CN106918902A - A kind of flat field telescopic optical system - Google Patents
A kind of flat field telescopic optical system Download PDFInfo
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- CN106918902A CN106918902A CN201710310324.9A CN201710310324A CN106918902A CN 106918902 A CN106918902 A CN 106918902A CN 201710310324 A CN201710310324 A CN 201710310324A CN 106918902 A CN106918902 A CN 106918902A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 210000001747 pupil Anatomy 0.000 claims description 25
- 230000000007 visual effect Effects 0.000 claims description 9
- 238000009738 saturating Methods 0.000 claims description 7
- 230000007786 learning performance Effects 0.000 claims 3
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000887 face Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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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
-
- 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
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Astronomy & Astrophysics (AREA)
- Lenses (AREA)
- Telescopes (AREA)
Abstract
The invention provides a kind of flat field telescopic optical system, including the lens of object lens first, object lens balsaming lens, object lens focusing lens, half pentaprism, roof prism, the lens of field lens first, the lens of field lens second, eyepiece real image face position, the lens of eyepiece first, eyepiece balsaming lens, the lens of eyepiece the 4th, it is characterised in that：By light path order its by the mirror of object lens first, object lens balsaming lens, object lens focusing lens, half pentaprism, roof prism, the lens of field lens first, the lens of field lens second, the lens of eyepiece first, eyepiece balsaming lens, the lens of eyepiece the 4th are constituted, and by rational Optical System Design the binoculars of 56mm bores can be made to reach full filed and distorted less than 3%.
Description
Technical field
The present invention relates to physics class, optical element or optical system, espespecially a kind of flat field telescopic optical system.
Background technology
Flat field concept traditional in telescope only requires correction curvature of field astigmatism, and flat field telescope concept in recent years except
It is required that outside correction curvature of field astigmatism, also being required to distortion, the distortion of full filed will be corrected to 3% or so or smaller, the country substantially
Substantially there was only 32mm, 42mm, 50mm bore, 56mm mouthfuls with the flat field telescope of existing use benhain prism on international market
The flat field telescope of the use benhain prism in footpath currently there are no, and use the 56mm Aperture Telescopes exit pupil diameter ratio of benhain prism
Telescope using other bores of the same multiplying power of benhain prism is big, human eye by look in the distance sem observation when it is more comfortable, while
The resolution ratio that can be reached in theory is also higher.
The content of the invention
For above-mentioned technical problem, the invention provides a kind of flat field telescopic optical system, the system design is rationally advised
Model, it is easy to use, the binoculars of 56mm bores can be made to reach full filed distortion by rational Optical System Design and be less than
3%。
In order to solve the above technical problems, saturating the invention provides a kind of flat field telescopic optical system, including object lens first
Mirror, object lens balsaming lens, object lens focusing lens, half pentaprism, roof prism, the lens of field lens first, the lens of field lens second, eyepiece reality
Image planes position, the lens of eyepiece first, eyepiece balsaming lens, the lens of eyepiece the 4th, it is characterised in that：By light path order its by object lens
First mirror, object lens balsaming lens, object lens focusing lens, half pentaprism, roof prism, the lens of field lens first, the lens of field lens second, mesh
The lens of mirror first, eyepiece balsaming lens, the lens of eyepiece the 4th composition；
The wherein mirror of object lens first, object lens balsaming lens, object lens of the object lens focusing microscope group into system；
Wherein lens of eyepiece first, eyepiece balsaming lens, the lens of eyepiece the 4th constitute the eyepiece of system；
Wherein lens of eyepiece first, eyepiece balsaming lens, the real image face position of the eyepiece of the lens of eyepiece the 4th composition system；
Wherein half pentaprism side thickness 22mm, roof prism side thickness 20mm, the optical axis between half pentaprism and roof prism has 4.5mm
Translation；
Wherein flat field telescopic optical system be respectively the telescope of 8X56, the telescope of 10X56, the telescope of 12X56,
The telescope of 15X56.
As a further improvement on the present invention, the optics of telescope performance parameter of the 8X56 is, multiplying power：8 times, visual field：
7 °, exit pupil diameter：7mm, distance of exit pupil：28mm, nearest focussing distance 3m, the mirror of object lens first, object lens balsaming lens, object lens focusing
The objective focal length of microscope group synthesis is 179.8mm, by the lens of eyepiece first, eyepiece balsaming lens, the mesh of the lens of eyepiece the 4th composition
The focal length of mirror is 31.1mm, by the mirror of object lens first, object lens balsaming lens, object lens focusing lens, half pentaprism, roof prism, field lens
First lens, the focal length after the lens combination of field lens second is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 10X56 is, multiplying power：9.88 times, depending on
：6.5 °, exit pupil diameter：5.6mm, distance of exit pupil：22.1mm, nearest focussing distance 3m, the mirror of object lens first, object lens are glued thoroughly
Mirror, the objective focal length of object lens focusing microscope group synthesis is 179.8mm, and by the lens of eyepiece first, eyepiece balsaming lens, eyepiece the 4th is saturating
Microscope group into eyepiece focal length be 25.25mm, by the mirror of object lens first, object lens balsaming lens, object lens focusing lens, half pentaprism, room
Ridge prism, the lens of field lens first, the focal length after the lens combination of field lens second is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 12X56 is, multiplying power：12 times, depending on
：5.45 °, exit pupil diameter：4.6mm, distance of exit pupil：18.5mm, nearest focussing distance 3m, the mirror of object lens first, object lens are glued thoroughly
Mirror, the objective focal length of object lens focusing microscope group synthesis is 179.8mm, and by the lens of eyepiece first, eyepiece balsaming lens, eyepiece the 4th is saturating
Microscope group into eyepiece focal length be 20.87mm, by the mirror of object lens first, object lens balsaming lens, object lens focusing lens, half pentaprism, room
Ridge prism, the lens of field lens first, the focal length after the lens combination of field lens second is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 15X56 is, multiplying power：14.61 times,
Visual field：4.5 °, exit pupil diameter：3.8mm, distance of exit pupil：18.22mm, nearest focussing distance 3m, the mirror of object lens first, object lens are glued
Lens, the objective focal length of object lens focusing microscope group synthesis is 219.5mm, by the lens of eyepiece first, eyepiece balsaming lens, eyepiece the 4th
The focal length of the eyepiece of lens composition is 20.87mm, by the mirror of object lens first, object lens balsaming lens, and object lens focusing lens, half pentaprism,
Roof prism, the lens of field lens first, the focal length after the lens combination of field lens second is 304.9mm.
The present invention has the advantages that compared with prior art：
1st, rational Optical System Design, is reached entirely using the binoculars of the 56mm bores of benhain prism during the present invention passes through
Visual field distortion is less than 3%, and the lens of object lens first use a piece of biconvex lens, can shorten optical system overall length, advantageously reduce product
Volume and weight；
2nd, object lens balsaming lens is using the bright H-FK61ED materials in Chengdu, H-ZF2 dense flint combinations of materials, then with object lens first
Mirror, object lens focusing lens are used cooperatively, and can effectively correct the aperture aberration of object lens；
3rd, the optical axis between half pentaprism and roof prism has the translation of 4.5mm, and this is primarily to ensure eyepiece side's human eye
When interpupillary distance is adjusted in the range of 58mm-74mm, in mesh side during minimum interpupillary distance 58mm object lens side or so two structure
Part will not mutually produce interference；
4th, the lens of eyepiece first, the lens of eyepiece second, the lens of eyepiece the 3rd composition eyepiece real image face position mirror second of leaving the theatre it is saturating
More than 5 diopters, so in eye-observation, the defect on the lens of field lens second cannot see that substantially on the rear surface of mirror, this
Sample just reduces the processing request to the lens of field lens second, and knot has saved cost, while the ash that falls during final assembly on field lens, dirty point
Deng assembling when cause that yields is low to reprocess many production bottlenecks and be also resolved.
Brief description of the drawings
Fig. 1 is a kind of flat field telescopic optical system structural representation；
Fig. 2 is a kind of aperture chromaticity difference diagram of object lens set by flat field telescopic optical system；
Fig. 3 is the optical axis translation schematic diagram between half pentaprism and roof prism set by a kind of flat field telescopic optical system；
Fig. 4 is double-barrel structure index path set by a kind of flat field telescopic optical system；
Fig. 5 is a kind of flat field telescopic optical system curvature of field and distortion figure；
The lens of 1- object lens first in figure, 2- object lens balsaming lens, 3- object lens focusing lenses, the pentaprisms of 4- half, 5- roof prisms, 6-
The lens of mirror first, the lens of 7- field lenses second, 8- eyepiece real image faces position, the lens of 9- eyepieces first, 10- eyepiece balsaming lens, 11-
The lens of eyepiece the 4th.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are not under the premise of creative work is made, and what is obtained is every other
Embodiment, belongs to the scope of the present invention.
Embodiment 1
The first lens of a kind of flat field telescopic optical system, including object lens as shown in the figure 1, object lens balsaming lens 2, object lens focusing lens
3, half pentaprism 4, roof prism 5, the first lens of field lens 6, the second lens of field lens 7, eyepiece real image face position 8, eyepiece first is saturating
Mirror 9, eyepiece balsaming lens 10, the lens 11 of eyepiece the 4th, it is characterised in that：It is the first mirror of object lens 1 by light path order, object lens are glued
Lens 2, object lens focusing lens 3, half pentaprism 4, roof prism 5, the first lens of field lens 6, the second lens of field lens 7, eyepiece first is saturating
Mirror 9, eyepiece balsaming lens 10, the lens 11 of eyepiece the 4th are constituted；
Wherein the first mirror of object lens 1, object lens balsaming lens 2, object lens focusing lens 3 constitutes the object lens of system；
Wherein the first lens of eyepiece 9, eyepiece balsaming lens 10, the 4th lens of eyepiece 11 constitute the eyepiece of system；
Wherein the first lens of eyepiece 9, eyepiece balsaming lens 10, the real image face position of the eyepiece of the composition system of the 4th lens of eyepiece 11
8；
The wherein side of half pentaprism 4 thickness 22mm, the side of roof prism 5 thickness 20mm, the optical axis between half pentaprism 4 and roof prism 5 has
The translation of 4.5mm；
Wherein flat field telescopic optical system be respectively the telescope of 8X56, the telescope of 10X56, the telescope of 12X56,
The telescope of 15X56.
As a further improvement on the present invention, the optics of telescope performance parameter of the 8X56 is, multiplying power：8 times, visual field：
7 °, exit pupil diameter：7mm, distance of exit pupil：28mm, nearest focussing distance 3m, the first mirror of object lens 1, object lens balsaming lens 2, object lens are adjusted
The objective focal length that burnt mirror 3 is combined into is 179.8mm, by the first lens of eyepiece 9, eyepiece balsaming lens 10, the lens 11 of eyepiece the 4th
The focal length of the eyepiece of composition is 31.1mm, by the first mirror of object lens 1, object lens balsaming lens 2, object lens focusing lens 3, half pentaprism 4, room
Ridge prism 5, the first lens of field lens 6, the focal length after the second lens of field lens 7 are combined is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 10X56 is, multiplying power：9.88 times, depending on
：6.5 °, exit pupil diameter：5.6mm, distance of exit pupil：22.1mm, nearest focussing distance 3m, the first mirror of object lens 1, object lens are glued thoroughly
Mirror 2, the objective focal length that object lens focusing lens 3 is combined into is 179.8mm, by the first lens of eyepiece 9, eyepiece balsaming lens 10, eyepiece
The focal length of the eyepiece of the composition of the 4th lens 11 is 25.25mm, by the first mirror of object lens 1, object lens balsaming lens 2, and object lens focusing lens 3,
Half pentaprism 4, roof prism 5, the first lens of field lens 6, the focal length after the second lens of field lens 7 are combined is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 12X56 is, multiplying power：12 times, depending on
：5.45 °, exit pupil diameter：4.6mm, distance of exit pupil：18.5mm, nearest focussing distance 3m, the first mirror of object lens 1, object lens are glued thoroughly
Mirror 2, the objective focal length that object lens focusing lens 3 is combined into is 179.8mm, by the first lens of eyepiece 9, eyepiece balsaming lens 10, eyepiece
The focal length of the eyepiece of the composition of the 4th lens 11 is 20.87mm, by the first mirror of object lens 1, object lens balsaming lens 2, and object lens focusing lens 3,
Half pentaprism 4, roof prism 5, the first lens of field lens 6, the focal length after the second lens of field lens 7 are combined is 249.5mm.
As a further improvement on the present invention, the optics of telescope performance parameter of the 15X56 is, multiplying power：14.61 times,
Visual field：4.5 °, exit pupil diameter：3.8mm, distance of exit pupil：18.22mm, nearest focussing distance 3m, the first mirror of object lens 1, object lens are glued
Lens 2, the objective focal length that object lens focusing lens 3 is combined into is 219.5mm, by the first lens of eyepiece 9, eyepiece balsaming lens 10, mesh
The focal length of the eyepiece of the composition of the 4th lens of mirror 11 is 20.87mm, by the first mirror of object lens 1, object lens balsaming lens 2, object lens focusing lens
3, half pentaprism 4, roof prism 5, the first lens of field lens 6, the focal length after the second lens of field lens 7 are combined is 304.9mm.
The present invention rational Optical System Design in passing through, is reached using the binoculars of the 56mm bores of benhain prism
Full filed distortion is less than 3%, and the lens of object lens first use a piece of biconvex lens, can shorten optical system overall length, advantageously reduce product
The volume and weight of product, object lens balsaming lens using the bright H-FK61ED materials in Chengdu, H-ZF2 dense flint combinations of materials, then
Used cooperatively with the mirror of object lens first, object lens focusing lens, can effectively correct the aperture aberration of object lens, half pentaprism and roof prism
Between optical axis have the translation of 4.5mm, this is primarily to ensure the interpupillary distance of eyepiece side's human eye in the range of 58mm-74mm
When adjustment, in mesh side, the structural member of object lens side or so two will not mutually produce interference, eyepiece during minimum interpupillary distance 58mm
One lens, the lens of eyepiece second, the lens of eyepiece the 3rd composition eyepiece real image face position leave the theatre the lens of mirror second rear surface surpass
5 diopters are crossed, so in eye-observation, the defect on the lens of field lens second cannot see that substantially, this reduces right
The processing request of the lens of field lens second, knot has saved cost, while the ash that falls during final assembly on field lens, dirty point etc. are caused when assembling
Yields is low to reprocess many production bottlenecks and is also resolved.
Claims (5)
1. a kind of flat field telescopic optical system, including object lens first lens (1), object lens balsaming lens (2), object lens focusing lens
(3), half pentaprism (4), roof prism (5), the lens of field lens first (6), the lens of field lens second (7), eyepiece real image face position
(8), the lens of eyepiece first (9), eyepiece balsaming lens (10), the lens (11) of eyepiece the 4th, it is characterised in that：It is by light path order
The mirror of object lens first (1), object lens balsaming lens (2), object lens focusing lens (3), half pentaprism (4), roof prism (5), field lens first
Lens (6), the lens of field lens second (7), the lens of eyepiece first (9), eyepiece balsaming lens (10), eyepiece the 4th lens (11) group
Into；
The wherein mirror of object lens first (1), object lens balsaming lens (2), object lens focusing lens (3) constitutes the object lens of system；
Wherein lens of eyepiece first (9), eyepiece balsaming lens (10), the lens (11) of eyepiece the 4th constitute the eyepiece of system；
Wherein lens of eyepiece first (9), eyepiece balsaming lens (10), the real image of the eyepiece of the lens (11) of eyepiece the 4th composition system
Face position（8）；
Wherein half pentaprism (4) side thickness 22mm, roof prism (5) side thickness 20mm, between half pentaprism (4) and roof prism (5)
Optical axis have the translation of 4.5mm；
Wherein flat field telescopic optical system be respectively the telescope of 8X56, the telescope of 10X56, the telescope of 12X56,
The telescope of 15X56.
2. a kind of flat field telescopic optical system according to claim 1, it is characterised in that：The optics of telescope of the 8X56
Performance parameter is, multiplying power：8 times, visual field：7 °, exit pupil diameter：7mm, distance of exit pupil：28mm, nearest focussing distance 3m, object lens
One mirror (1), object lens balsaming lens (2), the objective focal length that object lens focusing lens (3) is combined into is 179.8mm, by the lens of eyepiece first
(9), eyepiece balsaming lens (10), the focal length of the eyepiece of the lens (11) of eyepiece the 4th composition is 31.1mm, by the mirror of object lens first
(1), object lens balsaming lens (2), object lens focusing lens (3), half pentaprism (4), roof prism (5), the lens of field lens first (6), field
Focal length after the lens of mirror second (7) combination is 249.5mm.
3. a kind of flat field telescopic optical system according to claim 1, it is characterised in that：The telescope light of the 10X56
Learning performance parameter is, multiplying power：9.88 times, visual field：6.5 °, exit pupil diameter：5.6mm, distance of exit pupil：22.1mm, focalizes recently
From 3m, the mirror of object lens first (1), object lens balsaming lens (2), the objective focal length that object lens focusing lens (3) is combined into is 179.8mm, by
The lens of eyepiece first (9), eyepiece balsaming lens (10), the focal length of the eyepiece of the lens (11) of eyepiece the 4th composition is 25.25mm, by
The mirror of object lens first (1), object lens balsaming lens (2), object lens focusing lens (3), half pentaprism (4), roof prism (5), field lens first
Lens (6), the focal length after the lens of field lens second (7) combination is 249.5mm.
4. a kind of flat field telescopic optical system according to claim 1, it is characterised in that：The telescope light of the 12X56
Learning performance parameter is, multiplying power：12 times, visual field：5.45 °, exit pupil diameter：4.6mm, distance of exit pupil：18.5mm, nearest focussing distance
3m, the mirror of object lens first (1), object lens balsaming lens (2), the objective focal length that object lens focusing lens (3) is combined into is 179.8mm, by mesh
The lens of mirror first (9), eyepiece balsaming lens (10), the focal length of the eyepiece of the lens (11) of eyepiece the 4th composition is 20.87mm, by thing
The mirror of mirror first (1), object lens balsaming lens (2), object lens focusing lens (3), half pentaprism (4), roof prism (5), field lens first is saturating
Mirror (6), the focal length after the lens of field lens second (7) combination is 249.5mm.
