CN113075832A

CN113075832A - Lens device

Info

Publication number: CN113075832A
Application number: CN201911309810.4A
Authority: CN
Inventors: 林国泉
Original assignee: Sintai Optical Shenzhen Co Ltd; Asia Optical Co Inc
Current assignee: Sintai Optical Shenzhen Co Ltd; Asia Optical Co Inc
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2021-07-06

Abstract

The present invention relates to a lens apparatus including: a lens module having an optical axis along a first direction; an image sensing assembly; the first reflection assembly is used for receiving and reflecting light rays passing through the lens module and is movably arranged between the lens module and the image sensing assembly along the first direction or a second direction perpendicular to the first direction; and the second reflection assembly is used for reflecting the light rays from the first reflection assembly and can be arranged between the lens module and the image sensing assembly in a manner of moving in the same direction or in the opposite direction with the first reflection assembly.

Description

Lens device

Technical Field

The present invention relates to a lens apparatus.

Background

A periscopic lens apparatus in the related art generally includes: the prism module is used for reflecting incident light rays to a first direction; the lens module is used for receiving the light rays reflected by the prism; and the image sensor is used for receiving the light rays from the lens module.

The disadvantage of this lens device is that a longer focal length is required to achieve a higher magnification optical zoom, which makes the size of the lens module longer, and is not favorable for the miniaturization of the present lens device.

Disclosure of Invention

The present invention is directed to a lens device, which is advantageous for miniaturization of the lens device.

The technical scheme adopted by the invention for solving the technical problems is as follows: a lens device is constructed including:

a lens module having an optical axis along a first direction;

an image sensing assembly;

the first reflection assembly is used for receiving and reflecting the light rays passing through the lens module and is movably arranged between the lens module and the image sensing assembly along a second direction perpendicular to the first direction;

and the second reflection assembly is used for reflecting the light rays from the first reflection assembly and can be arranged between the lens module and the image sensing assembly in a manner of moving in the same direction or in the opposite direction with the first reflection assembly.

According to the lens device of the present invention, the first reflective assembly has a first reflective surface, the second reflective assembly has a second reflective surface, the first reflective surface and the second reflective surface are perpendicular to each other, and the first reflective assembly and the second reflective assembly are disposed opposite to each other;

the lens apparatus further includes: and the third reflection assembly is used for reflecting the light rays from the second reflection assembly to the image sensing assembly and is arranged between the lens module and the image sensing assembly.

According to the lens device, the first reflecting surface and the second reflecting surface are oppositely arranged in the second direction, and the third reflecting assembly comprises a third reflecting surface used for reflecting light rays from the second reflecting surface to the image sensing assembly; the third reflecting surface and the second reflecting surface are oppositely arranged in the first direction; the light from the object side sequentially passes through the lens module, the first reflecting surface, the second reflecting surface and the third reflecting surface to the image sensing assembly.

According to the lens device of the present invention, the lens device further includes:

a base;

a first reflective component carrier for carrying the first reflective component, movably disposed on the base;

a second reflective component carrier for carrying the second reflective component, movably disposed on the base;

the base is provided with a first reflection assembly carrier sliding groove and a second reflection assembly carrier sliding groove, the bottom of the first reflection assembly carrier is provided with a first moving piece matched with the first reflection assembly carrier sliding groove, and the bottom of the second reflection assembly carrier is provided with a second moving piece matched with the second reflection assembly carrier sliding groove.

According to the lens device, the lens device further comprises an outer cover, the outer cover is connected to the base, a hole for light to enter the lens module is formed in the outer cover, a first reflection assembly carrier sliding groove and a second reflection assembly carrier sliding groove are also formed in the outer cover, a first moving part matched with the first reflection assembly carrier sliding groove of the outer cover is arranged at the top of the first reflection assembly carrier, and a second moving part matched with the second reflection assembly carrier sliding groove of the outer cover is arranged at the top of the second reflection assembly carrier;

the lens device also comprises a first driving component for driving the first reflecting component carrier to move and a second driving component for driving the second reflecting component carrier to move; the first driving assembly includes a magnet disposed on one of the outer cover and the first reflecting assembly carrier, and a coil disposed on the other, and the second driving assembly includes a magnet disposed on one of the outer cover and the second reflecting assembly carrier, and a coil disposed on the other.

According to the lens apparatus of the present invention, the first moving member includes a first receiving groove provided on the first reflection component carrier, and a first ball provided in the first receiving groove, the first ball being rollable in the first receiving groove and the first reflection component carrier sliding groove; the second moving part comprises a second accommodating groove arranged on the second reflection assembly carrier and a second ball arranged in the second accommodating groove, and the second ball can roll in the second accommodating groove and the second reflection assembly carrier sliding groove.

The present invention also provides a lens apparatus, including:

a lens module having an optical axis along a first direction;

an image sensing assembly;

the first reflection assembly is used for receiving and reflecting the light rays passing through the lens module and is movably arranged between the lens module and the image sensing assembly along the first direction;

the second reflection assembly is used for reflecting the light rays from the first reflection assembly and can be arranged between the lens module and the image sensing assembly in a manner of moving in the same direction or in the opposite direction with the first reflection assembly;

and the third reflection assembly is used for reflecting the light rays from the lens module to the first reflection assembly and is arranged between the lens module and the image sensing assembly.

According to the lens device of the present invention, the first reflection assembly has a first reflection surface, the second reflection assembly has a second reflection surface, the first reflection surface and the second reflection surface are perpendicular to each other, and the first reflection assembly and the second reflection assembly are disposed opposite to each other.

According to the lens device of the present invention, the first reflective surface and the second reflective surface are disposed opposite to each other in the first direction, and the third reflective assembly includes a third reflective surface for reflecting the light from the lens module to the first reflective surface and a fourth reflective surface for reflecting the light from the second reflective surface to the image sensing assembly; the third reflecting surface and the first reflecting surface are oppositely arranged in the second direction, and the fourth reflecting surface and the second reflecting surface are oppositely arranged in the second direction; the light from the object side sequentially passes through the lens module, the third reflecting surface, the first reflecting surface, the second reflecting surface and the fourth reflecting surface to the image sensing assembly.

a base;

The lens device has the following beneficial effects: the lens device is beneficial to miniaturization, and adopts different layouts to realize automatic focusing and anti-vibration compensation.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic structural view of a part of components of a lens apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic optical path diagram of a lens apparatus according to a first embodiment of the present invention;

fig. 3 is a schematic diagram of optical paths when the first and second reflecting members of the lens apparatus reversely move in the second direction according to the first embodiment of the present invention;

fig. 4 is a schematic diagram of optical paths when the first reflecting component and the second reflecting component of the lens apparatus move in the same direction in the second direction according to the first embodiment of the present invention;

fig. 5 is another structural schematic view of a part of components of the lens apparatus according to the first embodiment of the present invention;

FIG. 6 is a top view of a portion of the components of the lens assembly of FIG. 2;

FIG. 7 is an exploded view of a portion of the components of the lens assembly of FIG. 2;

FIG. 8 is another exploded view of a portion of the components of the lens assembly of FIG. 2;

fig. 9 is a schematic optical path diagram of a lens apparatus according to a second embodiment of the present invention;

fig. 10 is a schematic diagram of optical paths when the first and second reflecting members of the lens apparatus reversely move in the first direction according to the second embodiment of the present invention;

fig. 11 is a schematic diagram of optical paths when the first reflecting component and the second reflecting component of the lens device move in the same direction in the first direction according to the second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.

Fig. 1 is a schematic structural diagram of a part of components of a lens apparatus 200 according to a first embodiment of the present invention. As shown in fig. 1, according to a first embodiment of the present invention, the lens apparatus 200 includes: a lens module 201 having an optical axis along a first direction X; a first reflection assembly 202 for receiving and reflecting the light passing through the lens module 201; a second reflection assembly 203 for reflecting the light from the first reflection assembly 202, disposed opposite to the first reflection assembly 202 along the second direction Y; an image sensing device 204; and a third reflecting element 205, wherein the third reflecting element 205 reflects the light from the second reflecting element 203 to the image sensing element 204. The first reflective element 202, the second reflective element 203, and the third reflective element 205 are disposed between the lens module 201 and the image sensor 204.

The first reflective element 202 has a first reflective surface 2021, and the second reflective element 203 has a second reflective surface 2031. The first reflective surface 2021 forms an angle of 45 degrees with the first direction X, and the first reflective surface 2021 and the second reflective surface 2031 are perpendicular to each other and are disposed opposite to each other in the second direction Y. The third reflective element 205 is disposed opposite to the second reflective element 203 in the first direction X, the third reflective element 205 has a third reflective surface 2051, the third reflective surface 2051 is disposed opposite to the second reflective surface 2031 in the first direction X, and preferably, the third reflective surface 2051 is parallel to the second reflective surface 2031, but the invention is not limited thereto. It is understood by those skilled in the art that the third reflective element 205 is not required, the image sensor 204 may be disposed opposite to the second reflective element 203, and the light reflected by the second reflective element 203 may directly reach the image sensor 204 without passing through the third reflective element 205. In the present invention, "disposed opposite" does not mean that the two are parallel and opposite to each other, but means that light passing through one of them can reach the other.

In the present invention, the first, second and

third reflection assemblies

202, 203, 205 may be reflection prisms, mirrors, or the like.

Fig. 2 is a schematic optical path diagram of a lens apparatus 200 according to a first embodiment of the present invention. As shown in fig. 2, the light enters the lens module 201 along the first direction X, then exits from the lens module 201, reaches the first reflecting surface 2021, is reflected by the first reflecting surface 2021, reaches the second reflecting surface 2031, is reflected by the second reflecting surface 2031, reaches the third reflecting surface 2051, and finally reaches the image sensor assembly 204 after being reflected by the third reflecting surface 2051, thereby forming an image.

Fig. 3 is a schematic diagram of optical paths of the first reflecting component 202 and the second reflecting component 203 of the lens apparatus 200 moving in the second direction Y in opposite directions according to the first embodiment of the present invention. As shown in fig. 3, the solid lines indicate the initial positions of the first reflective element 202 and the second reflective element 203, and the dashed lines indicate the positions of the first reflective element 202 and the second reflective element 203 after movement. The first reflective element 202 moves a distance L1 in the second direction Y, and the second reflective element 203 moves a distance L2 in the opposite direction in the second direction Y, so that the two elements are far apart from each other, and at this time, the optical path between the lens module 201 and the image sensor 204 is increased by Δ S — L1+ L2, thereby achieving auto-focusing of the lens device 200. Wherein L1 and L2 are absolute values.

Similarly, the first reflective element 202 moves a distance L1 in the second direction Y, and the second reflective element 203 moves a distance L2 in the opposite direction in the second direction Y, so that the two are close to each other, and at this time, the optical path between the lens module 201 and the image sensor 204 is decreased by Δ S — L1+ L2, thereby achieving auto-focusing of the lens device 200.

It can be understood by those skilled in the art that when the values of L1 and L2 are equal, the light reflected by the second reflective element 203 still travels along a path coincident with the path before the movement, and the imaging position of the light on the image sensor 204 does not change, so that the lens device 200 only achieves auto-focusing. When the values of L1 and L2 are not equal, the light beam reflected by the second reflection element 203 deviates from the path before the movement, and the imaging position of the light beam on the image sensor 204 deviates from the distance L1-L2.

Specifically, in the illustrated embodiment, when the first reflecting assembly 202 and the second reflecting assembly 203 move in opposite directions in the second direction Y so that the first reflecting assembly 202 and the second reflecting assembly 203 move away from each other, and the distance L1 that the first reflecting assembly 202 moves in the second direction Y is greater than the distance L2 that the second reflecting assembly 203 moves in opposite directions in the second direction Y, the imaging position of the light on the image sensing assembly 204 deviates from the first direction X by S | L1-L2 |; when the distance L1 that the first reflective element 202 moves in the second direction Y is less than the distance L2 that the second reflective element 203 moves in the opposite direction in the second direction Y, the imaging position of the light on the image sensor 204 deviates from the first direction X by L1-L2 |. When the first reflecting assembly 202 and the second reflecting assembly 203 move in opposite directions in the second direction Y so that they approach each other, when the distance L1 that the first reflecting assembly 202 moves in the second direction Y is greater than the distance L2 that the second reflecting assembly 203 moves in the opposite direction in the second direction Y, the imaging position of the light on the image sensing assembly 204 deviates from the first direction X in the negative direction by S | L1-L2 |; when the distance L1 that the first reflection assembly 202 moves in the second direction Y is less than the distance L2 that the second reflection assembly 203 moves in the reverse direction in the second direction Y, the light ray S | L1-L2| deviates from S | L1-L2| in the forward direction of the first direction X.

In this way, the lens apparatus 200 achieves the anti-vibration compensation while achieving the auto-focusing.

Fig. 4 is a schematic diagram of optical paths when the first reflecting component 202 and the second reflecting component 203 of the lens device 200 move in the same direction in the second direction according to the first embodiment of the present invention. As shown in fig. 4, the solid lines indicate the initial positions of the first reflective element 202 and the second reflective element 203, and the dashed lines indicate the positions of the first reflective element 202 and the second reflective element 203 after movement. The first reflective element 202 moves a distance L1 in the second direction Y, and the second reflective element 203 moves a distance L2 in the same direction in the second direction Y, at this time, the imaging position of the light on the image sensor 204 deviates, and the deviation distance before the movement is S-L1 + L2, thereby achieving the anti-vibration compensation. Wherein L1 and L2 are absolute values.

In the embodiment shown in fig. 4, the first reflective element 202 and the second reflective element 203 both move forward along the second direction Y, and the deviation direction of the imaging position of the light on the image sensing element 204 is the forward direction of the first direction X; when the first reflective element 202 and the second reflective element 203 both move in the negative direction Y, the deviation direction of the imaging position of the light on the image sensor 204 is the negative direction of the first direction X.

It can be understood by those skilled in the art that when the values of L1 and L2 are equal, the imaging position of the light on the image sensor 204 changes, and the deviation distance is S1 + L2-2L 1-2L 2. At this time, the optical path between the lens module 201 and the image sensor 204 remains unchanged. When the values of L1 and L2 are not equal, the imaging position of the light on the image sensor 204 changes, and the deviation distance is S ═ L1+ L2, and the optical path length between the lens module 201 and the image sensor 204 also changes, and the changed distance is Δ S ═ L1-L2 |.

Specifically, in the case where the first and

second reflection units

202 and 203 are moved forward by the distances L1 and L2 along the second direction Y, respectively, when L1 > L2, the optical path length increases by Δ S ═ L1-L2 |; when L1 < L2, the optical path length decreases by Δ S | L1-L2 |. In the case where the first reflecting assembly 202 and the second reflecting assembly 203 are moved negatively by the distances L1 and L2 along the second direction Y, respectively, when L1 > L2, the optical path length is decreased by Δ S ═ L1-L2 |; when L1 < L2, the optical path length increases by Δ S | L1-L2 |.

In this way, the lens apparatus 200 achieves automatic focusing while achieving vibration compensation.

Fig. 5 is another structural schematic diagram of a part of components of the lens apparatus 200 according to the first embodiment of the present invention; FIG. 6 is a top view of a portion of the components of the lens device 200 of FIG. 3; FIG. 7 is an exploded view of a portion of the components of the lens device 200 of FIG. 3; fig. 8 is another exploded view of some of the components of the lens device 200 of fig. 3. As shown in fig. 5 to 8, the lens device 200 further includes: the base 206, the lens module 201 and the third reflection assembly 205 are fixed on the base 206; a first reflective assembly carrier 207 for carrying the first reflective assembly 202, movably arranged on the base 206 along the second direction Y; a second reflective component carrier 208 for carrying a second reflective component 203, movably arranged on the base 206 along the second direction Y; and an outer cover 209 coupled to the base 206 to form a receiving space in which the above-mentioned other components are received; on the outer cover 209, a hole 2091 through which light enters the lens module 201 is provided.

In order to realize the movement of the first and

second reflection members

202 and 203 in the second direction Y, a first reflection member carrier sliding groove 211 and a second reflection member carrier sliding groove 212 extending along the second direction Y are provided on the base 206. In order to maintain stability during movement, the first reflective member carrier sliding groove 211 and the second reflective member carrier sliding groove 212 may be provided in plural numbers, and they may share a long sliding groove at the adjacent position. At the bottom of the first reflection set carrier 207, a first moving member 213 engaged with the first reflection set carrier sliding groove 211 is provided, and at the bottom of the second reflection set carrier 208, a second moving member 214 engaged with the second reflection set carrier sliding groove 212 is provided.

The first moving element 213 may include a first receiving groove disposed at the bottom of the first reflective component carrier 207, and a first ball disposed in the first receiving groove, and the first ball may roll in the first receiving groove and the first reflective component carrier sliding groove 211, so as to drive the first reflective component carrier 207 to move along the second direction Y. The second moving element 214 may include a second receiving groove disposed at the bottom of the second reflective component carrier 208, and a second ball disposed in the second receiving groove, and the second ball may roll in the second receiving groove and the second reflective component carrier sliding groove 212, so as to drive the second reflective component carrier 208 to move along the second direction Y. However, the present invention is not limited thereto, and the first moving member 213 and the second moving member 214 may have other structures, such as a slider.

In order to further enhance the stability in movement, in the outer cover 209, a first reflection assembly carrier sliding groove 211 and a second reflection assembly carrier sliding groove 212 extending in the second direction Y are also provided. On the top of the first reflection element carrier 207, a first movement member 213 to be fitted into the first reflection element carrier sliding groove 211 of the outer cover 209 is provided, and on the top of the second reflection element carrier 208, a second movement member 214 to be fitted into the second reflection element carrier sliding groove 212 of the outer cover 209 is provided. The structures of the first moving member 213 and the second moving member 214 are similar to those described above, and thus, the description thereof is omitted.

A first driving element 215 is disposed between the outer cover 209 and the first reflective element carrier 207, and the first driving element 215 includes a magnet disposed on one of the outer cover 209 and the first reflective element carrier 207 and a coil disposed on the other, and when the first driving element is energized, the first reflective element carrier 207 can be driven to move along the second direction Y under the action of electromagnetic force. A second driving element 216 is disposed between the outer cover 209 and the second reflective element carrier 208, wherein the second driving element 216 includes a magnet disposed on one of the outer cover 209 and the second reflective element carrier 208 and a coil disposed on the other, and when energized, the second reflective element carrier 208 is driven to move along the second direction Y under the action of electromagnetic force.

Fig. 9 is a schematic optical path diagram of a lens apparatus 300 according to a second embodiment of the present invention. As shown in fig. 9, the lens apparatus 300 includes: a lens module 301 having an optical axis along a first direction X; a first reflective component 302; a second reflecting member 303 for reflecting the light from the first reflecting member 302, disposed opposite to the first reflecting member 302 along the first direction X; an image sensing device 304; and a third reflecting assembly 305, wherein the third reflecting assembly 305 reflects the light from the lens module 301 to the first reflecting assembly 302 and reflects the light from the second reflecting assembly 303 to the image sensing assembly 304.

The first reflective assembly 302 has a first reflective surface 3021, the second reflective assembly 303 has a second reflective surface 3031, and the first reflective surface 3021 and the second reflective surface 3031 are oppositely arranged in the first direction X. The first reflecting surface 3021 forms an angle of 45 degrees with the first direction X, and the first reflecting surface 3021 and the second reflecting surface 3031 are perpendicular to each other and are disposed opposite to each other in the first direction X. The third reflection assembly 305 has a third reflection surface 3051 and a fourth reflection surface 3052, the third reflection surface 3051 is disposed opposite to the lens module 301 in the first direction X, the first reflection group surface 3021 is disposed opposite to the second reflection group surface Y in the second direction Y, and the fourth reflection surface 3052 is disposed opposite to the second reflection surface 3031 in the second direction Y.

Preferably, the third reflecting surface 2051 is parallel to the first reflecting surface 3021, and the fourth reflecting surface 3052 is parallel to the second reflecting surface 3031. It is understood by those skilled in the art that the fourth reflecting surface 3052 is not necessary, the image sensor assembly 304 may be disposed opposite to the second reflecting assembly 303, and the light reflected by the second reflecting assembly 303 may directly reach the image sensor assembly 304 without passing through the fourth reflecting surface 3052. In the present invention, "disposed opposite" does not mean that the two are parallel and opposite to each other, but means that light passing through one of them can reach the other.

In the present invention, the first, second and

third reflection assemblies

302, 303 and 305 may be a reflection prism or a reflection mirror.

The light enters the lens module 301 along the first direction X, then exits from the lens module 301, reaches the third reflecting surface 3051, is reflected by the third reflecting surface 3051, reaches the first reflecting surface 3021, is reflected by the first reflecting surface 3021, reaches the second reflecting surface 3031, is reflected by the second reflecting surface 3031, reaches the fourth reflecting surface 3052, and is finally reflected by the fourth reflecting surface 3052 to reach the image sensor assembly 304, so as to form an image.

Fig. 10 is a schematic diagram of optical paths when the first reflecting member 302 and the second reflecting member 303 of the lens apparatus 300 reversely move in the first direction according to the second embodiment of the present invention. As shown in fig. 10, the solid lines indicate the initial positions of the first reflecting member 302 and the second reflecting member 303, and the dotted lines indicate the positions of the first reflecting member 302 and the second reflecting member 303 after moving. The first reflective element 302 moves a distance L1 in the first direction X, and the second reflective element 303 moves a distance L2 in the opposite direction in the first direction X, so that the two elements are far apart from each other, and at this time, the optical path between the lens module 301 and the image sensor 304 is increased by Δ S — L1+ L2, thereby achieving auto-focusing of the lens device 300. Wherein L1 and L2 are absolute values.

Similarly, the first reflective element 302 moves a distance L1 in the first direction X, and the second reflective element 303 moves a distance L2 in a reverse direction in the first direction X, so that the two are close to each other, and at this time, the optical path length between the lens module 301 and the image sensor 304 is decreased by Δ S — L1+ L2, thereby achieving auto-focusing of the lens apparatus 300.

It can be understood by those skilled in the art that when the values of L1 and L2 are equal, the light reflected by the second reflecting element 303 still travels along a path coincident with the path before the movement, and the imaging position of the light on the image sensing element 304 does not change, so that the lens device 300 only achieves auto-focusing. When the values of L1 and L2 are not equal, the light beam reflected by the second reflection element 303 deviates from the path before the movement, and the imaging position of the light beam on the image sensor 304 deviates from the distance L1-L2.

