CN200979611Y

CN200979611Y - A fine tuning mechanism in zooming system

Info

Publication number: CN200979611Y
Application number: CN 200620066363
Authority: CN
Inventors: 陈天庆
Original assignee: Genius Electronic Optical Xiamen Co Ltd
Current assignee: Genius Electronic Optical Xiamen Co Ltd
Priority date: 2006-10-20
Filing date: 2006-10-20
Publication date: 2007-11-21
Anticipated expiration: 2016-10-20

Abstract

A fine adjusting mechanism of a zoom system comprises a lens cone, a zooming ring and a stating ring, a spring is fixed by a limit ring and top supports lens groups inside the lens cone, the zooming ring which hang-holds the lens groups is fixed on the lens cone by the stating ring, wherein, an internal screw thread is provided on the stating ring, and the internal screw thread is adhesive deposited after being match-adjusted with an external screw thread of the lens cone. A lens is focused by the zooming ring through hand movement rotating the stating ring, removing the whole lens to focus relatively to a microscope base in a wide-angle end, and rotating the zooming ring, adjusting the lens to a telescopic end. Thereby, a focusing position variation may be resulted because of a manufacture tolerance, further rotating the stating ring, making the telescopic end focused on the same image plane with the wide-angle end, and adhesive depositing the stating ring, making a focusing ring located on the lens cone accurately, when the telescopic end focuses, the wide-angle end can be influenced, thereby, the shortfalls of focusing position variation caused by manufacture tolerance can be made up, the problems which the focus can not be done and the focus is blurring can be resolved easily.

Description

The zoom system, pancreatic system micro-adjusting mechanism

Technical field

The utility model relates to a kind of zoom system, pancreatic system micro-adjusting mechanism that is applied to digital camera head, especially refer to that a kind of user of allowing chooses the lens group of proper focal length as required, thereby make image capture mechanism can cooperate the different depth of field and visual field size, reach high-precision zoom eyeglass group position, thereby reach the zoom system, pancreatic system micro-adjusting mechanism of acquisition sharp image effect.

Background technology

In recent years, digital camera gos deep into people's sphere of life gradually as a kind of typical digital product, PC is landed in the atypical recreation of particularly fashionable global EyeToy, digital camera head is imported as a kind of video, many consumers oneself are filmed and import PC recreation into by digital vedio recording is first, have come into the New Times of playing games with interactive image thus.And the digital camera head of this supporting recreation in the market only is a camera lens to be set use for the user on PC, therefore, if the user is when the image of taking the different depth of field and field of view angle, then must adjust the position (or position of the person of being taken) at user place, the action that could capture image clearly and required visual field size and take, if the restriction of position is arranged in the environment of taking, just then the user can't obtain image clearly with the digital camera head more than the PC and obtain the effect of satisfied field angle.

So just occurred to carry out the Digital Zoom camera lens that zoom is adjusted.Cooperate shown in Figure 1, this zoom lens is made up of a lens barrel 1 ' and a zoom ring 2 ', a set collar 3 ', a catch 4 ', a spring 5 ' and a mirror group 6 ', mirror group 6 ' is made of fixed mount 61 ' and the lens set 62 ' that is fixed on the fixed mount 61 ', mirror group 6 ' is relied in the lens barrel 1 ' by spring 5 ', and catch 4 ' is that spring 5 ' is fixed in the lens barrel 1 '; And zoom ring 2 ' is to be placed on from bottom to top on the lens barrel 1 ', simultaneously the fixed mount 61 ' among the mirror group 6 ' is to pass the straight trough 11 ' on lens barrel 1 sidewall and lean in the track of the inwall of zoom ring 2 ', set collar 3 ' is fixed in lens barrel 1 ' afterwards from bottom to top again and goes up some glue and fix and zoom ring 2 ' is arranged on the lens barrel 1 '.So can drive mirror group 6 ' relative lens barrel 1 ' and move up and down, realize the function of camera lens zoom with this by rotation zoom ring 2 '.But the initial alignment position of focusing ring 2 ' on lens barrel 1 ' directly determines the accuracy of product focusing, and because this camera lens is accurate element, thereby in when assembling because the existence of each component processing error, make fixedly can't accurately guarantee the focal position of camera lens during the initial position of zoom ring 2 ', thereby influence the quality of production at set collar 3 '.

The utility model content

The purpose of this utility model is to provide a kind of micro-adjusting mechanism of assembling simple, easy to operate zoom system, pancreatic system with accurate assurance camera lens focusing position.

For achieving the above object, solution of the present utility model is: a kind of freqency fine adjustment machine of zoom system, pancreatic system constitutes, it mainly comprises lens barrel, zoom ring and set collar, leans the mirror group in lens barrel by the baffle ring fixing spring in the lens barrel, and zoom ring hanging support mirror group is installed on the lens barrel by set collar; Wherein: be provided with internal thread on set collar, it cooperates with external thread on the lens barrel adjusts back point glue and fixes.

The surface of described set collar and zoom loop contacts is provided with protruding wall.

After adopting such scheme, because the utility model is when camera lens assembling zoom system, pancreatic system, the internal thread that can cooperate adjustment with lens barrel will be provided with in the set collar, make set collar when fixing zoom ring, can the zoom ring be carried out defocused to camera lens by manual rotation set collar,, move whole the relative microscope base focusing of camera lens in wide-angle side, rotate the zoom ring again, camera lens is transferred to telescope end.At this moment, camera lens may cause the focusing position variation because make tolerance, rotate set collar again, allow telescope end also focus with the same picture of wide-angle side plane on, again set collar is carried out a glue and fixes, with the focusing ring accurate in locating on lens barrel, telescope end when focusing, can not have influence on wide-angle side, to remedy the deficiency that tolerance causes focusing position to make a variation in the processing and fabricating; Easily solved less than problem burnt or that focusing is fuzzy; Manually disposable in process of production to intact burnt getting final product, easy to operate can saves energy, need not in use to focus.

Description of drawings

Fig. 1 is an assembled sectional view of commonly using product;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is an assembled sectional view of the present utility model;

Fig. 4 is a partial enlarged drawing 1 of the present utility model;

Fig. 5 is a partial enlarged drawing 2 of the present utility model;

Fig. 6 is a partial enlarged drawing 3 of the present utility model;

Fig. 7 is a schematic perspective view 1 of the present utility model;

Fig. 8 is a schematic perspective view 2 of the present utility model.

Embodiment

Shown in Fig. 2,3, camera lens zoom system, pancreatic system of the present utility model, it comprises: a lens barrel 1 and a zoom ring 2, a set collar 3, a catch 4, a spring 5, a mirror group 6 and a microscope base 7.

Lens barrel 1 is a logical body in, and its inwall is provided with screens step 11, and its middle part is provided with three straight troughs 12, and its two ends are provided with the external thread 13 that cooperates with other parts in addition.

Zoom ring 2 is a ring set, and its inwall is provided with three surface grooves 21, and wherein there are breasting face 211 and breasting face 212 in the two ends of each surface groove 21, and breasting face 211 is a telescope end, and breasting face 212 is a wide-angle side.

Mirror group 6 comprises a fixed mount 61 and a lens set 62, and lens set 62 is fixed on the fixed mount 61, and fixed mount 61 outer rims convex with three legs 611;

Microscope base 7 is threaded engagement with lens barrel 1.

And key of the present utility model is: this set collar 3 is provided with internal thread 31, and the surface that set collar 3 contacts with zoom ring 2 is provided with protruding wall 32.

During combination, cooperate shown in Figure 3ly, fixed mount 61 is being with lens set 62 to place lens barrel 1, and three of fixed mount 61 protruding pin 611 are aimed at three straight troughs, 12 assemblings of lens barrels 1 simultaneously, and stretches and place outside the straight trough 12; Spring 5 leans mirror group 6 and is fixed in the lens barrel 1 by catch 4, and catch 4 is to lean on the screens step 11 of lens barrel 1, and spring 5 is between catch 4 and mirror group 6.Again zoom ring 2 is placed on the lens barrel 1 from bottom to top, and three protruding pin 611 of mirror group 6 fixed mount 61 just in time are matched with in three surface grooves 21 of zoom ring 2 inwalls, zoom ring 2 can not deviate from from the top of lens barrel 1.At last set collar 3 is placed on the lens barrel 1 from bottom to top zoom ring 2 is limited on the lens barrel 1, it can not deviate from from the bottom of lens barrel 1.

Extremely shown in Figure 8 as Fig. 4, trim process of the present utility model: when set collar 3 when being placed on the bottom of lens barrel 1, manually left rotation and right rotation set collar 3 drives zoom ring 2, simultaneously under the effect of the elastic force of spring 5 and lens barrel 1 straight trough 12, mirror group 6 can only be along the axle center linearly operating, make three projections 611 of fixed mount 61 of zoom system, pancreatic system micro-adjusting mechanism slide along the surface groove 21 of zoom ring 2, just can realize solid from Fig. 5 to required amount of movement shown in Figure 6, under the effect through fine setting set collar 3 and spring 5, can make zoom ring 2 along the axle center from Fig. 5 position to the fine setting between Fig. 6 position, the setting that needs in addition explanation set collar 3 epirelief walls 32 is that set collar 3 relative lens barrels 1 are finely tuned and the spatial altitude reserved, again 3 glue of set collar are positioned on the lens barrel 1 defocused, cooperate shown in Figure 7, in trim process, projection 611 is positioned at straight trough 12 bottoms promptly in wide-angle side, move whole relative microscope base 7 focusings of camera lens, can be earlier in this wide-angle side focusing, after clear image planes, rotate zoom ring 2 again, the last continuing surface 211 of camera lens being transferred to surface groove 21 is telescope end (cooperating shown in Figure 8).At this moment, camera lens may cause the focusing position variation because make tolerance, rotate set collar again, allow telescope end also focus with the same picture of wide-angle side plane on, can make zoom group carry out high-precision location, and can realize that its miniaturization, manufacturing process are oversimplified and the effect of with low costization, to remedy the deficiency that tolerance causes focusing position to make a variation in the processing and fabricating; Easily solved less than problem burnt or that focusing is fuzzy; Manually disposable in process of production to intact burnt getting final product, easy to operate can saves energy, need not in use to focus.

Claims

1, a kind of micro-adjusting mechanism of zoom system, pancreatic system, it mainly comprises lens barrel, zoom ring and set collar, leans the mirror group in lens barrel by the baffle ring fixing spring in the lens barrel, zoom ring hanging support mirror group is installed on the lens barrel by set collar; It is characterized in that: be provided with internal thread on set collar, it cooperates with external thread on the lens barrel adjusts back point glue and fixes.

2, the micro-adjusting mechanism of zoom system, pancreatic system as claimed in claim 1 is characterized in that: the surface of set collar and zoom loop contacts is provided with protruding wall.