CN2881716Y - Collapsible lens system and turn-over type lens accepting mechanism - Google Patents
Collapsible lens system and turn-over type lens accepting mechanism Download PDFInfo
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- CN2881716Y CN2881716Y CN200520106994.1U CN200520106994U CN2881716Y CN 2881716 Y CN2881716 Y CN 2881716Y CN 200520106994 U CN200520106994 U CN 200520106994U CN 2881716 Y CN2881716 Y CN 2881716Y
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- lens
- lens combination
- lens system
- retractable
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Abstract
A collapsible lens system and turn-over type lens accepting mechanism includes a first, a second and a third lens sets and CCD which form a photography optical system. The turn-over type lens accepting mechanism includes a movable frame of the second lens set and an accepting frame of the second lens set capable of rotating and accepted in the movable frame through a revolving axis. Both ends of the revolving axis are provided with a torsion spring. When the collapsible lens system retracts to the accepting status, second lens set can be deflected to the radial acceptance position on the external side of the same photography optical axis of the photography optical system, the optical axis vertical to the photography optical axis at the position, so as to make the collapsible lens system small in size and compacted in structure at the retraction position. Conversion of second lens set from accepting status to working status can be realized by the elasticity recovery stress twisting the spring.
Description
Technical field
The utility model relates to a kind of retractable lens system and optical module accommodating mechanism thereof, particularly about a kind of retractable lens system and convertible lens accommodating mechanism thereof, this convertible lens accommodating mechanism can be received into a position of departing from mutually with the common camera axis of photographic optical system to the part lens when scalable camera lens system is withdrawn fully.
Background technology
Scalable photography (imaging) camera lens of optical devices such as digital camera all belongs to zoom lens usually, promptly by many arrangements of mirrors group toward each other the change of position reach the purpose of zoom.This class camera lens fuselage of can withdrawing fully when optical devices cut out then stretches out fuselage when opening, therefore for the bigger fixedly zoom lens of volume, it has frivolous, portable advantage.In existing scalable phtographic lens, wherein one or more groups movably mirror group only can move along the direction of camera axis.Shown in first figure, this retractable lens is after withdrawal, and therefore its length can not also can't further reduce the thickness of fuselage less than the gross thickness of all optical modules.
In view of this, industry has proposed a kind of design that is disclosed as U.S. Patent number 5166716 and Application No. 20030156832 again.In these designs, when phtographic lens was withdrawn fully, the part lens can be received to a position of departing from the common optical axis of photographic optical system.The optical axis of these part lens parallels with the common optical axis of optical system when reception position.This design can be shortened the length of fuselage, but for the type of light and thin type, it highly but might increase to some extent than original design.In addition, the structure of the lens accommodating mechanism of these designs and drive all comparatively complicated, assemble loaded down with trivial details, thereby make the cost increase.
Therefore, for overcoming the defective that above-mentioned prior art exists, be necessary to provide a kind of optical module accommodating mechanism of innovation, it can reduce the length and the thickness of extension type optical devices, and reaching frivolous, short and small purpose, and it is simple in structure, assembling is easy.
Summary of the invention
Fundamental purpose of the present utility model is to provide a kind of convertible lens accommodating mechanism that is used for retractable lens system, this convertible accommodating mechanism can be received into a position of departing from mutually with the common camera axis of photographic optical system to the part lens when retractable lens system is withdrawn fully, thereby makes retractable lens system short and small, compact conformation of size when advanced position.
Another purpose of the present utility model is to provide a kind of convertible lens accommodating mechanism that is used for retractable lens system, and its one-piece construction is simple, assembling is easy.
Another purpose of the present utility model is to provide a kind of retractable lens system with convertible lens accommodating mechanism, and it can stretch out or bounce back as required, short and small, the compact conformation of its size when advanced position.
For achieving the above object, the utility model retractable lens system and convertible lens accommodating mechanism thereof comprise first, second, third lens combination and the CCD that constitutes photographic optical system; This convertible lens accommodating mechanism comprises that the second lens combination activity box and second lens combination that is housed in rotationally in the second lens combination activity box by the single-revolution axle accommodate frame.The revolving shaft two ends are provided with torsionspring.When retractable lens system bounces back in the process of receiving state backward, the second lens combination activity box is corresponding to be moved backward with close CCD bearing, the preceding transverse plane that makes second lens combination accommodate the arc surface of docking section of the frame contact site corresponding with the CCD bearing contacts, thereby make second lens combination accommodate the radially reception position that frame is deflected the common camera axis outside that is positioned at photographic optical system, the optical axis that is contained in second lens combination in it when this position and camera axis perpendicular.Like this, can make retractable lens system short and small, compact conformation of size when advanced position.Second lens combination, can be reached by the elastic-restoring force of torsionspring to conversion of operation state by receiving state.
Compared with prior art, the convertible lens accommodating mechanism that the utility model is used for retractable lens system has adopted a kind of deflection and bounce device, and it is simple in structure, assembling is easy, start is smooth and easy.When retractable lens system bounces back according to need, second lens combination wherein can be deflected the radially reception position in the common optical axis outside that is positioned at photographic optical system by this convertible lens accommodating mechanism, and its optical axis when reception position radially and the common light axle perpendicular, thereby make retractable lens system short and small, compact conformation of size when advanced position.When being applied on the camera, can make the compact overall structure of camera, thereby comply with the compact trend of present optical devices requirement.
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of camera when the camera lens retracted state with an existing retractable lens system, and wherein all lens combination are positioned on the common camera axis of photographic optical system.
Fig. 2 is the structural representation of camera when camera lens stretches out state with the utility model retractable lens system, and wherein all lens combination are positioned on the common camera axis of photographic optical system.
Fig. 3 is the structural representation of camera when the camera lens retracted state with the utility model retractable lens system, and wherein second lens combination is accommodated in the radial outside of the common camera axis of photographic optical system.
Fig. 4 is the view of the convertible lens accommodating mechanism of the utility model when the camera lens shown in second figure stretches out state.
The synoptic diagram that Fig. 5 engages with the CCD bearing for the convertible lens accommodating mechanism of the utility model.
Fig. 6 is the illustrative view of the convertible lens accommodating mechanism of the utility model.
Fig. 7 is another illustrative view of the convertible lens accommodating mechanism of the utility model, and wherein, for clarity sake, the second lens combination activity box is removed.
Fig. 8 be the convertible lens accommodating mechanism of the utility model when the camera lens retracted state shown in the 3rd figure view and with the location diagram of other optical module.
Embodiment
Relevant detailed description of the present utility model and technology contents, existing as follows with regard to accompanying drawings:
See also the structural representation of the camera with the utility model retractable lens system 1 when camera lens stretches out state shown in second figure.By this figure as seen, at work (photography) state that camera lens stretches out, all lens combination all are positioned on the common camera axis Z0 of photographic optical system.When the utility model retractable lens system 1 was in inoperative (taking in) state of retraction, shown in the 3rd figure, the second lens combination L2 wherein was accommodated in the radial outside of common camera axis Z0, and its optical axis Z2 is perpendicular to common camera axis Z0.Like this, can reduce the size of the utility model retractable lens system 1, thus the corresponding size that reduces to adopt the camera of this retractable lens system 1.
The conversion of the above-mentioned second lens combination L2 from the working position that is positioned at common camera axis Z0 to the reception position that departs from common camera axis Z0 can realize by the start of convertible lens accommodating mechanism 2.This convertible lens accommodating mechanism 2 cooperates the retraction of retractable lens system 1 or stretches out action and the corresponding upset or the operating principle of upspringing will be described in conjunction with structure and illustrative view shown in the 4th figure to the seven figure, sees for details hereinafter.
In the present embodiment, the convertible lens accommodating mechanism 2 of the utility model is to be used to take in the second lens combination L2.Shown in the 4th figure, second lens combination that convertible lens accommodating mechanism 2 comprises the second lens combination activity box 21 and is used to accommodate the second lens combination L2 is accommodated frame 22.The second lens combination activity box 21 can corresponding retractable lens system 1 stretch out or bounce back action and move forward and backward, with away from or near CCD (Charge Couple Device, charge-coupled device) bearing 3.Second lens combination is accommodated frame 22 and is arranged at rotationally in the second lens combination activity box 21.One shutter unit 4 is located at second lens and is accommodated on the frame 22, and in the time of in working order, it is between the first lens combination L1 and the second lens combination L2.
The second lens combination activity box 21 is a circular ring structure, comprises wheel rim 210, first resettlement section 211 and second resettlement section 212.First resettlement section 211 and second resettlement section 212 be respectively applied for accommodate second lens combination that is positioned at working position (the 4th figure) and reception position (the 8th figure) accommodate frame 22 and on shutter unit 4.Second resettlement section 212 is provided with a butting section 2120 and an opening 2121.Wheel rim 210 is provided with a through hole 2100 and a kerve 2101.When retractable lens system 1 is in the duty of stretching out forward, shown in the 4th figure, from CCD bearing 3 being used to of extending forward the expose free end of PWB shell fragment 5 of control pass the opening 2121 of second resettlement section 212 forward and electrically engage with shutter unit 4, between control circuit (not shown) and shutter unit 4, to set up electrical connection.
See also the 5th figure, second lens combination is accommodated frame 22 and is provided with two installation portions 220 and is used to install single-revolution axle 221.The two ends of this revolving shaft 221 stretch out installation portion 220, in the corresponding set mounting hole of the inside surface of the wheel rim 210 that is mounted on the second lens combination activity box, are located at rotationally in the second lens combination activity box 21 thereby make second lens combination accommodate frame 22.But second lens combination is accommodated frame 22 and the interior second lens combination L2 wraparound rotating shaft 221 thereof radially changing between the reception position shown in axial work (photography) position shown in second figure and the 3rd figure.Wherein, in the axial working position shown in second figure, the common camera axis Z0 of the photographic optical system that the optical axis Z2 of the second lens combination L2 and lens combination L1, L2, L3 and CCD are formed coincides; At the radially reception position shown in the 3rd figure, the optical axis Z2 of the second lens combination L2 is then perpendicular with camera axis Z0.
Second lens combination is accommodated the installation portion 220 of frame 22 and is made up of a butting section 2201 and a sleeve part 2202, and the size of butting section 2201 is greater than sleeve part 2202.One torsionspring 224 is sheathed on this sleeve part 2202, and be positioned at second lens combination and accommodate between the inside surface of wheel rim 210 of the butting section 2201 of frame 22 and the second lens combination activity box 21, so that being provided, the second lens combination L2 is returned to the elastic force of the axial working position shown in second figure from the radially reception position shown in the 3rd figure.Second lens combination is accommodated frame 22 and further is provided with a docking part 222 and against bar 223 at both ends near installation portion 220 parts.The bottom surface 2220 of this docking section 222 is an arc surface.
CCD bearing 3 is provided with the guide bar 30 and the contact site 31 of projection forward on its front surface.Guide bar 30 is in order to guide seesawing of the second lens combination activity box 21.The slab construction that contact site 31 is provided with for contiguous guide bar 30, its preceding transverse plane 310 is in order to contact with arc surface 2220 that second lens combination is accommodated the docking section 222 of frame 22.
Below will describe the start process of the convertible lens accommodating mechanism 2 of the utility model in detail.
When retractable lens system 1 is driven and when camera body 6 stretched out or retract in the fuselage 6, the second lens combination activity box 21 is also corresponding to seesaw, installing second lens are thereon accommodated frame 22 also in company with moving forward and backward.Because of the driving of retractable lens system 1 can be realized by existing technical approach, be not feature of the present utility model place, so do not repeat them here.Shown in the 5th to the 7th figure, move backward with near CCD bearing 3 in retraction direction as the second lens combination activity box 21, then second lens combination arc surface 2220 of accommodating the docking section 222 of frame 22 can contact with the preceding transverse plane 310 of CCD bearing contact site 31, because of the relation of component, make second lens combination accommodate frame 22 together with the shutter unit on it 4 to direction deflection (counter clockwise direction shown in arrow among the 7th figure) away from camera axis Z0.In the deflection, second lens combination is accommodated the arc surface 2220 of docking section 222 of frame 22 successively along the preceding transverse plane 310 and fillet part 311 slippages of CCD bearing contact site 31, until being turned to the radially reception position (shown in the 8th figure) that parallels with camera axis Z0 at last.At this reception position radially, the optical axis Z2 of the second lens combination L2 is vertical mutually with camera axis Z0.The guide bar 30 of CCD bearing 3 and projection 32 are contained in respectively in the through hole 2100 and kerve 2101 of wheel rim 210 of the second lens combination activity box 21.Second lens combination accommodate frame 22 against bar 223 this moment the inner bottom surface with the butting section 2120 of the second lens combination activity box 21 connect; The arc surface 2220 of docking section 222 connects with the side 312 of CCD bearing contact site 31; Thereby make second lens combination accommodate frame 22 and shutter unit 4 is contained in second resettlement section 212 of the second lens combination activity box 21.At this reception position, the two ends pin 2240 that is placed on the torsionspring 224 at revolving shaft 221 two ends is made it close mutually because of reversing, and has a trend of replying along clockwise direction thereby make second lens combination accommodate frame 22.
The 3rd figure knows that the radially reception position that has shown the second lens combination L2 reaches and the position relation of other lens combination.By this figure as seen, under complete retracted state, retractable lens system 1 is placed in the camera body 6 fully, and its front surface is concordant substantially with the front surface of camera body 6.The second lens combination L2 radially retracts in the space, this space is positioned at the radial outside in the retraction space of the first, the 3rd lens combination L1, L3, promptly the second lens combination L2 radially retracts in the axial range, and this scope equals the first, the 3rd lens combination L1, the L3 axial range in camera axis Z0 direction substantially.This upset mode of taking in of the second lens combination L2 can make the contraction in length of retractable lens system 1, thereby has reduced camera body 6 in camera axis Z0 direction, i.e. the thickness of horizontal direction shown in the 3rd figure.Simultaneously, this upset mode of taking in can make the optical axis Z2 of the second lens combination L2 perpendicular at reception position and camera axis Z0, with the optical axis Z2 of the second lens combination L2 is made as the existing design that parallels with camera axis Z0 comparatively speaking at reception position, more can help reducing of camera body 6 height, thereby more meet the trend of miniaturization.
When the second lens combination activity box 21 is driven and travels forward to enter duty, promptly the second lens combination L2 is transformed in the process of the axial working position shown in second figure by the radially reception position shown in the 3rd figure, the arc surface 2220 that second lens combination is accommodated the docking section 222 of frame 22 breaks away from and the engaging of the side 312 of the contact site 31 of CCD bearing 3 gradually, simultaneously the two ends pin 2240 that reversed of torsionspring 224 discharges, and its elastic force makes second lens combination accommodate frame 22 and is returned to the working position on the camera axis Z0 of being positioned at shown in second figure and the 4th figure.
From as can be known aforementioned, in the retractable lens system 1 of present embodiment, the second lens combination L2 retracts to and departs from camera axis Z0, and its optical axis and the perpendicular reception position of camera axis Z0, goes up the radial outside in retraction space to be positioned one first, the axle of the 3rd lens combination L1, L3.This makes the length of retractable lens system 1 reduce a lot, thereby makes also corresponding the reducing of thickness of camera body 6.Simultaneously, also more help reducing of camera body 6 height.This arrangement mode has made full use of having living space of camera inside, thereby makes the camera structure compactness, realizes the purpose of miniaturization.In addition, compared with prior art, the utility model realization part lens are switched to the convertible lens accommodating mechanism 2 of reception position and are guaranteeing start simultaneously smoothly by the working position, and one-piece construction is simple, assembling is easy.
Of particular note, the utility model is not limited to above-mentioned specific embodiment.As, though the second lens combination L2 is as retracting to the radially turning optical module of reception position in the above-described embodiments, also can make any other lens combination or optical module as turning optical module.
The utility model not only may be used on scalable zoom lens, and may be used on telescopic universal focus lens.Use or not during user mode when being in, its lens drum stretches out or retracts in the fuselage from fuselage respectively.
Convertible optical module accommodating mechanism of the present utility model is not only capable of being combined in the digital camera as present embodiment, and is also capable of being combined in other optical devices.
In sum, adopted a kind of deflection and bounce device because the utility model is used for the convertible lens accommodating mechanism of retractable lens system, it is simple in structure, assembling is easy, start is smooth and easy.When retractable lens system bounces back according to need, second lens combination wherein can be deflected the radially reception position in the common optical axis outside that is positioned at photographic optical system by this convertible lens accommodating mechanism, and its optical axis when reception position radially and the common light axle perpendicular, thereby make retractable lens system short and small, compact conformation of size when advanced position.When being applied on the camera, can make the compact overall structure of camera, thereby comply with the compact trend of present optical devices requirement.
Claims (20)
1, a kind of retractable lens system has a plurality of optical modules, it is characterized in that: when retractable lens system was in running order, described all a plurality of optical modules were positioned on the common optical axis to constitute an optical system; And, when retractable lens system is in retracted state, a removable optical module in described a plurality of optical module is moved to the radially reception position that is positioned at the common optical axis outside, the motion of described removable optical module is independent of other optical module, and its optical axis when reception position radially perpendicular to common optical axis.
2, retractable lens system as claimed in claim 1 is characterized in that described removable optical module is a lens combination.
3, retractable lens system as claimed in claim 2 is characterized in that described lens combination is retained on one and accommodates in the frame, and this is accommodated frame and is arranged at rotationally in the activity box, and the direction of motion of this activity box is identical with the direction of motion of retractable lens system.
4, retractable lens system as claimed in claim 3 is characterized in that the described frame of accommodating is located in the activity box rotationally by the single-revolution axle on it, and the bearing of trend of this revolving shaft is perpendicular to described common optical axis.
5, retractable lens system as claimed in claim 4 is characterized in that the two ends of described revolving shaft respectively are provided with a torsionspring.
6, retractable lens system as claimed in claim 5, it is characterized in that the described frame of accommodating is being provided with a docking part near revolving shaft one end part, this docking section is provided with an arc surface and is used for connecting with the plane of docking of another optical module in the retraction process of retractable lens system.
7, a kind of retractable lens system, can protract and after contract and in running order and receiving state respectively, this retractable lens system comprises the optical system that is made of first lens combination, second lens combination and the 3rd lens combination, and the second lens combination accommodating mechanism, it is characterized in that: when retractable lens system was in running order, described all lens combination all were positioned on the optical axis of optical system; When retractable lens system was in receiving state, second lens combination can be moved to the radially reception position in the optical axis outside that is positioned at optical system by the described second lens combination accommodating mechanism, and its optical axis when this position and the optical axis of optical system perpendicular.
8, retractable lens system as claimed in claim 7, it is characterized in that: when reception position radially, described second lens combination is incorporated in the radial outside space of the accommodation space of first lens combination and the 3rd lens combination, promptly second lens combination radially is received in the axial range, and this scope equals first lens combination and the 3rd lens combination axial range at the optical axis direction of optical system substantially.
9, retractable lens system as claimed in claim 7, it is characterized in that the described second lens combination accommodating mechanism is a convertible accommodating mechanism, it is accommodated frame by one second lens combination activity box and one second lens combination and forms, this second lens combination is accommodated frame and is arranged at rotationally in the second lens combination activity box, and the direction of motion of this second lens combination activity box is identical with the direction of motion of retractable lens system.
10, retractable lens system as claimed in claim 9 is characterized in that: it further comprises one and is arranged at second lens combination and accommodates shutter unit on the frame.
11, retractable lens system as claimed in claim 10, it is characterized in that the described second lens combination activity box has a wheel rim, one first resettlement section and one second resettlement section, this first resettlement section and second resettlement section be respectively applied for ccontaining be positioned at a last working position with radially second lens combination, second lens combination of reception position are accommodated frame and shutter unit.
12, retractable lens system as claimed in claim 11, it is characterized in that described second lens combination accommodates frame and have one against bar, when retractable lens system was in receiving state, this bottom surface against second resettlement section of the bar and the second lens combination activity box connected.
13, retractable lens system as claimed in claim 9, it is characterized in that described second lens combination accommodates frame and be located at rotationally in the second lens combination activity box by the single-revolution axle on it, the bearing of trend of this revolving shaft is perpendicular to the optical axis of described optical system.
14, retractable lens system as claimed in claim 13 is characterized in that the two ends of described revolving shaft respectively are provided with a torsionspring.
15, retractable lens system as claimed in claim 14 is characterized in that described torsionspring accommodates in second lens combination between the inside surface of axle installation portion and the second lens combination activity box of frame.
16, retractable lens system as claimed in claim 13, it is characterized in that described second lens combination accommodates frame and be provided with a docking part near revolving shaft one end part, this docking section is provided with an arc surface and is used for connecting with the plane of docking of another optical module in the process of taking in of retractable lens system.
17, retractable lens system as claimed in claim 16 is characterized in that described another optical module is a CCD bearing, and this CCD bearing has a contact site that protracts, and described butt joint plane is the preceding transverse plane of contact site.
18, retractable lens system as claimed in claim 17 is characterized in that: when retractable lens system was in receiving state, the arc surface that described second lens combination is accommodated the docking section of frame was connected to the side of the contact site of CCD bearing.
19, retractable lens system as claimed in claim 17, it is characterized in that described CCD bearing has the motion that a guide bar that protracts is used to guide the second lens combination activity box, when retractable lens system was in receiving state, this guide bar was contained in the corresponding groove of the second lens combination activity box.
20, a convertible lens accommodating mechanism is used for an extension type lens system, and this convertible lens accommodating mechanism comprises:
One activity box has wheel rim, first resettlement section and second resettlement section;
One lens that are arranged on rotationally in the activity box are accommodated frame, and these lens are accommodated frame and had installation portion, are installed on the single-revolution axle on the installation portion, and the docking section of establishing near revolving shaft one end; And
Be arranged at a pair of torsionspring at revolving shaft two ends, this torsionspring is accommodated between the inside surface of the installation portion of frame and activity box wheel rim at lens; Wherein
The docking section that lens are accommodated frame has an arc surface, is used for moving process at activity box and docks the plane with one and connect and make lens accommodate frame and change between the orthogonal primary importance and the second place; When primary importance, these lens are accommodated frame and are placed in first resettlement section of activity box; When the second place, these lens are accommodated frame and are placed in second resettlement section of activity box; The moving direction with activity box is vertical and parallel respectively with the second place for described primary importance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520106994.1U CN2881716Y (en) | 2005-08-31 | 2005-08-31 | Collapsible lens system and turn-over type lens accepting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520106994.1U CN2881716Y (en) | 2005-08-31 | 2005-08-31 | Collapsible lens system and turn-over type lens accepting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881716Y true CN2881716Y (en) | 2007-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520106994.1U Expired - Fee Related CN2881716Y (en) | 2005-08-31 | 2005-08-31 | Collapsible lens system and turn-over type lens accepting mechanism |
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| CN (1) | CN2881716Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416397C (en) * | 2005-08-31 | 2008-09-03 | 亚洲光学股份有限公司 | Telescopic lens system and reversible lens accommodating mechanism |
| CN106980165A (en) * | 2016-01-15 | 2017-07-25 | 佳能株式会社 | Lens barrel and picture pick-up device with collapsible lens group |
| CN115291353A (en) * | 2022-08-19 | 2022-11-04 | 中国科学院长春光学精密机械与物理研究所 | Large-caliber small-spacing optical lens group, assembling and adjusting method and optical equipment |
-
2005
- 2005-08-31 CN CN200520106994.1U patent/CN2881716Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416397C (en) * | 2005-08-31 | 2008-09-03 | 亚洲光学股份有限公司 | Telescopic lens system and reversible lens accommodating mechanism |
| CN106980165A (en) * | 2016-01-15 | 2017-07-25 | 佳能株式会社 | Lens barrel and picture pick-up device with collapsible lens group |
| CN115291353A (en) * | 2022-08-19 | 2022-11-04 | 中国科学院长春光学精密机械与物理研究所 | Large-caliber small-spacing optical lens group, assembling and adjusting method and optical equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20070321 Termination date: 20090930 |