CN113286019B

CN113286019B - Optical module, camera and electronic equipment

Info

Publication number: CN113286019B
Application number: CN202110497640.8A
Authority: CN
Inventors: 汪科; 罗科
Original assignee: Nanchang OFilm Optoelectronics Technology Co Ltd
Current assignee: Nanchang OFilm Optoelectronics Technology Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-06-21
Anticipated expiration: 2041-05-07
Also published as: CN113286019A

Abstract

The utility model provides an optical module, camera and electronic equipment, this optical module includes the light path component of turning back, the light path component of turning back includes first surface of turning back and the second surface of turning back, first surface of turning back and the second surface of turning back set up relatively, light is from the incidence of first direction and produce reflection and refraction at first surface of turning back, the light of reflection is through the reflection of second surface of turning back and jet out from the second direction, the light of refraction jets out from first surface of turning back, utilize light to satisfy specific relation at first surface of turning back refraction and reflection, the image of light formation through calibration refraction, can realize the calibration to the image of the light formation of reflection, can eliminate the distortion that the assembly caused, guarantee the formation of image effect, improve the formation of image quality.

Description

Optical module, camera and electronic equipment

Technical Field

The invention belongs to the technical field of optical imaging, and particularly relates to an optical module, a camera and electronic equipment.

Background

Periscopic camera transversely puts the camera lens in electronic equipment such as smart mobile phone, and it changes the income light angle through reflecting the light of incidenting for spare parts such as camera can include more lenses and anti-shake structure. The periscopic camera can improve the imaging effect without increasing the thickness of the electronic equipment under the condition of increasing the size of the lens of the camera in the optical axis direction, thereby achieving rapid development.

Present periscopic camera mainly adopts the prism to reflect light, and the camera is when the equipment, because skew, rotation, slope, assembly tolerance when the equipment, often the formation of image of final product has certain distortion, and this just needs to calibrate, however, present scheme mainly calibrates through the image processing algorithm in later stage, and the effect is not good, influences the formation of image effect.

Disclosure of Invention

The invention aims to provide an optical module, a camera and electronic equipment, which can be calibrated when the camera is assembled and can improve the imaging effect.

In order to realize the purpose of the invention, the invention provides the following technical scheme:

in a first aspect, the present invention provides an optical module, including an optical path folding element, where the optical path folding element includes a first folding surface and a second folding surface, the first folding surface and the second folding surface are oppositely disposed, light enters from a first direction and is reflected and refracted on the first folding surface, the reflected light is reflected by the second folding surface and exits from a second direction, and the refracted light exits from the first folding surface, where an included angle is formed between the first direction and the second direction, and the light refracted from the first folding surface is used to calibrate the light exiting from the second direction.

Through setting up the prism, utilize light to satisfy specific relation at first refraction and reflection at surface refraction and reflection, and then form the image that satisfies specific relation, the image that forms through the light of calibration refraction, can realize the calibration to the image of the light formation of reflection, can calibrate when optical module equipment is assembled, need not later stage algorithm and calibrate, also can accomplish the back and just can calibrate not dismantling after the equipment finishes, can eliminate the distortion that the assembly caused, guarantee the formation of image effect, improve the imaging quality.

In one embodiment, the image formed by the light refracted from the first folding surface is equivalent to the image formed by the light refracted from the second direction, and the image formed by the light refracted from the first folding surface is collected and calibrated to calibrate the image formed by the light refracted from the second direction. The image formed by the light rays emitted from the first refraction and reflection surface is calibrated by collecting and calibrating the image formed by the light rays emitted from the light emitting surface, and only the fact that whether the image formed by the light rays emitted from the first refraction and reflection surface is the real world restoration needs to be judged, so that the operation is simple and the implementation is easy.

In one embodiment, the light path turning element is a prism, and the prism further includes a light incident surface and a light emitting surface, the light incident surface is opposite to the first turning surface, the light emitting surface is opposite to the second turning surface, and the light incident surface and the light emitting surface have an included angle; or, the light path folding-back component is a plurality of lenses.

In one embodiment, the prism is a pentaprism, and the light incident surface is perpendicular to the light emergent surface.

In one embodiment, the first folding surface is formed with a transflective film for adjusting transmittance and reflectance of light to 1: 1. the transmittance and the reflectivity of light are adjusted to be 1 by forming a semi-reflecting and semi-transmitting film: the image formed by the light rays emitted from the first refraction and reflection surface is the same as the image formed by the light rays emitted from the light emitting surface, the implementation is simple, the semi-reflection and semi-transmission film process is mature, and the manufacture is easy.

In one embodiment, a shielding member is disposed on a path of the light refracted by the first refraction surface, and the shielding member is used for shielding the light refracted by the first refraction surface after the light is calibrated. After the light is calibrated, when the camera and the electronic equipment are formed by subsequent assembly, in order to avoid redundant stray light from interfering with imaging, the shielding piece is used for shielding the light refracted from the first refraction and reflection surface, and the imaging effect of the light emergent from the light emergent surface is ensured.

In one embodiment, the shielding member moves between a first position and a second position, in the first position, the shielding member does not shield the light refracted by the first refraction surface, and in the second position, the shielding member shields the light refracted by the first refraction surface; or the shielding piece is switched between a transparent state and an opaque state, the shielding piece is in the transparent state during light ray calibration, and the shielding piece is switched to the opaque state after the light ray calibration is finished

In one embodiment, the optical module further includes a mounting base, a supporting member, a driving member, and a sliding member, wherein the optical path folding element is disposed on the supporting member, the driving member is disposed on the mounting base, the driving member is disposed on the supporting member, the sliding member is capable of translating and rotating relative to the mounting base, and the driving member drives the driving member, so that the supporting member is capable of translating and rotating relative to the mounting base. Under the action force of the driving piece driving the transmission piece, the supporting piece and the prism in the supporting piece can move and rotate relative to the mounting seat, the imaging error generated by shaking of the machine body can be compensated, and the optical anti-shaking effect is achieved.

In one embodiment, the driving member includes a flexible circuit board and a plurality of coils, the driving member is made of a magnetic material and has a plurality of numbers, the plurality of coils are disposed on the flexible circuit board and respectively correspond to the plurality of sides of the supporting member one by one, the driving member is disposed at a position on the supporting member opposite to the coils, the driving member and the coils have an interval, and the plurality of coils are selectively energized to generate a magnetic force with the corresponding driving member to drive the supporting member to move or rotate. Through setting up a plurality of coils of flexible circuit board, the driving medium sets up on support piece, and the selective circular telegram of steerable each coil realizes the compensation of the shake of prism in each direction, has good optics anti-shake effect.

In one embodiment, the sliding member includes a main body portion and a plurality of balls, a first guide rail and a second guide rail are respectively disposed on two opposite surfaces of the main body portion, the plurality of balls are respectively disposed on the first guide rail and the second guide rail, the first guide rail is connected to the mounting base through the balls, the second guide rail is connected to the supporting member through the balls, and the extending directions of the first guide rail and the second guide rail are perpendicular to each other. The rolling connection is realized through the mode of guide rail and ball, can reduce frictional force, and the guide rail has limiting displacement to the ball simultaneously for the steady roll of ball on the guide rail avoids falling out outside the guide rail, improves the sensitivity and the reliability of optics anti-shake.

In one embodiment, the optical module further includes a first magnetic member and a second magnetic member, the first magnetic member is disposed on the sliding member, the second magnetic member is disposed on the supporting member, the positions of the first magnetic member and the second magnetic member correspond, and the first magnetic member and the second magnetic member attract each other to keep the supporting member connected to the sliding member. Through the magnetic force effect of first magnetic part and second magnetic part for keep being connected through the slider between the bottom plate of support piece and mount pad, the side wall support of support piece and mount pad passes through the coil of driving piece and the magnetic force effect of driving medium, makes the structure that can guarantee support piece have good support nature and adjustability, can compensate the fuselage shake, simple structure.

In a second aspect, the present invention further provides a camera including a lens, an image sensor and the optical module set in any one of the various embodiments of the first aspect, wherein the optical module set is disposed on a light incident side of the lens, the image sensor is disposed on a light emergent side of the lens, and light reflected by the first refraction and return surface and emitted by the second refraction and return surface is imaged on the image sensor through the lens.

By adopting the optical module provided by the embodiment of the invention, the optical module meets a specific relation by utilizing the refraction and reflection of light on the first refraction and reflection surface through the prism, so that an image meeting the specific relation is formed, the image formed by the reflected light can be calibrated by calibrating the image formed by the refracted light, the calibration can be carried out when the optical module is assembled, the calibration can be carried out without disassembling after the assembly is finished, a later algorithm is not needed for calibration, the distortion caused by the assembly can be eliminated, the imaging effect is ensured, the imaging quality is improved, meanwhile, the anti-shake mechanism is arranged at the prism, an additional anti-shake mechanism is not needed, and the size is reduced.

In a third aspect, the present invention further provides an electronic device, including the camera in the second aspect. By using the optical module in the camera, the optical module meets a specific relation by refraction and reflection of light on the first refraction and return surface through the prism, an image meeting the specific relation is further formed, the image formed by the refracted light is calibrated, the image formed by the reflected light can be calibrated, the calibration can be performed when the optical module is assembled, the calibration can be performed without disassembly after the assembly is completed, the calibration is performed without a later algorithm, the distortion caused by the assembly can be eliminated, the imaging effect is ensured, the imaging quality is improved, meanwhile, the anti-shake mechanism is arranged at the prism, an additional anti-shake mechanism is not required, and the size is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of an optical module;

FIG. 2 is a schematic diagram of another view angle of the optical module of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the optical module of FIG. 1;

FIG. 4 is a schematic view of the light propagation path of a prism;

FIG. 5 is a schematic diagram of a portion of the optical module of FIG. 1;

FIG. 6 is a schematic diagram of a portion of the optical module of FIG. 1;

FIG. 7 is a schematic diagram of a portion of the optical module of FIG. 1;

FIG. 8 is a schematic diagram of a portion of the optical module of FIG. 1;

FIG. 9 is a schematic diagram of a portion of the optical module of FIG. 1;

fig. 10 is an exploded view of a portion of the optical module of fig. 1.

Description of reference numerals:

10-upper cover, 101-first through hole, 102-second through hole, 11-top plate, 12-side plate;

20-an installation seat, 201-a third through hole, 21-a bottom plate and 22-a side wall;

30-support piece, 301-opening, 302-mounting groove, 305-accommodating cavity, 308-lightening hole;

40-flexible circuit board, 41-circuit part, 42-coil, 43-connection end;

50-a transmission member;

60-sliding part, 601-first guide rail, 602-second guide rail, 61-main body part, 62-ball, 63-first magnetic part, 64-second magnetic part;

80-prism, 81-light-in surface, 82-first refraction surface, 83-second refraction surface, 84-light-out surface, 85-connecting surface and 86-side reflection surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the invention provides an optical module, which includes a mounting base 20, an upper cover 10, a supporting member 30, a flexible circuit board 40, and a prism 80. The optical module is substantially rectangular, the upper cover 10 is covered on the mounting base 20, and the upper cover 10 and the mounting base 20 form a housing of the whole optical module. The flexible circuit board 40 and the prism 80 are enclosed by a housing formed by the mounting base 20 and the upper cover 10, wherein the flexible circuit board 40 has a connection end portion 43 protruding out of the housing.

The upper cover 10 includes a top plate 11 facing away from the mounting seat 20 and a plurality of side plates 12 connected to the top plate 11, the top plate 11 is provided with a first through hole 101, the side plate 12 is provided with a second through hole 102, and the mounting seat 20 is provided with a third through hole 201. The first through hole 101, the second through hole 102, and the third through hole 201 are used for light to pass through.

The prism 80 is used as a light path turning element, and specifically may be a pentaprism, and of course, the prism 80 may also be formed by splicing two trigonal mirrors.

In other embodiments, the prism 80 may be replaced by other optical path folding elements, for example, the optical path folding element may be a plurality of lenses, and the lenses may be plane mirrors or curved mirrors, wherein each lens may have a refractive index and a reflectivity as required, and is not limited herein.

Referring to fig. 3, taking the prism 80 as a pentaprism as an example, the prism 80 includes a light incident surface 81, a first returning surface 82, a second returning surface 83, a light emitting surface 84 and a connecting surface 85. The light enters the light incident surface 81 from the first direction, and the light exits from the light exiting surface 84 in the second direction. The light incident surface 81 and the light emitting surface 84 form an included angle, that is, the included angle is formed between the first direction and the second direction, and the included angle may be selected from 60 ° to 120 °. Optionally, the included angle is 90 °, so that the incident light direction is perpendicular to the emergent light direction, a periscope-like structure is formed, and devices on the light path can be conveniently arranged. The first returning surface 82 is disposed opposite to the light incident surface 81, and the first returning surface 82 may be connected to the light emitting surface 84. The second returning surface 83 is opposite to the light emitting surface 84, and the second returning surface 83 may be connected to the light incident surface 81. The first returning surface 82 and the second returning surface 83 are disposed opposite to each other. The connecting surface 85 connects one end of the first returning surface 82 away from the light emitting surface 84 and one end of the second returning surface 83 away from the light incident surface 81. The prism 80 is mounted on the support 30, and the support 30 has openings at positions corresponding to the light incident surface 81, the first returning surface 82 and the light emitting surface 84.

The first through hole 101 of the top plate 11 of the upper cover 10 corresponds to the light incident surface 81, the second through hole 102 of the side plate 12 corresponds to the light emitting surface 84, and the third through hole 201 of the mounting seat 20 corresponds to the first folding surface 82. The three openings of the support 30 are for allowing light to pass through.

Referring to fig. 4, light rays enter the prism 80 from the light incident surface 81, as shown by the light ray a in fig. 4; the light is reflected and refracted at the first returning surface 82, and the reflected light is reflected by the second returning surface 83 and exits from the light exiting surface 84, as shown by the light B in fig. 4; the refracted ray exits the first reentrant surface 82 as shown by ray C in fig. 4. The light exiting from the light exiting surface 84 is used for imaging, and the light refracted from the first refraction surface 82 is used for calibrating the light exiting from the light exiting surface 84.

In order to ensure the transmission efficiency of the light and reduce the loss, the second folding surface 83 may be fully reflective, and the connecting surface 85 may also be fully reflective, so that the light entering the prism 80 is only emitted from the first folding surface 82 and the light emitting surface 84.

When the camera is assembled, after the structures such as the prism 80, the supporting piece 30, the mounting seat 20 and the upper cover 10 are assembled, calibration operation can be performed, and the camera does not need to be disassembled and calibrated by using an algorithm due to the imaging problem of the optical module after the camera is completely assembled, so that time and cost are saved. In addition, the calibration can be performed in the camera assembling process, and the calibration can be performed for the first time or again without disassembling the camera after the camera is assembled.

Because the light is refracted and reflected on the first refraction and reflection surface 82, for the same light, the reflection and the refraction of the same light on the first refraction and reflection surface 82 meet the optical law, the relevance between the reflected light and the refracted light can be obtained through the optical law, and the relevance is utilized to obtain the relevant rule of the reflected light by detecting the relevant rule of the refracted light. According to the type of the camera, such as a conventional lens, a macro lens, a telephoto lens, a zoom lens, etc., a specific perspective relationship is required between the imaged image and the actual image, and according to the perspective relationship, the relationship between the reflected light and the refracted light can be obtained by combining the correlation between the reflection and the refraction, and further the relationship between the image formed by the reflected light and the image formed by the refracted light can be obtained. The characteristics of the image formed by the reflected light can be obtained as long as the characteristics of the image formed by the refracted light are detected, and the image formed by the reflected light is calibrated as long as the image formed by the refracted light is calibrated during calibration.

In a specific calibration operation, the prism 80 (or the support 30) is moved or rotated to continuously detect the characteristics of the light refracted from the first refraction surface 82 until the characteristics meet the required characteristics of the specific camera, and the position of the prism 80 is set as an initial position to complete the calibration. For the camera with the anti-shake function, when the anti-shake mechanism moves subsequently, the position before the movement is the initial position, and the camera can also return to the initial position after the anti-shake movement is completed subsequently.

Therefore, through setting up prism 80, utilize light to satisfy specific relation at first refraction and reflection of surface 82, and then form the image that satisfies specific relation, the image that forms through the light of calibration refraction, can realize the calibration to the image of the light formation of reflection, can calibrate when optical module equipment is assembled, need not later stage algorithm and calibrate, also can calibrate without dismantling just after the equipment finishes, can eliminate the distortion that the assembly caused, guarantee the formation of image effect, improve the imaging quality. Meanwhile, the anti-shaking mechanism can be arranged at the prism, an additional anti-shaking mechanism is not required to be arranged, and the size can be reduced.

Alternatively, the image formed by the light rays exiting from the first folding surface 82 is equivalent to the image formed by the light rays exiting from the light exit surface 84, and the image formed by the light rays exiting from the first folding surface 82 is corrected by collecting and correcting the image formed by the light rays exiting from the light exit surface 84 (in the second direction).

Specifically, an imaging device may be disposed on one side of the light refracted by the first folding surface 82, and the light refracted by the first folding surface 82 is collected to form an image. The image formed by the light exiting from the first folding surface 82 is proportionally related to the image formed by the light exiting from the light exit surface 84 according to the relationship between the light refracted and reflected by the first folding surface 82. The equivalence specifically means that the size of the image is scaled, and the content of the image is completely the same. After the image of the light emitted from the first refraction surface 82 is calibrated, the image of the light emitted from the light emitting surface 84 can be calibrated.

The image formed by the light emitted from the light emitting surface 84 is calibrated by collecting and calibrating the image formed by the light emitted from the first refraction and reflection surface 82, and the operation is simple and easy to implement.

For a common camera, the imaging of the camera is usually real world restoration, that is, what is seen, and what is shown in the captured image. In this case, the image formed by the light refracted and emitted from the first folding surface 82 may be the same as the image formed by the light emitted from the light emitting surface 84, and it is only necessary to determine whether the image formed by the light emitted from the first folding surface 82 is the real world restoration, so that the calibration can be simply achieved and the optical performance such as aberration and chromatic aberration can be corrected.

Optionally, the first folding surface 82 is formed with a transflective film (not shown in the figure), and when the light is reflected and refracted by the first folding surface 82, the transflective film is used for adjusting the transmittance and reflectance of the light to be 1: 1.

specifically, the transflective film is not limited in material, and may include multiple layers, which may be formed by stacking various film layers with different functions, such as an antireflection film, a reflective film, and the like. The transmittance and the reflectivity of light are adjusted to be 1 by forming a semi-reflecting and semi-transmitting film: 1, the image formed by the light rays emitted from the first folding surface 82 is the same as the image formed by the light rays emitted from the light emitting surface 84, the implementation is simple, and the process for manufacturing the semi-reflecting and semi-permeable film is mature and easy to manufacture.

In an embodiment, referring to fig. 3, the supporting member 30 is provided with a shielding member (not shown) corresponding to the opening of the first refraction surface 82, i.e. the path of the light refracted and emitted by the first refraction surface, and after the light is calibrated, the shielding member is used to shield the opening of the supporting member 30 corresponding to the first refraction surface 82, i.e. the light refracted and emitted by the first refraction surface.

Optionally, the shield is a light-impermeable plate, film, or the like. The shielding piece moves between a first position and a second position, and when the shielding piece is at the first position, the shielding piece does not shield the light refracted by the first refraction surface 82, and when the shielding piece is at the second position, the shielding piece shields the light refracted by the first refraction surface 82. The shielding piece can be arranged on the supporting piece 30 or the mounting seat 20, and when the shielding piece is arranged on the supporting piece 30, the shielding piece can move and shield the opening 301 of the supporting piece 30 corresponding to the first turning surface 82, can shield the third through hole 201 of the mounting seat 20, and can also be placed between the opening 301 and the third through hole 201; when the shielding member is disposed on the mounting seat 20, the shielding member can move and shield the third through hole 201.

Optionally, the shielding member may be a color-changing material, the shielding member is switched between a transparent state and an opaque state, the shielding member is in the transparent state when the light calibration is performed, and the shielding member is switched to the opaque state after the light calibration is completed.

After the light calibration is completed, when the camera and the electronic device are formed by subsequent assembly, in order to avoid the interference of redundant stray light with imaging, the shielding member is used for shielding the light refracted from the first refraction and reflection surface 82, so that the imaging effect of the light emergent from the light emergent surface 84 is ensured.

Referring to fig. 3, 5 to 9, the optical module further includes a driving member, a transmission member 50 and a sliding member 60. The driving member is disposed on the mounting base 20, and the transmission member 50 is disposed on the supporting member 30. The slider 60 is translatable and rotatable relative to the mount 20, and the support 30 is translatable and rotatable relative to the slider 60. Specifically, the sliding member 60 is slidably coupled to the mounting base 20 in a first translational direction and rotatably coupled in a first rotational direction, and the supporting member 30 is slidably coupled to the sliding member 60 in a second translational direction and rotatably coupled in a second rotational direction. The first translation direction is perpendicular to the second translation direction, and the first rotation direction is perpendicular to the rotating shaft in the second rotation direction.

Specifically, referring to fig. 5 and 6, the mounting base 20 includes a bottom plate 21 and a side wall 22, the side wall 22 is connected to the peripheral edge of the bottom plate 21 and encloses to form an accommodating space, the supporting member 30 and the prism 80 are accommodated in the accommodating space, and the sliding member 60 is also accommodated in the accommodating space. The sliding member 60 is connected to the bottom plate 21 and connected to the supporting member 30, the driving member is disposed on the side wall 22, since the sliding member 60 can slide in a first translational direction relative to the bottom plate 21 and rotate in a first rotational direction, and the supporting member 30 can slide in a second translational direction relative to the sliding member 60 and rotate in a second rotational direction, under the action of the driving member driving the driving member 50, the supporting member 30 and the prism 80 therein can move and rotate relative to the mounting base 20, so as to compensate the imaging error caused by the shaking of the body, and achieve the optical anti-shake effect.

Referring to fig. 5, 6 and 9, the driving member includes a flexible circuit board 40 and a plurality of coils 42, and the transmission member 50 is made of a magnetic material and is plural in number. The plurality of coils 42 are disposed on the flexible circuit board 40 and correspond to a plurality of sides of the supporting member 30 one by one, the transmission member 50 is disposed on the supporting member 30 at a position opposite to the coils 42, and the transmission member 50 and the coils 42 have a gap. The plurality of coils 42 are selectively energized to magnetically interact with the corresponding transmission 50 to drive the support member 30 to move or rotate.

The flexible circuit board 40 includes a circuit portion 41 and a connecting end portion 43, the circuit portion 41 may extend along three side walls of the side wall 22 to form an "Contraband" structure, and the connecting end portion 43 is connected to the circuit portion 41 and has a plurality of connecting contacts. The coil 42 may be disposed on each of two opposite side walls of the "Contraband" shape of the circuit portion 41, the coil 42 may be disposed on a side wall connecting the middle of the two opposite sides, and the transmission member 50 may be a magnet or a magnet, which is disposed opposite to and spaced apart from each of the coils 42. As shown in fig. 8 and 10, a mounting groove 302 may be formed on an outer surface of the supporting member 30 to receive the driving member 50. The connecting end portion 43 is used for connection with a circuit board or the like to supply power to each coil 42.

The coil 42 is energized to form an electromagnet, which generates a magnetic force with the transmission member 50 to drive the transmission member 50 to move, and the transmission member 50 is forced to drive the supporting member 30 and the prism 80 on the supporting member 30 to move synchronously.

Therefore, by arranging the plurality of coils 42 of the flexible circuit board 40 and the transmission member 50 on the supporting member 30, the selective energization of each coil 42 can be controlled, so that the supporting member 30 moves in the first translation direction, rotates in the first rotation direction, moves in the second translation direction, rotates in the second rotation direction, and the like, thereby realizing the compensation of the shake of the prism in each direction and having good optical anti-shake effect.

Referring to fig. 6, 8 and 9, the sliding member 60 includes a main body 61 and a plurality of balls 62, a first guide rail 601 and a second guide rail 602 are respectively disposed on two opposite sides of the main body 61, the plurality of balls 62 are respectively disposed on the first guide rail 601 and the second guide rail 602, the first guide rail 601 is connected to the mounting base 20 through the balls 62, and the second guide rail 602 is connected to the supporting member 30 through the balls 62.

The first guide rail 601 and the second guide rail 602 may be respectively formed by grooves opened on two opposite surfaces of the main body 61. The first guide rail 601 extends in a first translational direction and a first rotational direction, and the second guide rail 602 extends in a second translational direction and a second rotational direction. Specifically, an orthographic projection of the first guide rail 601 on the bottom plate 21 of the mounting seat 20 is a straight line (i.e., a first translation direction), an orthographic projection of the side wall 22 on one side of the mounting seat 20 is an arc line (i.e., a first rotation direction), and similarly, an orthographic projection of the second guide rail 602 on the bottom plate 21 of the mounting seat 20 is a straight line (i.e., a second translation direction), and an orthographic projection of the second guide rail on one side of the mounting seat 20 is an arc line (i.e., a second rotation direction). Since the first and second translation directions are perpendicular, the orthogonal projections of the extending directions of the first and

second guide rails

601 and 602 on the base plate 21 are perpendicular. The first guide rail 601 and the second guide rail 602 need to be orthographically projected on two adjacent sides of the sidewall 22, rather than on the same side or two opposite sides. It should be understood that the positions of the first guide rail 601 and the second guide rail 602 on the slider 60 may be interchanged.

Optionally, the first guide rail 601 and the second guide rail 602 may be a plurality of guide rails, and the surface of the main body 61 corresponding to the positions of the first guide rail 601 and the second guide rail 602 may also be adaptively set to be an arc surface, so as to facilitate the movement and rotation of the main body 61 relative to the bottom plate 21 of the mount 20 and the movement and rotation of the main body 61 relative to the support member 30, thereby avoiding interference.

Alternatively, a guide rail corresponding to the first guide rail 601 may be disposed on the bottom plate 21 of the mounting base 20, and a guide rail corresponding to the second guide rail 602 may also be disposed on the supporting member 30.

Through the first guide rail 601, second guide rail 602 and a plurality of ball 62 that set up slider 60, make support piece 30 be connected through slider 60 and mount pad 20 and can realize the removal in first translation direction and second translation direction, and at the rotation of first direction of rotation and second direction of rotation, realize roll connection through the mode of guide rail and ball 62, can reduce frictional force, the guide rail has limiting displacement to ball 62 simultaneously, make ball 62 steady roll on the guide rail, outside avoiding falling out the guide rail, improve the sensitivity and the reliability of optics anti-shake.

Referring to fig. 3, the optical module further includes a first magnetic member 63 and a second magnetic member 64, and the first magnetic member 63 and the second magnetic member 64 may be made of magnets or magnets. The first magnetic member 63 is disposed on the sliding member 60, the second magnetic member 64 is disposed on the supporting member 30, the positions of the first magnetic member 63 and the second magnetic member 64 correspond, and the first magnetic member 63 and the second magnetic member 64 attract each other, so that the supporting member 30 and the sliding member 60 are kept connected.

Specifically, the first magnetic member 63 may be disposed on a surface of the main body 61 of the sliding member 60 facing the bottom plate 21 of the mounting seat 20, and may be provided with a groove for receiving the first magnetic member, and the second magnetic member 64 may be disposed on a surface of the supporting member 30 facing the sliding member 60, and may also be provided with a groove for receiving the second magnetic member.

Through the magnetic force effect of first magnetic part 63 and second magnetic part 64 for keep being connected through slider 60 between the bottom plate 21 of support piece 30 and mount pad 20, support piece 30 and the side wall 22 support of mount pad 20 pass through the coil 42 of driving piece and the magnetic force effect of driving piece 50, make the structure that can guarantee support piece 30 have good support nature and adjustability, can compensate the fuselage shake, simple structure.

Referring to fig. 3 and 10, the supporting member 30 may be provided with a receiving cavity 305 having three open sides, wherein two open sides are substantially flush with the light incident surface 81 and the light emitting surface 84, and the two open sides can be communicated with each other. The opening 301 corresponding to the first returning surface 82 may be a through hole. The prism 80 includes two side reflection surfaces 86 in addition to the light incident surface 81, the first returning surface 82, the second returning surface 83, the light emitting surface 84, and the connecting surface 85, and the side reflection surfaces 86 are connected to the five surfaces. The second returning surface 83, the connecting surface 85 and the two side reflecting surfaces 86 can be tightly attached to corresponding surfaces in the accommodating cavity 305 of the supporting member 30, so that the prism 80 can be fixedly installed on the supporting member 30 without any fastening structure.

The support member 30 may also be provided with lightening holes 308 to lighten the weight of the support member 30.

Referring to fig. 1 to 10, an embodiment of the present invention further provides a camera including a lens, an image sensor and an optical module in any of the foregoing embodiments, wherein the optical module is disposed on a light incident side of the lens, the image sensor is disposed on a light emergent side of the lens, the image sensor is opposite to an opening of the light emergent surface 84 of the support 30, and light emitted from the light emergent surface 84 of the optical module (i.e., light reflected by the first refraction surface 82 and reflected by the second refraction surface 83) is imaged on the image sensor through the lens.

The camera of this embodiment is periscopic camera, goes into the light from the direction that is the contained angle with the optical axis of camera lens, compares in the current direction of going into the light from being parallel with the optical axis, can be under the size of the optical axis direction of the camera lens that increases, does not increase electronic equipment's thickness, can promote the formation of image effect.

The lens is provided with at least one lens, and may further be provided with structures such as a diaphragm, and the specific structure of the lens is not limited in this embodiment.

The image sensor may be a CCD (Charge-coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The image sensor is used for receiving the light emitted from the light-emitting surface 84 of the prism 80 in the optical module, and the light is transmitted to the image sensor through the lens to form an image.

The camera of the embodiment adopts the optical module provided by the embodiment of the invention, the prism 80 is arranged in the optical module, the refraction and reflection of light on the first refraction and reflection surface 82 are utilized to meet a specific relation, an image meeting the specific relation is further formed, the image formed by the refracted light is calibrated, the calibration of the image formed by the reflected light can be realized, the calibration can be carried out when the optical module is assembled, the calibration can also be carried out without disassembly after the assembly is finished, the calibration is carried out without a later algorithm, the distortion caused by the assembly can be eliminated, the imaging effect is ensured, the imaging quality is improved, meanwhile, the anti-shake mechanism is arranged at the prism 80, an additional anti-shake mechanism is not required, and the size is reduced.

The embodiment of the invention also provides electronic equipment which comprises the camera in the embodiment. The electronic device can be a smart phone, a tablet computer, a personal digital assistant, a wearable device, a virtual reality device, an augmented reality device, a face recognition device, and the like.

According to the electronic equipment, the optical module provided by the embodiment of the invention is used in the camera, the prism 80 is arranged in the optical module, the refraction and reflection of light rays on the first refraction and reflection surface 82 are utilized to meet a specific relation, an image meeting the specific relation is further formed, the image formed by the reflected light rays is calibrated, the calibration of the image formed by the reflected light rays can be realized, the calibration can be carried out when the optical module is assembled, the calibration can also be carried out after the optical module is assembled without disassembly, a later algorithm is not needed for calibration, the distortion caused by assembly can be eliminated, the imaging effect is ensured, the imaging quality is improved, meanwhile, the anti-shake mechanism is arranged at the prism 80, an additional anti-shake mechanism is not needed, and the size is reduced.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an optical module, its characterized in that, includes the light path component of turning back, the light path component of turning back includes that first surface and the second of turning back is turned back, first surface of turning back with the second is turned back the relative setting, and light is incited from the first direction and is in first surface of turning back produces reflection and refraction, and the light warp of reflection is turned back the surface reflection and is emitted from the second direction to the second, and the light of refraction is followed first surface of turning back jets out, wherein, the first direction with the second direction has the contained angle, follows the light that first surface of turning back refraction jets out is used for the calibration follow the light that the second direction jetted out.

2. The optical module of claim 1 wherein the image formed by the light refracted from the first refracting surface is equivalent to the image formed by the light refracted from the second direction, and wherein the image formed by the light refracted from the first refracting surface is aligned by capturing and aligning the image formed by the light refracted from the first refracting surface.

3. The optical module of claim 1 wherein the optical path turn-back element is a prism, the prism further comprising an entrance surface opposite the first turn-back surface and an exit surface opposite the second turn-back surface, the entrance surface and the exit surface having an included angle;

or,

the light path folding-back component is a plurality of lenses.

4. The optical module of claim 3, wherein the prism is a pentaprism, and the light incident surface and the light emitting surface are perpendicular.

5. The optical module of claim 1 wherein the first refractive surface is formed with a transflective film for adjusting the transmittance and reflectance of light rays to 1: 1.

6. the optical module of claim 1 wherein the first refractive surface is disposed in a path of the light beam, and the shielding member is configured to shield the light beam refracted by the first refractive surface after the light beam is collimated.

7. The optical module of claim 6 wherein the blocking member moves between a first position in which the blocking member does not block the light refracted by the first return surface and a second position in which the blocking member blocks the light refracted by the first return surface;

or,

the shielding piece is switched between a transparent state and an opaque state, the shielding piece is in the transparent state during light calibration, and the shielding piece is switched to the opaque state after the light calibration is completed.

8. The optical module of any of claims 1-7 further comprising a mount, a support member, an actuating member, an actuator, and a slider, wherein the circuit folding element is disposed on the support member, the actuating member is disposed on the mount, the actuator is disposed on the support member, the slider is translatable and rotatable relative to the mount, and the actuating member actuates the actuator to translate and rotate the support member relative to the mount.

9. The optical module as claimed in claim 8, wherein the driving member includes a flexible circuit board and a plurality of coils, the driving member is made of a magnetic material and has a plurality of coils, the plurality of coils are disposed on the flexible circuit board and correspond to a plurality of sides of the supporting member one by one, the driving member is disposed on the supporting member and opposite to the coils, the driving member and the coils are spaced apart from each other, and the plurality of coils are selectively energized to generate magnetic force with the corresponding driving member to drive the supporting member to move or rotate.

10. The optical module of claim 8, wherein the sliding member includes a main body and a plurality of balls, a first rail and a second rail are respectively disposed on two opposite surfaces of the main body, the plurality of balls are respectively disposed on the first rail and the second rail, the first rail is connected to the mounting base through the balls, the second rail is connected to the supporting member through the balls, and the first rail and the second rail extend in a direction perpendicular to each other.

11. The optical module of claim 8 further comprising a first magnetic member and a second magnetic member, wherein the first magnetic member is disposed on the sliding member, the second magnetic member is disposed on the supporting member, and the first magnetic member and the second magnetic member are correspondingly positioned, and the first magnetic member and the second magnetic member attract each other to keep the supporting member and the sliding member connected.

12. A camera, comprising a lens, an image sensor and the optical module according to any one of claims 1 to 11, wherein the optical module is disposed on a light incident side of the lens, the image sensor is disposed on a light emergent side of the lens, and light reflected by the first refraction and return surface and emitted by the second refraction and return surface is imaged on the image sensor through the lens.

13. An electronic device characterized by comprising the camera according to claim 12.