CN106646865B - A kind of ultrashort two visual fields infrared optical system - Google Patents
A kind of ultrashort two visual fields infrared optical system Download PDFInfo
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- CN106646865B CN106646865B CN201611094864.XA CN201611094864A CN106646865B CN 106646865 B CN106646865 B CN 106646865B CN 201611094864 A CN201611094864 A CN 201611094864A CN 106646865 B CN106646865 B CN 106646865B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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Abstract
The present invention relates to a kind of ultrashort two visual fields infrared optical systems, including object lens, zoom mirror, compensating glass, the first convergent mirror and the second convergent mirror set gradually along optical path, it is moved forward and backward to form small field of view optical path and big visual field optical path by zoom mirror, due to realizing the conversion and focusing compensation of two visual fields using the movement with a piece of lens, reduce the movement mechanism in system, remaining part in optical path is fixation member, and adjustment is simple, largely reduces the resetting difficulty of system.The axial two visual field infrared optical systems of ultrashort compact of the invention are turned back in no-mirror using Polaroid configuration and realize two visual field zooms of optical system in ultrashort system space, and optical system is small in size, light-weight, are suitble to handheld application.
Description
Technical field
The invention belongs to optical devices technologies fields, are related to a kind of ultrashort two visual fields infrared optical system.
Background technique
Photoelectric detecting system needs to have very remote operating distance and high-resolution imaging performance, and to be able to satisfy high collection
It becomes second nature, the requirement of small size.Currently, infrared imaging system has more and more extensive answer in fields such as navigation, observation, tracking
With, and monoscopic infrared optical system is unable to satisfy the growth requirement of modern infrared optical system, two visual fields due to having a single function
Infrared optical system has two visual fields of size, and big visual field can be used for extensive search target, and small field of view can further look at
And identification, it is widely used in modern infrared optical system.
Hand-held infrared system, it is desired to which system has the characteristics that portable, easy to operate, and application prospect is extensive, such as army
Can be used as individual reconnaissance equipment in thing, night vision rifle takes aim at equipment, can be used as on civilian the scene of a fire it is mobile search and rescue equipment, it is mechanical therefore
Hinder detection device etc..Wherein, the application of double vision field optical system is especially extensive.
In common double vision field system, zoom group, the mobile transformation for realizing double-view field of two groups of lens of compensation group, is increased in this way
The difficulty of add ray machine adjustment, ultrashort two visual field optical lens of compact save system space by substantially compression volume weight.
Summary of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of ultrashort two visual fields infrared optical system.
Technical solution
A kind of ultrashort two visual fields infrared optical system, it is characterised in that including object lens 1, zoom mirror 2, compensating glass 3, the first meeting
Poly- mirror 4 and the second convergent mirror 5；It sets gradually along optical path as object lens 1, zoom mirror 2, compensating glass 3, the first convergent mirror 4 and the second meeting
Poly- mirror 5；Position of the mobile zoom mirror 2 between object lens 1 and compensating glass 3, moves on to B point and forms big visual field optical path, move on to A point and formed
Small field of view optical path；The optical system volume is 96mm × 90mm × 90mm.
The material of the object lens 1 is silicon, and the material of zoom mirror 2 is germanium, and the material of compensating glass 3 is silicon, the first convergent mirror 4
Material is germanium, and the material of the second convergent mirror 5 is silicon.
The parameter configuration of the object lens 1, zoom mirror 2, compensating glass 3, the first convergent mirror 4 and the second convergent mirror 5 are as follows:
Beneficial effect
The ultrashort two visual fields infrared optical system of one kind proposed by the present invention, including set gradually along optical path object lens 1, zoom
Mirror 2, assembles microscope group at compensating glass 3, and assembling microscope group includes convergent mirror 4 and convergent mirror 5, is moved forward and backward to be formed by zoom mirror 2 and neglect
Field optical path and big visual field optical path are reduced due to being realized the conversion and focusing compensation of two visual fields using the movement with a piece of lens
Movement mechanism in system, the remaining part in optical path is fixation member, and adjustment is simple, largely reduce system
Resetting difficulty.The axial two visual field infrared optical systems of ultrashort compact of the invention are using Polaroid configuration in no-mirror
Turn back realizes two visual field zooms of optical system in ultrashort system space, and optical system is small in size, light-weight, is suitble to hand-held
Formula application.
Detailed description of the invention
Fig. 1 is two visual field infrared optical system index paths of Optical devices of the invention
1- object lens, 2- zoom mirror, 3- compensating glass, the first convergent mirror of 4-, the second convergent mirror of 5-, 6- detector.
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
As shown in Figure 1, Optical devices of the invention include two visual field infrared optical systems, two visual field infrared optical system packets
Include object lens 1, zoom mirror 2, compensating glass 3, the first convergent mirror 4 and the second convergent mirror 5 being successively sequentially arranged along optical axis.In the second meeting
Poly- 5 rear end of mirror is equipped with detector 6, then one is placed in volume as in 96mm × 90mm × 90mm optical system.
In the present embodiment, detector is refrigeration mode infrared focal plane detector
Position of the mobile zoom mirror 2 between object lens 1 and compensating glass 3, constitutes big visual field or small field of view optical path, zoom mirror 2
It is small field of view when close to the location A of compensating glass 3, zoom mirror is in 3 middle part B location Shi Wei great visual field of object lens 1 and compensating glass.
The zoom mirror 2 can either realize visual field handoff functionality, also can be realized in -40 DEG C to+60 DEG C realizations focusing function
Can, the movement for zoom mirror 2 can be realized using a movement mechanism, reduce volume and weight.
The material of the object lens 1 is silicon, and the material of zoom mirror 2 is germanium, and the material of compensating glass 3 is silicon, the first convergent mirror 4
Material is germanium, and the material of the second convergent mirror 5 is silicon.Above-mentioned each optical module introduces four aspherical and diffraction surfaces altogether,
The effect for realizing aberration correction by less lens numbers, improving image quality.Design parameter and material are as shown in table 1.
1 optical system of table composition and parameter
The Optical devices of the present embodiment when in use, first detect target using big visual field optical path, at this moment pass through
Zoom mirror 2 is moved on to B point by axial movement, forms big visual field optical path, light is through excessive visual field optical path in refrigeration mode infrared focus plane
It is imaged on detector, then target is identified by small field of view optical path, zoom mirror 2 is moved on into A dot by moving axially
At small field of view optical path, light is imaged on the detector by small field of view optical path.
In the other embodiments of Optical devices of the invention, zoom microscope group, compensation microscope group, assembles microscope group at focusing microscope group
The quantity of lens can depend on actual need and be arranged.
The embodiment of two visual field infrared optical systems and two visual fields in the embodiment of above-mentioned Optical devices of the invention is red
The structure of outer optical system is completely the same, no longer repeats one by one herein.In addition, various two in the embodiment of above-mentioned Optical devices
The alternative of visual field infrared optical system is also applied for the embodiment of three visual field infrared optical systems of the invention.
Claims (1)
1. a kind of ultrashort two visual fields infrared optical system, it is characterised in that including object lens (1), zoom mirror (2), compensating glass (3), the
One convergent mirror (4) and the second convergent mirror (5)；It sets gradually along optical path as object lens (1), zoom mirror (2), compensating glass (3), the first meeting
Poly- mirror (4) and the second convergent mirror (5)；The position of mobile zoom mirror (2) between object lens (1) and compensating glass (3), moves on to B dot
At big visual field optical path, moves on to A point and form small field of view optical path；The optical system volume is 96mm × 90mm × 90mm；
The object lens (1), zoom mirror (2), compensating glass (3), the first convergent mirror (4) and the second convergent mirror (5) parameter configuration are as follows:
The material of the object lens (1) is silicon, and the material of zoom mirror (2) is germanium, and the material of compensating glass (3) is silicon, the first convergent mirror
(4) material is germanium, and the material of the second convergent mirror (5) is silicon.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094864.XA CN106646865B (en) | 2016-12-02 | 2016-12-02 | A kind of ultrashort two visual fields infrared optical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611094864.XA CN106646865B (en) | 2016-12-02 | 2016-12-02 | A kind of ultrashort two visual fields infrared optical system |
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| CN106646865A CN106646865A (en) | 2017-05-10 |
| CN106646865B true CN106646865B (en) | 2019-07-09 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005181774A (en) * | 2003-12-22 | 2005-07-07 | Fujinon Corp | Zoom lens |
| CN102269871A (en) * | 2011-07-15 | 2011-12-07 | 昆明物理研究所 | Bicolor dual-view field infrared imaging optical system |
| CN104267484A (en) * | 2014-02-20 | 2015-01-07 | 山东神戎电子股份有限公司 | Small size uncooled dual-field-of-view infrared optical system |
| CN105223679A (en) * | 2015-10-16 | 2016-01-06 | 西南技术物理研究所 | Object lens of large relative aperture near infrared altogether light path double-view field disappears heat difference optical imaging system |
| CN105301748A (en) * | 2015-12-04 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Double-wave-band three-field of view infrared optical system |
| CN205539681U (en) * | 2015-12-11 | 2016-08-31 | 三河市蓝思泰克光电科技有限公司 | Become multiple proportions long wave infrared continuous -zoom lens greatly |
-
2016
- 2016-12-02 CN CN201611094864.XA patent/CN106646865B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005181774A (en) * | 2003-12-22 | 2005-07-07 | Fujinon Corp | Zoom lens |
| CN102269871A (en) * | 2011-07-15 | 2011-12-07 | 昆明物理研究所 | Bicolor dual-view field infrared imaging optical system |
| CN104267484A (en) * | 2014-02-20 | 2015-01-07 | 山东神戎电子股份有限公司 | Small size uncooled dual-field-of-view infrared optical system |
| CN105223679A (en) * | 2015-10-16 | 2016-01-06 | 西南技术物理研究所 | Object lens of large relative aperture near infrared altogether light path double-view field disappears heat difference optical imaging system |
| CN105301748A (en) * | 2015-12-04 | 2016-02-03 | 中国航空工业集团公司洛阳电光设备研究所 | Double-wave-band three-field of view infrared optical system |
| CN205539681U (en) * | 2015-12-11 | 2016-08-31 | 三河市蓝思泰克光电科技有限公司 | Become multiple proportions long wave infrared continuous -zoom lens greatly |
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| CN106646865A (en) | 2017-05-10 |
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