CN201477275U

CN201477275U - Lens

Info

Publication number: CN201477275U
Application number: CN2009201588227U
Authority: CN
Inventors: 吴丽华; 陈昆明
Original assignee: Asia Optical Co Inc
Current assignee: Asia Optical Co Inc
Priority date: 2009-05-26
Filing date: 2009-05-26
Publication date: 2010-05-19
Anticipated expiration: 2019-05-26

Abstract

The utility model relates to a lens, which comprises a focusing group and a zoom group, and further consists of a main body for fixation, wherein the main body consists of a fixed plate and a cylindrical portion, and is sleeved outside the focusing group and the zoom group, wherein the outer circumference of the focusing group is connected with a first pin, the outer circumference of the zoom group is connected with a second pin, a first cam groove and a second cam groove are arranged on the cylindrical portion, and the first pin and the second pin are respectively matched with the first cam groove and the second cam groove, and can slide in the cam grooves.

Description

Camera lens

Technical field

The utility model relates to the assembly of image capture equipment, more particularly, relates to a kind of camera lens.

Background technology

In the operating process of camera lens, have usually to become the doubly action of (zoom) and focus (focus) at present.This action mainly is that the structure by lens barrel realizes.Fig. 1 and Fig. 2 show the decomposing schematic representation and the combination synoptic diagram of a kind of camera lens in the prior art respectively.See figures.1.and.2, this camera lens 100 comprises the main body 101 that is maintained fixed, and this main body 101 comprises straight flute tube 102.Outside straight flute tube 102, be arranged with the identical focusing cam canister of diameter 103 and become times cam canister 104.Focusing group 105 and change times group 106 all are arranged in the straight flute tube 102.

On straight flute tube 102, be respectively arranged with first straight flute 107 and second straight flute 108 that run through, they all with the parallel axes of straight flute tube 102.On focusing cam canister 103, be provided with first cam path 109 corresponding with first straight flute 107 and that run through.Becoming on times cam canister 104, be provided with second cam path 110 corresponding with second straight flute 108 and that run through.

On the outer peripheral face of focusing group 105, be provided with the first pin connecting hole 111, link to each other with first pin 112.On the outer peripheral face that becomes times group 106, be provided with the second pin connecting hole 113, link to each other with second pin 114.First pin 112 by first straight flute 107 on the straight flute tube 102 after, cooperates also and can slide therein with first cam path 109 on the focusing cam canister 103.Second pin 114 by second straight flute 108 on the straight flute tube 102 after, cooperates also and can slide therein with second cam path 110 on becoming times cam canister 106.

Outside focusing cam canister 103 and change times cam canister 104, also be arranged with urceolus (not shown).On focusing cam canister 103 and change times cam canister 104 outer walls, be fixed with the 3rd, the 4th pin 115,116 respectively, they cooperate with urceolus respectively.When urceolus rotates, can drive focusing cam canister 103 and become times cam canister 104 by the 3rd, the 4th pin 115,116 and rotate.This moment, first, second cam path 109,110 can impel first, second pin 112,114 to slide therein respectively, owing to be subjected to the restriction of first, second straight flute 107,108, first, second pin 112,114 can be along first, second straight flute 107,108 rectilinear motions, thereby feasible focusing group 105 and change times group 106 move along the axis direction of camera lens 100, finish focusing or change doubly.

In this camera lens 100, first, second straight flute 107,108 is used to impel first, second pin 112,114 to slide, thus the interlock of control focusing group 105 and change times group 106.First, second cam path 109,110 limits the shift motion scope and the anglec of rotation by being provided with of length and slope.Because portion's product are more, make the lens construction complexity, increased the die sinking expense, and group to found flow process also corresponding longer.

The utility model content

The technical problems to be solved in the utility model is, at complicated the falling into of lacking of lens construction in the prior art, provides a kind of camera lens simple in structure.

The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of camera lens, comprising:

Focusing group;

Become times group; And

The main body that is maintained fixed comprises fixed head and barrel, and is set in outside described focusing group and the described change times group;

It is characterized in that described outer peripheral face of focusing group links to each other with first pin, the outer peripheral face of described change times group links to each other with second pin; Described barrel is provided with first cam path and second cam path, and described first, second pin cooperates with described first, second cam path respectively also and can slide therein.

According to camera lens described in the utility model, described camera lens also comprises a urceolus that drives described focusing group and change times group's rotation.

According to camera lens described in the utility model, an end of described focusing group exposes from described barrel, on this end, is fixed with the 3rd pin, and described the 3rd pin links to each other with described urceolus.

