CN102591103A - Rotary drum for telescopic lens - Google Patents
Rotary drum for telescopic lens Download PDFInfo
- Publication number
- CN102591103A CN102591103A CN2011101153000A CN201110115300A CN102591103A CN 102591103 A CN102591103 A CN 102591103A CN 2011101153000 A CN2011101153000 A CN 2011101153000A CN 201110115300 A CN201110115300 A CN 201110115300A CN 102591103 A CN102591103 A CN 102591103A
- Authority
- CN
- China
- Prior art keywords
- revolving drum
- guide groove
- toothed portion
- camera
- outer toothed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000019994 cava Nutrition 0.000 claims description 3
- 230000004323 axial length Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Landscapes
- Accessories Of Cameras (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to a rotary cylinder for a telescopic lens, which comprises a body, a driving device and a driving device, wherein the body is provided with an outer surface, a guide groove inwards sunken from the outer surface and an outer tooth part, and the body is provided with a transverse section parallel to the radial direction of the body and passes through the guide groove and the outer tooth part; the rotary cylinder is driven by the driving device to rotate by the external tooth part thereof, so that the guide post can drive the translation cylinder which is fixedly connected with the guide post and sleeved outside the rotary cylinder to linearly move while moving in the guide groove, thereby enabling the lens to generate telescopic action; moreover, the axial length of the rotary cylinder is only slightly larger than the maximum distance of the translation cylinder, so that the overall length of the lens during the shrinkage can be effectively reduced, and the camera provided with the lens is thinner.
Description
Technical field
The present invention is relevant with camera or the employed dolly camera of other optical articles, particularly about a kind of revolving drum that is used for dolly camera.
Background technology
The camera lens of many cameras is adopted telescopic design on the market, meaning promptly, its camera lens stretches out casing when camera start shooting, and when shutting down its camera lens condensation in casing.See also Fig. 1; The known camera lens of reaching aforementioned Telescopic includes revolving drum 10 and translation tube 11; The outside surface of this revolving drum 10 is provided with the tooth portion 12 that is positioned at the one of which end; And a plurality of guide grooves 14 that extend obliquely towards this tooth portion 12 from the other end, be provided with the guide pillar 16 that can move along this guide groove 14 in wherein at least one this guide groove 14; This translation tube 11 is sheathed on outside this revolving drum 10, and these guide pillars 16 are fixedly arranged on the inboard of this translation tube 11; This revolving drum 10 is driven by the drive unit (not shown) and rotates with its tooth portion 12, and then drives this translation tube 11 and move along the axial straight line of this revolving drum 10, uses making this camera lens produce flexible action.
Yet; The axial length of aforementioned this revolving drum 10 must be at least the face width of tooth that these translation tube 11 required mobile ultimate ranges are added this tooth portion 12; And therefore the thickness of installing the camera of this camera lens must, adopt the camera of aforementioned camera lens to have suitable thickness greater than the axial length of this revolving drum 10; Can't satisfy now slimming design requirement, thereby have much room for improvement for camera.
Summary of the invention
The subject matter that the present invention will solve is; Can't satisfy the defective of camera slimming requirement to revolving drum in the prior art; A kind of revolving drum that is used for dolly camera is provided, the entire length in the time of can reducing the camera lens contraction effectively, and then make camera slimming more.
The technical scheme that the present invention is adopted for its technical matters of solution is; A kind of revolving drum that is used for dolly camera is provided; Include body; This body has outside surface, the guide groove that caves inward of this outside surface, and outer toothed portion certainly, and this body has parallel its transverse section radially through this guide groove and this outer toothed portion.
The revolving drum that is used for dolly camera of embodiment of the present invention; Has following beneficial effect: by this; This revolving drum is driven by drive unit can its outer toothed portion and rotates, and makes guide pillar can drive translation tube straight line affixed with this guide pillar and that be sleeved on outside this revolving drum when in this guide groove, moving and moves; And the axial length of this revolving drum only is slightly larger than the required mobile ultimate range of this translation tube, the entire length in the time of therefore can reducing the camera lens condensation effectively, and then make the camera slimming more of installing this camera lens.
Relevant detailed construction, characteristics, assembling or the use-pattern that is used for the revolving drum of dolly camera provided by the present invention will be described in follow-up embodiment specifies.Yet in field of the present invention, having common knowledge the knowledgeable should be able to understand, and the specific embodiment that these detailed descriptions and embodiment of the present invention are cited only is used to explain the present invention, is not in order to limit claim scope of the present invention.
Description of drawings
Fig. 1 is a three-dimensional exploded view, shows the revolving drum and the translation tube of known dolly camera;
The schematic perspective view of the revolving drum that is used for dolly camera that Fig. 2 is provided for the present invention's first preferred embodiment;
The schematic side view of the revolving drum that is used for dolly camera that Fig. 3 is provided for this first preferred embodiment of the present invention;
Fig. 4 is the cut-open view of Fig. 3 along the 4-4 hatching line; And
The schematic side view of the revolving drum that is used for dolly camera that Fig. 5 is provided for the present invention's second preferred embodiment.
Embodiment
Below will specify technology contents of the present invention and characteristic by cited embodiment conjunction with figs., wherein:
The schematic perspective view of the revolving drum that is used for dolly camera that Fig. 2 is provided for the present invention's first preferred embodiment;
The schematic side view of the revolving drum that is used for dolly camera that Fig. 3 is provided for this first preferred embodiment of the present invention;
Fig. 4 is the cut-open view of Fig. 3 along the 4-4 hatching line; And
The schematic side view of the revolving drum that is used for dolly camera that Fig. 5 is provided for the present invention's second preferred embodiment.
Please consult Fig. 2 and Fig. 3 earlier; The revolving drum that is used for dolly camera 10 that the present invention's first preferred embodiment is provided includes body 20; This body 20 is the cylindric of both ends open; Have the first relative end face 21 and second end face 22, and be connected in this first, second end face 21, the outside surface between 22 24.In addition, this body 20 has more a plurality of first guide grooves 31 and second guide groove 32 that caves inward from its outside surface 24, and outer toothed portion 40.
The shape of these first guide grooves 31 and second guide groove 32 each other roughly the same; Extend obliquely towards this second end face 22 again after this first end face, 21 positions elder generation horizontal expansion from these body 20 outside surfaces 24 respectively; And has a horizontal section 312,322 near this second end face 22; But the horizontal section 322 of this second guide groove 32 is extended distribution along this outside surface 24 in abutting connection with these second end face, 22 positions, and radially overlaps with this outer toothed portion 40, and meaning promptly; The horizontal section 322 of this outer toothed portion 40 and this second guide groove 32 is connected with this second end face 22 equally, but this horizontal section 322 is overlapped in the outside of this outer toothed portion 40.Thus; As shown in Figure 4; This body 20 has horizontal section 312,322 and this outer toothed portion 40 of parallel its transverse section 26 radially through these guide grooves 31,32, and the degree of depth of this horizontal section 322 equals the distance of each tooth top 42 with the outside surface 24 of this body 20 of this outer toothed portion 40.
The aforementioned revolving drum 10 that is used for dolly camera provided by the present invention is socketed on its outside in order to receive translation tube (not shown), and with so that this translation tube affixed guide pillar 50 be located at movably in this guide groove 32; When this revolving drum 10 is driven by the drive unit (not shown) and when rotating, this translation tube can move along the axial straight line of this revolving drum 10 with its outer toothed portion 40.When this guide pillar 50 when first end face 21 of this revolving drum 10 moves; This camera lens produces the action that launches; And when this guide pillar 50 when second end face 22 of this revolving drum 10 moves to the horizontal section 322 of this guide groove 32, this camera lens is condensed into the minimum state of its entire length.In addition, this translation tube can more be provided with a plurality of corresponding with these guide grooves 31 respectively guide pillar (not shown), drives this translation tube synchronously by these guide pillars, can make that the expanding-contracting action of this camera lens is more smooth and easy.The more important thing is; The axial length of this revolving drum 10 less than this translation tube the ultimate range that must move add the face width of tooth of this outer toothed portion 40; In fact, the axial length of this revolving drum 10 only be slightly larger than this translation tube the ultimate range that must move, therefore; This revolving drum 10 can reduce the entire length of camera lens effectively, and then makes the camera slimming more that is provided with this camera lens.
Can learn by aforementioned this first preferred embodiment; Of the present invention focusing on overlaps by the path part of outer toothed portion distribution range that makes revolving drum and guide groove; To reduce the axial length of this revolving drum; And then reach the effect of reducing the camera lens entire length, and this effect also can be reached by second preferred embodiment of the following stated.
See also Fig. 5; The revolving drum that is used for dolly camera 60 that the present invention's second preferred embodiment is provided has first end face 61, second end face 62, outside surface 64, be located at this outside surface 64 and in abutting connection with the outer toothed portion 70 of this second end face 62, and most first guide grooves 81 and second guide groove 82 that cave inward of this outside surface 64 certainly.This revolving drum 60 is that with the difference of the revolving drum 10 of aforementioned first preferred embodiment shape of this second guide groove 82 is identical with these first guide grooves 81, and the horizontal section 822 of this second guide groove 82 does not overlap with this outer toothed portion 70; Know clearly it; This outer toothed portion 70 have face width of tooth than it in abutting connection with the little narrower section 72 of section; It is adjacent section formation section than the end away from this second end face 62 and differs from 74; This second guide groove 82 extends towards the narrower section of this outer toothed portion 70 72, and this horizontal section 822 is positioned at this section and differs from 74 thereby axially be close to this narrower section 72.Thus; Even each tooth top 76 of this outer toothed portion 70 is positioned at same curved surface with the outside surface 64 of this revolving drum 60; These guide grooves 81,82 still can with the same transverse section of this outer toothed portion 70 through this revolving drum 60, meaning promptly, this revolving drum 60 also can reach the effect identical with this revolving drum 10.
At last, must explain once more that the present invention is in the constituent components of preceding taking off among the embodiment to be disclosed, be merely and illustrate, be not the scope that is used for limiting this case, the substituting or change of other equivalent elements, and the claim that also should be this case contains.
Claims (4)
1. a revolving drum that is used for dolly camera is characterized in that, includes:
Body has outside surface, the guide groove that caves inward of this outside surface, and outer toothed portion certainly, and this body has parallel its transverse section radially through this guide groove and this outer toothed portion.
2. the revolving drum that is used for dolly camera as claimed in claim 1 is characterized in that, this guide groove has part radially to overlap with this outer toothed portion.
3. the revolving drum that is used for dolly camera as claimed in claim 2 is characterized in that this guide groove has horizontal section, and this horizontal section is positioned at the end of this this body of abut outer surfaces, and this horizontal section and this outer toothed portion radially overlap.
4. the revolving drum that is used for dolly camera as claimed in claim 1; It is characterized in that; This outer toothed portion have face width of tooth than it in abutting connection with the little narrower section of section, an end of this guide groove has horizontal section, and the narrower section of axially contiguous this outer toothed portion of this horizontal section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100101677A TW201232159A (en) | 2011-01-17 | 2011-01-17 | Rotation tube for zoom lens |
| TW100101677 | 2011-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102591103A true CN102591103A (en) | 2012-07-18 |
| CN102591103B CN102591103B (en) | 2015-12-02 |
Family
ID=46479976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110115300.0A Active CN102591103B (en) | 2011-01-17 | 2011-05-05 | Rotary drum for telescopic lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102591103B (en) |
| TW (1) | TW201232159A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959440A (en) * | 2019-05-20 | 2020-11-20 | 法可川斯帕股份公司 | Telescopic cleaning device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06313829A (en) * | 1993-04-30 | 1994-11-08 | Konica Corp | Lens-barrel |
| JPH08313788A (en) * | 1995-05-17 | 1996-11-29 | Olympus Optical Co Ltd | Lens barrel |
| JP2001215563A (en) * | 2000-01-31 | 2001-08-10 | Asahi Optical Co Ltd | Barrier opening/closing device for lens barrel |
| US20040141736A1 (en) * | 2002-08-27 | 2004-07-22 | Pentax Corporation | Retractable lens barrel |
| US20070019948A1 (en) * | 2005-07-19 | 2007-01-25 | Canon Kabushiki Kaisha | Lens barrel, driving method thereof, and image pickup device |
| CN1952717A (en) * | 2005-10-20 | 2007-04-25 | 索尼株式会社 | Lens barrel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009048117A (en) * | 2007-08-22 | 2009-03-05 | Olympus Imaging Corp | Lens frame |
-
2011
- 2011-01-17 TW TW100101677A patent/TW201232159A/en unknown
- 2011-05-05 CN CN201110115300.0A patent/CN102591103B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06313829A (en) * | 1993-04-30 | 1994-11-08 | Konica Corp | Lens-barrel |
| JPH08313788A (en) * | 1995-05-17 | 1996-11-29 | Olympus Optical Co Ltd | Lens barrel |
| JP2001215563A (en) * | 2000-01-31 | 2001-08-10 | Asahi Optical Co Ltd | Barrier opening/closing device for lens barrel |
| US20040141736A1 (en) * | 2002-08-27 | 2004-07-22 | Pentax Corporation | Retractable lens barrel |
| US20070019948A1 (en) * | 2005-07-19 | 2007-01-25 | Canon Kabushiki Kaisha | Lens barrel, driving method thereof, and image pickup device |
| CN1952717A (en) * | 2005-10-20 | 2007-04-25 | 索尼株式会社 | Lens barrel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959440A (en) * | 2019-05-20 | 2020-11-20 | 法可川斯帕股份公司 | Telescopic cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102591103B (en) | 2015-12-02 |
| TWI425304B (en) | 2014-02-01 |
| TW201232159A (en) | 2012-08-01 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |