CN218547211U

CN218547211U - Image pickup apparatus, lens driving apparatus, and lens holder

Info

Publication number: CN218547211U
Application number: CN202221593880.4U
Authority: CN
Inventors: 李寿春
Original assignee: Hunchun Zhaojing Electronic Technology Co ltd
Current assignee: Hunchun Zhaojing Electronic Technology Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-02-28
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a camera device, which comprises a base, a shell buckled on the base, a lens arranged in the shell, a lens bracket and a focusing unit for realizing the focusing function; the middle part of the lens bracket is provided with a through hole which can contain a lens. And a groove surrounding the through hole is formed on one surface of the lens support facing the base. The utility model discloses a different camera lens of camera device accessible configuration lens holder come the different camera lenses of adaptation, has reduced development cost greatly.

Description

Image pickup apparatus, lens driving apparatus, and lens holder

Technical Field

The present invention relates to a camera device, and more particularly, to a camera device, a lens driving device, and a lens holder.

Background

The imaging device is widely used in various electronic apparatuses, and particularly, most of portable electronic apparatuses are equipped with the imaging device, and the size and weight of the imaging device to be equipped are small. Because different electronic devices require different parameters such as pixels of the configured image capturing devices, and the like, the corresponding lens parameters are different, and the lens driving devices of different lenses are often the same in structure. Therefore, it is necessary to provide an image pickup apparatus adaptable to different lenses to reduce development costs.

Disclosure of Invention

An object of the utility model is to provide a but camera device and camera lens drive arrangement of the different camera lenses of adaptation still provides a lens holder.

A camera device comprises a base, a shell buckled on the base, a lens arranged in the shell, a lens bracket and a focusing unit for realizing the focusing function; the middle part of the lens bracket is provided with a through hole which can contain a lens. A groove surrounding the through hole is formed in one surface, facing the base, of the lens support.

As an embodiment, a plurality of columns protruding towards the base are further formed on the outer side of the groove.

In one embodiment, the annular wall formed between the groove and the through hole protrudes from the surface of the lens holder.

In one embodiment, the thickness of the annular wall 34 formed between the groove and the through hole is greater than or equal to 0.15mm.

A lens driving device comprises a base, a shell buckled on the base, a lens bracket for fixing a lens and a focusing unit for driving the lens bracket to move relative to the base and the shell; the middle part of the lens bracket is provided with a through hole which can contain the lens. A groove surrounding the through hole is formed in one surface, facing the base, of the lens support.

In one embodiment, a plurality of columns protruding towards the base are further formed on the outer side of the groove.

A lens holder is used for fixing a lens in a camera device, and a through hole capable of accommodating the lens is formed in the middle of the lens holder. And a groove surrounding the through hole is formed on one surface of the lens support.

The utility model discloses a camera device accessible disposes different lens holders of different adaptation, and the difference between the different lens holders only lies in the size of lens holder's through-hole and the size of annular groove. Therefore, when different camera devices are required, only the lens bracket can be developed and replaced, and the development cost is greatly reduced.

Drawings

Fig. 1 is a perspective view of an image pickup apparatus according to an embodiment.

Fig. 2 is a view of the imaging device of fig. 1 with the housing removed.

Fig. 3 is a top view of a lens holder of an image pickup apparatus according to an embodiment.

Fig. 4 is a cross-sectional view of the lens holder of fig. 3.

Fig. 5 is a perspective view of the lens holder of fig. 3.

Detailed Description

The following describes the imaging device in further detail with reference to specific embodiments and the accompanying drawings. For convenience of description, the lens optical axis is defined to be parallel to the Z axis of the spatial rectangular coordinate system XYZ, and the subject is defined to be located in front of the image pickup device/lens driving device, that is, in front of the Z axis direction (+ Z direction). In the following description, the end/surface located in the + Z direction is referred to as the front end/front surface of the member, and the end/surface located in the-Z direction is referred to as the rear end/rear surface of the member.

As shown in fig. 1 and fig. 2, in an embodiment, the camera device of the present invention mainly includes a base 10, a housing 20 fastened on the base 10, a lens holder 30, a focusing unit for realizing a focusing function, and an anti-shake unit for realizing a shake compensation function. In fig. 1 and 2, the lens fixed in the lens holder 30 is omitted for the convenience of viewing.

An accommodating space is formed between the base 10 and the housing 20 for accommodating the lens, the lens holder 30, the focusing unit and the anti-shake unit. The base 10 and the front panel of the housing 20 are formed with light-passing holes for passing light. The back side of the base 10 is used for fixing the image sensor and the image processing circuit. In general, when the focusing unit and the anti-shake unit are to drive the lens holder 30 to move, the base 10 and the housing 20, the lens holder 30, the focusing unit and the anti-shake unit constitute an apparatus also referred to as a lens driving apparatus.

The lens holder 30 is also formed at a central portion thereof with a through hole 31, made of a non-conductive material, for receiving and fixing a lens.

