CN100451814C - Telescopic lens set structure with variable volumn lens and its retracting method - Google Patents
Telescopic lens set structure with variable volumn lens and its retracting method Download PDFInfo
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- CN100451814C CN100451814C CNB2006100009340A CN200610000934A CN100451814C CN 100451814 C CN100451814 C CN 100451814C CN B2006100009340 A CNB2006100009340 A CN B2006100009340A CN 200610000934 A CN200610000934 A CN 200610000934A CN 100451814 C CN100451814 C CN 100451814C
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- lens
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- transparent fluid
- camera group
- accommodation space
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Abstract
A telescopic camera lens set with volume-variable lens consists of optical lens, volume variable lens formed by lens film and containing space as well as transparent fluid contained in said space, fluid pump, connection pipe and storage tank. It is featured as folding said volume-variable lens by atmosphere when transparent fluid is pumped from containing space to storage tank in order to make telescopic lens set be at minimum thickness and making telescopic lens set be configured coaxially with optical lens in order to form shooting optical unit when said fluid is pumped back to said containing space.
Description
Technical field
The present invention relates to a kind of structure of dolly camera group, particularly a kind of dolly camera group structure and telescopic method thereof that uses the variable-volume lens and form photographic optical system.
Background technology
The use of lens group is all very frequent in the fields such as mobile phone of traditional camera, digital camera, tool camera function, also is one of topmost part; Under the trend of existing market, often require compact, for lens group that can't changeable volume is a test, therefore, how digital camera being dwindled is manufacturer's issue to be resolved all the time, and especially if the size of lens group can be dwindled, that is as good as is one to benefit greatly, based on this, relevant patented claim promptly occurs like the mushrooms after rain.
For example Bin Deshi incorporated company (PENTAX) is in No. 697808982 patent of the U.S. " RETRACTABLE LENS SYSTEM AND METHOD OF RETRACTING ARETRACTABLE LENS SYSTEM " of bulletin on Dec 20th, 2005, it is a kind of dolly camera group, comprise a plurality of optical modules, when using this dolly camera group, these a plurality of optical modules can be positioned on the common light axle all, when this dolly camera group system is positioned at a retracted position, a movable-component in these a plurality of optical modules can be moved to the place, shift position of this common optical axis outside, and one of them assembly then can be distinguished mobile backwards in the remaining component of this movable-component and these a plurality of optical modules.
Design about this patent, please refer to Fig. 1, its flexible zoom lens 10 is arranged in the digital camera, and comprise first lens combination 11, second lens combination 12, the 3rd lens combination 13, low pass filter 14, and image sensor 15, this flexible zoom lens 10 in use, first, the second or the 3rd lens combination 11,12, at least one can advance coaxially or retreat to adjust mutual distance in 13, make and to be amplified or dwindle image to image sensor 15, and when this digital camera (not user mode) when placing, first, a lens combination in second and third lens combination 11,12,13, promptly can move away on the axis of aforementioned adjustment focal length, form and other lens combination state side by side, and diminished by to be allowed the gross thickness of digital camera, in the embodiment of this patent, second lens combination 12 is moved and places in the placing room 16 among the figure, reach the purpose that reduces the digital camera gross thickness.
Summary of the invention
Though prior art is reduced the thickness of dolly camera group when placing, and then reach the purpose that reduces the digital camera gross thickness, but, because many travel mechanisms go up are used in its design, make in the global design quite complicatedly, and part is many, cost is high and easy fault, for solving this shortcoming, the present invention proposes a kind of dolly camera group structure with variable-volume lens, and the contractile characteristic of sharp its variable-volume lens gets so that the thickness of camera when folding greatly reduces.