5. a kind of flat field telescopic optical system according to claim 1, it is characterised in that：The telescope light of the 15X56
Learning performance parameter is, multiplying power：14.61 times, visual field：4.5 °, exit pupil diameter：3.8mm, distance of exit pupil：18.22mm, recently focusing
Apart from 3m, the mirror of object lens first (1), object lens balsaming lens (2), the objective focal length that object lens focusing lens (3) is combined into is 219.5mm,
By the lens of eyepiece first (9), eyepiece balsaming lens (10), the focal length of the eyepiece of the lens (11) of eyepiece the 4th composition is 20.87mm,
By the mirror of object lens first (1), object lens balsaming lens (2), object lens focusing lens (3), half pentaprism (4), roof prism (5), field lens
One lens (6), the focal length after the lens of field lens second (7) combination is 304.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310324.9A CN106918902A (en) | 2017-05-05 | 2017-05-05 | A kind of flat field telescopic optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310324.9A CN106918902A (en) | 2017-05-05 | 2017-05-05 | A kind of flat field telescopic optical system |
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| Publication Number | Publication Date |
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| CN106918902A true CN106918902A (en) | 2017-07-04 |
Family
ID=59568420
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|---|---|---|---|
| CN201710310324.9A Withdrawn CN106918902A (en) | 2017-05-05 | 2017-05-05 | A kind of flat field telescopic optical system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884777A (en) * | 2019-02-22 | 2019-06-14 | 华中光电技术研究所（中国船舶重工集团有限公司第七一七研究所） | A kind of high magnification compact telescopic sight optical system |
| CN112213851A (en) * | 2019-07-11 | 2021-01-12 | 云南汉瑞光学仪器有限公司 | Telescope optical system |
| CN112817139A (en) * | 2019-11-15 | 2021-05-18 | 施华洛世奇光学两合公司 | Binocular telescope |
| CN113504640A (en) * | 2021-06-02 | 2021-10-15 | 云南汉瑞光学仪器有限公司 | Low-distortion binocular optical system |
| CN114442304A (en) * | 2021-12-27 | 2022-05-06 | 湖北华中光电科技有限公司 | Prism telescope optical system with large exit pupil diameter |
| CN116520552A (en) * | 2023-06-30 | 2023-08-01 | 昆明朗特光学仪器有限公司 | Optical system of target observation mirror |
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| CN109884777A (en) * | 2019-02-22 | 2019-06-14 | 华中光电技术研究所（中国船舶重工集团有限公司第七一七研究所） | A kind of high magnification compact telescopic sight optical system |
| CN112213851A (en) * | 2019-07-11 | 2021-01-12 | 云南汉瑞光学仪器有限公司 | Telescope optical system |
| CN112817139A (en) * | 2019-11-15 | 2021-05-18 | 施华洛世奇光学两合公司 | Binocular telescope |
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| CN113504640B (en) * | 2021-06-02 | 2022-08-05 | 云南汉瑞光学仪器有限公司 | Low-distortion binocular optical system |
| CN114442304A (en) * | 2021-12-27 | 2022-05-06 | 湖北华中光电科技有限公司 | Prism telescope optical system with large exit pupil diameter |
| CN116520552B (en) * | 2023-06-30 | 2023-08-25 | 昆明朗特光学仪器有限公司 | Optical system of target observation mirror |
| CN116520552A (en) * | 2023-06-30 | 2023-08-01 | 昆明朗特光学仪器有限公司 | Optical system of target observation mirror |
| CN116560065A (en) * | 2023-07-10 | 2023-08-08 | 云南汉瑞光学仪器有限公司 | Large-view-field telescope optical system |
| CN116560065B (en) * | 2023-07-10 | 2023-09-08 | 云南汉瑞光学仪器有限公司 | Large-view-field telescope optical system |
| CN116990954A (en) * | 2023-08-25 | 2023-11-03 | 昆明汉睿光学仪器有限公司 | Telescope optical system |
| CN116990954B (en) * | 2023-08-25 | 2024-03-19 | 昆明汉睿光学仪器有限公司 | Telescope optical system |
| CN117075324A (en) * | 2023-10-13 | 2023-11-17 | 昆明明汇光学有限公司 | Telescope optical system |
| CN117075324B (en) * | 2023-10-13 | 2023-12-15 | 昆明明汇光学有限公司 | Telescope optical system |
| CN121679884A (en) * | 2026-02-11 | 2026-03-17 | 昆明朗菱光电仪器有限公司 | A small-aperture, large-field-of-view telescope optical system |
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Application publication date: 20170704 |