * | 2018-11-16 | 2019-02-05 | 珠海博明软件有限公司 | A kind of double-view field doubly telecentric camera lens of built-in coaxial illumination |
| CN110879478A (en) * | 2019-11-28 | 2020-03-13 | 四川大学 | Integrated imaging 3D display device based on compound lens array |
| CN112305716A (en) * | 2020-11-24 | 2021-02-02 | 东莞埃科思科技有限公司 | Lens and structured light projection module |
| CN112666692A (en) * | 2020-12-22 | 2021-04-16 | 福建福光股份有限公司 | Large-zoom-ratio ultra-long-focal-length high-definition fog-penetrating lens and imaging method thereof |
| CN112666691A (en) * | 2020-12-22 | 2021-04-16 | 福建福光股份有限公司 | Medium-long-focus low-light-level lens with wide waveband and large image surface and imaging method thereof |
| US20210247596A1 (en) * | 2018-05-18 | 2021-08-12 | Nikon Corporation | Optical system, optical apparatus, and method of manufacturing optical system |
-
2022
- 2022-01-10 CN CN202210023411.7A patent/CN114488479B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5696633A (en) * | 1995-03-02 | 1997-12-09 | Nikon Corporation | Varifocal lens |
| US5978152A (en) * | 1996-04-10 | 1999-11-02 | Matsushita Electric Industrial Co., Ltd. | Zoom lens system |
| US5920426A (en) * | 1997-11-20 | 1999-07-06 | Panavision, Inc. | Telescopic viewfinder optical system |
| JP2000227549A (en) * | 1999-02-05 | 2000-08-15 | Mamiya Op Co Ltd | Zoom lens |
| US20060164540A1 (en) * | 2005-01-24 | 2006-07-27 | Yasuaki Kayanuma | Zoom lens system and camera having the same |
| CN104977701A (en) * | 2015-07-01 | 2015-10-14 | 中国科学院长春光学精密机械与物理研究所 | Zoom lens |
| KR20170073883A (en) * | 2015-12-21 | 2017-06-29 | 주식회사 삼양옵틱스 | Lens system and optical device comprising the same |
| JP2017167327A (en) * | 2016-03-16 | 2017-09-21 | 株式会社シグマ | Inner-focus optical system |
| US20170343780A1 (en) * | 2016-05-26 | 2017-11-30 | Hanwha Techwin Co., Ltd. | Zoom lens system |
| US20180299657A1 (en) * | 2017-04-17 | 2018-10-18 | Panasonic Intellectual Property Management Co., Ltd. | Imaging optical system, imaging apparatus, and camera system |
| CN108683342A (en) * | 2018-05-08 | 2018-10-19 | 深圳市日联科技有限公司 | A kind of more voltage multiplying rectifier devices, more voltage doubling rectifing circuits and its control method |
| US20210247596A1 (en) * | 2018-05-18 | 2021-08-12 | Nikon Corporation | Optical system, optical apparatus, and method of manufacturing optical system |
| CN109307927A (en) * | 2018-11-16 | 2019-02-05 | 珠海博明软件有限公司 | A kind of double-view field doubly telecentric camera lens of built-in coaxial illumination |
| CN110879478A (en) * | 2019-11-28 | 2020-03-13 | 四川大学 | Integrated imaging 3D display device based on compound lens array |
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