In this embodiment, the focusing unit is used to drive the lens holder 30 to move along the optical axis direction relative to the base 10, so as to implement the focusing function. The focusing unit may adopt a conventional focusing structure, such as a voice coil motor type image pickup device, and generally includes a driving coil fixed to a lens holder, a driving magnet fixed to an inner side of the magnet holder or housing, and a plate spring or other elastic means connected between the lens holder and the magnet holder or housing. A plate spring or other elastic means is used to suspend the lens holder within the housing and allow it to move in the optical axis direction.

The anti-shake unit is configured to drive the lens holder 30 to move relative to the base 10 in a direction perpendicular to the optical axis, so as to implement an anti-shake function. The anti-shake unit may be an existing anti-shake structure, for example, in a voice coil motor type camera device, the anti-shake unit generally includes a magnet fixed on a magnet holder, an anti-shake coil fixed on a base or on an inner wall of a housing, and an elastic member connected between the magnet holder and the base. The elastic member is used for supporting the magnet holder suspension in the housing and allowing the magnet holder to move in a direction perpendicular to the optical axis or to rotate or swing around the optical axis, and may be a linear spring or a metal leaf spring or a plate spring.

In other embodiments, the lens holder 30 for fixing the lens may be fixed to the housing 10 so as not to move, the focusing unit may be used to drive the image sensor to move in the optical axis direction, and the anti-shake unit may be used to drive the image sensor to move in the direction perpendicular to the optical axis.

In this embodiment, a groove 33 surrounding the through hole 31 is formed on the back surface 32 of the lens holder 30, i.e., a surface facing the base 10, such that an annular wall 34 is formed between the groove 33 and the through hole 31. The size of the groove 33 is set so that the thickness of the lens holder 30 (the portion between the groove of the lens holder and the outer sidewall of the lens holder) is as uniform as possible, and molding can be performed, so that when different lenses are fitted, the weight of the lens serving as the movable portion and the weight of the lens holder can be as small as possible. The thickness of the annular wall 34 should be greater than or equal to 0.15mm, so that the lens holder can be ensured to have sufficient strength and be used for a long time without being damaged.

Thus, when the image pickup apparatus needs to be provided with a large-sized lens, for example, a lens of 6.5 mm, the diameter of the through hole is set to 6.5 mm, and the depth and width of the groove 33 can be minimized. When the camera device needs to be equipped with a small-sized lens, for example, a lens of 5mm, the diameter of the through hole is set to 5mm, and the width of the groove 33 may be 1.5 mm and the depth may be 1 mm. So, when the camera device demand to the difference, can only develop and change the lens holder can, and the difference between the lens holder of difference only lies in the size of the through-hole of lens holder and the size of annular groove, can reduce development cost greatly.

In addition, a plurality of columns 35 protruding toward the base 10 are formed outside the groove 33, and can be used for fixing the plate spring in the focusing unit and contacting the base 10 to reduce the contact area between the lens support 30 and the base.

In this embodiment, the end of the annular wall 34 is flush with the back surface 32 of the lens holder 30. In a variant, the annular wall 34 projects with respect to the rear face 32 of the lens holder. Thus, the dustproof effect can be realized by matching with the base 10. For example, a groove or a convex wall can be formed on the base 10, which is engaged with the annular wall 34, and in the process of auto-focusing, the projections of the annular wall 34 and the groove or the convex wall of the base on the optical axis are always partially overlapped, so that dust in the camera device can be prevented from falling onto the image sensor, and the imaging effect can be ensured.

In the above embodiments, the image pickup apparatus is configured with the anti-shake unit, and it is understood that in other embodiments, the anti-shake unit may be omitted.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. A camera device comprises a base, a shell buckled on the base, a lens arranged in the shell, a lens bracket and a focusing unit for realizing focusing function; the lens holder is characterized in that a groove surrounding the through hole is formed in one surface, facing the base, of the lens holder.

2. The image pickup device according to claim 1, wherein a plurality of columns protruding toward the base are further formed outside the recess.

3. The image pickup device according to claim 1, wherein an annular wall formed between the recess and the through hole protrudes from a surface of the lens holder.

4. The camera device of claim 1, wherein the thickness of the annular wall 34 formed between the recess and the through hole is greater than or equal to 0.15mm.

5. A lens driving device comprises a base, a shell buckled on the base, a lens bracket used for fixing a lens and a focusing unit used for driving the lens bracket to move relative to the base and the shell; the lens holder is characterized in that a groove surrounding the through hole is formed in one surface of the lens holder facing the base.

6. The lens driving apparatus as claimed in claim 5, wherein a plurality of columns protruding toward the base are further formed outside the groove.

7. The lens driving apparatus as claimed in claim 5, wherein an annular wall formed between the recess and the through hole protrudes from a surface of the lens holder.

8. The lens driving apparatus according to claim 5, wherein a thickness of an annular wall 34 formed between the groove and the through hole is greater than or equal to 0.15mm.

9. A lens holder for fixing a lens in a camera device, wherein a through hole for accommodating the lens is formed in the middle of the lens holder, and a groove surrounding the through hole is formed on one surface of the lens holder.

10. A lens holder according to claim 9, wherein the thickness of the annular wall 34 formed between the groove and the through hole is greater than or equal to 0.15mm.