Optical lens convenient for replacing lens

Abstract

The utility model relates to the technical field of optical lenses, in particular to an optical lens convenient for replacing lenses, a front group comprises a first lens barrel, a lens frame, a front main lens and an auxiliary lens, the front main lens is arranged at one end of the inner side of the first lens barrel, and the auxiliary lens is arranged in the middle of the inner side of the first lens barrel; the lens frame is oppositely arranged between the edge of the front main lens and the inner wall face of the first lens barrel, a threaded locking ring is arranged at the position, close to the lens frame, of the inner wall face of the first lens barrel, and an internal thread matched with the threaded locking ring is arranged at the position, close to the threaded locking ring, of the inner wall face of the first lens barrel. A sealing ring is arranged between the threaded locking ring and the lens frame, the detachable lens frame is arranged in the first lens barrel, and meanwhile, the threaded locking ring is arranged at the position, close to the lens frame, of the inner wall surface of the first lens barrel, so that when a lens needs to be replaced, the lens can be replaced only by twisting down and rotating out the threaded locking ring, and then the lens can be replaced. And the lens frame can drive the lens to be taken out and replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical lens technical field especially be convenient for replacing lens's optical lens. BACKGROUND

[0002] At present, optical lens is the indispensable component in machine vision system, directly influences the merits of imaging quality, influences the realization and effect of algorithm, optical lens can be divided into short focus lens, medium focus lens, long focus lens from focal length, has wide angle, standard, telephoto lens from field size, divides fixed aperture fixed focus lens, manual aperture fixed focus lens, automatic aperture fixed focus lens, manual zoom lens, automatic zoom lens, automatic aperture electric zoom lens, electric three variable (aperture, focal length, focusing can be variable) lens etc.

[0003] The existing optical lens is generally of integral structure, wherein the lens cannot be replaced, so that once the lens is damaged, the whole lens needs to be purchased again, and different lenses cannot be arranged in the same lens, so different lenses need to be purchased, which is expensive, therefore, in order to solve the above technical problems, the utility model provides an optical lens convenient for replacing lens. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of optical lenses convenient for replacing lens, including front group and rear group, front group and rear group are detachably connected, front group includes first lens barrel, lens holder, front main lens and auxiliary lens, front main lens is arranged at one end of the inboard of first lens barrel, auxiliary lens is arranged in the middle of the inboard of first lens barrel, lens holder is oppositely arranged between the edge of front main lens and the inner wall surface of first lens barrel, the position of lens holder close to the inner wall surface of first lens barrel is provided with elastic connecting rod, elastic connecting rod extends towards auxiliary lens, the end of elastic connecting rod close to auxiliary lens is oppositely provided with lens frame, the middle of lens frame is close to the position of auxiliary lens and is provided with the bayonet that matches with auxiliary lens, the end of lens frame away from connecting rod is provided with base ring, base ring, lens frame and lens holder are detachably connected with first lens barrel, the position of the inner wall surface of first lens barrel close to lens holder is provided with screw locking ring, the position of the inner wall surface of first lens barrel close to screw locking ring is provided with inner thread that matches with screw locking ring, sealing ring is arranged between screw locking ring and lens holder;Main lens is sprayed with anti-fog coating, and is made of reinforced glass simultaneously.

[0005] In the above description, further scheme is provided, the rear group includes second lens barrel, main concave mirror and auxiliary concave mirror, second lens barrel is arranged at the end of first lens barrel away from screw locking ring, the position of first lens barrel close to second lens barrel is provided with connecting groove, the position of second lens barrel close to connecting groove is provided with connecting barrel that matches with connecting groove;Connecting barrel is used to connect second lens barrel with first lens barrel.

[0006] In the above description, as a further scheme, the outer circular arc surface of the connecting groove and the connecting cylinder are threadedly connected, the connecting groove extends in a direction towards the auxiliary lens, and a rubber ring is arranged at a position of the connecting groove close to the auxiliary lens and is attached to the connecting cylinder; the rubber ring is used to provide a sealing effect of the connecting cylinder and the connecting groove.

[0007] In the above description, as a further scheme, the main concave mirror and the auxiliary concave mirror are arranged in the middle part of the connecting cylinder, the concave surface of the main concave mirror and the concave surface of the auxiliary concave mirror are oppositely arranged, an installation ring is arranged at an end of the main concave mirror away from the auxiliary concave mirror and is flush with an end of the connecting cylinder away from the second lens cylinder, and an adjusting ring is arranged between the main concave mirror and the auxiliary concave mirror; the adjusting ring is used to provide an adjusting effect between the main concave mirror and the auxiliary concave mirror.

[0008] In the above description, as a further scheme, an installation groove is arranged at an end of the second lens cylinder away from the connecting cylinder, the installation groove is in communication with the connecting groove, a main convex mirror and an auxiliary convex mirror are arranged in the installation groove, the main convex mirror is arranged at an end of the installation groove close to the auxiliary concave mirror, the auxiliary convex mirror is arranged at an end of the installation groove away from the main convex mirror, and the convex surfaces of the auxiliary convex mirror and the main convex mirror are arranged in a direction away from the connecting groove; the main convex mirror and the auxiliary convex mirror are used to provide a light gathering effect.

[0009] In the above description, as a further scheme, a separation ring is arranged between the main convex mirror and the auxiliary convex mirror, a fixing ring is arranged at a position of the groove opening of the installation groove close to the auxiliary convex mirror and is threadedly connected with the groove opening of the installation groove; the fixing ring is used to provide an installation effect of the main convex mirror and the auxiliary convex mirror.

[0010] Compared with the prior art, the optical lens has the beneficial effects that: the detachable lens holder is arranged in the first lens cylinder, the threaded locking ring is arranged at a position of the inner wall surface of the first lens cylinder close to the lens holder, when the lens needs to be replaced, the threaded locking ring is only needed to be twisted down, and after being twisted out, the lens can be taken out and replaced through the lens holder, without the need to purchase again, the detachable lens holder can also replace different lenses, and the main lens made of reinforced glass can also reduce the damage. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic diagram of the optical lens convenient for replacing lenses according to the present application;

[0012] Figure 2 is a three-dimensional structural schematic diagram of the optical lens convenient for replacing lenses according to the present application from another viewing angle;

[0013] Figure 3 is a structural exploded schematic diagram of the optical lens convenient for replacing lenses according to the present application;

[0014] Figure 4 is the utility model Figure 1 is a sectional view of the utility model

[0015] Figure 5 is the utility model Figure 3 is a sectional view of the utility model

[0016] In the figure: 1 - first lens barrel, 2 - lens holder, 3 - front main lens, 4 - auxiliary lens, 5 - elastic connecting rod;

[0017] 6 - lens frame, 7 - bayonet, 8 - base ring, 9 - threaded locking ring, 10 - sealing ring, 11 - second lens barrel;

[0018] 12 - main concave mirror, 13 - auxiliary concave mirror, 14 - connecting groove, 15 - connecting barrel, 16 - rubber ring, 17 - mounting ring;18 - adjusting ring, 19 - mounting groove, 20 - main convex mirror, 21 - auxiliary convex mirror, 22 - partition ring, 23 - fixing ring. DETAILED DESCRIPTION

[0019] The utility model will be described in further detail below in conjunction with the drawings and specific embodiments.

[0020] In this embodiment, please refer to Figures 1-5 , a kind of optical lens for facilitating replacement of lens of specific implementation, including front group and rear group, front group and rear group are detachably connected, front group includes first lens barrel 1, lens holder 2, front main lens 3 and auxiliary lens 4, front main lens 3 is arranged at the one end of the inner side of first lens barrel 1, auxiliary lens 4 is arranged at the middle of the inner side of first lens barrel 1, lens holder 2 is relatively arranged between the edge of front main lens 3 and the inner wall surface of first lens barrel 1, the position of lens holder 2 close to the inner wall surface of first lens barrel 1 is provided with elastic connecting rod 5, elastic connecting rod 5 extends towards the direction of auxiliary lens 4, the one end of elastic connecting rod 5 close to auxiliary lens 4 is relatively provided with lens frame 6, the middle of lens frame 6 is provided with bayonet 7 close to the position of auxiliary lens 4, the one end of lens frame 6 away from connecting rod is provided with base ring 8, base ring 8, lens frame 6 and lens holder 2 are all detachably connected with first lens barrel 1, the position of the inner wall surface of first lens barrel 1 close to lens holder 2 is provided with threaded locking ring 9, the position of the inner wall surface of first lens barrel 1 close to threaded locking ring 9 is provided with inner thread matched with threaded locking ring 9, sealing ring 10 is arranged between threaded locking ring 9 and lens holder 2.

[0021] Rear group includes second lens barrel 11, main concave mirror 12 and auxiliary concave mirror 13, second lens barrel 11 is arranged at the one end of first lens barrel 1 away from threaded locking ring 9, the position of first lens barrel 1 close to second lens barrel 11 is provided with connecting groove 14, the position of second lens barrel 11 close to connecting groove 14 is provided with connecting barrel 15 matched with connecting groove 14.

[0022] The outer circular arc surface of the connecting groove 14 and the connecting cylinder 15 is threadedly connected, the connecting groove 14 is extended in a direction towards the auxiliary lens 4, and the connecting groove 14 is provided with a rubber ring 16 at a position close to the auxiliary lens 4, which is in close contact with the connecting cylinder 15.

[0023] The main concave mirror 12 and the auxiliary concave mirror 13 are both arranged in the middle part of the connecting cylinder 15, the concave surface of the main concave mirror 12 and the concave surface of the auxiliary concave mirror 13 are oppositely arranged, the main concave mirror 12 is provided with a mounting ring 17 at an end away from the auxiliary concave mirror 13, the mounting ring 17 is flush with an end of the connecting cylinder 15 away from the second lens cylinder 11, and an adjusting ring 18 is arranged between the main concave mirror 12 and the auxiliary concave mirror 13.

[0024] The second lens cylinder 11 is provided with a mounting groove 19 at an end away from the connecting cylinder 15, the mounting groove 19 is in communication with the connecting groove 14, the main convex mirror 20 and the auxiliary convex mirror 21 are arranged in the mounting groove 19, the main convex mirror 20 is arranged at an end of the mounting groove 19 close to the auxiliary concave mirror 13, the auxiliary convex mirror 21 is arranged at an end of the mounting groove 19 away from the main convex mirror 20, and the convex surfaces of the auxiliary convex mirror 21 and the main convex mirror 20 are both arranged in a direction away from the connecting groove 14.

[0025] A partition ring 22 is arranged between the main convex mirror 20 and the auxiliary convex mirror 21, and a fixing ring 23 is arranged at a groove opening of the mounting groove 19 close to the auxiliary convex mirror 21, which is threadedly connected with the groove opening of the mounting groove 19.

[0026] The lens replacement process of the utility model is as follows: rotating the threaded locking ring 9, taking out the lens frame 6 from the first lens cylinder 1 by driving the lens holder 2 through the elastic connecting rod 5 after separating the threaded locking ring 9 from the first lens cylinder 1, driving the lens holder 2 through the elastic connecting rod 5, separating the lens holder 2 from the front main lens 3, taking down the front main lens 3 to be replaced, embedding the prepared lens into the lens holder 2, stopping the force exertion on the elastic connecting rod 5, driving the lens holder 2 to reset after stopping the force exertion, clamping the lens after resetting, and finally putting the lens holder 2 and the lens frame 6 into the first lens cylinder 1, and then putting in the sealing ring 10 and the threaded locking ring 9, so as to realize the replacement of the lens.

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] In addition, in the description of the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the description of the present application, it should be pointed out that the directions or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] Finally, it should be pointed out that: the above embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit it, the protection scope of the present application is not limited to this, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any skilled person in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the present application, or make equivalent replacement to part of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and all should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An optical lens facilitating lens replacement, comprising a front group and a rear group, the front group and the rear group being removably connected, characterized in that: The front group comprises a first lens barrel, a lens holder, a front main lens and a sub lens, the front main lens is arranged at one end of the inner side of the first lens barrel, the sub lens is arranged at the middle of the inner side of the first lens barrel, the lens holder is oppositely arranged between the edge of the front main lens and the inner wall surface of the first lens barrel, the position of the lens holder close to the inner wall surface of the first lens barrel is provided with an elastic connecting rod, the elastic connecting rod extends towards the direction of the sub lens, the end of the elastic connecting rod close to the sub lens is oppositely provided with a lens frame, the middle of the lens frame close to the position of the sub lens is provided with a bayonet matched with the sub lens, the end of the lens frame away from the connecting rod is provided with a base ring, the base ring, the lens frame and the lens holder are detachably connected with the first lens barrel, the inner wall surface of the first lens barrel close to the position of the lens holder is provided with a threaded locking ring, the inner wall surface of the first lens barrel close to the position of the threaded locking ring is provided with an inner thread matched with the threaded locking ring, and a sealing ring is arranged between the threaded locking ring and the lens holder.

2. The optical lens of claim 1, wherein: The rear group comprises a second lens barrel, a main concave mirror and a sub concave mirror, the second lens barrel is arranged at the end of the first lens barrel away from the threaded locking ring, the first lens barrel close to the position of the second lens barrel is provided with a connecting groove, and the second lens barrel close to the position of the connecting groove is provided with a connecting barrel matched with the connecting groove.

3. An optical lens for easy lens replacement according to claim 2, wherein: The outer circular arc surfaces of the connecting groove and the connecting barrel are threadedly connected, the connecting groove extends in a lead-through manner towards the direction of the sub lens, the position of the connecting groove close to the sub lens is provided with a rubber ring, and the rubber ring is attached to the connecting barrel.

4. The optical lens of claim 2, wherein: The main concave mirror and the sub concave mirror are arranged at the middle of the connecting barrel, the concave surface of the main concave mirror and the concave surface of the sub concave mirror are oppositely arranged, the end of the main concave mirror away from the sub concave mirror is provided with a mounting ring, the mounting ring is flush with the end of the connecting barrel away from the second lens barrel, and an adjusting ring is arranged between the main concave mirror and the sub concave mirror.

5. The optical lens of claim 2, wherein: The end of the second lens barrel away from the connecting barrel is provided with a mounting groove, the mounting groove is in communication with the connecting groove, the main convex mirror and the sub convex mirror are arranged in the mounting groove, the main convex mirror is arranged at one end of the mounting groove close to the sub concave mirror, the sub convex mirror is arranged at the other end of the mounting groove away from the main convex mirror, and the convex surfaces of the sub convex mirror and the main convex mirror are arranged towards the direction away from the connecting groove.

6. An optical lens for easy lens replacement according to claim 5, wherein: A partition ring is arranged between the main convex mirror and the sub convex mirror, and a fixing ring is arranged at the slot opening of the mounting groove close to the sub convex mirror, and the fixing ring is threadedly connected with the slot opening of the mounting groove.

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