CN105607212A - Focal length adjustment mechanism - Google Patents
Focal length adjustment mechanism Download PDFInfo
- Publication number
- CN105607212A CN105607212A CN201410583449.5A CN201410583449A CN105607212A CN 105607212 A CN105607212 A CN 105607212A CN 201410583449 A CN201410583449 A CN 201410583449A CN 105607212 A CN105607212 A CN 105607212A
- Authority
- CN
- China
- Prior art keywords
- roller
- screw rod
- lens group
- regulating mechanism
- objective holder
- 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.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
Landscapes
- Lens Barrels (AREA)
Abstract
The invention relates to a focal length adjustment mechanism comprising an objective lens holder, a lens group box, an image sensor component, a nut and a screw. The lens group box is arranged in the objective lens holder, and carries a lens group. The image sensor component is arranged in the objective lens holder. The nut is combined to the lens group box, and is provided with a female thread part. The screw is rotationally combined to the objective lens holder, and is provided with a male thread part which is screwed to the female thread part. The screw rotates to drive the nut to rotate and to move the lens group box to make the lens group close to or far away from the image sensor component.
Description
Technical field
The present invention has about a kind of focus regulating mechanism, and relating to especially one can be hold by one hand and adjustThe focus regulating mechanism of mirror group.
Background technology
Known camera or video camera, while wanting adjusting focal length, need a hand steered body of holding camera, and anotherThe rotating cylinder of rotating lens carrys out adjusting focal length on the other hand. So need make with the hands can adjust the focal length of camera,Very inconvenience.
Summary of the invention
The technical problem to be solved in the present invention is, needs both hands for camera in prior art or video cameraThe defect of ability adjusting focal length, provides a kind of focus regulating mechanism, by the roller being arranged on objective holder,Be focus adjustable with singlehanded finger swing roller.
The present invention, for the technical scheme that its technical problem of solution adopts is, provides a kind of focus regulating mechanism,Comprise objective holder, lens group frame, image sensing component, nut and screw rod. Lens group frame is arranged at this thingIn microscope base and carry set of lenses, this image sensing component is located in this objective holder, and nut is incorporated into this lens groupFrame also has box thread portion, and screw rod is rotatably incorporated into this objective holder and has male screw portion, this male threadPortion is screwed together in this box thread portion, and this screw rod rotates and drives this cap rotation, and then mobile this lens group frame,Make this first lens group approach or away from this second set of lenses.
Above-described embodiment more comprises axle sleeve and screw shaft block set, is fixedly arranged on this objective holder, and this screw rod rotatablyBe incorporated into this axle sleeve and screw shaft block set.
Above-described embodiment more comprises roller, is sheathed on this screw rod, and by this roller rotation, this screw rod is rolled by thisWheel drives and rotates.
In the above-described embodiments, this roller portion is exposed to this objective holder.
Implement focus regulating mechanism of the present invention, there is following beneficial effect: by roller 80 and screw rod 60Combining structure, allow user in the time being hold by one hand objective holder 10, can make set of lenses 30 move simultaneouslyAnd adjusting focal length is very convenient in the use.
Brief description of the drawings
For above and other objects of the present invention, feature and advantage can be become apparent, cited below particularly go outEmbodiment also coordinates accompanying drawing to elaborate.
Fig. 1 is the cutaway view of focus regulating mechanism of the present invention;
Fig. 2 is the stereogram of focus regulating mechanism of the present invention.
Detailed description of the invention
Refer to Fig. 1, it represents focus regulating mechanism of the present invention. Optical lens 100 of the present invention comprisesObjective holder 10, lens group frame 20, set of lenses 30, image sensing component 40, nut 50, screw rod 60,Axle sleeve and screw shaft block set 70 and roller 80, below illustrate respectively its structure.
This optical lens 100 has optical axis, and image sensing component 40 is arranged in objective holder 10, lens groupFrame 20 carries set of lenses 30, and nut 50 has box thread portion 52 and is fixedly installed on outside lens group frame 20Surface groove 22 in, screw rod 60 along be parallel to optical axis direction extend, and have male screw portion 62,Axial region 64 and joint portion 66, male screw portion 62 is screwed together in the box thread portion 52 of nut 50, axial region 64Rotatably be arranged in axle sleeve and screw shaft block set 70, axle sleeve and screw shaft block set 70 are fixedly arranged on objective holder 10In, roller 80 fixed covers are located at joint portion 66, and a part for roller 80 is via the slotted eye 12 of objective holder 10Be exposed to objective holder 10.
In the time that user is hold by one hand objective holder 10, user's finger (being for example forefinger or middle finger) is passableSwing roller 80, by the rotation of roller 80, makes screw rod 60 rotate jointly, and 50, nut is due to spiral shellBar 60 rotates and drives, lens group frame 20 is moved and approach or away from image sensing component 40, by thisThe light of scioptics group 30 is clearly imaged on image sensing component 40.
The present invention is the combining structure with screw rod 60 by roller 80, allows user be hold by one hand object lensSeat can make set of lenses 30 move and adjusting focal length at 10 o'clock simultaneously, makes light clearly image in image sensingAssembly 40, very convenient in the use.
Though the present invention discloses as above with embodiment, it is non-in order to limit scope of the present invention, the artPersonnel, not departing from spiritual scope of the present invention, when doing a little change and retouching, therefore thisBright protection domain is when being as the criterion depending on the claim person of defining.
Claims (6)
1. a focus regulating mechanism, is characterized in that, comprising:
Objective holder;
Lens group frame, is arranged in this objective holder and carries set of lenses;
Nut;
Screw rod, this screw rod this lens group frame in rotary moving;
Roller, is sheathed on this screw rod, and by this roller rotation, this screw rod is driven and rotates by this roller.
2. focus regulating mechanism as claimed in claim 1, is characterized in that, more comprises axle sleeve and screw rodSleeve block, is fixedly arranged on this objective holder, and this screw rod is rotatably incorporated into this axle sleeve and screw shaft block set.
3. focus regulating mechanism as claimed in claim 2, is characterized in that, more comprises image sensing groupPart, is located in this objective holder; Wherein this nut, is incorporated into this lens group frame and has box thread portion; This spiral shellBar, is rotatably incorporated into this objective holder and has male screw portion, and this male screw portion is screwed together in this box thread portion,This screw rod rotation and drive this cap rotation, and then mobile this lens group frame, this set of lenses is approached or away fromThis image sensing component.
4. focus regulating mechanism as claimed in claim 3, is characterized in that, this roller portion is exposed toThis objective holder.
5. focus regulating mechanism as claimed in claim 1, is characterized in that, more comprises roller, sheathedIn this screw rod, by this roller rotation, this screw rod is driven and rotates by this roller.
6. focus regulating mechanism as claimed in claim 5, is characterized in that, this roller portion is exposed toThis objective holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583449.5A CN105607212A (en) | 2014-10-27 | 2014-10-27 | Focal length adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583449.5A CN105607212A (en) | 2014-10-27 | 2014-10-27 | Focal length adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105607212A true CN105607212A (en) | 2016-05-25 |
Family
ID=55987278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410583449.5A Pending CN105607212A (en) | 2014-10-27 | 2014-10-27 | Focal length adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105607212A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398064A (en) * | 1990-05-14 | 1995-03-14 | Minolta Co., Ltd. | Camera system with automatic variator compensation in a zooming mode of operation |
| CN1172263A (en) * | 1995-07-07 | 1998-02-04 | 旭光学工业株式会社 | Zoom lens barrel and camera having such barrel |
| CN201732199U (en) * | 2010-02-09 | 2011-02-02 | 彩亿科技(深圳)有限公司 | Focusing device of miniature projector |
| CN202453573U (en) * | 2011-12-20 | 2012-09-26 | 南靖万利达科技有限公司 | Improved lens focusing structure for projector |
| CN202502341U (en) * | 2012-01-31 | 2012-10-24 | 南靖万利达科技有限公司 | Lens focusing structure of micro projector |
| CN203734726U (en) * | 2014-03-11 | 2014-07-23 | 张方中 | Mobile phone with built-in telescope photographing function |
| CN103941375A (en) * | 2013-01-18 | 2014-07-23 | 佳能株式会社 | Lens Barrel And Imaging Apparatus |
| CN103969785A (en) * | 2013-01-31 | 2014-08-06 | Hoya株式会社 | Electrical drive device for bending photographing optical system |
-
2014
- 2014-10-27 CN CN201410583449.5A patent/CN105607212A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398064A (en) * | 1990-05-14 | 1995-03-14 | Minolta Co., Ltd. | Camera system with automatic variator compensation in a zooming mode of operation |
| CN1172263A (en) * | 1995-07-07 | 1998-02-04 | 旭光学工业株式会社 | Zoom lens barrel and camera having such barrel |
| CN201732199U (en) * | 2010-02-09 | 2011-02-02 | 彩亿科技(深圳)有限公司 | Focusing device of miniature projector |
| CN202453573U (en) * | 2011-12-20 | 2012-09-26 | 南靖万利达科技有限公司 | Improved lens focusing structure for projector |
| CN202502341U (en) * | 2012-01-31 | 2012-10-24 | 南靖万利达科技有限公司 | Lens focusing structure of micro projector |
| CN103941375A (en) * | 2013-01-18 | 2014-07-23 | 佳能株式会社 | Lens Barrel And Imaging Apparatus |
| CN103969785A (en) * | 2013-01-31 | 2014-08-06 | Hoya株式会社 | Electrical drive device for bending photographing optical system |
| CN203734726U (en) * | 2014-03-11 | 2014-07-23 | 张方中 | Mobile phone with built-in telescope photographing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |