CN201017091Y

CN201017091Y - Miniature optical focusing system

Info

Publication number: CN201017091Y
Application number: CNU2007200483360U
Authority: CN
Inventors: 肖明志; 李中杰
Original assignee: Union Optech Co Ltd
Current assignee: Union Optech Co Ltd
Priority date: 2007-02-03
Filing date: 2007-02-03
Publication date: 2008-02-06
Anticipated expiration: 2017-02-03

Abstract

The utility model relates to a focusing system of an optical lens, more specifically, a high-pixel micro optical focusing system. The utility model aims to overcome the shortcomings of the prior art and provide a compact structure that can realize optical focusing. It includes a multifunctional seat, a threaded collar and a lens, the lens is arranged in the collar, a track curved groove that plays a supporting and guiding role is arranged on the vertical wall of the seat, the collar is arranged in the seat and supported by the bottom edge of the track curved groove, and the utility model is used on a camera phone or a digital camera.

Description

A kind of micro-optical focusing system

[technical field]

The utility model relates to the focusing system of optical lens, more particularly is a kind of high pixel minitype optical focusing system.

[background technology]

The digital camera lens of the camera cell phone of Xiao Shouing in the market, it mainly is the optical lens of relatively lower pixel, camera cell phone than higher gears, but this class camera lens is not owing to there is focus function, for the filmed image that guarantees different distance scenery can not have too big difference, in the optical texture design, just can not satisfy the lightness and the contrast of taking picture element; In addition for taking in-plant scenery, owing to there is not focusing system, the scenery image will be smudgy, image planes are differentiated unclear so the object of the existing mobile phone photograph of taking pictures will seem fuzzy, no matter captured photograph picture element is the restriction that the contrast of whole sharpness, lightness or image planes is added shooting distance, and effect is not very desirable.

For solving above-mentioned existing problem, the utility model is made useful improvement.

[utility model content]

The purpose of this utility model is in order to overcome the prior art deficiency, and provide a kind of structure small and exquisite, can realize the optics focusing system.

In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposal:

A kind of micro-optical focusing system, multi-functional bearing and the threaded collar and camera lens have been included, described camera lens is arranged in the collar, it is characterized in that: be provided with the track crank slot of support and guide rail effect at the perpendicular wall place of described bearing, the described collar is arranged in the bearing and by the base of track crank slot and is supporting;

Aforesaid a kind of micro-optical focusing system, it is characterized in that: described track crank slot is three, have the opening that makes things convenient for the collar to put into upwards in the end of track crank slot, the base of the track crank slot of described bearing is divided into the last bent limit of even transition, middle bent limit, curved bottom edge successively, the side of the described collar is respectively arranged with and corresponding three guide shafts of track crank slot, described guide shaft is placed on corresponding track crank slot the inside, one of them guide shaft is for stirring the driving lever of rotation focusing, and this driving lever stretches out the outside from the track crank slot;

Aforesaid a kind of micro-optical focusing system is characterized in that: on the side of the described collar, the top of track crank slot also has been provided with focusing position-limiting action and terminal corresponding spacing point last bent limit, middle bent limit, curved bottom edge;

Aforesaid a kind of micro-optical focusing system is characterized in that: form the optics focusing system by bearing, the collar and camera lens, this system satisfies following formula: 0＜MF-d≤0.2mm 0.5mm≤MF-ml≤1.5mm.

The utility model compared with prior art has following advantage:

Because the utility model is formed the optics focusing system by bearing, the collar and camera lens, its advantage is as follows: the problem that 1. solves high pixel minitype mobile lens focusing system; 2. again by the special cam mechanism of forming by bearing, the collar, realize accurate, the advantages such as precision is reliable, size is little, compact conformation of camera lens focusing action; 3. just can realize focusing owing to stir driving lever with hand, then can solve the problem that camera lens is focused, 6cm is to the shooting of can focusing of infinite distance scenery; 4. because total system has only bearing, the collar and camera lens to form, make that it is simple in structure, production cost greatly reduces, the system reliability height;

[description of drawings]

Fig. 1 is an explosive view of the present utility model;

Fig. 2 is the utility model wiring layout;

Fig. 3 is the wiring layout that the utility model is removed camera lens.

[embodiment]

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

A kind of micro-optical focusing system, include the bearing 1 and the threaded collar 2 and camera lens 3, threads engaged on the screw thread on the described camera lens 3 and the collar 2 collars 2, also be provided with in described bearing 1 and supported and the track crank slot 4 of guide rail effect, the described collar 2 is arranged on 1 li of bearing and is being supported by track crank slot 4.

Have the opening 10 that makes things convenient for the collar 2 to put into upwards in the end of track crank slot 4, the base of the track crank slot 4 of described bearing 1 is divided into the last bent limit 5 of even transition successively, in bent limit 6, curved bottom edge 7, the side of the described collar 2 is respectively arranged with and track crank slot 4 corresponding three guide shafts 8, described guide shaft 8 is placed on corresponding track crank slot 4 the insides, one of them guide shaft 8 is for stirring the driving lever 9 of rotation focusing, this driving lever 9 stretches out the outside from track crank slot 4, described track crank slot 4 is three, it is evenly distributed on the side of bearing 1, the collar 2 that is supporting like this when focusing rotation just very steadily.On the side of described bearing 1, the positive top of track crank slot 4 also has been provided with focusing position-limiting action and terminal

corresponding spacing point

11,12,13 last bent limit 5, middle bent limit 6, curved bottom edge 7, during driving lever 9 on stirring the collar 2, last bent limit 5 on the track crank slot 4, middle bent limit 6, curved bottom edge 7 match with

spacing point

11,12,13 respectively, driving lever 9 has three gears, when driving lever 9 whenever is transferred at one spacing, a focusing range is just arranged.Form the optics focusing system by bearing 1, the collar 2 and camera lens 3, this system satisfies following formula: 0＜MF-d≤0.2mm; 0.5mm≤MF-ml≤1.5mm, wherein, MF-d is the stroke range of focusing system; MF-ml is a burnt scope behind the focusing system permission camera lens machinery.

Also have, form the optics focusing system by bearing 1 collar 2 and camera lens 3, through test---the high temperature and humidity test (80 ℃ of temperature, humidity 95%) of series, temperature cycling test (circulation is 72 hours between 30 ℃ and 70 ℃), vibration test (frequency 10-50-10Hz, amplitude 2mm, 30 minutes time), fall-down test (1.5 meters eminences are fallen), its system accuracy is constant, the equal not damaged of outward appearance.

Optic micro distance focusing system numerical digit camera lens and the contrast of common numerical digit camera lens:

Sequence number	The contrast project	Optics focusing system numerical digit camera lens	Common numerical digit camera lens
Sequence number	The contrast project	Optics focusing system numerical digit camera lens	Common numerical digit camera lens	1	Pixel	More than 2,000,000 pixels	30-200 ten thousand pixels
2	Illumination	Image planes are even, the lightness height	Image planes are whole dark partially	1	Pixel	More than 2,000,000 pixels	30-200 ten thousand pixels
2	Illumination	Image planes are even, the lightness height	Image planes are whole dark partially	3	Contrast	Image planes sharpness height, color is clearly demarcated	Contrast is bad
4	Microspur	Macro function is arranged, can take scenery in the 6cm	No macro function	3	Contrast	Image planes sharpness height, color is clearly demarcated	Contrast is bad

The contrast of optic micro distance focusing system and existing focusing system:

Sequence number	The contrast project	New design focusing system	Existing focusing system
Sequence number	The contrast project	New design focusing system	Existing focusing system	1	Mechanism form	Unique CAM mechanism, simple in structure	The gear worm structure, complex structure,
2	Reliability	The repeatable accuracy height, precision is reliable	Repeatable accuracy is low, instability	1	Mechanism form	Unique CAM mechanism, simple in structure	The gear worm structure, complex structure,
2	Reliability	The repeatable accuracy height, precision is reliable	Repeatable accuracy is low, instability	3	Production cost	Portion's product are few, and production cost is lower	Production cost is higher
4	The profile size	Physical dimension is littler, and is simple in structure	Size is bigger than normal, and parts are many	3	Production cost	Portion's product are few, and production cost is lower	Production cost is higher

Claims

1. A miniature optical focusing system, comprising a multifunctional socket (1) and a threaded collar (2) and a lens (3), the lens (3) is arranged in the collar (2) , characterized in that: the vertical wall of the seat (1) is provided with a track curved groove (4) that acts as a support and a guide rail, and the collar (2) is arranged in the seat (1) and is formed by The base of track curved groove (4) supports.

2. A micro-optical focusing system according to claim 1, characterized in that: there are three track curved grooves (4), and an upward convenient collar is opened at the end of the track curved groove (4) (2) into the opening (10), the bottom edge of the track curved groove (4) of the seat (1) is divided into an evenly transitioned upper curved edge (5), a middle curved edge (6), a lower curved edge side (7), the side of the collar (2) is respectively provided with three guide shafts (8) corresponding to the track curve groove (4), and the guide shafts (8) are placed on the corresponding track curve Inside the groove (4), one of the guide shafts (8) is a driving lever (9) that can be toggled and rotated to focus, and this driving lever (9) stretches out from the track curved groove (4).

3. A micro-optical focusing system according to claim 3, characterized in that: on the side of the collar (2), the upper side of the track curved groove (4) is also provided with a focus limit function and Limiting points (11), (12), (13) corresponding to the ends of the upper curved edge (5), the middle curved edge (6), and the lower curved edge (7).

4. A kind of miniature optical focusing system according to claim 1 or 2 or 3 or 4, characterized in that: the optical focusing system is composed of a seat (1), a collar (2) and a lens (3), the system Satisfy the following expressions: 0<MF-d≤0.2mm; 0.5mm≤MF-ml≤1.5mm.