CN110412756A - Non-refrigeration type long-wave infrared continuous zoom lens and adjusting method - Google Patents
Non-refrigeration type long-wave infrared continuous zoom lens and adjusting method Download PDFInfo
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- CN110412756A CN110412756A CN201910744968.8A CN201910744968A CN110412756A CN 110412756 A CN110412756 A CN 110412756A CN 201910744968 A CN201910744968 A CN 201910744968A CN 110412756 A CN110412756 A CN 110412756A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 24
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000571 coke Substances 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/173—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
-
- 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
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Abstract
The present invention relates to a kind of non-refrigeration type long-wave infrared continuous zoom lens and adjusting methods, including lens barrel, along light, incident direction is disposed with first fixed group of positive light coke from left to right in lens barrel, the zoom group of negative power, the compensation group of positive light coke, latter fixed group of positive light coke, the rear zoom group of negative power, the focusing group of positive light coke, fixed group is falcate germanium positive lens of a piece of convex surface towards object space before described, zoom group is a piece of concave concave germanium negative lens, compensation group is a piece of lenticular germanium positive lens, fixed group is falcate germanium positive lens of a piece of convex surface towards object side afterwards, zoom group is falcate germanium negative lens of a piece of concave surface towards image side afterwards, focusing group is falcate germanium positive lens of a piece of convex surface towards object side, the design of this lens construction is simple, it is compact, detection range is remote, low distortion, vibration resistance and impact.
Description
Technical field
The present invention relates to a kind of non-refrigeration type long-wave infrared continuous zoom lens and adjusting methods.
Background technique
With the fast development of science and technology, the continuous development of uncooled detector technology and increasingly mature, because long wave is red
There are many good characteristics, such as passive operation type for outer non-brake method optical system, will not be by the electronic interferences in place, good concealment；Figure
As intuitively, being easy to observe；Precision height etc. has obtained wide hair application in military and civilian field.In recent years, with infrared optics
The long term growth of technology and its continuous extension of application range, the demand to infrared continuous zooming optical system are increasingly enhanced.It is red
Outer continuous zooming optical system can continuously change system focal length in a certain range, and while changing visual field, image planes can
It is clear to keep stablizing, and it is elegant will not to generate image planes.
Current continuous vari-focus infrared lens, although having the function of continuous vari-focus, structure is complicated, weight weight, and volume is big,
It is affected by temperature greatly, region applicability is bad.
Summary of the invention
In view of the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of non-refrigeration type LONG WAVE INFRAREDs
Continuous magnification lens and adjusting method.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of non-refrigeration type LONG WAVE INFRARED continuous vari-focus
Camera lens, including lens barrel, lens barrel is interior, and along light, incident direction is disposed with first fixed group of positive light coke, negative light focus from left to right
The zoom group of degree, the compensation group of positive light coke, latter fixed group of positive light coke, the rear zoom group of negative power, positive light coke
Focusing group, fixed group is falcate germanium positive lens of a piece of convex surface towards object space before described, and zoom group is a piece of concave concave germanium
Negative lens, compensation group are a piece of lenticular germanium positive lens, and rear fixed group is that the falcate germanium of a piece of convex surface towards object side is just saturating
Mirror, rear zoom group are falcate germanium negative lens of a piece of concave surface towards image side, and focusing group is bent moon of a piece of convex surface towards object side
Shape germanium positive lens.
Further, the airspace between the preceding fixed group and zoom group is 21~78.8mm, zoom group and compensation
Airspace between group is 101.8~5.1mm, and compensation group and rear fixed group of airspace are 3.6~42.4mm, rear fixed
Airspace between group and rear zoom group is 13.45mm, and the airspace of rear zoom group and focusing group is 58.3mm.
Further, the lens barrel includes primary mirror seat, rear microscope base and focusing microscope base, and the lens barrel includes primary mirror seat, rear mirror
Seat, the leading portion inner wall of primary mirror seat are equipped with the preceding group of microscope base for group fixed before installing, and the middle section inner wall assembly of primary mirror seat is useful
In the zoom microscope base of installation zoom group, the back segment inner wall of primary mirror seat is equipped with the compensation microscope base for installing compensation group, primary mirror seat
Rear end be connected with rear microscope base, the back segment inner wall of rear microscope base is equipped with the focusing drawtube for installing focusing group, the primary mirror
Power zoom mechanism is installed on seat, electric focusing mechanism is installed on rear microscope base.
