CN115291357B - A small-volume wide-angle day-night dual-use optical system and a camera module using the same - Google Patents
A small-volume wide-angle day-night dual-use optical system and a camera module using the same Download PDFInfo
- Publication number
- CN115291357B CN115291357B CN202210814148.3A CN202210814148A CN115291357B CN 115291357 B CN115291357 B CN 115291357B CN 202210814148 A CN202210814148 A CN 202210814148A CN 115291357 B CN115291357 B CN 115291357B
- Authority
- CN
- China
- Prior art keywords
- lens
- optical system
- plane side
- day
- night
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
本申请提供一种小体积广角日夜两用型光学系统及其应用的摄像模组，光学系统主要由7枚透镜构成，镜片枚数合理，结构简单，体积小，重量轻，成本低，像素高，通过不同透镜的相互组合及其合理分配光焦度，在追求小型化的同时能够保证充足的视野范围，且白天和夜晚不虚焦，尤其适用于智能门铃或智能家居系统中。
The present application provides a small-volume, wide-angle, day-and-night optical system and a camera module used therein. The optical system is mainly composed of 7 lenses, with a reasonable number of lenses, a simple structure, a small volume, a light weight, a low cost, and a high pixel count. Through the mutual combination of different lenses and the reasonable distribution of optical focal length, a sufficient field of view can be ensured while pursuing miniaturization, and there is no out-of-focus during the day or at night. The system is particularly suitable for smart doorbells or smart home systems.
Description
Technical Field
The application relates to an optical system and a camera module applied to the optical system, in particular to a small-volume wide-angle day-night dual-purpose optical system for an intelligent doorbell or an intelligent home system and a camera module applied to the optical system.
Background
At present, the photographic module is widely applied to intelligent home systems such as visual doorbell products, and the traditional photographic module or optical system has the defects of complex structure, large volume, small visual angle, low pixels and poor day and night effects, so that the use of users is difficult to meet.
Disclosure of Invention
In order to solve the problems of complex structure and large volume of the existing photographic module or optical system, the application provides a small-volume wide-angle day-night dual-purpose optical system.
The day and night dual-purpose optical system with the small volume and the wide angle sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object plane to an image plane along an optical axis;
the object plane side of the first lens is a convex surface, the image plane side is a concave surface, and the focal power of the first lens is negative;
the object plane side of the second lens is a convex surface, the image plane side is a concave surface, and the focal power of the second lens is negative;
the object plane side of the third lens is a convex surface, the image plane side is a convex surface, and the focal power of the third lens is positive;
the object plane side of the fourth lens is a convex surface, the image plane side is a convex surface, and the focal power of the fourth lens is positive;
The object plane side of the fifth lens is a concave surface, the image plane side is a concave surface, and the focal power of the fifth lens is negative;
the object plane side of the sixth lens is a convex surface, the image plane side is a concave surface, and the focal power of the sixth lens is positive;
the object plane side of the seventh lens is a convex surface, the image plane side is a convex surface, and the focal power of the seventh lens is positive.
Preferably, the optical system satisfies the following condition:
-5.84< f1/f < -5.54, and/or
-2.64< F2/f < -2.41, and/or
3.98< F3/f <4.22, and/or
2.68< F4/f <2.92, and/or
-2.31< F56/f < -2.09; and/or
2.29<f7/f<2.51;
Wherein f is the focal length of the whole optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f56 is the combined focal length of the fifth lens and the sixth lens, and f7 is the focal length of the seventh lens.
Preferably, the refractive index Nd1 of the material of the first lens, the Abbe constant Vd1 of the material satisfies Nd1>1.68, vd1<55, and/or
The refractive index Nd2 of the material of the second lens, the Abbe constant Vd2 of the material of the second lens satisfies Nd2<1.55, vd2>54, and/or
The refractive index Nd3 of the material of the third lens, the Abbe constant Vd3 of the material of the third lens is higher than Nd3 and lower than 1.65, vd3<21, and/or
The material refractive index Nd4, the material Abbe constant Vd4 of the fourth lens satisfy Nd4<1.51, vd4>80, and/or
The refractive index Nd5 of the material of the fifth lens, the Abbe constant Vd5 of the material satisfies that Nd5>1.65, vd5<21, and/or
The refractive index Nd6 of the material of the sixth lens, the Abbe constant Vd6 of the material of the sixth lens satisfies Nd6<1.55, vd6>54, and/or
The refractive index Nd7 and Abbe constant Vd7 of the seventh lens satisfy Nd7<1.55 and Vd7>54.
Preferably, the fifth lens and the sixth lens are cemented with each other to form a combined lens.
Preferably, the diaphragm is disposed between the third lens and the fourth lens.
Preferably, the second lens, the third lens, the fifth lens, the sixth lens and the seventh lens are plastic aspherical lenses.
Preferably, the horizontal viewing angle is 140 DEG to 160 DEG HFOV.
On the other hand, the embodiment of the application also provides a camera module.
An image pickup module at least comprises an optical lens, wherein the optical lens is internally provided with the small-volume wide-angle day-night dual-purpose optical system.
Compared with the prior art, the application has the following beneficial effects:
The application provides a small-volume wide-angle day-night dual-purpose optical system which mainly comprises 7 lenses, is reasonable in lens number, simple in structure, small in size, light in weight, low in cost and high in pixel, can ensure sufficient visual field range while pursuing miniaturization through the mutual combination of different lenses and reasonable distribution of optical power, and is not in deficiency focus in the daytime and at night, so that the application is particularly suitable for intelligent doorbell or intelligent home systems.
The application provides a camera module, an optical system mainly comprises 7 lenses, the number of the lenses is reasonable, the structure is simple, through the mutual combination of different lenses and the reasonable distribution of focal power, the camera module can ensure sufficient visual field range while pursuing miniaturization, and in addition, the camera module is not in virtual focus at daytime and at night, and is particularly suitable for intelligent doorbell or intelligent home systems.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of an optical system or camera module according to the present application;
FIG. 2 is a graph of the MTF of a lens of an optical system or camera module of the present application;
FIG. 3 is a graph of the lens infrared light MTF of an optical system or camera module of the present application;
Fig. 4 is a graph of lens distortion of an optical system or camera module of the present application.
Detailed Description
As shown in fig. 1, the present application provides a small-volume wide-angle day-night dual-purpose optical system, which is composed of a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6 and a seventh lens 7 in order from an object plane to an image plane along an optical axis.
The object plane side of the first lens 1 is a convex surface, the image plane side is a concave surface, and the focal power of the first lens is negative;
the object plane side of the second lens 2 is a convex surface, the image plane side is a concave surface, and the focal power of the second lens is negative;
The object plane side of the third lens 3 is a convex surface, the image plane side is a convex surface, and the focal power of the third lens is positive;
the object plane side of the fourth lens 4 is a convex surface, the image plane side is a convex surface, and the focal power of the fourth lens is positive;
The object plane side of the fifth lens 5 is a concave surface, the image plane side is a concave surface, and the focal power of the fifth lens is negative;
the object plane side of the sixth lens 6 is a convex surface, the image plane side is a concave surface, and the focal power thereof is positive;
the seventh lens 7 has a convex object plane side, a convex image plane side, and positive optical power.
The application provides a small-volume wide-angle day-night dual-purpose optical system which mainly comprises 7 lenses, is reasonable in lens number, simple in structure, small in size, light in weight, low in cost and high in pixel, can ensure sufficient visual field range while pursuing miniaturization through the mutual combination of different lenses and reasonable distribution of optical power, and is not in deficiency focus in the daytime and at night, so that the application is particularly suitable for intelligent doorbell or intelligent home systems.
Preferably, the optical system satisfies the following condition:
-5.84< f1/f < -5.54, and/or
-2.64< F2/f < -2.41, and/or
3.98< F3/f <4.22, and/or
2.68< F4/f <2.92, and/or
-2.31< F56/f < -2.09; and/or
2.29<f7/f<2.51;
Wherein f is the focal length of the whole optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f56 is the combined focal length of the fifth lens and the sixth lens, and f7 is the focal length of the seventh lens.
Preferably, the refractive index Nd1 and the Abbe constant Vd1 of the material of the first lens meet Nd1>1.68 and Vd1<55, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd2 and the Abbe constant Vd2 of the material of the second lens meet Nd2<1.55 and Vd2>54, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd3 and the Abbe constant Vd3 of the material of the third lens are as high as Nd3>1.65, vd3<21, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd4 and the Abbe constant Vd4 of the material of the fourth lens meet Nd4<1.51 and Vd4>80, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd5 and the Abbe constant Vd5 of the material of the fifth lens are as high as Nd5>1.65, vd5<21, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd6 and Abbe constant Vd6 of the material of the sixth lens meet Nd6<1.55 and Vd6>54, and the structure is simple, so that good optical performance can be ensured.
The refractive index Nd7 and Abbe constant Vd7 of the seventh lens satisfy Nd7<1.55 and Vd7>54. The structure is simple, and good optical performance can be ensured.
Preferably, the fifth lens 5 and the sixth lens 6 are glued to each other to form a combined lens, which is simple and compact in structure and small in size.
Preferably, a diaphragm 9 is provided between the third lens 3 and the fourth lens 4, near the fourth lens 4 side, for adjusting the intensity of the light beam.
Preferably, the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 are plastic aspherical lenses, and the first lens 1 and the fourth lens 4 are glass lenses. The glass-plastic mixed optical configuration is adopted, the plastic aspheric surface position is reasonably selected, the aberration is balanced, and the glass-plastic mixed configuration is adopted to design the ultra-short TTL and the large visual angle while ensuring excellent temperature characteristics, so that the glass-plastic mixed optical configuration is particularly suitable for intelligent doorbell or intelligent home system.
Preferably, the horizontal viewing angle is 140 DEG or more and 160 DEG or less, and a sufficient viewing range can be ensured.
Preferably, the optical total length TTL satisfies TTL=12.50-15.03 mm. The ultra-large visual angle is realized while the excellent temperature characteristic is ensured, the sufficient visual field range is ensured, and the virtual focus is avoided in the daytime and at night.
Specifically, as a preferred embodiment of the present invention, but not limited to, in the present example, the focal length f=1.22 mm, the field angle hfov=150°, the total optical length ttl=13.58 mm, the focal length f1= -6.92mm of the first lens 1, the focal length f2= -3.09mm of the second lens 2, the focal length f3=5.00 mm of the third lens 3, the focal length f4=3.41 mm of the fourth lens 4, the focal length f5= -2.27mm of the fifth lens 5, the focal length f6=9.42 mm of the sixth lens 6, and the focal length f7=2.93 mm of the seventh lens 7, and the basic parameters of the present optical system can be shown in table 1 below:
TABLE 1 basic parameters of optical systems
| Surface of the body | Radius of curvature R (mm) | Interval D (mm) | Refractive index Nd | Dispersion Vd |
| S1 | 12.00 | 0.70 | 1.69 | 54.54 |
| S2 | 3.35 | 1.00 | ||
| S3 | 22.50 | 0.45 | 1.54 | 55.71 |
| S4 | 1.53 | 2.00 | ||
| S5 | 40.87 | 2.50 | 1.66 | 20.37 |
| S6 | -3.54 | 0.45 | ||
| STO | INFINITY | 0.01 | ||
| S8 | 6.60 | 1.40 | 1.50 | 81.61 |
| S9 | -2.13 | 0.05 | ||
| S10 | -3.70 | 0.30 | 1.66 | 20.37 |
| S11 | 2.65 | 1.25 | 1.54 | 55.71 |
| S12 | 4.65 | 0.10 | ||
| S13 | 2.01 | 0.85 | 1.54 | 55.71 |
| S14 | -6.12 | 0.13 | ||
| S15 | INFINITY | 0.61 | 1.52 | 58.57 |
| S16 | INFINITY | 1.78 | ||
| IMA | INFINITY | 0.00 |
In table 1 above, S1 and S2 correspond to the two surfaces of the first lens 1 from the object plane to the image plane 8 along the optical axis, S3 and S4 correspond to the two surfaces of the second lens 2, S5 and S6 correspond to the two surfaces of the third lens 3, STO is the position of the diaphragm 9, S8 and S9 correspond to the two surfaces of the fourth lens 4, S10 and S11 correspond to the two surfaces of the fifth lens 5, S11 and S12 correspond to the two surfaces of the sixth lens 6, wherein the fifth lens 5 and the sixth lens 6 are cemented lenses, S13 and S14 correspond to the two surfaces of the seventh lens 7, S15 and S16 correspond to the two surfaces of the filter 10 between the seventh lens 7 and the image plane 8, and IMA is the image plane 8.
Further, the surfaces of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 are all aspherical shapes, which satisfy the following equations:
Wherein, the parameter c=1/R is the curvature corresponding to the radius, y is the radial coordinate, the unit is the same as the lens length unit, k is conic coefficient, and a 1 to a 8 are coefficients corresponding to the radial coordinates respectively. The aspherical correlation values of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 can be as shown in table 2 below:
TABLE 2 aspherical correlation values of lens surfaces
As another preferred embodiment of the present invention, but not limited to, in the present example, the optical total length TTL of the optical system is=15.03 mm, the focal length f1= -7.66mm of the first lens 1, the focal length f2= -3.38mm of the second lens 2, the focal length f3=5.50 mm of the third lens 3, the focal length f4=3.76 mm of the fourth lens 4, the focal length f5= -2.49mm of the fifth lens 5, the focal length f6=10.29 mm of the sixth lens 6, the focal length f7=3.22 mm of the seventh lens 7, and the basic parameters of the present optical system can be as shown in table 3 below:
TABLE 3 basic parameters of optical systems
| Surface of the body | Radius of curvature R (mm) | Interval D (mm) | Refractive index Nd | Dispersion Vd |
| S1 | 13.18 | 0.77 | 1.69 | 54.54 |
| S2 | 3.70 | 1.21 | ||
| S3 | 24.68 | 0.48 | 1.54 | 55.71 |
| S4 | 1.68 | 2.20 | ||
| S5 | 44.90 | 2.75 | 1.66 | 20.37 |
| S6 | -3.89 | 0.49 | ||
| STO | INFINITY | 0.01 | ||
| S8 | 7.31 | 1.54 | 1.50 | 81.61 |
| S9 | -2.34 | 0.05 | ||
| S10 | -4.05 | 0.33 | 1.66 | 20.37 |
| S11 | 2.90 | 1.37 | 1.54 | 55.71 |
| S12 | 5.10 | 0.12 | ||
| S13 | 2.21 | 0.93 | 1.54 | 55.71 |
| S14 | -6.72 | 0.16 | ||
| S15 | INFINITY | 0.61 | 1.52 | 58.57 |
| S16 | INFINITY | 2.00 | ||
| IMA | INFINITY | 0.00 |
In table 3 above, S1 and S2 correspond to the two surfaces of the first lens 1, S3 and S4 correspond to the two surfaces of the second lens 2, S5 and S6 correspond to the two surfaces of the third lens 3, STO is the position of the diaphragm 9, S8 and S9 correspond to the two surfaces of the fourth lens 4, S10 and S11 correspond to the two surfaces of the fifth lens 5, S11 and S12 correspond to the two surfaces of the sixth lens 6, wherein the fifth lens 5 and the sixth lens 6 are cemented lenses, S13 and S14 correspond to the two surfaces of the seventh lens 7, S15 and S16 correspond to the two surfaces of the filter 10 between the seventh lens 7 and the image surface 8, and IMA is the image surface 8.
