CN101871747A

CN101871747A - Sighting telescope optical system for gun

Info

Publication number: CN101871747A
Application number: CN 201010207073
Authority: CN
Inventors: 程仕东
Original assignee: SHANDONG AEON OPTICAL Inc
Current assignee: SHANDONG AEON OPTICAL Inc
Priority date: 2010-06-12
Filing date: 2010-06-12
Publication date: 2010-10-27
Anticipated expiration: 2030-06-12
Also published as: CN101871747B

Abstract

The invention discloses a sighting telescope optical system for a gun, comprising an objective lens group, a transferring lens group and an eye lens group which are sequentially arranged from an object side to an image side. The transferring lens group is composed of a first positive lens group, a second positive lens group, a third positive lens group and a fourth positive lens group, wherein, the first positive lens group is arranged fixedly, the second positive lens group and the third positive lens group are arranged movably and the fourth positive lens group is arranged fixedly; and the first positive lens group, the second positive lens group, the third positive lens group and the fourth positive lens group are arranged sequentially from the object side to the image side. The sighting telescope optical system has simple structural design and processing, can obtain larger zoom ratio and relatively larger sighting telescope field of view, and reduce the field angle of the outgoing beam of a transferring system, thus correspondingly decreasing the lens aperture of an eye lens system at the rear end of a zoom system.

Description

Sighting telescope optical system for gun

Technical field

The present invention relates to sighting telescope optical system, particularly a kind of sighting telescope optical system for gun.

Background technology

At present, the domestic and international dual-use gun sight that uses, the optical system that it adopts, it also all is objective lens, image rotation lenses group and eyepiece group are formed, but what its image rotation lenses group adopted is that two traditional positive lens groups move the change traditional classical mode doubly that realizes, wherein first set of lenses of close thing side moves and is used to compensate the image planes drift, moving realization near second set of lenses as side becomes doubly, this change times relay system can satisfy the optical property instructions for use of whole gun sight, but, this traditional change times relay system also has a lot of defectives, generally becoming multiple proportions can not be above 5 times, otherwise will sacrifice the optical property of others, perhaps increase system complexity, realize bringing more manufacturability difficulties to system.

For a change this present situation, U.S. REDFIELD company has developed 5 times of gun sight series that become multiple proportions, adopt higher manufacturing process, it becomes a times relay system and adopts three groups of three-flutes to become times mode, just-just adopt-negative three groups of lens types establishment relay systems, when the location status of set of lenses when low power becomes high power, three set of lenses are by running orbit is mobile simultaneously separately, but adopt the complex structure of the gun sight of this relay system, the visual field optical property is not high, and the design that has restricted this relay system gun sight is promoted and made.

Summary of the invention

Technical problem to be solved by this invention is: a kind of sighting telescope optical system for gun is provided, its structural design and processing is simple, not only can obtain bigger change multiple proportions, obtain relatively large gun sight visual field, and can reduce relay system outgoing beam subtended angle, thereby the corresponding eyepiece system eyeglass bore that reduces the zooming system rear end.

For solving the problems of the technologies described above, technical scheme of the present invention is: sighting telescope optical system for gun, 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 image rotation lenses group comprises first positive lens groups that fixedly installs, mobile second positive lens groups that is provided with and the 3rd positive lens groups and the 4th positive lens groups that fixedly installs; To the picture side direction, described first positive lens groups, described second positive lens groups, described the 3rd positive lens groups and described the 4th positive lens groups are arranged in order along the thing side.

As a kind of optimized technical scheme, described first positive lens groups comprises the first plano-convex single-positive-lens of a slice convex surface towards described eyepiece group; Described second positive lens groups comprises a slice first gummed positive lens; Described the 3rd positive lens groups comprises a slice second gummed positive lens, and the described first gummed positive lens is relative with the convex surface of the described second gummed positive lens; Described the 4th positive lens groups comprises the second plano-convex single-positive-lens of a slice convex surface towards described objective lens.

As a kind of optimized technical scheme, described objective lens is made up of a slice the 3rd gummed positive lens and a slice the 3rd plano-convex single-positive-lens, and described eyepiece group is made up of a slice the 4th gummed positive lens and a slice biconvex single-positive-lens.

After having adopted technique scheme, the invention has the beneficial effects as follows:

1. among the present invention, the image rotation lenses group comprises first positive lens groups that fixedly installs, mobile second positive lens groups that is provided with and the 3rd positive lens groups and the 4th positive lens groups that fixedly installs; To the picture side direction, described first positive lens groups, second positive lens groups, the 3rd positive lens groups and the 4th positive lens groups are arranged in order along the thing side.What therefore, the image rotation lenses group adopted is the portable times relay system that becomes of " just-just-just-just " four set of lenses and middle two set of lenses.The advantage of this optical system is not only to obtain bigger change multiple proportions: can have 5x-6x and become multiple proportions even hypermutation multiple proportions more, obtain relatively large gun sight visual field; And can reduce relay system outgoing beam subtended angle, thereby the corresponding eyepiece system eyeglass bore that reduces the zooming system rear end; In addition, because two set of lenses move in the middle of having only, this relay system only needs two and becomes times curved groove, and structural design and processing is simple.

2. among the present invention, first positive lens groups that constitutes the image rotation lenses group comprises the first plano-convex single-positive-lens of a slice convex surface towards described eyepiece group; Second positive lens groups comprises that a slice is used to compensate the first gummed positive lens of image planes drift; The 3rd positive lens groups comprises that a slice is used to become the second gummed positive lens of doubly effect; The 4th positive lens groups comprises the second plano-convex single-positive-lens of a slice convex surface towards described objective lens.Wherein, the described first gummed positive lens is relative with the convex surface of the described second gummed positive lens.Therefore whole image rotation lenses group adopts four groups of symmetrical expression optical textures, advantage is: symmetrical configuration, the trend of light in relay system also is symmetrical, objective lens and eyepiece group also are symmetrical about the image rotation lenses group, light also is symmetrical in whole optical system, thereby eliminate some aberrations, be particularly conducive to the structural design of small-bore gun aiming device, whole symmetry is both artistic and practical.

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. the 3rd gummed positive lens, 12. the 3rd plano-convex single-positive-lens, 2. image rotation lenses group, 21. first plano-convex single-positive-lens, 22. the first gummed positive lens, 23. the second gummed positive lens, 24. second plano-convex single-positive-lens, 3. eyepiece group, 31. the 4th gummed positive lens, 32. biconvex single-positive-lens.

The specific embodiment

As shown in drawings, a kind of sighting telescope optical system for gun.

Present embodiment is the situation that applies the present invention to the 1-6x24 riflescope.

To the picture side direction, this sighting telescope optical system for gun 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 image rotation lenses group 2 comprises first positive lens groups that fixedly installs, mobile second positive lens groups that is provided with and the 3rd positive lens groups and the 4th positive lens groups that fixedly installs; To the picture side direction, described first positive lens groups, described second positive lens groups, described the 3rd positive lens groups and described the 4th positive lens groups are arranged in order along the thing side.What image rotation lenses group of the present invention adopted is the portable times relay system that becomes of " just-just-just-just " four set of lenses and middle two set of lenses.The advantage of this optical system is not only to obtain bigger change multiple proportions: can have 5x-6x and become multiple proportions even hypermutation multiple proportions more, obtain relatively large gun sight visual field; And can reduce relay system outgoing beam subtended angle, thereby the corresponding eyepiece system eyeglass bore that reduces the zooming system rear end; In addition, because two set of lenses move in the middle of having only, this relay system only needs two and becomes times curved groove, and structural design and processing is simple.

Wherein, described first positive lens groups comprises the first plano-convex single-positive-lens 21 of a slice convex surface towards described eyepiece group 3; Described second positive lens groups comprises that a slice is used to compensate the first gummed positive lens 22 of image planes drift; Described the 3rd positive lens groups comprises that a slice is used to become the second gummed positive lens 23 of doubly effect; Described the 4th positive lens groups comprises the second plano-convex single-positive-lens 24 of a slice convex surface towards described objective lens 1.And the described first gummed positive lens 22 is relative with the convex surface of the described second gummed positive lens 23.Therefore whole image rotation lenses group 2 adopts four groups of symmetrical expression optical textures, advantage is: symmetrical configuration, the trend of light in relay system also is symmetrical, objective lens 1 and eyepiece group 3 also are symmetrical about image rotation lenses group 2, light also is symmetrical in whole optical system, thereby eliminate some aberrations, be particularly conducive to the structural design of small-bore gun aiming device, whole symmetry is both artistic and practical.

Described objective lens 1 is made up of a slice the 3rd gummed positive lens 11 and a slice the 3rd plano-convex single-positive-lens 12, described eyepiece group is made up of a slice the 4th gummed positive lens 31 and a slice biconvex single-positive-lens 32, objective lens and eyepiece group are not limited to said structure, also can adopt other known version.

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.For example: in the present invention, each free those optical mirror slip elements formation of four positive lens groups of bearing the image rotation lenses group of anamorphosis function are not limited in the cited form of the composition of embodiment.Main technical points of the present invention is: bear four set of lenses that become times task, its optical power profile has innovative significance " just-just-just-just " combination, and when becoming times, before and after two positive lens groups at two maintain static, middle two positive lens groups move along optical axis direction according to separately motion track simultaneously.Therefore, has the sighting telescope optical system for gun of this image rotation lenses group all within the scope that the present invention is contained.

Claims

1. sighting telescope optical system for gun, 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 image rotation lenses group comprises first positive lens groups that fixedly installs, mobile second positive lens groups that is provided with and the 3rd positive lens groups and the 4th positive lens groups that fixedly installs; To the picture side direction, described first positive lens groups, described second positive lens groups, described the 3rd positive lens groups and described the 4th positive lens groups are arranged in order along the thing side.

2. sighting telescope optical system for gun as claimed in claim 1 is characterized in that: described first positive lens groups comprises the first plano-convex single-positive-lens of a slice convex surface towards described eyepiece group; Described second positive lens groups comprises a slice first gummed positive lens; Described the 3rd positive lens groups comprises a slice second gummed positive lens, and the described first gummed positive lens is relative with the convex surface of the described second gummed positive lens; Described the 4th positive lens groups comprises the second plano-convex single-positive-lens of a slice convex surface towards described objective lens.

3. sighting telescope optical system for gun as claimed in claim 1 or 2 is characterized in that: described objective lens is made up of a slice the 3rd gummed positive lens and a slice the 3rd plano-convex single-positive-lens.

4. sighting telescope optical system for gun as claimed in claim 3 is characterized in that: described eyepiece group is made up of a slice the 4th gummed positive lens and a slice biconvex single-positive-lens.