CN109932809A - The light-duty safety monitoring infrared lens of large aperture high-resolution and its working method - Google Patents
The light-duty safety monitoring infrared lens of large aperture high-resolution and its working method Download PDFInfo
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- CN109932809A CN109932809A CN201910311904.9A CN201910311904A CN109932809A CN 109932809 A CN109932809 A CN 109932809A CN 201910311904 A CN201910311904 A CN 201910311904A CN 109932809 A CN109932809 A CN 109932809A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 47
- 230000003287 optical effect Effects 0.000 claims abstract description 35
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000005864 Sulphur Substances 0.000 claims abstract description 16
- 230000004075 alteration Effects 0.000 claims abstract description 8
- 238000003384 imaging method Methods 0.000 claims abstract description 7
- 230000003595 spectral effect Effects 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000005387 chalcogenide glass Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000005315 distribution function Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The present invention relates to a kind of light-duty safety monitoring infrared lens of large aperture high-resolution and its working methods, it is characterized by: being followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes including 2 sulphur system eyeglasses and the diaphragm between 2 sulphur system eyeglasses；The specific performance parameter of the optical texture of bent moon positive lens A, diaphragm B and bent moon positive lens C composition are as follows: (1) focal length: EFFL=10mm, (2) number=0.9 F, (3) field angle: 2w >=50 °, (4) optical distortion :≤5%, (5) imaging circular diameter is greater than Ф 9.8, (6) operating spectral range: 8um~12um, (7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm.The present invention heat differential and color aberration characteristics special using diffraction surfaces, effectively improve the color difference and heat differential of system, realize short and small light-duty compact optical while capable of reducing system number of lenses.
Description
Technical field:
The present invention provides a kind of light-duty safety monitoring infrared lens of large aperture high-resolution and its working methods.
Background technique:
With the development of infrared optics technology, infrared lens use field more and more wider, infrared lens requirement image quality height,
It is small in size, light-weight, under different temperatures environment keep working performance.Current long wave uncooled ir camera lens most of on the market
It is all that Pixel size is cooperated to be that 17 μm of resolution ratio is designed, with the maturation of infrared chip technology, detector producer is not
The disconnected smaller detector of pixel for releasing higher resolution in the market, Pixel size is only 14um, 12 μm etc., close to diffraction pole
Limit, it is very high to the optical performance requirements of camera lens, however the infrared mirror that rare this high-resolution detector of cooperation uses on the market
Head.
Summary of the invention:
In place of against the above deficiency, a kind of infrared mirror of light-duty safety monitoring of large aperture high-resolution is provided
Head, the light-duty safety monitoring infrared lens of the large aperture high-resolution have light passing amount big, light-weight and inexpensive.
High-resolution light-duty safety monitoring infrared lens in large aperture of the present invention, it is characterised in that: including 2 sulphur system eyeglasses and
Diaphragm between 2 sulphur system eyeglasses is followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；It is curved
The specific performance parameter of the optical texture of moon positive lens A, diaphragm B and bent moon positive lens C composition are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm.
Further, the spacing of above-mentioned optical structure element from left to right is as follows: between bent moon positive lens A and the air of diaphragm B
It is divided into 1.8mm；The airspace of diaphragm B and bent moon positive lens C is 1.2mm.
Further, focal length is set as f, and the optical mirror slip focal length from object plane to image planes is followed successively by f1-f2；The two has as follows
Relationship: 8 < f1/f < 10; 0.5<f2/f<2.0.
Further, above-mentioned bent moon positive lens A, diaphragm B and bent moon positive lens C parameter list:
| Surface serial number | Radius of curvature (mm) | It is spaced (mm) | Material | Remarks |
| S1 | 10<R<20 | 8.3 | Chalcogenide glass | It is aspherical |
| S2 | 5<R<15 | 1.8 | Diffraction surfaces | |
| Diaphragm | infinity | 1.2 | ||
| S4 | -60<R<-20 | 10 | Chalcogenide glass | It is aspherical |
| S5 | -20<R<-10 | 4.2 | Diffraction surfaces |
Aspherical and diffraction surfaces related data:
| Aspherical S1 | 1.863E-005 | 2.609E-007 | -4.727E-011 | 0 |
| Diffraction surfaces S2 | 1.586E-004 | 2.223E-005 | -8.989E-007 | -3.954E-009 |
| Aspherical S4 | -1.233E-003 | -2.634E-005 | 3.408E-007 | -6.081E-008 |
| Diffraction surfaces S5 | 3.635E-005 | -5.022E-007 | 2.936E-009 | -2.121E-011 |
Aspherical expression formula are as follows:
Z represents the position of optical axis direction, and r represents the height in the vertical direction of opposite optical axis, and c represents radius of curvature, and k represents circle
Coefficient is bored,、、、... asphericity coefficient is represented, in aspherical surface data, E-n representative "", such as
1.863E-005 representing。
In diffraction surfaces zemax phase distribution function=M ():
| M | |||
| Diffraction surfaces S2 | 1 | -9.5 | -2.1 |
| Diffraction surfaces S5 | 1 | -37.92 | -5.3 |
The working method of high-resolution light-duty safety monitoring infrared lens in large aperture of the present invention, it is characterised in that: large aperture
The light-duty safety monitoring infrared lens of high-resolution, it is characterised in that: including 2 sulphur system eyeglasses and be located between 2 sulphur system eyeglasses
Diaphragm, be followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；Bent moon positive lens A, diaphragm B and curved
The specific performance parameter for the optical texture that moon positive lens C forms are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm；
When work, light reaches IMA, utilizes the special heat of diffraction surfaces by bent moon positive lens A, diaphragm B and bent moon positive lens C
Difference and color aberration characteristics effectively improve color difference and heat differential while reducing number of lenses, realize short and small light-duty compact optical system
System.
High-resolution light-duty safety monitoring infrared lens in large aperture of the present invention compare the advantage that other camera lenses have:
A) clear aperture is big, increase the amount of radiation into the infrared lens, shooting effect is preferable under the conditions of bad weather；
B) heat differential and color aberration characteristics special using diffraction surfaces, effectively change while capable of reducing the infrared lens number of lenses
The color difference and heat differential of kind system, realize short and small light-duty compact optical；
C) even aspheric surface is used in combination, preferably balances aberration, promote image quality further；Pass through the adjustment of curvature and thickness
The susceptibility of each optical element is reduced, so that the camera lens is more readily processed and adjustment.
D) the infrared lens two panels eyeglass all uses sulphur based material, while the image quality under high/low temperature condition is changed
It is kind, really realize optics without thermalization.
Detailed description of the invention:
Fig. 1 is profile construction schematic diagram of the invention；
Fig. 2 is the mtf value under the camera lens normal temperature environment；
Fig. 3 is MTF functional value of the camera lens under the degree environment of low temperature -40；
Fig. 4 is MTF functional value of the camera lens under 80 degree of environment of high temperature；
Fig. 5 is curvature of field distortion figure under room temperature.
Specific embodiment:
The present invention is further described with reference to the accompanying drawings and detailed description.
High-resolution light-duty safety monitoring infrared lens in large aperture of the present invention, it is characterised in that: including 2 sulphur system eyeglasses and
Diaphragm between 2 sulphur system eyeglasses is followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；It is curved
The specific performance parameter of the optical texture of moon positive lens A, diaphragm B and bent moon positive lens C composition are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm.
Further, the spacing of above-mentioned optical structure element from left to right is as follows: between bent moon positive lens A and the air of diaphragm B
It is divided into 1.8mm；The airspace of diaphragm B and bent moon positive lens C is 1.2mm.
Further, focal length is set as f, and the optical mirror slip focal length from object plane to image planes is followed successively by f1-f2；The two has as follows
Relationship: 8 < f1/f < 10; 0.5<f2/f<2.0.
Parallel flat D is equipped between bent moon positive lens C and IMA project.
Further, above-mentioned bent moon positive lens A, diaphragm B and bent moon positive lens C parameter list:
| Surface serial number | Radius of curvature (mm) | It is spaced (mm) | Material | Remarks |
| S1 | 10<R<20 | 8.3 | Chalcogenide glass | It is aspherical |
| S2 | 5<R<15 | 1.8 | Diffraction surfaces | |
| Diaphragm | infinity | 1.2 | ||
| S4 | -60<R<-20 | 10 | Chalcogenide glass | It is aspherical |
| S5 | -20<R<-10 | 4.2 | Diffraction surfaces |
Aspherical and diffraction surfaces related data:
| Aspherical S1 | 1.863E-005 | 2.609E-007 | -4.727E-011 | 0 |
| Diffraction surfaces S2 | 1.586E-004 | 2.223E-005 | -8.989E-007 | -3.954E-009 |
| Aspherical S4 | -1.233E-003 | -2.634E-005 | 3.408E-007 | -6.081E-008 |
| Diffraction surfaces S5 | 3.635E-005 | -5.022E-007 | 2.936E-009 | -2.121E-011 |
Aspherical expression formula are as follows:
Z represents the position of optical axis direction, and r represents the height in the vertical direction of opposite optical axis, and c represents radius of curvature, and k represents circle
Coefficient is bored,、、、... asphericity coefficient is represented, in aspherical surface data, E-n representative "", such as
1.863E-005 representing。
In diffraction surfaces zemax phase distribution function=M ():
| M | |||
| Diffraction surfaces S2 | 1 | -9.5 | -2.1 |
| Diffraction surfaces S5 | 1 | -37.92 | -5.3 |
The working method of high-resolution light-duty safety monitoring infrared lens in large aperture of the present invention, it is characterised in that: large aperture
The light-duty safety monitoring infrared lens of high-resolution, it is characterised in that: including 2 sulphur system eyeglasses and be located between 2 sulphur system eyeglasses
Diaphragm, be followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；Bent moon positive lens A, diaphragm B and curved
The specific performance parameter for the optical texture that moon positive lens C forms are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm；
When work, light reaches IMA, utilizes the special heat of diffraction surfaces by bent moon positive lens A, diaphragm B and bent moon positive lens C
Difference and color aberration characteristics effectively improve color difference and heat differential while reducing number of lenses, realize short and small light-duty compact optical system
System.
High-resolution light-duty safety monitoring infrared lens in large aperture of the present invention compare the advantage that other camera lenses have:
A) clear aperture is big, increase the amount of radiation into the infrared lens, shooting effect is preferable under the conditions of bad weather；
B) heat differential and color aberration characteristics special using diffraction surfaces, effectively change while capable of reducing the infrared lens number of lenses
The color difference and heat differential of kind system, realize short and small light-duty compact optical；
C) even aspheric surface is used in combination, preferably balances aberration, promote image quality further；Pass through the adjustment of curvature and thickness
The susceptibility of each optical element is reduced, so that the camera lens is more readily processed and adjustment.
D) the infrared lens two panels eyeglass all uses sulphur based material, while the image quality under high/low temperature condition is changed
It is kind, really realize optics without thermalization.
As seen from Figure 2, camera lens resolution ratio with higher, meets 640*512,12um uncooled detector
Biography needs to ask；By Fig. 3, Fig. 4 it is found that camera lens MTF decaying very little in the environment of high temperature and low temperature, realizes the optics of camera lens
Without thermalization performance.As shown in Figure 5, which meets distortion and requires.
High-resolution light-duty safety monitoring infrared lens in large aperture of the present invention are only made of two panels eyeglass, optical system tool
There is larger field angle, large range of scenery can be shot, and light passing amount is big, high resolution is small in size, and light-weight, temperature drift is close
Zero, normal use, the camera lens it can allow 640*512, the detection of 12um non-brake method LONG WAVE INFRARED in the environment of high temperature or low temperature
Device uses.
The high-resolution detector that tie detector producer of the present invention constantly releases, is conducive to make up high-resolution in the market
Rate camera lens notch matches 640x512@12um uncooled detector, which has light passing amount big, light-weight, inexpensive, mechanical
Structure is simple, and transmissivity is high, can be applied to the fields such as safety monitoring, aircraft pod.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of light-duty safety monitoring infrared lens of large aperture high-resolution, it is characterised in that: including 2 sulphur system eyeglasses and be located at
Diaphragm between 2 sulphur system eyeglasses is followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；Bent moon is just
The specific performance parameter of the optical texture of lens A, diaphragm B and bent moon positive lens C composition are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm.
2. high-resolution light-duty safety monitoring infrared lens in large aperture according to claim 1, it is characterised in that: the light
It is as follows to learn the spacing of structural member from left to right: the airspace of bent moon positive lens A and diaphragm B is 1.8mm；Diaphragm B and bent moon are just
The airspace of lens C is 1.2mm.
3. high-resolution light-duty safety monitoring infrared lens in large aperture according to claim 1, it is characterised in that: setting is burnt
Away from for f, the optical mirror slip focal length from object plane to image planes is followed successively by f1-f2；The two has following relationship: 8 < f1/f < 10; 0.5<
f2/f<2.0。
4. high-resolution light-duty safety monitoring infrared lens in large aperture according to claim 1, it is characterised in that: described curved
Moon positive lens A, diaphragm B and bent moon positive lens C parameter list:
Aspherical and diffraction surfaces related data:
Aspherical expression formula are as follows:
Z represents the position of optical axis direction, and r represents the height in the vertical direction of opposite optical axis, and c represents radius of curvature, and k represents circle
Coefficient is bored,、、、... asphericity coefficient is represented, in aspherical surface data, E-n representative "", such as
1.863E-005 representing；
In diffraction surfaces zemax phase distribution function=M ():
。
5. a kind of working method of the light-duty safety monitoring infrared lens of large aperture high-resolution, it is characterised in that: large aperture high score
The light-duty safety monitoring infrared lens of resolution, it is characterised in that: the light including 2 sulphur system eyeglasses and between 2 sulphur system eyeglasses
Door screen is followed successively by bent moon positive lens A, diaphragm B and bent moon positive lens C from object plane to image planes；Bent moon positive lens A, diaphragm B and bent moon are just
The specific performance parameter of the optical texture of lens C composition are as follows:
(1) focal length: EFFL=10mm
(2) number=0.9 F
(3) field angle: 2w >=50 °
(4) optical distortion :≤5%
(5) imaging circular diameter is greater than Ф 9.8
(6) operating spectral range: 8um~12um
(7) optics overall length TTL≤28mm, optics rear cut-off distance >=6.5mm；
When work, light reaches IMA, utilizes the special heat of diffraction surfaces by bent moon positive lens A, diaphragm B and bent moon positive lens C
Difference and color aberration characteristics effectively improve color difference and heat differential while reducing number of lenses, realize short and small light-duty compact optical system
System.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910311904.9A CN109932809B (en) | 2019-04-18 | 2019-04-18 | Large-aperture high-resolution light security monitoring infrared lens and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311904.9A CN109932809B (en) | 2019-04-18 | 2019-04-18 | Large-aperture high-resolution light security monitoring infrared lens and working method thereof |
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| Publication Number | Publication Date |
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| CN109932809A true CN109932809A (en) | 2019-06-25 |
| CN109932809B CN109932809B (en) | 2024-01-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955032A (en) * | 2020-01-03 | 2020-04-03 | 福建福光天瞳光学有限公司 | Large-target-surface high-resolution optical athermalization lens and working method thereof |
| CN114967060A (en) * | 2022-06-15 | 2022-08-30 | 安徽光智科技有限公司 | Small-size poor infrared camera lens that disappears |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301748A (en) * | 1994-03-10 | 1995-11-14 | Konica Corp | Lens system having graded index lens |
| US20040246598A1 (en) * | 2003-04-09 | 2004-12-09 | Olympus Corporation | Image forming optical system and electronic instrument using the same |
| JP2005250512A (en) * | 2002-07-30 | 2005-09-15 | Konica Minolta Opto Inc | Imaging lens |
| JP2006330575A (en) * | 2005-05-30 | 2006-12-07 | Konica Minolta Opto Inc | Imaging lens |
| CN1971331A (en) * | 2005-11-25 | 2007-05-30 | 三星电机株式会社 | Subminiature optical system |
| CN102830485A (en) * | 2012-09-13 | 2012-12-19 | 河北汉光重工有限责任公司 | Diaphragm-changeable infrared double-view-field optical lens |
| CN103229088A (en) * | 2010-11-23 | 2013-07-31 | 尤米科尔公司 | Super wide angle lens arrangement for infrared applications |
| CN104503067A (en) * | 2014-09-22 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Image capture lens |
| CN109143539A (en) * | 2017-06-27 | 2019-01-04 | 佳能株式会社 | Optical system and image pick-up device including the optical system |
| CN209979915U (en) * | 2019-04-18 | 2020-01-21 | 福建福光股份有限公司 | Large-aperture high-resolution light security monitoring infrared lens |
-
2019
- 2019-04-18 CN CN201910311904.9A patent/CN109932809B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301748A (en) * | 1994-03-10 | 1995-11-14 | Konica Corp | Lens system having graded index lens |
| JP2005250512A (en) * | 2002-07-30 | 2005-09-15 | Konica Minolta Opto Inc | Imaging lens |
| US20040246598A1 (en) * | 2003-04-09 | 2004-12-09 | Olympus Corporation | Image forming optical system and electronic instrument using the same |
| JP2006330575A (en) * | 2005-05-30 | 2006-12-07 | Konica Minolta Opto Inc | Imaging lens |
| CN1971331A (en) * | 2005-11-25 | 2007-05-30 | 三星电机株式会社 | Subminiature optical system |
| CN103229088A (en) * | 2010-11-23 | 2013-07-31 | 尤米科尔公司 | Super wide angle lens arrangement for infrared applications |
| CN102830485A (en) * | 2012-09-13 | 2012-12-19 | 河北汉光重工有限责任公司 | Diaphragm-changeable infrared double-view-field optical lens |
| CN104503067A (en) * | 2014-09-22 | 2015-04-08 | 青岛歌尔声学科技有限公司 | Image capture lens |
| CN109143539A (en) * | 2017-06-27 | 2019-01-04 | 佳能株式会社 | Optical system and image pick-up device including the optical system |
| CN209979915U (en) * | 2019-04-18 | 2020-01-21 | 福建福光股份有限公司 | Large-aperture high-resolution light security monitoring infrared lens |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110955032A (en) * | 2020-01-03 | 2020-04-03 | 福建福光天瞳光学有限公司 | Large-target-surface high-resolution optical athermalization lens and working method thereof |
| CN110955032B (en) * | 2020-01-03 | 2023-07-21 | 福建福光天瞳光学有限公司 | Large-target-surface high-resolution optical athermalized lens and working method thereof |
| CN114967060A (en) * | 2022-06-15 | 2022-08-30 | 安徽光智科技有限公司 | Small-size poor infrared camera lens that disappears |
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|---|---|
| CN109932809B (en) | 2024-01-12 |
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