CN103728714A - Zoom lens - Google Patents
Zoom lens Download PDFInfo
- Publication number
- CN103728714A CN103728714A CN201210392949.1A CN201210392949A CN103728714A CN 103728714 A CN103728714 A CN 103728714A CN 201210392949 A CN201210392949 A CN 201210392949A CN 103728714 A CN103728714 A CN 103728714A
- Authority
- CN
- China
- Prior art keywords
- lens
- zoom
- combination
- lens combination
- positive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a canister-type zoom lens which can maintain high optical performance when an optical anti-vibration function is added and can be low in cost, thin, wide in angle and high in multiplying power. The zoom lens is provided with a first lens battery (GR1) with positive focal power, a second lens battery (GR2) with negative focal power, a diaphragm ST, a third lens battery (GR3) with positive focal power and a fourth lens battery (GR4) with positive focal power in sequence from the object side. The first lens battery (GR1) is formed by combining a bonding lens and a convex lens L3 from the object side, wherein the bonding lens is composed of a concave lens L1 and a convex lens L2. The second lens battery (GR2) is formed by combining a concave lens L4, a concave lens L5 and a convex lens L6 from the object side. The third lens battery (GR3) is formed by combining a bonding lens and a convex lens L9 from the object side, wherein the bonding lens is composed of a convex lens L7 and a concave lens L8. The first lens battery (GR1) and the third lens battery (GR3) move along the optical axis, so that multiplying power change is realized. Furthermore, by means of meeting certain conditions, the canister-type zoom lens can be high in multiplying power, wide in angle and thin even at low cost under the condition that high performance is met.
Description
Technical field
The present invention relates to be suitable for being loaded in zoom ratio in the small-sized image pickup devices such as digital camera or home-use video camera and require the high zoom camera lens 10 times of 16 times of left and right.
Background technology
In recent years, digital camera and home-use camera pixel require more and more higher, and multiplying power requires also increasing gradually.In pixel and multiplying power, require higher in the situation that, also to require wide-angle, slimming and low cost simultaneously.Through consulting Patents document, 10 times of above camera lenses are generally all used at least 2 aspheric surface moulded glass, and polylith ED material.Adopt in this way, cost can sharply rise, and competitive power sharply declines.First the present invention considers from cost angle, adopts plastic aspherical element and ED material adapted, realizes high pixel, high magnification, wide-angle, cost degradation simultaneously.
Summary of the invention
The present invention is in order to solve described prior art problem, even if its object is to provide a kind of, in the situation that adding optics anti-vibration functions, also high optical property can be maintained, and low cost, slimming, wide-angle, powerful heavy cylinder zoom lens can be realized simultaneously.
In order to solve described problem, to realize object, a first aspect of the present invention provides a kind of heavy cylinder zoom lens, and it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke.
When the zoom of carrying out from wide-angle side to telescope end, described first lens group and the 3rd lens combination are moved along optical axis direction object space, thereby carry out zoom.And by described the 4th lens combination, along optical axis, move, can compensate the image planes that caused by zoom in the movement of optical axis direction, and carry out focus.
And the mode with the formula of meeting the following conditions (1), (2) forms:
0.5＜|MO1/f1|＜0.6------(1)
1.5＜|MO2/f3|＜2.2------(2)
Wherein:
MO1: first lens group is from wide-angle side to telescope end amount of movement;
MO3: the 3rd lens combination is from wide-angle side to telescope end amount of movement;
F1: the focal length of first lens group;
F3: the focal length of the 3rd lens combination;
According to described first aspect, meeting under the prerequisite of optical property demand, realize 10 times of above high magnification wide-angle lens simultaneously.
In addition, a second aspect of the present invention provides a kind of heavy cylinder zoom lens, and it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke.It is characterized in that, wherein the second lens combination is combined by negative lens L4, negative lens L5, positive lens L6 from the object side to image side successively.Wherein L4 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface.And the first surface of L4 eyeglass is crooked to image space.And the mode with the formula of meeting the following conditions (8), (9), (10) forms:
VD4＞50------(8)
VD6＜20------(9)
ND6＞1.9------(10)
Wherein:
VD4: the 4th lens dispersion;
VD6: the 6th lens dispersion;
ND6: the 6th index of refraction in lens.
According to described second aspect, meeting under the prerequisite of optical property demand, L4 is used glass lens, has significantly reduced cost.And L4 first surface is crooked to image space, avoid interfering with first lens arrangement of mirrors sheet, thereby reduce the airspace between first lens group and the second lens combination, realize the slimming of camera lens.
In addition, a third aspect of the present invention provides a kind of heavy cylinder zoom lens, and it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke.It is characterized in that, wherein the 3rd lens combination is combined by positive lens L7, negative lens L8, positive lens L9 from the object side to image side successively.Wherein L7 and L8 are combined into balsaming lens.Wherein L9 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface.And second of L8 eyeglass is crooked to image space with the first surface of L9 eyeglass.And the mode with the formula of meeting the following conditions (11), (12), (13), (14), (15) forms:
VD7＞40------(11)
ND7＞1.8------(12)
5＜VD7-VD8＜15------(13)
VD9＞50------(14)
0.8＜r14/r15＜1.2------(15)
Wherein:
VD7: the 7th lens dispersion;
VD8: the 8th lens dispersion;
VD9: the 9th lens dispersion;
ND7: the 7th index of refraction in lens.
R14: the radius of the 8th second, lens;
R15: the radius of the 9th lens first surface.
According to the described third aspect, meeting under the prerequisite of optical property demand, L9 is used glass lens, has significantly reduced cost.
In addition, a fourth aspect of the present invention provides a kind of heavy cylinder zoom lens, and it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke.It is characterized in that, wherein between the second lens combination and the 3rd lens combination, comprise a diaphragm, and stop position is near the 3rd lens combination first eyeglass first surface.
According to described fourth aspect, meeting under the prerequisite of optical property demand, due to the thing side configuration aperture device without in the 3rd lens combination, thereby can dwindle the second lens combination and the airspace of the 3rd lens combination under products C LOSE state, so just increase the stroke that the 3rd lens combination moves in zoom, thereby realized higher multiplying power.Because the second lens combination and the 3rd airspace of lens combination under CLOSE state have dwindled, realized the slimming of product.
In addition, a fifth aspect of the present invention provides a kind of heavy cylinder zoom lens, and it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke.
Thickness on the optical axis of establishing described first lens group to the four lens combination is respectively LT1, LT2, LT3, LT4; If while being DIMGMAX for the imaging circular diameter of maximum incident ray, meet conditional below:
(LT1+LT2+LT3+LT4)/DIMGMAX＜1.75------(3)
According to described the 5th aspect, meeting under the prerequisite of optical property demand, can dwindle the thickness of camera lens on optical axis, make camera lens realize slimming under CLOSE state.
According to described first aspect to the five aspect features, the present invention has following effect, even if that is: provide a kind of, in the situation that adding optics anti-vibration functions, also high optical property can be maintained, and low cost, slimming, wide-angle, powerful heavy cylinder zoom lens can be realized simultaneously.
Accompanying drawing explanation
Fig. 1: the embodiment of the present invention is along the section of optical axis;
Fig. 2: the spherical aberration diagram of embodiment of the present invention wide-angle side;
Fig. 3: the astigmatism aberration diagram of embodiment of the present invention wide-angle side;
Fig. 4: the distortion aberration diagram of embodiment of the present invention wide-angle side;
Fig. 5: the spherical aberration diagram in embodiment of the present invention centre position;
Fig. 6: the astigmatism aberration diagram in embodiment of the present invention centre position;
Fig. 7: the distortion aberration diagram in embodiment of the present invention centre position;
Fig. 8: the spherical aberration diagram of embodiment of the present invention telescope end;
Fig. 9: the astigmatism aberration diagram of embodiment of the present invention telescope end;
Figure 10: the distortion aberration diagram of embodiment of the present invention telescope end.
Description of symbols
GR1: first lens group
GR2: the second lens combination
GR3: the 3rd lens combination
GR4: the 4th lens combination L1, L4, L5, L8
Negative lens L2, L3, L6, L7, L9
Positive lens IMG image planes
ST diaphragm
FT optical filter
CG cover glass
Embodiment
To the description of at least one exemplary, being only illustrative below, is not and to use and to be limited the present invention, its purposes.
Below can not discuss technique, technology, equipment and material known to the those of ordinary skill of relevant field in detail, for example the manufacture of lens element and their material, compensate excessive distortion by DSP etc.But they are the part for this instructions can be realized in due course.
Herein in institute's diagram and all examples of discussing, any concrete value, for example zoom ratio and F number should be construed as merely illustrative, rather than restrictive.Therefore, other embodiment of exemplary can have different values.
Below, with reference to accompanying drawing, the preferred implementation of the heavy cylinder of the present invention zoom lens is elaborated.The heavy cylinder zoom lens of this embodiment is configured to, as indicated in Fig. 1, from thing side, dispose in order: the 4th lens combination that there is the first lens group of positive light coke, second lens combination with negative power, diaphragm, there is the 3rd lens combination of positive light coke and there is positive light coke.In addition, between the 4th lens combination GR4 and image planes IMG, dispose the light filter FT of the formations such as infrared ray beam cut filter or optical low-pass filter and the cover glass CG of capturing element.These light filters FT and cover glass CG configure as required.When the zoom of carrying out from wide-angle side to telescope end, described first lens group and the 3rd lens combination are moved along optical axis direction object space, thereby carry out zoom.And by described the 4th lens combination, along optical axis, move, can compensate the image planes that caused by zoom in the movement of optical axis direction, and carry out focus.
And the mode with the formula of meeting the following conditions (1), (2) forms:
0.5＜|MO1/f1|＜0.6------(1)
1.5＜|MO2/f3|＜2.2------(2)
Thickness on the optical axis of establishing described first lens group to the four lens combination is respectively LT1, LT2, LT3, LT4; If while being DIMGMAX for the imaging circular diameter of maximum incident ray, meet conditional below:
(LT1+LT2+LT3+LT4)/DIMGMAX＜1.75------(3)
Below each lens combination is elaborated.First lens group (GR1) is combined by negative lens L1, positive lens L2, positive lens L3 from the object side to image side successively.Wherein L1 and L2 are combined into balsaming lens.The first surface of L1 and L3 and second are all to curvature of the image, and first face of L2 is also to curvature of the image.Second face of L2 has larger radius, to object space or image space bending, performance do not had a significant effect.First lens group forms in the mode of the formula of meeting the following conditions (4), (5), (6), (7):
VD1＜25------(4)
VD2＞60------(5)
VD3＞50------(6)
VD2-VD1＞45------(7)
The second lens combination is combined by negative lens L4, negative lens L5, positive lens L6 from the object side to image side successively.Wherein L4 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface.And the first surface of L4 and L6 and second are all crooked to image space; The first surface of L5 is crooked to object space, and second crooked towards image space.And the mode with the formula of meeting the following conditions (8), (9), (10) forms:
VD4＞50------(8)
VD6＜20------(9)
ND6＞1.9------(10)
The 3rd lens combination is combined by positive lens L7, negative lens L8, positive lens L9 from the object side to image side successively.Wherein L7 and L8 are combined into balsaming lens, and L9 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface.And first of L7 is towards curvature of the image, and second crooked towards object space; First of L8 is crooked towards object space, and second crooked towards image space; Two faces of L9 are all to curvature of the image.And the mode with the formula of meeting the following conditions (11), (12), (13), (14), (15) forms:
VD7＞40------(11)
ND7＞1.8------(12)
5＜VD7-VD8＜15------(13)
VD9＞50------(14)
0.8＜r14/r15＜1.2------(15)
The following describes the effect of zoom lens as constituted above
Conditional (1) and conditional (2) have been stipulated first lens group and the amount of movement of the 3rd lens combination in zoom process and the suitable relation of refracting power.If surpass the upper limit of conditional (1) and conditional (2), although sought higher multiplying power, the distortion of wide-angle side, the aberration of telescope end all can become greater to and affect performance.Solve this two problems, need to increase cost, such as L4 and L9 being replaced with to the model eyeglass of high index of refraction.So just lost and sought object cheaply.As surpassed, roll off the production line, can not obtain high magnification.
Conditional (3) means heavy cylinder zoom lens for the dwindling embodiment condition formula of thickness on optical axis when CLOSE.In conditional (3), LT1, LT2, LT3, any one change of LT4 thickness greatly, all can cause the increase of thickness on optical axis, can not realize sufficient slimming, therefore not preferred.
Conditional (4) is to control aberration and the spherical aberration of telescope end to conditional (14), if not in setting range, the performance of telescope end will can not be guaranteed.Wherein conditional (11) is also to control aberration and the spherical aberration conditional of wide-angle side to conditional (14), if not in setting range, the performance of wide-angle side will can not be guaranteed.
Conditional (15) is in order to control aberration and the spherical aberration of telescope end and wide-angle side, and assembling tolerance, if not in scope, performance will can not be guaranteed, and assembling tolerance also can be tighter.To not reach the suitableeest effect.
As shown in Fig. 2-10, the following describes the concrete Numerical implementation example of zoom lens involved in the present invention.
The focal length of wide-angle side (FW)=4.86
The focal length in centre position (F)=18.1
The focal length of telescope end (FT)=53.27
Optics multiplying power 10.96X
Fno.=3.3 (wide-angle side)～5.7 (centre position)～6.28 (telescope end)
° (centre position)～8.4, FOV=82 ° of (wide-angle side)～24.5 ° (telescope end)
The data of relevant conditional (1)～(15) arrange as follows successively:
MO1/f1＝0.55
MO2/f3＝1.856
(LT1+LT2+LT3+LT4)/DIMGMAX＝1.72
VD1＝18
VD2＝68.6
VD3＝63.4
VD2-VD1＝50.62
VD4＝55.75
VD6＝17.5
ND6＝1.96
VD7＝42.7
ND7＝1.83
VD7-VD8＝10.4
VD9＝55.7
r14/r15＝0.98
Embodiment detailed data table:
| Surf | Type | Radius | Thickness | ND | VD | |
| OBJ | STANDARD | | Infini ty | |||
| 1 | STANDARD | 26.381 | 0.500 | 1.95 | 17.98 | |
| 2 | STANDARD | 19.521 | 2.060 | 1.59 | 68.62 | |
| 3 | STANDARD | Infinity | 0.050 | |||
| 4 | STANDARD | 18.506 | 1.350 | 1.62 | 63.40 | |
| 5 | STANDARD | 53.203 | d5 | |||
| 6 | EVENASPH | 21.676 | 0.520 | 1.53 | 55.75 | |
| 7 | EVENASPH | 3.943 | 1.711 | |||
| 8 | STANDARD | -7.706 | 0.350 | 1.80 | 46.58 | |
| 9 | STANDARD | 7.706 | 0.095 | |||
| 10 | STANDARD | 6.706 | 0.868 | 1.96 | 17.47 | |
| 11 | STANDARD | 21.274 | d11 | |||
| STO | STANDARD | 3.909 | 2.424 | 1.83 | 42.71 | |
| 13 | STANDARD | -2.812 | 0.485 | 1.85 | 32.27 | |
| 14 | STANDARD | 3.917 | 0.052 | |||
| 15 | EVENASPH | 4.003 | 1.000 | 1.53 | 55.75 | |
| 16 | EVENASPH | 83.680 | d16 | |||
| 17 | STANDARD | 117.720 | 1.820 | 1.54 | 59.72 | |
| 18 | STANDARD | -9.492 | d18 | |||
| 19 | STANDARD | Infinity | 0.300 | 1.52 | 64.20 | |
| 20 | STANDARD | Infini ty | 0.300 | |||
| 21 | STANDARD | Infinity | 0.500 | 1.52 | 64.20 | |
| 22 | STANDARD | Infinity | 0.400 |
D5=0.25 (wide-angle side)～8 (centre position)～14.186 (telescope end)
D11=6.377 (wide-angle side)～3.35 (centre position)～0.25 (telescope end)
D16=2.197 (wide-angle side)～12.7 (centre position)～14.66 (telescope end)
D18=4.43 (wide-angle side)～2.46 (centre position)～2.44 (telescope end)
Asphericity coefficient:
| Face | s6 | s7 | s15 | s16 |
| K | -1.60E+02 | -4.46E-01 | -1.02E+00 | 1.87E+03 |
| b | -5.50E-04 | -1.61E-03 | -6.33E-04 | 4.88E-03 |
| c | 5.96E-05 | 2.34E-04 | -1.16E-04 | 5.36E-04 |
| d | -3.42E-07 | -9.55E-07 | -1.31E-04 | -1.69E-04 |
| e | -1.86E-08 | 8.85E-07 | 3.45E-05 | 7.63E-06 |
| f | -9.41E-10 | 6.10E-08 | 1.27E-05 | 1.57E-05 |
| g | -9.65E-12 | -1.36E-09 | 9.87E-06 | |
| h | 1.29E-12 | 2.15E-09 | -4.79E-06 |
In addition,, in described numeric data, Surf represents the face of lens, Type represents the type of lens face, and Radius represents the radius of lens face, and Thickness represents thickness or the airspace of lens, ND represents that lens are in the refractive index of d light, and VD represents the abbe number of lens, and STO represents diaphragm hole.
In addition, described each aspherical shape, is Z in the amount of recess of establishing the face that is parallel to optical axis, and establishing apart from the height of optical axis is h, and the direct of travel of establishing light is timing, by following formula, represents.
Wherein, the curvature that C is vertex of surface (=1/r), K is Ke Nike constant, a, b, c, d, e, f, g, h are respectively 4 times, 6 times, 8 times, 10 times, 12 times, the asphericity coefficient of 14 times, 16 times (power).
As above explanation according to the present invention, also can maintain high optical property even if can provide a kind of in the situation that adding optics anti-vibration functions, and can realize the heavy cylinder zoom lens of low cost, slimming, wide-angle, high magnification (more than 10 times) simultaneously.
As mentioned above, the heavy cylinder of the present invention zoom lens is useful for camera head, is particularly suitable for the camera head that digital camera or home-use video camera etc. require miniaturization.
The above; be only preferred embodiment of the present invention, not in order to limit the present invention, any trickle modification that every foundation technical spirit of the present invention is done above embodiment; be equal to and replace and improve, within all should being included in the protection domain of technical solution of the present invention.
Claims (8)
1. a zoom lens, it is configured to from thing side and disposes in order: have the first lens group of positive light coke, second lens combination with negative power, diaphragm, have the 3rd group of lens combination of positive light coke and the 4th lens combination with positive light coke;
When the zoom of carrying out from wide-angle side to telescope end, described first lens group and the 3rd lens combination are moved along optical axis direction object space, thereby carry out zoom.And by described the 4th lens combination, along optical axis, move, can compensate the image planes that caused by zoom in the movement of optical axis direction, and carry out focus;
And the mode with the formula of meeting the following conditions (1), (2) forms:
0.5＜|MO1/f1|＜0.6------(1)
1.5＜|MO2/f3|＜2.2------(2)
Wherein:
MO1: first lens group is from wide-angle side to telescope end amount of movement;
MO3: the 3rd lens combination is from wide-angle side to telescope end amount of movement;
F1: the focal length of first lens group;
F3: the focal length of the 3rd lens combination.
2. a zoom lens, it is configured to from thing side and disposes in order: the 4th lens combination that have the first lens group of positive light coke, second lens combination with negative power, diaphragm, has the 3rd lens combination of positive light coke and have positive light coke;
Thickness on the optical axis of establishing described first lens group to the four lens combination is respectively LT1, LT2, LT3, LT4; If while being DIMGMAX for the imaging circular diameter of maximum incident ray, meet conditional below:
(LT1+LT2+LT3+LT4)/DIMGMAX＜1.75------(3)。
3. zoom lens according to claim 1, is characterized in that: described first lens group is combined by negative lens L1, positive lens L2, positive lens L3 from the object side to image side successively; Wherein L1 and L2 are combined into balsaming lens.And the mode with the formula of meeting the following conditions (4), (5), (6), (7) forms:
VD1＜25 ------(4)
VD2＞60 ------(5)
VD3＞50 ------(6)
VD2-VD1＞45 ------(7)
Wherein:
VD1: first lens dispersion;
VD2: the second lens dispersion;
VD3: the 3rd lens dispersion.
4. zoom lens according to claim 1, is characterized in that: described the second lens combination is combined by negative lens L4, negative lens L5, positive lens L6 from the object side to image side successively; And with full
The mode that is enough to lower conditional (8), (9), (10) forms:
VD4＞50------(8)
VD6＜20------(9)
ND6＞1.9------(10)
Wherein:
VD4: the 4th lens dispersion;
VD6: the 6th lens dispersion;
ND6: the 6th index of refraction in lens.
5. zoom lens according to claim 1, is characterized in that: described the 3rd lens combination is combined by positive lens L7, negative lens L8, positive lens L9 from the object side to image side successively.Wherein L7 and L8 are combined into balsaming lens.And the mode with the formula of meeting the following conditions (11), (12), (13), (14) forms:
VD7＞40 ------(11)
ND7＞1.8 ------(12)
5＜VD7-VD8＜15 ------(13)
VD9＞50 ------(14)
Wherein:
VD7: the 7th lens dispersion;
VD8: the 8th lens dispersion;
VD9: the 9th lens dispersion;
ND7: the 7th index of refraction in lens.
6. zoom lens according to claim 1, is characterized in that:
Between the second lens combination and the 3rd lens combination, comprise a diaphragm, and stop position is near the 3rd lens combination first eyeglass.
7. zoom lens according to claim 4, is characterized in that:
Wherein L4 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface.And the first surface of L4 eyeglass is crooked to image space.
8. zoom lens according to claim 5, is characterized in that:
Wherein L9 is plastic aspherical element eyeglass, and wherein having a face at least is aspheric surface, and the first surface of second of L8 eyeglass and L9 eyeglass is crooked to image space, and forms in the mode of the formula of meeting the following conditions:
0.8＜r14/r15＜1.2------(15)
Wherein:
R14: the radius of the 8th second, lens;
R15: the radius of the 9th lens first surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210392949.1A CN103728714A (en) | 2012-10-16 | 2012-10-16 | Zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210392949.1A CN103728714A (en) | 2012-10-16 | 2012-10-16 | Zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103728714A true CN103728714A (en) | 2014-04-16 |
Family
ID=50452862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210392949.1A Pending CN103728714A (en) | 2012-10-16 | 2012-10-16 | Zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103728714A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842527A (en) * | 2016-11-10 | 2017-06-13 | 嘉兴中润光学科技有限公司 | A kind of zoom lens |
| CN108802981A (en) * | 2017-04-27 | 2018-11-13 | 株式会社腾龙 | Zoom lens and photographic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285317A (en) * | 1990-11-22 | 1994-02-08 | Olympus Optical Co., Ltd. | Zoom lens system |
| US20050190457A1 (en) * | 2004-02-27 | 2005-09-01 | Kazuyasu Ohashi | Zooming lens system and device using the zooming lens system |
| JP2006106117A (en) * | 2004-09-30 | 2006-04-20 | Nikon Corp | Zoom lens |
| JP2007293051A (en) * | 2006-04-25 | 2007-11-08 | Matsushita Electric Ind Co Ltd | Zoom lens system, imaging apparatus, and camera |
-
2012
- 2012-10-16 CN CN201210392949.1A patent/CN103728714A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285317A (en) * | 1990-11-22 | 1994-02-08 | Olympus Optical Co., Ltd. | Zoom lens system |
| US20050190457A1 (en) * | 2004-02-27 | 2005-09-01 | Kazuyasu Ohashi | Zooming lens system and device using the zooming lens system |
| JP2006106117A (en) * | 2004-09-30 | 2006-04-20 | Nikon Corp | Zoom lens |
| JP2007293051A (en) * | 2006-04-25 | 2007-11-08 | Matsushita Electric Ind Co Ltd | Zoom lens system, imaging apparatus, and camera |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842527A (en) * | 2016-11-10 | 2017-06-13 | 嘉兴中润光学科技有限公司 | A kind of zoom lens |
| CN108802981A (en) * | 2017-04-27 | 2018-11-13 | 株式会社腾龙 | Zoom lens and photographic device |
| JP2018185489A (en) * | 2017-04-27 | 2018-11-22 | 株式会社タムロン | Zoom lens and imaging apparatus |
| CN108802981B (en) * | 2017-04-27 | 2021-11-12 | 株式会社腾龙 | Zoom lens and image pickup apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101941248B1 (en) | Zoom lens and imaging apparatus employing the same | |
| CN102890331B (en) | Image pickup optical lens assembly | |
| JP6741019B2 (en) | Imaging lens and in-vehicle imaging device | |
| JP5502184B2 (en) | Projection lens | |
| KR20140125680A (en) | Wide angle lens and imaging apparatus employing the same | |
| CN103676098A (en) | Optical image capturing lens assembly | |
| KR20150062803A (en) | Zoom lens and photographing lens having the same | |
| WO2016051672A1 (en) | Zoom lens system, image capturing device | |
| JP2013083921A (en) | Zoom lens and image forming apparatus | |
| JP2013134498A (en) | Wide-angle zoom lens | |
| JP5548759B2 (en) | Zoom lens | |
| CN103250083A (en) | Zoom lens and imaging device | |
| JP2016045491A (en) | Zoom lens system, image capturing device, and camera | |
| JP2013225019A (en) | Infrared zoom lens | |
| JP2016103035A (en) | Image capturing lens system and image capturing device | |
| CN102478705B (en) | Zoom lens | |
| JP2008241904A (en) | Zoom lens | |
| JP2013114262A (en) | Zoom lens system | |
| CN109143555B (en) | Zoom lens | |
| CN103323934A (en) | Imaging lens assembly | |
| CN103620471B (en) | Zoom lens and imaging device | |
| CN102122058A (en) | Varifocal optical system | |
| JP2017116919A (en) | Zoom lens system and image capturing device | |
| JP2012093761A (en) | Zoom lens | |
| KR102013241B1 (en) | Zoom lens and photographing apparatus having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |