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 PDF

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Publication number
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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China
Prior art keywords
lens
focusing
handwheel
ring
focusing drum
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CN201821920085.5U
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Chinese (zh)
Inventor
张莹昭
金有平
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Infrared Science And Technology Ltd Of Kunming All-Wave
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Infrared Science And Technology Ltd Of Kunming All-Wave
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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

A kind of antivibration lens focusing mechanism of optical axis stable
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.
CN201821920085.5U 2018-11-21 2018-11-21 A kind of antivibration lens focusing mechanism of optical axis stable Active CN209044146U (en)

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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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)

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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