CN100401128C - Zoom lens - Google Patents
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- CN100401128C CN100401128C CNB2005101359031A CN200510135903A CN100401128C CN 100401128 C CN100401128 C CN 100401128C CN B2005101359031 A CNB2005101359031 A CN B2005101359031A CN 200510135903 A CN200510135903 A CN 200510135903A CN 100401128 C CN100401128 C CN 100401128C
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- zoom lens
- arc
- shaped cam
- pedestal
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Abstract
The zoom lens comprises the front base, rear base, guide component, multiple optical component and arc cam plates. The guide components set between the front and rear bases. The optical component can slidingly set on the guide component with protruding edges of the components. The arc cam bit can set between the front and rear bases slidingly with several guiding structure. Each optical component slides along the guide component matching with the guide structure through the embossment.
Description
Technical field
The present invention relates to a kind of camera lens, and be particularly related to a kind of zoom lens.
Background technology
Camera lens with zoom function is all the consumer who pursues photographic quality all the time to be favored.The zoom drive mode of traditional zoom camera lens can be divided into two big classes, the one, with each the kinetoscope group in the zoom lens all with a motor driven, the one, adopt cam once to drive all kinetoscope groups.Yet, if want each kinetoscope group, must need to take many spaces all with a motor driven, this is for being quite impracticable for the electronic product of designer trends with compact.
The exploded view of the zoom lens that Fig. 1 is proposed for No. 4974949 for United States Patent (USP).Please refer to Fig. 1, in the zoom lens that this patent proposed, mainly be mirror group 10,20 and 30 and driving cam tube 40 on assembling cam pin 12,22,32 and 42, and the fluting 52 and 57 of the tubular cam 50 by mutual fit and 55 limits the mobile of cam pin 12,22,32 and 42.Thus, when tubular cam 50 when 55 do relative rotation, cam pin 12,22,32 and 42 will move along with the variation of the plotted point of fluting 52 and 57, and then reach moving lens group 10,20 and 30 to carry out the purpose of zoom.Yet there is the very shortcoming of difficulty of assembling in this zoom lens after volume-diminished.
The synoptic diagram of the zoom lens that Fig. 2 is proposed for No. 5140468 for United States Patent (USP).Please refer to Fig. 2, in the zoom lens that this patent proposed, mainly is that three mirror groups 60 are assembled in two lens barrels 70, and utilizes the rotation of the fluting 72 restriction mirror groups 60 of lens barrel 70.In addition, mirror group 60 also is installed on the guide rod 80 slidably, and is equipped with cam pin 62 on each mirror group 60.In addition, mirror group 60 tops then are provided with two plate cams 90, also have fluting 92 on each plate cam 90, and it moves in order to restriction cam pin 62.When plate cam 90 when the A-B direction moves, each is slotted and 92 driving is positioned at moving of wherein cam pin 62, reaches thus and moves each mirror group 60 to carry out the purpose of zoom.Yet, move required space owing to need to reserve plate cam 90 along the A-B direction, so the volume of this zoom lens is difficult for dwindling.
From the above, because at present all there is not easy-to-assemble problem after bulky or the volume-diminished in known zoom lens, therefore how with the zoom lens microminiaturization and be easy to assemble, become problem demanding prompt solution with in response to the compact designer trends of electronic product.
Summary of the invention
The purpose of this invention is to provide a kind of zoom lens, the advantage that it has the little and easy assembling of volume is suitable for being applied in the compact electronic product.
The present invention proposes a kind of zoom lens, and it comprises preceding pedestal, back pedestal, guide member, a plurality of optical element and arc-shaped cam sheet.Guide member is fixed between preceding pedestal and the back pedestal.Optical element is mounted slidably on guide member, and the edge of each optical element has projection.The arc-shaped cam sheet is arranged between preceding pedestal and the back pedestal movably, and has a plurality of guiding structurals.Wherein, each optical element slides along guide member with cooperating of guiding structural by projection respectively, the radius-of-curvature of this arc-shaped cam sheet is greater than the radius of these optical elements, the curvature axis parallel of this arc-shaped cam sheet but do not overlap the optical axis of those optical elements, and this arc-shaped cam sheet is that rotating shaft is rotated with its curvature axle center when moving.
In an embodiment of this zoom lens, preceding pedestal has first deep-slotted chip breaker, and back pedestal has second deep-slotted chip breaker, and the leading edge of arc-shaped cam sheet and trailing edge are suitable for respectively sliding along first deep-slotted chip breaker and second deep-slotted chip breaker.
In an embodiment of this zoom lens, preceding pedestal has first deep-slotted chip breaker, and the leading edge of arc-shaped cam sheet is suitable for sliding along first deep-slotted chip breaker.
In an embodiment of this zoom lens, back pedestal has second deep-slotted chip breaker, and the trailing edge of arc-shaped cam sheet is suitable for sliding along second deep-slotted chip breaker.
In an embodiment of this zoom lens, also comprise many gag lever posts, it is fixed between preceding pedestal and the back pedestal, and the arc-shaped cam sheet is mounted slidably between gag lever post.
In an embodiment of this zoom lens, also comprise CD-ROM drive motor, it has driven wheel.Wherein, have dentalation on the surface of arc-shaped cam sheet, CD-ROM drive motor drives the arc cam bit by the engagement of driven wheel and dentalation.
In an embodiment of this zoom lens, guide member is two guide rods, and optical element is mounted slidably between two guide rods.
In an embodiment of this zoom lens, guide member has two guide rails, and optical element is mounted slidably between two guide rails.
In an embodiment of this zoom lens, also comprise shell, pedestal and back pedestal before it connects, and coat guide member, optical element and arc-shaped cam sheet.Wherein, shell is for example integrally formed with preceding pedestal or back pedestal.
In an embodiment of this zoom lens, guiding structural is a guide channel, and the projection of optical element is suitable for sliding in guiding structural.
In an embodiment of this zoom lens, also comprise at least one spring, it is connected between the optical element.Wherein, guiding structural is a guiding face, and the strength that spring imposes on optical element makes projection keep being closely against on the guiding structural.
In an embodiment of this zoom lens, also comprise a plurality of springs, it is connected between optical element and preceding pedestal or the back pedestal.Wherein, guiding structural is a guiding face, and the strength that spring imposes on optical element makes projection keep being closely against on the guiding structural.
In sum, in the zoom lens of the present invention, be to drive optical element with the guiding structural on the arc-shaped cam sheet to move to carry out zoom.This arc-shaped cam sheet need not reserved very big mobile space, and assembling is very easy.In other words, zoom lens of the present invention can meet the compact designer trends of electronic product fully.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
The exploded view of the zoom lens that Fig. 1 is proposed for No. 4974949 for United States Patent (USP).
The synoptic diagram of the zoom lens that Fig. 2 is proposed for No. 5140468 for United States Patent (USP).
Fig. 3 is the synoptic diagram of the zoom lens of one embodiment of the invention.
Fig. 4 is the synoptic diagram behind the pedestal before the zoom lens of Fig. 3 removes.
Fig. 5 is the synoptic diagram of an optical element among Fig. 3.
Fig. 6 is the synoptic diagram of arc-shaped cam sheet among Fig. 3.
Fig. 7 is the front view behind the pedestal before the zoom lens of Fig. 3 removes.
Fig. 8 is the synoptic diagram behind the pedestal before the zoom lens of another embodiment of the present invention removes.
Fig. 9 is the synoptic diagram of guide member of the zoom lens of yet another embodiment of the invention.
Figure 10 is the synoptic diagram of shell of the zoom lens of further embodiment of this invention.
Figure 11 A is the present invention's synoptic diagram of the arc-shaped cam sheet of the zoom lens of an embodiment also.
Figure 11 B is the diagrammatic cross-section that cooperates of arc-shaped cam sheet with the optical element of Figure 11 A.
Figure 12 A is the synoptic diagram of arc-shaped cam sheet of the zoom lens of yet another embodiment of the invention.
Figure 12 B is the diagrammatic cross-section that cooperates of arc-shaped cam sheet with the optical element of Figure 12 A.
The main element description of symbols
10,20,30,60: the mirror group
12,22,32,42: cam pin
40: the driving cam tube
50,55: the tubular cam
52,57,72,92: fluting
70: lens barrel
80: guide rod
62: cam pin
90: plate cam
A-B: direction
300: zoom lens
310: preceding pedestal
312: opening
320: the back pedestal
324: deep-slotted chip breaker
330,900: guide member
340,1130,1230: optical element
342,344: lug
346,1132,1232: projection
342a, 344a: perforate
350,1110,1210: the arc-shaped cam sheet
352,1112,1212: guiding structural
354: dentalation
360: CD-ROM drive motor
362: driven wheel
364: transmission gear
380: gag lever post
390: shell
910: guide rail
1120,1220: spring
Embodiment
Fig. 3 is the synoptic diagram of the zoom lens of one embodiment of the invention, and Fig. 4 is the synoptic diagram behind the pedestal before the zoom lens of Fig. 3 removes, and Fig. 5 is the synoptic diagram of an optical element among Fig. 3, and Fig. 6 is the synoptic diagram of arc-shaped cam sheet among Fig. 3.
Please refer to Fig. 3 and Fig. 4, the zoom lens 300 of present embodiment comprises preceding pedestal 310, back pedestal 320, guide member 330, a plurality of optical element 340 and arc-shaped cam sheet 350.Wherein, preceding pedestal 310 for example has opening 312, so that external image can enter into zoom lens 300 inside by opening 312.Back pedestal 320 can have the opening (not shown) equally, so that image can arrive on the image sensing element (not shown) at pedestal 320 rears, back after by zoom lens 300 inside.
Please refer to Fig. 3 and Fig. 4, arc-shaped cam sheet 350 is arranged between preceding pedestal 310 and the back pedestal 320 movably, and has a plurality of guiding structurals 352.Particularly, arc-shaped cam sheet 350 is equivalent to a part of housing of a cylinder, is that rotating shaft is rotated with its curvature axle center when it moves.In the present embodiment, guiding structural 352 is a guide channel, and the projection 346 of optical element 340 then is suitable for sliding along guiding structural 352.In other words, when arc-shaped cam sheet 350 is rotating shaft when rotating with its curvature axle center, optical element 340 will slide along guide member 330 because of the passing of 352 pairs of projectioies 346 of guiding structural.With this, arc-shaped cam sheet 350 can drive each optical element 340 respectively, to reach the purpose of optical zoom.Certainly, the guiding structural of arc-shaped cam is not limited to guide channel among the present invention, drives optical element as long as can cooperate with the projection of optical element.In addition, the radius-of-curvature of the arc-shaped cam sheet 350 of present embodiment for example is the radius greater than optical element 340, and the curvature axle center of arc-shaped cam sheet 350 for example is parallel but do not overlap the optical axis of optical element 340.
Please refer to Fig. 3 and Fig. 4, in the zoom lens 300 of present embodiment, is to be that rotating shaft is rotated with its curvature axle center when moving owing to arc-shaped cam sheet 350, does not therefore need to reserve very big mobile space, and can reach the purpose of reduced volume.In addition, the assembling mode that arc-shaped cam sheet 350 and optical element are 340 is also simple more than known tubular cam, therefore can reach the purpose of simplifying assembling.In addition, arc-shaped cam sheet 350 its rigidity after dwindling can significantly improve, and therefore can accurately drive each optical element 340 with predetermined manner.In other words, the zoom lens 300 of present embodiment can meet the compact designer trends of electronic product fully.
Please refer to Fig. 3 and Fig. 4, the back pedestal 320 of present embodiment has deep-slotted chip breaker 324, and the trailing edge of arc-shaped cam sheet 350 is suitable for holding in deep-slotted chip breaker 324 and along deep-slotted chip breaker 324 slips.Wherein, the radius-of-curvature of deep-slotted chip breaker 324 is identical with the radius-of-curvature of arc-shaped cam sheet 350.Simultaneously, the range of movement of arc-shaped cam sheet 350 can be done suitable restriction by deep-slotted chip breaker 324.Certainly, preceding pedestal 310 also can have the deep-slotted chip breaker corresponding to deep-slotted chip breaker 324, but also not shown in this figure.Perhaps, preceding pedestal 310 and back pedestal 320 both any one have deep-slotted chip breaker and also can.
