CN102298187A - Lens module - Google Patents
Lens module Download PDFInfo
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- CN102298187A CN102298187A CN2010102080888A CN201010208088A CN102298187A CN 102298187 A CN102298187 A CN 102298187A CN 2010102080888 A CN2010102080888 A CN 2010102080888A CN 201010208088 A CN201010208088 A CN 201010208088A CN 102298187 A CN102298187 A CN 102298187A
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- eyeglass
- face
- lens module
- camera lens
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Abstract
The invention relates to a lens module, which comprises a lens barrel and two lenses. The lens barrel has two opposite end surfaces and is provided with an accommodating hole which penetrates through the two end surfaces, and the accommodating hole is provided with a central shaft; an annular bulge is convexly formed on the inner wall of the lens barrel and coaxial with the accommodating hole and has two contact surfaces, and the two contact surfaces are respectively adjacent to the two end surfaces; and the two end surfaces are both in a shape of a truncated cone, and the radius of the cross section of each end surface is reduced along the direction away from the corresponding end surface. The two lenses are respectively provided with an optical axis and a fixing part, wherein each fixing part is provided with a contact surface, the contact surface of each lens is in a shape of a truncated cone which is matched with the contact surface of the annular bulge and is coaxial with the optical axis of the corresponding lens. The contact surfaces of the two lenses are respectively in tight contact with the two contact surfaces of the annular bulge.
Description
Technical field
The present invention relates to a kind of camera lens module.
Background technology
In recent years, along with Development of Multimedia Technology, the range of application of camera lens module is more and more wider, as is applied to digital camera, video camera and has in the electronic products such as mobile phone of camera function.
When people's logarithmic code camera, video camera and the mobile phone that has a camera function are pursued miniaturization, its quality of image of shooting object is also had higher requirement, promptly wish shot object image frame clear.The image quality of object is in depending on to a great extent in the assembling process, and whether the optical axis of each eyeglass in the camera lens module aligns.
As shown in Figure 1, a kind of camera lens module 10 of prior art comprises a lens barrel 12, and is set in turn in first eyeglass 14, spaced ring 18 and second eyeglass 16 in the lens barrel 12.During assembling, first eyeglass 14, interval body 18 and second eyeglass 16 orthogonal sets are successively installed in the lens barrel 12, thereby second eyeglass 16 fits in picture jointly by the spaced ring 18 and first eyeglass 14.But, in the assembling process of camera lens module 10, the optical axis of first eyeglass 14 and the optical axis deviation of second eyeglass 16 may occur, thereby influence the image quality of camera lens module 10, and then reduce the assembling yield of camera lens module 10.
Summary of the invention
In view of this, be necessary to provide a kind of camera lens module that improves the assembling yield.
A kind of camera lens module comprises a lens barrel, one first eyeglass and one second eyeglass.This lens barrel has one first end face, with this first end face second opposed end face and be connected the inwall of this first end face and second end face, the inwall of this lens barrel surrounds a cylindrical accepting hole, this accepting hole runs through this first end face and second end face.This accepting hole has a central shaft, the inwall of this lens barrel protrudes along its circumferencial direction and is formed with annular projection, this annular projection is coaxial with this accepting hole, this annular projection has first surface of contact and second surface of contact away from this first end face that is adjacent to this first end face, this first surface of contact and second surface of contact all are frusto-conical, and the circular radius of the xsect of this first surface of contact reduces on the direction away from this first end face gradually, and the circular radius of the xsect of this second surface of contact reduces on the direction away from this second end face gradually.This first eyeglass comprises one first optic and first fixed part that is provided with around this first optic periphery, this first optic has a primary optic axis, this first fixed part has one the 3rd surface of contact, the 3rd surface of contact is a frusto-conical and coaxial with this primary optic axis, this first eyeglass is contained in this lens barrel, and the circular radius of the xsect of the 3rd surface of contact reduces on the direction away from this first end face gradually, and the 3rd surface of contact closely contacts with this first surface of contact.This second eyeglass comprises one second optic and second fixed part that is provided with around this second optic periphery, this second optic has one second optical axis, this second fixed part has one the 4th surface of contact, the 4th surface of contact is a frusto-conical, this second eyeglass is contained in this lens barrel, and the circular radius of the xsect of the 4th surface of contact reduces on the direction away from this second end face gradually, and the 4th surface of contact closely contacts with the 4th surface of contact.
This camera lens module has utilized lens barrel inside that annular projection is set, and make annular projection have first surface of contact and second surface of contact of the central shaft of two ring-types and accepting hole that favour lens barrel, and first eyeglass has the 3rd surface of contact that closely contacts with this first surface of contact, and second eyeglass has the 4th surface of contact that closely contacts with this second surface of contact.This first surface of contact is accurately located in lens barrel with making first eyeglass cooperating of the 3rd surface of contact, second surface of contact is accurately located in lens barrel with making second eyeglass cooperating of the 4th surface of contact, can prevent from by this between first eyeglass and second eyeglass light shaft offset to take place, and then can improve the assembling yield of camera lens module.
Description of drawings
Fig. 1 is the diagrammatic cross-section of the camera lens module of prior art.
Fig. 2 is the diagrammatic cross-section of the camera lens module of the embodiment of the invention.
Fig. 3 is the decomposition diagrammatic cross-section of camera lens module among Fig. 2.
Fig. 4 is the synoptic diagram when first lens set is gone into lens barrel in the process of camera lens module in the assembly drawing 2.
Fig. 5 is the synoptic diagram when the first pressing sheet and spaced ring group are gone into lens barrel in the process of camera lens module in the assembly drawing 2.
Fig. 6 is the synoptic diagram when the second pressing sheet group is gone into lens barrel in the process of camera lens module in the assembly drawing 2.
The main element symbol description
The first pressing sheet 28
The second pressing sheet 30
Accepting hole 226
First surface of contact 230
Second surface of contact 232
First optic 242
First fixed part 244
First joint face 2446
The 3rd surface of contact 246
Second optic 262
Second fixed part 264
The 4th surface of contact 248
The 3rd surface 2642
The 4th surface 2644
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
See also Fig. 2 and Fig. 3, the embodiment of the invention provides a kind of camera lens module 200.This camera lens module comprises a lens barrel 22, one first eyeglass 24, one second eyeglass 26, one first pressing sheet 28, one second pressing sheet 30 and a spaced ring 32.
This lens barrel 22 is a column, and it has first end face 222 and second opposed end face 224, and this lens barrel 22 is offered an accepting hole 226, and this accepting hole 226 runs through first end face 222 and second end face 224 of this lens barrel 22.In the present embodiment, accepting hole 226 is cylindric, and it has a central shaft O, and this accepting hole 226 is slightly larger than the maximum gauge of this first eyeglass 24 and this second eyeglass 26 respectively at the diameter of the opening of first end face 222 and second end face 224.The medial surface 228 of this lens barrel 22 protrudes to central shaft O along its circumferencial direction and is formed with an annular projection 34.This annular projection 34 have first surface of contact 230, that is adjacent to first end face 222 be adjacent to second end face 224 second surface of contact 232, and connect the septal surface 234 of first surface of contact 230 and second surface of contact 232.First surface of contact 230 and second surface of contact 232 are respectively frusto-conical face, and the central shaft of first surface of contact 230 and second surface of contact 232 overlaps with central shaft O respectively, the circular radius of the xsect of first surface of contact 230 reduces on the direction away from this first end face 222 gradually, the circular radius of the xsect of second surface of contact 232 reduces on the direction away from this second end face 224 gradually, the angle of this first surface of contact 230 and central shaft O is that the angle of θ 1, the second surface of contact 232 and central shaft O is θ 2.In the present embodiment, this septal surface 234 is a face of cylinder, and is parallel to this central shaft O.
This first eyeglass 24 comprises one first optic 242 and centers on first fixed part 244 of the periphery of this first optic 242, this first optic 242 has an optical axis O1, this first fixed part 244 has opposite first 2442 and second surface 2444, and this first surface 2442 is parallel to this second surface 2444.In the present embodiment, this first surface 2442 is vertical with the optical axis of this first optic 242 with second surface 2444.The periphery of first fixed part 244 has one first joint face 2446 and one the 3rd surface of contact, 246, the three surface of contact 246 intersect with second surface 2444.This first joint face 2446 is the peripheral sides of first fixed part 244, and first joint face 2446 is between the 3rd surface of contact 246 and first surface 2442 and be connected the 3rd surface of contact 246 and first surface 2442, in the present embodiment, this first joint face 2446 is a face of cylinder.The 3rd surface of contact 246 tilts along the direction away from optical axis O1, and the angle of the optical axis O1 of the 3rd surface of contact 246 and first optic 242 is θ 3, this angle theta 3 and angle theta 1 equal and opposite in direction.
This second eyeglass 26 comprises one second optic 262 and centers on second fixed part 264 of these second optic, 262 peripheries that this second optic 262 has an optical axis O2.Second fixed part 264 has the structure similar to first fixed part 244, this second fixed part 264 has with first surface 2442 and second surface 2444 and has and first joint face 2446 and the 3rd surface of contact 246 corresponding second joint face 2646 of difference and the 4th surface of contact 248 between the 2642 and the 4th surfaces 2644,2644, the three surfaces, the corresponding the 3rd surperficial the 2642 and the 4th surface respectively.The 4th surface of contact 248 is θ 4 with the angle of optical axis O2, the equal and opposite in direction of this angle theta 4 and angle theta 2.
This first pressing sheet 28 and the second pressing sheet 30 are respectively ring-type, are respectively applied for this first eyeglass 24 of pressing and second eyeglass 26.In the present embodiment, this accepting hole 226 is the light inlet of camera lens module 200 at the opening of this second end face 224, and therefore, this second pressing sheet 30 is preferably light screening material.This spaced ring 32 is ring-type and is light screening material that it is used for interval this first eyeglass 24 and second eyeglass 26 and blocks the part light that enters in the camera lens module 200.
During assembling, the 3rd surface of contact 246 of this first eyeglass 24 contacts with first surface of contact 230 of lens barrel 22, the 4th surface of contact 248 of this second eyeglass 26 contacts with second surface of contact 232 of lens barrel 22, this spaced ring 32 is between this first eyeglass 24 and second eyeglass 26, and the lateral surface of spaced ring 32 is close to the septal surface 234 of annular projection 34, this the first pressing sheet 28 and the second pressing sheet 30 are close to the first surface 2442 of first eyeglass 24 and the 3rd surface 2642 and difference this first eyeglass 24 of pressing and second eyeglass 26 of second eyeglass 26 respectively, make the 3rd surface of contact 246 and the 4th surface of contact 248 be close to first surface of contact 230 and second surface of contact 232 respectively.
The camera lens module 200 of present embodiment has utilized lens barrel 22 inside that annular projection 34 is set, and make annular projection have first surface of contact 230 and second surface of contact 232 of the central shaft O of two ring-types and accepting hole 226 that favour lens barrel 22, and first eyeglass 24 has and this first surface of contact 230 the 4th surface of contact 248 that tight the 3rd surface of contact 246, the second eyeglasses 26 that contact have and this second surface of contact 232 closely contacts.This first surface of contact 230 is accurately located in lens barrel 22 with making first eyeglass 24 cooperating of the 3rd surface of contact 246, second surface of contact 232 is accurately located in lens barrel 22 with making second eyeglass 26 cooperating of the 4th surface of contact 248, therefore can prevent between first eyeglass 24 and second eyeglass 26 light shaft offset to take place, and then can improve the assembling yield of camera lens module 200.
See also Fig. 2 and Fig. 4-6, this camera lens module 200 can be assembled by the following method:
At first, as shown in Figure 4, first eyeglass is gone in the lens barrel 22 for 24 groups, and make first surface of contact 230 be close to the 3rd surface of contact 246.
Secondly, as shown in Figure 5,28 groups of the first pressing sheets are gone in the lens barrel 22, the first surface 2442 of pressing first eyeglass 24, and the first pressing sheet 28 and first eyeglass 24 are fixed in the lens barrel 22 by the method for a glue, in the present embodiment, glue spots is located between the inwall of first joint face 2446 of first eyeglass 24 and lens barrel 22 and between the inwall of the lateral surface of the first pressing sheet 28 and lens barrel 22.
Once more, as shown in Figure 6, spaced ring is gone in the lens barrel 22 for 32 groups, and make the lateral surface of spaced ring 32 relative, and fix by a glue with septal surface 234.
At last, as Fig. 6 and shown in Figure 2,26 groups on second eyeglass is gone in the lens barrel 22, and make second surface of contact 232 be close to the 4th surface of contact 248, then 30 groups of the second pressing sheets are gone in the lens barrel 22, the 3rd surface 2642 of pressing second eyeglass 26, and by the method for a glue the second pressing sheet 30 and second eyeglass 26 are fixed in the lens barrel 22, thereby camera lens module 200 formed.
Be appreciated that this septal surface 234 also can be frusto-conical face.Certainly, it is a round wire that this first surface of contact 230 and second surface of contact 232 also can intersect, and this moment, septal surface 234 did not promptly exist.
Be appreciated that equally, the 3rd surface of contact 246 of this first eyeglass 24 also can directly extend to second surface 2444 by first surface 2442, the 4th surface of contact 248 of this second eyeglass 26 also can directly extend to the 4th surface 2644 by the 3rd surface 2642, at this moment, this first joint face 2446 and second joint face 2646 can omit.
In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. camera lens module comprises:
One lens barrel, has one first end face, with this first end face second opposed end face and be connected the inwall of this first end face and second end face, the inwall of this lens barrel surrounds a cylindrical accepting hole, this accepting hole runs through this first end face and second end face, this accepting hole has a central shaft, the inwall of this lens barrel protrudes along its circumferencial direction and is formed with annular projection, this annular projection is coaxial with this accepting hole, this annular projection has first surface of contact and second surface of contact away from this first end face that is adjacent to this first end face, this first surface of contact and second surface of contact all are frusto-conical, and the circular radius of the xsect of this first surface of contact reduces on the direction away from this first end face gradually, and the circular radius of the xsect of this second surface of contact reduces on the direction away from this second end face gradually;
One first eyeglass, this first eyeglass comprises one first optic and first fixed part that is provided with around this first optic periphery, this first optic has a primary optic axis, this first fixed part has one the 3rd surface of contact, the 3rd surface of contact is a frusto-conical and coaxial with this primary optic axis, this first eyeglass is contained in this lens barrel, and the circular radius of the xsect of the 3rd surface of contact reduces on the direction away from this first end face gradually, and the 3rd surface of contact closely contacts with this first surface of contact; And
One second eyeglass, this second eyeglass comprises one second optic and second fixed part that is provided with around this second optic periphery, this second optic has one second optical axis, this second fixed part has one the 4th surface of contact, the 4th surface of contact is a frusto-conical, this second eyeglass is contained in this lens barrel, and the circular radius of the xsect of the 4th surface of contact reduces on the direction away from this second end face gradually, and the 4th surface of contact closely contacts with the 4th surface of contact.
2. camera lens module as claimed in claim 1, wherein, the angle of the 3rd surface of contact and this primary optic axis equals the angle between this first surface of contact and this central shaft.
3. camera lens module as claimed in claim 2, wherein, the angle of the 4th surface of contact and this second optical axis equals the angle between this second surface of contact and this central shaft.
4. camera lens module as claimed in claim 3, wherein, this camera lens module further comprises first pressing sheet of a ring-type and the second pressing sheet of a ring-type, this first pressing sheet is adjacent to this first end face and contacts with this first fixed part, this second pressing sheet is adjacent to this second end face and contacts with this second fixed part, this first fixed part and this second fixed part be used for respectively this first eyeglass of pressing with this second eyeglass so that this first surface of contact closely contact with the 4th surface of contact with the 3rd surface of contact and this second surface of contact.
5. camera lens module as claimed in claim 4, wherein, this first fixed part has a first surface perpendicular to this primary optic axis, this first surface is adjacent with this first pressing sheet, this first pressing sheet contacts with this first surface, second fixed part has a second surface perpendicular to this second optical axis, and this second surface is adjacent with this second pressing sheet, and this second pressing sheet contacts with this second surface.
6. camera lens module as claimed in claim 1, wherein, this annular projection has a septal surface, and this septal surface connects the less circular edges of radius of this first surface of contact and this second surface of contact.
7. camera lens module as claimed in claim 6, wherein, this camera lens module further comprises a ring-type spaced ring, the lateral surface of this ring-type spaced ring is relative with this septal surface, is used for this first eyeglass and this second eyeglass at interval.
8. camera lens module as claimed in claim 7, wherein, this spaced ring is a light screening material.
9. camera lens module as claimed in claim 4, wherein, this accepting hole at the opening of this first end face and this second end face respectively greater than this first eyeglass and this second eyeglass, so that this first eyeglass and this second eyeglass are assembled in this lens barrel from two openings of this accepting hole respectively.
10. camera lens module as claimed in claim 9, wherein, this accepting hole is the light inlet of camera lens module at the opening of this second end face, this second pressing sheet is a light screening material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102080888A CN102298187A (en) | 2010-06-24 | 2010-06-24 | Lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102080888A CN102298187A (en) | 2010-06-24 | 2010-06-24 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102298187A true CN102298187A (en) | 2011-12-28 |
Family
ID=45358736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102080888A Pending CN102298187A (en) | 2010-06-24 | 2010-06-24 | Lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102298187A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174065A (en) * | 2017-12-19 | 2018-06-15 | 广东欧珀移动通信有限公司 | The lens assembly of camera and with its camera, electronic equipment |
| 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 |
| WO2021000221A1 (en) * | 2019-07-01 | 2021-01-07 | 瑞声光学解决方案私人有限公司 | Lens module and electronic apparatus |
| WO2021000193A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声光学解决方案私人有限公司 | Lens module |
| EP4124896A1 (en) * | 2021-07-26 | 2023-02-01 | Hexagon Technology Center GmbH | Self-centering lens enclosure and objective for a metrological camera |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966759C (en) * | 1953-11-22 | 1957-09-05 | Zeiss Jena Veb Carl | Device for eyepiece adjustment of binocular instruments |
| US3402003A (en) * | 1965-04-27 | 1968-09-17 | Ednalite Corp | Mount for lens assembly |
| US20050152050A1 (en) * | 2004-01-14 | 2005-07-14 | Matsushita Elec. Ind. Co. Ltd. | Lens unit |
| CN101078802A (en) * | 2006-05-24 | 2007-11-28 | 鸿富锦精密工业（深圳）有限公司 | Lens module and its assembling method |
| CN101576642A (en) * | 2008-05-06 | 2009-11-11 | 鸿富锦精密工业（深圳）有限公司 | Spacing ring and lens module with spacing ring |
-
2010
- 2010-06-24 CN CN2010102080888A patent/CN102298187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE966759C (en) * | 1953-11-22 | 1957-09-05 | Zeiss Jena Veb Carl | Device for eyepiece adjustment of binocular instruments |
| US3402003A (en) * | 1965-04-27 | 1968-09-17 | Ednalite Corp | Mount for lens assembly |
| US20050152050A1 (en) * | 2004-01-14 | 2005-07-14 | Matsushita Elec. Ind. Co. Ltd. | Lens unit |
| CN101078802A (en) * | 2006-05-24 | 2007-11-28 | 鸿富锦精密工业（深圳）有限公司 | Lens module and its assembling method |
| CN101576642A (en) * | 2008-05-06 | 2009-11-11 | 鸿富锦精密工业（深圳）有限公司 | Spacing ring and lens module with spacing ring |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174065A (en) * | 2017-12-19 | 2018-06-15 | 广东欧珀移动通信有限公司 | The lens assembly of camera and with its camera, electronic equipment |
| CN108174065B (en) * | 2017-12-19 | 2020-05-12 | Oppo广东移动通信有限公司 | Lens assembly of camera, camera with lens assembly and electronic equipment with lens assembly |
| 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 |
| WO2021000193A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声光学解决方案私人有限公司 | Lens module |
| WO2021000221A1 (en) * | 2019-07-01 | 2021-01-07 | 瑞声光学解决方案私人有限公司 | Lens module and electronic apparatus |
| EP4124896A1 (en) * | 2021-07-26 | 2023-02-01 | Hexagon Technology Center GmbH | Self-centering lens enclosure and objective for a metrological camera |
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Application publication date: 20111228 |