CN218955585U

CN218955585U - Eyepiece device suitable for quick focusing and visibility

Info

Publication number: CN218955585U
Application number: CN202223389790.6U
Authority: CN
Inventors: 李传伟
Original assignee: Zhongshan Mavinlens Optical Co Ltd
Current assignee: Zhongshan Mavinlens Optical Co Ltd
Priority date: 2022-12-17
Filing date: 2022-12-17
Publication date: 2023-05-02
Anticipated expiration: 2032-12-17

Abstract

The utility model discloses an eyepiece device suitable for quick focusing and visibility, which comprises an eyepiece I (1), an eyepiece II (2), an objective III (3), a first adjusting screw (4), a second adjusting screw (5), a main cylinder (6), a curve cylinder (7) and a small lens barrel (8), wherein the curve cylinder (7) is rotated during operation to enable the first adjusting screw (4) to slide in a first curve groove (71), and the curve cylinder (7) and the eyepiece I (1) move along an optical axis S, wherein the moving distance of the curve cylinder is D1; the linear groove (72) on the curve cylinder (7) simultaneously toggles the second adjusting screw (5) to rotate, so that the second adjusting screw (5) slides in the second curve groove (62), the small lens barrel (8) and the compensating lens group (10) move along the optical axis S, and the moving distance is D2, and D1 is larger than D2. The adjusting quantity is small, the vision adjusting range of +2D to-5D is realized in a rotating range of less than one circle, the rotating circle number is small, the adjusting time is short, and the technical requirement of a gun aiming system is met.

Description

Eyepiece device suitable for quick focusing and visibility

Technical Field

The utility model relates to an eyepiece device suitable for quick focusing and visibility, which is mainly applied to a gun aiming system.

Background

Currently, the gun aiming system on the market comprises a lens cone, an ocular, an objective and a prism combination arranged between the ocular and the objective, wherein the prism combination consists of a roof prism, a half pentaprism, an isosceles prism and a beam splitting film, and the patent number is as follows: CN201120225388, entitled gun sight.

The eyepiece device of the gun sight system is generally realized by adopting a single lens or a combination of a single lens and a glued lens, see patent number CN 202122840816-an utility model patent of a gun sight lens barrel capable of locking the vision, wherein the single lens and the glued lens are combined (3 lenses), but the single lens and the glued lens in the patent are arranged in a lens barrel and uniformly move to realize focusing and vision adjustment. Therefore, most of the eyepiece devices in the gun sight systems at present adopt a design scheme of a single lens, so that the structure is simplified, and the manufacturing cost is reduced.

Currently, an eyepiece device adopting a single lens in a gun sight system needs to have a vision adjusting function so as to be suitable for people with different eyesight because the vision of each person using the gun sight system is different. The range of vision adjustment of the eyepiece device in the current market gun sight system is + -5D, according to the optical principle, every time one diopter D is adjusted, then the axial movement along the optical axis of a single lens in the eyepiece= (f x f)/1000, substituting the focal length f=100 mm into calculation, every time the axial movement of one diopter D is adjusted=10 mm, the range of vision adjustment is + -5D, then the movement of 100mm is needed, the adjustment amount is too large and unacceptable, the vision adjustment of the eyepiece device of the current gun sight system can be completed only by rotating an adjusting cylinder for a plurality of circles (weeks), the adjustment time is long, the adjustment amount is large, and the capturing target position of the gun sight system is changed and cannot meet the technical requirements.

Disclosure of Invention

The utility model aims to provide an eyepiece device suitable for quick focusing and visibility, which solves the technical problems that an eyepiece device in the prior art can be completed only by rotating an adjusting cylinder for a plurality of circles when the visibility is adjusted, the adjusting time is long, the adjusting quantity is large, the capturing target position of a gun aiming system is changed, and the technical requirement cannot be met.

The technical scheme of the utility model is realized as follows:

an eyepiece device suitable for quick focusing and visibility, characterized in that: the eye lens comprises an eye lens I, an eye lens II, an object lens III, a first adjusting screw, a second adjusting screw, a main barrel, a curve barrel and a small lens barrel, wherein the eye lens II and the object lens III are glued together to form a compensation lens group, the compensation lens group is arranged in the small lens barrel, the small lens barrel is sleeved in a barrel cavity of the main barrel and can move left and right along an optical axis S, the side surface of the small lens barrel is provided with the second adjusting screw, the main barrel is provided with a second curve groove, the middle of the second adjusting screw is embedded in the second curve groove, the front end part of the curve barrel is internally provided with the eye lens I, the tail part of the curve barrel is sleeved outside the main barrel, the tail part of the curve barrel is provided with a first curve groove, the side surface of the main barrel is provided with the first adjusting screw, the first adjusting screw is embedded in the first curve groove, the side of the first curve barrel is also provided with a straight line groove parallel to the optical axis S, the top of the second adjusting screw is embedded in the straight line groove, and the eye lens I and the compensation lens group are arranged at intervals along the optical axis S from the eye to the image surface;

when the device works, the curve cylinder is rotated to enable the first adjusting screw to slide in the first curve groove, the curve cylinder and the ocular lens are moved along the optical axis S, and the moving distance is D1; the linear groove on the curve cylinder simultaneously toggles the second adjusting screw to rotate, so that the second adjusting screw slides in the second curve groove, the small lens barrel and the compensating lens group move along the optical axis S, and the moving distance is D2, and D1 is larger than D2.

And the outer surface of the tail end part of the main cylinder is provided with mounting threads.

The curve cylinder rotates in an angle range of 0-140 degrees, and the vision adjusting range of +2D to-5D is realized.

The maximum moving distance of the curve tube and the eyepiece along the optical axis is 20mm, and the maximum moving distance of the small lens tube and the glued lens group along the optical axis is 1.6mm, so that the vision adjusting range of +2D to-5D is realized.

The number of the first curve grooves at the tail part of the curve cylinder is 2, the first curve grooves are symmetrically distributed along the circumferential direction of the curve cylinder, and the straight line grooves are positioned at the middle positions of the 2 first curve grooves.

The above D1 is at least 5 times greater than D2.

Compared with the prior art, the utility model has the following advantages:

1. the utility model uses the eyepiece I as a main lens for quick focusing and vision adjustment, uses the compensation lens group as a compensation lens of the eyepiece I, has large movement distance along the optical axis and small movement distance along the optical axis, so that the axial movement amount of each diopter D is small, the adjustment amount is small, the vision adjustment range of +2D to-5D is realized in a rotation range of less than one turn, the rotation number is small, the adjustment time is short, the position change of a capturing target of the gun aiming system caused by long vision adjustment time is avoided, and the technical requirement of the gun aiming system is met.

2. Other advantages of the present utility model are described in detail in the description of the embodiments.

Drawings

FIG. 1 is an optical schematic of the present utility model;

FIG. 2 is a perspective view of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is an exploded view of the present utility model;

fig. 5 is a cross-sectional view of the structure of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 to 5, the present embodiment provides an eyepiece device suitable for quick focusing and visibility, characterized in that: the eye lens comprises an eye lens I1, an eye lens II 2, an objective lens III 3, a first adjusting screw 4, a second adjusting screw 5, a main cylinder 6, a curve cylinder 7 and a small lens barrel 8, wherein the eye lens II 2 and the objective lens III 3 are glued together to form a compensating lens group 10, the compensating lens group 10 is arranged in the small lens barrel (8) and locked by a locking ring 9, the small lens barrel 8 is sleeved in a cylinder cavity 61 of the main cylinder 6 and can move left and right along an optical axis S, a second adjusting screw 5 is arranged on the side surface of the small lens barrel 8, a second curve groove 62 is arranged on the main cylinder 6, the middle of the second adjusting screw 5 is embedded in the second curve groove 62, an eye lens I1 is arranged in the front end part of the curve cylinder 7, the tail part of the curve cylinder 7 is sleeved outside the main cylinder 6, the tail part of the curve cylinder 7 is provided with a first curve groove 71, the side surface of the main cylinder 6 is provided with the first adjusting screw 4, the first adjusting screw 4 is embedded in the first curve groove 71, the first curve groove 71 of the curve cylinder 7 is also provided with a straight groove 72 parallel to the optical axis S, the top of the second adjusting screw 5 is embedded in the straight line groove 72 of the eye lens group 10 along the optical axis S;

when in operation, the curve cylinder 7 is rotated to enable the first adjusting screw 4 to slide in the first curve groove 71, and the curve cylinder 7 and the ocular lens 1 move along the optical axis S by the distance D1; the linear groove 72 on the curve cylinder 7 simultaneously drives the second adjusting screw 5 to rotate, so that the second adjusting screw 5 slides in the second curve groove 62, and the small lens barrel 8 and the compensating lens group 10 move along the optical axis S by a distance D2, and D1 is larger than D2. The eyepiece 1 is used as a main lens for quick focusing and vision adjustment, the compensation lens group 10 is used as a compensation lens of the eyepiece 1, the movement distance of the eyepiece 1 along the optical axis S is large, the movement distance of the compensation lens group 10 along the optical axis S is small, the axial movement amount of each diopter D is small, the adjustment amount is small, the vision adjustment range of +2D to-5D is realized in the rotation range of less than one circle, the rotation circle number is small, the adjustment time is short, the position change of a capturing target of a gun aiming system caused by long vision adjustment time is avoided, and the technical requirement of the gun aiming system is met.

The outer surface of the tail end of the main cylinder 6 is provided with a mounting thread 63, so that the installation is convenient.

The curve cylinder 7 rotates in the angle range of 0-140 degrees, the visibility adjusting range of +2D to-5D is realized, the rotation can be realized by half a circle, the number of the rotation turns is small, and the adjusting time is short.

The maximum moving distance of the curve tube 7 and the eyepiece 1 along the optical axis is 20mm, the maximum moving distance of the small lens tube 8 and the gluing lens group 10 along the optical axis is 1.6mm, the vision degree adjusting range of +2D to-5D is realized, and the axial moving amount is small.

The number of the first curved grooves 71 at the tail of the curved cylinder 7 is 2, the straight grooves 72 are symmetrically distributed along the circumferential direction of the curved cylinder 7, and the straight grooves 72 are positioned at the middle positions of the 2 first curved grooves 71, so that the structure is simple, and the layout is reasonable.

The above D1 is at least 5 times greater than D2.

The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.

Claims

1. An eyepiece device suitable for quick focusing and visibility, characterized in that: the optical axis S-shaped lens comprises a first eyepiece (1), a second eyepiece (2), a third objective lens (3), a first adjusting screw (4), a second adjusting screw (5), a main cylinder (6), a curve cylinder (7) and a small lens barrel (8), wherein the second eyepiece (2) and the third objective lens (3) are glued together to form a compensation lens group (10), the compensation lens group (10) is arranged in the small lens barrel (8), the small lens barrel (8) is sleeved in a cylinder cavity (61) of the main cylinder (6) and can move left and right along the optical axis S, a second adjusting screw (5) is arranged on the side surface of the small lens barrel (8), a second curve groove (62) is arranged on the main cylinder (6), the middle of the second adjusting screw (5) is embedded in the second curve groove (62), the first end part of the curve cylinder (7) is internally provided with the first eyepiece (1), the tail part of the curve cylinder (7) is sleeved outside the main cylinder (6), the side surface of the small lens barrel (8) is provided with the first adjusting screw (4), the first adjusting screw (4) is embedded in the first curve groove (71) and the top of the first curve groove (7) is also embedded in the straight line groove (72) which is parallel to the top of the first curve groove (7), the ocular one (1) and the compensating lens group (10) are arranged at intervals along the optical axis S from eyes to an image surface;

when the device works, the curve cylinder (7) is rotated to enable the first adjusting screw (4) to slide in the first curve groove (71), the curve cylinder (7) and the ocular lens I (1) move along the optical axis S, and the moving distance is D1; the linear groove (72) on the curve cylinder (7) simultaneously toggles the second adjusting screw (5) to rotate, so that the second adjusting screw (5) slides in the second curve groove (62), the small lens barrel (8) and the compensating lens group (10) move along the optical axis S, and the moving distance is D2, and D1 is larger than D2.

2. An eyepiece device adapted for quick focusing and visibility according to claim 1, characterized in that the outer face of the rear end of the main barrel (6) is provided with mounting threads (63).

3. An eyepiece apparatus adapted for quick focus and visibility as defined in claim 2 wherein: the curve cylinder (7) rotates in an angle range of 0-140 degrees, and the vision adjusting range of +2D to-5D is realized.

4. An eyepiece device adapted for quick focus and visibility as defined in claim 3 wherein: the maximum distance of movement of the curved barrel (7) and the eyepiece 1 along the optical axis is 20mm, and the maximum distance of movement of the small lens barrel (8) together with the cemented lens group (10) along the optical axis is 1.6mm.

5. An eyepiece device according to claim 1 or 2 or 3 or 4 adapted for quick focusing and visibility, wherein: the number of the first curve grooves (71) at the tail part of the curve cylinder (7) is 2, the first curve grooves are symmetrically distributed along the circumferential direction of the curve cylinder (7), and the straight line grooves (72) are positioned at the middle positions of the 2 first curve grooves (71).

6. An eyepiece device according to claim 1 or 2 or 3 or 4 adapted for quick focusing and visibility, wherein: d1 is at least 5 times greater than D2.