CN2731481Y - Lens cone - Google Patents
Lens cone Download PDFInfo
- Publication number
- CN2731481Y CN2731481Y CN 200420083780 CN200420083780U CN2731481Y CN 2731481 Y CN2731481 Y CN 2731481Y CN 200420083780 CN200420083780 CN 200420083780 CN 200420083780 U CN200420083780 U CN 200420083780U CN 2731481 Y CN2731481 Y CN 2731481Y
- Authority
- CN
- China
- Prior art keywords
- lens
- body tube
- tube device
- lens barrel
- collar
- 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.)
- Expired - Lifetime
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- Lens Barrels (AREA)
Abstract
The utility model discloses a lens cone device, comprising a lens barrel and more than two lens module sets. The lens barrel which is provided with internal threads is cylindric. External threads which are arranged inside the lens barrel are arranged on the lens module sets. And the external threads match the internal threads. More accurate required space between lens module sets can be realized by the thread structure. And span adjustment is convenient.
Description
[technical field]
The utility model is about a kind of body tube device, especially about a kind of body tube device that is used for camera.
[background technology]
The lens imaging quality is one of key factor that influences the camera imaging quality, the camera lens of camera generally is made up of some body tube devices, each body tube device comprises a lens barrel and some lens, separated by a distance between each lens, the parameters of setting when reaching optical design such as lens focus, the accuracy of this spacing is one of key factor of guaranteeing lens imaging quality.
The generation of spacing is to adopt following two kinds of methods between each lens of existing body tube device: one, see also Fig. 1, directly the side on lens 3 is provided with a flange 1, with so that between each lens 3 mutually across a certain distance; Its two, see also Fig. 2, clipping room spacer ring 2 is in order to produce the spacing of 4 on lens between each lens 4.Yet the spacing of utilizing above-mentioned first method to produce between each lens 3 has following shortcoming, and lens 3 structures are incited somebody to action very complicated and are easy to generate ghost and parasitic light; This flange 1 differs too big with the thickness of lens 3 center sections, easily produces defectives such as penetrating inhomogeneous and lack of fill in lens 3 ejection formation processes.The spacing of utilizing above-mentioned second method to produce each lens 4 has following shortcoming, and part is more, will produce error accumulation during assembling, influences the camera lens quality; Assemble time-consumingly, cost is higher.
In view of above shortcoming, be necessary to provide a kind of lens arrangement simple, easy to assembly and lower-cost body tube device.
[summary of the invention]
The purpose of this utility model is to provide a kind of lens arrangement simple, easy to assembly and lower-cost body tube device.
The utility model body tube device comprises a lens barrel and a lens module, and this lens barrel is cylindric, is provided with internal thread in it; This lens module is provided with external thread, is positioned at this lens barrel, and this external thread and above-mentioned screw-internal thread fit.
Compare prior art, body tube device precision of the present utility model is higher, the spacing between assembling and lens is easy to adjust, cost is lower.
[description of drawings]
Fig. 1 is the structural representation of an existing body tube device;
Fig. 2 is the structural representation of another existing body tube device;
Fig. 3 is the structural representation of the utility model body tube device.
[embodiment]
The utility model body tube device comprises a lens barrel 10, three lens 12 and three collars 120, and these three lens 12 and this three collar 120 all place in this lens barrel 10.
Lens barrel 10 is cylindric, is provided with internal thread 100 in it.
These lens 12 are placed in this collar 120, and connect as one with the collar 120 usefulness glue, and form the lens module; This collar 120 is provided with external thread 124, this external thread 124 cooperates with internal thread 100, this collar 120 comprises a surface 126, and this surface 126 is provided with a depression 128, and this depression 128 is distributed on the collar 120, when assembling this body tube device, by the collar 120 of these 128 clamping band lens 12 that cave in, so that these three lens 12 are screwed in respectively in the lens barrel 10, so, these three lens 12 can be assembled the accurate spacing that obtains being scheduled to by helicitic texture, and this spacing can conveniently be adjusted.
Be appreciated that this collar 120 can omit, screw thread 124 directly be machined on the lens 12 get final product, form threaded eyeglass as adopting injection molding method; The position of this depression 128 is not limited on the collar 120, and the surface that also can be arranged at lens is near the circumference place; The number of these lens 12 is not limited to 3, can be the arbitrary number more than 2; Depression 128 can adopt a projection to replace, and only needs it can make things convenient for the clamping lens to get final product; Depression 128 also can be omitted, and operates by modes such as vacuum suction.
Claims (4)
1. body tube device, it comprises: a lens barrel and a lens module is characterized in that: this lens barrel is cylindric, is provided with internal thread in it, and this lens module is provided with external thread, and it places in this lens barrel, and this external thread and above-mentioned screw-internal thread fit.
2. body tube device as claimed in claim 1 is characterized in that: the place of keeping to the side at least one surface of this lens module is provided with a depression.
3. body tube device as claimed in claim 1 is characterized in that: this lens module comprises a collar and lens, and it connects as one by glue, and this external thread is located on the collar.
4. body tube device as claimed in claim 1 is characterized in that: the quantity of lens is at least two in this lens module, and is separated by one between each lens at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083780 CN2731481Y (en) | 2004-09-02 | 2004-09-02 | Lens cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083780 CN2731481Y (en) | 2004-09-02 | 2004-09-02 | Lens cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731481Y true CN2731481Y (en) | 2005-10-05 |
Family
ID=35051811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420083780 Expired - Lifetime CN2731481Y (en) | 2004-09-02 | 2004-09-02 | Lens cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731481Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7535662B2 (en) | 2006-12-14 | 2009-05-19 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Auto-focusing camera |
| CN100552485C (en) * | 2006-11-22 | 2009-10-21 | 富准精密工业(深圳)有限公司 | Embedded focus lens structure |
| CN102412501A (en) * | 2011-11-09 | 2012-04-11 | 何少敏 | Laser head |
| CN108710198A (en) * | 2018-05-29 | 2018-10-26 | 吴伟祥 | A kind of microscope spherical-aberration correction method |
| CN110873992A (en) * | 2018-08-29 | 2020-03-10 | 三赢科技（深圳）有限公司 | Camera module |
-
2004
- 2004-09-02 CN CN 200420083780 patent/CN2731481Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100552485C (en) * | 2006-11-22 | 2009-10-21 | 富准精密工业(深圳)有限公司 | Embedded focus lens structure |
| US7535662B2 (en) | 2006-12-14 | 2009-05-19 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Auto-focusing camera |
| CN102412501A (en) * | 2011-11-09 | 2012-04-11 | 何少敏 | Laser head |
| CN108710198A (en) * | 2018-05-29 | 2018-10-26 | 吴伟祥 | A kind of microscope spherical-aberration correction method |
| CN108710198B (en) * | 2018-05-29 | 2021-06-25 | 吴伟祥 | Microscope spherical aberration correction method |
| CN110873992A (en) * | 2018-08-29 | 2020-03-10 | 三赢科技（深圳）有限公司 | Camera module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140902 Granted publication date: 20051005 |