CN201266271Y - Miniaturization multi-time optical zooming lens - Google Patents

Miniaturization multi-time optical zooming lens Download PDF

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Publication number
CN201266271Y
CN201266271Y CNU2008200478460U CN200820047846U CN201266271Y CN 201266271 Y CN201266271 Y CN 201266271Y CN U2008200478460 U CNU2008200478460 U CN U2008200478460U CN 200820047846 U CN200820047846 U CN 200820047846U CN 201266271 Y CN201266271 Y CN 201266271Y
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China
Prior art keywords
lens
group
optical
standard
utility
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Expired - Lifetime
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CNU2008200478460U
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Chinese (zh)
Inventor
庄敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Trinidad security protection Co., Ltd.
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GUANGDONG TOYANI ELECTRONICS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
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Priority to CNU2008200478460U priority Critical patent/CN201266271Y/en
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Abstract

The utility model relates to an optical zoom lens, in particular to a miniaturization multiple optical zoom lens which comprises four optical lens groups, wherein the first group is the front fixed lens group, the second group is the optical zoom group, the third group is the optical rear fixed group and the fourth group is the optical compensation group. The optical zoom lens is characterized in that in the four optical lens groups, only one plastic aspheric lens is applied in the third lens group, other lens groups do not adopt the aspheric lens. Compared with the prior art, the utility model has the advantages of lower cost and higher miniaturization degree.

Description

A kind of many Zoom Lens of miniaturization camera lens
Technical field
The utility model relates to Zoom optic lens, particularly relates to a kind of many Zoom Lens of miniaturization camera lens.
Background technology
With disclosed high power Zoom optic lens before this, as disclosed a kind of high power Zoom optic lens among the ZL 01802415.7, also be made up of four set of shots: first group is the preceding fixedly group of positive light coke, second group is that the change of negative power is doubly organized, the 3rd group is the back fixedly group of positive refraction, the compensation group of the 4th group of positive light coke.In the 3rd group and the 4th group respectively with before glass aspheric lenses change the plastic aspherical element lens into, thereby reach the purpose that reduces cost.But adopted two pieces of aspherical plastic lenses simultaneously, cost is still higher.Because the physical characteristics of plastic aspherical element lens is relatively poor, adopt the plastic lens non-spherical lens too many, can cause the decline of product reliability.Also have in the compensation group, be made up of two pieces of lens, weight is bigger, is unfavorable for the motion control to the compensation group.
The utility model content
In order to overcome above the deficiencies in the prior art, the utility model provides the high power Zoom optic lens of a kind of low cost, miniaturization.Can provide to surpass 20 times optical zoom ratio, the bigger aperture of F1.6 can be provided, and have height reliability.
For achieving the above object, the utility model comprises four groups of optical lens group, first group is preceding fixed lens group, second group is that optics becomes doubly group, the 3rd group is fixing group behind the optics, the 4th group is the optical compensation group, it is characterized in that: in four groups of optical lens group, only use one piece of plastic aspherical element lens and be in the 3rd group of lens.All do not adopt non-spherical lens in all the other lens combination.
Comparing superior part of the present utility model with prior art is: cost is lower, and degree of miniaturization is higher.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described
Fig. 1 is the structural representation of the zoom lens wide-angle side of the utility model embodiment.
Fig. 2 is the aberration synoptic diagram of the zoom lens wide-angle side of the utility model embodiment.
Fig. 3 is the MTF synoptic diagram of the zoom lens wide-angle side of the utility model embodiment.
Fig. 4 is the aberration synoptic diagram in the zoom lens centre position of the utility model embodiment.
Fig. 5 is the MTF synoptic diagram in the zoom lens centre position of the utility model embodiment.
Fig. 6 for the zoom lens of the utility model embodiment look far into the distance end the aberration synoptic diagram.
Fig. 7 looks far into the distance the MTF synoptic diagram of end for the zoom lens of the utility model embodiment.
Embodiment
As shown in Figure 1, the zoom lens of present embodiment from left to right is followed successively by the first lens combination G1, the second lens combination G2, diaphragm S, the 3rd lens combination G3, the 4th lens combination G4, image sensor cover glass and filter plate equivalence glass C, imaging surface I.The first lens combination G1 is made up of lens L1 and L2, and it is that L1 is a balsaming lens, and the focal length of this lens combination is 35.19mm.The second lens combination G2 is made up of lens L3 and L4, and wherein L4 is a balsaming lens, and the focal length of this lens combination is-6.12mm that this group can be moved front and back on optical axis, realizes zoom function.Diaphragm S fixes (lens barrel is not done sign) by lens barrel.The 3rd lens combination G3 is made up of plastic aspherical element lens L5 and glass spherical lens L6, and wherein two sides, the L5 left and right sides is aspheric surface, and the focal length of L5 is-136.18mm that the combined focal length of L5 and L6 is 22.63mm.The 4th lens combination G4 is made up of lens L7, and L7 is a balsaming lens, and its focal length is 20.05mm, compensates the variation of image distance in zoom or focus process by it moving forward and backward on the optical axis, thereby makes image planes remain on same position.The focal range of this camera lens is 3.9mm ~ 85.8mm, is that the aperture of short focal length extremity is 1.7 in wide-angle side, is that the aperture of long focal length extremity is 3.7 at end.
Below be the related data of this camera lens:
Surf?Type Radius Thickness Glass Diameter
OBJ?STANDARD Infinity Infinity
1 STANDARD 51.9045 1.489145 1.85，23.8 26.12809
2 STANDARD 24.48551 4.816484 1.57，57.5 24.36613
3 STANDARD -248.4623 0.1916147 23.74202
4 STANDARD 22.23328 3.211728 1.75，52.3 22.11449
5 STANDARD 56.33866 23.77825 21.38461
6 STANDARD 21.77827 1.207124 1.79，47.5 11.21085
7 STANDARD 4.593325 2.775381 7.721227
8 STANDARD -14.90316 2.604618 1.61，37 7.642768
9 STANDARD 5.421298 2.683843 1.72，26.6 7.469575
10 STANDARD 63.60654 0.9953288 7.404628
STO?STANDARD Infinity 0.892055 4.56
12 EVENASPH 15.66567 1.493288 1.54，56.04 9.358662
13 EVENASPH 12.49473 0.2945273 9.435464
14 STANDARD 21.02705 2.287147 1.62，60.3 9.44364
15 STANDARD -25.36323 12.1981 9.514323
16 STANDARD 25.23578 1.290905 1.74，28.3 9.042158
17 STANDARD 6.487291 3.465753 1.68，55.5 8.777583
18 STANDARD -21.22823 4.990706 8.751216
19 STANDARD Infinity 0.75 1.52，64.2 4.942342
20 STANDARD Infinity 1.19 8
IMA STANDARD Infinity 4.527958
Wherein face 12 and 13 is plastic aspherical element lens L5, and aspheric shape expression formula is
x＝(h 2/r)/(1+(1-(K+1)h 2/r 2) 1/2)
+Ah 4+Bh 6+Ch 8+Dh 10+Eh 12
X represents optical axis direction in the formula, and the h representative is with respect to the distance of optical axis, and r represents the radius-of-curvature of benchmark sphere.Aspheric surface parameter K, A, B, C, D, E are as follows
The 12nd
K 0
A -8.8159853e-005
B -1.154398e-005
C 9.4739011e-008
D 0
E 0
The 13rd aspheric surface parameter is
K 0
A -2.7545593e-005
B -1.152454e-005
C 1.0709099e-007
D 0
E 0
Fig. 2 to Fig. 7 is from wide-angle side to the aberration curve of looking far into the distance end and the MTF curve.As can be seen, no matter this embodiment is wide-angle side, centre position or looks far into the distance end and all obtain the good optical performance from above synoptic diagram.
Above embodiment only is the explanation of the technology of the present invention content.The material of plastic aspherical element can be used PMMA (organic glass), PC (polycarbonate), APEL5014 etc., but does not limit to above several.

Claims (1)

1. a Zoom optic lens comprises four groups of optical lens group, and first group is preceding fixed lens group, and second group is that optics becomes doubly group, and the 3rd group is fixing group behind the optics; The 4th group is the optical compensation group, it is characterized in that: in four groups of optical lens group, only adopt one piece of aspherical plastic lens in the 3rd group of lens, all do not adopt non-spherical lens in all the other lens combination.
CNU2008200478460U 2008-05-16 2008-05-16 Miniaturization multi-time optical zooming lens Expired - Lifetime CN201266271Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200478460U CN201266271Y (en) 2008-05-16 2008-05-16 Miniaturization multi-time optical zooming lens

Publications (1)

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CN201266271Y true CN201266271Y (en) 2009-07-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639569B (en) * 2009-08-21 2011-04-13 苏州大学 Big relative aperture long-focus image space telecentric zoom lens
CN102253473A (en) * 2011-01-17 2011-11-23 深圳市保千里电子有限公司 Low-cost and high-resolution optical zoom lens
CN102253474A (en) * 2011-01-17 2011-11-23 深圳市保千里电子有限公司 Low-cost miniaturized multiple optical zoom lens
CN112649951A (en) * 2020-12-23 2021-04-13 福建福光股份有限公司 Low-distortion wide-angle zoom lens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639569B (en) * 2009-08-21 2011-04-13 苏州大学 Big relative aperture long-focus image space telecentric zoom lens
CN102253473A (en) * 2011-01-17 2011-11-23 深圳市保千里电子有限公司 Low-cost and high-resolution optical zoom lens
CN102253474A (en) * 2011-01-17 2011-11-23 深圳市保千里电子有限公司 Low-cost miniaturized multiple optical zoom lens
CN102253473B (en) * 2011-01-17 2012-07-18 深圳市保千里电子有限公司 Low-cost and high-resolution optical zoom lens
CN112649951A (en) * 2020-12-23 2021-04-13 福建福光股份有限公司 Low-distortion wide-angle zoom lens

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Owner name: SHENZHEN BAOQIANLI ELECTRONICS CO., LTD.

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Address after: Baoan District Dalang street, Shenzhen city 518000 Guangdong Huarong Ludetai science and Technology Industrial Park, building 1, No. 1

Patentee after: Electronics Co., Ltd. Shenzhen Bao miles

Address before: 510630, hi tech building, No. 908 Tianhe North Road, Guangdong, Guangzhou 1906

Patentee before: Guangdong TOYANI Electronics Co. Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Miniaturization multi-time optical zooming lens

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Granted publication date: 20090701

Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Electronics Co., Ltd. Shenzhen Bao miles

Registration number: 2011990000297

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Date of cancellation: 20120717

Granted publication date: 20090701

Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Electronics Co., Ltd. Shenzhen Bao miles

Registration number: 2011990000297

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Denomination of utility model: Miniaturization multi-time optical zooming lens

Effective date of registration: 20120907

Granted publication date: 20090701

Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Electronics Co., Ltd. Shenzhen Bao miles

Registration number: 2012990000505

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Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd.

Pledgor: Electronics Co., Ltd. Shenzhen Bao miles

Registration number: 2012990000505

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ASS Succession or assignment of patent right

Owner name: SHENZHEN BAOQIANLI SECURITY AND PROTECTION CO., LT

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Address after: 518109 Guangdong province Shenzhen city Longhua District Office sea wave mouth community Hua Chang Lu Fu Industrial Park eighth building a layer of

Patentee after: Shenzhen Trinidad security protection Co., Ltd.

Address before: Baoan District Dalang street, Shenzhen city 518000 Guangdong Huarong Ludetai science and Technology Industrial Park, building 1, No. 1

Patentee before: Electronics Co., Ltd. Shenzhen Bao miles

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