CN207133490U - A kind of centering device of lens - Google Patents
A kind of centering device of lens Download PDFInfo
- Publication number
- CN207133490U CN207133490U CN201720701873.4U CN201720701873U CN207133490U CN 207133490 U CN207133490 U CN 207133490U CN 201720701873 U CN201720701873 U CN 201720701873U CN 207133490 U CN207133490 U CN 207133490U
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- CN
- China
- Prior art keywords
- lens
- lens barrel
- trim ring
- taper surface
- stage portion
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Abstract
A kind of centering device of lens, including lens barrel and guiding trim ring are the utility model is related to, trim ring is oriented to and is installed in lens barrel, it is rotationally symmetric body to be oriented to trim ring and lens barrel, and lens barrel inwall forms stage portion；It is oriented to the taper surface that trim ring inner surface is provided with the rotational symmetry of stage portion；The rotation axes of symmetry of taper surface and the center line of lens barrel are located on the same line；Lens are installed between taper surface and stage portion.The utility model lens barrel and guiding trim ring are rotationally symmetric body, and fixed middle effect is good, by lens arrangement at taper surface and end difference, realizes the fixation of lens position, while ensureing lens performance, avoid the adverse effect come using adhesive tape in the prior art；And the setting of taper surface make it that lens are changeable, so that lens barrel strong applicability, lens can also produce centripetal force due to the pressure of taper surface, adaptively be adjusted to lens barrel centerline direction, can be realized in the case of efficient assembling high-accuracy large-scale lens it is fixed in, improve the performance of camera lens.
Description
Technical field
Optics cold processing technique field is the utility model is related to, specifically a kind of centering device of lens.
Background technology
Lens are the optical elements that the surface made of transparency material is piece, and camera lens is made up of several lens
, there are two kinds of plastic lens and glass lens, glass lens is more expensive than plastic cement, and the camera lens of usual camera is configured with：1P、2P、
1G1P, 1G2P, 2G2P, 4G etc., lens are more, and cost is higher, therefore the camera of a quality better should use glass mirror
Head, its imaging effect is better than plastic cement camera lens, is played an important role in fields such as astronomy, military affairs, traffic, medical science, art.
In order to ensure using effect of the glass lens in camera lens, the glass lens that will generally be placed in metal lens barrel and
The center of metal lens barrel is almost arranged concentrically, and in order to be further ensured that the effect being arranged concentrically, reduces deviation, and usual glass is saturating
The external diameter of mirror and the internal diameter of metal lens barrel are similar, to cause the gap between speculum cylinder and glass lens relatively small, but
It is due to that the thermal coefficient of expansion of glass lens is much smaller than the thermal coefficient of expansion of metal lens barrel, when ambient temperature reduction, metal lens barrel
By cold events, the shrinkage difference value of glass lens and metal lens barrel is much larger than the clipping room between glass lens and metal lens barrel before this
Gap, cause glass lens pressure-rupturable, reduce the service life of lens；If between increasing between glass lens and metal lens barrel
The mode of gap solves the above problems, and may result in glass lens external diameter and metal lens barrel internal diameter difference is larger and easily cause lens
It is eccentric, it is impossible to meet the use of people.
In order to solve the above problems, in the prior art by the way that glass lens is designed to eccentric insensitive, with solution
Problem is stated, but such a settling mode effect is poor, have impact on the performance of camera lens to a certain extent, is unfavorable for the camera lens commercially
Popularization and application；Also have by increasing the installation gap between glass lens and metal lens barrel to solve to expand with heat and contract with cold what is brought
Problem, then glass lens and metal lens barrel are fixed together by dispensing or other fixed forms, such a mode is not only given birth to
It is low to produce efficiency, and camera lens once occurs to need to overhaul, is difficult to realize disassembling, assembling and replacing, it is bigger to camera lens damage, to consumer
Detrimental effect is all brought with producer, is unfavorable for the popularization and application of the camera lens commercially.
The content of the invention
The utility model be in order to overcome it is above-mentioned in the prior art the defects of, there is provided a kind of centering device of lens, the use
In the centering device simple and ingenious structure of lens, dismounting maintenance is convenient, can effectively improve the operating efficiency of operating personnel, moreover it is possible to protect
The quality of camera lens is demonstrate,proved, the performance of camera lens is improved, is advantageous to the popularization and application of camera lens commercially.
In order to realize foregoing invention purpose, the utility model uses following technical scheme:A kind of centering device of lens, bag
Include lens barrel and be oriented to trim ring, the guiding trim ring is installed in lens barrel, and the guiding trim ring and lens barrel are rotationally symmetric body；Institute
State lens barrel inwall and form stage portion, the taper surface for being oriented to trim ring inner surface and being provided with the rotational symmetry of the stage portion；
The center line of the rotation axes of symmetry of the taper surface and the lens barrel is located on the same line；The lens are installed on taper surface
Between stage portion.
As a kind of preferred scheme of the present utility model, the outer wall for being oriented to trim ring forms thread segment；Thread segment is with setting
Spun in the internal thread screw thread of lens barrel inner surface.
As a kind of preferred scheme of the present utility model, described be oriented between the thread segment and inner face of trim ring passes through smooth section
Transition, smooth section are adapted with the inner surface of lens barrel.
As a kind of preferred scheme of the present utility model, the inner face for being oriented to trim ring towards stage portion, inner face with
Stage portion be arranged in parallel.
As a kind of preferred scheme of the present utility model, the end face of the stage portion of the lens barrel and the center line of the lens barrel
It is vertically arranged.
As a kind of preferred scheme of the present utility model, the guiding trim ring is provided with knob, and the knob is arranged on remote
On end face from the guiding trim ring of taper surface.
Compared with prior art, the beneficial effects of the utility model are：The fixed middle dress for being used for lens in the utility model
Put, lens barrel and guiding trim ring are rotationally symmetric body, and fixed middle effect is good, and lens arrangement is being oriented at trim ring and lens barrel inner surface
Stage portion at, realize the fixation of lens location, while ensureing lens performance, avoid using adhesive tape in the prior art
Adverse effect；And the setting of taper surface make it that lens are changeable so that lens barrel strong applicability, lens can also be due to taper surfaces
Pressure produces centripetal force, is adaptively adjusted to lens barrel centerline direction, can realize high-precision lenses in the case of efficient assembling
It is fixed in, improve the performance of camera lens.
Brief description of the drawings
Fig. 1 is the structural representation for the centering device for being used for lens in the utility model embodiment；
Fig. 2 is the structural representation for the centering device for being used for lens in the utility model embodiment；
Fig. 3 is the structural representation for being oriented to trim ring in the centering device of lens in the utility model embodiment 1.
Reference：1st, it is oriented to trim ring；11st, thread segment；12nd, smooth section；13rd, taper surface；14th, inner face；2nd, lens；3、
Lens barrel；31st, stage portion.
Embodiment
The utility model embodiment is elaborated below in conjunction with the accompanying drawings.
Embodiment：As shown in Figure 1 to Figure 3, a kind of centering device of lens, including lens barrel 3 and guiding trim ring 1, it is above-mentioned to lead
It is installed on to trim ring 1 in lens barrel 3, above-mentioned guiding trim ring 1 and lens barrel 3 are rotationally symmetric body, and the above-mentioned inner surface of guiding trim ring 1 is set
There is a taper surface 13 of rotational symmetry, it is straight that the center line of the rotation axes of symmetry of above-mentioned taper surface 13 and above-mentioned lens barrel 3 is located at same
On line, the above-mentioned inwall of lens barrel 3 forms stage portion 31, and said lens 2 are installed between taper surface 13 and stage portion 31.
In order to realize fast assembling-disassembling, the operating efficiency of staff is improved, is oriented in this implementation between trim ring 1 and lens barrel 3
It can be spun using screw thread, screw thread spins installation operation rapid and convenient, and stability is high, is set on the above-mentioned outer surface of guiding trim ring 1
External screw thread is put, the internal thread being adapted with above-mentioned external screw thread is set at the inner surface of lens barrel 3, realizes that screw thread spins.
In order to form specific installation position, the fixation of the installation site of lens 2 is realized, is additionally provided with the inner surface of lens barrel 3
Stage portion 31, when lens 2 are installed, the both sides end face of lens 2 is connected between above-mentioned taper surface 13 and stage portion 31, realizes lens
The fixation of 2 positions, and the setting of taper surface 13 can adjust the position of guiding trim ring 1 according to the size of lens 2, make lens barrel 3 should
It is wider with scope.
The design of taper surface 13 causes lens can also be because the pressure of taper surface 13 produces centripetal force, adaptively to lens barrel 3
Centerline direction adjusts, can be realized in the case of efficient assembling high-precision lenses 2 it is fixed in, improve the performance of camera lens.
With lens 2 are sticked on lens barrel 3 or make lens 2 to eccentric insensitive by gluing mode in the prior art
Carry out the problem of solution must not be calmly middle to compare, the centering device in the present embodiment is only engaged and just solved by being oriented to trim ring 1 and lens barrel 3
Determine the problem of described above, the apparatus structure is simple, convenient disassembly, and lens performance is high, is advantageous to camera lens pushing away commercially
Wide and application.
In order to realize the concentric locating for being oriented to trim ring 1 and lens barrel 3, above-mentioned guiding trim ring 1 also includes and above-mentioned screw thread
The smooth section 12 that section 11 is structure as a whole, smooth section 12 are located between thread segment 11 and stage portion 31, are set close to stage portion 31,
Its realize screw thread spin purpose while, moreover it is possible to the centre of location is adapted to inside lens barrel 3 by smooth section 12.
When being installed due to being oriented to trim ring 1, smooth section 12 is put in lens barrel 3 in advance, is in contact with lens 2, then above-mentioned taper
Face 13 is arranged at the inner surface of smooth section 12.
As depicted in figs. 1 and 2, lens 2 can be concavees lens, or convex lens, lens 2 can be by glass or
Eyeglass made of other optical materials, the centering device of this implementation have a wide range of application, and special limit is not being done to the material of lens 2
It is fixed, be advantageous to the popularization of the centering device commercially.
Due to lens 2 in use, higher to light sensitivity, slightly deviation may strong influence camera lens
Performance, in order to ensure that the center line of smooth section 12 is straight line, and same straight line can be centrally located at lens 2
On, above-mentioned smooth section 12 is the rotationally symmetric body formed around the guiding center line of trim ring 1 rotation.
In order to ensure camera lens using effect, above-mentioned lens barrel 3 is alternatively forms rotation by rotary shaft rotation of the center line of lens barrel 3
Symmetric body so that the center line of lens 2, the center line for the center line and lens barrel 3 for being oriented to trim ring 1 are respectively positioned on same straight line,
To ensure the performance of camera lens.
As described above, the rotation axes of symmetry of above-mentioned taper surface 13 is center of the center line with above-mentioned lens barrel 3 for being oriented to trim ring 1
Line is located on the same line.
In order to realize Fast Installation, improve the operating efficiency of staff, the end of above-mentioned smooth section 12 i.e. with it is saturating
The end that mirror 2 is in contact is additionally provided with inner face 14, and the end face and the end face of stage portion 31 of inner face 14 be arranged in parallel, avoided to saturating
Stress concentration causes lens 2 to damage when mirror 2 realizes fixation.
The end face of stage portion 31 and the central axis of above-mentioned lens barrel 3 are set, and because lens 2 are quite sensitive to light, are
Avoid stage portion 31 from being obliquely installed influence light, make troubles in use to camera lens, stage portion 31 in the present embodiment
End face and lens barrel 3 central axis set.
It is oriented to trim ring 1 and is provided with knob, above-mentioned knob is mounted remotely from the end face of guiding trim ring 1 of taper surface 13, work
Making personnel or user of service directly can be directed to trim ring 1 by turn knob and be installed at corresponding installation position.
The utility model is applied to the installation of large scale lens, can effectively ensure that the installation effect of large scale lens, enters
One step ensures the performance of the camera lens using large scale lens.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model；Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Although reference in figure has more been used herein：1st, it is oriented to trim ring；11st, thread segment；12nd, smooth section；13rd, bore
Shape face；14th, inner face；2nd, lens；3rd, lens barrel；31st, the term such as stage portion, but it is not precluded from the possibility using other terms.
It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It is construed as any one
Additional limitation is all disagreed with the utility model spirit.
Claims (6)
- A kind of 1. centering device of lens, it is characterised in that：Including lens barrel (3) and trim ring (1) is oriented to, the guiding trim ring (1) It is installed in lens barrel (3), the guiding trim ring (1) and lens barrel (3) are rotationally symmetric body；Lens barrel (3) inwall forms platform Rank portion (31), the taper surface (13) for being oriented to the rotational symmetry that the stage portion (31) is provided with trim ring (1), the cone The center line of the rotation axes of symmetry in shape face (13) and the lens barrel (3) is located on the same line；The lens (2) are installed on cone Between shape face (13) and stage portion (31).
- A kind of 2. centering device of lens according to claim 1, it is characterised in that：The outer wall for being oriented to trim ring (1) Thread segment (11) is formed, thread segment (11) spins with the internal thread screw thread located at lens barrel (3) inner surface.
- A kind of 3. centering device of lens according to claim 2, it is characterised in that：The screw thread for being oriented to trim ring (1) It is adapted between section (11) and inner face (14) by smooth section (12) transition, smooth section (12) with the inner surface of lens barrel (3).
- A kind of 4. centering device of lens according to claim any one of 1-3, it is characterised in that：The guiding trim ring (1) inner face (14) be arranged in parallel towards stage portion (31), inner face (14) with stage portion (31).
- A kind of 5. centering device of lens according to claim 1 or 2, it is characterised in that：The stage portion of the lens barrel (3) (31) central axis with the lens barrel (3) is set.
- A kind of 6. centering device of lens according to claim 1 or 2 or 3, it is characterised in that：The guiding trim ring (1) Knob is provided with, the knob is mounted remotely from the end face of guiding trim ring (1) of taper surface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720701873.4U CN207133490U (en) | 2017-06-16 | 2017-06-16 | A kind of centering device of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720701873.4U CN207133490U (en) | 2017-06-16 | 2017-06-16 | A kind of centering device of lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207133490U true CN207133490U (en) | 2018-03-23 |
Family
ID=61631934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720701873.4U Expired - Fee Related CN207133490U (en) | 2017-06-16 | 2017-06-16 | A kind of centering device of lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207133490U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901274A (en) * | 2019-03-27 | 2019-06-18 | 海南大学 | The optical lens mounting device and optical element interval control method adaptively felt relieved |
| CN110837165A (en) * | 2018-08-16 | 2020-02-25 | 宁波舜宇车载光学技术有限公司 | Optical lens and assembling method thereof |
| CN111596431A (en) * | 2020-06-12 | 2020-08-28 | 青岛镭创光电技术有限公司 | Temperature compensation type plastic optical system and manufacturing method thereof |
| CN114008513A (en) * | 2020-04-17 | 2022-02-01 | 京东方科技集团股份有限公司 | Focusing assembly and head-mounted display device |
| JP2022520483A (en) * | 2019-02-18 | 2022-03-30 | アンスティチュ・ナシオナル・ドプティーク | Centering of optics using edge contact mounting |
-
2017
- 2017-06-16 CN CN201720701873.4U patent/CN207133490U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837165A (en) * | 2018-08-16 | 2020-02-25 | 宁波舜宇车载光学技术有限公司 | Optical lens and assembling method thereof |
| JP2022520483A (en) * | 2019-02-18 | 2022-03-30 | アンスティチュ・ナシオナル・ドプティーク | Centering of optics using edge contact mounting |
| JP7417616B2 (en) | 2019-02-18 | 2024-01-18 | アンスティチュ・ナシオナル・ドプティーク | Centering optics using edge-contact mounting |
| CN109901274A (en) * | 2019-03-27 | 2019-06-18 | 海南大学 | The optical lens mounting device and optical element interval control method adaptively felt relieved |
| CN109901274B (en) * | 2019-03-27 | 2023-08-22 | 海南大学 | Self-adaptive centering optical lens mounting device and optical element interval control method |
| CN114008513A (en) * | 2020-04-17 | 2022-02-01 | 京东方科技集团股份有限公司 | Focusing assembly and head-mounted display device |
| US11947181B2 (en) | 2020-04-17 | 2024-04-02 | Beijing Boe Optoelectronics Technology Co., Ltd. | Focusing assembly and head-mounted display device |
| CN114008513B (en) * | 2020-04-17 | 2024-05-07 | 京东方科技集团股份有限公司 | Focusing assembly and head-mounted display device |
| CN111596431A (en) * | 2020-06-12 | 2020-08-28 | 青岛镭创光电技术有限公司 | Temperature compensation type plastic optical system and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20210616 |