CN1786759A

CN1786759A - Variable-focus lens module

Info

Publication number: CN1786759A
Application number: CN200410077461.5A
Authority: CN
Inventors: 张仁淙
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-12-11
Filing date: 2004-12-11
Publication date: 2006-06-14
Anticipated expiration: 2024-12-11
Also published as: CN100412595C

Abstract

The invention relates to a zoom module that includes camera lens base, a rotating lens and image sensor. The invention could realize zoom function by using plural sets of lens set on different direction. It is simple structure, and is easy to install.

Description

The zoom lens module

[technical field]

The invention relates to a kind of zoom lens module.

[background technology]

Along with the continuous development of digital technology, digital camera is because it is easy to use, be easy to carry by people's widespread use, and especially varifocal digital camera more and more is subjected to consumers in general's favor.

See also Fig. 4, Chinese patent discloses a kind of zoom lens module of zoom camera for No. 01122817.2, it comprises lens barrel 61, the fillet of screw 62,64, lead ring 63,65, interior rotor 66, rear lens framework 67, front lens frame frame 51, be installed on lens combination on the camera lens framework (figure is mark), leading to framework 68 and zoom circle 69 etc.By the fillet of screw 62,64, lead ring 63,65 and in cooperatively interacting between the rotor 66, relatively move front lens frame frame 51 and rear lens framework 67 and change distance between front lens group on the framework and the rear lens group, thereby reach the function of zoom.Yet this zoom lens assembly is more, and complex structure is inconvenient to assemble, and therefore is difficult to satisfy the demand of zoom camera microminiaturization.

In view of the shortcoming of above prior art, provide a kind of zoom lens module of simple in structure, easy to assembly and easy microminiaturization real for necessary.

[summary of the invention]

The object of the present invention is to provide a kind of zoom lens module of simple in structure, easy to assembly and easy microminiaturization.

The present invention is a kind of zoom lens module, comprise that a lens mount, rotates a camera lens and an image sensor, this rotation camera lens is arranged in this lens mount, and can in lens mount, rotate, this rotation camera lens has a plurality of lens combination that are arranged at different directions and have different focal, this image sensor is arranged at this rotation camera lens below in the lens mount, and aims at one of them lens combination.

Compared with prior art, zoom lens module of the present invention is realized zoom function, its simple in structure, easy to assembly and easy microminiaturization by being arranged at a plurality of lens combination of rotating on the camera lens different directions.

[description of drawings]

Fig. 1 is the cut-open view of zoom lens module of the present invention;

Fig. 2 is the cut-open view of zoom lens module other direction of the present invention;

Fig. 3 is the stereographic map of the rotation camera lens of zoom lens module of the present invention;

Fig. 4 is the cut-open view of existing zoom lens module.

[embodiment]

See also Fig. 1, zoom lens module 1 of the present invention comprises that a lens mount 10, rotates camera lens 20, a center camera lens 30 and an image sensor 40.

Please consult Fig. 2 simultaneously, lens mount 10 is injection molded by light-proof material, comprise one of one-body molded side body 101, a top board 102 and one with the side body 101 vertical base plates that link to each other 103.Wherein, side body 101 two opposite side walls central authorities respectively offer a mounting hole 1011, and this two mounting hole 1011 aligns mutually; Top board 102 has certain angle of inclination, and its central authorities offer a circular camera aperture 1021; Base plate 103 central authorities are provided with a containing hole 1031, and this containing hole 1031 is a stepped hole, is used to install image sensor 40.

Please consult Fig. 3 simultaneously, rotate camera lens 20 and be arranged in the lens mount 10, it comprises a mirror polygon headstock 21, and these mirror polygon headstock 21 central authorities are provided with a center pit 22.The limit number of the mirror polygon headstock 21 is generally even number, select octagon in the present embodiment for use, this mirror polygon headstock 21 comprises an octagon perisporium (not indicating), be symmetrically distributed with eight faces on the perisporium, promptly be distributed in four groups of parallel surfaces of different directions, each face is provided with a protruding ring 210, the round ring boss of protruding ring 210 for vertically extending outward on the mirror polygon headstock 21 each face.In addition, each face central authorities is penetrated with an eyeglass mounting hole 211 at described perisporium, it is through described protruding ring 210, each eyeglass mounting hole is equipped with a lens set 212 for 211 li, also single eyeglass can only be installed, or only eyeglasses are installed in part eyeglass mounting hole 211 inside, but parallel relative mounting hole 211 has at least one of them to be provided with lens set 212 or single eyeglass, every group relatively and the lens set on the parallel plane be positioned on the same axial line, so form four lens combination L1 altogether, L2, L3, L4, it has different focal lengths respectively, and after each lens combination turns to certain position, all can with circular camera aperture 1021 centrally aligneds of lens mount 10 top boards 102 central authorities.

Center camera lens 30 is not rotatable, comprise a camera lens post 31 and group switching centre lens 32, camera lens post 31 is a right cylinder, is through with a lens hole 311 at the middle position of vertical its axis direction, this center lens 32 comprises a slice lens at least, is arranged in the lens hole 311 of camera lens post 31.Camera lens post 31 cooperates with the center pit 22 of the mirror polygon headstock 21, is placed in the mirror polygon headstock 21 centers, camera lens post 31 rotations relatively of this mirror polygon headstock 21.During installation, make lens hole 311 centers of center camera lens 30 and circular camera aperture 1021 centrally aligneds of lens mount 10 top boards 102, by camera lens post 31 center camera lens 30 is installed in the mounting hole 1011 on the side body 101 of lens mount 10.

Image sensor 40 is arranged in the containing hole 1031 of lens mount 10 base plates 103, and be positioned on the same optical axis with center lens 32, image sensor 40 can be CCD (Charge Coupled Device, charge-coupled device) image sensor, also can be CMOS (Complementary Metal-Oxide Semiconductor, complementary metal oxide semiconductor (CMOS)) image sensor.In addition, above the containing hole 1031 of lens mount 10 base plates 103, be provided with packaged glass 401, image sensor 40 is encapsulated in the lens mount 10, image sensor 40 is shielded.

Zoom lens module 1 is when initial position, rotate camera lens 20 the center lens 32 coaxial settings of a lens combination and center camera lens 30 are arranged, be assumed to lens combination L1, incident ray is incident on the image sensor 40 through lower end lens combination, the packaged glass 401 of circular camera aperture 1021, the upper end lens combination of rotating one of camera lens 20 group lens combination L1, center camera lens 30, rotation camera lens 20 lens combination L1.During zoom, rotate camera lens 20 and turn to certain position, make the center lens 32 coaxial settings of rotating camera lens 20 another group lens and center camera lens 30, be assumed to lens combination L2, so obtain a new focal length, in like manner the center lens 32 of lens combination L3 or L4 and center camera lens 30 is positioned on the same axle center, so form four different focal lengths by rotating camera lens 20 rotations, realize zoom, and then make object imaging on image sensor 5 of far and near different distance.

Be appreciated that center camera lens 30 can save, can form four focal lengths equally, realize zoom, make object imaging on image sensor 40 of far and near different distance.This zoom lens module 1 also can be used for traditional camera, promptly replaces image sensor with film.

Claims

1. zoom lens module, comprise that a lens mount and is arranged at the image sensor in the lens mount, it is characterized in that: this zoom lens module comprises that also one rotates camera lens, wherein this rotation camera lens is located in this lens mount and can be rotated in it, this rotation camera lens has a plurality of lens combination that are arranged at different directions and have different focal, and this image sensor is positioned at this rotation camera lens below, and aims at one of them lens combination.

2. zoom lens module as claimed in claim 1 is characterized in that: this lens mount is injection molded by light-proof material.

3. zoom lens module as claimed in claim 1 is characterized in that: this lens mount comprises a side body, a top board and a base, and base links to each other with side body is vertical, and top board is arranged at the side body upper end.

4. zoom lens module as claimed in claim 3 is characterized in that: these side body two opposite side walls central authorities respectively offer a mounting hole, and this two mounting hole aligns mutually.

5. zoom lens module as claimed in claim 4 is characterized in that: these base central authorities are provided with a containing hole, and image sensor is arranged in this containing hole.

6. zoom lens module as claimed in claim 1 is characterized in that: this rotation camera lens comprises a mirror polygon headstock.

7. zoom lens module as claimed in claim 6 is characterized in that: these mirror polygon headstock central authorities are provided with a center pit, are provided with a center camera lens in the center pit, and this mirror polygon headstock can rotate around the center camera lens.

8. zoom lens module as claimed in claim 7, it is characterized in that: this mirror polygon headstock comprises an octagon perisporium, be symmetrically arranged with eight faces on the described octagon perisporium, each face is provided with a mounting hole through described perisporium, and described mounting hole has at least one of them to be provided with eyeglass.

9. zoom lens module as claimed in claim 8 is characterized in that: this center camera lens comprises group switching centre lens and a camera lens post that cooperates with mirror polygon headstock center pit, and is penetrated with a lens hole that is used for the mounting center lens in the described camera lens post.

10. zoom lens module as claimed in claim 9 is characterized in that: the coaxial setting of a wherein lens combination of this center lens and described rotation camera lens.