Specifically, in the illustrated embodiment, when the first reflecting assembly 302 and the second reflecting assembly 303 move in opposite directions in the first direction X so that the first reflecting assembly 302 and the second reflecting assembly 303 are away from each other, and when the distance L1 that the first reflecting assembly 302 moves in the first direction X is greater than the distance L2 that the second reflecting assembly 303 moves in opposite directions in the first direction X, the imaging position of the light on the image sensing assembly 304 deviates from the second direction Y by S | L1-L2 |; when the distance L1 that the first reflection element 302 moves in the first direction X is smaller than the distance L2 that the second reflection element 303 moves in the opposite direction in the first direction X, the imaging position of the light on the image sensor 204 deviates from the negative direction of the second direction Y by L1-L2. When the first reflecting assembly 302 and the second reflecting assembly 303 move in opposite directions in the first direction X so that they approach each other, when the distance L1 that the first reflecting assembly 302 moves in the first direction X is greater than the distance L2 that the second reflecting assembly 303 moves in the opposite direction in the first direction X, the imaging position of the light on the image sensing assembly 204 deviates from the second direction Y in the negative direction of the second direction Y by S ═ L1-L2 |; when the distance L1 that the first reflection element 302 moves in the first direction X is less than the distance L2 that the second reflection element 303 moves in the reverse direction in the first direction X, the light ray S | L1-L2| deviates from S | L1-L2| in the forward direction of the second direction Y.

In this way, the lens device 300 achieves automatic focusing and also achieves anti-vibration compensation.

Fig. 11 is a schematic diagram of optical paths when the first reflecting component 302 and the second reflecting component 303 of the lens device 300 move in the same direction in the first direction X according to the second embodiment of the present invention. As shown in fig. 11, the solid lines show the initial positions of the first reflecting member 302 and the second reflecting member 303, and the dotted lines show the positions of the first reflecting member 302 and the second reflecting member 303 after moving. The first reflecting assembly 302 moves a distance L1 in the first direction X, and the second reflecting assembly 303 moves a distance L2 in the same direction in the first direction X, at this time, the imaging position of the light on the image sensing assembly 304 deviates, and the deviation distance before the movement is S-L1 + L2, thereby realizing the anti-vibration compensation. Wherein L1 and L2 are absolute values.

In the embodiment shown in fig. 11, the first reflective element 302 and the second reflective element 303 both move in the negative direction X, and the deviation direction of the imaging position of the light on the image sensing element 304 is the positive direction of the second direction Y; when the first reflective element 302 and the second reflective element 303 both move in the positive direction along the first direction X, the deviation direction of the imaging position of the light on the image sensing element 304 is in the negative direction of the second direction Y.

It can be understood by those skilled in the art that when the values of L1 and L2 are equal, the imaging position of the light on the image sensor 304 changes, and the deviation distance is S1 + L2-2L 1-2L 2. At this time, the optical path between the lens module 301 and the image sensor 304 remains unchanged. When the values of L1 and L2 are not equal, the imaging position of the light on the image sensor 304 changes, and the deviation distance is S ═ L1+ L2, and the optical path length between the lens module 301 and the image sensor 304 also changes, and the changed distance is Δ S ═ L1-L2 |.

Specifically, when the first and

second reflection units

302 and 303 move forward by distances L1 and L2 along the first direction X, respectively, the optical path length increases by Δ S ═ L1-L2|, when L1 > L2; when L1 < L2, the optical path length decreases by Δ S | L1-L2 |. In the case where the first and

second reflection units

302 and 303 are moved negatively by distances L1 and L2 along the first direction X, respectively, when L1 > L2, the optical path length is decreased by Δ S ═ L1-L2 |; when L1 < L2, the optical path length increases by Δ S | L1-L2 |.

In this way, the lens apparatus 300 achieves the anti-vibration compensation and also achieves the auto-focusing.

In the second embodiment of the present invention, the lens apparatus 300 further includes: a base on which the lens module 301 and the third reflective component 305 are fixed; a first reflective assembly carrier for carrying the first reflective assembly 302, movably arranged on the base along the first direction X; a second reflective component carrier 308 for carrying a second reflective component 303, movably arranged on the base along the first direction X; and an outer cover coupled to the base to form an accommodating space in which the other components are accommodated; on the outer cover, a hole for light to enter the lens module 301 is provided. In this embodiment, except that the moving directions of the first reflective element carrier and the second reflective element carrier are different from the first embodiment, the other embodiments are similar to the first embodiment, and are not described herein again.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lens apparatus, comprising:

a lens module having an optical axis along a first direction;

an image sensing assembly;

2. The lens device as claimed in claim 1, wherein the first reflective member has a first reflective surface, the second reflective member has a second reflective surface, the first reflective surface and the second reflective surface are perpendicular to each other, and the first reflective member and the second reflective member are disposed opposite to each other;

3. The lens device as claimed in claim 2, wherein the first and second reflective surfaces are disposed opposite to each other in the second direction, and the third reflective element includes a third reflective surface for reflecting light from the second reflective surface to the image sensor element; the third reflecting surface and the second reflecting surface are oppositely arranged in the first direction; the light from the object side sequentially passes through the lens module, the first reflecting surface, the second reflecting surface and the third reflecting surface to the image sensing assembly.

4. The lens device according to claim 1, characterized in that the lens device further comprises:

a base;

5. The lens apparatus as claimed in claim 4, further comprising an outer cover coupled to the base, the outer cover being provided with a hole through which light enters the lens module, a first reflection assembly carrier sliding groove and a second reflection assembly carrier sliding groove being provided in the outer cover, a first moving member being provided on a top of the first reflection assembly carrier to be engaged with the first reflection assembly carrier sliding groove of the outer cover, and a second moving member being provided on a top of the second reflection assembly carrier to be engaged with the second reflection assembly carrier sliding groove of the outer cover;

6. The lens device according to claim 5, wherein the first moving member includes a first receiving groove provided on the first reflection component carrier, and a first ball provided in the first receiving groove, the first ball being rollable in the first receiving groove and a first reflection component carrier sliding groove; the second moving part comprises a second accommodating groove arranged on the second reflection assembly carrier and a second ball arranged in the second accommodating groove, and the second ball can roll in the second accommodating groove and the second reflection assembly carrier sliding groove.

7. A lens apparatus, comprising:

a lens module having an optical axis along a first direction;

an image sensing assembly;

8. The lens device as claimed in claim 7, wherein the first reflective element has a first reflective surface, the second reflective element has a second reflective surface, the first reflective surface and the second reflective surface are perpendicular to each other, and the first reflective element and the second reflective element are disposed opposite to each other.

9. The lens device as claimed in claim 8, wherein the first and second reflective surfaces are disposed opposite to each other in the first direction, and the third reflective assembly includes a third reflective surface for reflecting light from the lens module to the first reflective surface and a fourth reflective surface for reflecting light from the second reflective surface to the image sensing assembly; the third reflecting surface and the first reflecting surface are oppositely arranged in the second direction, and the fourth reflecting surface and the second reflecting surface are oppositely arranged in the second direction; the light from the object side sequentially passes through the lens module, the third reflecting surface, the first reflecting surface, the second reflecting surface and the fourth reflecting surface to the image sensing assembly.

10. The lens device according to claim 7, characterized in that the lens device further comprises:

a base;

11. The lens apparatus as claimed in claim 10, further comprising an outer cover coupled to the base, the outer cover being provided with a hole through which light enters the lens module, a first reflection assembly carrier sliding groove and a second reflection assembly carrier sliding groove being also provided in the outer cover, a first moving member being provided on a top of the first reflection assembly carrier to be engaged with the first reflection assembly carrier sliding groove of the outer cover, and a second moving member being provided on a top of the second reflection assembly carrier to be engaged with the second reflection assembly carrier sliding groove of the outer cover;

12. The lens device according to claim 11, wherein the first moving member includes a first receiving groove provided on the first reflection component carrier, and a first ball provided in the first receiving groove, the first ball being rollable in the first receiving groove and a first reflection component carrier sliding groove; the second moving part comprises a second accommodating groove arranged on the second reflection assembly carrier and a second ball arranged in the second accommodating groove, and the second ball can roll in the second accommodating groove and the second reflection assembly carrier sliding groove.