CN201662646U - Manual focusing zoom lens - Google Patents
Manual focusing zoom lens Download PDFInfo
- Publication number
- CN201662646U CN201662646U CN2010201513524U CN201020151352U CN201662646U CN 201662646 U CN201662646 U CN 201662646U CN 2010201513524 U CN2010201513524 U CN 2010201513524U CN 201020151352 U CN201020151352 U CN 201020151352U CN 201662646 U CN201662646 U CN 201662646U
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- focusing
- cylindrical body
- zoom
- zoom lens
- lens
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Abstract
The utility model discloses a manual focusing zoom lens comprising a lens base and a tubular main body, wherein the tubular main body is threadedly matched and connected on the lens base; a focusing lens group and a zoom lens group are arranged on the tubular main body; the focusing lens group is arranged in a front tube of the tubular main body and is locked and fixed by a lens front cover; the zoom lens group is arranged in a zoom group lens tube; the zoom group lens tube is further arranged in a rear tube of the tubular main body and is in sliding fit with the tubular main body; a spring is axially arranged in the tubular main body which is circumferentially fixed by a guiding and positioning device so as to limit the rotating degree of freedom; a focusing tube and a focusing ring are sleeved outside the rear tube of the tubular main body; the focusing tube is closely attached to the guiding and positioning device; the focusing ring is closely attached to the focusing tube and is locked and fixed by a C-shaped ring; and an axial propulsion structure is arranged between the focusing ring and the focusing tube.
Description
Technical field
The utility model relates to a kind of camera lens, relates in particular to a kind of manual focusing zoom lens.
Background technology
Conventional lenses generally is to focus by screw thread, if zoom then needs very complicated structure and adopts the compensation of optical compensation group, cost height, complicated operation.
Summary of the invention
Problem to be solved in the utility model provides a kind of simple and ingenious structure, can realize manual focusing and can accurately locate the manual focusing zoom lens of zoom.
The technical scheme that the utility model adopted is: the manual focusing zoom lens, comprise microscope base and cylindrical body, described cylindrical body is connected on the microscope base by threaded engagement, the amasthenic lens group is installed on the described cylindrical body, zoom lens group, described amasthenic lens group is installed in the anterior stack shell of cylindrical body, and pin fixing by the camera lens protecgulum, described zoom lens group is installed in the zoom group lens barrel stack shell, the zoom group lens barrel is installed in the stack shell of cylindrical body rear portion again and is slidingly matched with cylindrical body, and axially be provided with spring between cylindrical body, and by guide locating device provided circumferentially fixing to limit its rotational freedom, described cylindrical body rear portion stack shell overcoat has focusing drum, focusing ring, described focusing drum and guide locating device provided being close to, described focusing ring and focusing drum be close to and live by C shape ring lock fixing, and and focusing drum between be provided with the axial advance structure.
In the such scheme, the preferred described guide locating device provided bar shaped pilot hole that comprises that the relevant position is provided with on more than one guider screw and the cylindrical body, described guider screw passes the strip pilot hole of establishing on the cylindrical body and is screwed into the zoom group lens barrel.
Described axial advance structure comprises the dovetail groove that is provided with equal number with convex platform and focusing drum that focusing ring is provided with.
Described focusing drum is provided with position-limiting ear, and the relevant position is provided with gag lever post on the described microscope base, and described focusing drum upper limit ear muff is gone into microscope base upper limit bar and is limited by it rotational freedom.
Described zoom lens group comprises three spheric glasses, and described amasthenic lens group comprises two aspherical lens.
Described zoom lens group also can comprise an optical filter.
The beneficial effects of the utility model are: the utility model moves axially the accurate zoom of realization by rotating focusing ring axial advance focusing drum promotion zoom lens group, realize manual focus by the rotation cylindrical body by threaded engagement with microscope base, need not the optical compensation group like this and just can realize manual focusing, and can accurately locate zoom, simple and ingenious structure, the low effect of cost is good, can be widely used in the multi-functional multi-level high-definition scanning of short distance field, as negative film scanner, photo scanning instrument, multi-functional egative film photo one scanner etc.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the contour structures synoptic diagram of the utility model embodiment;
Fig. 2 is the decomposition texture synoptic diagram of the utility model embodiment;
Fig. 3 is the sectional structure synoptic diagram of the utility model embodiment;
Fig. 4 is the half section structural representation of the utility model embodiment;
Fig. 5 is the zoom process synoptic diagram of the utility model embodiment.
Embodiment
Figure 1 shows that the contour structures synoptic diagram of the utility model embodiment, as Fig. 2, Fig. 3, shown in Figure 4, the manual focusing zoom lens, comprise microscope base 16 and cylindrical body 1, cylindrical body 1 is connected on the microscope base 16 by threaded engagement, the amasthenic lens group is installed on the cylindrical body 1, zoom lens group, the amasthenic lens group comprises two plastic cement aspherical lens 8,10, the amasthenic lens group is installed in the cylindrical body 1 anterior stack shell, and pin fixing by threaded camera lens protecgulum 2, zoom lens group comprises three spheric glasses 11,12,13 and one optical filter 14, zoom lens group is installed in zoom group lens barrel 7 stack shells, zoom group lens barrel 7 is installed in the cylindrical body 1 rear portion stack shell and with cylindrical body 1 again and is slidingly matched, and 1 is axially arranged with spring 3 between cylindrical body, guider screw 5 passes the relevant position is provided with on the cylindrical body 1 bar shaped pilot hole 101 and is screwed on the zoom group lens barrel 7 and can limits its rotational freedom, cylindrical body 1 rear portion stack shell overcoat has focusing drum 4, focusing ring 6, focusing drum is close to guider screw 5 after being inserted in cylindrical body 1, focusing ring 6 is close to focusing drum 4 and is pinned axial restraint by C shape ring 15,3 boss 601 that focusing ring 6 is provided with head in 3 dovetail grooves 401 that focusing drum 4 relevant positions are provided with, then cylindrical body 1 screws in microscope base 16 by being threaded, and the position-limiting ear 402 on the focusing drum 4 promptly is inserted on the gag lever post 161 that microscope base 16 is provided with by its restriction rotational freedom.
When accurately locating zoom, stir focusing ring 6 and make its rotation, as Fig. 5 as showing, 3 boss 601 on the focusing ring 6 slide along 3 dovetail grooves 401 of focusing drum 4, promoting focusing drum 4 moves axially, thereby promotion is fixed on 3 guide screw 5 of zoom group lens barrel 7 moves axially zoom group, under the elastic force effect of spring 3, the amount of movement of zoom group all the time one to equivalent in the focusing drum displacement, thereby make camera lens accomplish accurately to locate zoom, need not optics like this and mend to taste and just can realize that two sections are accurately located zoom functions,, can realize that also multistage accurately locatees zoom if the dovetail groove of focusing drum 4 is made multistage.
When carrying out manual focusing, present embodiment need not optical compensation and can equally simply focus as common tight shot, because the optical frames spacing of camera lens does not change, just the cylindrical body 1 of camera lens moves axially, because focusing ring 6, focusing drum 4, C type ring 15 accessories such as grade all are to be assemblied on the cylindrical body 1, when rotation cylindrical body 1, two position-limiting ears 402 on the focusing drum 4 are enclosed within the gag lever post 161 that microscope base 16 is provided with, spacing focusing drum 4 can not rotate and can only move, and cylindrical body 1 is to make screw thread rotation along with the screw of microscope base 16, optical axis direction with time delay moves as axial direction, get final product the picture plane of regulated at will camera lens, realize the function of manual focusing.
Claims (6)
1. manual focusing zoom lens, it is characterized in that: comprise microscope base and cylindrical body, described cylindrical body is connected on the microscope base by threaded engagement, the amasthenic lens group is installed on the described cylindrical body, zoom lens group, described amasthenic lens group is installed in the anterior stack shell of cylindrical body, and pin fixing by the camera lens protecgulum, described zoom lens group is installed in the zoom group lens barrel stack shell, the zoom group lens barrel is installed in the stack shell of cylindrical body rear portion again and is slidingly matched with cylindrical body, and axially be provided with spring between cylindrical body, and by guide locating device provided circumferentially fixing to limit its rotational freedom, described cylindrical body rear portion stack shell overcoat has focusing drum, focusing ring, described focusing drum and guide locating device provided being close to, described focusing ring and focusing drum be close to and live by C shape ring lock fixing, and and focusing drum between be provided with the axial advance structure.
2. manual focusing zoom lens according to claim 1, it is characterized in that: the described guide locating device provided bar shaped pilot hole that comprises that the relevant position is provided with on more than one guider screw and the cylindrical body, described guider screw passes the strip pilot hole of establishing on the cylindrical body and is screwed into the zoom group lens barrel.
3. manual focusing zoom lens as claimed in claim 1 or 2, it is characterized in that: described axial advance structure comprises the dovetail groove that is provided with equal number with convex platform and focusing drum that focusing ring is provided with.
4. as manual focusing zoom lens as described in the claim 3, it is characterized in that: described focusing drum is provided with position-limiting ear, and the relevant position is provided with gag lever post on the described microscope base, and described focusing drum upper limit ear muff is gone into microscope base upper limit bar and is limited by it circumferential degree of freedom.
5. as manual focusing zoom lens as described in the claim 4, it is characterized in that: described zoom lens group comprises three spheric glasses, and described amasthenic lens group comprises two aspherical lens.
6. as manual focusing zoom lens as described in the claim 5, it is characterized in that: described zoom lens group comprises an optical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201513524U CN201662646U (en) | 2010-03-31 | 2010-03-31 | Manual focusing zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201513524U CN201662646U (en) | 2010-03-31 | 2010-03-31 | Manual focusing zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662646U true CN201662646U (en) | 2010-12-01 |
Family
ID=43233065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201513524U Expired - Lifetime CN201662646U (en) | 2010-03-31 | 2010-03-31 | Manual focusing zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662646U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269856A (en) * | 2011-07-12 | 2011-12-07 | 苏州信达光电科技有限公司 | Optical system focusing mechanism |
| CN102768393A (en) * | 2011-05-04 | 2012-11-07 | 三星电子株式会社 | Device for transferring optical elements |
| CN105100555A (en) * | 2014-05-07 | 2015-11-25 | 奇景光电股份有限公司 | Image sensing module and method for adjusting focal length of image sensing module |
| CN107748425A (en) * | 2017-11-30 | 2018-03-02 | 江苏康尚生物医疗科技有限公司 | A kind of screw thread focus control |
| CN108873231A (en) * | 2018-08-28 | 2018-11-23 | 厦门力鼎光电股份有限公司 | A kind of lens focusing device |
-
2010
- 2010-03-31 CN CN2010201513524U patent/CN201662646U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768393A (en) * | 2011-05-04 | 2012-11-07 | 三星电子株式会社 | Device for transferring optical elements |
| CN102768393B (en) * | 2011-05-04 | 2016-06-29 | 三星电子株式会社 | For moving the device of optical element |
| CN102269856A (en) * | 2011-07-12 | 2011-12-07 | 苏州信达光电科技有限公司 | Optical system focusing mechanism |
| CN105100555A (en) * | 2014-05-07 | 2015-11-25 | 奇景光电股份有限公司 | Image sensing module and method for adjusting focal length of image sensing module |
| CN105100555B (en) * | 2014-05-07 | 2018-09-04 | 奇景光电股份有限公司 | The method of the focal length of image sensing module and adjustment image sensing module |
| CN107748425A (en) * | 2017-11-30 | 2018-03-02 | 江苏康尚生物医疗科技有限公司 | A kind of screw thread focus control |
| CN108873231A (en) * | 2018-08-28 | 2018-11-23 | 厦门力鼎光电股份有限公司 | A kind of lens focusing device |
| CN108873231B (en) * | 2018-08-28 | 2023-10-24 | 厦门力鼎光电股份有限公司 | Lens focusing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190226 Address after: 518110 1-4 floors of A5 light industrial building in Tongsheng Industrial Zone, Tongsheng Community, Dalang Office, Longhua New District, Shenzhen City, Guangdong Province Patentee after: Taiyi Optoelectronic Technology (Shenzhen) Co., Ltd. Address before: 518109 Guangzhou Shenzhen Bao'an District Longhua Street Tanluo Village Tongsheng Industrial Zone Light Industrial Plant A5 Building 1 to 4 Platform also Photoelectric Technology (Shenzhen) Co., Ltd. Patentee before: Hong Zhengnan |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |
|
| CX01 | Expiry of patent term |