CN102830485A - Diaphragm-changeable infrared double-view-field optical lens - Google Patents
Diaphragm-changeable infrared double-view-field optical lens Download PDFInfo
- Publication number
- CN102830485A CN102830485A CN2012103398149A CN201210339814A CN102830485A CN 102830485 A CN102830485 A CN 102830485A CN 2012103398149 A CN2012103398149 A CN 2012103398149A CN 201210339814 A CN201210339814 A CN 201210339814A CN 102830485 A CN102830485 A CN 102830485A
- Authority
- CN
- China
- Prior art keywords
- lens
- diaphragm
- double
- positive lens
- negative lens
- 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.)
- Granted
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The invention relates to a diaphragm-changeable infrared double-view-field optical lens. A first crescent positive lens, a short-focus diaphragm, a second crescent negative lens, a third biconcave negative lens, a long-focus diaphragm, a fourth biconvex positive lens, a fifth crescent positive lens and a detector focal plane are coaxially arranged in turn from an object space to an image space, wherein the third biconcave negative lens and the fourth biconvex positive lens move between the short-focus diaphragm and the long-focus diaphragm and respectively form a narrow view-field light path and a wide view-field light path. An infrared double-view-field optical system with a large relative aperture is realized.
Description
Technical field
The present invention relates to become the infrared double-view field infrared optical lens in light hurdle, be applicable to remote monitor supervision areas such as national defence monitoring, civilian monitoring, forest fire protection.
Background technology
Thermal infrared imager is a kind of infrared radiation that is used for detection of a target object, and through means such as opto-electronic conversion, electric signal processing, the temperature distribution image of target object is converted to the high-tech product of video image.Infrared acquisition has certain penetrating, and cigarette, mist, haze, snow etc. limit and the ability of identification Hefei camouflage, can realize that round-the-clock observation mainly is applicable to remote monitor supervision areas such as national defence monitoring, civilian monitoring, forest fire protection at a distance.
Non-refrigeration thermal infrared imager is cheap, uses very extensive at civil areas such as electric power, fire-fighting, industry, medical treatment, security protections.The double-view field infrared optical system is compared the detection and the identification that can realize simultaneously target with the monoscopic camera lens, simple with the continuous magnification lens structure compared, debugs the precision height.
Though existing external patent such as US6424460B 1 realize that double-view field switches, the eyeglass number is more; Domestic patent such as the change of CN102062932A double-view field focal length doubly are 2.
Summary of the invention
In order to overcome the shortcoming of prior art, the present invention provides a kind of change light hurdle infrared double-view field optical lens, can realize the The Infrared Double Fields Optical System of big relative aperture.
The present invention solves the technical scheme that its technical matters takes: from object space to picture side the coaxial successively first curved moon positive lens, short burnt diaphragm, the second curved moon negative lens, the 3rd double-concave negative lens, long burnt diaphragm, the 4th biconvex positive lens, the 5th curved moon positive lens and the detector focal plane of being provided with; The 3rd curved moon negative lens and the 4th double-concave negative lens move between the second short burnt diaphragm and the 5th long burnt diaphragm, constitute narrow visual field light path and wide visual field light path respectively.
The present invention has two optics visual fields of narrow/wide, and wide visual field is used for the detection of target, and narrow visual field is used for identification of targets.
The present invention adopts two stop positions, avoided that same stop position causes under hypermutation multiple proportions, big relative aperture condition long burnt the time first eyeglass bore excessive, and it is inhomogeneous to add the image planes imaging that vignetting causes.The present invention becomes multiple proportions and is 4.
The present invention utilizes the mobile lens group to realize the no thermalization compensation in-40 ℃～+ 70 ℃ scopes of closely focusing and temperature.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Accompanying drawing is a synoptic diagram of the present invention.
Embodiment
Shown in accompanying drawing, optical lens is made up of two Guang Lan and five eyeglasses.The curved moon negative lens of the first curved moon positive lens 1, long burnt diaphragm 2, second 3, the 3rd double-concave negative lens 4, short burnt diaphragm 5, the 4th biconvex positive lens the 6, the 5th curved moon positive lens 7 are imaged on the detector focal plane 8.
The present invention has adopted long and short burnt two stop positions, realizes the zoom of double-view field infrared optical system simultaneously through the mobile lens group.This system comprise from object space to picture side the coaxial successively first curved moon positive lens, short burnt diaphragm, the second curved moon negative lens, the 3rd double-concave negative lens, long burnt diaphragm, the 4th biconvex positive lens, the 5th curved moon positive lens and the detector focal plane of being provided with.
The target heat radiation through the curved moon negative lens of the first curved moon positive lens 1, long burnt diaphragm 2, second 3, the 3rd double-concave negative lens 4, short burnt diaphragm 5, the 4th biconvex positive lens the 6, the 5th curved moon positive lens 7, is imaged on the detector focal plane 8 successively.When light passes through short burnt diaphragm, when the second curved moon negative lens 3 and the 3rd double-concave negative lens 4 are positioned at A shown in Figure 1 position, constitute the wide visual field of optical system light path.When the second curved moon negative lens 3 and the 3rd double-concave negative lens 4 move to the B position along axle, light is during through long burnt diaphragm, the narrow visual field of formation optical system light path.The concrete parameter of this optical lens is as shown in table 1.
Table 1
| Face type sequence number | Radius-of-curvature | The face type at interval |
| 1： | 209.7400 | 11.8000 |
| 2： | 355.1000 | 8.51 |
| 3: (long burnt diaphragm) | infinity | 51.3/94.5 |
| 4： | 569.2300 | 4.5000 |
| 5： | 237.8300 | 6.2000 |
| 6： | -187.5460 | 3.8000 |
| 7： | 206.1600 | 46.94/3.74 |
| 8: (short burnt diaphragm) | infinity | 0.5600 |
| 9： | 170.8900 | 6.0000 |
| 10： | -1240.5430 | 61.8400 |
| 11： | 46.9150 | 5.2000 |
| 12： | 67.2650 | 18.0000 |
| 13： | infinity | 1.0000 |
| 14： | infinity | 1.3600 |
| Image: (image planes) | infinity |
The F number that becomes the infrared double-view field optical lens in light hurdle is 0.8/1.2 (short Jiao/length is burnt); Narrow visual field focal length is 180mm, and wide visual field focal length is 45mm; First length overall to the detector focal plane of optical system is 227mm, and the imaging wave band is 8 μ m～12 μ m; Through moving axially of the second curved moon negative lens and the 3rd double-concave negative lens, realize that switch the visual field and the interior image planes drift of-40 ℃～+ 70 ℃ temperature ranges of compensation.
The lens materials of the curved moon negative lens of the said first curved moon positive lens 1, second 3, the 3rd double-concave negative lens 4, the 4th biconvex positive lens 6 and the 5th curved moon positive lens 7 is respectively germanium, germanium, zinc selenide, germanium, germanium.
Claims (4)
1. one kind becomes the infrared double-view field optical lens in light hurdle; It is characterized in that: from object space to picture side the coaxial successively first curved moon positive lens (1), short burnt diaphragm (5), the second curved moon negative lens (3), the 3rd double-concave negative lens (4), long burnt diaphragm (2), the 4th biconvex positive lens (6), the 5th curved moon positive lens (7) and detector focal plane (8) of being provided with; The 3rd curved moon negative lens (4) and the 4th double-concave negative lens (6) move between short burnt diaphragm (5) and long burnt diaphragm (2), constitute narrow visual field light path and wide visual field light path respectively.
2. the infrared double-view field optical lens in change light according to claim 1 hurdle, it is characterized in that: the concrete parameter of optical lens is as shown in table 1.
Table 1
3. the infrared double-view field optical lens in change light according to claim 1 hurdle is characterized in that: the F number that becomes the infrared double-view field optical lens in light hurdle is 0.8/1.2; Narrow visual field focal length is 180mm, and wide visual field focal length is 45mm; First length overall to the detector focal plane of optical system is 227mm, and the imaging wave band is 8 μ m ~ 12 μ m.
4. the infrared double-view field optical lens in change light according to claim 1 hurdle is characterized in that: the lens materials of the said first curved moon positive lens (1), the second curved moon negative lens (3), the 3rd double-concave negative lens (4), the 4th biconvex positive lens (6) and the 5th curved moon positive lens (7) is respectively germanium, germanium, zinc selenide, germanium, germanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339814.9A CN102830485B (en) | 2012-09-13 | 2012-09-13 | Diaphragm-changeable infrared double-view-field optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339814.9A CN102830485B (en) | 2012-09-13 | 2012-09-13 | Diaphragm-changeable infrared double-view-field optical lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102830485A true CN102830485A (en) | 2012-12-19 |
| CN102830485B CN102830485B (en) | 2014-12-17 |
Family
ID=47333675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210339814.9A Active CN102830485B (en) | 2012-09-13 | 2012-09-13 | Diaphragm-changeable infrared double-view-field optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102830485B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525591A (en) * | 2017-08-23 | 2017-12-29 | 上海热像机电科技股份有限公司 | A kind of double-view field thermal imaging system and temp measuring method |
| CN107924041A (en) * | 2015-08-24 | 2018-04-17 | Lg伊诺特有限公司 | Imaging lens and camera model and the digital device including the camera model |
| CN109471240A (en) * | 2018-12-13 | 2019-03-15 | 福建福光天瞳光学有限公司 | A kind of focal length infrared optics athermalism system |
| CN109932809A (en) * | 2019-04-18 | 2019-06-25 | 福建福光股份有限公司 | The light-duty safety monitoring infrared lens of large aperture high-resolution and its working method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154516B (en) * | 2016-03-18 | 2019-02-22 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6424460B1 (en) * | 1998-05-08 | 2002-07-23 | Pilkington Pe Limited | Dual field-of-view objects system for the infrared |
| CN101943608A (en) * | 2010-10-12 | 2011-01-12 | 福建福光数码科技有限公司 | Long-wave infrared two-speed viewing field tracking measurement lens |
| CN102062932A (en) * | 2010-10-22 | 2011-05-18 | 中国航空工业集团公司洛阳电光设备研究所 | Uncooled double-field-of-view infrared optical system |
-
2012
- 2012-09-13 CN CN201210339814.9A patent/CN102830485B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6424460B1 (en) * | 1998-05-08 | 2002-07-23 | Pilkington Pe Limited | Dual field-of-view objects system for the infrared |
| CN101943608A (en) * | 2010-10-12 | 2011-01-12 | 福建福光数码科技有限公司 | Long-wave infrared two-speed viewing field tracking measurement lens |
| CN102062932A (en) * | 2010-10-22 | 2011-05-18 | 中国航空工业集团公司洛阳电光设备研究所 | Uncooled double-field-of-view infrared optical system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107924041A (en) * | 2015-08-24 | 2018-04-17 | Lg伊诺特有限公司 | Imaging lens and camera model and the digital device including the camera model |
| CN107924041B (en) * | 2015-08-24 | 2020-11-06 | Lg伊诺特有限公司 | Imaging lens, camera module and digital device including the camera module |
| US11022782B2 (en) | 2015-08-24 | 2021-06-01 | Lg Innotek Co., Ltd. | Imaging lens, and camera module and digital device comprising same |
| CN107525591A (en) * | 2017-08-23 | 2017-12-29 | 上海热像机电科技股份有限公司 | A kind of double-view field thermal imaging system and temp measuring method |
| CN109471240A (en) * | 2018-12-13 | 2019-03-15 | 福建福光天瞳光学有限公司 | A kind of focal length infrared optics athermalism system |
| CN109471240B (en) * | 2018-12-13 | 2024-03-01 | 福建福光天瞳光学有限公司 | Long-focus infrared optical athermalization system |
| CN109932809A (en) * | 2019-04-18 | 2019-06-25 | 福建福光股份有限公司 | The light-duty safety monitoring infrared lens of large aperture high-resolution and its working method |
| CN109932809B (en) * | 2019-04-18 | 2024-01-12 | 福建福光股份有限公司 | Large-aperture high-resolution light security monitoring infrared lens and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102830485B (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102062932B (en) | Uncooled double-field-of-view infrared optical system | |
| CN102830485B (en) | Diaphragm-changeable infrared double-view-field optical lens | |
| CN105301748B (en) | A kind of visual field infrared optical system of two waveband three | |
| CN102608734B (en) | Medium wave infrared 30 times continuous zooming optical system without rear fixed group | |
| CN102269871B (en) | Bicolor dual-view field infrared imaging optical system | |
| CN103278927A (en) | Two-waveband hole-diameter-shared light-path-shared zoom-shared imaging optical system | |
| CN104238099A (en) | Large-zoom-ratio infrared dual-band common-caliber common-zooming optical system | |
| CN104793324A (en) | Infrared dual-waveband common-aperture refraction and reflection imaging system | |
| CN103852874A (en) | Continuous zooming infrared lens with extra large zoom ratio | |
| CN104317040A (en) | Uncooled high-zoom-ratio continuous-zooming optical system | |
| CN203324565U (en) | Infrared zooming lens | |
| CN204945480U (en) | Large target surface continuous zooming optical system | |
| CN201945734U (en) | Non-refrigeration dual field-of-view infrared optical system | |
| CN102354043A (en) | Double-view-field/double-color infrared thermal difference eliminating optical system based on harmonic diffractive optical element | |
| CN210270354U (en) | Wide-spectrum large-relative-aperture medium-long wave infrared imaging optical system | |
| CN106773032A (en) | A kind of big visual field infrared optical system of zoom ratio three of ultrashort compact | |
| CN103634516A (en) | Preprocessing lens | |
| CN102681161B (en) | Small imaging optical system with long focal length and high image quality | |
| CN203909386U (en) | Underwater special-purpose imaging wide-angle lens | |
| CN203773146U (en) | Super-large-zoomratio continuous zooming infrared lens | |
| CN203365788U (en) | Remote infrared double-field zoom optical system | |
| CN101408667B (en) | Optical hinge | |
| CN112346228B (en) | Infrared continuous zooming optical system based on composite zooming super-large zoom ratio | |
| CN205642622U (en) | Thermal infrared divides aperture polarization imaging optics system | |
| CN106680969A (en) | Athermalization super-field-of-view medium-wave infrared optical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |