CN209044146U - A kind of antivibration lens focusing mechanism of optical axis stable - Google Patents
A kind of antivibration lens focusing mechanism of optical axis stable Download PDFInfo
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- CN209044146U CN209044146U CN201821920085.5U CN201821920085U CN209044146U CN 209044146 U CN209044146 U CN 209044146U CN 201821920085 U CN201821920085 U CN 201821920085U CN 209044146 U CN209044146 U CN 209044146U
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- lens
- focusing
- handwheel
- ring
- focusing drum
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Abstract
The utility model provides a kind of antivibration lens focusing mechanism of optical axis stable, it is characterized by: microscope base is internally provided with lens barrel, lens barrel is internally provided with focusing drum, handwheel is provided with outside microscope base, handwheel inner surface is provided with internal screw thread, handwheel outer surface is provided with several raised lines, focusing drum right end outer surface is provided with retaining ring, focusing drum is internally provided with spacer ring, the first lens are provided on the left of spacer ring, pressing ring is provided on the left of first lens, sealing ring is provided between pressing ring and the first lens, spacer ring right part is provided with the second lens, focusing drum center outer surface is provided with the externally threaded convex block of several bands, external screw thread and female thread are at cooperation, cooperation is formed by the convex block on the notch and focusing drum that design on lens barrel, simultaneously in the external screw thread of convex block upper surface setting and the female thread of handwheel inner surface at cooperation, the rotation of handwheel is become The linear motion of focusing drum completes the focusing movement of camera lens.
Description
Technical field
The utility model relates to physics classes, for the focus adjusting mechanism of optical lens, the antivibration mirror of espespecially a kind of optical axis stable
Head focus adjusting mechanism.
Background technique
In the use process of camera lens, it usually needs it is adjusted focal length to obtain good visual angle or clearly image,
The lens focusing of the prior art is linked by guide pin, is in simple terms exactly to be equipped with guide pin on focusing drum, is processed on lens barrel
There is helicla flute, guide pin and helicla flute, which are formed, to be cooperated, and drives guide pin that the rotation of handwheel is become focusing drum by the straight trough on handwheel
Linear motion, such focus adjusting mechanism is the common focusing patterns that the prior art uses, but in camera lens use process, due to
Camera lens, which is impacted or shaken, frequently can lead to guide pin loosening, cannot keep stabilization after causing the Focussing of camera lens, influences mirror
The using effect and service life of head.Summary of the invention
The purpose of this utility model is to provide a kind of antivibration lens focusing mechanism of optical axis stable, mechanism design is reasonable
Specification, it is easy to use, cooperation is formed by the convex block on the notch and focusing drum that design on lens barrel, while in convex block upper surface
The external screw thread of setting and the female thread of handwheel inner surface complete the linear motion that the rotation of handwheel becomes focusing drum at cooperation
The focusing of camera lens acts.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of antivibration lens focusing mechanism of optical axis stable, including microscope base, lens barrel, focusing drum, it is characterised in that: in microscope base
Portion is provided with lens barrel, and lens barrel is internally provided with focusing drum, and handwheel is provided with outside microscope base, and handwheel inner surface is provided with internal screw thread,
Handwheel outer surface is provided with several raised lines, and focusing drum right end outer surface is provided with retaining ring, and focusing drum is internally provided with spacer ring, spacer ring
Left side is provided with the first lens, is provided with pressing ring on the left of the first lens, sealing ring, spacer ring are provided between pressing ring and the first lens
Right part is provided with the second lens, and focusing drum center outer surface is provided with the externally threaded convex block of several bands, external screw thread and female thread
At cooperation.
The sealing ring is hollow rubber structure as a further improvement of the utility model,.
The beneficial effects of the utility model embody a concentrated reflection of, and the first lens and the second lens are fixed by spacer ring,
The sealing ring with buffer function is provided between the first lens and pressing ring simultaneously, the two, which forms one, has buffering effect
Sealing function, such structure can by pressing ring and the first lens contact firmly change into it is soft contact, prevent pressing ring and first saturating
The case where mirror contact, formation creep or the first lens stress are concentrated, and playing well in focusing zooming procedure
Buffer function, there is certain antivibration effect, while similarly having the function of antivibration in camera lens transportational process, using
Groove is opened up on lens barrel to be threadedly engaged with the convex block formation on focusing drum, in the case where rotating handwheel, entire focusing drum edge
Straight line is moved, and optical axis is stable in the whole process, and the retaining ring designed on the right side of focusing drum, is moved in focusing drum
To after extreme position, barrier effect can be played, prevents focusing drum from falling off.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than all real
Apply example, based on the embodiments of the present invention, those of ordinary skill in the art without making creative work, institute
The every other embodiment obtained, belongs to scope of protection of the utility model.
A kind of antivibration lens focusing mechanism of optical axis stable, including microscope base 9, lens barrel 7, focusing drum 1, it is characterised in that: mirror
Seat 9 is internally provided with lens barrel 7, and lens barrel 7 is internally provided with focusing drum 1, and handwheel 4 is provided with outside microscope base 9, and 4 inner surface of handwheel is set
It is equipped with internal screw thread, 4 outer surface of handwheel is provided with several raised lines 12, and 1 right end outer surface of focusing drum is provided with retaining ring 8, in focusing drum 1
Portion is provided with spacer ring 11, and the first lens 10 are provided on the left of spacer ring 11, and pressing ring 2, pressing ring 2 and are provided on the left of the first lens 10
Sealing ring 3 is provided between one lens 10,11 right part of spacer ring is provided with the second lens 13, and 1 center outer surface of focusing drum is provided with
Several externally threaded 5 convex blocks 6 of band, external screw thread 5 and female thread are at cooperation, by spacer ring 11 by the first lens 10 and the second lens
13 are fixed, while the sealing ring 3 with buffer function is provided between the first lens 10 and pressing ring 2, and the two forms one
Pressing ring 2 can be changed into soft connect with contacting firmly for the first lens 10 by a sealing function with buffering effect, such structure
The case where touching, prevents pressing ring 2 from contacting with the first lens 10, and formation creep or 10 stress of the first lens are concentrated, Er Qie
Play the role of good buffer function in focusing zooming procedure, there is certain antivibration, while in camera lens transportational process
Equally have the function of antivibration, is threadedly engaged, is being turned with the formation of convex block 6 on focusing drum 1 using groove is opened up on lens barrel 7
It starts in the case where wheel 4, entire focusing drum 1 is moved along straight line, and optical axis is stable in the whole process, and is being focused
The retaining ring 8 that 1 right side of cylinder is designed can play barrier effect after focusing drum 1 moves to extreme position, prevent focusing drum 1 from falling off.
As the further preferred scheme of the utility model, the sealing ring 3 is hollow rubber structure, hollow sealing
Circle 3 can play stronger buffer function.
Claims (2)
1. a kind of antivibration lens focusing mechanism of optical axis stable, including microscope base (9), lens barrel (7), focusing drum (1), feature exists
In: microscope base (9) is internally provided with lens barrel (7), and lens barrel (7) is internally provided with focusing drum (1), is provided with handwheel outside microscope base (9)
(4), handwheel (4) inner surface is provided with internal screw thread, and handwheel (4) outer surface is provided with several raised lines (12), outside focusing drum (1) right end
Surface is provided with retaining ring (8), and focusing drum (1) is internally provided with spacer ring (11), is provided with the first lens (10) on the left of spacer ring (11),
It is provided with pressing ring (2) on the left of first lens (10), sealing ring (3), spacer ring is provided between pressing ring (2) and the first lens (10)
(11) right part is provided with the second lens (13), and focusing drum (1) center outer surface is provided with externally threaded (5) convex block (6) of several bands,
External screw thread (5) and female thread are at cooperation.
2. a kind of antivibration lens focusing mechanism of optical axis stable according to claim 1, it is characterised in that: the sealing ring
It (3) is hollow rubber structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920085.5U CN209044146U (en) | 2018-11-21 | 2018-11-21 | A kind of antivibration lens focusing mechanism of optical axis stable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920085.5U CN209044146U (en) | 2018-11-21 | 2018-11-21 | A kind of antivibration lens focusing mechanism of optical axis stable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209044146U true CN209044146U (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920085.5U Active CN209044146U (en) | 2018-11-21 | 2018-11-21 | A kind of antivibration lens focusing mechanism of optical axis stable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209044146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117215029A (en) * | 2023-11-08 | 2023-12-12 | 江西省爱成海光学科技有限公司 | A correct auxiliary knob device for optical lens plastic part |
-
2018
- 2018-11-21 CN CN201821920085.5U patent/CN209044146U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117215029A (en) * | 2023-11-08 | 2023-12-12 | 江西省爱成海光学科技有限公司 | A correct auxiliary knob device for optical lens plastic part |
| CN117215029B (en) * | 2023-11-08 | 2024-02-06 | 江西省爱成海光学科技有限公司 | A correct auxiliary knob device for optical lens plastic part |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A stable anti vibration lens focusing mechanism with optical axis Effective date of registration: 20230707 Granted publication date: 20190628 Pledgee: Hua Xia Bank Co.,Ltd. Kunming Branch Pledgor: KUNMING QUANBO INFRARED SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980047825 |