CN101871746A - Optical system of sighting telescope for portable gun - Google Patents
Optical system of sighting telescope for portable gun Download PDFInfo
- Publication number
- CN101871746A CN101871746A CN 201010207065 CN201010207065A CN101871746A CN 101871746 A CN101871746 A CN 101871746A CN 201010207065 CN201010207065 CN 201010207065 CN 201010207065 A CN201010207065 A CN 201010207065A CN 101871746 A CN101871746 A CN 101871746A
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- CN
- China
- Prior art keywords
- optical system
- plastic aspherical
- aspherical element
- aspheric surface
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/38—Telescopic sights specially adapted for smallarms or ordnance; Supports or mountings therefor
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Telescopes (AREA)
- Lenses (AREA)
Abstract
The invention discloses an optical system of a sighting telescope for a portable gun, comprising an objective set, a transferring lens set and an eyepiece set which are successively arranged from the object side to the image side, wherein the objective set comprises a plastic aspheric surface lens, and the plastic aspheric surface lens comprises an aspheric surface and a diffraction surface. On the premise of ensuring optical quality, the invention reduces the amount of objective set lenses and lowers the weight and the cost of the whole system.
Description
Technical field
The present invention relates to a kind of sighting telescope optical system, particularly a kind of optical system of riflescope.
Background technology
The riflescope of the dual-use band side accent that uses both at home and abroad at present, the optical system that it adopts, also all be that objective lens, image rotation lenses group and eyepiece group are formed, its objective lens all is made up of glass lens, concrete structure is that a cemented doublet group and a single element lens are formed, perhaps a cemented doublet group and two single element lens are formed, and adopt the cemented doublet group to be mainly used in the aberration that reduces object lens, and a single element lens is mainly used in the interior focusing that rifle is taken aim at system.Because objective lens all adopts glass material, and aperture of objective lens is relatively large, so the volume and weight of object lens is all bigger, using and carry and bring certain inconvenience to gun sight.
Summary of the invention
Technical problem to be solved by this invention is: a kind of optical system of light riflescope is provided, under the prerequisite that guarantees optical quality, has reduced objective lens eyeglass quantity, reduced the weight and the cost of whole system.
For solving the problems of the technologies described above, technical scheme of the present invention is: the optical system of light riflescope, arrive the picture side direction along the thing side, comprise the objective lens, image rotation lenses group and the eyepiece group that are arranged in order setting, described objective lens comprises a plastic aspherical element eyeglass, and described plastic aspherical element eyeglass comprises an aspheric surface and a diffraction surfaces.
As a kind of optimized technical scheme, to the picture side direction, first face of described plastic aspherical element eyeglass is an aspheric surface along the thing side, and second face is diffraction surfaces.
As another kind of optimized technical scheme, to the picture side direction, first face of described plastic aspherical element eyeglass is a diffraction surfaces along the thing side, and second face is aspheric surface.
As a kind of optimized technical scheme, described objective lens also comprises a glass lens sheet, and to the picture side direction, described plastic aspherical element eyeglass and described glass lens sheet are arranged in order along the thing side.
As a kind of optimized technical scheme, the outer surface of described plastic aspherical element eyeglass has the plated film layer.
After having adopted technique scheme, the invention has the beneficial effects as follows:
1. among the present invention, objective lens comprises a plastic aspherical element eyeglass, and described plastic aspherical element eyeglass comprises an aspheric surface and a diffraction surfaces.Described objective lens can also comprise a glass lens sheet that is used to focus, and to the picture side direction, described plastic aspherical element eyeglass and described glass lens sheet are arranged in order along the thing side.The present invention can utilize aspheric surface, diffraction surfaces and the glass lens sheet of plastic aspherical element eyeglass to come aberration correction, substitutes traditional sighting telescope optical system and utilizes the incompatible aberration correction of some set of lenses; The present invention utilizes the diffraction surfaces of aspherical lens to come correcting chromatic aberration, substitutes traditional sighting telescope optical system and utilizes the cemented doublet of the lens composition of some different abbe numbers to come correcting chromatic aberration, has guaranteed excellent optical performance.
2. the present invention adopts two eyeglasses to replace the objective lens rifle of three of tradition or four eyeglass compositions to take aim at system, the weight and the cost of system have been reduced, in addition, can adopt injection molding process to produce the plastic aspherical element eyeglass, not only reduced foozle, promote the product optical property, and simplified the eyeglass production procedure, also can reduce the eyeglass cost.
3. the present invention has the plated film layer at the outer surface of plastic aspherical element eyeglass, improved the adaptive capacity to environment of glass lens, satisfy the environment for use needs of gun sight fully, avoided because environmental factor reduces the imaging performance of gun sight such as influences such as temperature, humidity.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is the optical system diagram of the embodiment of the invention.
Among the figure: 1. objective lens, 11. plastic aspherical element eyeglasses, 12. glass lens sheets, 2. image rotation lenses group, 3. eyepiece group, A. aspheric surface, B. diffraction surfaces.
The specific embodiment
As shown in drawings, a kind of light inspection optical system of gun sight.Present embodiment is the situation that applies the present invention to the 3-12x50SF riflescope.
To the picture side direction, this optical system comprises objective lens 1, image rotation lenses group 2 and the eyepiece group 3 that is arranged in order setting along the thing side.
Described objective lens 1 comprises a plastic aspherical element eyeglass 11, and described plastic aspherical element eyeglass 11 comprises an aspheric surface and a diffraction surfaces.Described objective lens can also comprise a glass lens sheet 12, and to the picture side direction, described plastic aspherical element eyeglass 11 and described glass lens sheet 12 are arranged in order along the thing side.What glass lens sheet 12 adopted is the plano-concave simple lens.Image rotation lenses group 2 and eyepiece group 3 are existing known technology, and present embodiment is no longer done specific descriptions.
In the present embodiment, to the picture side direction, first face of described plastic aspherical element eyeglass 11 is aspheric surface A along the thing side, and second face is diffraction surfaces B.Because the position of aspheric surface and diffraction surfaces can exchange, therefore, to the picture side direction, also can be: first face of plastic aspherical element eyeglass 11 be a diffraction surfaces along the thing side, and second face is aspheric surface.
Because used eyeglass in the general camera lens, can regard the part of spheroid as, its surface curvature is fixed, and optically inevitably has certain defects of vision, produces spherical aberration.Aspherical mirror develops for correcting spherical aberration, aspheric surface refers to quadratic surfaces such as ellipsoid, parabola, hyperboloid and high order curved surface more, aspherical lens can allow paraxial rays overlap aberration correction with the formed focal position of axial ray far away by revising the curvature of lens surface.And diffraction surfaces is to produce diffraction grating at lens surface, utilizes many seam diffraction and interference effect, and the light beam that is mapped on the grating is carried out chromatic dispersion by the difference of wavelength, focuses on and formation spectrum through the imaging mirror again, has the function of good correcting chromatic aberration.
Therefore, the present invention can utilize aspheric surface A, diffraction surfaces B and the glass lens sheet 12 of plastic aspherical element eyeglass to come aberration correction, substitutes traditional sighting telescope optical system and utilizes the incompatible aberration correction of some set of lenses; Utilize the diffraction surfaces B of aspherical lens 11 to come correcting chromatic aberration, substitute traditional sighting telescope optical system and utilize the cemented doublet of the lens composition of some different abbe numbers to come correcting chromatic aberration, guaranteed excellent optical performance.
The aspheric surface A of plastic aspherical element eyeglass 11 and diffraction surfaces B are once molding formed by two moulds respectively, have reduced foozle like this, have promoted the product optical property.The manufacture process of the balsaming lens in the tradition sighting telescope optical system objective lens is a relative complex, yet relatively, plastic aspherical element lens 11 among the present invention are plastic materials, can produce in enormous quantities by injection mo(u)lding, and injection molding process is fairly simple, and manufacturing cost also can be reduced by production in enormous quantities.
In addition, as required, can be at the outer surface plated film of plastic aspherical element eyeglass 11, make it have the plated film layer, the plated film layer specifically can be hard membrane layer or town's moisture film, in order to improve the adaptive capacity to environment of glass lens, satisfy the environment for use needs of gun sight, avoided because environmental factor reduces the imaging performance of gun sight such as influences such as temperature, humidity.
The foregoing description only is giving an example of the specific embodiment of the invention, and protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present invention is all within protection scope of the present invention.
Claims (5)
1. the optical system of light riflescope, arrive the picture side direction along the thing side, comprise the objective lens, image rotation lenses group and the eyepiece group that are arranged in order setting, it is characterized in that: described objective lens comprises a plastic aspherical element eyeglass, and described plastic aspherical element eyeglass comprises an aspheric surface and a diffraction surfaces.
2. the optical system of light riflescope as claimed in claim 1 is characterized in that: to the picture side direction, first face of described plastic aspherical element eyeglass is an aspheric surface along the thing side, and second face is diffraction surfaces.
3. the optical system of light riflescope as claimed in claim 1 is characterized in that: to the picture side direction, first face of described plastic aspherical element eyeglass is a diffraction surfaces along the thing side, and second face is aspheric surface.
4. as the optical system of claim 1,2 or 3 described light riflescopes, it is characterized in that: described objective lens also comprises a glass lens sheet, and to the picture side direction, described plastic aspherical element eyeglass and described glass lens sheet are arranged in order along the thing side.
5. the optical system of light riflescope as claimed in claim 4, it is characterized in that: the outer surface of described plastic aspherical element eyeglass has the plated film layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207065 CN101871746A (en) | 2010-06-12 | 2010-06-12 | Optical system of sighting telescope for portable gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010207065 CN101871746A (en) | 2010-06-12 | 2010-06-12 | Optical system of sighting telescope for portable gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101871746A true CN101871746A (en) | 2010-10-27 |
Family
ID=42996751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010207065 Pending CN101871746A (en) | 2010-06-12 | 2010-06-12 | Optical system of sighting telescope for portable gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101871746A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717624A (en) * | 2016-03-03 | 2016-06-29 | 麒麟光学仪器（南通）有限公司 | Novel optical sighting telescope |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298500Y (en) * | 1997-09-29 | 1998-11-25 | 国营第二三八厂 | Multifunction gun sighting device |
| JP2000056220A (en) * | 1998-06-03 | 2000-02-25 | Konica Corp | Variable power finder |
| CN1310329A (en) * | 2000-02-25 | 2001-08-29 | 株式会社汉康商事 | Sighting telescope |
| US20050241210A1 (en) * | 2004-02-11 | 2005-11-03 | Vitronics Inc. | Dual sight scope system and method |
| CN101211006A (en) * | 2007-12-21 | 2008-07-02 | 中国科学院上海技术物理研究所 | Refraction-diffraction mixed telescope optical system |
| CN101614506A (en) * | 2009-07-17 | 2009-12-30 | 南通蓬盛机械有限公司 | A kind of sight |
| US7672045B2 (en) * | 2007-08-23 | 2010-03-02 | Goodrich Corporation | Compact two-element infrared objective lens and IR or thermal sight for weapon having viewing optics |
| CN201715944U (en) * | 2010-06-12 | 2011-01-19 | 山东亿能光学仪器股份有限公司 | Collimator optics system for light gun |
-
2010
- 2010-06-12 CN CN 201010207065 patent/CN101871746A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298500Y (en) * | 1997-09-29 | 1998-11-25 | 国营第二三八厂 | Multifunction gun sighting device |
| JP2000056220A (en) * | 1998-06-03 | 2000-02-25 | Konica Corp | Variable power finder |
| CN1310329A (en) * | 2000-02-25 | 2001-08-29 | 株式会社汉康商事 | Sighting telescope |
| US20050241210A1 (en) * | 2004-02-11 | 2005-11-03 | Vitronics Inc. | Dual sight scope system and method |
| US7672045B2 (en) * | 2007-08-23 | 2010-03-02 | Goodrich Corporation | Compact two-element infrared objective lens and IR or thermal sight for weapon having viewing optics |
| CN101211006A (en) * | 2007-12-21 | 2008-07-02 | 中国科学院上海技术物理研究所 | Refraction-diffraction mixed telescope optical system |
| CN101614506A (en) * | 2009-07-17 | 2009-12-30 | 南通蓬盛机械有限公司 | A kind of sight |
| CN201715944U (en) * | 2010-06-12 | 2011-01-19 | 山东亿能光学仪器股份有限公司 | Collimator optics system for light gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717624A (en) * | 2016-03-03 | 2016-06-29 | 麒麟光学仪器（南通）有限公司 | Novel optical sighting telescope |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101027 |