CN1570689A - Integrative zoom lens - Google Patents
Integrative zoom lens Download PDFInfo
- Publication number
- CN1570689A CN1570689A CN03139805.7A CN03139805A CN1570689A CN 1570689 A CN1570689 A CN 1570689A CN 03139805 A CN03139805 A CN 03139805A CN 1570689 A CN1570689 A CN 1570689A
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Abstract
This invention discloses a integral zoom lens especially for digit shot, comprises zoom lens sets, variable-focus apparatus, variable-focus apparatus for taking scape and focusing apparatus, particularly moving directly (fixing image sensing device about CCD/CMOS) image sensing device setting, adjusting the space between zoom lens to realize focusing function. The variable-focus directional barrel and zoom lens sets (zoom lens) separately have groove and arris controlling lens optic axis and moving straightly to assure every zoom lens sets (zoom lens) rectilinearly-moving homogeneously along the axis according to the rule offering by variable-focus cam, and the variable-focus cam tubule of taking scape and the location and the interlock of it assuring the lens and viewfinder to act synchronously
Description
Technical field:
The present invention relates to a kind of integrated zoom lens that is used for digital filming (promptly adopt image sensors such as CCD/CMOS obtain picture information) equipment.The mobile image of special proposition obtains the focusing operating mechanism of parts.
Background technology:
Be subjected to the influence of film camera Focusing mechanism Design Mode, the zoom lens of present digital filming equipment (as digital camera, digital gamma camera etc.) or (the whole camera lens) of taking a mobile arrangement of mirrors (sheet) to organize or move whole zoom lens realization capture apparatus are focused and are operated.Why film camera adopts this mode to be because film is difficult to move, and does something against one's will.Because Zoom lens structure complexity, mechanism with AF function are implicative of each other, moving lens carries out automatically/electronic focusing operation, though it is required well to finish function, has complex structure, increases the shortcoming of cost, is unfavorable for batch process.
On the other hand, for obtaining favorable imaging quality, guarantee that each mirror (sheet) group steadily moves very crucial along optical axis in the zoom lens.The scheme that addresses this problem in the prior art is each has something to recommend him, but general more complicated all.
Again on the one hand, obtain the zoom information and the focusing information of zoom lens synchronously, the closed-loop control of the inner image processing of logarithmic code capture apparatus, zoom and focusing is most important.Prior art adopts the contact design more, has increased many chance failure.
Again on the one hand, use capture apparatus (as digital camera and digital gamma camera) to carry out zoom when finding a view, view finder must synchronous zoom.Zoom finder and zoom lens be connected and synchronously the mode of finding a view merit attention.
Again on the one hand, the zoom lens design must take into account performance, cost and productibility, and for reducing cost, industrialization manufactures a finished product in a large number and provides convenience.
Summary of the invention:
Purpose of the present invention is exactly in order to solve problems such as prior art unreasonable structure, cost height, and a kind of integrated zoom lens that is suitable for digital filming equipment is provided.
The present invention realizes that the scheme of above-mentioned purpose is: a kind of integrated zoom lens, comprise varifocal mirror group and coupled zoom lens control device, it is characterized in that: also comprise focusing mechanism, described focusing mechanism links to each other with image sensor, drives image sensor and moves to realize focusing.
Described focusing mechanism comprises mobile image sensor seat and coupled gear train, and described gear train has following dual mode:
Mode one: described gear train comprises focusing cam canister, focusing micromachine, focusing reduction gearing mechanism, and mobile image sensor seat is used to place the image sensors such as CCD/CMOS of taking image; The focusing micromachine is installed on the zoom directional tube, and the focusing reducing gear is integrated on the zoom directional tube, and the focusing micromachine drives the focusing gear train, and rotation focusing cam canister moves mobile image sensor seat straight line, to realize the focusing operation.
Mode two: described gear train comprises focusing micromachine, focusing reduction gearing mechanism and moving guide rail (20), and mobile image sensor seat (10) is used to place the CCD/CMOS sensor of taking image; The focusing micromachine is used for driving the focusing gear train, makes mobile image sensor seat (10) go up straight line at moving guide rail (20) and moves, to realize the focusing operation.
Described focusing mechanism also comprises contactless focusing shift position sensor, is used for providing synchronously the moving parameter of mobile image sensor seat, uses for automatic/electronic focusing closed-loop control.
Described zoom lens control device comprises that zoom directional tube, zoom cam cylinder, zoom drive nail, zoom parameters sensor, zoom micromachine, zoom reduction gearing mechanism; Zoom drive nail passes zoom cam cylinder and zoom directional tube straight-line groove and is fixed on the varifocal mirror group; The zoom micromachine also is installed on the zoom directional tube, and the zoom reduction gearing mechanism is integrated on the zoom directional tube, and the zoom micromachine drives the zoom cam cylinder rotation through the zoom reduction gearing mechanism; In zoom cam cylinder when rotation, drive zoom and drive nail, zoom drive that nail drives the varifocal mirror group and under the restriction of zoom directional tube straight trough straight line move.
Have groove on the varifocal mirror group periphery, this groove is done minim gap with the fin on the zoom directional tube correspondence position and is cooperated.Described zoom lens control device also comprises contactless zoom parameters sensor, is used for synchronously providing zoom parameters, uses for automatic/power zoom closed-loop control.
Similar to the zoom lens moving lens, have groove on the mobile image sensor seat periphery, they cooperate with fin fine clearance on the correspondence position in the zoom directional tube; The focusing cam canister is enclosed within zoom positioning tube outside, passes behind the focusing cam canister and passes the zoom positioning tube, thereby be that straight line moves in the zoom positioning tube when making mobile image sensor seat mobile.
Described zoom micromachine, zoom reduction gearing mechanism, focusing micromachine and focusing reduction gearing mechanism are integrated on the zoom directional tube; Described Zoom finder is fixed on the zoom directional tube.
This device comprises that also the zoom cam cylinder of finding a view, view finder move group, find a view zoom cam cylinder twice fin location and rotation synchronously on zoom cam cylinder; The Zoom finder module is installed on the platform of zoom directional tube setting; The outstanding cam rib of finding a view on the zoom cam cylinder is positioned at Zoom finder and moves the group clamp-shape groove; In zoom cam cylinder when rotation, drive the zoom cam cylinder of finding a view synchronously, and the zoom cam cylinder cam rib of finding a view drives Zoom finder synchronously and moves group and realize that synchronous zoom finds a view.
At the zoom cam cylinder and the zoom cam cylinder of finding a view location fin and recessed rib can be set respectively also, so that guarantee the Zoom finder synchronous zoom during rotation zoom cam cylinder, the vertical string of the zoom cam cylinder that prevents to find a view is moving.
Adopt the beneficial effect of above scheme: the present invention takes fixing whole zoom lens, and the mode of mobile image receiver spare, realized equally capture apparatus automatically/electronic focus function.Obviously, for digital filming equipment, mobile image receiver spare makes things convenient for manyly than mobile whole lens group, mobile image receiver spare carries out automatically/electronic focusing operation, well finish function required in, also have advantage simple in structure, that reduce cost, help producing in batches.
Adopt contactless focusing shift position sensor and zoom parameters sensor, can avoid contact, reduce the chance failure incidence focusing, zoom mechanism.
Minim gap between groove and the fin cooperates assurance inner each mirror of zoom lens (sheet) group to move along the optical axis straight line as far as possible.
This device can also guarantee zoom cam cylinder when rotation to drive the zoom cam cylinder of finding a view synchronously, and the zoom cam cylinder cam rib of finding a view drives Zoom finder synchronously and moves group and realize that synchronous zoom finds a view.
Description of drawings:
Fig. 1 is a zoom lens example three-dimensional exploded view of the present utility model.
Fig. 2 is the synoptic diagram of this patent relevant straight line running fix fin and groove.
Fig. 3 is that this patent is the another kind of zoom lens example three-dimensional exploded view that " mobile image sensor seat " realizes the focusing operation that directly moves.
Embodiment:
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
As Fig. 1-3, shown in integrated zoom lens comprise varifocal mirror group 1 and coupled zoom lens control device, it is characterized in that: also comprise focusing mechanism, described focusing mechanism links to each other with image sensor, drives image sensor and moves to realize focusing.According to the difference of gear train, following two kinds of embodiment can be arranged:
Embodiment one: as shown in Figure 1, described focusing mechanism comprises mobile image sensor seat 10, focusing cam canister 12, focusing micromachine, focusing reduction gearing mechanism, and mobile image sensor seat 10 is used to place the image sensors such as CCD/CMOS of taking image; The focusing micromachine is used for driving the focusing gear train, and rotation focusing cam canister 12 moves mobile image sensor seat 10 straight lines, to realize the focusing operation.
Described focusing mechanism also comprises contactless focusing shift position sensor, is used for providing synchronously the moving parameter of mobile image sensor seat 10, uses for automatic/electronic focusing closed-loop control.Described contactless focusing shift position sensor can adopt electro-optical pickoff, Magnetic Sensor etc.
Described zoom lens control device comprises that zoom directional tube 2, zoom cam cylinder 3, zoom drive nail 4, zoom parameters sensor 5, zoom micromachine 6, zoom reduction gearing mechanism 7; Zoom drive nail 4 passes zoom cam cylinder 3 and zoom directional tube 2 straight-line grooves and is fixed on the varifocal mirror group 1; Zoom micromachine 6 is installed on the zoom directional tube 2, and zoom reduction gearing mechanism 7 is integrated on the zoom directional tube 2, and zoom micromachine 6 drives zoom cam cylinder 3 rotations through zoom reduction gearing mechanism 7; Drive zoom during zoom cam cylinder 3 rotation and drive nail 4, zoom drive that nail 4 drives varifocal mirror groups 1 and under the restriction of zoom directional tube 2 straight troughs straight line move.
As Fig. 2, have groove on varifocal mirror group 1 periphery, this groove is done minim gap with the fin on zoom directional tube 2 correspondence positions and is cooperated.In like manner, also have groove on mobile image sensor seat 10 peripheries, they cooperate with fin fine clearance on the correspondence positions in the zoom directional tube 2; Focusing cam canister 12 is enclosed within zoom positioning tube 2 outsides, and 11 pass focusing cam canister 12 back and pass zoom positioning tube 2, thereby is that straight line moves in zoom positioning tube 2 when mobile image sensor seat 10 is moved.In the present embodiment, described groove and fin respectively have three, preferably adopt the round end surface, so that smooth moving is convenient to cooperation, but also do not get rid of other shapes such as employing is square, dovetail groove.
Contactless zoom parameters sensor 5 (photoelectric sensor, Magnetic Sensor etc.) also can be set, be used for synchronously providing zoom parameters, use for automatic/power zoom closed-loop control.
Described zoom micromachine 6, zoom reduction gearing mechanism 7, focusing micromachine and focusing reduction gearing mechanism are integrated on the zoom directional tube 2; Described Zoom finder is fixed on the zoom directional tube 2.
The zoom cam cylinder 8 of finding a view, view finder also can be set move group 9, find a view zoom cam cylinder 8 twice fin location and rotation synchronously on zoom cam cylinder 3; The Zoom finder module is installed on the platform of zoom directional tube 2 settings; The outstanding cam rib of finding a view on the zoom cam cylinder 8 is positioned at Zoom finder and moves group 9 clamp-shape grooves; During zoom cam cylinder 2 rotation, drive the zoom cam cylinder 8 of finding a view synchronously, the zoom cam cylinder 8 cam ribs of finding a view drive Zoom finder synchronously and move group 9 and realize that synchronous zoom find a view.
At the zoom cam cylinder 3 and the zoom cam cylinder 8 of finding a view location fin and recessed rib are set respectively, so that guarantee the Zoom finder synchronous zoom during rotation zoom cam cylinder 3, the zoom cam cylinder 8 vertical strings that prevent to find a view are moving.
Embodiment two: Fig. 3 proposes another linear drives " mobile image sensor seat 10 ", when realizing focusing operation on a large scale, can also reduce the difficulty of processing of part:
As shown in Figure 3, the micromachine that is installed on the zoom directional tube 2 drives and the rotation of reduction gear driving screw mandrel.Along with the rotation direction of screw mandrel, the screw thread on the mobile image sensor seat 10 drives sensor holder under the effect of 3 guide rails, and the accurate straight line in front and back moves.Contactless focusing shift position sensor 15 is housed in motor drives up mechanism, is used for providing synchronously the moving parameter of mobile image sensor seat 10, use for automatic/electronic focusing closed-loop control.At mobile image sensor seat 10 straight line moving directions, the non-contacting sensor that provides straight line to move forward and backward end points position signalling has been installed also.Described contactless focusing shift position sensor can adopt electro-optical pickoff, Magnetic Sensor etc.
This zoom lens focusing scheme helps simplifying the part processing difficulty, is convenient to realize focus automatically on a large scale control.
For reducing the cost of whole zoom lens, use injection-moulded plastic part as far as possible, industrialization manufactures a finished product in a large number, the utility model is integrated in the parts such as gear case of zoom and focusing mechanical transmission mechanism on the zoom directional tube, with the Zoom finder module, automatically/power zoom module, automatically/electronic Focusing module is installed on the zoom directional tube becoming one zoom lens.
Among the figure, 100 is image sensor or pcb board, and 30 is the positioning edge corresponding groove, and 40 is positioning edge, and 50 is the view finder module, and 92 is lens cap, and 93 is focusing position sensor (or claiming the focusing parameter sensors), and 94 are the focusing reducing gear.
Way processing, making that this patent proposes are simple, and effect is remarkable.
Claims (11)
1. an integrated zoom lens comprises varifocal mirror group (1) and coupled zoom lens control device, it is characterized in that: also comprise focusing mechanism, described focusing mechanism links to each other with image sensor, and the distance that changes image sensor and zoom lens is to realize focusing.
2. integrated zoom lens as claimed in claim 1, it is characterized in that: described focusing mechanism comprises mobile image sensor seat (10) and coupled gear train, described gear train comprises, focuses and drives nail (11), focusing cam canister (12), focusing micromachine (13), focusing reduction gearing mechanism (14), and mobile image sensor seat (10) is used to place the image sensors such as CCD/CMOS of taking image; Focusing drives nail (11) and passes focusing cam canister (12), is fixed on the mobile image sensor seat (10); Focusing micromachine (13) is used for driving focusing gear train (14), and rotation focusing cam canister (12) drives nail (11) through focusing mobile image sensor seat (10) straight line is moved, to realize the focusing operation.
3. integrated zoom lens as claimed in claim 1, it is characterized in that: described focusing mechanism comprises mobile image sensor seat (10) and coupled gear train, described gear train comprises focusing micromachine, focusing reduction gearing mechanism and moving guide rail (20), and mobile image sensor seat (10) is used to place the CCD/CMOS sensor of taking image; The focusing micromachine is used for driving the focusing gear train, makes mobile image sensor seat (10) go up straight line at moving guide rail (20) and moves, to realize the focusing operation.
4. as claim 2 or 3 described integrated zoom lens, it is characterized in that: also comprise contactless focusing shift position sensor, it links to each other with described focusing mechanism, is used for providing synchronously the moving parameter of mobile image sensor seat (10), uses for automatic/electronic focusing closed-loop control.
5. as claim 1 or 2 or 3 described integrated zoom lens, it is characterized in that: described zoom lens control device comprises that zoom directional tube (2), zoom cam cylinder (3), zoom drive nail (4), zoom parameters sensor (5), zoom micromachine (6), zoom reduction gearing mechanism (7); Zoom drive nail (4) passes zoom cam cylinder (3) and zoom directional tube (2) straight-line groove and is fixed on the varifocal mirror group (1); Zoom micromachine (6) is installed on the zoom directional tube (2), and zoom reduction gearing mechanism (7) is integrated on the zoom directional tube (2), and zoom micromachine (6) drives zoom cam cylinder (3) rotation through zoom reduction gearing mechanism (7); In zoom cam cylinder (3) when rotation, drive zoom and drive nail (4), zoom drive that nail (4) drives varifocal mirror group (1) and under the restriction of zoom directional tube (2) straight trough straight line move.
6. integrated zoom lens as claimed in claim 5 is characterized in that: have groove/fin on varifocal mirror group (1) periphery, this groove is done minim gap with the fin/groove on zoom directional tube (2) correspondence position and is cooperated.
7. as claim 5 or 6 described integrated zoom lens, it is characterized in that: described zoom lens control device also comprises contactless zoom parameters sensor (5), be used for synchronously providing zoom parameters, use for automatic/power zoom closed-loop control and digital filming equipment calibration inner parameter.
8. as claim 5 or 6 described integrated zoom lens, it is characterized in that: have groove/fin on mobile image sensor seat (10) periphery, they cooperate with fin/groove fine clearance on the interior correspondence position of zoom directional tube (2); Focusing cam canister (12) is enclosed within zoom positioning tube (2) outside, thereby is that straight line moves in zoom positioning tube (2) when making mobile image sensor seat (10) mobile.
9. as claim 5 or 6 described integrated zoom lens, it is characterized in that: described zoom micromachine (6), zoom reduction gearing mechanism (7), focusing micromachine and focusing reduction gearing mechanism are integrated on the zoom directional tube (2); Described Zoom finder is fixed on the zoom directional tube (2).
10. as claim or 6 described integrated zoom lens, it is characterized in that: comprise that also the zoom cam cylinder of finding a view (8), view finder move group (9), the zoom cam cylinder of finding a view (8) is gone up twice fin location and rotation synchronously through zoom cam cylinder (3); The Zoom finder module is installed on the platform that zoom directional tube (2) provides; The upward outstanding cam rib of the zoom cam cylinder (8) of finding a view is positioned at Zoom finder and moves group (9) clamp-shape groove; In zoom cam cylinder (2) when rotation, drive the zoom cam cylinder (8) of finding a view synchronously, and the zoom cam cylinder of finding a view (8) cam rib drives Zoom finder synchronously and moves group (9) realization synchronous zoom and find a view.
11. integrated zoom lens as claimed in claim 10, it is characterized in that: location fin and recessed rib are set respectively at zoom cam cylinder (3) and the zoom cam cylinder of finding a view (8), so that guarantee the Zoom finder synchronous zoom during rotation zoom cam cylinder (3), the vertical string of the zoom cam cylinder (8) that prevents to find a view is moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031398057A CN1300616C (en) | 2003-07-15 | 2003-07-15 | Integrative zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031398057A CN1300616C (en) | 2003-07-15 | 2003-07-15 | Integrative zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570689A true CN1570689A (en) | 2005-01-26 |
| CN1300616C CN1300616C (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031398057A Expired - Fee Related CN1300616C (en) | 2003-07-15 | 2003-07-15 | Integrative zoom lens |
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| Country | Link |
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| CN (1) | CN1300616C (en) |
Cited By (12)
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| CN101945221A (en) * | 2009-07-06 | 2011-01-12 | 佳能株式会社 | Image pickup apparatus and control method thereof |
| CN101551501B (en) * | 2008-03-31 | 2011-01-19 | 香港理工大学 | Mechanical zoom lens device |
| CN102547084A (en) * | 2011-09-22 | 2012-07-04 | 上海兴禄科技实业有限公司 | Camera capable of achieving long-range shooting and super macro shooting |
| CN105991911A (en) * | 2016-07-29 | 2016-10-05 | 广东欧珀移动通信有限公司 | Control method, control device and electronic device |
| CN106101557A (en) * | 2016-07-29 | 2016-11-09 | 广东欧珀移动通信有限公司 | Lens zoom method and apparatus and mobile terminal |
| CN106461174A (en) * | 2014-05-29 | 2017-02-22 | 美蓓亚株式会社 | Lighting device |
| CN107422450A (en) * | 2017-09-26 | 2017-12-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of CCD focus adjusting mechanisms for visible optical imaging system |
| WO2018019011A1 (en) * | 2016-07-29 | 2018-02-01 | 广东欧珀移动通信有限公司 | Macro shooting processing method and apparatus, and terminal device |
| CN109254405A (en) * | 2018-10-31 | 2019-01-22 | 深圳多哚新技术有限责任公司 | Optical assembly of head-mounted equipment |
| CN112241054A (en) * | 2019-07-17 | 2021-01-19 | 信泰光学(深圳)有限公司 | Zoom system |
| CN113391425A (en) * | 2021-06-07 | 2021-09-14 | Tcl通讯（宁波）有限公司 | Zoom lens, periscopic lens and mobile phone camera |
| WO2022206955A1 (en) * | 2021-04-02 | 2022-10-06 | 深圳市大疆创新科技有限公司 | Mount and camera system |
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| JP3158753B2 (en) * | 1992-12-29 | 2001-04-23 | キヤノン株式会社 | Lens drive |
| JP3380049B2 (en) * | 1994-06-21 | 2003-02-24 | ペンタックス株式会社 | Imaging device |
| JP3462309B2 (en) * | 1995-07-20 | 2003-11-05 | オリンパス光学工業株式会社 | Imaging device |
| US6339681B1 (en) * | 1998-10-22 | 2002-01-15 | Canon Kabushiki Kaisha | Optical apparatus |
| CN1395145A (en) * | 2001-07-06 | 2003-02-05 | 雅客设计有限公司 | Control system of zoom lens of digital camera |
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- 2003-07-15 CN CNB031398057A patent/CN1300616C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101551501B (en) * | 2008-03-31 | 2011-01-19 | 香港理工大学 | Mechanical zoom lens device |
| CN101945221B (en) * | 2009-07-06 | 2013-10-09 | 佳能株式会社 | Image pickup apparatus and control method thereof |
| CN101945221A (en) * | 2009-07-06 | 2011-01-12 | 佳能株式会社 | Image pickup apparatus and control method thereof |
| CN102547084A (en) * | 2011-09-22 | 2012-07-04 | 上海兴禄科技实业有限公司 | Camera capable of achieving long-range shooting and super macro shooting |
| US10215369B2 (en) | 2014-05-29 | 2019-02-26 | Minebea Mitsumi Inc. | Lighting apparatus |
| CN106461174B (en) * | 2014-05-29 | 2020-01-17 | 美蓓亚株式会社 | Lighting device |
| CN106461174A (en) * | 2014-05-29 | 2017-02-22 | 美蓓亚株式会社 | Lighting device |
| CN105991911A (en) * | 2016-07-29 | 2016-10-05 | 广东欧珀移动通信有限公司 | Control method, control device and electronic device |
| WO2018018959A1 (en) * | 2016-07-29 | 2018-02-01 | 广东欧珀移动通信有限公司 | Lens zooming method and device, and mobile terminal |
| WO2018019011A1 (en) * | 2016-07-29 | 2018-02-01 | 广东欧珀移动通信有限公司 | Macro shooting processing method and apparatus, and terminal device |
| CN106101557B (en) * | 2016-07-29 | 2018-03-30 | 广东欧珀移动通信有限公司 | Lens zoom method and apparatus and mobile terminal |
| CN106101557A (en) * | 2016-07-29 | 2016-11-09 | 广东欧珀移动通信有限公司 | Lens zoom method and apparatus and mobile terminal |
| CN107422450A (en) * | 2017-09-26 | 2017-12-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of CCD focus adjusting mechanisms for visible optical imaging system |
| CN109254405A (en) * | 2018-10-31 | 2019-01-22 | 深圳多哚新技术有限责任公司 | Optical assembly of head-mounted equipment |
| CN112241054A (en) * | 2019-07-17 | 2021-01-19 | 信泰光学(深圳)有限公司 | Zoom system |
| WO2022206955A1 (en) * | 2021-04-02 | 2022-10-06 | 深圳市大疆创新科技有限公司 | Mount and camera system |
| CN113391425A (en) * | 2021-06-07 | 2021-09-14 | Tcl通讯（宁波）有限公司 | Zoom lens, periscopic lens and mobile phone camera |
| CN113391425B (en) * | 2021-06-07 | 2022-11-04 | Tcl通讯（宁波）有限公司 | Zoom lens, periscopic lens and mobile phone camera |
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