CN212460156U - Periscopic lens module - Google Patents

Abstract

The invention discloses a periscopic lens module, which comprises a voice coil motor structure, wherein the voice coil motor structure comprises a first base, a first reflection module, a second reflection module and a first driving unit, wherein the second reflection module is used for reflecting light rays from the first reflection module, the first driving unit is used for driving the first reflection module and the second reflection module to move in the same direction or in opposite directions on the first base, and the first reflection module and the second reflection module are respectively connected with the first base in a sliding mode through at least one sliding unit. The VCM structure of the periscopic lens module realizes sliding by utilizing rolling of the balls, avoids impact generated by overcoming static friction force, enables actuation to be smoother and obtains good action effect.

Description

Periscopic lens module

Technical Field

The invention belongs to the technical field of mobile phone lenses, and particularly relates to a periscopic lens module.

Background

A Voice Coil Motor (VCM) is a device that converts electrical energy into mechanical energy and implements linear and limited-swing-angle motion. The device generates regular movement by utilizing the interaction between the magnetic field from the permanent magnetic steel and the magnetic poles in the magnetic field generated by the conductor of the electrified coil.

In the prior art, a sliding block sliding mode is adopted for movement in a VCM structure of the periscopic lens, and in the sliding mode, static friction force is overcome while impact is generated between the sliding blocks in the sliding process along a sliding groove, a sliding hole, a sliding shaft and the like, so that the precision of the structure is influenced.

Disclosure of Invention

The invention provides a periscopic lens module to solve the technical problem that in the voice coil motor structure in the prior art, sliding blocks are adopted to slide, so that impact is generated between the voice coil motor structure and the voice coil motor structure due to the fact that static friction force is overcome.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a periscopic lens module, includes the voice coil motor structure, the voice coil motor structure includes first base, first reflection module, is used for the reflection to come from the second reflection module of the light of first reflection module and be used for the drive first reflection module with the second reflection module is in the first drive unit of concerted movement or reverse motion on the first base, first reflection module with the second reflection module respectively through an at least reset assembly with first pedestal connection.

Furthermore, the reset component is at least one sliding unit, the first reflection module and the second reflection module are respectively connected with the first base in a sliding manner through the sliding unit, the first reflection module comprises a first reflection piece and a first carrier, and the first reflection piece is installed on the first carrier; the second reflection module comprises a second reflection piece and a second carrier, the second reflection piece is arranged on the second carrier, and the sliding unit is a ball; the reflecting surface of the first reflecting piece and the reflecting surface of the second reflecting piece respectively comprise metal layers;

one of the first carrier and the first base is provided with at least one first accommodating groove for the balls to roll in a positioning manner, and the corresponding position of the other one of the first carrier and the first base is provided with at least one first sliding groove extending along the movement direction of the first carrier; one of the second carrier and the first base is provided with at least one second accommodating groove for the balls to roll in a positioning manner, and the other of the second carrier and the first base is provided with at least one second sliding groove extending along the movement direction of the second carrier at a corresponding position.

Further, the first driving unit includes a first driving assembly for driving the first reflection module and a second driving assembly for driving the second reflection module, the first driving assembly including a first driving magnet disposed on one of the first base and the first carrier, and a first printed circuit unit and a first suction yoke disposed on the other; the second driving assembly includes a second driving magnet disposed on one of the first base and the second carrier, and a second printed circuit unit and a second attracting yoke disposed on the other; the first printed circuit unit comprises a first coil and a first printed circuit board, the first coil is printed on one surface of the first printed circuit board opposite to the first driving magnet, the second printed circuit unit comprises a second coil and a second printed circuit board, and the second coil is printed on one surface of the second printed circuit board opposite to the second driving magnet;

the reflecting surface of the first reflecting piece is perpendicular to the reflecting surface of the second reflecting piece, and the first reflecting piece and the second reflecting piece can be prisms, reflecting prisms or reflecting mirrors; two first accommodating grooves are formed in the positions, corresponding to the first sliding grooves in the lower side of the first carrier, of the lower frame wall of the first base, and two second accommodating grooves are formed in the positions, corresponding to the second sliding grooves in the lower side of the second carrier, of the lower frame wall of the first base; two first accommodating grooves are formed in the positions, corresponding to the first sliding grooves, of the upper frame wall of the first base and the upper side of the first carrier, and two second accommodating grooves are formed in the positions, corresponding to the second sliding grooves, of the upper frame wall of the first base and the upper side of the second carrier.

Further, the periscopic lens module further includes an external reflection structural assembly for receiving and reflecting the object-side light, and the external reflection structural assembly includes:

a third reflector for receiving and reflecting the object side light, the reflecting surface of the third reflector comprising a metal layer;

a third carrier for carrying and mounting the third reflector;

the second base is used for mounting the third carrier and comprises a bottom plate and two supporting plates which are vertically arranged on the bottom plate, the third carrier rotates relative to the second base through a shaft body, the third carrier is fixedly connected to the shaft body, and two ends of the shaft body are respectively connected with the second base; the third carrier is positioned between the two support plates, shaft holes are respectively formed in the two support plates, and two ends of the shaft body are respectively arranged in the shaft holes; fixing holes for inserting and fixing the shaft bodies are formed in two sides of the third carrier respectively, and the fixing holes correspond to the shaft holes;

and the second driving unit is used for driving the third carrier to rotate.

Furthermore, two ends of the shaft body are provided with abutting parts for abutting against the shaft body, the abutting parts are fixed on the supporting plate, and a resistance reducing structure is arranged between the shaft body and the corresponding abutting parts; the resistance reducing structure is a ball structure arranged between the shaft body and the abutting part; or the resistance reducing structure is a sphere structure formed by protruding one side of the abutting part towards the shaft body; or the resistance reducing structure is a spherical structure formed on the end faces of the two ends of the shaft body.

Further, at least one pair of mutually-repulsive magnet assemblies is arranged on the side, opposite to the third carrier, of each supporting plate, each pair of the magnet assemblies comprises a first magnet and a second magnet, and the same magnetic poles of the first magnet and the second magnet are oppositely arranged; a first groove is formed in one side, facing the third carrier, of each supporting plate, and the first magnet is arranged in the first groove; a second groove is formed in the position, corresponding to the first groove, of the two sides, facing the supporting plate, of the third carrier, and the second magnet is arranged in the second groove; or an annular first counter bore is formed around the shaft hole on one side of each support plate facing the third carrier, the first magnet is arranged in the first counter bore, and a through hole for penetrating the shaft body is formed in the first magnet; the third carrier faces to two sides of the supporting plate, an annular second counter bore is formed around the fixing hole, the second magnet is arranged in the second counter bore, and a through hole used for penetrating the shaft body is formed in the second magnet.

Further, the second driving unit includes a third driving magnet and a third coil, one of the third driving magnet and the third coil is disposed at a side of the bottom plate of the second base facing the third carrier, and the other of the third driving magnet and the third coil is disposed at a position where the third carrier corresponds to the bottom plate of the second base;

the periscopic lens module further comprises an image sensor and a lens module, the lens module is used for receiving light rays reflected by the outer reflection structure assembly, the lens module comprises at least three lenses and a diaphragm, the voice coil motor structure is arranged between the lens module and the image sensor, the light rays from the object side enter the outer reflection structure assembly in sequence along a first direction, then are reflected to the lens module and the first reflection module along a second direction, then reach the second reflection module along a third direction, and finally reach the image sensor along the second direction.

The first shielding component is covered on the outer reflection structure component, a first hole is formed in the surface, facing the outer reflection structure component, of the first shielding component, and incident light is incident on the outer reflection structure component through the first hole; the lens module is characterized by further comprising a second shielding assembly, the second shielding assembly is arranged between the outer reflection structure assembly and the lens module, a second hole is formed in the second shielding assembly, and light rays penetrate through the second hole to be incident to the lens module.

Further, the shape of at least one of the lens, the inner and outer peripheral portions of the aperture, and the first and second holes is non-circular or polygonal symmetric to the optical axis or polygonal asymmetric to the optical axis or wave-shaped or flower-shaped or blade-shaped or cloud-shaped or star-shaped or saw-tooth-shaped or heart-shaped or a shape including both straight lines and arc lines or a shape formed by connecting irregular lines.

Furthermore, the reset component is a plurality of elastic pieces, and the elastic pieces are positioned between the first reflection module and the second reflection module, between the first reflection module and the first base, and between the second reflection module and the first base; the first reflection module further comprises a first reflection piece, a first carrier and a first reflection base, and the second reflection module further comprises a second reflection piece, a second carrier and a second reflection base;

the first carrier carries the first reflector and the second carrier carries the second reflector;

the second reflecting base and the second carrier are connected with each other through the elastic piece, and the first reflecting base and the first carrier are connected with each other through the elastic piece.

The invention has the beneficial effects that: the voice coil motor structure of the periscopic lens module realizes sliding by utilizing rolling of the balls, avoids impact generated by overcoming static friction force, ensures that the action is smoother and obtains good action effect.

Drawings

FIG. 1 is a schematic structural diagram of a periscopic lens module according to the present invention;

fig. 2 is an exploded view of a voice coil motor structure in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the voice coil motor structure of embodiment 1 of the present invention after the first reflection module and the second reflection module are assembled with the first base;

fig. 4 is a schematic structural diagram of a second reflective module in a voice coil motor structure according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a first base in a voice coil motor structure according to embodiment 1 of the present invention;

fig. 6 is an exploded view of a first base in a voice coil motor structure according to embodiment 1 of the present invention;

fig. 7 is an exploded view of a first drive unit in a voice coil motor structure in embodiment 1 of the invention;

fig. 8 is a schematic structural view of an external reflection structure assembly in embodiment 2 of the present invention;

fig. 9 is an exploded view of a first embodiment of an external reflection structural assembly in embodiment 2 of the present invention;

fig. 10 is an exploded view of a second embodiment of an external reflection structural assembly in embodiment 2 of the present invention;

fig. 11 is an exploded view of a third embodiment of an external reflection structural assembly in embodiment 2 of the present invention;

fig. 12 is an exploded view of a first embodiment of an external reflection structural assembly in embodiment 3 of the present invention;

fig. 13 is an exploded view of a second embodiment of an external reflection structural assembly in embodiment 3 of the present invention;

fig. 14 is a schematic perspective view of a second reflective module and an elastic member according to embodiment 4 of the present invention;

fig. 15 is a schematic perspective view of another angle of the second reflective module and the elastic member in embodiment 4 of the present invention;

fig. 16 is an exploded view of a voice coil motor structure in embodiment 4 of the present invention;

fig. 17 is a schematic perspective view of a periscopic lens module according to an embodiment 5 of the present invention;

fig. 18 is an exploded view of a periscopic lens module of the present invention in embodiment 5;

fig. 19 is a schematic perspective view of a second shutter assembly according to the present invention in embodiment 5.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the present invention provides a periscopic lens module, which includes a voice coil motor structure (VCM structure) 1, an external reflection structure assembly 2, a lens module 3, a connecting unit 4 and an image sensor (not shown). The external reflection structural assembly 2 is configured to receive and reflect an object-side light, and the lens module 3 is configured to receive the light reflected by the external reflection structural assembly 2. The voice coil motor structure (VCM structure) 1 provides auto-focusing and image anti-shake functions.

The connection unit 4 is used to enable the lens module 3 to be connected with the vcm structure 1 more stably, so that the lens module 3 can be quickly positioned on the vcm structure 1, and those skilled in the art will understand that the connection unit 4 is not a necessary component, and the connection unit 4 can be omitted or replaced by other means, and the invention is not limited thereto.

The image sensor is disposed at the light exit of the second reflective module 12, i.e., on the sidewall of the voice coil motor structure 1 parallel to the third direction, and receives the light reflected by the second reflective module 12. In other embodiments, the image sensor may also be disposed at the light exit of the first reflective module 11, i.e. on the sidewall of the voice coil motor structure 1 parallel to the second direction.

Voice coil motor structure 1 sets up between lens module 3 and image sensor, refer to fig. 2, and voice coil motor structure 1 includes first reflection module 11 and second reflection module 12, and first reflection module 11 receives the light through lens module 3 to with light reflection to second reflection module 12, second reflection module 12 receives light, and with light reflection to image sensor.

Specifically, the object-side light enters the external reflection structural assembly 2 along the first direction, then the external reflection structural assembly 2 reflects the light to the lens module 3 along the second direction, the light passes through the lens module 3 and then irradiates the first reflection module 11, the first reflection module 11 reflects the light along the third direction and then reaches the second reflection module 12, and finally the second reflection module 12 reflects the light along the second direction and then reaches the image sensor to form an image. In other words, the light from the object side sequentially enters the external reflection structural element 2 along the first direction, then is reflected to the lens module 3 and the first reflection module 11 along the second direction, then reaches the second reflection module 12 along the third direction, and finally reaches the image sensor along the second direction.

It will be appreciated that the lens module 3 has an optical axis along the second direction, the lens module 3 comprising at least three lenses, at least one of which has a positive refractive power, i.e., the focal length is positive, and the lens closest to the object side may have a positive refractive power and the object side surface may be convex, and at least one lens has a negative refractive power, that is, the focal length value is negative, and the outer peripheral shape of at least one of the lenses is non-circular, the lens is viewed along the optical axis, and the shape of the outer periphery of the lens can be non-circular, such as a polygon, a polygon symmetrical to the optical axis, a polygon asymmetrical to the optical axis, a racetrack shape, a goblet shape, an oak barrel shape or the upper half of a red wine bottle, a wave shape, a flower shape, a blade shape, a cloud shape, a star shape, a sawtooth shape, an love heart shape, a shape including straight lines and arcs or a shape formed by connecting irregular lines. The shape of the aperture may be non-circular, that is, the aperture is viewed along the optical axis, and the shape of the outer circumference of the aperture may be non-circular, such as a polygon, a polygon symmetrical to the optical axis, a polygon asymmetrical to the optical axis, a racetrack shape, a goblet shape, an oak barrel shape or an upper half of a red wine bottle, a wave shape, a flower shape, a blade shape, a cloud shape, a star shape, a sawtooth shape, an love heart shape, a shape including straight lines and arcs, or an irregular line. Preferably, the periscopic lens module has at least one lens and the inner and outer peripheral portions of the aperture are non-circular, such design is beneficial to the overall effective reduction of size, thickness and volume of the lens module, and the partial shapes such as wave shape, cloud shape, star shape and sawtooth shape can also achieve the effect of reducing stray light and ghost image, so that the periscopic lens module is effectively thinned. However, the present disclosure is not limited thereto, and the shape of the lens and the aperture may also be circular.

Example 1

Referring to fig. 2 and 3, in a preferred embodiment of the present invention, the voice coil motor structure 1 includes an outer cover 13, a back cover 14, a first base 15, a first reflection module 11, a second reflection module 12 for reflecting light from the first reflection module 11, and a first driving unit 16 for driving the first reflection module 11 and the second reflection module 12 to move on the first base 15 in the same direction or in opposite directions, wherein the first reflection module 11 and the second reflection module 12 are respectively connected to the first base 15 through at least one reset component. In this embodiment, the reset component is a sliding unit 17, and the first reflective module 11 and the second reflective module 12 are slidably connected to the first base 15 through at least one sliding unit 17. It is noted that the sliding unit 17 may be a ball, a roller, a shaft or other components that may produce a sliding mechanism.

The first base 15 is a substantially hollow frame, and an upper wall of the hollow frame has a gap, so that the first reflective module 11 and the second reflective module 12 can be conveniently assembled.

The housing 13 and the rear cover 14 enclose a receiving space for receiving the above-mentioned other components therein, and at the same time, maintain the shape of the voice coil motor structure 1. And a rear cover 14 is provided to cover an end near the first base 15.

Referring to fig. 3, the first and second reflection modules 11 and 12 are slidably installed in the first base 15. The first reflective module 11 includes a first reflective member 111 and a first carrier 112, the first reflective member 111 is mounted on the first carrier 112; the second reflective module 12 includes a second reflective member 121 and a second carrier 122, and the second reflective member 121 is mounted on the second carrier 122. The first reflective member 111 is disposed opposite to the second reflective member 121, and the "opposing disposition" herein does not mean that the two are parallel to each other and face each other, but means that light passing through one of the two can reach the other. Preferably, the reflective surface of the first reflective member 111 and the reflective surface of the second reflective member 121 are perpendicular to each other. In a preferred embodiment, the reflective surface of the first reflective element 111 and the reflective surface of the second reflective element 121 preferably include a metal layer, such as a metal layer formed of aluminum (Al) or silver (Ag), and the manufacturing method of the metal layer is not limited, including but not limited to plating, printing, cladding, and the like.

In the present invention, the first and second reflection members 111 and 121 may be prisms, reflection prisms, or mirrors. The first reflecting member 111 is fixedly mounted on the first carrier 112, and the relative position of the first reflecting member 111 is maintained by the first carrier 112. The second reflecting member 121 is fixedly mounted on the second carrier 122, and the relative position of the second reflecting member 121 is maintained by the second carrier 122.

Referring to fig. 2, 4, 5, and 6, one of the first carrier 112 and the first base 15 is formed with at least one first receiving groove 101 for the sliding unit 17 to roll, and the corresponding position of the other of the first carrier 112 and the first base 15 is formed with at least one first sliding groove 201 extending along the moving direction of the first carrier 112; one of the second carrier 122 and the first base 15 is formed with at least one second receiving groove 102 for the sliding unit 17 to roll, and the other of the second carrier 122 and the first base 15 is formed with at least one second sliding groove 202 extending along the moving direction of the second carrier 122 at a corresponding position.

Referring to fig. 2 and 4, in the preferred embodiment, the first sliding grooves 201 are respectively formed on the upper side and the lower side of the first carrier 112, and the cross section of the first sliding groove 201 is substantially V-shaped, so as to reduce the contact area with the sliding unit 17. The second sliding grooves 202 are formed on the upper side and the lower side of the second carrier 122, and the cross section of the second sliding grooves 202 is substantially V-shaped, so that the contact area with the sliding unit 17 can be reduced. In other embodiments, the cross-section of the first sliding chute 201 and the second sliding chute 202 can also be arc-shaped, semicircular or other shapes, etc.

Referring to fig. 3 and 5, in the present preferred embodiment, two first accommodating grooves 101 are disposed at positions corresponding to the first sliding grooves 201 on the lower side of the first carrier 112 and the lower frame wall of the first base 15, and two second accommodating grooves 102 are disposed at positions corresponding to the second sliding grooves 202 on the lower side of the second carrier 122 and the lower frame wall of the first base 15; two first accommodating grooves 101 are formed in the positions of the upper frame wall of the first base 15 corresponding to the first sliding grooves 201 on the upper side of the first carrier 112, and two second accommodating grooves 102 are formed in the positions of the upper frame wall of the first base 15 corresponding to the second sliding grooves 202 on the upper side of the second carrier 122. It should be noted that the number of the first receiving grooves 101 and the second receiving grooves 102 is determined according to the number of the sliding units 17, and the number of the sliding units 17 is determined according to needs and is not limited.

Referring to fig. 6, in the present preferred embodiment, a first through hole 151 is formed at a position of the first base 15 corresponding to the first sliding slot 201 of the first carrier 112, a T-shaped first concave portion 153 is embedded in the first through hole 151, and two first accommodating grooves 101 are formed in the first through hole 151; similarly, a second through hole 152 is formed in the first base 15 at a position corresponding to the second sliding slot 202 of the second carrier 122, a T-shaped second concave portion 154 is embedded in the second through hole 152, and two second receiving slots 102 are formed in the second through hole 152, so as to facilitate the assembly of the sliding unit 17. In other embodiments, blind holes, through holes or holes may be directly formed on the first base 15 to serve as the first receiving groove 101 and the second receiving groove 102.

The sliding unit 17 is positioned in the first receiving groove 101 and the second receiving groove 102 for rotation while rolling along the first sliding groove 201 and the second sliding groove 202, and the sliding unit 17 avoids impact generated by overcoming static friction force, so that the operation is smoother and a good operation effect is obtained.

Referring to fig. 2, 3 and 7, the first driving unit 16 includes a first driving assembly 161 for driving the first reflection module 11 and a second driving assembly 162 for driving the second reflection module 12.

The first driving assembly 161 includes a first driving magnet 1611 disposed on one of the back cover 14 and the first carrier 112, and a first printed circuit unit 1612 and a first suction yoke 1613 disposed on the other; the second driving assembly 162 includes a second driving magnet 1621 disposed on one of the back cover 14 and the second carrier 122, and a second printed circuit unit 1622 and a second attracting yoke 1623 disposed on the other.

In the preferred embodiment, the first driver magnet 1611 is disposed on the opposite side of the first carrier 112 from the back cover 14, and the second driver magnet 1621 is disposed on the opposite side of the second carrier 122 from the back cover 14. The first printed circuit unit 1612, the first suction yoke 1613, the second printed circuit unit 1622, and the second suction yoke 1623 are disposed on the back cover 14. The first driving magnet 1611 and the first attracting yoke 1613 attract each other, and the second driving magnet 1621 and the second attracting yoke 1623 attract each other, so that the first carrier 112 and the second carrier 122 can be tightly abutted against the first base 15, and the first reflecting member 111 and the second reflecting member 121 are ensured to be perpendicular to the optical path.

In the embodiment, the first printed circuit unit 1612 and the second printed circuit unit 1622 are connected to each other and integrally formed as a single component, but not limited thereto, and may be separate components.

The first printed circuit unit 1612 includes a first coil printed on a face of the first printed circuit board opposite to the first driving magnet 1611 and a first printed circuit board, and the second printed circuit unit 1622 includes a second coil printed on a face of the second printed circuit board opposite to the second driving magnet 1621 and a second printed circuit board. Specifically, after the first coil of the first printed circuit unit 1612 and the second coil of the second printed circuit unit 1622 are energized, a magnetic field is generated, the first driving magnet 1611 and the second driving magnet 1621 are thrust, and under the action of electromagnetic force, the first carrier 112 and the second carrier 122 can be driven to translate in the same direction or in the opposite direction along the first sliding groove 201 and the second sliding groove 202, respectively, so that the periscopic lens module with the voice coil motor structure 1 mounted thereon realizes the functions of automatic focusing and optical hand shock prevention.

The first printed circuit unit 1612 further includes a first driving chip and a first chip condenser. Wherein the first coil is printed on one side of the first printed circuit board opposite to the first driving magnet 1611, and the first driving chip and the first chip condenser are mounted on the other side of the first printed circuit board. The second printed circuit unit 1622 further includes a second driving chip and a second chip condenser. The second coil is printed on a surface of the second printed circuit board opposite to the second driving magnet 1621, and the second driving chip and the second chip condenser are mounted on the other surface of the second printed circuit board.

Example 2

As shown in fig. 8 to 11, in addition to the embodiment 1, the external reflection structural assembly 2 further includes a third reflection member 21 for receiving and reflecting the object-side light, a third carrier 22 for carrying and mounting the third reflection member 21, a second base 23 for mounting the third carrier 22, and a second driving unit 24 for driving the third carrier 22 to rotate, wherein the third carrier 22 rotates relative to the second base 23 through a shaft 25, the third carrier 22 is fixedly connected to the shaft 25, and two ends of the shaft 25 are respectively connected to the second base 23.

In a preferred embodiment, the reflective surface of the third reflective element 21 preferably includes a metal layer, such as a metal layer formed of aluminum (Al) or silver (Ag), and the manufacturing method of the metal layer is not limited, including but not limited to plating, printing, coating, and the like. In the present invention, the third reflecting member 21 may be a prism, a reflecting mirror, or the like.

Referring to fig. 9, the third carrier 22 includes an inclined plate 221, the third reflector 21 is mounted on an inclined upward surface of the inclined plate 221, the third carrier 22 further includes side plates 222 located at two ends of the inclined plate 221, fixing holes 223 are respectively formed on the side plates 222 at the two ends, two ends of the shaft body 25 are tightly inserted and fixed in the fixing holes 223, that is, two ends of the shaft body 25 protrude out of the surfaces of the side plates 222.

Referring to fig. 9, the second base 23 includes a bottom plate 231 and two supporting plates 232 standing on the bottom plate 231, the third carrier 22 is installed between the two supporting plates 232, shaft holes 233 opposite to the fixing holes 223 are respectively formed on the two supporting plates 232, and both ends of the shaft body 25 are respectively inserted into the shaft holes 233 to be rotatably connected with the second base 23.

Referring to fig. 8 to 9, the second driving unit 24 includes a third driving magnet 241 and a third coil 242. One of the third driving magnet 241 and the third coil 242 is disposed on a side of the bottom plate 231 of the second base 23 facing the third carrier 22, and the other of the third driving magnet 241 and the third coil 242 is disposed at a position of the third carrier 22 corresponding to the bottom plate 231 of the second base 23. For example, as shown in fig. 9 to 11, the third coil 242 is disposed on the side of the bottom plate 231 of the second base 23 facing the third carrier 22, and the third driving magnet 241 is disposed on the third carrier 22; and vice versa. In the preferred embodiment, referring to fig. 8, the third driving magnet 241 is L-shaped and covers the third carrier 22 near the corner of the third coil 242.

The third coil 242 generates a magnetic field when energized, and generates an interaction force with the third driving magnet 241, thereby pushing the third carrier 22 to rotate back and forth by a certain angle around the shaft 25.

The two ends of the shaft body 25 are provided with the abutting parts 26 for abutting against the shaft body 25, the abutting parts 26 are fixed on the supporting plate 232, the abutting parts 26 are sheet bodies, and the end surfaces of the two ends of the shaft body 25 are planar. Specifically, the abutting member 26 is fixed to the other side surface of the support plate 232 away from the shaft body 25. Resistance reducing structures 27 for reducing rotational friction resistance are provided between the respective ends of the shaft body 25 and the corresponding abutting pieces 26.

Referring to fig. 9, in some embodiments, the resistance reducing structure 27 is a separate sphere structure disposed between the shaft 25 and the abutting member 26, and is a sphere structure having a substantially spherical shape. The end faces of the shaft 25 at both ends are planar. The abutment 26 is plate-shaped. One end surface of the shaft body 25 and the surface of the abutting member 26 abut against both sides of the resistance reducing structure 27, respectively. The other end surface of the shaft body 25 and the surface of the other abutting member 26 abut against both sides of the other resistance reducing structure 27, respectively.

Referring to fig. 10, in another embodiment, the resistance reducing structure 27 is a hemisphere protruding from the side of the abutting member 26 facing the shaft 25, and is a hemisphere protruding from the abutting member 26. The end surfaces of both ends of the shaft body 25 are planar. One end surface of the shaft body 25 abuts against the resistance reducing structure 27 of the abutting member 26, and the other end surface of the shaft body 25 abuts against the resistance reducing structure 27 of the other abutting member 26.

Referring to fig. 11, in another embodiment, the resistance reducing structure 27 is a ball structure formed on the end surfaces of the shaft 25, and has a round head, and the abutting member 26 has a plate shape. The two abutting members 26 abut against the resistance reducing structures 27 at both ends of the shaft body 25, respectively.

Through the design, resistance reducing structures 27 are arranged between the two ends of the shaft body 25 and the corresponding abutting pieces 26 respectively, so that the rotating friction resistance can be reduced.

Example 3

Further, in addition to the embodiment 2, referring to fig. 12 to 13, at least one pair of mutually repulsive magnet assemblies are respectively disposed on the two supporting plates 232 and the two side plates 222 of the third carrier 22, each pair of magnet assemblies includes the first magnet 100 and the second magnet 200, and the same magnetic poles of the first magnet 100 and the second magnet 200 are disposed oppositely, that is, the S pole of the first magnet 100 is disposed oppositely to the S pole of the second magnet 200, or the N pole of the first magnet 100 is disposed oppositely to the N pole of the second magnet 200.

By designing a pair of opposing magnets between both sides of the third carrier 22 and the second base 23, the third carrier 22 is prevented from being deflected in other directions (e.g., left and right directions) when rotating around the shaft 25, so that the precision of the OIS execution is ensured, and the third carrier 22 can be fixed to the second base 23 by magnetic force.

Referring to fig. 12, in some embodiments, a first groove 234 is formed on a side of each supporting plate 232 of the second base 23 facing the third carrier 22, and the first magnet 100 is adapted to the first groove 234 and disposed in the first groove 234; the second grooves 224 are respectively disposed at positions corresponding to the first grooves 234 on two sides of the third carrier 22 facing the supporting plate 232, and the second magnet 200 is adapted to the second grooves 224 and disposed in the second grooves 224. The first recess 234 is separately formed on the supporting plate 232 independently of the shaft hole 233, and similarly, the second recess 224 is separately formed on the side plate 222 of the third carrier 22 independently of the fixing hole 223.

Referring to fig. 13, in other embodiments, each support plate 232 is formed with a ring-shaped first counterbore 235 around the axial hole 233 on the side facing the third carrier 22, the first counterbore 235 is a non-through hole, and the axial hole 233 is a through hole and is located at the center of the first counterbore 235. The first counterbore 235 may be annular, triangular annular, square annular, or any other shape. The first magnet 100 is adapted to the first counterbore 235 and disposed in the first counterbore 235, and the first magnet 100 is provided with a through hole 300 for inserting the shaft body 25. The third carrier 22 is formed with a ring-shaped second counter bore 225 around the fixing hole 223 at both sides facing the support plate 232, the second counter bore 225 is a non-through hole, and the fixing hole 223 is a through hole and is located at the center of the second counter bore 225. The second magnet 200 is adapted to the second counterbore 225 and disposed in the second counterbore 225, and a through hole 300 for inserting the shaft body 25 is formed in the second magnet 200.

Example 4

As shown in fig. 14, the present embodiment is substantially the same as embodiment 1, and the repeated parts are not repeated, but the difference is that the restoring element in the present embodiment is an elastic element 160, that is, the elastic element 160 replaces the sliding unit 17 in embodiment 1, and the structure that the sliding unit 17 is used as the first reflective module 11 and the second reflective module 12 is changed to the structure that the elastic element 160 is used as the first reflective module 11 and the second reflective module 12. That is, in the present embodiment, the voice coil motor structure 1 includes an outer cover 13, a first base 15, a first reflection module 11, a second reflection module 12 for reflecting light from the first reflection module 11, a first driving unit 16, and a back cover 14, and the first reflection module 11 and the second reflection module 12 include a plurality of elastic members 160 for resetting the same. The first and second reflection members 111 and 121 are driven by the first and second driving assemblies 161 and 162 to move and reset by the elastic deformation force of the elastic member 160.

A correction function of the ois (optical Image stabilization) in the moving direction can be obtained by operating the first reflector 111 and the second reflector 121 in the same direction and by the same moving amount; by operating the first reflector 111 and the second reflector 121 with the same movement in opposite directions, the af (auto focus) correction function can be obtained.

The resilient member 160 is a spring plate, although it will be appreciated that the resilient member 160 may be other structures that provide a resiliently deforming force. The elastic member 160 is located between the first reflective module 11 and the second reflective module 12, between the first reflective module 11 and the first base 15, and between the second reflective module 12 and the first base 15.

The elastic deformation force provided by the elastic member 160 should be in the same line as the driving force provided by the first driving unit 16. For example, the elastic member 160 is a spring plate fixed to the first carrier 112 and the second carrier 122. As shown in fig. 15 and 16, the side wall of the first carrier 112 facing the second carrier 122 and the side wall of the first carrier 112 facing the first base 15 are provided with spring pieces. Similarly, the spring pieces are fixedly disposed on the side wall of the second carrier 122 facing the first carrier 112 and the side wall of the second carrier 122 facing the first base 15. The plurality of spring pieces are disposed to be perpendicular to the moving direction of the first and second reflection members 111 and 121. Specifically, the second carrier 122 further includes a second reflective base 123, the second carrier 122 carries the second reflective element 121, and the second reflective base 123 and the second carrier 122 are connected to each other by an elastic element 160, each of the elastic elements 160 has one end fixedly disposed on the second carrier 122 and the other end fixedly disposed on the second reflective base 123, and the second carrier 122 carries the second reflective element 121 and can move in a direction perpendicular to the elastic element 160 relative to the second reflective base 123 through a driving force. Similarly, the first carrier 112 further includes a first reflective base 113, the first carrier 112 carries the first reflective element 111, and the first reflective base 113 and the first carrier 112 are connected to each other by an elastic element 160, each elastic element 160 has one end fixedly disposed on the first carrier 112 and the other end fixedly disposed on the first reflective base 113, and the first carrier 112 carries the first reflective element 111 and can move in a direction perpendicular to the elastic element 160 relative to the first reflective base 113 by a driving force.

Example 5

As shown in fig. 17 to 19, this embodiment is substantially the same as embodiment 1, and repeated parts are not repeated herein, except that the embodiment further includes a first shielding component 210.

The first shielding component 210 is disposed on the external reflection component 2, and specifically, the first shielding component 210 is disposed on a side of the external reflection component 2 close to the object, and is combined with the voice coil motor structure 1 to form a rectangular parallelepiped shape. The first shielding component 210 has a first hole 220 formed on a horizontal plane facing the external reflection structural component 2, a projection of the external reflection structural component 2 on the horizontal plane corresponds to a position of the first hole 220, and an incident light is incident to the external reflection structural component 2 through the first hole 220. Specifically, the first hole 220 is adapted to the actual size of the incident light in the optical design, and when the incident light is viewed from various angles, various components inside the voice coil motor structure 1 can be seen, so as to achieve the effect of blocking stray light.

However, after the incident light at each angle enters the voice coil motor structure 1, various stray light is still generated on the components reflected to the inside to a certain extent, and ghost images are formed to cause a stray light problem and affect the imaging quality. In order to solve the above problem, it is more preferable that the present embodiment further includes a second shielding assembly 230, and the second shielding assembly 230 is provided with a second hole 240. The second shielding component 230 is installed between the external reflection structural component 2 and the lens module 3, and the light reflected by the external reflection structural component 2 passes through the second hole 240, enters the lens module 3, and then enters the first reflection module 11 and the second reflection module 12 in sequence.

The shape of the first hole 220 and the second hole 240 may be non-circular, such as any one of a polygon, a polygon symmetrical to an optical axis, a polygon asymmetrical to an optical axis, a racetrack shape, a bottle shape, an oak barrel shape, a shape of the upper half of a red wine bottle, a wave shape, a flower shape, a leaf shape, a cloud shape, a star shape, a saw-tooth shape, an love heart shape, a shape including both straight lines and arcs, or a shape formed by connecting irregular lines. The design is beneficial to effectively reducing the size, the thickness and the volume of the whole lens module, and partial shapes such as wave shape, cloud shape, star shape and sawtooth shape can also achieve the effect of reducing stray light and ghost image, so that the periscopic lens module is effectively thinned.

So set up, can utilize the second to shelter from the shape of subassembly 230 under the condition of guaranteeing to lead to light, shelter from the inside part shape that need not show of voice coil motor structure 1 to can block the ghost that light that outside large-angle jetted into formed through the internal component reflection, solve the ghost and cause stray light problem and promote imaging quality.

More preferably, the second shielding member 230 is entirely coated with a matte ink to further prevent the light from reflecting by the second shielding member 230 to form a ghost image.

The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the invention are therefore considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a periscopic lens module, includes the voice coil motor structure, the voice coil motor structure includes first base, first reflection module, is used for the reflection to come from the second reflection module of the light of first reflection module and be used for the drive first reflection module with the second reflection module is in the first drive unit of concerted movement or reverse motion on the first base, its characterized in that, first reflection module with the second reflection module respectively through an at least reset assembly with first pedestal connection.

2. A periscopic lens module according to claim 1, wherein the reset component is at least one sliding unit, the first reflective module and the second reflective module are respectively slidably connected to the first base through the sliding unit, the first reflective module comprises a first reflective member and a first carrier, and the first reflective member is mounted on the first carrier; the second reflection module comprises a second reflection piece and a second carrier, the second reflection piece is arranged on the second carrier, and the sliding unit is a ball; the reflecting surface of the first reflecting piece and the reflecting surface of the second reflecting piece respectively comprise metal layers;

one of the first carrier and the first base is provided with at least one first accommodating groove for the balls to roll in a positioning manner, and the corresponding position of the other one of the first carrier and the first base is provided with at least one first sliding groove extending along the movement direction of the first carrier; one of the second carrier and the first base is provided with at least one second accommodating groove for the balls to roll in a positioning manner, and the other of the second carrier and the first base is provided with at least one second sliding groove extending along the movement direction of the second carrier at a corresponding position.

3. A periscopic lens module according to claim 2, wherein the first driving unit comprises a first driving assembly for driving the first reflective module and a second driving assembly for driving the second reflective module, the first driving assembly comprising a first driving magnet disposed on one of the first base and the first carrier, and a first printed circuit unit and a first suction yoke disposed on the other; the second driving assembly includes a second driving magnet disposed on one of the first base and the second carrier, and a second printed circuit unit and a second attracting yoke disposed on the other; the first printed circuit unit comprises a first coil and a first printed circuit board, the first coil is printed on one surface of the first printed circuit board opposite to the first driving magnet, the second printed circuit unit comprises a second coil and a second printed circuit board, and the second coil is printed on one surface of the second printed circuit board opposite to the second driving magnet;

the reflecting surface of the first reflecting piece is perpendicular to the reflecting surface of the second reflecting piece, and the first reflecting piece and the second reflecting piece can be prisms, reflecting prisms or reflecting mirrors; two first accommodating grooves are formed in the positions, corresponding to the first sliding grooves in the lower side of the first carrier, of the lower frame wall of the first base, and two second accommodating grooves are formed in the positions, corresponding to the second sliding grooves in the lower side of the second carrier, of the lower frame wall of the first base; two first accommodating grooves are formed in the positions, corresponding to the first sliding grooves, of the upper frame wall of the first base and the upper side of the first carrier, and two second accommodating grooves are formed in the positions, corresponding to the second sliding grooves, of the upper frame wall of the first base and the upper side of the second carrier.

4. A periscopic lens module according to claim 1, further comprising an external reflection structure for receiving and reflecting object-side light, the external reflection structure comprising:

a third reflector for receiving and reflecting the object side light, the reflecting surface of the third reflector comprising a metal layer;

a third carrier for carrying and mounting the third reflector;

the second base is used for mounting the third carrier and comprises a bottom plate and two supporting plates which are vertically arranged on the bottom plate, the third carrier rotates relative to the second base through a shaft body, the third carrier is fixedly connected to the shaft body, and two ends of the shaft body are respectively connected with the second base; the third carrier is positioned between the two support plates, shaft holes are respectively formed in the two support plates, and two ends of the shaft body are respectively arranged in the shaft holes; fixing holes for inserting and fixing the shaft bodies are formed in two sides of the third carrier respectively, and the fixing holes correspond to the shaft holes;

and the second driving unit is used for driving the third carrier to rotate.

5. The periscopic lens module according to claim 4, wherein the two ends of the shaft body are provided with an abutting member for abutting against the shaft body, the abutting member is fixed on the supporting plate, and a resistance reducing structure is arranged between the shaft body and the corresponding abutting member; the resistance reducing structure is a ball structure arranged between the shaft body and the abutting part; or the resistance reducing structure is a sphere structure formed by protruding one side of the abutting part towards the shaft body; or the resistance reducing structure is a spherical structure formed on the end faces of the two ends of the shaft body.

6. A periscopic lens module according to claim 4, wherein each of the support plates is provided with at least one pair of mutually-repelling magnet assemblies on a side opposite to the third carrier, each pair of magnet assemblies comprising a first magnet and a second magnet, the same magnetic poles of the first magnet and the second magnet being oppositely arranged; a first groove is formed in one side, facing the third carrier, of each supporting plate, and the first magnet is arranged in the first groove; a second groove is formed in the position, corresponding to the first groove, of the two sides, facing the supporting plate, of the third carrier, and the second magnet is arranged in the second groove; or an annular first counter bore is formed around the shaft hole on one side of each support plate facing the third carrier, the first magnet is arranged in the first counter bore, and a through hole for penetrating the shaft body is formed in the first magnet; the third carrier faces to two sides of the supporting plate, an annular second counter bore is formed around the fixing hole, the second magnet is arranged in the second counter bore, and a through hole used for penetrating the shaft body is formed in the second magnet.

7. A periscopic lens module according to claim 4, wherein the second driving unit comprises a third driving magnet and a third coil, one of the third driving magnet and the third coil is disposed on a side of the bottom plate of the second base facing the third carrier, and the other of the third driving magnet and the third coil is disposed at a position of the third carrier corresponding to the bottom plate of the second base;

the periscopic lens module further comprises an image sensor and a lens module, the lens module is used for receiving light rays reflected by the outer reflection structure assembly, the lens module comprises at least three lenses and a diaphragm, the voice coil motor structure is arranged between the lens module and the image sensor, the light rays from the object side enter the outer reflection structure assembly in sequence along a first direction, then are reflected to the lens module and the first reflection module along a second direction, then reach the second reflection module along a third direction, and finally reach the image sensor along the second direction.

8. The periscopic lens module as set forth in claim 7, further comprising a first shielding component covering the external reflection structure component, wherein a first hole is opened on a surface of the first shielding component facing the external reflection structure component, and incident light is incident on the external reflection structure component through the first hole; the lens module is characterized by further comprising a second shielding assembly, the second shielding assembly is arranged between the outer reflection structure assembly and the lens module, a second hole is formed in the second shielding assembly, and light rays penetrate through the second hole to be incident to the lens module.

9. The periscopic lens module as claimed in claim 8, wherein the shape of at least one of the lens, the inner and outer peripheral portions of the aperture, the first and second apertures is non-circular or polygonal symmetrical to the optical axis or polygonal asymmetrical to the optical axis or wave or flower or blade or cloud or star or saw-tooth or heart or a combination thereof including straight and curved lines or a combination of irregular lines.

10. The periscopic lens module as set forth in claim 1, wherein the restoring component is a plurality of elastic members, the elastic members are located between the first reflective module and the second reflective module, between the first reflective module and the first base, and between the second reflective module and the first base; the first reflection module further comprises a first reflection piece, a first carrier and a first reflection base, and the second reflection module further comprises a second reflection piece, a second carrier and a second reflection base;

the first carrier carries the first reflector and the second carrier carries the second reflector;

the second reflecting base and the second carrier are connected with each other through the elastic piece, and the first reflecting base and the first carrier are connected with each other through the elastic piece.

Images