Fig. 7 is the front view behind the pedestal before the zoom lens of Fig. 3 removes.Please refer to Fig. 7, the zoom lens 300 of present embodiment also can comprise CD-ROM drive motor 360, and it has driven wheel 362.Have dentalation 354 on the surface of arc-shaped cam sheet 350, this dentalation 354 can be positioned at the leading edge portion or the rear edge part of arc-shaped cam sheet 350, and can be positioned at the inside surface or the outside surface of arc-shaped cam sheet 350.In other words, change can be done in the position of dentalation 354 according to design requirement, be not limited to above-mentioned position.The engagement of CD-ROM drive motor 360 by driven wheel 362 and dentalation 354 drives arc cam bit 350 and moves along deep-slotted chip breaker 324.In addition, between driven wheel 362 and dentalation 354, also can be provided with one to a plurality of transmission gears 364.Certainly, arc-shaped cam sheet 350 also can adopt manual mode to move, and not limiting needs to be driven by CD-ROM drive motor 360.
Fig. 8 is the synoptic diagram behind the pedestal before the zoom lens of another embodiment of the present invention removes.The difference of present embodiment and last embodiment is the supporting way of arc-shaped cam sheet 350, so identical components will be represented with same numeral.The zoom lens of present embodiment also comprises many gag lever posts 380, and between pedestal (not shown) and the back pedestal 320, arc-shaped cam sheet 350 then was mounted slidably between each gag lever post 380 before it was fixed in.By gag lever post 380 spacing for arc-shaped cam sheet 350, can make arc-shaped cam sheet 350 is that rotating shaft is rotated with its curvature axle center.In addition, equally optionally arrange in pairs or groups on preceding pedestal 310 and the back pedestal 320 design of deep-slotted chip breaker.
Fig. 9 is the synoptic diagram of guide member of the zoom lens of yet another embodiment of the invention.Please refer to Fig. 3 and Fig. 9, have two guide rails 910 at the guide member 900 of present embodiment.This guide member 900 can replace two guide rods of guide member 300 among Fig. 3, and two lugs 342 of optical element 340 and 344 are mounted slidably in two guide rails 910 after suitably changing.From the above, the guide member of zoom lens of the present invention also can be done many variation designs, as long as can allow optical element 340 be suitable for sliding along its optical axis.
Figure 10 is the synoptic diagram of shell of the zoom lens of further embodiment of this invention.Please refer to Fig. 3 and Figure 10, in an embodiment of zoom lens of the present invention, also can comprise shell 390, pedestal 310 and back pedestal 320 before it connects, and coat guide member 330, optical element 340 and arc-shaped cam sheet 350.By the design of shell 390, can avoid extraneous light, dust to contact inner member with foreign matter.In addition, shell 390 also can be integrally formed with preceding pedestal 310 or back pedestal 320.
Figure 11 A is the present invention's synoptic diagram of the arc-shaped cam sheet of the zoom lens of an embodiment also, and Figure 11 B is the diagrammatic cross-section that cooperates of arc-shaped cam sheet with the optical element of Figure 11 A.Please refer to Figure 11 A and 11B, in the present embodiment, the guiding structural 1112 of arc-shaped cam sheet 1110 is the forms that adopt guiding face.And the zoom lens of present embodiment also comprises at least one spring 1120, and it is connected between two optical elements 1130.Wherein, spring 1120 strength that imposes on optical element 1130 makes projection 1132 keep being closely against on the guiding structural 1112.Particularly, in the present embodiment guiding face of two guiding structurals 1112 be mutually back to, spring 1120 then is to apply pulling force on two optical elements 1130, so projection 1132 will be closely against on the guiding structural 1112 during 1110 rotations of arc-shaped cam sheet, and change two distances between the optical element 1130 to carry out zoom along with guiding structural 1112.On the other hand, if the guiding face of two guiding structurals 1112 faces one another, then spring 1120 answers applied thrust on two optical elements 1130, so that projection 1132 keeps being closely against on the guiding structural 1112.
Figure 12 A is the synoptic diagram of arc-shaped cam sheet of the zoom lens of yet another embodiment of the invention, and Figure 12 B is the diagrammatic cross-section that cooperates of arc-shaped cam sheet with the optical element of Figure 12 A.Please refer to Figure 12 A and 12B, in the present embodiment, the guiding structural 1212 of arc-shaped cam sheet 1210 is the forms that adopt guiding face.And the zoom lens of present embodiment also comprises a plurality of springs 1220, and it is connected between each optical element 1230 and preceding pedestal (not shown) or the back pedestal (not shown).Wherein, spring 1220 strength that imposes on optical element 1230 makes projection 1232 keep being closely against on the guiding structural 1212.Particularly, present embodiment medi-spring 1220 is to apply pulling force on two optical elements 1230, so projection 1232 will be closely against on the guiding structural 1212 during 1210 rotations of arc-shaped cam sheet, and move two optical elements 1130 to carry out zoom along with guiding structural 1212.Hence one can see that, and the guiding structural of arc-shaped cam sheet also can adopt many variation designs in the zoom lens of the present invention.
In sum, zoom lens of the present invention is to drive optical element with the guiding structural on the arc-shaped cam sheet to move to carry out zoom.Wherein, the arc-shaped cam sheet is equivalent to the part of a cylinder, is that rotating shaft is rotated with its curvature axle center when it moves, and therefore can need not reserve very big mobile space as known plate cam, and help reduced volume.In addition,, do not need behind optical element and tubular cam fit, again cam pin to be attached on the optical element, even the assembling of therefore microminiaturized back is still very easy because the arc-shaped cam sheet does not need to assemble in the fit mode as known tubular cam yet.In other words, zoom lens of the present invention can meet the compact designer trends of electronic product fully, also can be applicable to portable type electronic products such as mobile phone and has the market competitiveness.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, the person of ordinary skill in the field, without departing from the spirit and scope of the present invention; when can doing a little change and improvement, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (14)
1. zoom lens is characterized in that comprising:
Preceding pedestal;
Back pedestal;
Guide member is fixed between this preceding pedestal and this back pedestal;
A plurality of optical elements are mounted slidably on this guide member, and respectively the edge of this optical element has projection; And
The arc-shaped cam sheet, be arranged at movably between this preceding pedestal and this back pedestal, this arc-shaped cam sheet has a plurality of guiding structurals, wherein above-mentioned these optical elements slide along this guide member with cooperating of above-mentioned these guiding structurals by above-mentioned these projectioies respectively, the radius-of-curvature of this arc-shaped cam sheet is greater than the radius of these optical elements, the curvature axis parallel of this arc-shaped cam sheet but do not overlap the optical axis of those optical elements, and this arc-shaped cam sheet is that rotating shaft is rotated with its curvature axle center when moving.
2. zoom lens according to claim 1 is characterized in that this preceding pedestal has first deep-slotted chip breaker, and this back pedestal has second deep-slotted chip breaker, and the leading edge of this arc-shaped cam sheet and trailing edge are suitable for respectively sliding along this first deep-slotted chip breaker and this second deep-slotted chip breaker.
3. zoom lens according to claim 1 is characterized in that this preceding pedestal has first deep-slotted chip breaker, and the leading edge of this arc-shaped cam sheet is suitable for sliding along this first deep-slotted chip breaker.
4. zoom lens according to claim 1 is characterized in that this back pedestal has second deep-slotted chip breaker, and the trailing edge of this arc-shaped cam sheet is suitable for sliding along this second deep-slotted chip breaker.
5. zoom lens according to claim 1 is characterized in that also comprising many gag lever posts, and it is fixed between this preceding pedestal and this back pedestal, and this arc-shaped cam sheet is mounted slidably between above-mentioned these gag lever posts.
6. zoom lens according to claim 1, it is characterized in that also comprising CD-ROM drive motor, it has driven wheel, wherein has dentalation on the surface of this arc-shaped cam sheet, and this CD-ROM drive motor drives this arc-shaped cam sheet by the engagement of this driven wheel and this dentalation.
7. zoom lens according to claim 1 is characterized in that this guide member is two guide rods, and above-mentioned these optical elements are mounted slidably between above-mentioned these guide rods.
8. zoom lens according to claim 1 is characterized in that this guide member has two guide rails, and above-mentioned these optical elements are mounted slidably between above-mentioned these guide rails.
9. zoom lens according to claim 1 is characterized in that also comprising shell, pedestal and this back pedestal before its connection is somebody's turn to do, and coat this guide member, above-mentioned these optical elements and this arc-shaped cam sheet.
10. zoom lens according to claim 9 is characterized in that this shell and should be one of the forming by preceding pedestal.
11. zoom lens according to claim 9 is characterized in that this shell and this back pedestal are one of the forming.
12. zoom lens according to claim 1 is characterized in that above-mentioned these guiding structurals are guide channel, above-mentioned these projectioies are suitable for sliding in above-mentioned these guiding structurals.
13. zoom lens according to claim 1, it is characterized in that also comprising at least one spring, it is connected between above-mentioned these optical elements, wherein above-mentioned these guiding structurals are guiding face, and the strength that this spring imposes on above-mentioned these optical elements makes above-mentioned these projectioies keep being closely against on above-mentioned these guiding structurals.
14. zoom lens according to claim 1, it is characterized in that also comprising a plurality of springs, it is connected to above-mentioned these optical elements and is somebody's turn to do between preceding pedestal or this back pedestal, wherein above-mentioned these guiding structurals are guiding face, and the strength that above-mentioned these springs impose on above-mentioned these optical elements makes above-mentioned these projectioies keep being closely against on above-mentioned these guiding structurals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101359031A CN100401128C (en) | 2005-12-31 | 2005-12-31 | Zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101359031A CN100401128C (en) | 2005-12-31 | 2005-12-31 | Zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1996087A CN1996087A (en) | 2007-07-11 |
| CN100401128C true CN100401128C (en) | 2008-07-09 |
Family
ID=38251222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101359031A Expired - Fee Related CN100401128C (en) | 2005-12-31 | 2005-12-31 | Zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100401128C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014204325B3 (en) * | 2014-03-10 | 2015-08-06 | Trimble Jena Gmbh | Optical guidance system for guiding at least one optical lens |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63149616A (en) * | 1986-12-15 | 1988-06-22 | Fuji Photo Optical Co Ltd | Moving structure for lens of camera |
| US4974949A (en) * | 1987-12-21 | 1990-12-04 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens barrel |
| US5140468A (en) * | 1990-02-26 | 1992-08-18 | Fuji Photo Film Co., Ltd. | Zoom lens device |
| US5937215A (en) * | 1996-11-29 | 1999-08-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera having a zoom lens |
| CN1395145A (en) * | 2001-07-06 | 2003-02-05 | 雅客设计有限公司 | Control system of zoom lens of digital camera |
| CN2731482Y (en) * | 2004-09-23 | 2005-10-05 | 矽峰光电科技股份有限公司 | Zoom mechanism of lens module |
-
2005
- 2005-12-31 CN CNB2005101359031A patent/CN100401128C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63149616A (en) * | 1986-12-15 | 1988-06-22 | Fuji Photo Optical Co Ltd | Moving structure for lens of camera |
| US4974949A (en) * | 1987-12-21 | 1990-12-04 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens barrel |
| US4974949B1 (en) * | 1987-12-21 | 1996-06-04 | Asahi Optical Co Ltd | Zoom lens barrel |
| US5140468A (en) * | 1990-02-26 | 1992-08-18 | Fuji Photo Film Co., Ltd. | Zoom lens device |
| US5937215A (en) * | 1996-11-29 | 1999-08-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera having a zoom lens |
| CN1395145A (en) * | 2001-07-06 | 2003-02-05 | 雅客设计有限公司 | Control system of zoom lens of digital camera |
| CN2731482Y (en) * | 2004-09-23 | 2005-10-05 | 矽峰光电科技股份有限公司 | Zoom mechanism of lens module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1996087A (en) | 2007-07-11 |
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