CN108152924A - A kind of optical camera - Google Patents
A kind of optical camera Download PDFInfo
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- CN108152924A CN108152924A CN201810019709.4A CN201810019709A CN108152924A CN 108152924 A CN108152924 A CN 108152924A CN 201810019709 A CN201810019709 A CN 201810019709A CN 108152924 A CN108152924 A CN 108152924A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The invention discloses a kind of optical cameras.Along its optical axis, direction includes first lens with negative refracting power to the pick-up lens successively from the object side to image side, and second lens with positive refracting power, object side is convex surface, and image side surface is convex surface；One third lens with refracting power；One the 4th lens with refracting power；One the 5th lens with negative refracting power, object side is in being convex surface at optical axis, and for image side surface in being concave surface at optical axis, being outwardly away from optical axis in the concave surface has an at least convex surface；One has the 6th lens of refracting power, and image side surface has an at least point of inflexion in being concave surface at optical axis, at off-axis place；The optical camera lens meet the following conditions：1.8<(R51+R52)/(R51‑R52)<4, after adopting the above technical scheme, the present invention has system preferably optimization using the interval distribution between rational surface structure and corrected lens.The overall length of effective compact system also is able to while with big field angle, meets the needs of light and portableization instantly.
Description
Technical field：
The present invention relates to optical camera product technical field, more particularly to a kind of light applied in various electronic products
Learn camera.
Background technology：
With the rapid development of recent science and technology especially electronic technology, movable light electronic device has obtained rapid general
And.Electronic device is popularized so that the modules such as its optical imaging lens, influence sensor for being included have obtained vigorous growth.
At the same time, the application of image-forming module is more and more widely used, such as now highly popular smart mobile phone, tablet electricity
Brain, automobile data recorder, moving camera etc..
While great convenience is brought to life, requirement of the people to mobile electronic equipment terminal is also higher and higher, no
Disconnected pursuit more convenient and efficient and good mobile experience, this requires mobile terminal is more lightening, portability.At some
It it is also desirable to have larger field angle, such as preposition self-timer, game machine, panorama camera in special scenes, big wide-angle can make bat
The scene taken the photograph is more broad.Under driving herein, market is to small and light simultaneously but also with the camera module of big field angle
Demand increase drastically, particularly in the application in the fields such as mobile phone, on-vehicle lens.
Traditional light and thin type wide angle optical imaging lens use five chip lens arrangements more, but in smart mobile phone, tablet electricity
The high standards mobile terminal such as brain epoch prevailing, people pursue the image quality amount of higher-definition to there is better user experience.Tradition
Five chip lens arrangements refracting power distribution, aberration astigmatism correction, susceptibility distribution etc. have limitation, can not be into one
Step meets the imaging demand of more high standard.The six chip wide angle imaging optical lens groups further developed of existing mainstream, but lens
The increase of quantity causes the overall length of camera lens to be consequently increased, and can not effectively suppress lens group total length.Such as U.S. Patent number
Shown in the patent of US20150177484A1, although F.no f-numbers have reached 2.0, ensure that system has larger entering light
Amount, but its TTL overall length can not be suppressed effectively, reach 10mm, furthermore, only 100 ° of field angle maximum can not in performance
Meets the needs of modern mobile electronic device is to big visual field；For another example patent of the U.S. Patent Bulletin number for US9488806, visual field
Although angle HOV has reached 120 ° or more of big visual field, but the total length of the system can not meet miniaturization far more than 10mm
Demand, and it uses glass materials, more demanding in terms of molding, are unfavorable for large-scale volume production.Therefore, in the field
It is badly in need of a kind of wide angle optical imaging lens group, also ensures while small and light and be imaged with larger field, met
The wide-angle image demand of special scenes.
Invention content：
The technical problems to be solved by the invention are to overcome the deficiencies of the prior art and provide a kind of light of small and light
Learn camera.
In order to solve the above-mentioned technical problem, present invention employs following technical proposals：A kind of optical camera, the camera lens
Along its optical axis, direction includes head successively from the object side to image side：One first lens with negative refracting power, image side surface are concave surface；
One second lens with positive refracting power, object side are convex surface, and image side surface is convex surface；One third with refracting power is saturating
Mirror；One the 4th lens with refracting power；One the 5th lens with negative refracting power, object side are at close optical axis
Convex surface, for image side surface in being concave surface at optical axis, being outwardly away from optical axis in the concave surface has an at least convex surface；One in the wrong
The 6th lens of power are rolled over, image side surface has an at least point of inflexion in being concave surface at optical axis, at off-axis place；The optical camera
Camera lens meets the following conditions：(1)1.8<(R51+R52)/(R51-R52)<4, in the condition, relevant parameter represents that content is as follows：
R51：The radius of curvature of 5th lens object side；R52：The radius of curvature of 5th lens image side surface.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(2)0<F2i<
4, i=3,4,5,6, in the condition, relevant parameter represents that content is as follows：F2i:Second lens are to the combined focal length of the i-th lens.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(3)0.8<f/
f4<1.4, in the condition, relevant parameter represents that content is as follows：f：The focal length of optical imaging lens group；f4：The coke of 4th lens
Away from.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(4)1.6<
CT2/ET2<2.8, in the condition, relevant parameter represents that content is as follows：CT2:Center thickness of second lens on optical axis；ET2:
The edge thickness of second lens.
Furthermore, in above-mentioned technical proposal, the third lens object side is concave surface at dipped beam axis, image side surface
It is concave surface at dipped beam axis.
Furthermore, in above-mentioned technical proposal, the 4th lens object side is concave surface, and image side surface is convex surface.
Furthermore, in above-mentioned technical proposal, in the 5th lens and the 6th lens, the folding of wherein at least one lens
Penetrate rate N satisfactions：N>1.60.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(5)6<(R61+
R62)/(R61-R62)<12, in the condition, relevant parameter represents that content is as follows：R61：The radius of curvature of 6th lens object side；
R62：The radius of curvature of 6th lens image side surface.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(6)2.5<
(CT3+CT4)/T34<4.5, in the condition, relevant parameter represents that content is as follows：CT3：Center of the third lens on optical axis is thick
Degree；CT4：Center thickness of 4th lens on optical axis.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(7)1.8<
CT4/CT3<3, in the condition, relevant parameter represents that content is as follows：CT3：Center thickness of the third lens on optical axis；CT4：The
Center thickness of four lens on optical axis.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(8)0.4<f2/
f4<1.0, in the condition, relevant parameter represents that content is as follows：f2：The focal length of second lens；f4：The focal length of 4th lens.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(9)1.3<f3/
f5<4, in the condition, relevant parameter represents that content is as follows：f3：The focal length of third lens；f5：The focal length of 5th lens.
Furthermore, in above-mentioned technical proposal, the optical camera lens also meet the following conditions：(10)0.4<f/
TTL<0.6, in the condition, relevant parameter represents that content is as follows：f：The focal length of optical imaging lens group；TTL：Optical camera
Optics overall length.
After adopting the above technical scheme, optical camera lens provided by the present invention, use rational surface structure and
Interval distribution between corrected lens, has system preferably optimization.It also is able to effectively press while with big field angle
The overall length of system processed meets the needs of light and portableization instantly.Furthermore it is also equipped with larger F.no apertures so that during imaging
With more light-inletting quantities, the image quality being imaged when making finally to shoot is more clear full, reaches optimization.
Description of the drawings：
Fig. 1 is the structure diagram of the embodiment of the present invention one；
Fig. 2 is the astigmatism curve graph of the embodiment of the present invention one；
Fig. 3 is the distortion curve figure of the embodiment of the present invention one；
Fig. 4 is the spherical aberration curve graph of the embodiment of the present invention one；
Fig. 5 is the structure diagram of the embodiment of the present invention two；
Fig. 6 is the astigmatism curve graph of the embodiment of the present invention two；
Fig. 7 is the distortion curve figure of the embodiment of the present invention two；
Fig. 8 is the spherical aberration curve graph of the embodiment of the present invention two；
Fig. 9 is the structure diagram of the embodiment of the present invention three；
Figure 10 is the astigmatism curve graph of the embodiment of the present invention three；
Figure 11 is the distortion curve figure of the embodiment of the present invention three；
Figure 12 is the spherical aberration curve graph of the embodiment of the present invention three；
Figure 13 is the structure diagram of the embodiment of the present invention four；
Figure 14 is the astigmatism curve graph of the embodiment of the present invention four；
Figure 15 is the distortion curve figure of the embodiment of the present invention four；
Figure 16 is the spherical aberration curve graph of the embodiment of the present invention four；
Figure 17 is the structure diagram of the embodiment of the present invention five；
Figure 18 is the astigmatism curve graph of the embodiment of the present invention five；
Figure 19 is the distortion curve figure of the embodiment of the present invention five；
Figure 20 is the spherical aberration curve graph of the embodiment of the present invention five；
Figure 21 is the structure diagram of the embodiment of the present invention six；
Figure 22 is the astigmatism curve graph of the embodiment of the present invention six；
Figure 23 is the distortion curve figure of the embodiment of the present invention six；
Figure 24 is the spherical aberration curve graph of the embodiment of the present invention six；
Specific embodiment：
Embodiment one
The present invention is a kind of camera in electronic product.As shown in Figure 1, this be the embodiment of the present invention one structure
Schematic diagram.Along its optical axis 10, direction (direction from left to right i.e. shown in FIG. 1) includes the pick-up lens successively from the object side to image side：
One first lens 1 with negative refracting power, image side surface are concave surface；Contribute to whereby the light of large viewing into
Enter capture lens systems, to provide its wider visual angle
One second lens 2 with positive refracting power, object side are convex surface, and image side surface is convex surface；Camera lens can be provided
The positive refracting power of head corrects the aberration of part system
One third lens 3 with refracting power, object side are concave surface at optical axis, and image side surface is at optical axis
For concave surface, the astigmatism that can correct part system promotes image quality
One third lens 4 with refracting power, object side are a concave surface, and image side surface is a convex surface.
One the 5th lens 5 with negative refracting power, object side is in being convex surface at optical axis, and image side surface is in close
It is concave surface at optical axis, being outwardly away from optical axis in the concave surface has an at least convex surface, and it is at dipped beam axis and off-axis can to repair camera
The aberration at place improves the parsing power of camera lens
One has the 6th lens 6 of refracting power, and image side surface has at least one in being concave surface at optical axis, at off-axis place
The point of inflexion；Aberration of the camera with locating off axis at dipped beam axis can further be corrected
One optical filter 7, the optical filter 7 use the infrared fileter of plane；Filtering out influences the infrared light of image quality
The aspheric curve equation of above-mentioned each lens represents as follows：
Wherein, the point that it is Y apart from optical axis on aspherical that X, which is, the phase with being tangential on the section on vertex on aspherical optical axis
To height；R is radius of curvature；Y is the vertical range of the point and optical axis in aspheric curve；K is conical surface coefficient；AiFor the i-th rank
Asphericity coefficient.
Aperture 9 is provided between the first lens 1 and the second lens 2.5th lens, the 6th lens surface use
Contrary flexure point design, can effectively converge Off-axis-light, be incident upon the angle on photosensitive element with chip preset angle more
Add it is identical, and can further modified off-axis visual field aberration.
In addition, in the 5th lens and the 6th lens, the refractive index N of wherein at least one lens meets：N>1.60.
Above-mentioned all lens are used to be made of resin material.
With reference to shown in following table 1-1, above-mentioned each parts specifications parameter is as follows in the embodiment of the present invention one：
In above-mentioned table one, " surface " is by the surface of left-to-right each parts.Such as：" surface " corresponding " 1 " represents
First lens, 1 left side convex surface, corresponding radius of curvature are：5.868mm, thickness 0.368mm；The radius of curvature on right side convex surface
For：1.451mm, thickness 0.492mm.The refractive index of first lens 1 is 1.54, and focal length is -3.644mm.
In the present embodiment, the object side surface and image side surface of all lens are aspherical, aspheric in specific each lens
Face coefficient is as shown in table 1-2.
With reference to shown in table 1-3, this is the condition that lens assembly needs meet in the present embodiment one：
Specifically, with reference to shown in above-mentioned table 1-3, in the present embodiment one, it is necessary to meet following condition for head assembly.
(1)1.8<(R51+R52)/(R51-R52)<4, this condition is for adjusting interim key lens radius of curvature, having
Update the system aberration is imitated, one value of the present embodiment is：3.9893.
(2)0<F2i<4, i=3,4,5,6.The present embodiment value is：F23=1.8331, F24=1.5062, F25=
1.5167 F26=1.4298.
(3)0.8<f/f4<1.4, the ratio of the third focal length of lens and system focal length is controlled, rationally shares what the lens undertook
Refracting power.One value of the present embodiment is：0.8100.
(4)1.6<CT2/ET2<2.8, meeting this condition can make the middle thickness of the second lens more reasonable with side thickness rate value, profit
In injection molding, cooperation global design is compacter, conducive to miniaturization.One value of the present embodiment is：1.8156.
(5)6<(R61+R62)/(R61-R62)<12, meeting this relational expression can make the curvature of lens more suitable, make system
Compact overall structure realizes miniaturization conducive to system overall length is shortened.One value of the present embodiment is：6.4962.
(6)2.5<(CT3+CT4)/T34<4.5, meet this condition, it can a rational control middle section third lens the
The value of the air gap between middle thick and two lens of three lens, conducive to the miniaturization of global design so that there is preferable knot during assembling
Structure and tolerance, conducive to volume production.The present embodiment value is：4.2354.
(7)1.8<CT4/CT3<3, rationally control lens edge thickness and interior thickness ratio can be realized by meeting this condition
Value, conducive to the injection molding of eyeglass, conducive to volume production.The present embodiment value is：1.8230.
(8)0.4<f2/f4<1.0, meet the refracting power weight that this relational expression can suitably adjust the second lens third lens,
So that the part-structure is unlikely to excessively sensitive the present embodiment value is：0.6462.
(9)1.3<f3/f5<4, meet the refracting power weight that this relational expression can suitably adjust the 5th lens of third lens, make
The part-structure is unlikely to excessively sensitive the present embodiment value and is：1.4671.
(10)0.4<f/TTL<0.6, the present embodiment value is：0.4248.
In above-mentioned condition, relevant parameter represents that content is as follows：
f：The focal length of optical imaging lens group
f2：The focal length of second lens
f3：The focal length of third lens
f4：The focal length of third lens
f5：The focal length of 5th lens
f6：The focal length of 6th lens
fi:The focal length of i-th lens
f2i:Second lens are to the combined focal length of the i-th lens
R51：The radius of curvature of 5th lens object side
R52：The radius of curvature of 5th lens image side surface
R61：The radius of curvature of 6th lens object side
R62：The radius of curvature of 6th lens image side surface
ET2:The edge thickness of second lens
CT2:Center thickness of second lens on optical axis
CT3：Center thickness of the third lens on optical axis
CT4：Center thickness of the third lens on optical axis
T34：Third lens and air spacing of the third lens on optical axis
TTL：The optics overall length of optical camera lens.
From the above mentioned, after using above-mentioned technical conditions, the focal length f=1.84mm of the optical lens of the present embodiment one, aperture
Number Fno=2.24, FOV=60 ° of angle of half field-of view.With reference to shown in Fig. 2-Fig. 4, the present embodiment one has the following advantages：
1st, the present embodiment using the above structure, uses rational material and refracting power to arrange in pairs or groups, when meeting specific condition
When, entire optics has preferable light aggregate capabilities, is meeting high pixel request, while effectively reduce taking lens system
The total length of group, reaches lightening.
2nd, a kind of product of the present embodiment has the advantages that large aperture, and large aperture ensure that sufficient light-inletting quantity, can effectively be promoted
Sensitivity ensures preferable image quality
3rd, the present embodiment one, using suitable face type, extends to the non-of higher order using the structure of six aspherical lens
Asphere coefficient effectively corrects all kinds of aberrations such as the curvature of field, astigmatism, ratio chromatism,.As dominant wavelength astigmatism is integrally less than in Fig. 2
All band spherical aberration is integrally less than 0.01mm in 0.05mm, Fig. 4, and dominant wavelength is even more close to 0；There is preferably thin and thick ratio simultaneously,
Preferable susceptibility improves process rate, reduces production cost.
4th, the present embodiment one uses plastic material, has the characteristics that accurate die pressing using plastic material, realizes batch production,
The processing cost of optical element can be greatly lowered in this way, so that the cost of optical system significantly declines convenient for big model
Enclose popularization.
Embodiment two
As shown in Fig. 5-Fig. 8, this is the embodiment of the present invention two.
The present embodiment two is identical with one structure of the above embodiments.It is specifically shown in shown in the following table 2-1, each the zero of the present embodiment two
The specifications parameter of component is as follows：
Likewise, in the present embodiment two, the object side surface and image side surface of all lens be it is aspherical, it is specific each
Asphericity coefficient is as shown in table 2-2 in mirror.
With reference to shown in the following table 2-3, this is the condition that lens assembly needs meet in the present embodiment two：
It is shown in Table shown in 2-3, relative to above-described embodiment one, the condition design parameter that the present embodiment two needs to meet is in condition
In the range of adjusted.
After the present embodiment two uses above-mentioned technical conditions, the focal length f=2.11mm of the optical lens of the present embodiment two, aperture
Number Fno=2.27, FOV=60 ° of visual angle.
Embodiment three
As shown in Fig. 9-Figure 12, this is the embodiment of the present invention three, and the present embodiment three is identical with the above embodiments structure.
It see the table below shown in 3-1, the specifications parameter of each parts of the present embodiment three is as follows：
Likewise, in the present embodiment three, the object side surface and image side surface of all lens be it is aspherical, it is specific each
Asphericity coefficient is as shown in table 3-2 in mirror.
With reference to shown in the following table 3-3, this is the condition that lens assembly needs meet in the present embodiment three：
It is shown in Table shown in 4-3, relative to above-described embodiment, the condition design parameter that the present embodiment three needs to meet is in condition model
Enclose interior adjusted.
After the present embodiment three uses above-mentioned technical conditions, the focal length f=1.93mm of the optical lens of the present embodiment three, aperture
Number Fno=2.30, FOV=60 ° of visual angle.
Example IV
As shown in Figure 13 Figure 16, this is the embodiment of the present invention four.
The present embodiment four is identical with the above embodiments structure.It is specifically shown in shown in the following table 4-1, each zero of the present embodiment four
The specifications parameter of part is as follows：
Likewise, in the present embodiment four, the object side surface and image side surface of all lens be it is aspherical, it is specific each
Asphericity coefficient is as shown in table 4-2 in mirror.
With reference to shown in the following table 4-3, this is the condition that lens assembly needs meet in the present embodiment four：
After the present embodiment four uses above-mentioned technical conditions, the focal length f=1.79mm of the optical lens of the present embodiment four, aperture
Number Fno=2.24, FOV=60 ° of visual angle.
Embodiment five
As shown in Figure 17-Figure 20, this is the embodiment of the present invention five.The present embodiment five and the above embodiments structure phase
Together.It is specifically shown in shown in the following table 5-1, the specifications parameter of each parts of the present embodiment five is as follows：
Likewise, in the present embodiment five, the object side surface and image side surface of all lens be it is aspherical, it is specific each
Asphericity coefficient is as shown in table 5-2 in mirror.
With reference to shown in the following table 5-3, this is the condition that lens assembly needs meet in the present embodiment five：
It is shown in Table shown in 5-3, relative to above-described embodiment, the condition design parameter that the present embodiment five needs to meet is in condition model
Enclose interior adjusted.
After the present embodiment five uses above-mentioned technical conditions, the focal length f=1.74mm of the optical lens of the present embodiment five, aperture
Number Fno=2.27, FOV=60 ° of visual angle.
Embodiment six
As shown in Figure 21-Figure 24, this is the embodiment of the present invention six.
The present embodiment six is identical with the above embodiments structure.It is specifically shown in shown in the following table 6-1, each zero of the present embodiment six
The specifications parameter of part is as follows：
Likewise, in the present embodiment six, the object side surface and image side surface of all lens be it is aspherical, it is specific each
Asphericity coefficient is as shown in table 6-2 in mirror.
With reference to shown in the following table 6-3, this is the condition that lens assembly needs meet in the present embodiment six：
It is shown in Table shown in 6-3, relative to above-described embodiment, the condition design parameter that the present embodiment six needs to meet is in condition model
Enclose interior adjusted.After the present embodiment six uses above-mentioned technical conditions, the focal length f=of the optical lens of the present embodiment six
1.95mm, F-number Fno=2.27, FOV=62 ° of angle of half field-of view.
Certainly, the above is only a specific embodiment of the present invention, be not to limit the scope of the present invention, it is all according to
The equivalent change or modification that construction, feature and principle described in scope of the present invention patent are done, should all be included in Shen of the present invention
It please be in the scope of the claims.
Claims (13)
1. a kind of optical camera, it is characterised in that：Along its optical axis, direction includes the pick-up lens successively from the object side to image side：
One first lens with negative refracting power, image side surface are concave surface；
One second lens with positive refracting power, object side are convex surface, and image side surface is convex surface；
One third lens with refracting power；
One the 4th lens with refracting power；
One the 5th lens with negative refracting power, object side is in being convex surface at optical axis, and image side surface is in close to optical axis
Locate as concave surface, being outwardly away from optical axis in the concave surface has an at least convex surface；
One has the 6th lens of refracting power, and image side surface has an at least contrary flexure in being concave surface at optical axis, at off-axis place
Point；
The optical camera lens meet the following conditions：
(1)1.8<(R51+R52)/(R51-R52)<4, in the condition, relevant parameter represents that content is as follows：
R51：The radius of curvature of 5th lens object side；
R52：The radius of curvature of 5th lens image side surface.
2. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet with
Lower condition：
(2)0<F2i<4, i=3,4,5,6, in the condition, relevant parameter represents that content is as follows：
F2i:Second lens are to the combined focal length of the i-th lens.
3. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet with
Lower condition：
(3)0.8<f/f4<1.4, in the condition, relevant parameter represents that content is as follows：
f：The focal length of optical imaging lens group；
f4：The focal length of 4th lens.
4. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet with
Lower condition：
(4)1.6<CT2/ET2<2.8, in the condition, relevant parameter represents that content is as follows：
CT2:Center thickness of second lens on optical axis；
ET2:The edge thickness of second lens.
5. a kind of optical camera according to claim 1, it is characterised in that：Third lens object side is at dipped beam axis
Concave surface, image side surface are concave surface at dipped beam axis.
6. a kind of optical camera according to claim 1, it is characterised in that：4th lens object side be concave surface, image side
Face is convex surface.
7. a kind of optical camera according to claim 1, it is characterised in that：In the 5th lens and the 6th lens,
In at least one lens refractive index N meet：N>1.60.
8. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet with
Lower condition：
(5)6<(R61+R62)/(R61-R62)<12, in the condition, relevant parameter represents that content is as follows：
R61：The radius of curvature of 6th lens object side；
R62：The radius of curvature of 6th lens image side surface.
9. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet with
Lower condition：
(6)2.5<(CT3+CT4)/T34<4.5, in the condition, relevant parameter represents that content is as follows：
CT3：Center thickness of the third lens on optical axis；
CT4：Center thickness of 4th lens on optical axis；
T34：The air spacing of third lens and the 4th lens on optical axis.
10. a kind of optical camera according to claim 9, it is characterised in that：The optical camera lens also meet
The following conditions：
(7)1.8<CT4/CT3<3, in the condition, relevant parameter represents that content is as follows：
CT3：Center thickness of the third lens on optical axis；
CT4：Center thickness of 4th lens on optical axis.
11. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet
The following conditions：
(8)0.4<f2/f4<1.0, in the condition, relevant parameter represents that content is as follows：
f2：The focal length of second lens；
f4：The focal length of 4th lens.
12. a kind of optical camera according to claim 11, it is characterised in that：The optical camera lens also meet
The following conditions：
(9)1.3<f3/f5<4, in the condition, relevant parameter represents that content is as follows：
f3：The focal length of third lens；
f5：The focal length of 5th lens.
13. a kind of optical camera according to claim 1, it is characterised in that：The optical camera lens also meet
The following conditions：
(10)0.4<f/TTL<0.6, in the condition, relevant parameter represents that content is as follows：
f：The focal length of optical imaging lens group；
TTL：The optics overall length of optical camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019709.4A CN108152924B (en) | 2018-01-09 | 2018-01-09 | A kind of optical camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810019709.4A CN108152924B (en) | 2018-01-09 | 2018-01-09 | A kind of optical camera |
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| CN108152924B CN108152924B (en) | 2019-10-25 |
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| CN110187483A (en) * | 2019-06-03 | 2019-08-30 | 贵州旭业光电有限公司 | A kind of wide-angle lens and electronic equipment |
| CN110208926A (en) * | 2019-07-05 | 2019-09-06 | 浙江舜宇光学有限公司 | Optical imaging lens |
| WO2020082814A1 (en) * | 2018-10-22 | 2020-04-30 | 浙江舜宇光学有限公司 | Imaging lens |
| US11099358B2 (en) | 2018-01-24 | 2021-08-24 | Largan Precision Co., Ltd. | Photographing lens assembly, image capturing unit and electronic device |
| CN115032767A (en) * | 2019-11-21 | 2022-09-09 | 三星电机株式会社 | Optical imaging system |
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| CN104865682A (en) * | 2014-02-24 | 2015-08-26 | 大立光电股份有限公司 | Optical imaging lens assembly, image capturing device and mobile terminal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11099358B2 (en) | 2018-01-24 | 2021-08-24 | Largan Precision Co., Ltd. | Photographing lens assembly, image capturing unit and electronic device |
| US11740439B2 (en) | 2018-01-24 | 2023-08-29 | Largan Precision Co., Ltd. | Photographing lens assembly, image capturing unit and electronic device |
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| CN110187483A (en) * | 2019-06-03 | 2019-08-30 | 贵州旭业光电有限公司 | A kind of wide-angle lens and electronic equipment |
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| CN115032767A (en) * | 2019-11-21 | 2022-09-09 | 三星电机株式会社 | Optical imaging system |
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