The dolly camera group structure that the present invention proposes with variable-volume lens, can be applicable to traditional camera, digital camera, video camera or have on the mobile phone of camera function, it comprises the optical mirror slip and the variable-volume lens of arranged coaxial, wherein the variable-volume lens comprise lens coating and are coated the accommodation space that forms by lens coating, and the communicating pipe of disposing storage tank and connection accommodation space and storage tank, make that the transparent fluid in accommodation space is circulated between accommodation space and the storage tank, therefore, when a fluid pump is evacuated to accommodation space with transparent fluid by storage tank, the variable-volume lens are promptly heaved, and because of with the optical mirror slip arranged coaxial, promptly form a photographic optical system, have the function of dolly camera group; And when fluid pump is drawn to storage tank with transparent fluid by accommodation space, then the variable-volume lens promptly can shrink and be folding state, make the less thick of variable-volume lens, and optical mirror slip can be retracted also, makes the thickness of whole camera or video camera can diminish many relatively.
Aforementioned lens coating is made of optical surface and folding face, wherein optical surface promptly is and the staggered face of coaxial cable (coaxial cable of variable-volume lens and optical mirror slip arranged coaxial), the face that folding face then cannot not be staggered, and be to make the variable-volume lens have the optical function of optical mirror slip, this optical surface is a hard smooth surface, even when the variable-volume lens are in folding state, still keep original shape and shiny surface, folding face then is when folding state, folding also dwindles the whole volume and the thickness of variable-volume lens, is different with the material of folding face with optical surface.
For more convenient in the optical design that makes the variable-volume lens, so it is promptly quite important that the transparent fluid material in the accommodation space is selected, need quite with the refractive index of lens coating (being optical surface), both differ need be lower than 10% design that just is easy to whole photographic optical system at least; The selection of this transparent fluid can utilize other material such as normal matching fluid of using (Matching Oil) or inert gas on the present optics.
In addition, in order to make the variable-volume lens when supporting out, can on default position and track, move, and further carried out the adjustment of focal length, these variable-volume lens are provided with a framework, and set firmly the periphery of variable-volume lens, this framework also has the mobile route of a guide rail limiting frame, make the variable-volume lens in the middle of the process that charges into and extract out transparent fluid, all has certain pattern, and after being full of transparent fluid, by the restriction of framework and guide rail, suitably adjusted the relative position with optical mirror slip, and then reached the purpose of adjusting the photographic optical system focal length.
Moreover, in order to make the volume minimum of variable-volume lens when the folding, one concora crush mechanism also can be set, and start when transparent fluid flows to storage tank, with variable-volume lens concora crush, make transparent fluid can flow to storage tank fully, and pressing variable-volume lens, thus, the thickness of variable-volume lens is promptly minimum, and the volume of whole camera or video camera is also minimum.
Secondly, the present invention proposes a kind of method of condensation dolly camera group, corresponding with the dolly camera group structure of aforementioned tool variable-volume lens, this dolly camera group comprises optical mirror slip and variable-volume lens, the variable-volume lens comprise lens coating, by accommodation space and transparent fluid that this lens coating coated, the method for this condensation dolly camera group comprises: (1) detaches this accommodation space with this transparent fluid; And these variable-volume lens of (2) pressing.Method can be reduced to minimum with the thickness of variable-volume lens effectively when not using thus.
And with regard to the condensation of whole dolly camera group action, move between image end and image end, so this method of condensing has also comprised (3) this optical frames has been moved towards this image end; And move these variable-volume lens (4) towards this image end.Cause the thickness of whole dolly camera group all greatly to reduce.
In addition, the present invention also proposes the method for an extension dolly camera group, this dolly camera group comprises optical mirror slip and variable-volume lens, the variable-volume lens comprise lens coating, by accommodation space and transparent fluid that this lens coating coated, this dolly camera group system is between image end and image end simultaneously, and this method of upholding the dolly camera group comprises: (1) moves this optical mirror slip towards this image end; (2) this transparent fluid is charged into this accommodation space, this lens coating is heaved; And (3) move these variable-volume lens and make these variable-volume lens and this optical mirror slip be the coaxial state that is provided with, and the formation photographic optical system.Uphold the method for dolly camera group thus, can form photographic optical system, and have its effect.
In sum,, be able to effectively solve the problem of existing skill, reach the purpose that the thickness that makes dolly camera group and whole photographic optical system reduces, have novelty, creativeness and practicality by technological means of the present invention.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is existing dolly camera group structural representation;
Fig. 2 is in the structural representation of stretched condition for dolly camera group of the present invention;
Fig. 3 is in the structural representation of condensed state for dolly camera group of the present invention;
Fig. 4 is the structural representation of variable-volume lens of the present invention;
Fig. 5 is another embodiment of dolly camera group of the present invention.
The primary clustering symbol description
10 flexible zoom lens 11,12,13 first, second, third lens combination
14 low pass filters, 15 image sensors
16 placing rooms, 20,21 optical mirror slips
30,38 variable-volume lens, 31 lens coatings
32 accommodation spaces, 33 transparent fluids
35a, 35b optical surface 36 folding faces
37 coaxial cables, 40,42 storage tanks
46,49 communicating pipes of 45,47 fluid pumps
50a, 50b, 50c, 50d framework
52a, 52b, 52c, 52d framework
55a, 55b concora crush mechanism
60a, the 60b guide rail
Embodiment
At first please refer to Fig. 2, comprise optical mirror slip 20 for dolly camera group structure of the present invention among the figure, 21, variable-volume lens 30, storage tank 40, fluid pump 45 and communicating pipe 46, wherein variable-volume lens 30 are reached by lens coating 31 and are made of the accommodation space 32 that lens coating 31 coated, and in accommodation space 32, be provided with transparent fluid 33, communicating pipe 46 then is to connect accommodation space 32 and storage tank 40, and supply transparent fluid 33 therebetween to circulate, 45 of fluid pumps are to be used for transparent fluid 33 is evacuated to accommodation space 32 from storage tank 40, or transparent fluid 33 is evacuated to storage tank 40 by accommodation space 32, therefore, when transparent fluid 33 is pumped down to storage tank 40, variable-volume lens 30 promptly can form folding state (please refer to Fig. 3) because of contracting in the atmospheric pressure; And when transparent fluid 33 was pumped down to accommodation space 32, variable-volume lens 30 promptly were support state, and were arranged coaxial with optical mirror slip 20,21, and formed photographic optical system.
Folding and when upholding, have the function of photographic optical system smoothly when making 30 foldings of variable-volume lens, so be provided with framework 50a, 50b, 50c in addition, 50d, and guide rail 60a, 60b, framework 50a, 50b, 50c, 50d is in order to being fixedly arranged on the periphery of variable-volume lens, and guide rail 60a, 60b then is limiting frame 50a, 50b, 50c, the mobile route of 50d, for example, when 30 foldings of variable-volume lens or when supporting, it is guided the folding of whole variable-volume lens 30 and supports process, simultaneously, and when this dolly camera group is positioned at support open position (treating photography state), it is adjusted focal length for making photographic optical system, so guide rail 60a thus, 60b also can make the dolly camera group adjust the relative position of variable- volume lens 30 and 20,21 of optical mirror slips smoothly.
In addition, in order to make the volume minimum of variable-volume lens 30 when the folding, one 55a of concora crush mechanism also can be set, 55b, and start when transparent fluid 33 flows to storage tank 40, with variable-volume lens 30 concora crush, make transparent fluid 33 can flow to storage tank fully, and then flatten variable-volume lens 30, thus, the thickness of variable-volume lens 30 is promptly minimum, and the volume of whole camera or video camera is also minimum
Structure about variable-volume lens 30, see also Fig. 4, this lens coating 31 is by optical surface 35a, 35b and folding face 36 constitutes, aforementioned optical surface 35a, 35b is the face that interlocks with coaxial cable 37, folding face 36 then is except optical surface 35a, other surface outside the 35b, this optical surface 35a, 35b is with folding face 36 because because of its function is different, and selecting for use of its material is promptly different, because of optical surface 35a, 35b occupies considerable role in photographic optical system, so optical surface 35a, no matter 35b all keeps a smooth surface in 30 foldings of variable-volume lens or support state, and has the refractive index that is close with transparent fluid 33 in the accommodation space 32, both refractive indexes differ with no more than 10% to preferable, consider the design of whole photographic optical system, selecting for use of aforementioned transparent fluid also can be adopted other materials such as normal matching fluid of using (MatchingOil) of optical field or inert gas simultaneously.36 in aforementioned folding face produces the folding effect when transparent fluid 32 flow to storage tank 40, make the thickness of variable-volume lens 30 reach minimum.
Secondly, see also Fig. 5, it is another embodiment of the present invention figure, and dolly camera group of the present invention adopts two variable- volume lens 30,38 and an optical mirror slip 20 shown in the figure, two variable- volume lens 30,38 also dispose two storage tanks 40,42, fluid pump 45,47, communicating pipe 46,49 and framework 50a, 50b, 50c, 50d, 52a, 52b, 52c, 52d, certain this storage tank 40,42 setting also can be designed to single storage tank and single fluid pump, and its space of refluxing for transparent fluid 33 needs the accommodation space sum more than or equal to variable- volume lens 30,38, the setting of two variable-volume lens thus also can be reached the purpose that the thickness of dolly camera group is reduced and forms photographic optical system.
In addition, the present invention also proposes to uphold and the method for this dolly camera of condensation group, wherein this dolly camera group comprises (please consulting Fig. 2 again) optical mirror slip 20,21 and variable-volume lens 30, variable-volume lens 30 comprise lens coating 31, the accommodation space 32 that is coated by this lens coating 31, and transparent fluid 33, and whole extension and condensation action are moved between image end (being the left side of optical mirror slip 21 among Fig. 2) and image end (being the right side of optical mirror slip 20 among Fig. 2), and wherein the method for this condensation dolly camera group comprises: (1) detaches this accommodation space 32 with this transparent fluid 33; And these variable-volume lens 30 of (2) pressing.Method can be reduced to minimum with the thickness of variable-volume lens effectively when not using thus, and is that the thickness of whole dolly camera group all can be reduced, so add two steps: move this optical frames (3) towards this image end; And move these variable-volume lens 30 (4) towards this image end.
About aforementioned extension method, it comprises the steps: that (1) mobile this optical mirror slip 20,21 is towards this image end; (2) this transparent fluid 33 is charged into this accommodation space 32, this lens coating 31 is heaved; And (3) move these variable-volume lens 30 and make these variable-volume lens 30 be the coaxial state that is provided with this optical mirror slip 20,21, and form photographic optical system.Uphold the method for dolly camera group thus, can form photographic optical system, and have its effect.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (12)
1, a kind of dolly camera group structure is characterized in that, comprising:
At least one optical mirror slip;
At least one variable-volume lens comprise a lens coating and by accommodation space that described lens coating coated;
One storage tank contains transparent fluid;
At least one communicating pipe connects described accommodation space and described storage tank, and transparent fluid is circulated between described accommodation space and the described storage tank; And
One fluid pump, selectivity is moved to described transparent fluid described accommodation space or described transparent fluid is moved to described storage tank by described accommodation space by described storage tank;
Wherein, when described transparent fluid was positioned at described accommodation space, described optical mirror slip and described variable-volume lens were the arranged coaxial state, and form a photographic optical system, when described transparent fluid was positioned at described storage tank, described variable-volume lens were flat form;
Also comprise a framework, described framework is fixedly arranged on described variable-volume lens periphery, and limits described variable-volume lens and described optical mirror slip is the arranged coaxial state when described transparent fluid is positioned at described accommodation space; And a concora crush mechanism, described concora crush mechanism when described accommodation space flow to described storage tank, auxiliary flattens described variable-volume lens at described transparent fluid.
2, dolly camera group structure according to claim 1 is characterized in that, described transparent fluid is a matching fluid.
3, dolly camera group structure according to claim 1 is characterized in that, described transparent fluid is an inert gas.
4, dolly camera group structure according to claim 1, it is characterized in that, also comprise a guide rail, when described guide rail circulates between described accommodation space and the described storage tank at described transparent fluid, limit the mobile route of described framework, and determine the relative position of described variable-volume lens and described optical mirror slip.
5, dolly camera group structure according to claim 1, it is characterized in that, the described lens coating of described variable-volume lens comprises an optical surface and a folding face, wherein said optical surface is the staggered face of coaxial cable during with described arranged coaxial, the face that coaxial cable when folding face then is coaxial the preparation is staggered, wherein said optical surface and described folding face are different material.
6, dolly camera group structure according to claim 5 is characterized in that, described optical surface when described accommodation space flows to described storage tank, is kept a smooth surface at described transparent fluid.
7, dolly camera group structure according to claim 5 is characterized in that described folding face when described accommodation space flows to described storage tank, is folding state at described transparent fluid.
8, dolly camera group structure according to claim 5 is characterized in that, described optical surface is a convex surface.
9, dolly camera group structure according to claim 5 is characterized in that, described optical surface is a concave surface.
10, dolly camera group structure according to claim 5 is characterized in that, described transparent fluid is a matching fluid.
11, dolly camera group structure according to claim 5 is characterized in that, described transparent fluid is an inert gas.
12, dolly camera group structure according to claim 5 is characterized in that the refractive index of described transparent fluid and described optical surface differs within 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100009340A CN100451814C (en) | 2006-01-12 | 2006-01-12 | Telescopic lens set structure with variable volumn lens and its retracting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100009340A CN100451814C (en) | 2006-01-12 | 2006-01-12 | Telescopic lens set structure with variable volumn lens and its retracting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000450A CN101000450A (en) | 2007-07-18 |
| CN100451814C true CN100451814C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100009340A Expired - Fee Related CN100451814C (en) | 2006-01-12 | 2006-01-12 | Telescopic lens set structure with variable volumn lens and its retracting method |
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| CN (1) | CN100451814C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117854A1 (en) * | 2008-03-27 | 2009-10-01 | Industrial Technology Research Institute | Liquid zoom lens |
| WO2018076153A1 (en) * | 2016-10-25 | 2018-05-03 | 博立多媒体控股有限公司 | Gas lens |
| CN108111644A (en) * | 2017-11-30 | 2018-06-01 | 努比亚技术有限公司 | A kind of medium refraction index variable optical imaging device and its mobile terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556374A (en) * | 1978-06-29 | 1980-01-17 | Matsushita Electric Ind Co Ltd | Variable focus lens |
| JPS6167014A (en) * | 1984-09-10 | 1986-04-07 | Canon Inc | Variable aberration lens |
| JPH01166004A (en) * | 1987-12-22 | 1989-06-29 | Fuji Photo Film Co Ltd | Optical element |
| JPH01166003A (en) * | 1987-12-22 | 1989-06-29 | Fuji Photo Film Co Ltd | Optical element |
| JPH06265703A (en) * | 1993-03-13 | 1994-09-22 | Ricoh Co Ltd | Flexible lens barrel with built-in liquid lens |
| CN1113011A (en) * | 1993-10-20 | 1995-12-06 | 大宇电子株式社 | Optical system for use in a video camera |
| US20030156832A1 (en) * | 2002-02-21 | 2003-08-21 | Pentax Corporation | Retractable lens system and method of retracting a retractable lens system |
| CN2608997Y (en) * | 2003-01-22 | 2004-03-31 | 张孟杰 | Varifocus lens |
-
2006
- 2006-01-12 CN CNB2006100009340A patent/CN100451814C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS556374A (en) * | 1978-06-29 | 1980-01-17 | Matsushita Electric Ind Co Ltd | Variable focus lens |
| JPS6167014A (en) * | 1984-09-10 | 1986-04-07 | Canon Inc | Variable aberration lens |
| JPH01166004A (en) * | 1987-12-22 | 1989-06-29 | Fuji Photo Film Co Ltd | Optical element |
| JPH01166003A (en) * | 1987-12-22 | 1989-06-29 | Fuji Photo Film Co Ltd | Optical element |
| JPH06265703A (en) * | 1993-03-13 | 1994-09-22 | Ricoh Co Ltd | Flexible lens barrel with built-in liquid lens |
| CN1113011A (en) * | 1993-10-20 | 1995-12-06 | 大宇电子株式社 | Optical system for use in a video camera |
| US20030156832A1 (en) * | 2002-02-21 | 2003-08-21 | Pentax Corporation | Retractable lens system and method of retracting a retractable lens system |
| CN2608997Y (en) * | 2003-01-22 | 2004-03-31 | 张孟杰 | Varifocus lens |
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| CN101000450A (en) | 2007-07-18 |
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Granted publication date: 20090114 Termination date: 20190112 |