Further, preceding group of microscope base front end is equipped with pressing ring A, and sealing ring is housed between preceding group of microscope base and primary mirror seat.
Further, the power zoom mechanism includes the motor rack A being mounted on the upside of primary mirror seat middle section, A on motor rack A
Motor A is installed, the motor gear on the output shaft of motor A and the potentiometer gear being set on the potentiometer of motor side
Precision engagement, motor gear are engaged with the cam precision locked on the upside of preceding group of microscope base and through cam pressing ring is set to, are set on cam
Be equipped with front end, rear end is provided with cam guide pin, cam guide pin and the zoom that is set on zoom microscope base positioned at front end are mobile
Seat is connected, and zoom balladeur train, compensation balladeur train are equipped in preceding group of microscope base, and cam guide pin and the zoom Mobile base of front end are slidably matched,
Cam guide pin positioned at rear end is connected with the compensation Mobile base being set on compensation microscope base, compensates the cam of Mobile base and rear end
Guide pin is slidably matched.
Further, the electric focusing mechanism includes the motor rack B being mounted on the upside of rear microscope base middle-end, on motor rack B
Motor B is installed, the motor gear of motor B is engaged with the focusing ring precision for being placed on rear microscope base rear end periphery, set on focusing ring
It is equipped with focusing guide pin, focusing guide pin is installed on the focusing drawtube that inner wall is connected with rear microscope base microscope base.
A kind of adjusting method of non-refrigeration type long-wave infrared continuous zoom lens: motor A passes through motor gear band thereon
Moving cam rotation carries out optical system zoom to drive zoom group, the movement of compensation group, and motor B passes through motor gear thereon
It drives focusing ring rotation to drive the movement of focusing group, carries out optical system focusing.
Compared with prior art, the invention has the following advantages: structure design is simple, compact, detection range is remote, low
Distortion, vibration resistance and impact.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the schematic diagram of optical system of the camera lens；
Fig. 2 is the mechanical structure schematic diagram of the camera lens；
Fig. 3 is the mechanical structure side view of the camera lens；
Fig. 4 is the mechanical structure axonometric drawing of the camera lens.
In figure:
Fixed group eyeglass before A-；B- zoom group eyeglass；C- compensation group eyeglass；Fixed group eyeglass after D-；Zoom group eyeglass after E-；F-
Focusing group eyeglass；1- pressing ring A；2- sealing ring；3- primary mirror seat；4- steel ball；5- zoom balladeur train；6- compensates balladeur train；7- pressing ring D；8-
Rear group lens barrel；9- focusing ring；10- focusing drawtube；11- pressing ring F；12- detector connecting flange；13- pressing ring A；Mirror is organized before 14-
Seat；15 pressing ring B；16- zoom microscope base；17- cam guide pin；18- roller；19- roller gasket；20- cam；21- pressing ring C；22- every
Circle；23- cam pressing ring；24- retaining screw；25- focusing guide pin；26- focusing ring retaining ring；The general column of 38-；39- potentiometer A；40-
Potentiometer gear A；41- motor A；42- motor gear A；43- motor rack A；44- motor rack B；45- potentiometer gear B；46- becomes
Times switch frame；47- microswitch A；The general pan nail of 48-；49- focusing switch frame；50- microswitch B.
Specific embodiment
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make detailed
Carefully it is described as follows.
As shown in Figs 1-4, a kind of non-refrigeration type long-wave infrared continuous zoom lens, including lens barrel, in lens barrel along light from
From left to right incident direction be disposed with first fixed group of positive light coke, the zoom group of negative power, the compensation group of positive light coke,
Latter fixed group, the rear zoom group of negative power, the focusing group of positive light coke of positive light coke, fixed group is a piece of convex surface before described
Towards the falcate germanium positive lens of object space, zoom group is a piece of concave concave germanium negative lens, and compensation group is a piece of lenticular germanium
Positive lens, rear fixed group are falcate germanium positive lens of a piece of convex surface towards object side, and rear zoom group is a piece of concave surface towards image side
Falcate germanium negative lens, focusing group be falcate germanium positive lens of a piece of convex surface towards object side.
Further, the airspace between the preceding fixed group and zoom group is 21~78.8mm, zoom group and compensation
Airspace between group is 101.8~5.1mm, and compensation group and rear fixed group of airspace are 3.6~42.4mm, rear fixed
Airspace between group and rear zoom group is 13.45mm, and the airspace of rear zoom group and focusing group is 58.3mm.
In the present embodiment, the lens barrel include primary mirror seat, rear microscope base and focusing microscope base, the lens barrel include primary mirror seat,
Microscope base afterwards, the leading portion inner wall of primary mirror seat are equipped with the middle section inner wall assembly of primary mirror seat for preceding group of microscope base of group fixed before installing
There is the zoom microscope base for installing zoom group, the back segment inner wall of primary mirror seat is equipped with the compensation microscope base for installing compensation group, main
The rear end of microscope base is connected with rear microscope base, and the back segment inner wall of rear microscope base is equipped with the focusing drawtube for installing focusing group, described
Power zoom mechanism is installed on primary mirror seat, electric focusing mechanism is installed on rear microscope base.
In the present embodiment, preceding group of microscope base front end is equipped with pressing ring A, and sealing ring is housed between preceding group of microscope base and primary mirror seat,
To guarantee the air-tightness of structure.
In the present embodiment, the power zoom mechanism includes the motor rack A being mounted on the upside of primary mirror seat middle section, motor rack
The upper A of A is equipped with motor A, the motor gear on the output shaft of motor A and the potentiometer being set on the potentiometer of motor side
Gear precision engagement, potentiometer are mounted on motor rack A, motor gear and are set to preceding group of microscope base upside and lock through cam pressing ring
The engagement of cam precision, be provided with front end on cam, rear end is provided with cam guide pin, cam guide pin and setting positioned at front end
It is connected in the zoom Mobile base on zoom microscope base, zoom balladeur train, compensation balladeur train, the cam guide pin of front end is equipped in preceding group of microscope base
It being slidably matched with zoom Mobile base, the cam guide pin positioned at rear end is connected with the compensation Mobile base being set on compensation microscope base,
Compensation Mobile base and the cam guide pin of rear end are slidably matched.Motor rack A is equipped with microswitch in two extreme positions of cam
A is limited when cam rotates to both ends extreme position through microswitch A.
In the present embodiment, the electric focusing mechanism includes the motor rack B being mounted on the upside of rear microscope base middle-end, motor rack
Motor B is installed, the motor gear of motor B is engaged with the focusing ring precision for being placed on rear microscope base rear end periphery, on focusing ring on B
It is provided with focusing guide pin, focusing guide pin is installed on the focusing drawtube that inner wall is connected with rear microscope base microscope base, the leading portion of rear microscope base
Inner wall is equipped with the pressing ring D for group eyeglass fixed after fixation, is provided with spacer ring between compensation group eyeglass and rear fixed group eyeglass,
The rear end inner wall of microscope base is equipped with the focusing drawtube of fixed focusing group eyeglass afterwards, and focusing drawtube passes through focusing guide pin and rear group mirror
Cylinder, focusing cam are connected.Motor rack B is equipped with microswitch B in two extreme positions of focusing ring, and focusing ring rotates to two
It is limited when holding extreme position through microswitch B.
In the present embodiment, the preceding fixed group of air between zoom group away from pass through be placed in front of fixed group eyeglass and preceding group of mirror
Adjustment gasket between seat is adjusted.
In the present embodiment, preceding group of microscope base, which is used, organizes steel alloy similar in the glass material of eyeglass with preceding fixation, to guarantee
The stress influence that microscope base is not expanded with heat and contract with cold under working temperature environment by material, the alloy material that preceding group of microscope base uses easily occur
Corrosion is fixed admittedly lacquer spraying technique is selected to state preceding group of microscope base to prevent it from getting rusty and be directly placed into primary mirror seat by pressing ring A, due to
Body tube is without friction, it is ensured that group microscope base paint layer is complete before described, is not susceptible to corrode.
In the present embodiment, zoom group eyeglass is installed in zoom microscope base and by pressing ring B and is fixed, and zoom microscope base passes through
Screw is fixed on zoom balladeur train, zoom group adjusted by the adjustment gasket between zoom microscope base and zoom balladeur train zoom group with
Air between first fixed group, zoom group and compensation group is away from zoom balladeur train is connect by guide pin with primary mirror seat and cam, compensation group
It is mounted on compensation balladeur train and is fixed by pressing ring C, compensation balladeur train is connect by guide pin with primary mirror seat and cam.
A kind of adjusting method of non-refrigeration type long-wave infrared continuous zoom lens: motor A passes through motor gear band thereon
Moving cam rotation carries out optical system zoom to drive zoom group, the movement of compensation group, and motor B passes through motor gear thereon
It drives focusing ring rotation to drive the movement of focusing group, carries out optical system focusing.
In the present embodiment, following optical index: focal length f ' has been reached by the optical texture that above-mentioned lens set is constituted:
38mm-190mm；Relative aperture F:1.0 ~ 1.2；Field angle: 16.7 ° X12.5 ° ~ 3.5 ° X2.6 °；Resolution ratio: can be with 640*512
17 μm of detector video camera adaptations；Total length of light path ∑≤286mm, optics rear cut-off distance l ' >=48.37mm；Applicable spectral line range: 8 μm
~12μm。
In the present embodiment, the optical glass material of high refraction, low dispersion is selected to correct light by designing and optimizing
Learn camera lens various aberrations, make camera lens realize high-resolution, object lens of large relative aperture, low distortion the advantages that；Distort it is smaller, 1% with
Under, there is better control relative to old structural aberration；In optical design, by the optimization design to cam curve, have
The optical axis drift in zooming procedure is controlled to effect, image quality is excellent in full focal length segment limit.
Each eyeglass design parameter is as follows:
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with repair
Decorations, are all covered by the present invention.
Claims (7)
1. a kind of non-refrigeration type long-wave infrared continuous zoom lens, it is characterised in that: including lens barrel, along light from left-hand in lens barrel
Right incident direction is disposed with first fixed group of positive light coke, the zoom group of negative power, the compensation group of positive light coke, positive light
Latter fixed group, the rear zoom group of negative power, the focusing group of positive light coke of focal power, fixed group is a piece of convex surface direction before described
The falcate germanium positive lens of object space, zoom group are a piece of concave concave germanium negative lens, and compensation group is that a piece of lenticular germanium is just saturating
Mirror, rear fixed group are falcate germanium positive lens of a piece of convex surface towards object side, and rear zoom group is a piece of concave surface towards the curved of image side
Month shape germanium negative lens, focusing group are falcate germanium positive lens of a piece of convex surface towards object side.
2. non-refrigeration type long-wave infrared continuous zoom lens according to claim 1, it is characterised in that: fixed group before described
Airspace between zoom group is 21~78.8mm, the airspace between zoom group and compensation group is 101.8~
The airspace of 5.1mm, compensation group and rear fixed group is 3.6~42.4mm, between the air between rear fixed group and rear zoom group
Every being 13.45mm, the airspace of rear zoom group and focusing group is 58.3mm.
3. non-refrigeration type long-wave infrared continuous zoom lens according to claim 1, it is characterised in that: the lens barrel includes
Primary mirror seat, rear microscope base and focusing microscope base, the lens barrel includes primary mirror seat, rear microscope base, and the leading portion inner wall of primary mirror seat, which is equipped with, to be used for
Preceding group of microscope base of fixed group, the middle section inner wall of primary mirror seat are equipped with the zoom microscope base for installing zoom group, primary mirror seat before installation
Back segment inner wall be equipped with the compensation microscope base for installing compensation group, the rear end of primary mirror seat is connected with rear microscope base, rear microscope base
Back segment inner wall is equipped with the focusing drawtube for installing focusing group, installation power zoom mechanism on the primary mirror seat, on rear microscope base
Electric focusing mechanism is installed.
4. non-refrigeration type long-wave infrared continuous zoom lens according to claim 3, it is characterised in that: preceding group of microscope base front end
Pressing ring A is installed, sealing ring is housed between preceding group of microscope base and primary mirror seat.
5. non-refrigeration type long-wave infrared continuous zoom lens according to claim 3, it is characterised in that: the power zoom
Mechanism includes the motor rack A being mounted on the upside of primary mirror seat middle section, and A is equipped with motor A on motor rack A, on the output shaft of motor A
Motor gear engaged with the potentiometer gear precision on the potentiometer for being set to motor side, motor gear and be set to preceding group
The cam precision engagement locked on the upside of microscope base and through cam pressing ring, is provided with front end on cam, rear end is provided with cam guide pin,
Cam guide pin positioned at front end is connected with the zoom Mobile base being set on zoom microscope base, and it is sliding that zoom is equipped in preceding group of microscope base
Frame, compensation balladeur train, cam guide pin and the zoom Mobile base of front end be slidably matched, the cam guide pin positioned at rear end be set to compensation
Compensation Mobile base on microscope base is connected, and the cam guide pin for compensating Mobile base and rear end is slidably matched.
6. non-refrigeration type long-wave infrared continuous zoom lens according to claim 5, it is characterised in that: the electromotion focusing
Mechanism includes the motor rack B being mounted on the upside of rear microscope base middle-end, is equipped with motor B on motor rack B, the motor gear of motor B with
It is placed on the focusing ring precision engagement of rear microscope base rear end periphery, focusing guide pin is provided on focusing ring, focusing guide pin is installed on interior
On the focusing drawtube that wall is connected with rear microscope base microscope base.
7. a kind of adjusting method of non-refrigeration type long-wave infrared continuous zoom lens, which is characterized in that using such as claim 6 institute
The non-refrigeration type long-wave infrared continuous zoom lens stated, it is characterised in that: motor A is revolved by motor gear band moving cam thereon
Turn, to drive zoom group, the movement of compensation group, carries out optical system zoom, motor B drives focusing by motor gear thereon
Ring rotation drives the movement of focusing group, carries out optical system focusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744968.8A CN110412756A (en) | 2019-08-13 | 2019-08-13 | Non-refrigeration type long-wave infrared continuous zoom lens and adjusting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910744968.8A CN110412756A (en) | 2019-08-13 | 2019-08-13 | Non-refrigeration type long-wave infrared continuous zoom lens and adjusting method |
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| Publication Number | Publication Date |
|---|---|
| CN110412756A true CN110412756A (en) | 2019-11-05 |
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|---|---|---|---|
| CN201910744968.8A Pending CN110412756A (en) | 2019-08-13 | 2019-08-13 | Non-refrigeration type long-wave infrared continuous zoom lens and adjusting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110989151A (en) * | 2020-01-03 | 2020-04-10 | 福建福光天瞳光学有限公司 | Uncooled long-wave infrared detachable sealing structure continuous zoom lens and working method thereof |
| CN111025608A (en) * | 2019-12-05 | 2020-04-17 | 湖北久之洋红外系统股份有限公司 | Ultra-compact continuous zooming medium-wave infrared optical system |
| CN112346228A (en) * | 2020-11-23 | 2021-02-09 | 湖北久之洋红外系统股份有限公司 | Infrared continuous zooming optical system based on combined zooming and ultra-large zoom ratio |
| CN115128786A (en) * | 2022-06-29 | 2022-09-30 | 凯迈（洛阳）测控有限公司 | Large-zoom-ratio high-resolution long-wave infrared continuous zooming optical system |
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| CN210514769U (en) * | 2019-08-13 | 2020-05-12 | 福建福光天瞳光学有限公司 | Non-refrigeration type long-wave infrared continuous zoom lens |
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| CN111025608A (en) * | 2019-12-05 | 2020-04-17 | 湖北久之洋红外系统股份有限公司 | Ultra-compact continuous zooming medium-wave infrared optical system |
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| CN112346228A (en) * | 2020-11-23 | 2021-02-09 | 湖北久之洋红外系统股份有限公司 | Infrared continuous zooming optical system based on combined zooming and ultra-large zoom ratio |
| CN112346228B (en) * | 2020-11-23 | 2024-01-26 | 湖北久之洋红外系统股份有限公司 | Infrared continuous zooming optical system based on composite zooming super-large zoom ratio |
| CN115128786A (en) * | 2022-06-29 | 2022-09-30 | 凯迈（洛阳）测控有限公司 | Large-zoom-ratio high-resolution long-wave infrared continuous zooming optical system |
| CN115128786B (en) * | 2022-06-29 | 2023-06-02 | 凯迈（洛阳）测控有限公司 | Large-zoom-ratio high-resolution long-wave infrared continuous zooming optical system |
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