CN103149656A

CN103149656A - Lens module

Info

Publication number: CN103149656A
Application number: CN2011104027527A
Authority: CN
Inventors: 柯骏程
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Scienbizip Consulting Shenzhen Co Ltd
Priority date: 2011-12-07
Filing date: 2011-12-07
Publication date: 2013-06-12
Anticipated expiration: 2031-12-07
Also published as: CN103149656B

Abstract

The invention discloses a lens module which comprises a lens cylinder and a lens seat. The lens cylinder is contained in the lens seat, the lens cylinder comprises a first hollow round platform portion and a first hollow cylinder portion, the first hollow round platform portion is arranged at one end of the first hollow cylinder portion, the lens seat comprises a second hollow round platform portion and a second hollow cylinder portion, the second hollow round platform portion extends from one end of the second hollow cylinder portion, the first hollow round platform portion and the second hollow round platform portion are arranged on the object side of the lens module, outer diameters of the first hollow round platform portion and the second hollow round platform portion are gradually decreased towards the object side, an include angle between the surface of the first hollow round platform portion and an optical shaft is bigger than that between the surface of the surface of the second round platform portion and the optical shaft, and the outer diameter of the first hollow cylinder portion is equal to the minimum inner diameter of the second round platform portion so as to enable the lens cylinder to be locked in the lens seat.

Description

The camera lens module

Technical field

The present invention relates to a kind of camera lens module.

Background technology

3C Product, as: mobile phone, flat computer and mobile computer, their development trend is light, thin, short, little, therefore be used for taking the camera module of living photo and be used for the camera module that video signal is used, in order to do use in the 3C Product of miniaturization, must enough little volume can be arranged, to avoid camera module because volume is excessive and other part interference, cause and to use, the versatility that perhaps can't can be used in multifarious product simultaneously.

Conventional lenses module lens barrel, microscope base, optical filter, image sensor and printed circuit board (PCB).Inner a slice or the plurality of lens of placing of lens barrel.The first half of microscope base is circular, is the circle symmetry with lens barrel, make the wall thickness of ejection formation even, and volume reaches minimum; Lower Half is rectangle, with the rectangular symmetry of image sensor, in order to can there be sufficient space to place image sensor and other passive component.Optical filter is used for screening the glass plate of required spectrum, and common is circle and rectangle.Image sensor is used for showing that shot object is through the image of camera lens imaging.Printed circuit board (PCB) is used for linking image sensor, and is used as the medium of terminal applies product, when allowing the terminal applies product use camera module, can drive and conducting; In addition, also be used as the support plate of camera lens module, provide above enough areas can be attached to by microscope base.

The camera lens module group of tradition is in mobile phone, flat computer or mobile computer the time, volume is larger, therefore mobile phone, computing machine are placed this camera lens module to avoid and other part interference in order to reserve enough large space, its volume can be relatively large, do not meet light, thin, short, little product design demand.

Summary of the invention

In view of this, be necessary to provide a kind of camera lens module of small volume.

a kind of camera lens module, comprise lens barrel and microscope base, described lens barrel is contained in described lens cone seat, described lens barrel comprises the first hollow round table section and the first hollow circuit cylinder section, the end that described the first hollow round table section is positioned at by described the first hollow circuit cylinder section extends, described microscope base comprises the second hollow round table section and the second hollow circuit cylinder section, described the second hollow round table section is extended by an end of described the second hollow circuit cylinder section, thing side and outer radial thing side that described the first hollow round table section and the second hollow round table section all are positioned at described camera lens module reduce gradually, the surface of described the first hollow round table section and the angle between optical axis greater than the external diameter of the surface of described the second round platform section and the angle between optical axis and described the first hollow circuit cylinder section equal described the second round platform section minimum diameter so that described lens barrel lock in described microscope base.

Compared to prior art, the lens barrel of the camera lens module of the embodiment of the present invention and the thing sidepiece of microscope base are divided into truncated cone-shaped, thereby have reduced the volume of lens barrel and microscope base, make the small volume of camera lens module.

Description of drawings

Fig. 1 is the schematic diagram of embodiment of the present invention camera lens module.

Fig. 2 is the exploded view of embodiment of the present invention camera lens module.

Fig. 3 is the side view of embodiment of the present invention camera lens module.

The main element symbol description

The camera lens module	10
		Lens barrel	11
The first hollow round table section	111
		The first hollow circuit cylinder section	112
External thread	1120
		Microscope base	12
The second hollow round table section	121
		The second hollow circuit cylinder section	122
Square department	123
		Internal thread	1220
Eyeglass	13
		Optical filter	14
Image sensor	15
		Printed circuit board (PCB)	16

Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.

Embodiment

See also Fig. 1, Fig. 2 and Fig. 3, the camera lens module 10 that the embodiment of the present invention provides comprises lens barrel 11, microscope base 12, eyeglass 13, optical filter 14, image sensor 15 and printed circuit board (PCB) 16, and the optical axis of camera lens module 10 is denoted as L.

Lens barrel 11 comprises the first hollow round table section 111 and the first hollow circuit cylinder section 112, the first hollow round table section 111 extends and the external diameter of the first hollow round table section 111 is reduced to the thing side gradually by the first hollow circuit cylinder section 112 the thing side to camera lens module 10 from an end of the first hollow circuit cylinder section 112, and namely intersect in the thing side on the surface of the first hollow round table section 111.Between the surface of the first hollow round table section 111 and optical axis, the angle of L is denoted as

, wherein,

Greater than 0 degree and less than or equal to 63.43 degree.The outside surface of the first hollow circuit cylinder section 112 has external thread 1120.

The height of the first hollow round table section 111 is denoted as a, and the height of lens barrel 11 is denoted as b, and wherein, b is greater than a, and b=5.55a.In the present embodiment, a=1mm, b=5.55mm.

Eyeglass 13 and optical filter 14 all are positioned at lens barrel 11, and the quantity of eyeglass 13 has various different sheet numbers and shape along with the difference of camera lens module 10 specifications and performance, and optical filter 14 is positioned at an end of lens barrel 11 picture sides.

Microscope base 12 is used for carrying lens barrel 11, comprise the second hollow round table section 121, the second hollow circuit cylinder section 122 and square department 123, the second hollow circuit cylinder section 122 is between the second hollow round table section 121 and square department 123, and the second hollow round table section 121 near thing sides, square department 123 near the picture side, the external diameter of the second hollow round table section 121 is reduced to the thing side gradually by the second hollow circuit cylinder section 122, and namely intersect in the thing side on the surface of the second hollow round table section 121.Angle between the second hollow round table section 121 surfaces and optical axis L is denoted as

Figure 2011104027527100002DEST_PATH_IMAGE002

, wherein, Greater than 0 degree and less than or equal to 19.37 degree, and

Less than

The inside surface of microscope base 12 has internal thread 1220, and lens barrel 11 is screwed in microscope base 12 by the cooperation of external thread 1120 and internal thread 1220.

In addition, within that the first hollow round table section 111 of lens barrel 11 and prolongation will be positioned at microscope base 12 and prolongation, in other words, the first hollow round table section 111 is positioned at the second hollow round table section 121 inside.

In addition, the external diameter of the first hollow circuit cylinder section 112 equals the minimum diameter of the second hollow round table section 121, so that lens barrel 11 can be locked in microscope base 12.

Square department 123 is used for placing image sensor 15; In addition, when being square, optical filter 14 also is positioned at the square department 123 of microscope base 12 when optical filter 14, and optical filter 14 between lens barrel 11 and image sensor 15 to be used for screening the required spectrum of camera lens module 10.

The height of the second hollow round table section 121 is denoted as C, and the height of microscope base 12 (comprising the second hollow round table section 121, the second hollow circuit cylinder section 122 and square department 123) is denoted as H, and wherein, H is greater than C, and H=3.01C.In the present embodiment, H=3.85mm, C=1.28mm.

In other embodiments, the value of H, C can change along with the design of camera lens module 10.

Printed circuit board (PCB) 16 is used for linking image sensor 15, and is used as the medium of terminal applies product (for example, camera, computing machine etc.), when allowing the terminal applies product need use camera lens module 10, can drive and conducting; In addition, printed circuit board (PCB) 16 also is used as the support plate of camera lens module 10, provides above enough areas can be attached to by microscope base 12.

Because the lens barrel 11 of camera lens module 10 and the thing sidepiece of microscope base 12 are divided into truncated conical shape, thereby reduced the volume of lens barrel 11 and microscope base 12, and then made camera lens module 10 have less volume.

Be understandable that, those skilled in the art also can do other variation etc. and be used in design of the present invention in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.The variation that these are done according to spirit of the present invention is within all should being included in the present invention's scope required for protection.

Claims

1. camera lens module, comprise lens barrel and microscope base with the optical axis setting, described lens barrel is contained in described lens cone seat, it is characterized in that: described lens barrel comprises the first hollow round table section and the first hollow circuit cylinder section, described the first hollow round table section is positioned at an end of described the first hollow circuit cylinder section, described microscope base comprises the second hollow round table section and the second hollow circuit cylinder section, described the second hollow round table section is extended by an end of described the second hollow circuit cylinder section, thing side and outer radial thing side that described the first hollow round table section and the second hollow round table section all are positioned at described camera lens module reduce gradually, the surface of described the first hollow round table section and the angle between optical axis greater than the external diameter of the surface of described the second round platform section and the angle between optical axis and described the first hollow circuit cylinder section equal described the second round platform section minimum diameter so that described lens barrel lock in described microscope base.

2. camera lens module as claimed in claim 1, is characterized in that, the surface of described the first hollow round table section and the angle between described camera lens module optical axis greater than 0 degree less than or equal to 63.43 degree.

3. camera lens module as claimed in claim 1, is characterized in that, the surface of described the second hollow round table section and the angle between described camera lens module optical axis greater than 0 degree less than or equal to 19.37 degree.

4. camera lens module as claimed in claim 1, is characterized in that, described the first hollow circuit cylinder section has external thread, and described microscope base has internal thread, and described lens barrel is contained in described microscope base by the cooperation of described internal thread and external thread.

5. camera lens module as claimed in claim 1, is characterized in that, described microscope base further comprises a square department, and described the second hollow circuit cylinder section is positioned between described the second hollow round table section and described square department.