CN107748425A - A kind of screw thread focus control - Google Patents
A kind of screw thread focus control Download PDFInfo
- Publication number
- CN107748425A CN107748425A CN201711233777.2A CN201711233777A CN107748425A CN 107748425 A CN107748425 A CN 107748425A CN 201711233777 A CN201711233777 A CN 201711233777A CN 107748425 A CN107748425 A CN 107748425A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- screw thread
- lens barrel
- focus control
- focusing
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- SAOPTAQUONRHEV-UHFFFAOYSA-N gold zinc Chemical compound [Zn].[Au] SAOPTAQUONRHEV-UHFFFAOYSA-N 0.000 claims 1
- 230000005923 long-lasting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a kind of screw thread focus control, including pedestal, CMOS modules and lens barrel, wherein pedestal is provided with a guiding counterbore, and CMOS modules are fixed on pedestal, and lens barrel includes a lead and multiple first screwed holes, guiding counterbore on pedestal is sleeved on the lead on pedestal, also include multiple focusing bolts, connect lens barrel and pedestal, and can be by adjusting position of the focusing bolt along lead direction regulation pedestal；The present invention screw thread focus adjusting mechanism improve focus adjustment precision, improve image quality and can long lasting for lower image quality not by ectocine.
Description
Technical field
The present invention relates to the screw thread focus control of field of optical lens, more particularly to a kind of optical lens.
Background technology
In contemporary optics lens design, zoom lens is an indispensable part, in order to obtain preferably into
As effect, lens focus must be adjusted, and realize that the key of zoom is focus control, and the component of focus control is mainly used
In the position of adjustment image-forming module, ensure the image clearly and stably of zoom lens.
Existing focus control is generally gear focus adjusting mechanism, and gear focus adjusting mechanism cost is high, and its gear drive one
As there is hysterisis error, influence focusing accuracy to a certain extent.
The content of the invention
The present invention provides a screw thread focus control, can solve the problems, such as that prior art is present, and the present invention provides a kind of focusing
Precision is higher, image quality is more preferable, cost is low, can descend screw thread focus control of the image quality not by ectocine for a long time.
To achieve these goals, screw thread focus control of the invention, including：One pedestal, a CMOS
(Complementary Metal-Oxide Semiconductor abbreviation, metal oxide semiconductor device) module, a mirror
Cylinder, wherein pedestal is provided with a guiding counterbore, and CMOS modules are fixed on the pedestal；Lens barrel includes a lead and multiple the
One screwed hole, the guiding counterbore on the pedestal are sleeved on described lead.Also include multiple focusing bolts, described in connection
Lens barrel and pedestal, and the lens barrel position can be adjusted along the lead direction.
It is furthermore preferred that described pedestal one end is provided with multiple second screwed holes, it is bolted and fixes described COMS
Module is on the pedestal.
It is furthermore preferred that through hole threeth screwed hole and two at is provided with two on the pedestal, be uniformly distributed in described base
On seat, two in the focusing bolt are connected between the 3rd screwed hole, and two other in the focusing bolt is fixed on
On the through hole.
It is furthermore preferred that described in the bolt connection being fixed on through hole two on lens barrel at the first screwed hole.
It is furthermore preferred that the pedestal, lens barrel material are kirsite or aluminum alloy materials.
It is furthermore preferred that the focusing bolt, pedestal, on lens barrel screw thread closely-pitched away from for 0.4mm or 0.45mm or 0.5mm.
The screw thread focus control of the present invention rotates focusing bolt in focusing, using inner hexagon spanner, and band moving base is along mirror
The lead direction movement of cylinder, the lead of lens barrel and the guiding counterbore fit clearance of pedestal are small, ensure Gao Ping during its adjustment
Whole degree.
The screw thread focus control of the present invention is arranged on pedestal, and is controlled using the lead and foot guide counterbore of lens barrel
It is oriented to, by focusing, bolt realizes focusing, so as to improve focusing accuracy and imaging image quality.
Brief description of the drawings
Fig. 1 is assembling schematic diagram of the present invention；
Fig. 2 is the decomposition texture schematic diagram of the present invention.
Embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Fig. 1 and Fig. 2 are please also refer to, the invention provides a kind of screw thread focus control, the screw thread focus control includes more
Individual fastening bolt 1, a CMOS modules 2, a pedestal 3, multiple focusing lens barrels 5 of bolt 4 one, wherein pedestal 3 are provided with a guiding and sunk
Hole 31, CMOS modules 2 are fixed on one end of the pedestal 3 by multiple fastening bolts 1, and CMOS modules 2 are shaped as rectangular edges, tightly
Fixing bolt 1 can be 4 pieces, and the position of bolt hole is uniformly distributed.
The one end of pedestal 3 is provided with multiple second screwed holes, is connected by fastening bolt 1 and fixed COMS modules are in the pedestal
On.
Lens barrel 5 includes a lead 52 and multiple first screwed holes 51, can be specifically two the first screwed holes 51, institute
State the guiding counterbore 31 on pedestal 3 to be sleeved on the lead 52, the complete assembling of row is closed, and enables to pedestal 3 can be along guiding
Post 52 moves.
The screw thread focus control of the present invention, is provided with two through hole 33 at the 3rd screwed hole 32 and two, uniformly on pedestal 3
It is distributed on the other end of described pedestal 3, two of focusing bolt 4 are connected between the 3rd screwed hole 32, and pass through pedestal 3
The other end touch the end faces of object lens 5, two other of focusing bolt 4 is then fixed on susceptor through-holes 33, and passes through base
The through hole 33 of 3 other ends of seat is connected to the first screwed hole (51) at 5 liang of object lens, goes into connection.
Screw thread focus control provided by the invention, its pedestal 3, the material of lens barrel 5 are kirsite or aluminum alloy materials.Due to material
Expect that hardness is larger, focus adjusting mechanism is unlikely to deform in use, can effectively reduce the influence to image quality.
Screw thread focus control provided by the invention, its bolt 4 of focusing, pedestal 3, on lens barrel 5 screw thread closely-pitched away from for 0.2mm
~0.5mm.Because pitch is small, regulation is more steady, and even if screw of being focused in use has translated, the displacement of pedestal 3 is very
It is small, thus for a long time without using or when being given a shock influence, change in displacement is also very small, therefore image quality will not be affected, from
And it ensure that focusing accuracy.
The screw thread focus control of the present invention rotates focusing bolt 4, band moving base 3 edge in focusing, using inner hexagon spanner
The lead (52) of lens barrel 5 is mobile, and the lead 52 of lens barrel 5 and the fit clearance of guiding counterbore 31 of pedestal 3 are small, ensure its adjustment
When high-flatness.Screw thread focus control is arranged on pedestal 3, by rotating bolt 4 of focusing, adjusts the position of pedestal, simultaneously
Accurately it is oriented to using between the lead 52 of lens barrel 5 and the guiding counterbore 31 of pedestal 3, by small gap control accuracy, so that
Realize that focusing flatness is good, precision is high, imaging image quality clearly effect.
The above is only the preferred embodiment of the present invention, protection scope of the present invention degree is not only limited to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, not as some improvements and modifications under the premise of departing from the present invention, protection model of the invention is treated as
Enclose.
Claims (6)
- A kind of 1. screw thread focus control, it is characterised in that including：One pedestal, described pedestal are provided with one and are oriented to counterbore；One CMOS modules, described CMOS modules are fixed on the pedestal；One lens barrel, described lens barrel include a lead and multiple first screwed holes, and the guiding counterbore on the pedestal is sleeved on On described lead；Multiple focusing bolts, described lens barrel and pedestal are connected, and the position of the pedestal can be adjusted along the lead direction.
- 2. a kind of screw thread focus control according to claim 1, it is characterised in that described pedestal one end is provided with multiple second Screwed hole, connected by fixing bolt and fix described COMS modules on the pedestal.
- 3. a kind of screw thread focus control according to claim 2, it is characterised in that be provided with the pedestal the 3rd at two Through hole at screwed hole and two, it is uniformly distributed on described pedestal, two in the focusing bolt are between the 3rd screwed hole Connect, two other in the focusing bolt is fixed on the through hole.
- 4. a kind of screw thread focus control according to claim 3, it is characterised in that the bolt being fixed on through hole connects Connect the first screwed hole at two on the lens barrel.
- 5. a kind of screw thread focus control according to claim 4, it is characterised in that the pedestal, lens barrel material close for zinc Gold or aluminum alloy materials.
- 6. a kind of screw thread focus control according to claim 5, it is characterised in that the focusing bolt, pedestal, lens barrel The closely-pitched of screw thread is away from for 0.2mm~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233777.2A CN107748425A (en) | 2017-11-30 | 2017-11-30 | A kind of screw thread focus control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711233777.2A CN107748425A (en) | 2017-11-30 | 2017-11-30 | A kind of screw thread focus control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107748425A true CN107748425A (en) | 2018-03-02 |
Family
ID=61249978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711233777.2A Pending CN107748425A (en) | 2017-11-30 | 2017-11-30 | A kind of screw thread focus control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107748425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392190A (en) * | 2018-04-20 | 2019-10-29 | 杭州海康威视数字技术股份有限公司 | A kind of focus control and thermal infrared imager |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0352711U (en) * | 1989-09-28 | 1991-05-22 | ||
| CN201096973Y (en) * | 2007-09-04 | 2008-08-06 | 林云才 | A telescope focusing machine |
| CN201207098Y (en) * | 2008-05-28 | 2009-03-11 | 南京信息职业技术学院 | Microscope focusing mechanism |
| KR20090078475A (en) * | 2008-01-15 | 2009-07-20 | 삼성전기주식회사 | Camera module |
| CN201662646U (en) * | 2010-03-31 | 2010-12-01 | 洪政男 | Manual focusing zoom lens |
| CN103293630A (en) * | 2013-06-04 | 2013-09-11 | 四川艾普视达数码科技有限公司 | Threaded focusing mechanism |
| KR20150118427A (en) * | 2014-04-14 | 2015-10-22 | (주)하이비젼시스템 | Focus regulator and focus regulating method of camera module |
| CN207473172U (en) * | 2017-11-30 | 2018-06-08 | 江苏康尚生物医疗科技有限公司 | A kind of screw thread focus control |
-
2017
- 2017-11-30 CN CN201711233777.2A patent/CN107748425A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0352711U (en) * | 1989-09-28 | 1991-05-22 | ||
| CN201096973Y (en) * | 2007-09-04 | 2008-08-06 | 林云才 | A telescope focusing machine |
| KR20090078475A (en) * | 2008-01-15 | 2009-07-20 | 삼성전기주식회사 | Camera module |
| CN201207098Y (en) * | 2008-05-28 | 2009-03-11 | 南京信息职业技术学院 | Microscope focusing mechanism |
| CN201662646U (en) * | 2010-03-31 | 2010-12-01 | 洪政男 | Manual focusing zoom lens |
| CN103293630A (en) * | 2013-06-04 | 2013-09-11 | 四川艾普视达数码科技有限公司 | Threaded focusing mechanism |
| KR20150118427A (en) * | 2014-04-14 | 2015-10-22 | (주)하이비젼시스템 | Focus regulator and focus regulating method of camera module |
| CN207473172U (en) * | 2017-11-30 | 2018-06-08 | 江苏康尚生物医疗科技有限公司 | A kind of screw thread focus control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392190A (en) * | 2018-04-20 | 2019-10-29 | 杭州海康威视数字技术股份有限公司 | A kind of focus control and thermal infrared imager |
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