CN104849836B - A kind of intelligent monitoring image pickup optical system and its camera lens of application - Google Patents
A kind of intelligent monitoring image pickup optical system and its camera lens of application Download PDFInfo
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- CN104849836B CN104849836B CN201510309295.5A CN201510309295A CN104849836B CN 104849836 B CN104849836 B CN 104849836B CN 201510309295 A CN201510309295 A CN 201510309295A CN 104849836 B CN104849836 B CN 104849836B
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- lens
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- intelligent monitoring
- image pickup
- monitoring image
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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
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Abstract
The embodiment of the invention discloses a kind of intelligent monitoring image pickup optical system, at least includes from object plane to image planes successively along optical axis：First lens, the second lens, the 3rd lens and the 4th lens, the 3rd lens and the 4th lens mutually bond to form balsaming lens；The relative aperture of this optical system is f/2.0, and optical system meets following condition：(1)‑0.65<f/f1<‑0.45；(2)0.25<f/f2<0.75；(3)0.2<f/f34<0.4.On the other hand, the embodiment of the present invention additionally provides a kind of camera lens.The embodiment of the present invention, the relative aperture of optical system or camera lens is brought up to f/2.0, while with good tolerance tolerance so as to which production yield is up to 98%, reduces product rework cost；Meanwhile, the optical condition that this optical system or camera lens meet so as to the premium properties with the full interface is clear image for providing more than mega pixel.
Description
Technical field：
The present invention relates to the camera lens of a kind of optical system and its application, especially one kind are applied to smart home and network is supervised
The intelligent monitoring image pickup optical system of control (such as IPCamera camera etc.) and camera lens.
Background technology：
Existing intelligent monitoring image pickup optical system and camera lens suitable for smart home and network monitoring, there is optics in which
The system or camera lens aperture problem relatively low, more relatively costly than little, production yield.
Content of the invention：
For overcoming the optical system or camera lens aperture problem relatively low, more relatively costly than little, production yield in prior art, this
On the one hand inventive embodiments provide a kind of intelligent monitoring image pickup optical system.
A kind of intelligent monitoring image pickup optical system, includes from object plane to image planes successively along optical axis：First lens, second saturating
Mirror, the 3rd lens and the 4th lens, the 3rd lens and the 4th lens mutually bond to form balsaming lens；This optical system
Stop index FNo. of system is 2.0, and optical system meets following condition：
(1)-0.65<f/f1<-0.45；
(2)0.25<f/f2<0.75；
(3)0.2<f/f34<0.4；
Wherein, f is the effective focal length of whole optical system, and f1 is the focal length of the first lens, and f2 is the focal length of the second lens,
F34 is that the 3rd lens and the 4th lens mutually bond the combined focal length to form balsaming lens；
The object plane side of second lens is convex surface, and image planes side is concave surface, with positive focal power, its focal length f2, material
Refractive index Nd2, material Abbe constant Vd2 meet：3.97mm<f2<9.26mm, Nd2 ＞ 1.85, Vd2 ＜ 42.
On the other hand, the embodiment of the present invention additionally provides a kind of camera lens.
A kind of camera lens, is provided with intelligent monitoring image pickup optical system described above in camera lens.
The embodiment of the present invention, the relative aperture of optical system or camera lens is brought up to f/2.0, while tolerant with good tolerance
Degree so as to which production yield is up to 98%, reduces product rework cost；Meanwhile, the optical condition that this optical system or camera lens meet,
Make it have the premium properties of the full interface is clear image that more than mega pixel is provided.
Description of the drawings：
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the optical system of the present invention or the structural representation of camera lens；
Fig. 2 is the optical system of the present invention or the curvature of field and the distortion curve figure of camera lens；
The MTF figure of optical system or camera lens of the Fig. 3 for the present invention；
Fig. 4 is the optical system of the present invention or the relative illumination figure of camera lens.
Specific embodiment：
In order that technical problem solved by the invention, technical scheme and beneficial effect become more apparent, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
As shown in figure 1, a kind of intelligent monitoring image pickup optical system, 8 at least include successively from object plane to image planes along optical axis：The
One lens 1, the second lens 2, the 3rd lens 3 and the 4th lens 4, the 3rd lens 3 and the 4th lens 4 mutually bond shape
Become balsaming lens；Stop index FNo. of this optical system is 2.0, and optical system meets following condition：
(1)-0.65<f/f1<-0.45；
(2)0.25<f/f2<0.75；
(3)0.2<f/f34<0.4；
Wherein, f is the effective focal length of whole optical system, and f1 is the focal length of the first lens 1, and f2 is Jiao of the second lens 2
Away from f34 is that the 3rd lens 3 and the 4th lens 4 mutually bond the combined focal length for forming balsaming lens.
Further, first lens 1 are meniscus lens, and its object plane side is convex surface, and image planes side is concave surface, with negative
Focal power, made using heavy-lanthanide flint glass.
Yet further, second lens 2 are meniscus lens, and its object plane side is convex surface, and image planes side is concave surface, has
Positive focal power, its focal length f2, Refractive Index of Material Nd2, material Abbe constant Vd2 meet：3.97mm<f2<9.26mm, Nd2 ＞
1.85, Vd2 ＜ 42.
Further, the 3rd lens 3 are biconvex lens, with positive focal power, using heavy-lanthanide flint glass system
Become.
Further, the object plane side of the 4th lens 4 is concave surface, and image planes side is dimpling face or plane, with negative
Focal power, is made using dense flint glass.
Yet further, the 3rd lens 3 and the 4th lens 4 mutually bond the balsaming lens of formation, focal power for just,
Its combined focal length f34 meets：8.21mm<f34<12.43mm.
Further, the diaphragm 5 of optical system is Wei Yu the second lens 2 and the 3rd lens 3 between, and near the 3rd lens
3 sides.
Further, the 4th lens 4 are to being also sequentially provided with optical filter 6 and protective glass 8 between image planes 8.
Specifically, in the present embodiment, effective focal length f of this optical system is 2.64mm, and stop index FNo. is 2.0,
2 ω=111 ° of the angle of visual field.Every basic parameter of this optical system is as shown in the table：
| Surface | Radius of curvature R (mm) | Interval D (mm) | Refractive index Nd | Dispersion values Vd |
| S1 | 84.83 | 0.6500 | 1.8061 | 40.94 |
| S2 | 4.02 | 9.8700 | ||
| S3 | 7.05 | 1.74000 | 1.8830 | 40.81 |
| S4 | 56.3 | 2.100 | ||
| S5 | Infinitely great | 0.5800 | ||
| STO | Infinitely great | 0.2000 | ||
| S7 | 5.6700 | 2.400 | 1.8061 | 40.94 |
| S8 | -2.4500 | 1.42000 | 1.9228 | 20.88 |
| S9 | Infinitely great | 0.300 | ||
| S10 | Infinitely great | 0.300 | 1.5168 | 64.20 |
| S11 | Infinitely great | 0.400 | ||
| S12 | Infinitely great | 0.450 | 1.5168 | 64.20 |
| S13 | Infinitely great | 2.593 |
In upper table, along optical axis 8 from object plane to image planes, S1, S2 correspond to two surfaces of the first lens 1；S3, S4 are corresponded to
Two surfaces of the second lens 2；Two positions that S5, STO are located for diaphragm；S7, S8 correspond to two tables of the 3rd lens 3
Face；S8, S9 correspond to two surfaces of the 4th lens 4；S10, S11 correspond to two surfaces of optical filter 6；S12, S13 are corresponded to
Two surfaces for protective glass 7.
As can be seen that this optical system has good optical property in from Fig. 2 to Fig. 4, with large aperture, high-resolution
Rate, the day and night premium properties such as confocal.
A kind of camera lens, is provided with intelligent monitoring image pickup optical system described above in camera lens.
One or more embodiment provided with reference to particular content is provided, does not assert the concrete reality of the present invention
Apply and be confined to these explanations.All approximate with the method for the present invention, structure etc., identical, or for present inventive concept under the premise of
Some technology deduction or replace are made, should all be considered as protection scope of the present invention.
Claims (9)
1. a kind of intelligent monitoring image pickup optical system, includes from object plane to image planes successively along optical axis：First lens, the second lens,
3rd lens and the 4th lens, it is characterised in that totally four, the lens with focal power, the 3rd lens and the 4th saturating
Mirror mutually bonds to form balsaming lens；Stop index FNo. of this optical system is 2.0, and optical system meets following condition：
(1)-0.65<f/f1<-0.45；
(2)0.25<f/f2<0.75；
(3)0.2<f/f34<0.4；
Wherein, f is the effective focal length of whole optical system, and f1 is the focal length of the first lens, and f2 is the focal length of the second lens, f34
It is that the 3rd lens and the 4th lens mutually bond the combined focal length to form balsaming lens；
The object plane side of second lens is convex surface, and image planes side is concave surface, with positive focal power, its focal length f2, material refraction
Rate Nd2, material Abbe constant Vd2 meet：3.97mm<f2<9.26mm, Nd2 ＞ 1.85, Vd2 ＜ 42.
2. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the object plane side of first lens
For convex surface, image planes side is concave surface, with negative focal power.
3. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the 3rd lens are lenticular
Mirror, with positive focal power.
4. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the object plane side of the 4th lens
For concave surface, image planes side is dimpling face or plane, with negative focal power.
5. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the 3rd lens and the 4th saturating
Mirror mutually bonds the balsaming lens of formation, and focal power is for just, its combined focal length f34 meets：8.21mm<f34<12.43mm.
6. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the diaphragm of optical system is located at the
Between two lens and the 3rd lens, and near the 3rd lens side.
7. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that the 4th lens to image planes it
Between be also sequentially provided with optical filter and protective glass.
8. intelligent monitoring image pickup optical system according to claim 1, it is characterised in that first lens, second saturating
Mirror, the 3rd lens and the 4th lens are glass lens.
9. a kind of camera lens, it is characterised in that the intelligent monitoring camera optical being provided with camera lens described in any one of claim 1-8
System.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309295.5A CN104849836B (en) | 2015-06-06 | 2015-06-06 | A kind of intelligent monitoring image pickup optical system and its camera lens of application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309295.5A CN104849836B (en) | 2015-06-06 | 2015-06-06 | A kind of intelligent monitoring image pickup optical system and its camera lens of application |
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| Publication Number | Publication Date |
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| CN104849836A CN104849836A (en) | 2015-08-19 |
| CN104849836B true CN104849836B (en) | 2017-03-08 |
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| CN114967056B (en) * | 2022-06-01 | 2024-01-12 | 福建福光天瞳光学有限公司 | High-definition camera lens and imaging method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725920Y (en) * | 2004-06-26 | 2005-09-14 | 谢莉 | Short focus big view field camera lens |
| CN2862067Y (en) * | 2005-09-08 | 2007-01-24 | 南阳市卧龙光学有限公司 | Imagery orthostigmat |
| US7548385B2 (en) * | 2006-11-06 | 2009-06-16 | Hoya Corporation | Wide-angle lens system |
| JP2013018316A (en) * | 2011-07-07 | 2013-01-31 | Tokai Rika Co Ltd | Webbing take-up device |
| CN204731473U (en) * | 2015-06-06 | 2015-10-28 | 中山市弘景光电科技有限公司 | The camera lens of a kind of intelligent monitoring image pickup optical system and application thereof |
-
2015
- 2015-06-06 CN CN201510309295.5A patent/CN104849836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725920Y (en) * | 2004-06-26 | 2005-09-14 | 谢莉 | Short focus big view field camera lens |
| CN2862067Y (en) * | 2005-09-08 | 2007-01-24 | 南阳市卧龙光学有限公司 | Imagery orthostigmat |
| US7548385B2 (en) * | 2006-11-06 | 2009-06-16 | Hoya Corporation | Wide-angle lens system |
| JP2013018316A (en) * | 2011-07-07 | 2013-01-31 | Tokai Rika Co Ltd | Webbing take-up device |
| CN204731473U (en) * | 2015-06-06 | 2015-10-28 | 中山市弘景光电科技有限公司 | The camera lens of a kind of intelligent monitoring image pickup optical system and application thereof |
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| CN104849836A (en) | 2015-08-19 |
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Address after: Twentieth, No. 18, No. fifth, Pioneer Road, Torch Development Zone, Zhongshan City, Guangdong Province, Zhongshan 528400 Applicant after: GUANGDONG HONGJING OPTOELECTRONIC TECHNOLOGY Inc. Address before: 528400 Zhongshan Province, the Torch Development Zone, Guangdong venture Road, No. twentieth, building fifth, floor 18 Applicant before: ZHONGSHAN HONGJING OPTICAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20180509 Address after: No. 333, Hu Sha Road, Hu Chang town, Xiantao, Hubei Province Patentee after: HONGJING OPTOELECTRONICS (XIANTAO) TECHNOLOGY Co.,Ltd. Address before: 528400 fifth building, Twentieth building fifth, Chuang Road, Zhongshan Torch Development Zone, Zhongshan, Guangdong, China. Patentee before: GUANGDONG HONGJING OPTOELECTRONIC TECHNOLOGY Inc. |
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Address after: No. 29, Xianhong Road, Duhu Sub District Office, Xiantao City, Hubei Province, 433000 Patentee after: HONGJING OPTOELECTRONICS (XIANTAO) TECHNOLOGY Co.,Ltd. Address before: No. 333, Hu Sha Road, Hu Chang town, Xiantao, Hubei Province Patentee before: HONGJING OPTOELECTRONICS (XIANTAO) TECHNOLOGY Co.,Ltd. |