CN102253473B - Low-cost and high-resolution optical zoom lens - Google Patents
Low-cost and high-resolution optical zoom lens Download PDFInfo
- Publication number
- CN102253473B CN102253473B CN2011100093337A CN201110009333A CN102253473B CN 102253473 B CN102253473 B CN 102253473B CN 2011100093337 A CN2011100093337 A CN 2011100093337A CN 201110009333 A CN201110009333 A CN 201110009333A CN 102253473 B CN102253473 B CN 102253473B
- Authority
- CN
- China
- Prior art keywords
- lens
- optical
- refractive index
- lens group
- glass
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 200
- 239000004033 plastic Substances 0.000 claims abstract description 34
- 229920003023 plastic Polymers 0.000 claims abstract description 34
- 230000004075 alteration Effects 0.000 claims abstract description 17
- 241000219739 Lens Species 0.000 claims description 291
- 210000000695 crystalline len Anatomy 0.000 claims description 291
- 239000011521 glass Substances 0.000 claims description 72
- 238000006664 bond formation reaction Methods 0.000 claims description 4
- 239000006059 cover glass Substances 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Lenses (AREA)
Abstract
The invention discloses a low-cost and high-resolution optical zoom lens which comprises a front fixed lens group with positive refractive index, an optical zoom group with negative refractive index, a rear optical fixing group with positive refractive index, an optical compensation group with positive refractive index, and a field curvature calibration group with negative refractive index in sequence from the object side; and at least one of a second optical lens group and a third optical lens group comprises an aspherical plastic lens. As the second optical lens group and the third optical lens group adopt the plastic aspherical plastic lenses, the plastic aspherical plastic lenses can be used for calibrating the spherical aberration of the optical system together, optimizing the imaging performance of the optical system, and reducing the influence of the outside temperature on the performances of the optical system; in addition, a fifth optical lens group is additionally arranged at the image side of a fourth lens group, and used for calibrating the field curvature of the optical system, improving the curved imaging surface of the optical system, and improving the quality of images, thus the requirement of the whole optical zoom lens on high resolution, low cost, small volume and high optical zooming ratio is achieved.
Description
Technical field
The Zoom optic lens field that the present invention relates to adopt non-spherical lens and be used to make a video recording or take a picture, in particular, what improvement related to is a kind of zoom lens of high-resolution optical cheaply.
Background technology
In recent years, along with home-use HDTV, security protection with high definition screen and education with the developing rapidly of high definition field of display devices such as high definition demonstration, the imaging device of front end is also had higher requirement; The image that common picture pick-up device is before gathered, common resolution are generally 420 lines or 480 lines, maximum 500 lines, and the requirement that shows of high definition now must reach 1080 lines, even the requirement that SD shows also reaches 720 lines at least; Obviously, existing imaging terminal is the requirement that optical lens has been difficult to reach the high definition display device.
In addition, in existing high-resolution optical camera lens, the still glass aspheric surface that generally adopts.But the glass aspheric surface need be hot-forming in mould, and the temperature of its mould will reach the yield temperature of glass material at least during hot pressing, just can make the glass material deliquescing, so that be pressed into required aspherical shape.Although glass material manufacturer was all at the glass material of making great efforts to release low yield temperature in recent years, yet its yield temperature still will be more than hundreds of degree temperature.Because the high temperature of required hundreds of degree during hot pressing so the life-span generation of mould is influenced greatly, finally causes production cost high.
Thus it is clear that, existingly to adopt plastic aspherical element in order reducing cost, but not reach the requirement that high definition shows; And adopt the aspheric product of glass, though can reach the requirement of high definition display device, can cause high cost, the development of restriction industry.Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The objective of the invention is to, a kind of zoom lens of high-resolution optical cheaply is provided, can satisfy and realize advantages of small volume and low cost when having the high definition resolution requirement now, advance the development of industry.
Technical scheme of the present invention is following: a kind of zoom lens of high-resolution optical cheaply, comprise first optical lens group, second optical lens group, the 3rd optical lens group and the 4th optical lens group that begin to set gradually from the thing side, wherein:
First optical lens group is set to preceding fixed lens group, has positive refractive index and stationkeeping;
Second optical lens group is set to optics and becomes doubly group, has negative refractive index, can move along optical axis;
The 3rd optical lens group is set to fixation group behind the optics, has positive refractive index and stationkeeping;
The 4th optical lens group is set to the optical compensation group, has positive refractive index, can move along optical axis;
Wherein:
Comprise one piece of aspherical plastic lens in second optical lens group; Also comprise one piece of aspherical plastic lens in the 3rd optical lens group; The spherical aberration that all is used for correcting optical system, and the 3rd optical lens group is made up of one piece of plastic aspherical element lens and three pieces of glass lenss of beginning from the thing side; Wherein, the plastic aspherical element lens have positive refractive index, and the first piece of glass lens that begins from the thing side has positive refractive index, and second piece of glass lens and the 3rd piece of glass lens all have negative refractive index;
The 4th optical lens group curvature of field correction group is set as the 5th optical lens group as side, be used for the curvature of field of correcting optical system.
The described zoom lens of high-resolution optical cheaply, wherein:, have at least one side to be set to aspheric surface in its two sides for the plastic aspherical element lens in second optical lens group.
The described zoom lens of high-resolution optical cheaply, wherein:, have at least one side to be set to aspheric surface in its two sides for the plastic aspherical element lens in the 3rd optical lens group.
The described zoom lens of high-resolution optical cheaply, wherein: the 5th optical lens group is set to one piece of glass lens, has negative refractive index.
The described zoom lens of high-resolution optical cheaply, wherein: the 4th optical lens group is made up of two pieces of glass lenss; Wherein, one piece of glass lens of thing side has negative refractive index, has positive refractive index as one piece of glass lens of side.
The described zoom lens of high-resolution optical cheaply, wherein: first optical lens group is made up of four pieces of glass lenss; Wherein, the first piece of glass lens that begins from the thing side has negative refractive index, and second piece of glass lens has positive refractive index, and the 3rd piece of glass lens has positive refractive index, and the 4th piece of glass lens has positive refractive index; First piece of glass lens and second piece of bonding formation balsaming lens of glass lens are used for correcting chromatic aberration.
The described zoom lens of high-resolution optical cheaply, wherein: second optical lens group is made up of three pieces of glass lenss and one piece of plastic aspherical element lens of beginning from the thing side; Wherein, three pieces of glass lenss all have negative refractive index, and the plastic aspherical element lens have positive refractive index, the 3rd piece of glass lens and second piece of bonding formation balsaming lens of glass lens.
The described zoom lens of high-resolution optical cheaply, wherein: between second optical lens group and the 3rd optical lens group, diaphragm and shutter are set.
The described zoom lens of high-resolution optical cheaply, wherein: as side image sensor cover glass and filter plate equivalence glass is set in the 5th optical lens group.
A kind of zoom lens of high-resolution optical cheaply provided by the present invention; Owing in second optical lens group and the 3rd optical lens group, adopted the plastic aspherical element lens; The spherical aberration that is used for common correcting optical system; Optimized the optical system imaging performance, and reduced the influence of ambient temperature variation Performance of Optical System; And, the 4th optical lens group set up the 5th optical lens group as side, be used for the curvature of field of correcting optical system, improved the crooked imaging surface of optical system, improved picture quality; Thereby realized that high-resolution, low cost, small size and the high optics of whole Zoom optic lens become the requirement of multiple proportions.
Description of drawings
Fig. 1 is the structural representation of the low-cost high-resolution optical zoom lens of the embodiment of the invention.
Fig. 2 is the low-cost high-resolution optical zoom lens wide-angle side MTF synoptic diagram of the embodiment of the invention.
Fig. 3 is the low-cost high-resolution optical zoom lens centre position MTF synoptic diagram of the embodiment of the invention.
Fig. 4 is that the low-cost high-resolution optical zoom lens of the embodiment of the invention is looked far into the distance end MTF synoptic diagram.
Embodiment
Below will combine accompanying drawing, specific embodiments of the invention and embodiment specify, and described specific embodiment in order to explain the present invention, is not to be used to limit embodiment of the present invention only.
A kind of zoom lens of high-resolution optical cheaply of the present invention; One of its embodiment; As shown in Figure 1; By being made up of five groups of optical lens group successively from thing side B: integral body has first optical lens group (L1 to L4) of positive refractive index and stationkeeping; Integral body has negative index and can realize that optics becomes second optical lens group (L5 to L8) doubly through on optical axis, moving; Integral body has the 3rd optical lens group (L9 to L12) of positive refractive index and stationkeeping, and integral body has positive refractive index and compensates in optical zoom or the 4th optical lens group (L13 to L14) that moved by imaging surface that different object distances causes through on optical axis, moving, and integral body has the 5th optical lens group L15 of negative index and stationkeeping.Between second optical lens group (L5 to L8) and the 3rd optical lens group (L9 to L12), diaphragm A and shutter are set.As side image sensor cover glass and filter plate equivalence glass EG is set in the 5th optical lens group (L15).
Concrete; In above-mentioned first optical lens group (L1 to L4); Fixed lens group before forming by four pieces of glass spherical optical lenses (L1, L2, L3, L4) altogether, B begins to be followed successively by from the thing side: the 1st lens L1 has negative refractive index, and the 2nd lens L2 has positive refractive index; The 3rd lens L3 has positive refractive index, and the 4th lens L4 has positive refractive index; Wherein thereby second of the 1st lens L1 first face with the 2nd lens L2 is bonded together and forms balsaming lens.
Concrete; In above-mentioned second optical lens group (L5 to L8); It is formed optics by three pieces of glass mirror (L5, L6, L7) and one piece of plastic optical lens L8 and becomes doubly group, and B begins to be followed successively by from the thing side: the 5th lens L5 is the glass spherical lens and has negative refractive index that the 6th lens L6 is the glass spherical lens and has negative refractive index; The 7th lens L7 is the glass spherical lens and has negative refractive index that the 8th lens L8 is plastic lens and has positive refractive index; Wherein, first face of second of the 6th lens L6 and the 7th lens L7 is combined into balsaming lens; At least comprise the one side aspheric surface in the two sides of the 8th lens L8, promptly first of the 8th lens L8 (front) and/or second (at the back) all can be aspheric surface, is used for the spherical aberration of correcting optical system.
Concrete; In above-mentioned the 3rd optical lens group (L9 to L12); It forms fixation group behind the optics by one piece of plastic optical lens L9 and three pieces of glass spherical lenses (L10, L11, L12), and B begins to be followed successively by from the thing side: the 9th lens L9 is plastic lens and has positive refractive index that the 10th lens L10 is the glass spherical lens and has positive refractive index; The 11st lens L11 is the glass spherical lens and has negative refractive index that the 12nd lens L12 is the glass spherical lens and has negative refractive index; Wherein, comprise the one side aspheric surface in the two sides of the 9th lens L9 at least, promptly first of the 9th lens L9 (front) and/or second (at the back) all can be aspheric surface, is used for the spherical aberration of correcting optical system.
Concrete; In above-mentioned the 4th optical lens group (L13 to L14); It forms the optical compensation group by two pieces of glass optical lenses (L13, L14), and B begins to be followed successively by from the thing side: the 13rd lens L13 is glass lens and has negative refractive index that the 14th lens L14 is glass lens and has positive refractive index.Be preferably, one piece of glass lens of thing side has negative refractive index, has positive refractive index as one piece of glass lens of side.
Concrete, among above-mentioned the 5th optical lens group L15, it forms curvature of field correction group by one piece of glass optical lens L15, and promptly the 15th lens L15 has negative refractive index, is used for the curvature of field of correcting optical system.
In the structure of above-mentioned Zoom optic lens, the plastic aspherical element (L8 and L9) in second optical lens group (L5 to L8) and the 3rd optical lens group (L9 to L12), purpose is to be used for a kind of aberration---spherical aberration in the correcting optical system.Spherical aberration is a most basic a kind of optical aberration, because the existence of spherical aberration makes optical system can not finely pool a luminous point to the light of differing heights, thereby causes the imaging performance of optical system sharply to descend.So spherical aberration is the aberration that must proofread and correct in the optical system for high resolution.
But; Because the linear expansion coefficient of plastic material is bigger; Its temperature characterisitic often will be lower than glass material, in order to increase the temperature characterisitic of optical system, reduces the influence of temperature variation to its optical property; So adopt two pieces of plastic aspherical element lens (L8 and L9) to share the purpose of spherical aberration corrector jointly, thereby reduce ambient temperature to the whole optical system Effect on Performance.
In addition, the 5th optical lens group L15 in the said structure, its major function is to be used for other a kind of aberration--the curvature of field in correcting optical system, i.e. the bending of image planes.Because present imageing sensor; Like CCD (Charge-coupled Device; Charge coupled cell) and CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor (CMOS)) etc., its optoelectronic induction face all is the plane; If optical system institute imaging surface has bending, can cause picture quality sharply to descend.So at present, the curvature of field also is must strict a kind of optical aberration of proofreading and correct in the optical system for high resolution.
Compare with high-resolution optical zoom lens of the prior art; Low-cost high-resolution optical zoom lens provided by the present invention; Owing in second optical lens group and the 3rd optical lens group, adopted the plastic aspherical element lens; The spherical aberration that is used for common correcting optical system has been optimized the optical system imaging performance, and has reduced the influence of ambient temperature variation to Performance of Optical System; And, the 4th optical lens group set up the 5th optical lens group as side, be used for the curvature of field of correcting optical system, improved the crooked imaging surface of optical system, improved picture quality; Thereby realized that high-resolution, low cost, small size and the high optics of whole Zoom optic lens become the requirement of multiple proportions.
In the preferred implementation of the low-cost high-resolution optical zoom lens of the present invention; Two sides, front and back with the 8th lens in second optical lens group (L5 to L8) is aspheric surface; And first of the 3rd the 9th lens L9 in the optical lens group (L9 to L12) describes for aspheric surface is an example in detail.Material such as the material of plastic aspherical element can PMMA (chemical name is a polymethylmethacrylate, and promptly organic glass is commonly called as acrylic), PC (Polycarbonate, polycarbonate), APEL5014.
As shown in Figure 1, be followed successively by first optical lens group (L1 to L4), second optical lens group (L5 to L8), diaphragm A, the 3rd optical lens group (L9 to L12), the 4th optical lens group (L13 to L14), the 5th optical lens group L15 and equivalent glass EG from thing side B.Specify: equivalent glass EG can be used to represent that the seal glass before CCD or the cmos sensor is dull and stereotyped, optical low-pass filter OLPF (optical low-pass filter) and day and night switch optical filter etc.
First optical lens group (L1 to L4) is made up of the 1st lens L1, the 2nd lens L2, the 3rd lens L3 and the 4th lens L4, and wherein second first two sides with the 2nd lens L2 by the 1st lens L1 is bonded into balsaming lens J1.The 1st lens L1 is a negative index, and the 2nd lens L2 is a positive refractive index, and the two is combined into the balsaming lens J1 of refractive index for bearing the 1st lens L1 and the 2nd lens L2, and the 3rd lens L3 is a positive refractive index, and the 4th lens L4 is a positive refractive index.First optical lens group (L1 to L4) all is made up of glass lens, and total refractive index is for negative, and it is with respect to the imaging surface stationkeeping.
Second optical lens group (L5 to L8) is made up of the 5th lens L5, the 6th lens L6, the 7th lens L7 and the 8th lens L8.The 5th lens L5, the 6th lens L6 and the 7th lens L7 are negative refractive index, and the 8th lens L8 is positive refractive index.Wherein, second of the 6th lens L6 can engage the composition balsaming lens with first of the 7th lens L7; The 8th lens are plastic lens, and two sides is aspheric surface before and after it.Second optical lens group (L5 to L8) can move along optical axis B, thereby realizes the variation of optical focal length, reaches optics and becomes purpose doubly.After second optical lens group 2, be the position of diaphragm A and shutter, the physical pore size size of diaphragm A can be regulated, thereby plays the purpose of regulating the logical optical efficiency of whole optical system.Shutter can be placed in position before or after tightly adjacent with diaphragm A, realizes the control to the time shutter through the control to shutter.Under the working in coordination of diaphragm A and shutter, the light-inletting quantity of control optical system.It after the position of diaphragm A and shutter the 3rd optical lens group (L9 to L12).
The 3rd optical lens group (L9 to L12) is made up of the 9th lens L9, the 10th lens L10, the 11st lens L11 and the 12nd lens L12.Wherein the 9th lens L9 is the plastic aspherical element lens, is positive refractive index, and its first is aspheric surface.All the other the 10th lens L10, the 11st lens L11, the 12nd lens L12 are the glass spherical lens, and wherein, the 10th lens L10 and the 11st lens L11 are positive refractive index, and the 12nd lens L12 is a negative index.The position of the 3rd optical lens group (L9 to L12) is with respect to the imaging surface stationkeeping.
The 4th optical lens group (L13 to L14) is made up of the 13rd lens L13 and the 14th lens L14, and the 13rd lens L13 and the 14th lens L14 are the glass spherical lens.The 4th optical lens group 4 can move front and back on optical axis B; The mobile of imaging surface that moves forward and backward in the optical zoom process because of second optical lens group 2 or when object distance changes, caused compensated, thereby reach the changeless all the time purpose in optical system imaging face position.
The 5th optical lens group (L15) is made up of the 15th lens L15, and the 15th lens L15 is the glass spherical lens of negative index.
The focal range of this camera lens is 3.75mm～103.4mm, is that the aperture of short focal length extremity is 1.6 in wide-angle side, is that the aperture of long focal length extremity is 3.2 looking far into the distance end.
Below be the concrete related data and the related symbol explanation of this specific embodiment:
R1, r2, r3 ... Ri representes the radius-of-curvature of lens surface shape, and the extra filling * of non-spherical surface explains, representes the radius-of-curvature of its benchmark sphere;
D1, d2, d3 ... Di representes thickness and the airspace of each lens on optical axis, and for variable airspace, table 2 also provides wide-angle side, centre position in the lump and looks far into the distance the focal length of end;
N1, n2, n3 ... Ni representes the refractive index (when d light) of lens material;
V1, v2, v3 ... Vi representes the Abbe constant (when d light) of lens material;
Numeral after the above letter is for to begin each surperficial sequence number from the thing side.
The aspheric surface parameter declaration:
The concrete shape of non-spherical surface is by following aspheric surface formulate,
x＝(h
2/r)/(1+(1-(K+1)h
2/r
2)
1/2)
+Ah
4+Bh
6+Ch
8+Dh
10+Eh
12
In the formula, x represents optical axis direction, and h representes the distance with respect to optical axis, and r representes the benchmark sphere curvature radius, and K is the secondry constants of curve form, and A, B, C, D are high-order term coefficient in the aspheric surface formula.The asphericity coefficient of each face provides in table 3,4 and 5 in the lump.
The basic specifications parameter of optical system: focal distance f: 3.75mm～103.4mm; Aperture Fno.:1.6～3.2;
Table 1 has provided the concrete numerical value of zoom lens in the above-mentioned specific embodiment:
| i | ri | di | ni | vi |
| 1 | 103.9 | 1.5 | 1.92 | 18.9 |
| 2 | 46.9 | 5.08 | 1.65 | 58.4 |
| 3 | 959.0 | 0.1 | ||
| 4 | 44.7 | 3.58 | 1.69 | 54.5 |
| 5 | 108.8 | 0.1 | ||
| 6 | 28.6 | 3.69 | 1.69 | 54.5 |
| 7 | 60.2 | Variable | ||
| 8 | 22.9 | 1 | 1.90 | 37.1 |
| 9 | 6.6 | 3.57 | ||
| 10 | -14.9 | 1 | 1.9 | 37.1 |
| 11 | 8.9 | 2.76 | 1.9 | 18.9 |
| 12 | -98.8 | 0.23 | ||
| 13* | 27 | 1.19 | 1.53 | 56 |
| 14* | 37 | Variable | ||
| 15 | Diaphragm | 0.8 |
| ?16* | 18.6 | 1.9 | 1.53 | 56 |
| ?17 | 72.4 | 0.1 | ||
| ?18 | 12.5 | 3.32 | 1.55 | 45.8 |
| ?19 | -37.3 | 0.1 | ||
| ?20 | 41.1 | 1.36 | 1.52 | 58.7 |
| ?21 | 63.8 | 0.41 | ||
| ?22 | 38.9 | 1 | 1.92 | 18.9 |
| ?23 | 10.2 | Variable | ||
| ?24 | 32.2 | 2.26 | 1.5 | 66.1 |
| ?25 | -22.3 | 0.1 | ||
| ?26 | 14.6 | 2.08 | 1.53 | 60.5 |
| ?27 | -111.3 | Variable | ||
| ?28 | -110.8 | 1 | 1.88 | 40.8 |
| ?29 | 29.4 | 3.42 | ||
| ?30 | ∞ | 1.4 | 1.52 | 64.1 |
| ?31 | ∞ |
Table 1
Variable interval and focal length thereof are seen table 2:
| f | d7 | d14 | d23 | d27 |
| 4.75 | 0.85 | 27.3 | 5.04 | 4.77 |
| 52 | 23.72 | 4.42 | 2.9 | 6.92 |
| 103.4 | 26.53 | 1.63 | 8.82 | 1 |
Table 2
The 13rd aspheric surface parameter seen table 3:
| K | 0 |
| A | -0.00040316869 |
| B | -7.2385485e-006 |
| C | -9.6312755e-007 |
| D | 1.742611e-008 |
Table 3
The 14th aspheric surface parameter seen table 4:
| K | 0 |
| A | -0.00036727207 |
| B | -1.187213e-005 |
| C | -5.1304014e-007 |
| D | 1.2713572e-008 |
Table 4
The 16th aspheric surface parameter seen table 5:
| K | 0 |
| A | -0.00011742423 |
| B | -1.396541e-006 |
| C | 2.4532875e-008 |
| D | -2.7118576e-010 |
Table 5
Fig. 2,3 and 4 is respectively present embodiment in wide-angle side, centre position and MTF (the Modulation Transfer Function that looks far into the distance end; Optical transfer function) curve map; Horizontal ordinate representation space frequency, unit be line to millimeter, meaning is a bright dark pace of change in the unit space; Ordinate is represented contrast, and T represents tangential direction, and S represents radial direction.
Can find out that from these MTF curve maps present embodiment can obtain the good optical performance, reach high-resolution requirement; F-number up to 1.6 can be provided, and optics becomes multiple proportions also can reach 22 times and above low-cost high-resolution optical zoom lens.As for MTF, ball song, the curvature of field, thing side, as side, non-spherical lens, diaphragm, optical axis, refractive index etc. is well known to those of ordinary skill in the art, repeats no more at this.
Should be understood that; The above is merely preferred embodiment of the present invention, is not sufficient to limit technical scheme of the present invention, concerning those of ordinary skills; Within spirit of the present invention and principle; Can increase and decrease according to above-mentioned explanation, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of accompanying claims of the present invention.
Claims (9)
1. a high-resolution optical zoom lens cheaply comprises first optical lens group, second optical lens group, the 3rd optical lens group and the 4th optical lens group that begin to set gradually from the thing side, wherein:
First optical lens group is set to preceding fixed lens group, has positive refractive index and stationkeeping;
Second optical lens group is set to optics and becomes doubly group, has negative refractive index, can move along optical axis;
The 3rd optical lens group is set to fixation group behind the optics, has positive refractive index and stationkeeping;
The 4th optical lens group is set to the optical compensation group, has positive refractive index, can move along optical axis;
It is characterized in that:
Comprise one piece of aspherical plastic lens in second optical lens group; Also comprise one piece of aspherical plastic lens in the 3rd optical lens group; The spherical aberration that all is used for correcting optical system, and the 3rd optical lens group is made up of one piece of plastic aspherical element lens and three pieces of glass lenss of beginning from the thing side; Wherein, the plastic aspherical element lens have positive refractive index, and the first piece of glass lens that begins from the thing side has positive refractive index, and second piece of glass lens and the 3rd piece of glass lens all have negative refractive index;
The 4th optical lens group curvature of field correction group is set as the 5th optical lens group as side, be used for the curvature of field of correcting optical system.
2. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: for the plastic aspherical element lens in second optical lens group, have at least one side to be set to aspheric surface in its two sides.
3. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: for the plastic aspherical element lens in the 3rd optical lens group, have at least one side to be set to aspheric surface in its two sides.
4. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: the 5th optical lens group is set to one piece of glass lens, has negative refractive index.
5. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: the 4th optical lens group is made up of two pieces of glass lenss; Wherein, one piece of glass lens of thing side has negative refractive index, has positive refractive index as one piece of glass lens of side.
6. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: first optical lens group is made up of four pieces of glass lenss; Wherein, the first piece of glass lens that begins from the thing side has negative refractive index, and second piece of glass lens has positive refractive index, and the 3rd piece of glass lens has positive refractive index, and the 4th piece of glass lens has positive refractive index; First piece of glass lens and second piece of bonding formation balsaming lens of glass lens are used for correcting chromatic aberration.
7. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: second optical lens group is made up of three pieces of glass lenss and one piece of plastic aspherical element lens of beginning from the thing side; Wherein, three pieces of glass lenss all have negative refractive index, and the plastic aspherical element lens have positive refractive index, the 3rd piece of glass lens and second piece of bonding formation balsaming lens of glass lens.
8. the zoom lens of high-resolution optical cheaply according to claim 1 is characterized in that: between second optical lens group and the 3rd optical lens group, diaphragm and shutter are set.
9. according to arbitrary described zoom lens of high-resolution optical cheaply in the claim 1 to 8, it is characterized in that: as side image sensor cover glass and filter plate equivalence glass is set in the 5th optical lens group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100093337A CN102253473B (en) | 2011-01-17 | 2011-01-17 | Low-cost and high-resolution optical zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100093337A CN102253473B (en) | 2011-01-17 | 2011-01-17 | Low-cost and high-resolution optical zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102253473A CN102253473A (en) | 2011-11-23 |
| CN102253473B true CN102253473B (en) | 2012-07-18 |
Family
ID=44980829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100093337A Expired - Fee Related CN102253473B (en) | 2011-01-17 | 2011-01-17 | Low-cost and high-resolution optical zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102253473B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879890B (en) * | 2012-07-06 | 2014-11-05 | 苏州大学 | Varifocal optical system with long focus and large relative aperture |
| JP6076764B2 (en) * | 2013-02-05 | 2017-02-08 | 株式会社タムロン | Zoom lens |
| JP6274749B2 (en) * | 2013-05-14 | 2018-02-07 | キヤノン株式会社 | Zoom lens and imaging apparatus having the same |
| CN106019542B (en) * | 2016-06-27 | 2018-08-03 | 中国科学院西安光学精密机械研究所 | Broadband multipurpose continuous zooming optical system |
| CN110376715B (en) * | 2019-07-18 | 2024-03-26 | 广东奥普特科技股份有限公司 | High-resolution prime lens |
| CN111726488B (en) * | 2020-05-29 | 2022-07-08 | 深圳市伯森光电科技有限公司 | Optical system |
| CN118567081B (en) * | 2024-05-23 | 2026-01-13 | 中国科学院西安光学精密机械研究所 | High-performance long-focal-length stepped zoom lens |
| CN118584638B (en) * | 2024-06-04 | 2025-10-28 | 广东技术师范大学 | Macro photography optical system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007108343A (en) * | 2005-10-12 | 2007-04-26 | Sony Corp | Zoom lens and imaging device |
| CN101276045A (en) * | 2007-03-28 | 2008-10-01 | 富士能株式会社 | Variable-power optical system and imaging device |
| CN201266271Y (en) * | 2008-05-16 | 2009-07-01 | 广东保千里电子技术有限公司 | Miniaturization multi-time optical zooming lens |
| CN201344993Y (en) * | 2008-12-16 | 2009-11-11 | 浙江舜宇光学有限公司 | CCTV camera lens |
-
2011
- 2011-01-17 CN CN2011100093337A patent/CN102253473B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007108343A (en) * | 2005-10-12 | 2007-04-26 | Sony Corp | Zoom lens and imaging device |
| CN101276045A (en) * | 2007-03-28 | 2008-10-01 | 富士能株式会社 | Variable-power optical system and imaging device |
| CN201266271Y (en) * | 2008-05-16 | 2009-07-01 | 广东保千里电子技术有限公司 | Miniaturization multi-time optical zooming lens |
| CN201344993Y (en) * | 2008-12-16 | 2009-11-11 | 浙江舜宇光学有限公司 | CCTV camera lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102253473A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162905B (en) | Zoom lens system, optical device and the method for the manufacture of Zoom lens system | |
| CN203773137U (en) | Imaging lens and imaging device comprising the same | |
| CN203773129U (en) | Imaging lens and imaging device comprising the same | |
| CN102253473A (en) | Low-cost and high-resolution optical zoom lens | |
| CN203606554U (en) | Imaging lens and imaging device provided with imaging lens | |
| CN106842500B (en) | High-definition fisheye lens | |
| CN201327547Y (en) | Camera lens and camera head | |
| CN102253476B (en) | Variable magnification optical system and imaging apparatus | |
| CN103403602B (en) | Variable magnification optical system and imaging device | |
| CN102253474A (en) | Low-cost miniaturized multiple optical zoom lens | |
| CN201965294U (en) | Zoom lens and imaging device | |
| CN101750724B (en) | Zoom lens and optical apparatus including zoom lens | |
| CN104101992B (en) | Zoom lens and the image pick-up device including these zoom lens | |
| CN101750721B (en) | Zoom lens and image pickup apparatus including the same | |
| CN102540431B (en) | Zoom lens system and camera including the same | |
| CN103605200B (en) | A kind of optical lens | |
| CN104423019A (en) | Lens module | |
| CN104360462B (en) | Wide-angle lens | |
| CN103250083A (en) | Zoom lens and imaging device | |
| CN108303786A (en) | Camera lens module | |
| CN104765129A (en) | Lens module | |
| CN102236157B (en) | The manufacture method of zoom lens, optical device and zoom lens | |
| CN103454758B (en) | Zoom lens and be equipped with the image pick up equipment of zoom lens | |
| CN104155743A (en) | Zoom lens and image pickup apparatus including the same | |
| CN101887164A (en) | Small-sized dual-band optical lens with large zooming ratio |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160531 Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang Street Community Lang Kou Fu Hua Chang Lu Industrial Park ninth building (1-3) layer Patentee after: Shenzhen TOYANI Special Equipment Technology Co.,Ltd. Address before: 518109 Guangdong city of Shenzhen province Baoan District Longhua Dalang Street Huarong Ludetai Technology Industrial Park 1 Patentee before: SHENZHEN PROTRULY ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210427 Address after: 21 / F, building B, Xingzhi science and Technology Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province, 210000 Patentee after: Protruly Vision Technology Group Co.,Ltd. Address before: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang Street Community Lang Kou Fu Hua Chang Lu Industrial Park ninth building (1-3) layer Patentee before: Shenzhen TOYANI Special Equipment Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20220117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |