CN113391425B

CN113391425B - Zoom lens, periscopic lens and mobile phone camera

Info

Publication number: CN113391425B
Application number: CN202110631091.9A
Authority: CN
Inventors: 罗凯
Original assignee: TCL Communication Ningbo Ltd
Current assignee: TCL Communication Ningbo Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-11-04
Anticipated expiration: 2041-06-07
Also published as: CN113391425A

Abstract

The invention discloses a zoom lens, a periscopic lens and a mobile phone camera, wherein the zoom lens comprises at least three lens groups, a first sleeve and a second sleeve, a group of directional guide rails is arranged on the first sleeve, the lens groups are arranged on the directional guide rails through connecting pieces, the second sleeve is arranged on the first sleeve, the second sleeve rotates along the first sleeve, and moving guide rails corresponding to the lens groups are arranged on the inner wall of the second sleeve. According to the zoom lens, the at least three lens groups, the first sleeve and the second sleeve are arranged, and the second sleeve is rotated, so that the lens groups on the directional guide rail linearly move along the optical main shaft of the zoom lens, the distance between the lens groups is changed, and the zoom effect is further achieved.

Description

Zoom lens, periscopic lens and mobile phone camera

Technical Field

The invention relates to the technical field of zoom lenses, in particular to a zoom lens, a periscopic lens and a mobile phone camera.

Background

With the development of technology and the improvement of living standard of people, mobile phones are becoming an indispensable electronic device in people's lives more and more. At present, most mobile phones have a shooting function. Because the mobile phone is portable and convenient to carry and operate, people tend to use the mobile phone to shoot more and more.

Nowadays, the shooting function becomes one of the standard configurations of mobile phones, and the convenience of the mobile phone brings people a good feeling in life. However, with the development of the times, the traditional fixed-focus mobile phone camera cannot meet the higher living pursuit of people, so that the development of a new mobile phone optical zoom implementation mode is urgently needed. However, in view of the particularity of the mobile phone camera, the mobile phone camera in the prior art is difficult to realize the multiple optical zooming function of the mobile phone, and is difficult to provide better photographing experience effect for a large number of mobile phone users.

Therefore, the prior art has yet to be improved.

Disclosure of Invention

The inventor finds that the mobile phone camera in the prior art has the problem that the multiple optical zooming function of the mobile phone is difficult to realize, so that better photographing experience effect is difficult to be provided for a large number of mobile phone users.

The present invention aims to alleviate or solve at least to some extent at least one of the above mentioned problems. The invention provides a zoom lens, a periscopic lens and a mobile phone camera, wherein the zoom lens comprises:

at least three lens groups;

the connecting pieces are arranged on the lens groups respectively;

the first sleeve is provided with a group of directional guide rails, and the lens group is arranged on the directional guide rails through the connecting piece and moves linearly along the optical main shaft of the zoom lens;

the second sleeve is arranged on the first sleeve and the lens group and rotates along the first sleeve, moving guide rails corresponding to the lens groups are arranged on the inner wall of the second sleeve and are not intersected on the second sleeve, and the connecting piece moves linearly along the optical main shaft of the zoom lens through the rotation of the second sleeve.

In one embodiment, a driving gear is arranged on the outer wall of the second sleeve, and a thumb wheel is connected to the driving gear.

In one embodiment, a driving gear is arranged on the outer wall of the second sleeve, and a driving motor is connected to the driving gear

In one embodiment, the second sleeve comprises:

the cylinder plates are arranged in equal arc length.

In one embodiment, the moving guide rails at the same position on each of the barrel plates are the same.

In one embodiment, the lens sets are three, that is, the lens sets include a first lens set, a second lens set and a third lens set;

the second sleeve is respectively provided with a first movable guide rail corresponding to the first lens group, a second movable guide rail corresponding to the second lens group and a third movable guide rail corresponding to the third lens group.

In one embodiment, the first moving guide has a parabolic shape and the second moving guide has a spiral shape.

In one embodiment, the connector comprises:

the lens group is embedded in the lens base;

the guide post is arranged on the lens base and penetrates through the directional guide rail and is embedded in the movable guide rail.

The invention also provides a periscopic lens comprising the zoom lens. Therefore, the periscopic lens can have all the structural characteristics and the beneficial effects of the zoom lens, and the details are not repeated herein.

The invention also provides a mobile phone camera which comprises the periscopic lens, so that the mobile phone camera can have all structural characteristics and beneficial effects of the zoom lens, and further description is omitted.

The invention has the beneficial effects that: according to the zoom lens, the at least three lens groups, the first sleeve and the second sleeve are arranged, and the second sleeve is rotated, so that the lens groups on the directional guide rail linearly move along the optical main shaft of the zoom lens, the distance between the lens groups is changed, and the zoom effect is further achieved.

Drawings

Fig. 1 is an exploded schematic view of a zoom lens provided by the present invention.

FIG. 2 is a schematic diagram of the zoom lens according to the present invention.

FIG. 3 is a schematic structural view of a barrel plate in the zoom lens provided by the present invention.

Fig. 4 is a reference diagram of the use state of the periscopic lens provided by the invention.

Fig. 5 is an assembly view of a zoom lens in a periscopic lens according to the present invention.

FIG. 6 is an assembly diagram of a driving device in the zoom lens provided by the present invention.

Fig. 7 is a schematic structural view of the connector provided by the present invention.

Fig. 8 is an exploded view of a connector provided by the present invention.

Fig. 9 is a schematic structural view of a first sleeve provided by the present invention.

Reference numerals are as follows:

100	lens group	210	Directional guide rail
				200	First sleeve	211	First guide rail
300	Second sleeve	212	Second directional guide rail
				400	Driving gear	213	Third directional guide rail
500	Thumb wheel	310	Movable guide rail
				600	Photosensitive element	311	First movable guide rail
700	Reflecting mirror	312	Second movable guide rail
				800	Appearance lens	313	Third movable guide rail
900	Shell body	320	Barrel plate
				110	Lens	321	First bobbin plate
111	First lens group	322	Second tube plate
				112	Second lens group	323	Third tube plate
113	Third lens group	330	Positioning column
				120	Connecting piece	331	Rod body
121	Lens base	332	Arc part
				1211	First flange	333	Insertion part
1212	Second flange	340	Locating hole
				130	Guide post	350	Bump
131	First guide post	410	Gear body
				132	Second guide post	420	Gear tooth
133	Third guide post	430	Clamping groove
				910	Adjusting port

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Based on the problems in the prior art, the present embodiment provides a zoom lens, which is shown in fig. 1 and fig. 2, and includes:

at least three lens groups 100, a first sleeve 200, a second sleeve 300 (shown in fig. 5) and a connecting member 120, wherein the connecting member 120 is disposed on each of the lens groups 100, a set of directional guide rails 210 is disposed on the first sleeve 200, the lens groups 100 are disposed on the directional guide rails 210 through the connecting member 120 and linearly move along the optical axis of the zoom lens, the second sleeve 300 is disposed on the first sleeve 200 and the lens groups 100, the second sleeve 300 rotates along the first sleeve 100, a moving guide rail 310 corresponding to each of the lens groups 100 is disposed on the inner wall of the second sleeve 300, each of the moving guide rails 310 is not intersected with the second sleeve 300, and the connecting member 120 linearly moves along the optical axis of the zoom lens through the rotation of the second sleeve 300.

The working principle of the zoom lens provided by the embodiment is as follows:

generally, a zoom lens can be broadly classified into two categories, i.e., optical compensation and mechanical compensation, the optical compensation is suitable for a zoom system with a low power ratio and a small relative aperture, and the focal length is only a few discrete values, so that some limitations are imposed on users. The basic principle of the mechanical compensation zoom lens is that the focal length of the system combination is changed by using the movement of 2 or more than 2 lens groups in the system, meanwhile, the position of an image surface is kept still, and the image quality is always kept good in the zooming process.

The two compensation modes are divided into a positive compensation mode and a negative compensation mode according to the positive and negative focal lengths of the compensation groups, generally, when the focal lengths of the zooming groups are the same, the two compensation modes are compared, the continuous zooming optical system for positive group compensation is thin and long in structure, the system for negative group compensation is thick and short in structure, and the secondary spectrum and spherical aberration for negative group compensation are larger than those for positive group compensation. For a small field-of-view system and under the condition of low requirements on spherical aberration and secondary spectrum, the negative group compensation can meet the requirements; however, for a zoom lens with a large field of view or a zoom lens with a large magnification, a small secondary spectrum is required, and positive group compensation is required.

The Gaussian optical calculation of the zoom lens mainly aims to determine the focal length of each group and the interval between the groups, namely, the motion relation of each group of the zoom lens in the zooming process is determined, initial parameters are provided for optical design, the initial position is determined firstly, and the calculation is started from the position where the magnification of the variable-power group is equal to that of the compensation group for a system adopting a root-changing compensation mode. Usually, only three states of long, medium and short focus are solved in the solving process, and only the moving condition of each group of lens group in the zooming process can be roughly known. And calculating the structural parameters of each point in the zooming process by taking the object distance of the zoom group as an independent variable, and simulating the moving track of each group of lens groups by Matlab software, so as to determine the moving track of each lens group on the second sleeve. If the zoom lens comprises 4 lens groups, namely a front fixed group, a zoom group, a compensation group and a rear fixed group, 4 movable guide rails corresponding to the front fixed group, the zoom group, the compensation group and the rear fixed group are respectively arranged on the second sleeve, and through rotating the second sleeve, each lens group can be moved along the directional guide rails, so that the lens groups can be ensured to move linearly along the optical main shaft of the zoom lens, the distance between the lens groups can be changed, and the zooming effect can be achieved.

The zoom lens in this embodiment includes at least three lens groups 100, a first sleeve 200 and a second sleeve 300, wherein the second sleeve 300 is sleeved on the first sleeve 200, each lens group 100 is disposed on the orientation rail 210 of the first sleeve 200, the orientation rail 210 is disposed in parallel with the optical axis of the zoom lens, and the second sleeve 300 is disposed with a moving rail 310 corresponding to each lens group 100, and by rotating the second sleeve 300, each lens group 100 moves along the orientation rail 210, thereby ensuring that the lens groups 100 move linearly along the optical axis of the zoom lens, so that the distance between the lens groups 100 changes, and further achieving the zooming effect.

The zoom lens provided by the embodiment has the beneficial effects that:

this embodiment is through setting up at least three lens group, connecting piece, first sleeve and second sleeve, rotatory second sleeve for each lens group on directional guide rail is along zoom's optical main shaft rectilinear motion, makes the interval between each lens group change, and then reaches the effect of zooming, consequently, the zoom of lens group and the function of compensation can be realized to this embodiment, ensures that focal plane position is unchangeable, guarantees the quality of shooing, promotes user's the experience of shooing.

In one embodiment, in conjunction with fig. 2, the lens set 100 is provided in three, such that the lens set 100 is provided with: a first lens group 111, a second lens group 112, and a third lens group 113; the first sleeve 200 is provided with a set of directional guide rails 210, the first lens set 111, the second lens set 112 and the third lens set 113 are all arranged on the directional guide rails 210 and move linearly along the optical spindle of the zoom lens, the second sleeve 300 is arranged on the first sleeve 200, the first lens set 111, the second lens set 112 and the third lens set 113, the second sleeve 300 rotates along the first sleeve 100, and the second sleeve 300 is respectively provided with a first moving guide rail 311 corresponding to the first lens set 111, a second moving guide rail 312 corresponding to the second lens set 112 and a third moving guide rail 313 corresponding to the third lens set 113.

In this embodiment, the lens group is provided with: a first lens group 111, a second lens group 112, and a third lens group 113; the second sleeve 300 is provided with a first moving guide 311 corresponding to the first lens group 111, a second moving guide 312 corresponding to the second lens group 112, and a third moving guide 313 corresponding to the third lens group 113, when the second sleeve 300 is rotated, the first lens group 111, the second lens group 112, and the third lens group 113 all have their own moving tracks, and when the second sleeve 300 is rotated, the first lens group 111, the second lens group 112, and the third lens group 113 realize the same-direction or reverse-direction movement under the condition that the first moving guide 311, the second moving guide 312, and the third moving guide 313 are combined with the orientation guide 210, respectively, so that the distance between the lens groups 100 is changed, and the zooming effect is achieved. It should be understood that the number of the lens sets 100 is not limited to the three, and other situations are also possible, and is not limited herein.

Alternatively, the first moving guide 311 has a parabolic shape, and the second moving guide 312 has a spiral shape.

In the present embodiment, the shape of the moving rail 310 directly affects the moving state of the lens group 100, and if the moving rail 310 is circular, the position of the lens group 100 corresponding to the moving rail 310 remains unmoved on the orientation rail 210 when the second sleeve 300 rotates; if the moving rail 310 is disposed in a parabolic shape, the movement of the lens group 100 corresponding to the moving rail 310 may occur in a forward movement and then a backward movement after turning, or in a backward movement and then a forward movement after turning; if the movable rail 310 is spiral, when the second sleeve 300 is rotated, the lens sets 100 corresponding to the movable rail 310 move in one direction, so that the present embodiment can control the actual moving status of each lens set 100 through the movable rail 310 with a specific shape, such as realizing the same-direction movement between the lens sets 100 or realizing the reverse-direction movement between the lens sets 100.

Specifically, referring to fig. 2, in the present embodiment, the first moving guide 311 has a parabolic shape, the second moving guide 312 has a spiral shape, and the third moving guide 313 has an annular shape. If the first sleeve 200 is provided with a set of directional guide rails 210 parallel to the optical principal axis of the zoom lens, and the second sleeve 300 is provided with a first moving guide rail 311, a second moving guide rail 312 and a third moving guide rail 313 respectively, in this embodiment, the first lens group 111 is disposed on the directional guide rail 210 of the first sleeve 200, and the first lens group 111 passes through the directional guide rail 210 and is embedded on the first moving guide rail 311 of the second sleeve 300; the second lens group 112 is disposed on the orientation rail 210 of the first sleeve 200, and the second lens group 112 is embedded on the second moving rail 312 of the second sleeve through the orientation rail 210; the third lens group 113 is arranged on the directional guide 310 of the first sleeve, and the third lens group 113 is embedded on the third movable guide 313 of the second sleeve through the directional guide 210; the first moving guide rail 311 is parabolic, the second moving guide rail 312 is spiral, the third moving guide rail 313 is circular, the moving guide rails 310 are not intersected on the second sleeve 300, the second sleeve 300 is rotated, and the third lens group 113 is kept relatively still on the directional guide rail 210, namely, does not move linearly; the second lens group 112 moves linearly toward the third lens group 113; the first lens group 111 first moves linearly away from the second lens group 112, then moves toward the second lens group 112, and finally returns to the original position of the first lens group 111.

In the present embodiment, an optical compensation method is adopted to correct the focus drift, wherein the lens 110 of the first lens group 111 is a first convex lens, the lens 110 of the second lens group 112 is a first concave lens, the lens 110 of the third lens group 113 is a second convex lens, the third lens group 113 is relatively kept stationary, i.e. does not generate linear movement, the second lens group 112 linearly moves from one side of the first lens group 111 to one side of the third lens group 113, and further generates a zooming effect, and the first lens group 111 moves along the first moving guide rail 311 on the second sleeve, i.e. the first lens group 111 moves along the parabola on the second sleeve.

In an embodiment, with reference to fig. 5 and 6, a driving device is disposed on an outer wall of the second sleeve 300, the driving device includes a driving gear 400 and a driving motor, specifically, the driving gear 400 is disposed on the outer wall of the second sleeve 300, and the driving gear 400 is connected to the driving gear 400 and is provided with the driving motor.

In this embodiment, the driving motor is automatically controlled to drive the second sleeve upper driving gear 400, the second sleeve 300 further rotates, and the lens groups 100 linearly move along the optical main axis of the zoom lens under the mutual cooperation of the orientation rail 210 and the moving rail 310, so that the distance between the lens groups 100 changes, and the light zooming function of the lens groups 100 is realized.

In one embodiment, as shown in fig. 5 and 6, a driving device is disposed on an outer wall of the second sleeve 300, the driving device includes a driving gear 400 and a thumb wheel 500, specifically, the driving gear 400 is disposed on the outer wall of the second sleeve 300, and the thumb wheel 500 is connected to the driving gear 400.

In this embodiment, by dialing the dial wheel 500, the dial wheel 500 drives the second sleeve upper driving gear 400, the second sleeve 300 further rotates, and the lens groups 100 linearly move along the optical main axis of the zoom lens under the mutual cooperation of the directional guide rail 210 and the moving guide rail 310, so that the distance between the lens groups 100 changes, and the function of zooming the light of the lens groups 100 is realized.

In this embodiment, the rotation of the second sleeve 300 can be precisely controlled by dialing the dial wheel 500, the distance between the lens groups 100 can be adjusted, and the operation is simple and the use is convenient. It should be understood that the transmission manner of the second sleeve is not limited to the above-mentioned driving gear and dial wheel, and may be other situations, and is not limited herein.

Specifically, the driving gear 400 is engaged with the dial wheel 500, wherein the driving gear 400 includes a gear body 410, gear teeth 420 and a plurality of slots 430, the gear body 410 is annularly disposed, the gear body 410 is sleeved on the second sleeve 300, the gear teeth 420 are disposed on the outer wall of the gear body 410, and the gear teeth 420 are engaged with the dial wheel 500; be provided with on the inner wall of gear body 410 draw-in groove 430, be provided with on the outer wall of second sleeve 300 with the lug 350 of draw-in groove 430 looks adaptation, lug 350 and draw-in groove 430 lock fixed connection, in this embodiment, through stirring thumb wheel 500, thumb wheel 500 drives drive gear 400 and rotates for second sleeve 300 rotates.

Preferably, referring to fig. 7 and 8, a connector 120 is disposed on the lens set 100, and the connector 120 passes through the orientation rail 210 and is embedded in the moving rail 310.

In this embodiment, each lens group 100 is provided with a connecting member 120, and the lens group 100 is moved on the moving rail 310 and the orientation rail 210 through the connecting member 120 to ensure that the distance between the lens groups is changed, so as to realize the function of zooming the light of the lens groups.

Specifically, the connecting element 120 includes a lens base 121 and a guiding column 130 disposed on the lens base 121, wherein the lens group 100 is embedded in the lens base 121, and the guiding column 130 passes through the directional guiding rail 210 and is embedded in the movable guiding rail 310.

In the present embodiment, as shown in fig. 8, the connecting element 120 is used for mounting and carrying the lens assembly 100, wherein the lens base 121 is disposed in a circular shape, a first flange 1211 and a second flange 1212 are respectively disposed on two sides of an inner wall of the lens base 121, the first flange 1211, the second flange 1212 and the lens base 121 are connected to form a first mounting groove, and the lens assembly 100 is embedded in the first mounting groove; the outer wall of the lens base 121 is provided with a guide post 130, the guide post 130 is a cylinder, the surface is smooth, and it can be ensured that the guide post 130 freely slides in the directional guide rail 210 and the moving guide rail 310, if the guide post 130 is arranged on the directional guide rail 210 and passes through the directional guide rail and then is embedded in the moving guide rail 310, when the second sleeve rotates 300 times, the guide post 130 arranged in the moving guide rail can be driven to move, wherein the guide post 130 is arranged in the directional guide rail, therefore, the guide post 130 can linearly move along the directional guide rail 210, and further, the lens group 100 linearly moves along the optical main shaft of the zoom lens is realized, so that the distance between the lens groups 100 is changed, and further, the zooming effect is achieved.

Optionally, 3 guide pillars 130 are disposed on the outer wall of the lens base 121, and the 3 guide pillars 130 are uniformly distributed on the outer wall of the lens base 121, that is, the included angles between the 3 guide pillars 130 are equal.

In this embodiment, 3 guiding pillars are disposed on the outer wall of the lens base, and 3 guiding pillars 130 are uniformly distributed on the outer wall of the lens base 121, and the lens group 100 freely slides in the orientation guide rail 210 and the moving guide rail 310 through the 3 guiding pillars 130, so as to realize that the lens group 100 linearly moves along the optical main axis of the zoom lens, so that the distance between the lens groups 100 changes, and further the zooming effect is achieved.

As shown in fig. 8, a first guiding column 131, a second guiding column 132 and a third guiding column 133 are disposed on the outer wall of the lens base 121, as shown in fig. 9, a first sleeve 200 is provided with a first guiding rail 211, a second guiding rail 212 and a third guiding rail 213 which are respectively parallel to the optical main axis of the zoom lens, a second sleeve 300 is provided with a moving rail 310 corresponding to each lens group 100, and the first guiding column 131 passes through the first guiding rail 211 and is embedded in the moving rail; the second guide post 132 passes through the second guide rail 212 and is embedded in the moving rail; the third guiding column 133 passes through the third guiding rail 213 and is embedded in the moving rail, and in this embodiment, the lens group is embedded in the moving rail 310 after passing through the guiding rail 210 through the 3 guiding columns 130, so as to realize the linear motion of the lens group along the optical main axis of the zoom lens, so that the distance between the lens groups is changed, and further, the zooming effect is achieved.

In this embodiment, since the 3 guiding columns 130 are uniformly distributed on the outer wall of the lens base 121, the first guiding column 131 can be freely assembled with the first guiding rail 211, the second guiding rail 212 and the third guiding rail 213, and so on, which facilitates the free assembly of the second guiding column 132 and the third guiding column 133. It should be understood that the number of the guide posts 130 is not limited to the above 3, and other situations are possible, and is not limited herein.

In one embodiment, in conjunction with fig. 1, the second sleeve 300 comprises: at least two cylinder plates 320, the cylinder plates 320 are arranged in an equal arc length. In this embodiment, the second sleeve 300 is formed by splicing at least two barrel plates 320, and the arc lengths of the barrel plates 320 are equal, that is, the barrel plates have the same size and the same shape, so that the assembly and disassembly are convenient, and the maintenance and repair of the zoom lens are convenient.

In this embodiment, the moving guide 310 at the same position on each of the barrel plates 320 is the same. In the embodiment, the lens groups are multiple, the inner wall of the second sleeve 300 is provided with the movable guide rails 310 corresponding to the lens groups 100, the number of the movable guide rails 310 is the same as that of the lens groups 100, and the positions of the movable guide rails 310 also correspond to those of the lens groups 100, the second sleeve 300 is formed by splicing a plurality of barrel plates 320, so that the barrel plates 320 are provided with the movable guide rails corresponding to the positions of the lens groups 100, in the embodiment, the lens groups 100 are provided with the connecting members 120, the guide posts 130 on the connecting members 120 are arranged corresponding to the movable guide rails 310, the movable guide rails 310 on each barrel plate are provided with the corresponding guide posts 130 on the lens groups 100, and the movable guide rails 310 on the barrel plates 320 at the same positions are the same, so that the guide posts 130 can be ensured to move smoothly in the movable guide rails 310, and the phenomenon of blocking or jamming can be prevented.

Preferably, the number of the cylinder plates 320 is three, that is, the second sleeve 300 is formed by splicing three cylinder plates 320 with equal arc length, wherein, as shown in fig. 3, one side of the cylinder plate 320 is provided with a positioning column 330, and one side of the cylinder plate 320 away from the positioning column 330 is provided with a positioning hole 340, as shown in fig. 1, the cylinder plate includes a first cylinder plate 321, a second cylinder plate 322 and a third cylinder plate 323, the positioning column 330 of the first cylinder plate is fixedly connected with the positioning hole 340 of the second cylinder plate, the positioning column 330 of the second cylinder plate is fixedly connected with the positioning hole 340 of the third cylinder plate, the positioning column 330 of the third cylinder plate is fixedly connected with the positioning hole 340 of the first cylinder plate, and the first cylinder plate 321, the second cylinder plate 322 and the third cylinder plate 323 are sequentially and fixedly connected to form the second sleeve.

In this embodiment, the positioning column 330 includes a rod 331, an arc portion 332, and an insertion portion 333, the rod 331 is located on a side wall of the barrel 320, the arc portion 332 and the insertion portion 333 are sequentially disposed on the rod 331, the insertion portion 333 is spherical, and the insertion portion 333 is connected to the rod 331 through the arc portion 332, so that the rod 331 can be conveniently inserted into the positioning hole 340 on the other barrel.

In this embodiment, the inner walls of the first cylindrical plate 321, the second cylindrical plate 322, and the third cylindrical plate 323 are all provided with a moving track 310 corresponding to the lens group 100, and the moving tracks 310 on the inner walls of the first cylindrical plate 321, the second cylindrical plate 322, and the third cylindrical plate 323 are all arranged in the same way, so that the guide post 130 can be ensured to move smoothly in the moving guide rail 310, and the phenomenon of jamming or jamming can be prevented. Referring to fig. 2, taking the example of the lens assembly including the first lens assembly 111, the second lens assembly 112 and the third lens assembly 113 as an example, referring to fig. 3, the first tube plate 321 includes a first moving rail 311, a second moving rail 312 and a third moving rail 313 respectively; the second cylindrical plate 322 is provided with a first moving guide 311, a second moving guide 312, and a third moving guide 313, respectively; the third cylindrical plate 323 is provided with a first moving guide rail 311, a second moving guide rail 312, and a third moving guide rail 313, respectively; referring to fig. 8, a first guiding column 131, a second guiding column 132 and a third guiding column 133 are disposed on the outer wall of the lens base 121; referring to fig. 9, the first sleeve 200 is provided with a first orientation rail 211, a second orientation rail 212, and a third orientation rail 213, which are respectively parallel to the optical major axis of the zoom lens.

In the first lens group: the first guide column 131 passes through the first guide rail 211 and is embedded in the first moving rail 311 of the first barrel plate 321; the second guide post 132 passes through the second guide rail 212 and is embedded in the first moving rail 311 of the second cylinder plate 321; third guide post 133 passes through third guide rail 213 and is embedded in first moving guide 311 of third cylindrical plate 323.

In the second lens group: the first guiding column 131 passes through the first guiding rail 211 and is embedded in the second moving rail 312 of the first barrel plate 321; the second guiding column 132 passes through the second guiding rail 212 and is embedded in the second moving rail 312 of the second barrel plate 322; third guide post 133 passes through third guide rail 213 and is embedded in second moving guide 312 of third cylindrical plate 323.

In the third lens group: the first guide column 131 passes through the first guide rail 211 and is embedded in the third moving rail 313 of the first barrel plate 321; the second guiding column 132 passes through the second guiding rail 212 and is embedded in the third moving rail 313 of the second barrel plate 322; third guide post 133 passes through third guide rail 213 and is embedded in third moving rail 313 of third cylindrical plate 323.

In this embodiment, the first guiding column 131 can be freely assembled with the first guiding rail 211, the second guiding rail 212 and the third guiding rail 213, for example, the first guiding column 131 passes through the second guiding rail 212 or the first guiding column 131 passes through the third guiding rail 213, and so on, which can facilitate the free assembly of the second guiding column 132 and the third guiding column 133; in this embodiment, the first guiding column 131 can be freely assembled with the first moving guide rail 311 of the first barrel plate 321, the first moving guide rail 311 of the second barrel plate 322, and the first moving guide rail 311 of the third barrel plate 323, for example, the first guiding column 131 is embedded in the first moving guide rail 311 of the second barrel plate 322 or the first guiding column 131 is embedded in the first moving guide rail 311 of the third barrel plate 323, and so on, it is convenient for the second guiding column 132 and the third guiding column 133 to be freely assembled with the second barrel plate 322 and the third barrel plate 323 respectively.

A periscopic lens, combine fig. 4 and 5, said periscopic lens includes the zoom lens, the shell 900, the photosensitive element 600, the reflecting mirror 700 and the appearance lens 800 as described in the above embodiments, said shell 900 is respectively provided with said zoom lens, said photosensitive element 600, said reflecting mirror 700 and said appearance lens 800, said photosensitive element 600 is located on one side of said zoom lens, said reflecting mirror 700 is located on one side of said zoom lens far away from said photosensitive element 600, said appearance lens 800 and said reflecting mirror 700 are matched and set.

In one embodiment, with reference to fig. 2 and 7, the zoom lens of the periscopic lens includes: a first lens group 111, a second lens group 112, a third lens group 113, a connecting member 120, a first sleeve 200, and a second sleeve 300.

The zoom lens is characterized in that a group of directional guide rails 210 are arranged on the first sleeve 200, a first lens group 111, a second lens group 112 and a third lens group 113 are arranged on the directional guide rails 210 and move linearly along an optical main shaft of the zoom lens, the second sleeve 300 is arranged on the first sleeve 200, the first lens group 111, the second lens group 112 and the third lens group 113, the second sleeve 300 rotates along the first sleeve 200, a movable guide rail 310 corresponding to the first lens group 111, the second lens group 112 and the third lens group 113 is arranged on the inner wall of the second sleeve 300, the connecting piece 120 is correspondingly arranged on the first lens group 111, the second lens group 112 and the third lens group 113, and the connecting piece 120 penetrates through the directional guide rails 210 and is embedded in the movable guide rail 310.

First lens group 111, second lens group 112 and third lens group 113 distribute in proper order and set up, and first lens group 111 is located the one side of speculum 700, and third lens group 113 is located photosensitive element 600's one side, be provided with respectively on the inner wall of second sleeve 300 with first removal guide rail 311 that first lens group 111 corresponds, with second removal guide rail 312 that second lens group 112 corresponds, with the corresponding third removal guide rail 313 of third lens group 113, wherein, first removal guide rail 311 is the parabola form, second removal guide rail 312 is the heliciform, third removal guide rail 313 is the ring form setting, is provided with drive arrangement on the second sleeve 300 outer wall, drive arrangement includes drive gear 400 and thumb wheel 500, specifically, be provided with on the second sleeve 300 outer wall drive gear 400, drive gear 400 is last to be connected and is provided with thumb wheel 500, thumb wheel 500 exposes in adjusting port 910 of casing 900.

In the present embodiment, referring to fig. 2, by dialing the dial 500, the second sleeve 300 rotates, so that the first lens group 11 on the directional guide rail 210 first moves linearly away from the second lens group 112 and then moves toward the second lens group 112; the second lens group 112 on the orientation guide 210 moves linearly toward the third lens group 113 side; make third lens group 113 on directional guide rail 210 keep motionless relatively on directional guide rail 210 for the interval between each lens group 100 changes, and then reaches the effect of zooming, consequently, the function of zoom and compensation that this embodiment can realize the lens group ensures that focal plane position is unchangeable, guarantees the quality of shooing, promotes user's the experience of shooing.

A mobile phone camera comprises the periscopic lens. Therefore, the camera of the mobile phone can have all the structural characteristics and the beneficial effects of the zoom lens, and the details are not repeated herein.

In summary, the present invention provides a zoom lens, a periscopic lens and a mobile phone camera, wherein the zoom lens includes at least three lens groups 100, a connector 120, a first sleeve 200 and a second sleeve 300, the first sleeve 200 is provided with a set of directional guide rails 210, the lens groups 100 are disposed on the directional guide rails 210 through the connector 120 and move linearly along an optical main axis of the zoom lens, the second sleeve 300 is disposed on the first sleeve 200 and the lens groups 10, the second sleeve 300 rotates along the first sleeve 200, an inner wall of the second sleeve 300 is provided with a moving guide rail 310 corresponding to each lens group 100, and each moving guide rail 310 is not intersected on the second sleeve 300. The zoom lens comprises at least three lens groups, a first sleeve and a second sleeve, wherein the second sleeve is sleeved on the first sleeve, each lens group is arranged on a directional guide rail of the first sleeve, the directional guide rail is arranged in parallel with an optical main shaft of the zoom lens, the second sleeve is provided with a movable guide rail corresponding to each lens group, and each lens group is moved along the directional guide rail by rotating the second sleeve, so that the lens groups are ensured to move linearly along the optical main shaft of the zoom lens, namely, the distance between the lens groups is changed, and further, the zooming effect is achieved.

It will be understood that the invention is not limited to the examples described above, but that modifications and variations will occur to those skilled in the art in light of the above teachings, and that all such modifications and variations are considered to be within the scope of the invention as defined by the appended claims.

Claims

1. A zoom lens, comprising:

at least three lens groups;

the connecting pieces are arranged on the lens groups respectively;

the second sleeve is arranged on the first sleeve and the lens groups and rotates along the first sleeve, a moving guide rail corresponding to each lens group is arranged on the inner wall of the second sleeve, and the connecting piece moves linearly along the optical main shaft of the zoom lens through the rotation of the second sleeve;

the number of the lens groups is three, namely the lens group is provided with a first lens group, a second lens group and a third lens group; the lens of the first lens group is a first convex lens, the lens of the second lens group is a first concave lens, and the lens of the third lens group is a second convex lens;

the second sleeve is respectively provided with a first movable guide rail corresponding to the first lens group, a second movable guide rail corresponding to the second lens group and a third movable guide rail corresponding to the third lens group;

the first moving guide rail is in a parabolic shape, the second moving guide rail is in a spiral shape, and the third moving guide rail is arranged in a circular ring shape; and the moving guide rails on the second sleeve are not intersected;

and rotating the second sleeve, keeping the third lens group relatively immobile on the directional guide rail, linearly moving the second lens group towards one side of the third lens group, linearly moving the first lens group away from one side of the second lens group, moving the first lens group towards one side of the second lens group, and finally returning to the original point position of the first lens group.

2. The zoom lens according to claim 1, wherein a driving gear is provided on an outer wall of the second sleeve, and a thumb wheel is connected to the driving gear.

3. The zoom lens as claimed in claim 1, wherein a driving gear is provided on an outer wall of the second sleeve, and a driving motor is connected to the driving gear.

4. The zoom lens according to claim 1, wherein the second sleeve includes:

the device comprises at least two barrel plates, wherein the barrel plates are arranged in an equal arc length mode.

5. The zoom lens according to claim 4, wherein the moving guide at the same position on each of the barrel plates is the same.

6. The zoom lens of claim 1, wherein the connector comprises:

the lens group is embedded in the lens base;

7. Periscopic lens, characterized in that it comprises a zoom lens according to any of claims 1 to 6.

8. A cell phone camera, comprising the periscopic lens of claim 7.