Further, the surfaces of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 are all aspherical shapes, which satisfy the following equations:
wherein, the parameter c=1/R is the curvature corresponding to the radius, y is the radial coordinate, the unit is the same as the lens length unit, k is conic coefficient, and a 1 to a 8 are coefficients corresponding to the radial coordinates respectively. The aspherical correlation values of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 can be as shown in table 4 below:
TABLE 4 aspherical correlation values of lens surfaces
As another preferred embodiment of the present invention, but not limited to, in the present example, the optical total length TTL of the optical system is=12.52 mm, the focal length f1= -6.36mm of the first lens 1, the focal length f2= -2.82mm of the second lens 2, the focal length f3=4.57 mm of the third lens 3, the focal length f4=3.12 mm of the fourth lens 4, the focal length f5= -2.07mm of the fifth lens 5, the focal length f6=8.57 mm of the sixth lens 6, the focal length f7=2.67 mm of the seventh lens 7, and various basic parameters of the optical system can be as shown in table 5 below:
TABLE 5 basic parameters of optical systems
| Surface of the body | Radius of curvature R (mm) | Interval D (mm) | Refractive index Nd | Dispersion Vd |
| S1 | 10.96 | 0.64 | 1.69 | 54.54 |
| S2 | 3.07 | 1.00 | ||
| S3 | 20.53 | 0.40 | 1.54 | 55.71 |
| S4 | 1.40 | 1.83 | ||
| S5 | 37.34 | 2.28 | 1.66 | 20.37 |
| S6 | -3.24 | 0.41 | ||
| STO | INFINITY | 0.01 | ||
| S8 | 6.08 | 1.28 | 1.50 | 81.61 |
| S9 | -1.95 | 0.05 | ||
| S10 | -3.37 | 0.27 | 1.66 | 20.37 |
| S11 | 2.42 | 1.14 | 1.54 | 55.71 |
| S12 | 4.24 | 0.10 | ||
| S13 | 1.84 | 0.77 | 1.54 | 55.71 |
| S14 | -5.59 | 0.14 | ||
| S15 | INFINITY | 0.61 | 1.52 | 58.57 |
| S16 | INFINITY | 1.60 | ||
| IMA | INFINITY | 0.00 |
In table 5 above, S1 and S2 correspond to the two surfaces of the first lens 1, S3 and S4 correspond to the two surfaces of the second lens 2, S5 and S6 correspond to the two surfaces of the third lens 3, STO is the position of the diaphragm 9, S8 and S9 correspond to the two surfaces of the fourth lens 4, S10 and S11 correspond to the two surfaces of the fifth lens 5, S11 and S12 correspond to the two surfaces of the sixth lens 6, wherein the fifth lens 5 and the sixth lens 6 are cemented lenses, S13 and S14 correspond to the two surfaces of the seventh lens 7, S15 and S16 correspond to the two surfaces of the filter 10 between the seventh lens 7 and the image surface 8, and IMA is the image surface 8.
Further, the surfaces of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 are all aspherical shapes, which satisfy the following equations:
Wherein, the parameter c=1/R is the curvature corresponding to the radius, y is the radial coordinate, the unit is the same as the lens length unit, k is conic coefficient, and a 1 to a 8 are coefficients corresponding to the radial coordinates respectively. The aspherical correlation values of the second lens 2, the third lens 3, the fifth lens 5, the sixth lens 6 and the seventh lens 7 can be as shown in table 6 below:
TABLE 6 aspherical correlation values for lens surfaces
As can be seen from fig. 2 to fig. 4, the optical system of the present embodiment has good day-night confocal effect, wide visible range, and other effects, and realizes ultra-short TTL and large viewing angle while guaranteeing excellent temperature characteristics, and ensures sufficient field of view, and no foolproof during the day and night.
The imaging module at least comprises an optical lens, wherein the small-volume wide-angle day-night dual-purpose optical system is arranged in the optical lens, the optical system sequentially comprises a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, a fifth lens 5, a sixth lens 6 and a seventh lens 7 along an optical axis from an object plane to an image plane, the first lens is a meniscus negative focal lens, the second lens is a meniscus negative focal lens, the third lens is a biconvex positive focal lens, the fourth lens is a biconvex positive focal lens, the fifth lens is a biconcave negative focal lens, the sixth lens is a meniscus positive focal lens, and the seventh lens is a biconvex positive focal lens.
The application provides a camera module, an optical system mainly comprises 7 lenses, the number of the lenses is reasonable, the structure is simple, through the mutual combination of different lenses and the reasonable distribution of focal power, the camera module can ensure sufficient visual field range while pursuing miniaturization, and in addition, the camera module is not in virtual focus at daytime and at night, and is particularly suitable for intelligent doorbell or intelligent home systems.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The utility model provides a dual-purpose optical system of little volume wide angle day night, constitutes its characterized in that by first lens, second lens, third lens, fourth lens, fifth lens, sixth lens and seventh lens in proper order from object plane to image plane along the optical axis:
the object plane side of the first lens is a convex surface, the image plane side is a concave surface, and the focal power of the first lens is negative;
the object plane side of the second lens is a convex surface, the image plane side is a concave surface, and the focal power of the second lens is negative;
the object plane side of the third lens is a convex surface, the image plane side is a convex surface, and the focal power of the third lens is positive;
the object plane side of the fourth lens is a convex surface, the image plane side is a convex surface, and the focal power of the fourth lens is positive;
The object plane side of the fifth lens is a concave surface, the image plane side is a concave surface, and the focal power of the fifth lens is negative;
the object plane side of the sixth lens is a convex surface, the image plane side is a concave surface, and the focal power of the sixth lens is positive;
The object plane side of the seventh lens is a convex surface, the image plane side is a convex surface, and the focal power is positive, and the optical system meets the following conditions:
-5.84<f1/f<-5.54;
-2.64<f2/f<-2.41;
3.98<f3/f<4.22;
2.68<f4/f<2.92;
-2.31<f56/f<-2.09;
2.29<f7/f<2.51;
Wherein f is the focal length of the whole optical system, f1 is the focal length of the first lens, f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f56 is the combined focal length of the fifth lens and the sixth lens, and f7 is the focal length of the seventh lens.
2. The small-volume wide-angle dual-purpose optical system for day and night of claim 1, wherein the refractive index Nd1 of the material and the Abbe constant Vd1 of the first lens are as follows, nd1=1.69 and Vd1=54.54;
The refractive index Nd2 of the material of the second lens and the abbe constant Vd2 of the material satisfy nd2=1.54 and vd2= 55.71.
3. The small-volume wide-angle day and night dual-purpose optical system as set forth in claim 1, wherein the material refractive index Nd3 and the material Abbe constant Vd3 of the third lens are such that Nd3 = 1.66 and Vd3 = 20.37;
the fourth lens has a material refractive index Nd4 and a material abbe constant Vd4 such that nd4=1.50 and vd4=81.61.
4. The small-volume wide-angle dual-purpose optical system for day and night according to claim 1, wherein the refractive index Nd5 of the material and the Abbe constant Vd5 of the fifth lens are equal to or higher than Nd5=1.66 and Vd5= 20.37;
the refractive index Nd6 of the material and Abbe constant Vd6 of the sixth lens are satisfied that Nd6 = 1.54 and Vd6 = 55.71;
The seventh lens has a material refractive index Nd7 and a material abbe constant Vd7 such that nd7=1.54 and vd7= 55.71.
5. The day and night dual-purpose optical system with a small volume and wide angle as set forth in claim 1, wherein the fifth lens and the sixth lens are cemented together to form a combined lens.
6. The day and night dual-purpose optical system with a small volume and wide angle as set forth in claim 1, wherein the diaphragm is disposed between the third lens and the fourth lens.
7. The day and night dual-purpose optical system with a small volume and wide angle as set forth in claim 1, wherein the second lens element, the third lens element, the fifth lens element, the sixth lens element and the seventh lens element are aspheric plastic lenses.
8. The small-volume, wide-angle, day and night optical system of claim 1, wherein the horizontal viewing angle is 140 DEG.ltoreq.HFOV.ltoreq.160°.
9. An image pickup module at least comprising an optical lens, wherein the optical lens is internally provided with the small-volume wide-angle day-night dual-purpose optical system as set forth in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814148.3A CN115291357B (en) | 2022-07-12 | 2022-07-12 | A small-volume wide-angle day-night dual-use optical system and a camera module using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210814148.3A CN115291357B (en) | 2022-07-12 | 2022-07-12 | A small-volume wide-angle day-night dual-use optical system and a camera module using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115291357A CN115291357A (en) | 2022-11-04 |
| CN115291357B true CN115291357B (en) | 2025-05-13 |
Family
ID=83822528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210814148.3A Active CN115291357B (en) | 2022-07-12 | 2022-07-12 | A small-volume wide-angle day-night dual-use optical system and a camera module using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115291357B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9442277B1 (en) * | 2015-05-12 | 2016-09-13 | AO Ether Optronics (Shenzhen) Limited | Wide-angle lens |
| CN107664810A (en) * | 2016-07-28 | 2018-02-06 | 大立光电股份有限公司 | Optical image capturing lens assembly, image capturing device and electronic device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761743B (en) * | 2016-07-13 | 2020-10-02 | 浙江舜宇光学有限公司 | Seven-piece wide-angle lens |
| CN110456475B (en) * | 2018-05-08 | 2024-11-29 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| JP6865445B2 (en) * | 2019-04-08 | 2021-04-28 | カンタツ株式会社 | Imaging lens |
| CN111025593B (en) * | 2019-12-30 | 2021-11-26 | 深圳市特莱斯光学有限公司 | Large-aperture high-definition optical lens |
| KR102471468B1 (en) * | 2020-06-04 | 2022-11-28 | 삼성전기주식회사 | Optical imaging system |
| CN111708158B (en) * | 2020-08-20 | 2020-11-17 | 江西联创电子有限公司 | Wide-angle lens and imaging apparatus |
| CN112629669B (en) * | 2020-12-24 | 2021-12-31 | 西安中科立德红外科技有限公司 | Optical athermal infrared lens with two wave bands, common caliber and large target surface and optical system |
| CN112630938B (en) * | 2020-12-29 | 2022-03-04 | 江西联创电子有限公司 | Day and night dual-purpose imaging lens |
| CN112817129B (en) * | 2021-02-22 | 2025-07-08 | 江西欧菲光学有限公司 | Optical imaging lens, camera module, electronic equipment and car |
| CN112882204A (en) * | 2021-03-30 | 2021-06-01 | 天津欧菲光电有限公司 | Optical system, camera module, camera equipment and automobile |
| CN114200644B (en) * | 2021-11-29 | 2024-04-12 | 福建福光天瞳光学有限公司 | Vehicle-mounted optical lens |
-
2022
- 2022-07-12 CN CN202210814148.3A patent/CN115291357B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9442277B1 (en) * | 2015-05-12 | 2016-09-13 | AO Ether Optronics (Shenzhen) Limited | Wide-angle lens |
| CN107664810A (en) * | 2016-07-28 | 2018-02-06 | 大立光电股份有限公司 | Optical image capturing lens assembly, image capturing device and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115291357A (en) | 2022-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108873270B (en) | Glass-plastic mixed prime lens | |
| CN113985589B (en) | Zoom lens and optical system | |
| CN109188654B (en) | Wide-angle lens | |
| CN108319004B (en) | High-pixel ultra-wide angle optical system and camera module applying same | |
| CN111580253A (en) | Day and night dual-purpose monitoring lens and monitoring device | |
| CN111856728A (en) | A wide-angle non-distortion lens and imaging equipment including the lens | |
| CN209400781U (en) | High-pixel wide-angle day-night confocal optical system and its applied camera module | |
| CN214669836U (en) | A high-resolution glass-plastic hybrid fisheye lens | |
| CN214225558U (en) | Fixed focus lens | |
| CN111045197A (en) | High-definition wide-angle day and night confocal optical system and its application camera module | |
| CN111308648A (en) | Vehicle front-view optical system and its application camera module | |
| CN211402913U (en) | An ultra-small zoom lens | |
| CN114063257B (en) | A wide-angle and large aperture adiabatic fixed-focus security lens | |
| CN116880040A (en) | Infrared confocal optical lens and imaging device | |
| CN111856727A (en) | A large-aperture ultra-wide-angle high-definition lens and imaging equipment including the lens | |
| CN218122346U (en) | Small-size wide-angle day and night dual-purpose optical system and camera module applying same | |
| CN216748259U (en) | Fixed focal length lens | |
| CN114609762B (en) | Small-volume large-wide-angle optical system and camera module applying same | |
| CN111880286B (en) | Large aperture ultra-large wide angle monitoring camera module | |
| CN111679414B (en) | Super-wide-angle athermal day and night lens and working method thereof | |
| CN115291357B (en) | A small-volume wide-angle day-night dual-use optical system and a camera module using the same | |
| CN114035302B (en) | Small-volume ultra-wide angle day and night dual-purpose optical system | |
| CN217112862U (en) | Small-size large-wide-angle optical system and camera module applying same | |
| CN114035303B (en) | Small-volume ultra-wide angle day and night dual-purpose camera module | |
| CN218003835U (en) | Lens system, infrared receiving module and depth camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |