CN208506367U

CN208506367U - The optical lens of iris ring

Info

Publication number: CN208506367U
Application number: CN201820421612.1U
Authority: CN
Inventors: 陈振宇; 孙鑫翔
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2019-02-15
Anticipated expiration: 2028-03-27

Abstract

The utility model discloses a kind of optical lens of iris ring.The optical lens of the iris ring includes: camera lens；Diaphragm is set to above the camera lens, has the light hole opposite with the camera lens, and light enters the camera lens after the light hole；And driving unit, for driving the diaphragm to be subjected to displacement relative to the camera lens, so that the distance between at least part of the light hole and the camera lens change on the direction along optical axis.The optical lens of iris ring provided by the utility model is advantageously implemented miniaturization, and the optional range of f-number is big.

Description

The optical lens of iris ring

Technical field

The utility model relates to optical lens technology field more particularly to a kind of optical lens of iris ring.

Background technique

Currently, the thickness of mobile device is more and more thinner, when camera and other equipment (such as mobile phone, tablet computer) are whole When being combined together, the size needs of camera are as small as possible, to be adapted for mount to thinner mobile device, therefore will sacrifice The function of camera, such as iris ring, optical zoom.

In order to increase user experience, the method adjusted in mobile device with software realizes " iris ring ", due to this Belong to and the bright dark degree of image is adjusted by the image processing algorithm later period and realizes the adjustment of the depth of field, actual effect is not that It is ideal.And iris ring is realized in structure, by adjusting iris diaphragm structure size control camera obtain light-inletting quantity it is big Small, not only the effect of image is good, can also control the depth of field of camera, and background blurring effect is prominent, possibly even accomplishes very Good " portrait mode of figure " shooting.

The camera lens of iris ring in the prior art realizes the change of light passing amount mainly by changing the aperture of aperture.Its Middle major part is the position by changing aperture blades, realizes the variation of stop opening, and there are also be that two are arranged in camera lens Or the aperture that multiple apertures are different, the aperture of different pore size is moved at optical axis as needed.But whether which kind of is tied Structure, existing iris ring volume is generally larger, furthermore adds driving mechanism, so that the camera lens with iris ring function Volume is larger, is unfavorable for the miniaturization of camera module.

Utility model content

For overcome the deficiencies in the prior art, one of the utility model is designed to provide a kind of optics of iris ring Camera lens, the light-inletting quantity of adjustable lens.

Another of the utility model is designed to provide a kind of optical lens of iris ring, and aperture thickness reduces, has Conducive to the miniaturization of optical lens.

Another of the utility model is designed to provide a kind of optical lens of iris ring, is not changing iris diaphragm structure Under the premise of realize light-inletting quantity change, to realize the simplification of iris diaphragm structure.

Another of the utility model is designed to provide a kind of camera shooting mould of optical lens including above-mentioned iris ring Group.

Another of the utility model is designed to provide a kind of the portable of the optical lens including the iris ring Mobile electronic device.

In order to achieve the above object, the utility model provides a kind of optical lens of iris ring, comprising:

Camera lens；

Diaphragm is set to above the camera lens, has the light hole opposite with the camera lens, and light passes through the light hole Enter the camera lens afterwards；And

Driving unit, for driving the diaphragm to be subjected to displacement relative to the camera lens, so that the light hole is extremely The distance between few a part and the camera lens change on the direction along optical axis.

The internal diameter of the light hole of the diaphragm is fixed, when the distance between the light hole and the camera lens are minimum, institute The light-inletting quantity for stating camera lens is maximum；When the distance between the light hole and the camera lens increase, relative to inclined light shaft angle Biggish some light is blocked by the edge of the light hole, therefore the light-inletting quantity of the camera lens is reduced.The utility model passes through Diaphragm is adjusted at a distance from camera lens, realizes the adjustment of light-inletting quantity, namely realizes the variable of aperture.

Since the diaphragm of the utility model only needs to form light hole on thin slice, the volume pole occupied It is small, be conducive to the miniaturization of optical lens.In addition, the utility model is different from the method for diaphragm internal diameter is changed in the prior art, The internal diameter of the light hole of the diaphragm is fixed, and simply by the distance between the light hole and the camera lens is changed, realizes institute The change for stating camera lens light-inletting quantity greatly simplifies the structure of diaphragm, advantageously reduces the production cost of diaphragm.

In addition multiple embodiments according to the present utility model, the driving unit is set to the upper surface of the camera lens, described Driving unit is suitable for deforming when temperature or electric current change, and the diaphragm is installed on the driving unit, thus the light Door screen is moved with the deformation of the driving unit.

In addition multiple embodiments according to the present utility model, the optical lens of the iris ring further includes diaphragm setting knot Structure, the diaphragm is slidably retained above the camera lens by the diaphragm setting structure, when the driving unit does not act on When the diaphragm, the diaphragm is maintained at initial position by the diaphragm setting structure, when the driving unit acts on institute When stating diaphragm, the diaphragm setting structure allows the diaphragm to be subjected to displacement under the action of the driving unit.

One embodiment according to the present utility model, the diaphragm setting structure includes elastic element, and the camera lens includes Lens barrel and the eyeglass being arranged in the lens barrel, the elastic element are set between the diaphragm and the lens barrel.

Further, the diaphragm include light-blocking face above the lens barrel and from the edge in the light-blocking face to The side of lower extension, the side surrounds the outside that the lens barrel is arranged in, so that the displacement of the diaphragm is by the lens barrel Limit, the light hole are formed on the light-blocking face.

One embodiment according to the present utility model, the diaphragm setting structure include that the 7th magnetic field of fixed setting occurs Device, the 7th field generator for magnetic is opposite with the diaphragm, and the diaphragm is opposite with the 7th field generator for magnetic Part is ferromagnetic material, and the 7th field generator for magnetic is magnet, is filled using the diaphragm and the 7th magnetic field The diaphragm is maintained at fixed position by the magnetic attracting force between setting, and the driving unit includes the 8th field generator for magnetic, 8th field generator for magnetic and the 7th field generator for magnetic are relatively set to the diaphragm, and the 8th magnetic field occurs Device selectively generates magnetic field, so that the magnetic field generated by changing the 8th field generator for magnetic, drives the diaphragm It is moved along optical axis；Or the diaphragm setting structure include the 7th magnet generating device being arranged on the diaphragm and The ferromagnetic material being fixed on the outside of the diaphragm, using the 7th field generator for magnetic and the ferromagnetic material it Between magnetic attracting force the diaphragm is maintained at fixed position, the driving unit includes the 8th field generator for magnetic, described 8th field generator for magnetic is oppositely disposed with the 7th field generator for magnetic, and the 8th field generator for magnetic is selectively Magnetic field is generated, so that the magnetic field generated by changing the 8th field generator for magnetic, drives the diaphragm to move along optical axis It is dynamic.

Further, ball is equipped between the diaphragm and the shell, the outer wall of the diaphragm and the shell Inner wall is respectively formed the guide rail for installing the ball, so that the moving direction of the diaphragm is limited by the guide rail.

One embodiment according to the present utility model, the diaphragm include light-blocking face above the camera lens and from The side that the edge in the light-blocking face extends downwardly, the side is around on the outside of the camera lens, the side of the diaphragm and institute The gravity that the frictional force between camera lens is greater than the diaphragm is stated, the driving unit overcomes between the diaphragm and the camera lens Frictional force is to drive the diaphragm.

Multiple embodiments according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, the diaphragm include light-blocking face above the lens barrel and the side extended downwardly from the edge in the light-blocking face, The light hole is formed on the light-blocking face, and the driving unit includes at least three field generator for magnetic, wherein described in one Field generator for magnetic is set to the side of the diaphragm, and a field generator for magnetic is set to the side wall of the lens barrel, remaining is at least One field generator for magnetic, which surrounds, to be arranged on the outside of the diaphragm and the camera lens, each magnetic of the driving unit At least there are two magnetic field is selectively generated in the generating device of field, thus by changing between each field generator for magnetic Magneticaction drives the camera lens or the diaphragm to move along optical axis.

Multiple embodiments according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, the diaphragm include light-blocking face above the lens barrel and the side extended downwardly from the edge in the light-blocking face, The light hole is formed on the light-blocking face, and the driving unit includes two field generator for magnetic, wherein the magnetic field Generating device is set to the side of the diaphragm, and another field generator for magnetic is set to the lens barrel outer wall or around setting in institute The outside of diaphragm is stated, at least one in two field generator for magnetic selectively generates magnetic field, thus by changing two institutes The magneticaction between field generator for magnetic is stated, the diaphragm is driven to move along optical axis.

One embodiment according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, the diaphragm are cyclic structure, and the driving unit includes mounting portion, thermal deformation piece and suitable for making the thermal deformation piece temperature Raised electroheat member is spent, the upper surface of the lens barrel is arranged in the mounting portion, and the rear end of the thermal deformation piece is set to institute Mounting portion is stated, front end vacantly extends forward, and the diaphragm is connect with the front end of the thermal deformation piece, so that the diaphragm Light hole is opposite with the eyeglass in the lens barrel, and the electroheat member makes the thermal deformation piece be heated and occur curved when being powered Song, so that the diaphragm be driven to be subjected to displacement along optical axis.

Further, the mounting portion is annular, and the driving unit includes multiple thermal deformation pieces, each heat Deformation sheet is arranged on the different directions of the mounting portion, and the upward thermal deformation piece of each party controls the diaphragm in the party Upward displacement, the thermal deformation piece on different directions individually controls, so that the diaphragm can in the displacement of different directions Individually control.

One embodiment according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, the diaphragm are cyclic structure, and the driving unit includes mounting portion and piezoelectric structure, and the mounting portion is arranged described The upper surface of lens barrel, the rear end of the piezoelectric structure are installed on the mounting portion, and front end vacantly extends forward, the diaphragm with The front end of the piezoelectric structure connects so that the light hole of the diaphragm is opposite with the eyeglass, the piezoelectric structure and Power electric connection, when energization, the piezoelectric structure bent, and the diaphragm is driven to be subjected to displacement along optical axis.

One embodiment according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, the diaphragm are cyclic structure, and the driving unit includes cricoid encapsulation part, multiple fixed polar plates and multiple movable poles The upper surface of the lens barrel is arranged in plate, the encapsulation part, and each fixed polar plate is mounted on the inner annular edge of the encapsulation part, Each fixed polar plate is electrically connected to a power source, and each movable plate is arranged between the fixed polar plate, and it is each it is described can The different directions of the encapsulation part are arranged in movable plate electrode, and the edge of the diaphragm is connect with each movable plate, when described solid When fixed plate is powered, electric field is generated between each fixed polar plate, changing electric field strength can drive the movable plate to move Dynamic, so that the diaphragm be driven to move along optical axis, the displacement of each movable pole piece is individually controlled, so that the diaphragm exists The displacement of different directions can be controlled separately.

Further, the optical lens of the iris ring further includes the lens driving list for driving the camera lens mobile Member.

One embodiment according to the present utility model, the camera lens include lens barrel and the mirror that is arranged in the lens barrel Piece, is equipped with elastic element between the diaphragm and the lens barrel, the driving unit includes multiple SMA driving lines, each SMA One end of driving line is connect with the diaphragm, and the other end is connect with the pedestal of the optical lens, when the SMA driving line is powered It shrinks, so that the diaphragm be driven to be subjected to displacement.

Further, two SMA driving lines, every side are respectively equipped in the opposite side of the diaphragm at least two The SMA driving line of the two of face symmetrically tilts the pedestal for extending to the optical lens, each side from the both ends of the diaphragm The SMA driving line in face individually controls, so that the displacement of each side of the diaphragm can be adjusted as needed, with So that the diaphragm can be moved along optical axis or the relatively described camera lens run-off the straight.

The utility model also provides a kind of camera module of optical lens including the iris ring.

The utility model also provides a kind of Portable mobile electronic device of optical lens including the iris ring.

Compared with prior art, the utility model has the beneficial effects that: the optics of iris ring provided by the utility model Camera lens is advantageously implemented miniaturization, is suitable for small-sized or miniature video camera mould group；The optical lens of the iris ring of the utility model The optional range of different f-number namely f-number can be selected big in a certain range；It is provided by the utility model can " the radian depth of field " may be implemented in the optical lens of darkening circle, can bring and highlight main body, background blurring effect well；It uses The optical lens of the iris ring of the utility model can also obtain the different image of two sides clarity, provide more for cameraman More selections；The method that the utility model adjusts optical lens light-inletting quantity is simply easily operated, is a kind of change lens aperture value New approaches.

Detailed description of the invention

Fig. 1 is the schematic diagram of a preferred embodiment of the utility model, and wherein driving unit is not shown；

Fig. 2A is the light path schematic diagram of a preferred embodiment of the utility model, it is shown that the state of minimum aperture；

Fig. 2 B is the light path schematic diagram of a preferred embodiment of the utility model, it is shown that the state of maximum ring；

Fig. 2 C shows that from initial position the mobile distance pass between aperture size and the depth of field respectively occurs for diaphragm System.

The light path schematic diagram of Fig. 3 A, the preferred embodiment that 3B, 3C are the utility model, it is shown that light source and optical axis it Between distance increase when, the variation of Space Angle and light-inletting quantity；

Fig. 4 A is the schematic diagram in focal plane and its section, it is shown that the effect of " the arc depth of field "；

Fig. 4 B is the three-dimensional expression figure of " the arc depth of field "；

Fig. 4 C is the top view of " the arc depth of field " three-dimensional expression figure, and Fig. 4 D is the main view of " the arc depth of field " three-dimensional expression figure Figure, Fig. 4 E are the side view of " the arc depth of field " three-dimensional expression figure；

Fig. 5 is the schematic diagram of a preferred embodiment of the utility model, it is shown that diaphragm is relative to camera lens run-off the straight；

When Fig. 6 A is that diaphragm is tilted relative to camera lens, the top view of depth of field variation effect solid expression, Fig. 6 B is diaphragm phase When for camera lens inclination, the main view of depth of field variation effect solid expression, when Fig. 6 C is that diaphragm is tilted relative to camera lens, the depth of field becomes Change the left view of effect solid expression；

Fig. 7 is the schematic diagram of the embodiments of the present invention 1；

Fig. 8 is the schematic diagram of the embodiments of the present invention 2；

Fig. 9 is the schematic diagram of the embodiments of the present invention 3；

Figure 10 is the schematic diagram of the embodiments of the present invention 4；

Figure 11 is the schematic diagram of the embodiments of the present invention 5；

Figure 12 is the schematic diagram of the embodiments of the present invention 6；

Figure 13 is the schematic diagram of the embodiments of the present invention 7；

Figure 14 is the schematic diagram of the embodiments of the present invention 8；

Figure 15 is the schematic diagram of the embodiments of the present invention 9；

Figure 16 is the schematic diagram of the embodiments of the present invention 10；

Figure 17 is the partial enlarged view of embodiment 10；

Figure 18 is the partial schematic diagram of embodiment 10, it is shown that mounting portion and thermal deformation piece；

Figure 19 is the partial enlarged view of embodiment 10, it is shown that the schematic diagram of thermal deformation piece deformation；

Figure 20 is the schematic diagram of the embodiments of the present invention 11；

Figure 21 is the schematic diagram of the embodiments of the present invention 12；

Figure 22 is the partial enlarged view of embodiment 12；

Figure 23 is the partial schematic diagram of embodiment 12, it is shown that encapsulation part, fixed pole piece, movable pole piece and diaphragm；

Figure 24 is the partial enlarged view of embodiment 12, it is shown that the schematic diagram that movable pole piece is subjected to displacement；

Figure 25 is the schematic diagram of the embodiments of the present invention 13；

Figure 26 is the schematic diagram of the embodiments of the present invention 14；

Figure 27 is the schematic diagram of the embodiments of the present invention 14, it is shown that ball and guide rail；

Figure 28 is the main view of the embodiments of the present invention 15；

Figure 29 is the side view of the embodiments of the present invention 15；

Figure 30 is the top view of the embodiments of the present invention 15；

Figure 31 is the top view of a deformation of the embodiments of the present invention 15；

Figure 32 is the schematic diagram of a preferred embodiment of the utility model.

Specific embodiment

In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

The optical lens of iris ring provided by the utility model, including camera lens 1, diaphragm 2 and driving unit 3.Diaphragm 2 Above camera lens 1, diaphragm 2 has the light hole 20 opposite with camera lens 1, and extraneous light enters camera lens 1 after light hole 20, Driving unit 3 for driving diaphragm 2 to be subjected to displacement relative to camera lens 1 so that at least part of light hole 20 and camera lens 1 it Between distance change on the direction along optical axis.

The optical lens of the utility model iris ring is realized by changing the distance between light hole 20 and camera lens 1 The change of 1 light-inletting quantity of camera lens, and then achieve the effect that iris ring.

The change of distance includes two kinds of situations between light hole 20 and camera lens 1: a kind of situation is whole along optical axis side for diaphragm 2 To when moving namely diaphragm 2 is mobile, the variation of distance is equal between the various pieces and camera lens 1 of light hole 20；It is another Situation is diaphragm 2 relative to 1 run-off the straight of camera lens, and the variation of the distance between the side of light hole 20 and camera lens 1 is big, the other side and The variation of the distance between camera lens 1 is small, so that the variation of 1 two sides light passing amount of camera lens is not identical, and then obtains two when diaphragm 2 tilts The different image of side clarity.

Diaphragm 2 is whole when moving along optical axis direction, the principle that aperture changes refer to Fig. 2A, Fig. 2 B, Fig. 2 C: Fig. 2A, In Fig. 2 B, the relative position between light source and camera lens 1 is constant, (such as Fig. 2A when the distance between diaphragm 2 and camera lens 1 are maximum It is shown), the light quantity that camera lens 1 receives light source is I₁, Space Angle θ₁, when the distance between diaphragm 2 and camera lens 1 are minimum (as schemed Shown in 2B), the light quantity that camera lens 1 receives light source is I₂, Space Angle θ₂, θ₂> θ₁, I₂Compare I₁The light quantity of dotted portion has been had more, That is, the light-inletting quantity of camera lens 1 is bigger than the light-inletting quantity of camera lens in a state of fig. 2 in the state of Fig. 2 B, diaphragm 2 is from camera lens 1 Aperture is minimum when farthest, and as the distance between diaphragm 2 and camera lens 1 reduce, aperture size is become larger, and diaphragm 2 is most from camera lens 1 Aperture is maximum when close.Each value of diaphragm 2 and 1 spacing distance of camera lens all corresponds to a f-number, therefore by adjusting diaphragm 2 The distance between camera lens 1, it can obtain desired f-number.

Fig. 2A, Fig. 2 B also show aperture variation front and back, the situation of change of the depth of field at same position: when original state, lead to The distance between unthreaded hole 20 and camera lens 1 are maximum (as shown in Figure 2 A), and light-inletting quantity is minimum at this time, and lens aperture is minimum, and the depth of field is most Greatly；When the distance between through-hole light 20 and camera lens 1 are minimum (as shown in Figure 2 B), the light-inletting quantity of light source increases at same position, The distance between front and back blur circle reduces namely the depth of field becomes smaller.

Fig. 2 C shows that the relationship between mobile distance and aperture size and the depth of field occurs from initial position for diaphragm 2. Wherein the initial position of diaphragm 2 is the position of separate camera lens 1 as shown in Figure 2 A, when the distance between diaphragm 2 and camera lens 1 most Greatly namely when 2 moving distance minimum of diaphragm, light-inletting quantity and aperture are minimum, and the depth of field is maximum at this time；As diaphragm 2 is to camera lens 1 Direction is mobile, and the moving distance of diaphragm 2 becomes larger, and light-inletting quantity and aperture become larger, and the depth of field gradually becomes smaller, light-inletting quantity and light The variation of size is enclosed with reference to the block curve in Fig. 2 C, the variation of the depth of field is with reference to the dashed curve in Fig. 2 C.It is noted that Light-inletting quantity and the depth of field variation shown in Fig. 2 C is for the same position in image.

The optical lens of the iris ring can also realize " arc by adjusting the distance between light hole 20 and camera lens 1 The effect of the degree depth of field ", namely it is outside by picture center in the picture, the depth of field gradually changes.

Fig. 3 A, 3B, 3C show the principle of realization " the radian depth of field ": as light source increases from optical axis distance D, light source pair The Space Angle θ of camera lens can be smaller and smaller, as shown in Fig. 3 A, 3B, 3C, θ₃> θ₄> θ₅；As diaphragm 2 is transported downwards along optical axis direction Dynamic, aperture becomes larger, and the Space Angle θ of the light source of same position can also become larger, with the increase of distance D, the variation of Space Angle θ Value is also increasing, that is, causes each position depth of field pace of change different, and when distance D is zero, the pace of change of Space Angle θ is minimum, The value of distance D is bigger, and the pace of change of Space Angle θ is bigger.In other words, during diaphragm 2 is mobile, at optical axis The depth of field of image changes minimum, and the image closer to edge, depth of field variation is bigger, therefore in the image finally presented, by Picture center is outside, and the depth of field is gradually reduced.Therefore, when obtaining image, move diaphragm 2 along the direction of optical axis direction camera lens 1, i.e., It can get the image with " the radian depth of field " effect.

As shown in Figure 4 A, the concentric loop in focal plane represents the depth of field, and the horizontal line in the section of focal plane represents depth of field size, " the radian depth of field " can be brought highlights main body, background blurring effect well.

Fig. 4 B is the three-dimensional expression of the arc depth of field, and appearance is thick middle, the patty of thin edge, solid can be expressed The thickness of figure is considered as the depth of field.Fig. 4 C is the top view of three-dimensional expression figure, indicates that circular picture, Fig. 4 D are the master of three-dimensional expression figure View, height indicate depth of field size, and Fig. 4 E is the side view of three-dimensional expression figure.It can visually see, draw by Fig. 4 B- Fig. 4 E The center thickness in face is maximum namely the depth of field at picture center is big, be gradually reduced by the outside thickness in the center of picture namely the depth of field by It is decrescence small, and the variation of the depth of field be it is nonlinear, closer to edge, the variation of the depth of field is bigger.

When diaphragm 2 is relative to 1 run-off the straight of camera lens, as shown in figure 5, the distance between the side of light hole 20 and camera lens 1 Variation is big namely the light-inletting quantity variation of the side greatly, the distance between the other side of light hole 20 and camera lens 1 vary less, namely The light-inletting quantity variation of the side is small, due to the figure that the variation of two sides light-inletting quantity is different, and available side is clear, side is fuzzy Picture.

Fig. 6 A is the top view of depth of field solid expression when diaphragm 2 tilts, and indicates that circular picture, Fig. 6 B are that the depth of field is three-dimensional The main view of expression, height indicate depth of field size, and Fig. 6 C is the left view of depth of field solid expression.It can be straight by Fig. 6 A, 6B, 6C It sees ground and finds out that outside by picture center, the depth of field of side is gradually reduced, and the depth of field of the other side does not change substantially.

Driving unit 3 can be voice coil motor (VCM), micro machine driver (MEMS), memory alloy actuator (SMA) etc. The structure that diaphragm 2 or camera lens 1 can be driven to move.The specific embodiment of driving unit 3 is specifically retouched in following embodiment It states.

Further, the optical lens of the iris ring further includes diaphragm setting structure 4, and diaphragm setting structure 4 is used for Diaphragm 2 is slidably retained to the top of camera lens 1.When driving unit 3 does not act on diaphragm 2, diaphragm 2 is by diaphragm setting knot Structure 4 is maintained at initial position；When driving unit 3 acts on diaphragm 2, diaphragm setting structure 4 allows diaphragm 2 to be subjected to displacement.

Diaphragm setting structure 4 can be elastic element, so that diaphragm 2 is maintained at camera lens 1 by the elastic force using elastic element Top, driving unit 3 overcomes the elastic force of elastic element to keep diaphragm 2 mobile；Diaphragm setting structure 4 is also possible to guide rail structure, To which diaphragm 2 to be maintained to the top of camera lens 1 using the frictional force between diaphragm 2 and guide rail structure, driving unit 3 overcomes diaphragm Frictional force between 2 and guide rail structure moves diaphragm 2 along guide rail structure；Diaphragm setting structure 4 can also be magnetic texure, benefit Diaphragm 2 is maintained to the top of camera lens 1 with the magnetic attracting force between magnetic texure and diaphragm 2, driving unit 3 overcomes magnetic suction Gravitation moves diaphragm 2.It is specifically described in the specific embodiment following examples of diaphragm setting structure 4.

Certainly, in some embodiments, it is also possible to not include diaphragm setting structure 4, diaphragm 2 is positioned by driving unit 3, and It is moved with the movement of driving unit 3, specific embodiment is shown in embodiment 7, embodiment 10, embodiment 11.

[embodiment 1]

As shown in fig. 7, provide a kind of optical lens of iris ring, including camera lens 1, diaphragm 2A, driving unit 3A and Diaphragm setting structure 4A.Diaphragm 2A is set to 1 top of camera lens, and diaphragm 2A has the light hole 20 opposite with camera lens 1, and light hole 20 rises To the effect of limitation light, extraneous light enters camera lens 1 after light hole 20, and driving unit 3A is for driving diaphragm 2A along mirror First 1 optical axis direction is mobile.

Camera lens 1 includes lens barrel 11 and the eyeglass 12 being arranged in lens barrel 11.Diaphragm 2A includes set on 11 top of lens barrel Light-blocking face 21 and the side 22 extended downwardly from the edge in light-blocking face 21.Light hole 20 is formed in light-blocking face 21, external light Line directive eyeglass 12 after light hole 20.The side 22 of diaphragm 2A extends to the outside of lens barrel 11, thus when diaphragm 2A is mobile When, side 22 is moved along the outer wall of lens barrel 11.In other words, camera lens 11 plays the role of guiding to the movement of diaphragm 2A, guarantees Diaphragm 2A is moved along the direction of optical axis always when moving.

Driving unit 3A is embodied as voice coil motor comprising: around the motor being arranged on the outside of lens barrel 11 and diaphragm 2A Shell 39；First field generator for magnetic 31 of the side 22 of diaphragm 2A is set；The second magnetic field hair of 11 side wall of lens barrel is set Generating apparatus 32；And the third field generator for magnetic 33 of 39 inner wall of motor shell is set.At least two magnetic fields of driving unit 3A Generating device selectively generates magnetic field, to drive mirror by changing the magneticaction between each field generator for magnetic First 1 or diaphragm 2A is moved along optical axis.

Driving unit 3A provided in this embodiment not only can drive diaphragm 2A to move along optical axis direction, to change aperture, also Camera lens 1 can be driven to move along optical axis direction, to realize focusing.The present embodiment is whole by the function of iris ring and auto-focusing It closes, realizes the function of iris ring using the existing structure of optical lens as far as possible, advantageously ensure that the miniaturization of optical lens, Avoid increasing the volume of optical lens.

The position of lens barrel 11 on the lower is arranged in second field generator for magnetic 32, when being moved to avoid diaphragm 2A along lens barrel 11, It is interfered with the second field generator for magnetic 32.

First field generator for magnetic 31 and the second field generator for magnetic 32 are coil, when the coil is energized, the first magnetic field Generating device 31, the second field generator for magnetic 32 generate magnetic field；Third field generator for magnetic 33 is magnet, its own generates magnetic , and after the structure determination of magnet, magnetic field is not selectable.First field generator for magnetic 31 and the second field generator for magnetic 32 be individually control, when needing to change f-number, the first field generator for magnetic 31 is made to be powered, the first field generator for magnetic 31 produces The magnetic field interaction in raw magnetic field and third field generator for magnetic 33 applies active force to diaphragm 2, makes diaphragm 2 along optical axis It is mobile；When needing to realize the focusing of camera lens 1, the second field generator for magnetic 32 is made to be powered, the second field generator for magnetic 32 generates Magnetic field and third field generator for magnetic 33 magnetic field interaction, the power that moves along optical axis direction, Jin Ershi are applied to camera lens 1 The focusing of existing camera lens 1, when camera lens 1 is mobile, diaphragm 2 is moved.

It is noted that realizing that the focusing of camera lens is the prior art using voice coil motor, therefore no longer it is described in detail herein real The specific structure that existing camera lens 1 is focused only describes how driving unit 3A to be utilized to apply driving force to camera lens 1.

Aperture location structure 4A includes set on the elastic element 41 between diaphragm 2A and camera lens 1, and elastic element 41 is spring Piece.Elastic element 41 is suitable for holding it away from diaphragm 2A the position of camera lens 1.Namely in initial position, diaphragm 2A and camera lens 1 The distance between maximum, be minimum aperture；By adjusting between the first field generator for magnetic 31 and other field generator for magnetic Magneticaction applies the power mobile to 1 direction of camera lens to diaphragm 2A, when the elastic force of magneticaction and elastic element 41 reaches balance When, diaphragm 2A is maintained at fixed position, to realize the change of f-number；When needing to be returned to minimum aperture, is removed Magneticaction between one field generator for magnetic 31 and other field generator for magnetic, diaphragm 2A are multiple under the action of elastic element 41 Position.

Elastic element 41 is arranged between the upper surface of lens barrel 11 and the light-blocking face 21 of diaphragm 2.

[embodiment 2]

As shown in figure 8, provide a kind of optical lens of iris ring, including camera lens 1, diaphragm 2A, driving unit 3B and Diaphragm setting structure 4B.

The camera lens 1 of embodiment 2 and the structural reference embodiment 1 of diaphragm 2A, the difference of embodiment 2 and embodiment 1 It is driving unit and diaphragm setting structure.

In example 2, driving unit 3B includes: around the motor shell being arranged on the outside of lens barrel 11 and diaphragm 2A 39；First field generator for magnetic 31 of the side 22 of diaphragm 2A is set；The second magnetic field that 11 side wall of lens barrel is arranged in fills Set 32；And the third field generator for magnetic 33 of 39 inner wall of motor shell is set.Wherein, the first field generator for magnetic 31 and Three field generator for magnetic 33 are coil, and when the coil is energized, the first field generator for magnetic 31, third field generator for magnetic 33 produce Magnetisation field；Second field generator for magnetic 32 is magnet, its own generates magnetic field.First field generator for magnetic 31 is sent out with third magnetic field Generating apparatus 33 is individually control, when needing to change aperture, respectively fills the first field generator for magnetic 31 and third magnetic field 33 energizations are set, the magnetic field interaction that the magnetic field and third field generator for magnetic 33 that the first field generator for magnetic 31 generates generate, Active force is applied to diaphragm 2, diaphragm 2 is moved along optical axis；When needing to realize the focusing of camera lens 1, fill third magnetic field 33 energizations are set, the magnetic field interaction in magnetic field and the second field generator for magnetic 32 that third field generator for magnetic 33 generates, to mirror First 1 applies the power moved along optical axis direction, and then realizes the focusing of camera lens 1.

It is noted that when the first field generator for magnetic 31 and third field generator for magnetic 33 are powered, control the The turn on angle of three field generator for magnetic 33, to guarantee the magnetic between third field generator for magnetic 33 and the second field generator for magnetic 32 Power effect is not enough to that camera lens 1 is driven to be subjected to displacement, to avoid the mobile caused error of camera lens 1 when adjustment aperture.

In example 2, the elastic element 41 of diaphragm setting structure 4B is the colloidal material with elastic deformation ability.Light Late location structure 4B further includes the installation base 42 for being formed in the side wall of lens barrel 11, the side 22 of installation base 42 and diaphragm 2A Bottom is opposite, and elastic element 41 is arranged between the bottom of the side 22 of installation base 42 and diaphragm 2.

[embodiment 3]

As shown in figure 9, provide a kind of optical lens of iris ring, including camera lens 1, diaphragm 2A, driving unit 3C and Diaphragm setting structure 4A.

The structural reference embodiment 1 of the camera lens 1 of embodiment 3, diaphragm 2A and diaphragm setting structure 4A, embodiment 3 and real Example 1 is applied the difference is that driving unit.

In embodiment 3, driving unit 3C includes: around the motor shell being arranged on the outside of lens barrel 11 and diaphragm 2A 39；First field generator for magnetic 31 of the side 22 of diaphragm 2A is set；The second magnetic field that 11 side wall of lens barrel is arranged in fills Set 32；And the third field generator for magnetic 33 of 39 inner wall of motor shell is set.Wherein, the first field generator for magnetic 31 is magnetic Iron, its own generates magnetic field；Second field generator for magnetic 32 and third field generator for magnetic 33 are coil, when coil is powered When, the second field generator for magnetic 32, third field generator for magnetic 33 generate magnetic field.Second field generator for magnetic 32 and third magnetic field Generating device 33 is individually control, when needing to change aperture, so that third field generator for magnetic 33 is powered, the first magnetic field fills 31 magnetic field and the magnetic field interaction of the generation of third field generator for magnetic 33 are set, active force is applied to diaphragm 2, makes 2 edge of diaphragm Optical axis it is mobile；When needing to realize the focusing of camera lens 1, keep the second field generator for magnetic 32, third field generator for magnetic 33 logical Electricity, the magnetic field interaction in the magnetic field of third field generator for magnetic 33 and the second field generator for magnetic 32 apply along light camera lens 1 The power of axis direction movement, and then realize the focusing of camera lens 1.

It is noted that when the second field generator for magnetic 32 and third field generator for magnetic 33 are powered, control the The turn on angle of three field generator for magnetic 33 guarantees the magnetic force between third field generator for magnetic 33 and the first field generator for magnetic 31 Effect is not enough to that diaphragm 2 is driven to be subjected to displacement, to avoid the mobile caused error of diaphragm 2 when focusing.

In embodiment 1-3, driving unit 3 includes three field generator for magnetic, for driving and the diaphragm for realizing camera lens 1 2 driving, at least two field generator for magnetic selectively generate magnetic field namely its magnetic field generated and can according to need and become Change, so that the object driven as needed, changes the magneticaction between corresponding field generator for magnetic, is driven by the magnetic force of generation Index glass head 1 or diaphragm 2A are moved along optical axis.Of course, it is possible to three field generator for magnetic are coil, it is contemplated that at The convenience of this and control, the mode of being preferably carried out is that two field generator for magnetic are coil, and a field generator for magnetic is Magnet.

[embodiment 4]

As shown in Figure 10, a kind of optical lens of iris ring is provided, including camera lens 1, diaphragm 2A, driving unit 3D and Diaphragm setting structure 4A.

The structural reference embodiment 1 of the camera lens 1 of embodiment 4, diaphragm 2A and diaphragm setting structure 4A, embodiment 4 and real Example 1 is applied the difference is that driving unit.

In example 4, driving unit 3D includes: around the motor shell being arranged on the outside of lens barrel 11 and diaphragm 2A 39；First field generator for magnetic 31 of the side 22 of diaphragm 2 is set；Second field generator for magnetic of 11 side wall of lens barrel is set 32；39 inner wall of motor shell is set and fourth field generator for magnetic 34 opposite with the first field generator for magnetic 31；And it sets It sets in 39 inner wall of motor shell and fiveth field generator for magnetic 35 opposite with the second field generator for magnetic.First magnetic field occurs At least one in device 31 and the 4th field generator for magnetic 34 selectively generates magnetic field, the second field generator for magnetic 32 and the 5th At least one in field generator for magnetic 35 selectively generates magnetic field, to pass through the magnetic force for changing each field generator for magnetic Effect drives camera lens 1 or diaphragm 2A to move along optical axis.

Wherein, the first field generator for magnetic 31 and the 5th field generator for magnetic 35 are magnet, its own generates magnetic field；The Two field generator for magnetic 32 and the 4th field generator for magnetic 34 are coil, when the coil is energized, the second field generator for magnetic 32 Magnetic field is generated with the 4th field generator for magnetic 34.When needing individually to change aperture, the 4th field generator for magnetic 34 is made to be powered, first The magnetic field interaction that the magnetic field of field generator for magnetic 31 and the 4th field generator for magnetic 34 generate applies active force to diaphragm 2, Move diaphragm 2 along optical axis direction；When needing individually to focus, the second field generator for magnetic 32 is set to be powered, the second magnetic field fills The magnetic field of 32 generations and the magnetic field interaction of the 5th field generator for magnetic 35 are set, the application of camera lens 1 is moved along optical axis direction Power, and then realize the focusing of camera lens 1.When completed in the ban to defocused, then needing to change aperture, due to driving unit 3D inside Through generating new magnetic field, at this time if the movement of adjustment diaphragm 2, needs basis to generate magnetic field to the electric current in corresponding coil Calibration is made, carries out realizing accurate control f-number.

In other some embodiments, the first field generator for magnetic 31 and the 5th field generator for magnetic 35 can also be Respectively coil, the second field generator for magnetic 32 and the 4th field generator for magnetic 34 are respectively magnet.It can be with the first magnetic field Generating device 31 and the second field generator for magnetic 32 are respectively magnet, and the 4th field generator for magnetic 34 and the 5th magnetic field occur Device 35 is respectively coil.Or first field generator for magnetic 31 and the second field generator for magnetic 32 be respectively coil, the 4th Field generator for magnetic 34 and the 5th field generator for magnetic 35 are respectively magnet.Specific embodiment reference implementation example 4, no longer in detail It states.

[embodiment 5]

As shown in figure 11, a kind of optical lens of iris ring is provided, including camera lens 1, diaphragm 2A, driving unit 3E and Diaphragm setting structure 4A.

The structural reference embodiment 1 of the camera lens 1 of embodiment 5, diaphragm 2A and diaphragm setting structure 4A, embodiment 5 and real Example 1 is applied the difference is that driving unit.

In embodiment 5, driving unit 3E includes: around the motor shell being arranged on the outside of lens barrel 11 and diaphragm 2A 39；First field generator for magnetic 31 of the side 22 of diaphragm 2A is set；Setting 39 inner wall of motor shell and with the first magnetic field The 6th opposite field generator for magnetic 36 of generating device 31.Wherein, the first field generator for magnetic 31 is coil, and the 6th magnetic field occurs Device 36 is magnet, when needing to change aperture, so that the first field generator for magnetic 31 is powered, the generation of the first field generator for magnetic 31 The magnetic field interaction in magnetic field and the 6th field generator for magnetic 36 applies active force to diaphragm 2A, makes diaphragm 2A along optical axis direction It is mobile.

[embodiment 6]

As shown in figure 12, a kind of optical lens of iris ring is provided, including camera lens 1, diaphragm 2A, driving unit 3F and Diaphragm setting structure 4A.

The structural reference embodiment 1 of the camera lens 1 of embodiment 6, diaphragm 2A and diaphragm setting structure 4A, embodiment 6 and real Example 1 is applied the difference is that driving unit.

In embodiment 6, driving unit 3F includes: around the motor shell being arranged on the outside of lens barrel 11 and diaphragm 2A 39；First field generator for magnetic 31 of the side 22 of diaphragm 2A is set；Setting 39 inner wall of motor shell and with the first magnetic field The 6th opposite field generator for magnetic 36 of generating device 31.Wherein, the first field generator for magnetic 31 is magnet, and the 6th magnetic field occurs Device 36 is coil, when needing to change aperture, so that the 6th field generator for magnetic 36 is powered, the magnetic field of the first field generator for magnetic 31 The magnetic field interaction generated with the 6th field generator for magnetic 36 applies active force to diaphragm 2A, makes diaphragm 2A along optical axis direction It is mobile.

[embodiment 7]

As shown in figure 13, a kind of optical lens of iris ring, including camera lens 1, diaphragm 2A and driving unit 3F are provided.

The structural reference embodiment 6 of the driving unit 3F of embodiment 7.Details are not described herein again.

In embodiment 7, side 22 is centered around the outside of lens barrel 11, and contacts between side 22 and lens barrel 11, side 22 Frictional force between lens barrel 11 is greater than the gravity of diaphragm 2A, so that diaphragm 2A can be maintained on lens barrel 11 using frictional force. When driving unit 3F drives diaphragm 2A, the frictional force between diaphragm 2A and lens barrel 11 is overcome to the diaphragm 2A external force applied, makes light Late 2A is subjected to displacement along lens barrel 11.Be worth mentioning when, the optical axis coincidence of the central axis of lens barrel 11 and camera lens 1, lens barrel 11 plays The effect of guiding guarantees that diaphragm 2A is moved along optical axis always.

In this embodiment, it does not need to increase diaphragm setting structure 4, the whole knot of camera lens can be simplified to a certain extent Structure.

[embodiment 8]

As shown in figure 14, a kind of optical lens of iris ring is provided, including camera lens 1, diaphragm 2A, driving unit 3G and Diaphragm setting structure 4A.

The structural reference embodiment 1 of the camera lens 1 of embodiment 7, diaphragm 2A and diaphragm setting structure 4A, embodiment 7 and real Example 1 is applied the difference is that driving unit.

In embodiment 7, driving unit 3G includes: the first field generator for magnetic 31 that the side 22 of diaphragm 2A is arranged in； And the second field generator for magnetic 32 of 11 outer wall of lens barrel is set, the first field generator for magnetic 31 and the second magnetic field fill Set in 32 that at least a field generator for magnetic selectively generates magnetic field, thus the magnetic generated by changing the field generator for magnetic , driving diaphragm 2A is moved along optical axis.

Wherein, the first field generator for magnetic 31 is coil, and the second field generator for magnetic 32 is magnet.

[embodiment 9]

As shown in figure 15, embodiment 8 and embodiment 7 the difference is that, the first field generator for magnetic 31 is magnet, the Two field generator for magnetic 32 are coil.

[embodiment 10]

As shown in Figure 16-Figure 19, a kind of optical lens of iris ring, including camera lens 1, diaphragm 2B, driving unit are provided 3H。

Camera lens 1 includes lens barrel 11 and the eyeglass 12 that is arranged in lens barrel 11, and diaphragm 2B is cyclic structure, in diaphragm 2B Between through-hole formed light hole 20.

Driving unit 3H is embodied as the micro- electric heating driver of MEMS.Driving unit 3H includes mounting portion 301, thermal deformation piece 302 And suitable for making the raised electroheat member of 302 temperature of thermal deformation piece.The upper surface of lens barrel 11, thermal deformation is arranged in mounting portion 301 The rear end of piece 302 is set to mounting portion 301, and front end vacantly extends forward.Diaphragm 2B is connect with the front end of thermal deformation piece 302, So that the eyeglass 12 in the light hole 20 of diaphragm 2B and lens barrel 11 is opposite.Electroheat member makes thermal deformation piece 302 heated when being powered It bends, so that diaphragm 2B be driven to be subjected to displacement along optical axis.

When being bent due to 302 deformation of thermal deformation piece, limit of its rear end by mounting portion 301, therefore it can only be made Front end bends, so that diaphragm 2B be driven to be subjected to displacement.By controlling the temperature of thermal deformation piece 302, its deformation can control Amount, and then control the moving distance of diaphragm 2B.

Mounting portion 301 is annular, and driving unit 3H includes multiple thermal deformation pieces 302, and each thermal deformation piece 302 is circumferentially set The inner annular edge in mounting portion 301 is set, and the inner annular edge of each thermal deformation piece 302 from mounting portion 301 is radially inwardly extending. The outer ring edge of diaphragm 2B is connect with the front end of each thermal deformation piece 302, thus when each thermal deformation piece 302 front end upwards or to When lower bending, diaphragm 2B is moved up or down with the bending of thermal deformation piece 302 along optical axis.

Each thermal deformation piece 302 can be controlled separately, so that the deformation quantity of each thermal deformation piece 302 can be different, so that Diaphragm 2B is with respect to 1 run-off the straight of camera lens, and the variation of the distance between 20 side of light hole and camera lens 1 is big, between the other side and camera lens 1 Distance change it is small.

Thermal deformation piece 302 is at least four, and each thermal deformation piece 302 is arranged on the different directions of mounting portion 301, each Thermal deformation piece 302 on direction controls the displacement of diaphragm 2B in this direction, and the thermal deformation piece 302 on different directions is individually controlled System keeps the deformation quantity of the thermal deformation piece 302 of all directions identical when needing diaphragm 2B integrally to move along optical axis；When needing light Late 2B to when a direction run-off the straight, make thermal deformation piece 302 in this direction deformation quantity be more than or less than other directions on Thermal deformation piece 302 deformation quantity, to obtain the different image of two sides clarity.

Figure 18 shows the embodiment that multiple thermal deformation pieces 302 are successively circumferentially arranged, wherein each thermal deformation piece 302 can Individually control, thus diaphragm 2B can run-off the straight in a plurality of directions, in addition, by control thermal deformation piece 302 deformation quantity, It can control the tilt angle of diaphragm 2B.

Certainly in other examples, each thermal deformation piece 302 can not also be controlled individually, to simplify thermal deformation piece 302 displacement.In this case, the displacement of each thermal deformation piece 302 remains identical, and diaphragm 2B only occurs along optical axis Displacement, not run-off the straight.

[embodiment 11]

As shown in figure 20, embodiment 11 provides a kind of optical lens of iris ring, including camera lens 1, diaphragm 2B, driving list First 3H and lens driving unit 5.

The structural reference embodiment 10 of the camera lens 1 of embodiment 11, diaphragm 2B and driving unit 3H.

Embodiment 11 further includes the lens driving unit 5 for driving camera lens 1 mobile, and lens driving unit 5 includes driving Coil 51, drive magnet 52 and drive shell 53, drive shell 53 surround the outside that lens barrel 11 is arranged in, 51 He of driving coil Drive magnet 52 is separately positioned on the side wall of lens barrel 11 and the inner wall of drive shell 53, driving coil 51 and drive magnet 52 it Between be suitable for generating magneticaction, so that camera lens 1 be driven to move, realize and focus.

Driving unit 3 can also be embodied as MEMS piezoelectric type motor.When driving unit 3 is MEMS piezoelectric type motor, drive Moving cell 3 and the difference of embodiment 11 are, thermal deformation piece 302 is replaced with to the piezoelectric structure being made by piezoceramic material, It when piezoelectric structure is powered, bends, and then diaphragm 2 is driven to move along optical axis.

[embodiment 12]

As shown in Figure 21-Figure 24, a kind of optical lens of iris ring, including camera lens 1, diaphragm 2B, driving unit are provided 3I。

Driving unit 3I is embodied as the electrostatic motor of MEMS.Driving unit 3I includes cricoid encapsulation part 311, multiple fixations Pole plate 312 and multiple movable plates 313.The upper surface of lens barrel 11 is arranged in encapsulation part 311, and each setting of fixed polar plate 312 exists The inner annular edge of encapsulation part 311, each fixed polar plate 312 are electrically connected to a power source by conducting wire, and each movable plate 313 is arranged in fixation Between pole plate 312, when fixed polar plate 312 is powered, electric field is generated between each fixed polar plate 312, changing electric field strength can drive Movable plate 313 moves.Diaphragm 2B is connect with each movable plate 313, to drive light when movable plate 313 is mobile Late 2B is moved along optical axis.

Movable plate 313 is at least four, and each movable plate 313 is arranged on the different directions of encapsulation part 311, each party Upward movable plate 313 controls the displacement of diaphragm 2B in this direction, and the movable plate 313 on different directions individually controls, When needing diaphragm 2B integrally to move along optical axis, keep the displacement of the movable plate 313 of all directions identical；When needing diaphragm 2B To when a direction run-off the straight, make movable plate 313 in this direction displacement be more than or less than other directions on can The displacement of movable plate electrode 313, to obtain the different image of two sides clarity.

Figure 23 shows the embodiment that multiple movable plates 313 are successively circumferentially arranged, wherein each movable plate 313 can Individually control, thus diaphragm 2B can run-off the straight in a plurality of directions, in addition, by control movable plate 313 displacement, It can control the tilt angle of diaphragm 2B.

Certainly in other examples, each movable plate 313 can not also be controlled individually, to simplify each movable plate 313 displacement.In this case, the displacement of each movable plate 313 remains identical, and only along optical axis position occurs for diaphragm 2B It moves, not run-off the straight.

[embodiment 13]

As shown in figure 25, a kind of optical lens of iris ring is provided, including camera lens 1, diaphragm 2B, driving unit 3I and Lens driving unit 5.

The structural reference embodiment 12 of the camera lens 1 of embodiment 13, diaphragm 2B and driving unit 3I.

Embodiment 13 further includes the lens driving unit 5 for driving camera lens 1 mobile, and lens driving unit 5 includes driving Coil 51, drive magnet 52 and drive shell 53, the setting of drive shell 53 is in 1 outside of camera lens, driving coil 51 and driving magnetic Iron 52 is separately positioned on the side wall of lens barrel 11 and the inner wall of drive shell 53, uses between driving coil 51 and drive magnet 52 Magneticaction is generated, also camera lens 1 is driven to move, realizes focusing.

[embodiment 14]

As shown in Figure 26,27, a kind of optical lens of iris ring, including camera lens 1, diaphragm 2C, driving unit 3J are provided And diaphragm setting structure 4C.

Camera lens 1 includes lens barrel 11 and the eyeglass 12 being arranged in lens barrel 11.Diaphragm 2C includes set on 11 top of lens barrel Light-blocking face 21 and the side 22C extended downwardly from the side in light-blocking face 21.Light hole 20 is formed in light-blocking face 21, external light Line directive eyeglass 12 after light hole 20.The side of diaphragm 2C is around the side of lens barrel 11.

Diaphragm setting structure 4C includes the shell 42 being arranged on the outside of diaphragm 2C and is arranged in the 7th of 42 inner wall of shell Field generator for magnetic 43, the 7th field generator for magnetic 43 are opposite with diaphragm 2C.Diaphragm 2C and the 7th field generator for magnetic 43 are opposite Part be ferromagnetic material, the 7th field generator for magnetic 43 is magnet, thus diaphragm 2C and the 7th field generator for magnetic 43 it Between magnetic attracting force diaphragm 2C is maintained at fixed position.

Driving unit 3J includes the 8th field generator for magnetic 38 that the side 22C of diaphragm 2C is arranged in, and the 8th magnetic field occurs Device 38 and the 7th field generator for magnetic 43 are opposite.8th field generator for magnetic 38 is coil, selectively generates magnetic field, when When 8th field generator for magnetic 38 is not powered on, magnetic attracting force between diaphragm 2C and the 7th field generator for magnetic 43 is by diaphragm 2C Stabilize to the position for being maintained at fixed；Magnetic field, the 8th field generator for magnetic 38 are generated when the 8th field generator for magnetic 38 is powered Magnetic action power between the 7th field generator for magnetic 43 overcomes the effect between diaphragm 2C and the 7th field generator for magnetic 43 Power moves diaphragm 2C along optical axis under the effect of external force.

Ball 44 is equipped between diaphragm 2C and shell 42, the side 22C of diaphragm 2C and the inner wall of shell 42 are respectively formed peace The guide rail 45 of ball 44 is filled, guide rail 45 is parallel with the optical axis of camera lens 1, can limit diaphragm 2C's by ball 44 and guide rail 45 The direction of motion guarantees that diaphragm 2C is moved along optical axis direction.

In other examples, it is also possible to the 7th field generator for magnetic 43 to be arranged on diaphragm 2C, shell 42 and the The opposite part of seven field generator for magnetic 43 is ferromagnetic material, and the 8th field generator for magnetic 38 is arranged on shell 42.

[embodiment 15]

As shown in Figure 28,29, a kind of optical lens of iris ring, including camera lens 1, diaphragm 2D, driving unit 3K are provided And diaphragm setting structure 4A.Diaphragm 2D is set to 1 top of camera lens, and diaphragm 2D has the light hole 20 opposite with camera lens 1, light hole 20 play the role of limiting light, and extraneous light enters camera lens 1 after light hole 20, and driving unit 3K is for driving diaphragm 2D Optical axis direction along camera lens 1 moves.

Camera lens 1 includes lens barrel 11 and the eyeglass 12 being arranged in lens barrel 11.Aperture location structure 4A includes being set to diaphragm Elastic element 41 between 1 upper surface 2D and camera lens, elastic element 41 are spring leaf or the gluey material with elastic deformation ability Material.Elastic element 41 is suitable for holding it away from diaphragm 2D the position of camera lens 1.

Driving unit 3K is embodied as memory alloy actuator comprising multiple SMA drive line 310, and each SMA drives line 310 One end connect with diaphragm 2D, the other end is connect with the pedestal of the optical lens, SMA driving line 310 be powered when shrink, thus Drive diaphragm 2D mobile to the direction of camera lens 1, SMA drives 310 recovery after power cut original length of line, and diaphragm 2D is in elastic element 41 Under the action of reset.

Two SMA driving lines 310 are respectively equipped in the opposite side diaphragm 2D at least two, two SMA of every one side drive Moving-wire symmetrically tilts the pedestal for extending to the optical lens from the both ends of diaphragm 2D, and two SMA of same side drive line 310 shrink simultaneously, it is ensured that uniform force of the diaphragm 2D in the side.

In the embodiment as shown in Figure 28,29,30, driving unit 3K includes that 4 SMA drive 310,4 driving lines of line It is divided into two groups and is separately positioned on the two opposite sides diaphragm 2D.

In embodiment as shown in figure 31, driving unit 3K includes that 8 SMA driving 310,8 driving lines of line are divided into 4 groups It is separately positioned on four sides of diaphragm 2D.

The SMA driving line 310 of each side can be controlled separately, so that the displacement of each side can be different, so that Diaphragm 2D can be big with respect to 1 run-off the straight of camera lens namely the variation of the distance between 20 side of light hole and camera lens 1, the other side and mirror First the distance between 1 variation is small.

In embodiment 1- embodiment 15, the upper end of lens barrel 11 has light blocking ring 112 (see Fig. 1), and light blocking ring 112 can prevent Veiling glare enters eyeglass 12.In the present invention, due to the presence of diaphragm 2, eyeglass 12 can be entered to avoid veiling glare, therefore can be with Cancel the light blocking ring of 11 upper end of lens barrel, as shown in figure 32.

The utility model also provides a kind of camera module of the optical lens of iris ring including the various embodiments described above.

The utility model also provides a kind of Portable movable of the optical lens of iris ring including the various embodiments described above Electronic equipment, such as mobile phone, tablet computer.

The utility model also provides a kind of method for adjusting optical lens aperture size, comprising the following steps:

In providing a diaphragm 2 on the entering light direction of a camera lens 1, diaphragm 2 has light hole 20, and light is after light hole 20 Into camera lens 1；

The distance between at least part of light hole 20 and camera lens 1 is set to change on the direction along optical axis.

In one embodiment, driving diaphragm 2 is moved integrally along the optical axis direction of camera lens 1, so that light hole 20 is each Part is equal with the variation of the distance between camera lens 1.

In another embodiment, optical axis direction run-off the straight of the driving diaphragm 2 relative to camera lens 1, so that light hole 20 Side and the variation of the distance between camera lens 1 it is big, the distance between the other side and camera lens 1 change small.

The utility model also provides a kind of imaging method, and the imaging method is suitable for obtaining the figure with radian Deep Canvas Picture, namely in the picture, outside by picture center, the depth of field gradually changes, the imaging method the following steps are included:

Obtain image when, move diaphragm 2 along the optical axis direction of camera lens 1, with change between light hole 20 and camera lens 1 away from From.

Further, when obtaining image, make diaphragm 2 to by the movement of the direction of portrait attachment 1.

The utility model also provides a kind of imaging method, and the imaging method is suitable for obtaining the different figure of two sides clarity Picture, the imaging method the following steps are included:

When obtaining image, drive diaphragm 2 relative to 1 run-off the straight of camera lens, so that between the side of light hole 20 and camera lens 1 Distance change it is big, the distance between the other side and camera lens 1 variation it is small.

Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to In the utility model range claimed.

Claims

1. a kind of optical lens of iris ring, which is characterized in that including

Camera lens；

Diaphragm is set to above the camera lens, has the light hole opposite with the camera lens, and light is laggard by the light hole Enter the camera lens；And

Driving unit, for driving the diaphragm to be subjected to displacement relative to the camera lens, so that at least the one of the light hole The distance between part and the camera lens change on the direction along optical axis.

2. the optical lens of iris ring according to claim 1, which is characterized in that the driving unit is set to the mirror The upper surface of head, the driving unit are suitable for deforming when temperature or electric current change, and the diaphragm is installed on the driving Unit, so that the diaphragm is moved with the deformation of the driving unit.

3. the optical lens of iris ring according to claim 1, which is characterized in that further include diaphragm setting structure, institute State diaphragm setting structure the diaphragm is slidably retained above the camera lens, when the driving unit do not act on it is described When diaphragm, the diaphragm is maintained at initial position by the diaphragm setting structure, when the driving unit acts on the diaphragm When, the diaphragm setting structure allows the diaphragm to be subjected to displacement under the action of the driving unit.

4. the optical lens of iris ring according to claim 3, which is characterized in that the diaphragm setting structure includes bullet Property element, the camera lens includes lens barrel and the eyeglass that is arranged in the lens barrel, the elastic element be set to the diaphragm with Between the lens barrel.

5. the optical lens of iris ring according to claim 4, which is characterized in that the diaphragm includes being set to the mirror The light-blocking face of cylinder top and the side extended downwardly from the edge in the light-blocking face, the side is around setting in the lens barrel Outside so that the displacement of the diaphragm is limited by the lens barrel, the light hole is formed on the light-blocking face.

6. the optical lens of iris ring according to claim 3, which is characterized in that the diaphragm setting structure includes solid Surely the 7th field generator for magnetic being arranged, the 7th field generator for magnetic is opposite with the diaphragm, the diaphragm and described the The opposite part of seven field generator for magnetic is ferromagnetic material, and the 7th field generator for magnetic is magnet, utilizes the diaphragm The diaphragm is maintained at fixed position, the driving unit packet by the magnetic attracting force between the 7th field generator for magnetic The 8th field generator for magnetic is included, the 8th field generator for magnetic and the 7th field generator for magnetic are relatively set to the light Door screen, the 8th field generator for magnetic selectively generate magnetic field, to be generated by changing the 8th field generator for magnetic Magnetic field, drive the diaphragm to move along optical axis；Or the diaphragm setting structure includes being arranged on the diaphragm 7th magnet generating device and the ferromagnetic material being fixed on the outside of the diaphragm are filled using the 7th magnetic field It sets magnetic attracting force between the ferromagnetic material and the diaphragm is maintained at fixed position, the driving unit includes the Eight field generator for magnetic, the 8th field generator for magnetic are oppositely disposed with the 7th field generator for magnetic, and the described 8th Field generator for magnetic selectively generates magnetic field, thus the magnetic field generated by changing the 8th field generator for magnetic, driving The diaphragm is moved along optical axis.

7. the optical lens of iris ring according to claim 6, which is characterized in that the diaphragm setting structure includes setting Set the shell on the outside of the diaphragm, the 7th field generator for magnetic setting in the outer casing inner wall, the diaphragm with it is described Ball is equipped between shell, the inner wall of the outer wall of the diaphragm and the shell is respectively formed the guide rail for installing the ball, from And the moving direction of the diaphragm is limited by the guide rail.

8. the optical lens of iris ring according to claim 1, which is characterized in that the diaphragm includes being set to the mirror The light-blocking face of head top and the side that extends downwardly from the edge in the light-blocking face, the side is around outside the camera lens Side, the frictional force between the side of the diaphragm and the camera lens are greater than the gravity of the diaphragm, and the driving unit overcomes institute The frictional force between diaphragm and the camera lens is stated to drive the diaphragm.

9. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens includes lens barrel and sets The eyeglass in the lens barrel is set, the diaphragm includes the light-blocking face above the lens barrel and the side from the light-blocking face The side that edge extends downwardly, the light hole are formed on the light-blocking face, and the driving unit is sent out including at least three magnetic fields Generating apparatus, wherein a field generator for magnetic is set to the side of the diaphragm, a field generator for magnetic is set to the mirror The side wall of cylinder, remaining at least one described field generator for magnetic, which surrounds, to be arranged on the outside of the diaphragm and the camera lens, the drive At least there are two magnetic field is selectively generated in each field generator for magnetic of moving cell, thus each described by changing Magneticaction between field generator for magnetic drives the camera lens or the diaphragm to move along optical axis.

10. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens include lens barrel and Eyeglass in the lens barrel is set, and the diaphragm includes light-blocking face above the lens barrel and from the light-blocking face The side that edge extends downwardly, the light hole are formed on the light-blocking face, and the driving unit includes that two magnetic fields occur Device, wherein a field generator for magnetic is set to the side of the diaphragm, another field generator for magnetic is set to the mirror Drum outer wall or at least one selectively generates magnetic in the outside that the diaphragm is arranged in, two field generator for magnetic , to drive the diaphragm to move along optical axis by changing the magneticaction between two field generator for magnetic.

11. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens include lens barrel and Eyeglass in the lens barrel is set, the diaphragm is cyclic structure, the driving unit include mounting portion, thermal deformation piece and Suitable for making the raised electroheat member of thermal deformation piece temperature, the upper surface of the lens barrel, the heat is arranged in the mounting portion The rear end of deformation sheet is set to the mounting portion, and front end vacantly extends forward, the front end of the diaphragm and the thermal deformation piece Connection, so that the light hole of the diaphragm is opposite with the eyeglass in the lens barrel, the electroheat member makes institute when being powered It states thermal deformation piece to be heated and bend, so that the diaphragm be driven to be subjected to displacement along optical axis.

12. the optical lens of iris ring according to claim 11, which is characterized in that the mounting portion is annular, institute Stating driving unit includes multiple thermal deformation pieces, and each thermal deformation piece is arranged on the different directions of the mounting portion, The upward thermal deformation piece of each party controls the displacement of the diaphragm in this direction, the thermal deformation piece on different directions Individually control, so that the diaphragm can be controlled separately in the displacement of different directions.

13. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens include lens barrel and Eyeglass in the lens barrel is set, the diaphragm is cyclic structure, and the driving unit includes mounting portion and piezoelectric structure, The upper surface of the lens barrel is arranged in the mounting portion, and the rear end of the piezoelectric structure is installed on the mounting portion, and front end is outstanding Sky extends forward, and the diaphragm is connect with the front end of the piezoelectric structure, so that the light hole of the diaphragm and the mirror Piece is opposite, and the piezoelectric structure is electrically connected to a power source, and when energization, the piezoelectric structure bent, and drives the diaphragm along optical axis It is subjected to displacement.

14. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens include lens barrel and Eyeglass in the lens barrel is set, and the diaphragm is cyclic structure, and the driving unit includes cricoid encapsulation part, Duo Gegu The upper surface of the lens barrel is arranged in fixed plate and multiple movable plates, the encapsulation part, and each fixed polar plate is mounted on The inner annular edge of the encapsulation part, each fixed polar plate are electrically connected to a power source, and each movable plate is arranged in the fixation Between pole plate, and each movable plate is arranged in the different directions of the encapsulation part, the edge of the diaphragm with it is each described Movable plate connection generates electric field between each fixed polar plate when the fixed polar plate is powered, and changing electric field strength can drive The movable plate is moved to move, so that the diaphragm is driven to move along optical axis, the displacement list of each movable pole piece Solely control, so that the diaphragm can be controlled separately in the displacement of different directions.

15. the optical lens of any iris ring of 1-14 according to claim 1, which is characterized in that further include for driving Move the mobile lens driving unit of the camera lens.

16. the optical lens of iris ring according to claim 1, which is characterized in that the camera lens include lens barrel and Eyeglass in the lens barrel is set, elastic element is equipped between the diaphragm and the lens barrel, the driving unit includes more A SMA drives line, and one end of each SMA driving line is connect with the diaphragm, and the pedestal of the other end and the optical lens connects It connects, the SMA driving line is shunk when being powered, so that the diaphragm be driven to be subjected to displacement.

17. the optical lens of iris ring according to claim 16, which is characterized in that at least two phase of diaphragm Pair side be respectively equipped with two SMA driving lines, the SMA driving line of the two of every one side is symmetrically from the diaphragm Both ends tilt the pedestal for extending to the optical lens, and the SMA driving line of each side individually controls, thus the diaphragm The displacement of each side can be adjusted as needed so that the diaphragm can be moved along optical axis or the relatively described camera lens Run-off the straight.

18. a kind of camera module, which is characterized in that the optical frames including the iris ring as described in claim 1-17 is any Head.

19. a kind of Portable mobile electronic device, which is characterized in that including the iris ring as described in claim 1-17 is any Optical lens.