CN207148401U - Five-piece wide-angle lens - Google Patents
Five-piece wide-angle lens Download PDFInfo
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- CN207148401U CN207148401U CN201720892271.1U CN201720892271U CN207148401U CN 207148401 U CN207148401 U CN 207148401U CN 201720892271 U CN201720892271 U CN 201720892271U CN 207148401 U CN207148401 U CN 207148401U
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Abstract
A five-lens wide-angle lens includes, in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has negative refractive power, and the object side surface of the first lens is a convex surface and the image side surface of the first lens is a concave surface. The second lens, the third lens and the fifth lens all have positive refractive power, and the object side surface and the image side surface of the second lens, the third lens and the fifth lens are convex surfaces. The fourth lens has negative refractive power, and the object side surface and the image side surface of the fourth lens are both concave surfaces. The five-piece wide-angle lens further satisfies the following relation: 0< (T6+ T8+ T10)/F < 0.25. Therefore, the lens has the effect of being similar to a cemented lens to effectively correct aberration and achieve the effect of improving resolution quality, and the five-piece wide-angle lens has the characteristics of wide angle, low distortion, high photosensitive efficiency, high imaging quality and the like.
Description
Technical field
This creation is on a kind of optical system, especially with regard to a kind of five chip imaging lens with wide-angle characteristic.
Background technology
Monitoring camera is widely used in house and workplace, and to record any event that the environment is occurred.
Monitoring camera need to generally possess wide-angle characteristic, and the monitoring camera for how making to have wide-angle characteristic while have low distortion, Gao Cheng concurrently
As the advantages of quality, then it is worth this area personage to consider.
The content of the invention
The main purpose of this creation, which is to provide, a kind of has the characteristics that wide-angle, low distortion, five chips of high image quality
Imaging lens.
In order to reach above-mentioned and other purpose, this creation provides a kind of five chip wide-angle lens, its by thing side to image side according to
Sequence includes one first eyeglass, one second eyeglass, one the 3rd eyeglass, one the 4th eyeglass and one the 5th eyeglass.First eyeglass has negative
Refractive power, its thing side is convex surface and image side surface is concave surface.Second, third and the 5th eyeglass are respectively provided with positive refractive power, and three
Thing side and image side surface be convex surface.4th eyeglass has negative refractive power, and its thing side and image side surface are concave surface.Five chips
Wide-angle lens also meets following relationship：0<(T6+T8+T10)/F<0.25.It is thereby set to produce the effect of approximate cemented doublet,
Effectively to correct aberration, reach lifting solution as the effect of quality, and five chip wide-angle lens can have wide-angle, low distortion, high sense concurrently
The features such as light efficiency, high imaging quality.Preferably, five chip wide-angle lens can more meet following relationship：0.1<(T6+T8+
T10)/F<0.2。
In order to reach above-mentioned and other purpose, this creation also provides a kind of five chip wide-angle lens, and it is by thing side to image side
Sequentially include one first eyeglass, one second eyeglass, one the 3rd eyeglass, one the 4th eyeglass and one the 5th eyeglass.First eyeglass has
Negative refractive power, the radius of curvature of its thing side are on the occasion of and the radius of curvature of its thing side is more than the radius of curvature of its image side surface.
Second eyeglass has positive refractive power, and the radius of curvature of its thing side is on the occasion of and the radius of curvature of its thing side is more than its image side
The radius of curvature in face.3rd eyeglass has positive refractive power, and the radius of curvature of its image side surface is negative value, and the curvature of its thing side is partly
Footpath is more than the radius of curvature of its image side surface.4th eyeglass has negative refractive power, and the radius of curvature of its image side surface is on the occasion of and its thing
The radius of curvature of side is less than the radius of curvature of its image side surface.5th eyeglass has positive refractive power, the radius of curvature of its image side surface
For negative value, and the radius of curvature of its thing side is more than the radius of curvature of its image side surface.Five chip wide-angle lens also meet following pass
It is formula：0<(T6+T8+T10)/F<0.25.It is produced the effect of approximate cemented doublet, effectively to correct aberration, reach
Solution is lifted as the effect of quality, and five chip wide-angle lens can have wide-angle, low distortion, high light receiving efficiency, high imaging quality etc. concurrently
Feature.Preferably, five chip wide-angle lens can more meet following relationship：0.1<(T6+T8+T10)/F<0.2.
It in foregoing five chips wide-angle lens, more may include that an aperture is located between second, third eyeglass, thereby balance five
The configuration of wide-angle camera lens refractive power.
Foregoing five chips wide-angle lens can more meet following relationship：
0 ＞ R1/R10≤- 15；Wherein R1 is the radius of curvature of the first eyeglass thing side, and R10 is the 5th eyeglass image side
The radius of curvature in face.Thereby, even if at big visual angle, also can control its light incident angle, make five chip wide-angle lens it
Photosensory assembly has higher light receiving efficiency.
Foregoing five chips wide-angle lens can more meet following relationship：
30≧(T5+T7+T9)/(T6+T8+T10)≧10；Wherein T5 is thickness of the 3rd eyeglass on an optical axis, T7
For thickness of the 4th eyeglass on the optical axis, T9 is thickness of the 5th eyeglass on the optical axis, and T6 is the three, the 4th mirrors
Axial spacing of the piece on the optical axis, T8 are axial spacing of the four, the 5th eyeglasses on the optical axis, and T10 is the 5th mirror
Axial spacing of the piece image side surface with the component positioned at rear side on the optical axis.Thereby, light by during each eyeglass can have compared with
Small turnover, so as to reduce manufacture susceptibility.Herein, described " component for being located at rear side " refers to be located at the 5th eyeglass image side
Component between face and image side, such as the flat lenses such as optical filter or protective glass；If the 5th eyeglass image side surface is between image side
Without other eyeglasses, then refer to the photosensory assembly positioned at image side " positioned at the component of rear side ".Preferably, five chip wide-angle lens are more
Following relationship can be met：
20≧(T5+T7+T9)/(T6+T8+T10)≧10。
Foregoing five chips wide-angle lens can more meet following relationship：1<(T1+T3)/F<2.5；Wherein T1 is that the eyeglass exists
Thickness on the optical axis, T3 are the thickness of second eyeglass on the optical axis, and F is the system focal length of the five chips wide-angle lens
Value, thereby in the case of big visual angle, can still realize the purpose of miniaturization.
Foregoing five chips wide-angle lens can more meet following relationship：1.5<(T2+T4)/F<2.5；Wherein T2 for this
First, axial spacing of second eyeglass on the optical axis, T4 are axial spacing of second, third eyeglass on the optical axis, thereby,
System sensitivity can effectively be reduced.
Foregoing five chips wide-angle lens can more meet following relationship：2.2<(T5+T7+T9)/F<5.Thereby, it is ensured that eyeglass
Manufacture susceptibility.If (T5+T7+T9)/F exceedes the foregoing upper limit, production cost may be caused to increase, if otherwise less than under foregoing
Limit, then improve easily shaping difficulty.Preferably, five chip wide-angle lens more meet following relationship：2.2<(T5+T7+T9)/
F<3。
Foregoing five chips wide-angle lens can more meet following relationship：
8≧∣(R5/R6)+(R8/R7)+(R9/R10)∣≧7；Wherein R5 is the radius of curvature of the 3rd eyeglass thing side,
R6 is the radius of curvature of the 3rd eyeglass image side surface, and R7 is the radius of curvature of the 4th eyeglass thing side, and R8 is the 4th eyeglass
The radius of curvature of image side surface, R9 are the radius of curvature of the 5th eyeglass thing side.Thereby, via the three, the four, the 5th eyeglasses
Radius of curvature is arranged in pairs or groups, can effective update the system aberration, to reach preferable image quality.
Foregoing five chips wide-angle lens can more meet following relationship：0.83<(T1+T3)/(T2+T4)<1.5.Thereby, drop
The system sensitivity of low wide-angle lens.
In foregoing five chips wide-angle lens, the first to the 5th eyeglass can be glass lens and it is two-sided be aspherical, and
Non- cemented doublet.Thereby contribute to reduce cost.
Foregoing five chips wide-angle lens can more meet following relationship：2.8<R1/F<15、0.6<R2/F<0.8、4.2<R3/
F<5.4、-4.3<R4/F<-3.7、2.1<R5/F<2.7、-1<R6/F<-0.9、-1.3<R7/F<-1、2.2<R8/F<2.9、2.7<
R9/F<3.1、-1.3<R10/F<-1.1、-0.7<F/F1<-0.6、0.2<F/F2<0.3、0.7<F/F3<0.8、-1<F/F4<-
0.7、0.5<F/F5<0.6、7.3<TTL/F<7.7、2.5<ALT/Gaa<2.6；Wherein R2 is the curvature of the first eyeglass image side surface
Radius, R3 be the second eyeglass thing side radius of curvature, R4 be the second eyeglass image side surface radius of curvature, F1 for this first
The focal length value of eyeglass, F2 are the focal length value of second eyeglass, and F3 is the focal length value of the 3rd eyeglass, and F4 is Jiao of the 4th eyeglass
Away from value, F5 is the focal length value of the 5th eyeglass, and ALT is the thickness summation of first to the 5th eyeglass on the optical axis, and Gaa is should
Gap length summation of first to the 5th eyeglass on the optical axis, TTL are the system length of the five chips wide-angle lens.Thereby make
The five chips wide-angle lens has the characteristics such as wide-angle, low distortion, high light receiving efficiency, high imaging quality.
Brief description of the drawings
Fig. 1 is the schematic diagram of this creation first embodiment.
Figure 1A is the curvature of field and distortion figure of this creation first embodiment.
Figure 1B is lateral chromatic aberration figure of this creation first embodiment at different image heights.
Fig. 2 is the schematic diagram of this creation second embodiment.
Fig. 2A is the curvature of field and distortion figure of this creation second embodiment.
Fig. 2 B are lateral chromatic aberration figure of this creation second embodiment at different image heights.
Fig. 3 is the schematic diagram of this creation 3rd embodiment.
Fig. 3 A are the curvature of field and distortion figure of this creation 3rd embodiment.
Fig. 3 B are lateral chromatic aberration figure of this creation 3rd embodiment at different image heights.
Embodiment
Fig. 1 is refer to, illustrated is the first embodiment of this creation, and the five chips wide-angle lens (calls five chip mirrors in the following text
Head) in optical axis L by thing side A to image side B sequentially include one first eyeglass 10, one second eyeglass 20, an aperture ST, one the 3rd mirror
Piece 30, one the 4th eyeglass 40 and one the 5th eyeglass 50, CCD, CMOS or other photosensory assemblies (not illustrating) are provided with the B of image side,
The flat lenses 60 such as optical filter and/or protective glass can be provided between photosensory assembly and the 5th eyeglass 50, flat lenses 60
Quantity can increase and decrease or be not provided with demand.
In the present embodiment, the first eyeglass 10 has negative refractive power, and its thing side is convex surface and image side surface is concave surface, its thing side
The radius of curvature in face be on the occasion of and more than image side surface radius of curvature, the thing side of the first eyeglass 10 and image side surface made of plastics
Can be aspherical.Herein, when the curved surface center of circle of a curved surface compared with the curved surface in itself closer to image side when, then the curvature of the curved surface
Radius be on the occasion of；Conversely, when the curved surface center of circle of a curved surface compared with the curved surface in itself closer to thing side when, then the radius of curvature of the curved surface
For negative value.
Second eyeglass 20 has positive refractive power, and its thing side and image side surface are convex surface, and its thing flank radius is just
Value and the radius of curvature for being more than its image side surface, the thing side of the second eyeglass 20 made of plastics and image side surface can be aspherical.
3rd eyeglass 30 has positive refractive power, and its thing side and image side surface are convex surface, and its thing flank radius is more than
The radius of curvature of its image side surface, and the radius of curvature of its image side surface is negative value, the thing side of the 3rd eyeglass 30 made of plastics and
Image side surface can be aspherical.In addition, the aperture ST between second, third eyeglass 20,30 contributes to balance system dioptric
The configuration of power.
4th eyeglass 40 has negative refractive power, and its thing side and image side surface are concave surface, and the radius of curvature of its thing side is small
In the radius of curvature of image side surface, and the radius of curvature of its image side surface be on the occasion of, the thing side of the 4th eyeglass 40 made of plastics and
Image side surface can be aspherical.
5th eyeglass 50 has positive refractive power, and its thing side and image side surface are convex surface, and the radius of curvature of its thing side is big
In the radius of curvature of image side surface, and the radius of curvature of its image side surface is negative value, the thing side of the 5th eyeglass 50 made of plastics and
Image side surface can be aspherical.The cooperation of first eyeglass 10 and the 5th eyeglass 50 can make the five chips camera lens have wide-angle and low abnormal
The characteristic of change.
The design parameter of the five chip camera lenses of the present embodiment is as shown in following table one：
Table one
In the present embodiment, the thing side of the first to the 5th eyeglass 10,20,30,40,50 and image side surface be it is aspherical, its
Face type meets following aspherical formula：
Wherein c=1/r, r are surface curvature radius, and h is height of the light on this surface, and k is conical surface coefficient, and B is the 4th
Level number, C are the 6th level number, and D is the 8th level number, and E is the tenth level number, and F is the tenth second order coefficient, and G is the tenth quadravalence
Coefficient, H are the 16th level number.Each aspherical parameter of first embodiment is as shown in following table two：
Table two
| Thing side 1 | Image side surface 2 | Thing side 3 | Image side surface 4 | Thing side 6 | |
| k | -1.0850E+01 | -8.6300E-01 | 6.4000E-01 | 1.8850E+01 | -2.3780E+01 |
| B | 1.0639E-04 | 1.9315E-03 | 8.8772E-04 | 1.0295E-02 | 3.0080E-02 |
| C | -1.9737E-05 | 7.9922E-04 | -1.1048E-03 | 7.7300E-04 | -2.4178E-03 |
| D | -3.9504E-07 | -1.4343E-04 | 2.1957E-04 | 2.0135E-04 | -1.7021E-04 |
| E | 2.5289E-08 | 2.7250E-05 | 1.5980E-05 | 3.8582E-05 | -1.9897E-04 |
| F | -4.2549E-10 | -1.1188E-05 | -1.1390E-05 | 4.9910E-05 | 2.3384E-05 |
| G | 0 | 0 | 0 | 0 | 1.6856E-04 |
| H | 0 | 0 | 0 | 0 | -5.4298E-05 |
| Image side surface 7 | Thing side 8 | Image side surface 9 | Thing side 10 | Image side surface 11 | |
| k | -4.5000E-01 | 7.2000E-02 | -3.6500 | -1.0600E+01 | -2.6000E-01 |
| B | 1.7428E-02 | -2.3413E-02 | -9.9714E-03 | 3.8221E-03 | 9.6317E-03 |
| C | -2.0013E-03 | 1.3107E-03 | 2.6514E-03 | 2.5744E-04 | 2.9538E-04 |
| D | 1.2540E-03 | 5.0793E-04 | 2.3388E-05 | -6.4869E-05 | 1.6848E-04 |
| E | -1.4983E-05 | 2.4683E-05 | 1.0957E-06 | 1.0714E-05 | 1.7548E-06 |
| F | -8.2856E-05 | 1.8063E-04 | 1.0784E-06 | -9.4097E-07 | -1.1622E-06 |
| G | 2.7980E-05 | 6.1848E-05 | 4.0658E-07 | 1.2885E-07 | -1.6027E-07 |
| H | 4.4755E-05 | 5.5024E-06 | 6.0066E-09 | -2.5708E-07 | -1.1481E-08 |
Based on previous designs, the system focal length value F of the present embodiment is 2.043mm, system length 15.6mm, the first eyeglass
Focal length value is -3.318mm, and the second eyeglass focal length value is 7.179mm, and the 3rd eyeglass focal length value is 2.781mm, the 4th eyeglass focal length
It is 3.619mm to be worth for -2.453mm, the 5th eyeglass focal length value, and maximum visual angle is up to 110 °.
Now, the numerical value of five chip camera lens items relational expressions is as shown in following table three：
Table three
Consequently, it is possible to five chip camera lenses have wide-angle, low distortion, high light receiving efficiency, the characteristic of high imaging quality, its curvature of field
And distortion figure is as shown in Figure 1A, maximum curvature of field value is no more than ± 0.06mm, maximum distortion amount about ± 4.5% or smaller, its
Lateral chromatic aberration figure at different image heights is as shown in Figure 1B, it is seen that has good aberration performance at different image heights.
Fig. 2 is refer to, illustrated is the second embodiment of this creation, and the configuration of its eyeglass is similar to first embodiment, this
The design parameter of five chip camera lenses of embodiment is as shown in following table four：
Table four
In the present embodiment, the thing side of the first to the 5th eyeglass 10,20,30,40,50 and image side surface be it is aspherical, its
Face type meets above-listed aspherical formula, and each aspherical parameter of second embodiment is as shown in following table five：
Table five
Based on previous designs, the system focal length value F of the present embodiment is 2.111mm, system length 15.6mm, the first eyeglass
Focal length value is -3.28mm, and the second eyeglass focal length value is 7.285mm, and the 3rd eyeglass focal length value is 2.902mm, the 4th eyeglass focal length
It is 3.569mm to be worth for -2.328mm, the 5th eyeglass focal length value, and maximum visual angle is up to 110 °.
Now, the numerical value of five chip camera lens items relational expressions is as shown in following table six：
Table six
| Relational expression | Numerical value | Relational expression | Numerical value |
| R1/R10 | -12.87 | R4/F | -4.24 |
| (T5+T7+T9)/(T6+T8+T10) | 13.50 | R5/F | 2.11 |
| ∣(R5/R6)+(R8/R7)+(R9/R10)∣ | 7.04 | R6/F | -0.97 |
| (T1+T3)/F | 1.48 | R7/F | -1.05 |
| (T2+T4)/F | 1.74 | R8/F | 2.62 |
| (T1+T3)/(T2+T4) | 0.85 | R9/F | 2.73 |
| (T5+T7+T9)/F | 2.50 | R10/F | -1.16 |
| (T6+T8+T10)/F | 0.19 | F/F1 | -0.64 |
| TTL/F | 7.39 | F/F2 | 0.29 |
| ALT/Gaa | 2.58 | F/F3 | 0.73 |
| R1/F | 14.94 | F/F4 | -0.91 |
| R2/F | 0.78 | F/F5 | 0.59 |
| R3/F | 4.26 |
Consequently, it is possible to five chip camera lenses have miniaturization, high resolution and the less characteristic of distortion, its curvature of field and distortion figure
As shown in Figure 2 A, maximum curvature of field value is no more than 0.16mm, and maximum distortion amount is about at ± 6% or smaller, its different image height
Lateral chromatic aberration figure is as shown in Figure 2 B, it is seen that has good aberration performance at different image heights.
Fig. 3 is refer to, illustrated is the 3rd embodiment of this creation, and the configuration of its eyeglass is similar to first embodiment, this
The design parameter of five chip camera lenses of embodiment is as shown in following table seven：
Table seven
In the present embodiment, the thing side of the first to the 5th eyeglass 10,20,30,40,50 and image side surface be it is aspherical, its
Face type meets above-listed aspherical formula, and each aspherical parameter of 3rd embodiment is as shown in following table eight：
Table eight
| Thing side 1 | Image side surface 2 | Thing side 3 | Image side surface 4 | Thing side 6 | |
| k | -9.3740 | -8.7800E-01 | -3.6090 | 1.5790E+01 | -2.8660E+01 |
| B | -1.2483E-04 | -1.8037E-03 | 7.9116E-04 | 5.5808E-03 | 3.0832E-02 |
| C | -2.4360E-05 | 1.1406E-03 | -6.2614E-04 | 4.0758E-04 | -1.7091E-03 |
| D | -1.7405E-07 | -2.7530E-04 | 8.9940E-05 | 9.1856E-04 | -9.2011E-04 |
| E | 3.9727E-08 | -1.1982E-06 | -2.8530E-06 | -4.2702E-04 | -7.3043E-04 |
| F | -6.5812E-10 | -5.4869E-06 | -3.2599E-06 | 7.9316E-05 | 1.7375E-04 |
| G | 0 | 0 | 0 | 0 | 4.3869E-04 |
| H | 0 | 0 | 0 | 0 | -1.4784E-04 |
| Image side surface 7 | Thing side 8 | Image side surface 9 | Thing side 10 | Image side surface 11 | |
| k | -4.3800E-01 | 1.8200E-01 | -1.8810E+01 | -2.9406E+01 | -2.2800E-01 |
| B | 1.7430E-02 | -2.4326E-02 | -1.4036E-02 | -1.0275E-03 | 8.8877E-03 |
| C | -2.6952E-03 | 3.4747E-04 | 2.5066E-03 | -5.6985E-04 | 4.4544E-04 |
| D | 7.7924E-04 | 2.3893E-04 | 2.8989E-05 | -8.1784E-05 | 1.0138E-04 |
| E | -2.1120E-04 | -2.3579E-05 | 1.0781E-05 | 2.9814E-05 | -5.8440E-06 |
| F | -1.0591E-04 | 1.5288E-04 | 4.9225E-06 | 3.1249E-06 | -9.0912E-07 |
| G | 4.9503E-05 | 5.5011E-05 | 2.1828E-06 | 9.2369E-08 | 5.5706E-08 |
| H | 5.5896E-05 | 1.9137E-05 | -5.9371E-07 | -4.8971E-07 | -4.1747E-09 |
Based on previous designs, the system focal length value F of the present embodiment is 2.03mm, system length 15.6mm, the first eyeglass
Focal length value is -3.276mm, and the second eyeglass focal length value is 7.394mm, and the 3rd eyeglass focal length value is 2.78mm, the 4th eyeglass focal length
It is 3.648mm to be worth for -2.665mm, the 5th eyeglass focal length value, and maximum visual angle is up to 110 °.
Now, the numerical value of five chip camera lens items relational expressions is as shown in following table nine：
Table nine
| Relational expression | Numerical value | Relational expression | Numerical value |
| R1/R10 | -2.34 | R4/F | -3.89 |
| (T5+T7+T9)/(T6+T8+T10) | 16.88 | R5/F | 2.61 |
| ∣(R5/R6)+(R8/R7)+(R9/R10)∣ | 7.60 | R6/F | -0.91 |
| (T1+T3)/F | 1.77 | R7/F | -1.27 |
| (T2+T4)/F | 1.90 | R8/F | 2.81 |
| (T1+T3)/(T2+T4) | 0.93 | R9/F | 3.07 |
| (T5+T7+T9)/F | 2.41 | R10/F | -1.21 |
| (T6+T8+T10)/F | 0.14 | F/F1 | -0.62 |
| TTL/F | 7.69 | F/F2 | 0.27 |
| ALT/Gaa | 2.52 | F/F3 | 0.73 |
| R1/F | 2.83 | F/F4 | -0.76 |
| R2/F | 0.60 | F/F5 | 0.56 |
| R3/F | 5.30 |
Consequently, it is possible to five chip camera lenses have miniaturization, high resolution and the less characteristic of distortion, its curvature of field and distortion figure
As shown in Figure 3A, maximum curvature of field value is no more than ± 0.05mm, and maximum distortion amount is about at ± 5% or smaller, its different image height
Lateral chromatic aberration figure as shown in Figure 3 B, it is seen that have good aberration performance at different image heights.
Claims (25)
1. a kind of five chip wide-angle lens, are sequentially included by thing side to image side：
One first eyeglass, there is negative refractive power, its thing side is convex surface and image side surface is concave surface；
One second eyeglass, there is positive refractive power, its thing side and image side surface are convex surface；
One the 3rd eyeglass, there is positive refractive power, its thing side and image side surface are convex surface；
One the 4th eyeglass, there is negative refractive power, its thing side and image side surface are concave surface；And
One the 5th eyeglass, there is positive refractive power, its thing side and image side surface are convex surface；
Wherein, the five chips wide-angle lens more meets following relationship：
0<(T6+T8+T10)/F<0.25；Wherein T6 is axial spacing of the three, the 4th eyeglasses on an optical axis, T8 for this
4th, axial spacing of the 5th eyeglass on the optical axis, T10 are the 5th eyeglass image side surface with being located at the component of rear side in the light
Axial spacing on axle, F are the system focal length value of the five chips wide-angle lens.
2. a kind of five chip wide-angle lens, are sequentially included by thing side to image side：
One first eyeglass, has a negative refractive power, and the radius of curvature of its thing side is on the occasion of and the radius of curvature of its thing side is more than
The radius of curvature of its image side surface；
One second eyeglass, has a positive refractive power, and the radius of curvature of its thing side is on the occasion of and the radius of curvature of its thing side is more than
The radius of curvature of its image side surface；
One the 3rd eyeglass, there is positive refractive power, the radius of curvature of its image side surface is negative value, and the radius of curvature of its thing side is more than
The radius of curvature of its image side surface；
One the 4th eyeglass, has a negative refractive power, and the radius of curvature of its image side surface is on the occasion of and the radius of curvature of its thing side is less than
The radius of curvature of its image side surface；And
One the 5th eyeglass, there is positive refractive power, the radius of curvature of its image side surface is negative value, and the radius of curvature of its thing side is more than
The radius of curvature of its image side surface；
Wherein, the five chips wide-angle lens more meets following relationship：
0<(T6+T8+T10)/F<0.25；Wherein T6 is axial spacing of the three, the 4th eyeglasses on an optical axis, T8 for this
4th, axial spacing of the 5th eyeglass on the optical axis, T10 are the 5th eyeglass image side surface with being located at the component of rear side in the light
Axial spacing on axle, F are the system focal length value of the five chips wide-angle lens.
3. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
1<(T1+T3)/F<2.5；Wherein T1 is the thickness of first eyeglass on the optical axis, and T3 is second eyeglass in the optical axis
On thickness, F be the five chips wide-angle lens system focal length value.
4. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.2<(T5+T7+T9)/F<5；Wherein T5 is thickness of the 3rd eyeglass on the optical axis, and T7 is the 4th eyeglass at this
Thickness on optical axis, T9 are thickness of the 5th eyeglass on the optical axis, and F is the system focal length value of the five chips wide-angle lens.
5. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.2<(T5+T7+T9)/F<3；Wherein T5 is thickness of the 3rd eyeglass on the optical axis, and T7 is the 4th eyeglass at this
Thickness on optical axis, T9 are thickness of the 5th eyeglass on the optical axis, and F is the system focal length value of the five chips wide-angle lens.
6. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
0.1<(T6+T8+T10)/F<0.2；Wherein T6 is axial spacing of the three, the 4th eyeglasses on the optical axis, and T8 is should
Axial spacing of four, the 5th eyeglasses on the optical axis, T10 are the 5th eyeglass image side surface with being located at the component of rear side at this
Axial spacing on optical axis, F are the system focal length value of the five chips wide-angle lens.
7. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
30≧(T5+T7+T9)/(T6+T8+T10)≧10；Wherein T5 is thickness of the 3rd eyeglass on the optical axis, and T7 is should
Thickness of 4th eyeglass on the optical axis, T9 are thickness of the 5th eyeglass on the optical axis, and T6 is that the three, the 4th eyeglasses exist
Axial spacing on the optical axis, T8 are axial spacing of the four, the 5th eyeglasses on the optical axis, and T10 is the 5th eyeglass picture
Axial spacing of the side with the component positioned at rear side on the optical axis.
8. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
20≧(T5+T7+T9)/(T6+T8+T10)≧10；Wherein T5 is thickness of the 3rd eyeglass on the optical axis, and T7 is should
Thickness of 4th eyeglass on the optical axis, T9 are thickness of the 5th eyeglass on the optical axis, and T6 is that the three, the 4th eyeglasses exist
Axial spacing on the optical axis, T8 are axial spacing of the four, the 5th eyeglasses on the optical axis, and T10 is the 5th eyeglass picture
Axial spacing of the side with the component positioned at rear side on the optical axis.
9. five chips wide-angle lens as claimed in claim 1 or 2, wherein first eyeglass are a glass lens, and this first
The thing side of eyeglass and image side surface are aspherical.
10. five chips wide-angle lens as claimed in claim 1 or 2, wherein second eyeglass are a glass lens, and this second
The thing side of eyeglass and image side surface are aspherical.
11. five chips wide-angle lens as claimed in claim 1 or 2, wherein the 3rd eyeglass are a glass lens, and the 3rd
The thing side of eyeglass and image side surface are aspherical.
12. five chips wide-angle lens as claimed in claim 1 or 2, wherein the 4th eyeglass are a glass lens, and the 4th
The thing side of eyeglass and image side surface are aspherical.
13. five chips wide-angle lens as claimed in claim 1 or 2, wherein the 5th eyeglass are a glass lens, and the 5th
The thing side of eyeglass and image side surface are aspherical.
14. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.8<R1/F<15；0.6<R2/F<0.8；-0.7<F/F1<-0.6；Wherein R1 is the curvature half of the first eyeglass thing side
Footpath, R2 are the radius of curvature of the first eyeglass image side surface, and F1 is the focal length value of first eyeglass, and F is the five chips wide-angle lens
System focal length value.
15. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
4.2<R3/F<5.4；-4.3<R4/F<-3.7；0.2<F/F2<0.3；Wherein R3 is the curvature half of the second eyeglass thing side
Footpath, R4 are the radius of curvature of the second eyeglass image side surface, and F2 is the focal length value of second eyeglass, and F is the five chips wide-angle lens
System focal length value.
16. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.1<R5/F<2.7；-1<R6/F<-0.9；0.7<F/F3<0.8；Wherein R5 is the curvature half of the 3rd eyeglass thing side
Footpath, R6 are the radius of curvature of the 3rd eyeglass image side surface, and F3 is the focal length value of the 3rd eyeglass, and F is the five chips wide-angle lens
System focal length value.
17. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
-1.3<R7/F<-1；2.2<R8/F<2.9；-1<F/F4<-0.7；Wherein R7 is the curvature half of the 4th eyeglass thing side
Footpath, R8 are the radius of curvature of the 4th eyeglass image side surface, and F4 is the focal length value of the 4th eyeglass, and F is the five chips wide-angle lens
System focal length value.
18. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.7<R9/F<3.1；-1.3<R10/F<-1.1；0.5<F/F5<0.6；Wherein R9 is the curvature of the 5th eyeglass thing side
Radius, R10 are the radius of curvature of the 5th eyeglass image side surface, and F5 is the focal length value of the 5th eyeglass, and F is the five chips wide-angle lens
The system focal length value of head.
19. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
2.5<ALT/Gaa<2.6；Wherein ALT is the thickness summation of first to the 5th eyeglass on an optical axis, Gaa for this first
To gap length summation of the 5th eyeglass on the optical axis.
20. five chips wide-angle lens as claimed in claim 1 or 2, further include an aperture and be located between second, third eyeglass.
21. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
1.5<(T2+T4)/F<2.5；Wherein T2 is axial spacing of first, second eyeglass on the optical axis, T4 for this second,
3rd eyeglass and the axial spacing on the optical axis, F are the system focal length value of the five chips wide-angle lens.
22. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
0.83<(T1+T3)/(T2+T4)<1.5；Wherein T1 is the thickness of first eyeglass on the optical axis, and T3 is second mirror
Thickness of the piece on the optical axis, T2 are axial spacing of first, second eyeglass on the optical axis, and T4 is second, third mirror
Axial spacing of the piece on the optical axis.
23. five chips wide-angle lens as claimed in claim 1 or 2, wherein the first to the 5th non-cemented doublet of eyeglass.
24. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
8≧∣(R5/R6)+(R8/R7)+(R9/R10)∣≧7；Wherein R5 is the radius of curvature of the 3rd eyeglass thing side, and R6 is
The radius of curvature of 3rd eyeglass image side surface, R7 are the radius of curvature of the 4th eyeglass thing side, and R8 is the 4th eyeglass image side
The radius of curvature in face, R9 are the radius of curvature of the 5th eyeglass thing side, and R10 is the radius of curvature of the 5th eyeglass image side surface.
25. five chips wide-angle lens as claimed in claim 1 or 2, more meets following relationship：
0 ＞ R1/R10≤- 15；Wherein R1 is the radius of curvature of the first eyeglass thing side, and R10 is the 5th eyeglass image side surface
Radius of curvature.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105211208 | 2016-07-25 | ||
| TW105211208U TWM532573U (en) | 2016-07-25 | 2016-07-25 | Five-piece wide-angle lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207148401U true CN207148401U (en) | 2018-03-27 |
Family
ID=57853146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720892271.1U Active CN207148401U (en) | 2016-07-25 | 2017-07-21 | Five-piece wide-angle lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207148401U (en) |
| TW (1) | TWM532573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501808A (en) * | 2019-07-24 | 2019-11-26 | 浙江蓝特光学股份有限公司 | A kind of vehicle-mounted projection lamp optical system of five chips |
-
2016
- 2016-07-25 TW TW105211208U patent/TWM532573U/en not_active IP Right Cessation
-
2017
- 2017-07-21 CN CN201720892271.1U patent/CN207148401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501808A (en) * | 2019-07-24 | 2019-11-26 | 浙江蓝特光学股份有限公司 | A kind of vehicle-mounted projection lamp optical system of five chips |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM532573U (en) | 2016-11-21 |
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