According to camera lens described in the utility model, described first, second cam path runs through the perisporium of described barrel.

According to camera lens described in the utility model, second pin in the described change times group links to each other with described urceolus.

According to camera lens described in the utility model, described second pin protrudes in the part of described second cam path than described second width of cam groove.

Implement camera lens of the present utility model, have following beneficial effect: since directly on main body milling go out first cam path, second cam path, and whereby control focusing group, become the interlock of times group, its length and slope can limit the shift motion scope and the anglec of rotation.Compared with prior art, do not need extra increasing to be set in two outer cam canisters of main body, reduced portion's product, simplified the upright flow process of lens construction and group.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 shows the decomposing schematic representation of a kind of camera lens in the prior art;

Fig. 2 shows the combination synoptic diagram of a kind of camera lens in the prior art;

Fig. 3 shows the decomposing schematic representation of camera lens of the present utility model;

Fig. 4 shows the combination synoptic diagram of camera lens in the utility model.

Embodiment

Fig. 3 is the decomposing schematic representation of camera lens in the utility model.As shown in Figure 3, camera lens 200 comprises the main body 201 that is maintained fixed, this main body 201 comprise fixed head 202 and with the barrel 203 of fixed head 202 one.This main body 201 has central through hole 204, and the axis direction of barrel 203 is vertical with fixed head 202.On barrel 203, be processed with a plurality of first cam paths 205 and a plurality of second cam path 206 that run through its perisporium, and first cam path 205 is different with second cam path, 206 shapes.

Camera lens 200 also comprises focusing group 207 and becomes times group 208 that this main body 201 is set in focusing group 207 and becomes outside times group 208.The outer peripheral face of focusing group 207 is provided with the first pin connecting hole 209, is connected with first pin 210.The outer peripheral face that becomes times group 208 is provided with the second pin connecting hole 211, is connected with second pin 212.First pin 210 cooperates with first cam path 205 and can slide therein.Second pin 212 cooperates with second cam path 206 and can slide therein.

The end nipple of first pin 210 is for first cam path 205 and slightly wideer than first cam path 205, in order to avoid deviate from from first cam path 205 in the process of sliding.Second pin, 212 to the first pins 210 are long, and its part that protrudes in second cam path 206 is slightly wideer than second cam path 206, and continues to extend.Outside the barrel 203 of main body 201, also be arranged with urceolus (not shown).Second pin 212 is connected with urceolus.

In conjunction with Fig. 3 and Fig. 4, after camera lens 200 assemblings finished, an end 207a of focusing group 207 exposed from barrel 203, and the external diameter of this end 207a is bigger than the diameter of focusing group 207 other parts.On the 207a of this end, be fixed with the 3rd pin 213.The 3rd pin 213 also links to each other with urceolus.

After camera lens 200 assemblings, main body 201 is maintained fixed.When urceolus is subjected to the driving of associated component, can rotate, drive by second pin 212, the 3rd pin 213 respectively simultaneously and become times groups 208,207 motions of focusing group.Owing to be subjected to the restriction of first cam path 205, second cam path 206, first pin 210, second pin 212 can slide along first cam path 205, second cam path 206.Make focusing group 207, change times group 208 in rotation, along the optical axis direction rectilinear motion.

Because directly milling goes out first cam path 205, second cam path 206 on main body 201, and whereby control focusing group 207, become the interlock of times group 208, its length and slope can limit the shift motion scope and the anglec of rotation.Compared with prior art, do not need extra increasing to be set in two outer cam canisters of main body, reduced portion's product, simplified the upright flow process of lens construction and group.

The above; it only is preferred embodiment of the present utility model; protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art; in the technical scope that the present invention discloses; be equal to replacement or change according to the technical solution of the utility model and inventive concept thereof, all should be encompassed within the protection domain of the present utility model.

Claims

1. camera lens comprises:

Focusing group;

Become times group; And

2. camera lens according to claim 1 is characterized in that, described camera lens also comprises a urceolus that drives described focusing group and change times group's rotation.

3. camera lens according to claim 2 is characterized in that, a described end of focusing group exposes from described barrel, on this end, is fixed with the 3rd pin, and described the 3rd pin links to each other with described urceolus.

4. camera lens according to claim 2 is characterized in that described first, second cam path runs through the perisporium of described barrel.

5. camera lens according to claim 4 is characterized in that, second pin in the described change times group links to each other with described urceolus.

6. camera lens according to claim 5 is characterized in that, described second pin protrudes in the part of described second cam path than described second width of cam groove.