CN101666899A - Spacer ring and lens module using same - Google Patents
Spacer ring and lens module using same Download PDFInfo
- Publication number
- CN101666899A CN101666899A CN200810304362A CN200810304362A CN101666899A CN 101666899 A CN101666899 A CN 101666899A CN 200810304362 A CN200810304362 A CN 200810304362A CN 200810304362 A CN200810304362 A CN 200810304362A CN 101666899 A CN101666899 A CN 101666899A
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- CN
- China
- Prior art keywords
- ring
- lens module
- camera lens
- spaced ring
- circular hole
- 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.)
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- Lens Barrels (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides a spacer ring for a lens module. The center of the spacer ring is provided with a circular hole, the hole wall of the circular hole is provided with an annular groove along thecircumferential direction of the circular hole, the section of the annular groove is in a V shape with an apex angle larger than 50 degrees, and the surface of the annular groove adopts anti-reflection processing. The spacer ring is provided with the annular groove, the section of the annular groove is in the V shape with the apex angle larger than 50 degrees, and the surface of the annular grooveadopts the anti-reflection processing, thus light emitted to the spacer ring can be repeatedly reflected and consumed on the inner surface of the annular groove, and finally, only very few part of reflected light is emitted to an object side so as to prevent imaging quality from being influenced by ghosts formed by a large quantity of the reflected light. Besides, the invention also provides thelens module using the spacer ring.
Description
Technical field
The present invention relates to a kind of spaced ring and use the camera lens module of this spaced ring.
Background technology
Existing camera lens module generally all includes at least one spaced ring, this spaced ring is arranged between two optical elements to adjust the distance between these two optical elements, and then adjust the optical property of this camera lens module, as be arranged between two eyeglasses to adjust focal length etc.
Yet, as shown in Figure 1, camera module 1 commonly used, it comprises lens barrel 2, first eyeglass 3, spaced ring 4, second eyeglass 5, microscope base 6 and image sensor 7.Described spaced ring 4 is arranged between first eyeglass 3 and second eyeglass 5, and it is used to control distance between first eyeglass 3 and second eyeglass 5.Lens barrel 2 is by being threaded in the microscope base 6 adjusting the relative position of lens barrel 2 and microscope base 6, and the imaging surface of the formed optical system of optical mirror slip in the lens barrel 2 is dropped on the described image sensor 7.Yet part incident ray L directly enters image sensor 7 after reflecting, but enters image sensor 7 on the surface of spaced ring 4 after reflecting, thereby forms ghost, and the existence of ghost has had a strong impact on the quality of captured image.
Summary of the invention
In view of this, be necessary to provide a kind of camera lens module that improves the spaced ring of ghost and use this spaced ring.
A kind of spaced ring that is used for the camera lens module.Described spaced ring center is provided with a circular hole, at the circumferencial direction of the described circular hole in described circular hole hole wall upper edge one ring shaped slot is set, and described ring groove cross section is the V-types of drift angle greater than 50 degree, and the counnter attack optical processing is adopted on described ring groove surface.
A kind of camera lens module, it comprises lens barrel, first eyeglass, second eyeglass and spaced ring.Described first eyeglass, spaced ring and second eyeglass are contained in the described lens barrel successively.Described spaced ring center is provided with a circular hole, at the circumferencial direction of the described circular hole in described circular hole hole wall upper edge one ring shaped slot is set, and the cross section of described ring groove is the V-types of drift angle greater than 50 degree, and the counnter attack optical processing is adopted on described ring groove surface.
Because described spaced ring has ring groove, this ring groove cross section is the V-type of drift angle greater than 50 degree, and in the employing counnter attack optical processing of ring groove surface, so the light that is mapped on the spaced ring repeatedly can be reflected and consumes at the ring groove inside surface, finally have only the reflected light directive thing side of few part, influence image quality thereby avoided a large amount of reflection rays to form ghost.
Description of drawings
Fig. 1 is the cut-open view of existing camera module.
Fig. 2 is the cut-open view of camera module provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See also Fig. 2, the invention provides a kind of camera module 100.Described camera module 100 comprises lens barrel 11, first eyeglass 12, spaced ring 13, second eyeglass 14, microscope base 20 and image sensor 30.Wherein, described lens barrel 11, first eyeglass 12, spaced ring 13, second eyeglass 14 constitute a camera lens module 10.Described first eyeglass 12, spaced ring 13 and second eyeglass 14 are contained in the described lens barrel 11 successively.
Described spaced ring 13 centers are provided with a circular hole 13a.Circumferencial direction at the described circular hole 13a in the hole wall 13b upper edge of described circular hole 13a is provided with a ring shaped slot 130, and described ring groove 130 cross sections are the V-type of drift angle A greater than 50 degree.Two limits that V-type is formed in described ring groove 1 30 cross sections are 131, the second limits 132, first limit.In the present embodiment, described first limit 131 is near the thing side, and the thing side included angle B of described first limit 131 and optical axis M is between 40 to 55 degree, and described second limit 132 is near the picture side, and the picture side angle C of described second limit 132 and optical axis M is between 30 to 40 degree.In the present embodiment, described drift angle A is 95 degree, and described thing side included angle B is 45 degree, and described picture side angle C is 40 degree.The counnter attack optical processing is adopted on described ring groove 130 surfaces.In the present embodiment, the hole wall 13b of described circular hole 13a adopts the counnter attack optical processing.Described spaced ring 13 adopts light absorbent to make or is formed with one deck light absorping film at the hole wall 13b of described circular hole 13a, and it can form by technologies such as anodic oxidation, vapour deposition, sputters, also can carry out cloudy surface at the hole wall 13b of described circular hole 13a and handle.In the present embodiment, described spaced ring 13 adopts light absorbent to make.Described spaced ring 13 is arranged between described first eyeglass 12 and described second eyeglass 14.Mode is fixed on the described lens barrel 11 described spaced ring 13 by glue is bonding etc.Described spaced ring 13 can one-shot forming or is adopted two semi-rings bondings to form.In the present embodiment, described spaced ring 13 one-shot formings.
Described first eyeglass 12 and second eyeglass 14 include optic 12a, 14a and non-optical division 12b, 14b.Non-optical division 12b, the 14b of described first eyeglass 12 and second eyeglass 14 is used for described first eyeglass 12 and second eyeglass 14 cooperates with spaced ring 13 and lens barrel 11.In the present embodiment, described spaced ring 13 is sandwiched between non-optical division 12b, the 14b of described first eyeglass 12 and second eyeglass 14.
Described lens barrel 11 is installed on the microscope base 20.In the present embodiment, described lens barrel 11 is spirally connected with described microscope base 20.Image sensor 30 is placed in the described microscope base 20, in the present embodiment, by circuit board 40 described image sensor 30 is placed in the described microscope base 20.
When described camera lens module 10 in when work, incident ray L can pass optic 12a, the 14a of described first eyeglass 12, second eyeglass 14 successively, most of light forms image on described image sensor 30, but still has part light L1 and can reflect on spaced ring 13 surfaces.Because spaced ring 13 is provided with the ring groove 130 that the cross section is a V-type.Found through experiments, when the drift angle A of described ring groove 130 spends greater than 50, part light L1 is repeatedly reflected by described ring groove 130 surfaces and consume, finally have only the reflected light directive thing side of few part.Thereby avoided a large amount of reflection rays to enter into image sensor 30 backs and formed ghost.
Because described spaced ring has ring groove, this ring groove cross section is the V-type of drift angle greater than 50 degree, and in the employing counnter attack optical processing of ring groove surface, so the light that is mapped on the spaced ring repeatedly can be reflected and consumes at the ring groove inside surface, finally have only the reflected light directive thing side of few part, influence image quality thereby avoided a large amount of reflection rays to form ghost.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (10)
1. spaced ring that is used for the camera lens module, described spaced ring center is provided with a circular hole, it is characterized in that, circumferencial direction at the described circular hole in described circular hole hole wall upper edge is provided with a ring shaped slot, the cross section of described ring groove is the V-type of drift angle greater than 50 degree, and the counnter attack optical processing is adopted on described ring groove surface.
2. the spaced ring that is used for the camera lens module as claimed in claim 1 is characterized in that, described ring groove has two limits, near the angle of limit of thing side and optical axis between 40 to 55 degree, near the angle of limit of picture side and optical axis 30 to 40 spend between.
3. the spaced ring that is used for the camera lens module as claimed in claim 1 is characterized in that, the material of described spaced ring is a light absorbent.
4. the spaced ring that is used for the camera lens module as claimed in claim 1 is characterized in that, described ring shaped slot surface was carried out the cloudy surface processing or covered light absorping film.
5. the spaced ring that is used for the camera lens module as claimed in claim 1 is characterized in that, described spaced ring one-shot forming or adopt two semi-rings to combine.
6. camera lens module, it comprises lens barrel, first eyeglass, second eyeglass and spaced ring, described first eyeglass, spaced ring and second eyeglass are contained in the described lens barrel successively, described spaced ring center is provided with a circular hole, it is characterized in that, circumferencial direction at the described circular hole in described circular hole hole wall upper edge is provided with a ring shaped slot, and the cross section of described ring groove is the V-type of drift angle greater than 50 degree, and the counnter attack optical processing is adopted on described ring groove surface.
7. camera lens module as claimed in claim 6 is characterized in that, described ring groove has two limits, near the angle of limit of thing side and optical axis between 40 to 55 degree, near the angle of limit of picture side and optical axis 30 to 40 spend between.
8. camera lens module as claimed in claim 6 is characterized in that, the material of described spaced ring is a light absorbent.
9. camera lens module as claimed in claim 6 is characterized in that, described ring shaped slot surface is carried out cloudy surface and handled or the light-plated absorbing film.
10. camera lens module as claimed in claim 6 is characterized in that, described spaced ring one-shot forming or adopt two semi-rings to combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810304362A CN101666899A (en) | 2008-09-03 | 2008-09-03 | Spacer ring and lens module using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810304362A CN101666899A (en) | 2008-09-03 | 2008-09-03 | Spacer ring and lens module using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101666899A true CN101666899A (en) | 2010-03-10 |
Family
ID=41803592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810304362A Pending CN101666899A (en) | 2008-09-03 | 2008-09-03 | Spacer ring and lens module using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101666899A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885155A (en) * | 2012-12-21 | 2014-06-25 | 三星电机株式会社 | Lens module |
| CN104297887A (en) * | 2013-07-17 | 2015-01-21 | 玉晶光电(厦门)有限公司 | Photographic lens and gasket for same |
| KR101758699B1 (en) * | 2016-04-25 | 2017-07-17 | 주식회사 더원테크 | Spacer for camera lens provided in personal digital assistant and, manufacturing methods for the same |
-
2008
- 2008-09-03 CN CN200810304362A patent/CN101666899A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885155A (en) * | 2012-12-21 | 2014-06-25 | 三星电机株式会社 | Lens module |
| US10338338B2 (en) | 2012-12-21 | 2019-07-02 | Samsung Electro-Mechanics Co., Ltd. | Lens module |
| CN104297887A (en) * | 2013-07-17 | 2015-01-21 | 玉晶光电(厦门)有限公司 | Photographic lens and gasket for same |
| KR101758699B1 (en) * | 2016-04-25 | 2017-07-17 | 주식회사 더원테크 | Spacer for camera lens provided in personal digital assistant and, manufacturing methods for the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100310 |