CN204314537U - The mobile lens of a kind of interior focusing, large image planes - Google Patents
The mobile lens of a kind of interior focusing, large image planes Download PDFInfo
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- CN204314537U CN204314537U CN201520009868.8U CN201520009868U CN204314537U CN 204314537 U CN204314537 U CN 204314537U CN 201520009868 U CN201520009868 U CN 201520009868U CN 204314537 U CN204314537 U CN 204314537U
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Abstract
The utility model discloses the mobile lens of a kind of interior focusing, large image planes, the main points of its technical scheme from subject to image planes, are provided with fixed first lens combination, diaphragm successively, can move the second lens combination, fixed 3rd lens combination and optical filter along optical axis direction, described first lens combination comprises the first lens, described second lens combination comprises the second lens, the 3rd lens, the 4th lens successively from subject to image planes, and described 3rd lens combination comprises the 5th lens, the 6th lens successively from subject to image planes.The utility model adopt in focusing mode, how no matter how object distance is changed, camera lens can become all the time clearly as, even object distance is 0.08 meter time, can both imaging clearly.
Description
[technical field]
The utility model relates to a kind of optical lens, particularly relates to a kind of optical lens being applied to interior focusing, the greatly image planes of cell phone system.
[background technology]
The current mobile phone such shortcoming of high pixel camera lens ubiquity: image planes are little, image planes brightness irregularities, can only to certain fixture apart from becoming sharply defined image etc.Also do not have camera lens can overcome above-mentioned all shortcomings in the market simultaneously, only having minority camera lens, improving in certain, such as in order to realize high pixel when sacrificing other side, the image planes of camera lens must be made to reduce, and the quality of picture can not show a candle to large image planes imaging; The camera lens even had is in order to realize high pixel, make camera lens can only become under certain specific object distance clearly as, mobile phone shooting infinite distance object and auto heterodyne situation hypograph sharpness and authenticity requirement can not be met far away, also do not overcome the mobile lens of above whole shortcoming in the market.
The utility model is exactly make in view of the situation.
[utility model content]
The utility model object overcomes the deficiencies in the prior art, can not the focusing of camera lens inside, the deficiency such as image planes are little, relative exposure is on the low side, provide the mobile lens of a kind of interior focusing, large image planes.
The utility model is achieved through the following technical solutions:
The mobile lens of a kind of interior focusing, large image planes, it is characterized in that: from subject to image planes, 5 be provided with fixed first lens combination 1, diaphragm 4 successively, the second lens combination 2, fixed 3rd lens combination 3 and optical filter 6 can be moved along optical axis direction, described first lens combination 1 comprises the first lens 101, described second lens combination 25 comprises the second lens 201, the 3rd lens 202, the 4th lens 203 successively from subject to image planes, and described 3rd lens combination 35 comprises the 5th lens 301, the 6th lens 302 successively from subject to image planes.
The mobile lens of focusing as mentioned above, large image planes, it is characterized in that: described first lens 101, second lens 201, the 4th lens 203, the 5th lens 301 focal power are just, described 3rd lens 202 focal power is negative, and described 6th lens 302 focal power is negative.
The mobile lens of focusing as mentioned above, large image planes, it is characterized in that: described first lens 101, second lens 201, the 4th lens 203, the 5th lens 301 are falcate non-spherical lens, described 3rd lens 202 are double concave non-spherical lens, described 6th lens 302 pairs of contrary flexure shape non-spherical lenses.
The mobile lens of focusing as mentioned above, large image planes, is characterized in that: described first lens 101 image side is towards being recessed, and described 5th lens 301 thing side also inwardly concaves.
The mobile lens of focusing as mentioned above, large image planes, it is characterized in that: the material of described first lens 101, the 3rd lens 202, the 4th lens 203, the 6th lens 302 is plastics, the material of the second lens 201, the 5th lens 301 is glass.
The mobile lens of focusing as mentioned above, large image planes, is characterized in that: described first lens 101, second lens 201, the 3rd lens 202, the 4th lens 203, the 5th lens 301, the aspheric surface configuration of the 6th lens 302 meet following equation:
Compared with prior art, the utility model has the following advantages:
1, each eyeglass of most of mobile lens maintains static in the market, can only to the object of fixed range become clearly as, when object distance is very near, lens imaging is unintelligible, even can not imaging; The utility model adopt in focusing mode, how no matter how object distance is changed, camera lens can become all the time clearly as, even object distance is 0.08 meter time, can both imaging clearly.
2, most of mobile lens imaging surface is very little in the market, is all generally 1/4 " image planes, although the resolution of camera lens is higher, image quality can not show a candle to large image planes imaging; The utility model adopts 1/2.3, and " large image planes imaging, make resolution of lens higher, the image quality of whole camera lens is also better.
3, most of mobile lens relative exposure is very low in the market, and obviously, major part makes picture even as far as possible by the mode of software compensation in the light levels contrast of image plane center and periphery; Optimization relative exposure pointed in the utility model design, the illumination of improving picture periphery, makes the illumination of picture center and periphery basically identical, picture homogeneous and bright.
The pixel of 4, common in the market mobile lens is on the low side compared with camera, can only meet daily life and take pictures; The utility model adopts large image planes imaging, and resolution is very high simultaneously, and imaging is true, clear, can imaging clearly under the most important thing is super close distance.
5, the utility model adopts glass plastic mixed structure, effectively falls and solves eyeglass difficult forming, problem that the high yields caused of assembly precision requirement is low.
[accompanying drawing explanation]
Fig. 1 is optical system diagram of the present utility model.
In figure; 1 is the first lens combination; 101 is the first lens; 2 is the second lens combination; 201 is the second lens; 202 is the 3rd lens; 203 is the 4th lens; 3 is the 3rd lens combination; 301 is the 5th lens; 302 is the 6th lens; 4 is diaphragm; 5 is image planes; 6 is optical filter.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, the mobile lens of a kind of interior focusing, large image planes, from subject to image planes, 5 be provided with fixed first lens combination 1, diaphragm 4 successively, the second lens combination 2, fixed 3rd lens combination 3 and optical filter 6 can be moved along optical axis direction, described first lens combination 1 comprises the first lens 101, described second lens combination 25 comprises the second lens 201, the 3rd lens 202, the 4th lens 203 successively from subject to image planes, and described 3rd lens combination 35 comprises the 5th lens 301, the 6th lens 302 successively from subject to image planes.
Described first lens 101 for focal power be positive falcate non-spherical lens and its image side towards being recessed, second lens 201 for focal power be positive falcate non-spherical lens, 3rd lens 202 for focal power be negative double concave non-spherical lens, 4th lens 203 for focal power be positive falcate non-spherical lens, 5th lens 301 for focal power be positive falcate non-spherical lens and its image side towards being recessed, the 6th lens 302 for focal power be negative two contrary flexure shape non-spherical lenses.
In order to realize the focusing of camera lens inside, the second lens combination 2 is adopted to move during design, when object distance changes, the second lens combination 2 moves corresponding distance, compensates the variable quantity that object distance change causes rear Jiao, camera lens can be focused in image planes 5 all the time, become clearly as, in addition, in design give the second lens combination 2 leave enough displacement, when there being mismachining tolerance to exist, also accurate focusing can be ensured.
In order to realize large image planes, during design, the 5th lens 301 adopt falcate non-spherical lens, and its thing side inwardly concaves, effectively can correct the curvature of field produced when the second lens combination 2 moves, light is smoothly raised fast, meanwhile, the 5th lens 301 adopt high index of refraction, low abbe number material, can be good at correcting aberration; In addition, 6th lens 302 adopt two contrary flexure shape non-spherical lens, and whole eyeglass is M shape, the light low-angle in the different market of effective control enters imaging surface, effectively improve image planes periphery illumination, also well corrected the coma of surrounding visual field, raising image quality makes camera lens, and not only imaging surface is large, and image quality does not reduce.
In order to realize high illumination, adopting glass and plastics structure used in combination during design, the low problem of all-plastic structure transmitance can be improved very well; Diaphragm 4 back adopts mobile lens group, effectively improves light large angle incidence to each lens surface, reduces the reflection of light at each lens surface, improves the utilization of luminous energy.
Adopt wide spectral when the present invention designs, and the theoretical resolution of design is far above actual needs value, ensure that image sharpness and color reducibility.
Lift an actual design case to be below described:
| Face is numbered | Face type | Radius | Thickness | Material | Effective aperture |
| OBJ | Object plane | Infinity | Infinity | --- | Infinity |
| A | Aspheric surface | 2.3657 | 0.2925 | SP-1516 | 1.3679 |
| B | Aspheric surface | 4.1185 | 0.2357 | --- | 1.1852 |
| STO | Standard | Infinity | 0.002 | --- | 0.8015 |
| C | Aspheric surface | 2.1173 | 0.4355 | M-BACD15 | 0.8137 |
| D | Aspheric surface | 9.2856 | 0.0503 | --- | 0.9038 |
| E | Aspheric surface | -4.883 | 0.3016 | OKP-850 | 0.9622 |
| F | Aspheric surface | 6.8743 | 0.1352 | --- | 0.9854 |
| G | Aspheric surface | 3.6627 | 0.2618 | F52R | 1.0583 |
| H | Aspheric surface | 4.8216 | 0.8753 | --- | 1.1329 |
| I | Aspheric surface | -4.6128 | 0.7753 | M-LAC8 | 1.2279 |
| J | Aspheric surface | -0.9935 | 0.1022 | --- | 1.6853 |
| K | Aspheric surface | -3.5768 | 0.5219 | APL5014CL | 2.8219 |
| L | Aspheric surface | 1.3587 | 0.35 | --- | 3.2247 |
| M | Standard | Infinity | 0.21 | H-K9L | 3.5546 |
| N | Standard | Infinity | 0.8 | --- | 3.5829 |
| IMA | Image planes | Infinity | --- | --- | 3.98 |
Number in table, A is the first lens thing side, and B is the first face, lens image side; C second lens thing side, face, D second lens image side; E the 3rd lens thing side, face, F the 3rd lens image side; G the 4th lens thing side, face, H the 4th lens image side; I the 5th lens thing side, face, J the 5th lens image side; K the 6th lens thing side, face, L the 6th lens image side; OBJ is object dignity; STO is diaphragm; M is the thing side of optical filter, and N is the face, image side of optical filter, and above numerical value unit is millimeter.
Moving range between each lens combination:
Interval 0.2357mm ~ 0.0632mm between first lens combination ~ the second lens combination.
Interval 0.7753mm ~ 0.9478mm between second lens combination ~ the 3rd lens combination.
Described first lens 101, second lens 201, the 3rd lens 202, the 4th lens 203, the 5th lens 301, the aspheric surface configuration of the 6th lens 302 meet following equation:
In formula, the curvature of parameter c corresponding to radius, y is that its unit of radial coordinate is identical with length of lens unit, and k is circular cone whose conic coefficient.When k-factor is less than-1, face type curve is hyperbolic curve, is para-curve when equaling-1, is oval time between-1 to 0, is circle when equaling 0.A
1to a
8represent the coefficient corresponding to each radial coordinate respectively, accurately can be set the geomery of both-sided aspherical before and after lens by above parameter, above-mentioned aspheric processing is all normal processing technology.
The asphericity coefficient of each lens is as following table:
| The A face of the first lens | The B face of the first lens | |
| K | -12.68543 | -18.22597 |
| a 2 | -0.030295 | -0.035298 |
| a 3 | -0.006584 | -0.011287 |
| a 4 | -0.0029522 | -0.0035498 |
| a 5 | 0.0132965 | 0.0232518 |
| a 6 | 0.0044298 | -0.0087525 |
| a 7 | -0.0062113 | -0.0077356 |
| a 8 | 0.0019781 | 0.0044372 |
| The C face of the second lens | The D face of the second lens | |
| K | 0.65376 | 89.77591 |
| a 2 | -0.0065539 | -0.053226 |
| a 3 | -0.0195713 | -0.0123221 |
| a 4 | 0.0018504 | 0.0142581 |
| a 5 | -0.0002012 | -0.055392 |
| a 6 | -0.0522341 | -0.0487716 |
| a 7 | 0.0165501 | 0.153352 |
| a 8 | -0.009835 | -0.094641 |
| The E face of the 3rd lens | The F face of the 3rd lens | |
| K | 1.22588 | -2.88396 |
| a 2 | 0.006817 | -0.0285543 |
| a 3 | 0.193524 | 0.372514 |
| a 4 | -0.204952 | -0.652219 |
| a 5 | -0.069831 | 0.385534 |
| a 6 | 0.2118851 | 0.078661 |
| a 7 | 0.0122814 | -0.221056 |
| a 8 | -0.071586 | 0.083297 |
| The G face of the 4th lens | The H face of the 4th lens | |
| K | -20.22197 | 6.58493 |
| a 2 | 0.0384421 | -0.065318 |
| a 3 | -0.152876 | -0.033281 |
| a 4 | 0.236045 | 0.032694 |
| a 5 | -0.322161 | -0.021831 |
| a 6 | 0.261176 | -0.048779 |
| a 7 | -0.143315 | 0.066514 |
| a 8 | 0.028642 | -0.008634 |
| The I face of the 5th lens | The J face of the 5th lens | |
| K | 3.22158 | -2.19263 |
| a 2 | -0.048672 | -0.101967 |
| a 3 | -0.003512 | 0.0418425 |
| a 4 | 0.0292961 | -0.012384 |
| a 5 | -0.005753 | -8.524E-004 |
| a 6 | -0.002967 | 5.332E-004 |
| a 7 | 0.062135 | 3.216E-004 |
| a 8 | -0.0331746 | -6.891E-005 |
| The K face of the 6th lens | The L face of the 6th lens | |
| K | -28.2976 | -8.825155 |
| a 2 | -0.029461 | -0.033296 |
| a 3 | 0.005469 | 0.008217 |
| a 4 | 0.0022173 | -0.0022195 |
| a 5 | -5.285E-004 | 2.262E-004 |
| a 6 | 7.672E-005 | -2.841E-006 |
| a 7 | -2.964E-006 | -6.894E-008 |
| a 8 | 2.198E-007 | -2.587E-009 |
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thus, some details in embodiment should not formed restriction of the present utility model, the utility model by the scope that defines using appended claims as protection domain of the present utility model.
Claims (6)
1. focusing in a kind, the mobile lens of large image planes, it is characterized in that: from subject to image planes, (5) are provided with fixed first lens combination (1) successively, diaphragm (4), the second lens combination (2) can be moved along optical axis direction, fixed 3rd lens combination (3) and optical filter (6), described first lens combination (1) comprises the first lens (101), described second lens combination (2) (5) from subject to image planes comprises the second lens (201) successively, 3rd lens (202), 4th lens (203), described 3rd lens combination (3) (5) from subject to image planes comprises the 5th lens (301) successively, 6th lens (302).
2. the mobile lens of interior focusing according to claim 1, large image planes, it is characterized in that: described first lens (101), the second lens (201), the 4th lens (203), the 5th lens (301) focal power are just, described 3rd lens (202) focal power is negative, and described 6th lens (302) focal power is negative.
3. the mobile lens of interior focusing according to claim 2, large image planes, it is characterized in that: described first lens (101), the second lens (201), the 4th lens (203), the 5th lens (301) are falcate non-spherical lens, described 3rd lens (202) are double concave non-spherical lens, described 6th lens (302) two contrary flexure shape non-spherical lens.
4. the mobile lens of interior focusing according to claim 2, large image planes, is characterized in that: described first lens (101) image side is towards being recessed, and described 5th lens (301) thing side also inwardly concaves.
5. the mobile lens of interior focusing according to claim 1, large image planes, it is characterized in that: the material of described first lens (101), the 3rd lens (202), the 4th lens (203), the 6th lens (302) is plastics, the material of the second lens (201), the 5th lens (301) is glass.
6. the mobile lens of interior focusing according to claim 3, large image planes, is characterized in that: described first lens (101), the second lens (201), the 3rd lens (202), the 4th lens (203), the 5th lens (301), the 6th lens (302) aspheric surface configuration meet following equation:
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104570298A (en) * | 2015-01-04 | 2015-04-29 | 中山联合光电科技有限公司 | Inner focusing mobile phone lens with large image surface and high illumination |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570298A (en) * | 2015-01-04 | 2015-04-29 | 中山联合光电科技有限公司 | Inner focusing mobile phone lens with large image surface and high illumination |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGSHAN LIANHE PHOTOELECTRIC TECHNOLOGY CO., LTD Free format text: FORMER NAME: ZHONGSHAN UNION OPTIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 528400 Zhongshan Torch Development Zone, Guangdong Road, No. 10 Patentee after: Zhong Shan joint opto-electronic Science and Technology Co., Ltd. Address before: 528400 Zhongshan Torch Development Zone, Guangdong Road, No. 10 Patentee before: Union Optech (Zhongshan) Co., Ltd. |