CN200941128Y - Screwed tooth structure of optical lens - Google Patents
Screwed tooth structure of optical lens Download PDFInfo
- Publication number
- CN200941128Y CN200941128Y CN200620131121.0U CN200620131121U CN200941128Y CN 200941128 Y CN200941128 Y CN 200941128Y CN 200620131121 U CN200620131121 U CN 200620131121U CN 200941128 Y CN200941128 Y CN 200941128Y
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- China
- Prior art keywords
- thread
- recession
- localized
- tooth
- normal
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- 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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Abstract
The utility model discloses a screw tooth structure for the optical lens, which is provided with a tube made by plastic materials, the lateral of the tube is provided with the screw tooth structure, and the single working screw of the screw tooth structure is provided with two normal screw tooth and part shrink screw tooth with different node-circle diameters; the part shrink screw tooth is arranged on the vertical parting-line of the tube's thread structure, and the tooth cusp diameter and the node-circle diameter of the part shrink screw tooth are all smaller than the tooth cusp diameter and the node-circle diameter of the normal screw tooth, while a plane-joint gap surface is provided between the outer edges of the part shrink screw tooth and the normal screw tooth. This utility model also discloses a screw tooth structure of the optical lens, the bottom of the first tooth near the front end of the tube is provided with the convex rib structure. The screw tooth structure of the optical lens of this utility model can produce an interval distance between the screw structure and the base through the shrink screw tooth or the convex rib, thus reduces the powder problem caused by the contact and friction of the vertical parting surface and the thread structure.
Description
Technical field
The utility model relates to a kind of camera cell phone, particularly a kind of optical lens of camera cell phone.
Background technology
Generally camera cell phone is employed focuses in the module of taking pictures, mostly its lens barrel is to make with injection molding method, the plastics lens barrel that possesses the thread structure, when optical lens and pedestal group immediately, can use this thread support structure lens barrel, and focus simultaneously in spinning movement, this structural design can cause the inner break flour that produces of camera module because of following factor in real the work:
First, in order to allow after the moulding of plastics lens barrel, can in mould, take out, need to use slide block structure to make this thread shape in the mould, therefore lens barrel thread structure can have vertical die parting line, has small burr on this die joint, when camera lens and pedestal group immediately, these burr can produce break flour because of collision, fall into camera module inside.
Second, the miniaturization module needs quite meticulous focusing control, usually need lens barrel thread and base thread that a little interference is arranged, after avoiding the camera lens focusing to finish, produce displacement again because of factor such as moving, cause product to lose burnt problem and take place, but when amount of interference is excessive, the thread of lens barrel and the internal screw thread of pedestal rub mutually, also can cause the inner break flour that produces of camera module.
Existing optical lens for cell phone is for addressing the above problem, usually adopt manufacturing method thereof to overcome, just do one's utmost to improve die size precision and reduce surfaceness, burr are reduced, the friction of thread reduces, and adds cleaning and wipe process in addition in processing procedure, removes when break flour is taken place, but this method fails to overcome the break flour problem fully, and increases the complexity and the cost of processing procedure again in addition.
The utility model content
The technical problems to be solved in the utility model provides a kind of optical lens thread structure, make between thread structure and the pedestal by the structure of shrink back thread or fin and to produce spacing distance, reducing the break flour that the plastics lens barrel produces when the assembling, cause the bad problem of image thereby overcome because of break flour.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of optical lens thread structure has the lens barrel of plastic material, and this lens barrel outside system is provided with the thread structure, has normal thread and localized recession's thread in two kinds of different pitch circles footpaths in the single working screw of described thread structure;
This localized recession's thread is positioned on vertical die parting line of lens barrel helicitic texture, and the cusp of this localized recession's thread footpath is less than the cusp footpath of normal thread, the pitch circle footpath of this localized recession's thread is less than the pitch circle footpath of normal thread, and the clearance plane that this localized recession's thread and normal thread outer rim have a plane engagement.
A kind of optical lens thread structure has the lens barrel of plastic material, and this lens barrel outside system is provided with the thread structure, described thread structure near the tooth of lens barrel front end first tooth at the bottom of position system be provided with rib structures.
Owing to adopt technique scheme, optical lens thread structure of the present utility model is by the structure generation thread structure of shrink back thread or fin and the spacing distance between the pedestal, effectively reduce the break flour that vertical die joint burr and helicitic texture are caused because of the contact friction, and reduce cost greatly, assemble also more smooth and easy steady.
Description of drawings
Fig. 1 is the stereo appearance figure of the utility model first embodiment;
Fig. 2 is the partial enlarged drawing of the utility model first embodiment;
Fig. 3 is that the thread structure of the utility model first embodiment is over against the axis direction perspective view;
Fig. 4 is the stereo appearance figure of the utility model second embodiment;
Fig. 5 is the assembled sectional view of the utility model second embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
First embodiment of the present utility model as shown in Figure 1, Fig. 2 is its partial enlarged drawing:
One optical lens 10, its lens barrel is constituted by plastic material, this lens barrel outside system is provided with thread structure 20, and in the single working screw of this thread structure 20, have the thread in two kinds of different pitch circles footpaths, be respectively normal thread 21 and localized recession's thread 22, these localized recession's thread 22 positions are positioned on vertical die parting line 23 of lens barrel helicitic texture, this localized recession's thread 22 and normal thread 21 outer rims have the clearance plane 24 of a plane combination.
This normal thread is of a size of M7 * P0.35, and its cusp directly is 6.95mm, and pitch circle is 6.773mm directly, directly is 6.55mm at the bottom of the tooth, and thread tooth distance is 0.35mm;
The cusp of this localized recession's thread directly is 6.85mm, and pitch circle is 6.673mm directly, directly is 6.55mm at the bottom of the tooth.
The thread tooth is apart from taking advantage of 0.7 for 0.245mm, so this spacing distance is less than this numerical value.Fig. 3 is that thread structural outer rim profile is in the perspective view over against axis direction.Two place localized recession threads 22 lay respectively at vertical die parting line position of lens barrel both sides.
The lens barrel outside is provided with the part and subtracts meat A; Definition subtracts meat and is of a size of normal thread 21 cusps footpath to subtracting the distance of meat position in vertical die parting line direction, i.e. the A size of Fig. 3.
This part subtracts meat A size and is made as 0.25mm, thread tooth apart from taking advantage of 0.54 to be 0.189mm, and the part subtracts meat A size greater than this numerical value.
In addition the meat position that subtracts that subtracts meat A, this part is positioned at vertical die joint both sides, can be provided with the oblique angle of smooth and easy die sinking towards the die sinking direction, and this withdrawing pattern oblique angle is 5 degree.
Second embodiment of the present utility model such as Fig. 4, shown in 5, one optical lens, its lens barrel is that plastic material constitutes, this lens barrel outside system is provided with thread structure 20, the thread that has two kinds of different pitch circles footpaths in the single working screw of this thread structure 20, be respectively normal thread 21 and localized recession's thread 22, this lens barrel has the vertical die parting line 23 in two places, these localized recession's thread 22 positions are positioned on vertical die parting line 23, this localized recession's thread 22 is coaxial with normal thread 21, the clearance plane 24 that this localized recession's thread 22 and normal thread 21 outer rims have a plane engagement, this thread structure 20 near the lens barrel front end corresponding to the tooth of first tooth in normal thread zone at the bottom of the position, system is provided with rib structures 25 everywhere; Footpath at the bottom of the cusp of this normal thread 21 and localized recession's thread 22 footpath, the tooth, pitch circle footpath are all identical with first embodiment.
The top diameter of this rib structures 25 is 6.70mm, and it is 0.15mm with footpath difference at the bottom of the tooth of normal thread 21.
The thread structure 20 that this optical lens 10 lens barrels outside system is established screws togather mutually with pedestal 30, the rib structures 25 that position system is established at the bottom of utilizing the lens barrel front end corresponding to the tooth of first tooth in normal thread zone reaches the break flour problem that vertical die joint burr of reduction and thread structure 20 are caused because of the contact friction.
Claims (10)
1. optical lens thread structure has the lens barrel of plastic material, and this lens barrel outside system is provided with the thread structure, it is characterized in that,
The normal thread and the localized recession's thread that have two kinds of different pitch circles footpaths in the single working screw of described thread structure;
This localized recession's thread is positioned on vertical die parting line of lens barrel helicitic texture, and the cusp of this localized recession's thread footpath is less than the cusp footpath of normal thread, the pitch circle footpath of this localized recession's thread is less than the pitch circle footpath of normal thread, and the clearance plane that this localized recession's thread and normal thread outer rim have a plane engagement.
2. optical lens thread structure as claimed in claim 1 is characterized in that, the pitch circle footpath of described normal thread is a spacing distance with the pitch circle difference directly of localized recession's thread, and this spacing distance is more than or equal to 0.03mm.
3. optical lens thread structure as claimed in claim 2 is characterized in that, described spacing distance multiply by 0.7 less than thread tooth distance, and this spacing distance is more than or equal to 0.08mm.
4. optical lens thread structure as claimed in claim 1 is characterized in that, the described lens barrel outside is provided with the part of establishing for localized recession's thread system and subtracts meat in vertical die parting line position, and the size that this part subtracts meat multiply by 0.54 greater than thread tooth distance.
5. optical lens thread structure as claimed in claim 1 is characterized in that, described localized recession thread central shaft is coaxial with the central shaft of normal thread.
6. optical lens thread structure as claimed in claim 1 is characterized in that, described lens barrel thread structure has the vertical die parting line in two places.
7. optical lens thread structure as claimed in claim 4 is characterized in that, described part subtracts the meat shape and is positioned at vertical die parting line both sides, and this part subtracts the oblique angle that the corresponding die sinking direction system of meat is provided with smooth and easy die sinking, and this angle of bevel is between 0 to 10 degree.
8. optical lens thread structure has the lens barrel of plastic material, and this lens barrel outside system is provided with the thread structure, it is characterized in that, described thread structure near the tooth of lens barrel front end first tooth at the bottom of position system be provided with rib structures.
9. optical lens thread structure as claimed in claim 8 is characterized in that,
The normal thread and the localized recession's thread that have two kinds of different pitch circles footpaths in the single working screw of described thread structure;
This lens barrel thread structure has the vertical die parting line in two places;
Described localized recession thread is positioned on vertical die parting line of lens barrel thread structure, and this localized recession's thread central shaft is coaxial with the central shaft of normal thread, and the cusp of this localized recession's thread footpath is less than the pitch circle footpath less than normal thread, the pitch circle footpath of the cusp footpath of normal thread, this localized recession's thread, the clearance plane that has a plane engagement in this localized recession's thread and normal thread outer rim in addition.
10. optical lens thread structure as claimed in claim 9, it is characterized in that, described rib structures is positioned at position at the bottom of the tooth of normal thread, and this rib structures is provided with quantity more than or equal to 3, and at the bottom of the tooth of the top diameter of this rib structures and normal thread the difference in footpath greater than 0.06mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620131121.0U CN200941128Y (en) | 2006-08-14 | 2006-08-14 | Screwed tooth structure of optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620131121.0U CN200941128Y (en) | 2006-08-14 | 2006-08-14 | Screwed tooth structure of optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941128Y true CN200941128Y (en) | 2007-08-29 |
Family
ID=38747306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620131121.0U Expired - Lifetime CN200941128Y (en) | 2006-08-14 | 2006-08-14 | Screwed tooth structure of optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941128Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7846370B2 (en) | 2007-10-22 | 2010-12-07 | Hon Hai Precision Industry Co., Ltd. | Threaded core, injection molded apparatus method for making lens barrel |
| CN101398521B (en) * | 2007-09-28 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Dental plate for making the lens cone and method for making the lens cone using the dental plate |
| CN106324787A (en) * | 2015-07-10 | 2017-01-11 | 玉晶光电(厦门)有限公司 | Lens cone with retreating wide cutting teeth |
-
2006
- 2006-08-14 CN CN200620131121.0U patent/CN200941128Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398521B (en) * | 2007-09-28 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Dental plate for making the lens cone and method for making the lens cone using the dental plate |
| US7846370B2 (en) | 2007-10-22 | 2010-12-07 | Hon Hai Precision Industry Co., Ltd. | Threaded core, injection molded apparatus method for making lens barrel |
| CN106324787A (en) * | 2015-07-10 | 2017-01-11 | 玉晶光电(厦门)有限公司 | Lens cone with retreating wide cutting teeth |
| CN106324787B (en) * | 2015-07-10 | 2019-01-15 | 玉晶光电(厦门)有限公司 | Lens barrel with wide incisor of shrinking back |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |