CN205899118U - Infrared continuous -zoom lens of hypermutation multiple proportions medium wave - Google Patents
Infrared continuous -zoom lens of hypermutation multiple proportions medium wave Download PDFInfo
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- CN205899118U CN205899118U CN201620790938.2U CN201620790938U CN205899118U CN 205899118 U CN205899118 U CN 205899118U CN 201620790938 U CN201620790938 U CN 201620790938U CN 205899118 U CN205899118 U CN 205899118U
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Abstract
The utility model relates to an infrared continuous -zoom lens of hypermutation multiple proportions medium wave, include that B, the C of compensation group, the D of after -fixing group are doubly organized in the preceding fixed A of group, the change of following the light incidence direction and setting gradually, E is organized to the speculum and F is organized in the secondary imaging, does the E of speculum group contain the speculum E who follows the light incidence direction and set gradually 1 with speculum E 2, does the F of secondary imaging group contain the positive lens F who follows the light incidence direction and set gradually 1, negative lens F 2 and positive lens F 3. The utility model discloses structural design is simple, compact, has the hypermutation multiple proportions, becomes to compensate doubly that the stroke is short, detection range characteristics far away, and the rational distribution focal power, the mechanical type continuous zooming mode that adopts burden group to become doubly, just organizing the compensation has been controlled effectively and has been zoomed the drift of in -process optical axis, and the image quality is good.
Description
Technical field
The utility model is related to a kind of high zoom ratio medium wave infrared continuous zoom lens.
Background technology
Infrared continuous zooming optical system can detect, position and continuously follow the tracks of the infra-red radiation of target object, and passes through
The means such as opto-electronic conversion, signal transacting, image procossing, the infrared radiation distribution image of target object is converted into visible light video
Image.System focal can continuously be changed within the specific limits, while changing visual field, image planes are stably clear, and mesh will not occur
The problem that mark is lost, so search target in big visual field can be first passed through, after switch to small field of view, accurate observation target, therefore it should
Increasingly strengthened with demand, main inclusion forward sight investigation, sighting system, acquisition and tracking system and civilian safety-protection system etc..At present
The common infrared zoom system, pancreatic system of high zoom ratio common two grades or third gear zoom although structure is simply easily achieved, but in switching
During be possible to cause objective fuzzy or loss.Part continuous vari-focus system, achievable continuous vari-focus, but zoom is smaller,
Common 3 ~ 5 times in the majority it is impossible to meet big visual field, high-resolution demand.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of high zoom ratio medium wave
Infrared continuous zoom lens, not only reasonable in design, and also image quality is high, spatial resolution high.
In order to solve above-mentioned technical problem, the technical solution of the utility model is: a kind of high zoom ratio medium-wave infrared is continuous
Zoom lens, including the front fixing group a setting gradually along light incident direction, zoom group b, compensation group c, afterwards fixing group d, reflection
Microscope group e and secondary imaging group f, described speculum group e comprises speculum e-1 and the reflection setting gradually along light incident direction
Mirror e-2, described secondary imaging group f comprises positive lens f-1, the negative lens f-2 setting gradually along light incident direction and just saturating
Mirror f-3.
Preferably, the airspace between described front fixing group a and zoom group b is 45.7 ~ 96.5mm, described zoom group b
Airspace and compensation group c between is 17.6 ~ 91.4mm, and the airspace between described compensation group c and afterwards fixing group d is
7.5 ~ 30.6mm, described after airspace between fixing group d and speculum group e be 68.5mm, described speculum group e with secondary
Airspace between imaging group f is 17mm, between the air between the speculum e-1 in described speculum group e and speculum e-2
It is divided into 75mm, the airspace between the positive lens f-1 in described secondary imaging group f and negative lens f-2 is 8.2mm, described two
Airspace between negative lens f-2 in secondary imaging group f and positive lens f-3 is 1.5mm.
Preferably, described front fixing group a comprises positive lens a, front lens barrel and positive lens a pressure in order to install positive lens a
Circle, positive lens a is arranged in front lens barrel described positive lens a trim ring.
Preferably, described zoom group b comprises negative lens b, zoom lens barrel and negative lens b pressure in order to install negative lens b
Circle, negative lens b is arranged in zoom lens barrel described negative lens b trim ring, is arranged with and threadeds with it outside described zoom lens barrel
Zoom balladeur train, described compensation group c comprises positive lens c, compensation lens barrel and positive lens c trim ring in order to install positive lens c, institute
State positive lens c trim ring positive lens c is arranged in compensation lens barrel, described compensation lens barrel overcoat is provided with the compensation threadeded with it
Balladeur train, described zoom balladeur train is installed in body tube and is all slidably matched with it with compensating balladeur train, through becoming on described body tube
Times small electromotor support is provided with zoom small electromotor and potentiometer, and described body tube is accurate through front-seat accurate steel balls, heel row
Steel ball and zoom compensate cam trim ring and are provided with zoom compensation cam, described front row accurate steel balls, heel row accurate steel balls, cam
Trim ring and zoom compensate cam and form rolling bearing structure, and described zoom compensates and is evenly distributed with three zooms compensation on cam
Curved groove, described zoom group b compensates cam with zoom respectively through zoom guide pin, the compensated guide pin of compensation group c and is connected, described change
The gear that the gear of times small electromotor compensates cam with the gear of potentiometer and zoom respectively is meshed, when described zoom compensates electricity
When positive and negative rotary motion made by the rotor of machine, the rotor of described potentiometer and zoom is made to compensate cam synchronous axial system, in described zoom
In the presence of curved groove, described zoom group b and compensation group c all do tandem motion.
Preferably, described rear fixing group d comprises negative lens d, focusing drawtube and negative lens d in order to install negative lens d
Trim ring, negative lens d is arranged in focusing drawtube described negative lens d trim ring, is arranged with its screw thread even outside described focusing drawtube
The focusing drum connecing, is arranged with the focusing mount being connected with it through focusing guide pin outside described focusing drum, through focusing limit on described focusing mount
Position support is provided with focusing limit switch, and described focusing mount is provided with focusing motor, described focusing mount through focusing electric machine support
On through front-seat accurate steel balls, heel row accurate steel balls and cam trim ring, focusing cam is installed, described front row accurate steel balls, heel row
Accurate steel balls, focusing cam trim ring and focusing cam form rolling bearing structure, and being distributed with two on described focusing cam is in
180 straight line skewed slot, the gear of described focusing motor is meshed with the gear on focusing cam, and described focusing motor powers up rotation
Turn thus driving focusing cam to rotate, in the presence of described straight line skewed slot, described rear fixing group d does tandem motion.
Preferably, the reflected mirror e-1 trim ring of described speculum e-1 is arranged in speculum e-1 lens barrel, described speculum e-
2 reflected mirror e-2 trim rings are arranged in speculum e-2 lens barrel.
Preferably, described positive lens f-1 is arranged on secondary imaging seat through positive lens f-1 trim ring, described negative lens f-2 warp
Negative lens f-2 trim ring is arranged on secondary imaging seat, and described positive lens f-3 is arranged on shutter through secondary imaging seat and compensates in seat,
Described secondary imaging group f also comprises detector and corrects electric machine assembly, and the motor of electric machine assembly corrected by described detector and shutter is mended
Repay baffle plate to engage each other through gear.
Preferably, described positive lens a and negative lens b adopts the germanium material of high index of refraction, and described positive lens c adopts low dispersion
Silicon materials.
Preferably, also include thermal imaging system frame and detect cylinder.
Compared with prior art, the utility model has the advantages that
(1) focal power of the utility model reasonable distribution each group, in front fixing group a, zoom group b, compensation group c, fixes afterwards
In group d and secondary imaging group f, adopt five Aspherical corrector aberrations altogether, make camera lens reach high imaging quality, compact conformation, change
The advantages of compensation stroke is short again；
(2) the utility model realizes temperature-compensating and distance away from compensation by rear fixing group d movement, to ensure camera lens in height
Use requirement under gentle low temperature environment；
(3) the utility model, by optimizing and revising the cold emission picture of system, makes mirror-reflection " ghost image " and cold emission " black
Spot " is away from detector image planes；
(4) the utility model passes through two panels speculum by systems fold so that system bulk compact；
(5) the utility model, by the optimization design to cam curve, has efficiently controlled the optical axis drift in zooming procedure
Move, in full focal length segment limit, image quality is excellent；
(6) all adopt accurate steel ball cooperation between cam of the present utility model and microscope base, form rolling bearing structure, reduce and become
Resistance that is burnt, focusing on；
(7) the utility model structure design is simple, reasonable, compact, using zoom balladeur train, compensates sliding framework structure, vibration resistance,
Impact resistance, good stability；
(8) the uniform curved groove of three circumferences of the zoom compensation cam in the utility model carries out zoom compensation, improves mirror
The resistance to vibration of head and stability.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Brief description
Fig. 1 is the optical system schematic diagram of the utility model embodiment.
Fig. 2 is the internal structure schematic diagram of the utility model embodiment.
Fig. 3 is the local structure schematic diagram of Fig. 2 of the utility model embodiment.
Fig. 4 is the external structure schematic diagram of the utility model embodiment.
Fig. 5 is the first organigram of the utility model embodiment zoom cam.
Fig. 6 is the second organigram of the utility model embodiment zoom cam.
In figure: 1- positive lens a, lens barrel before 2-, 3- positive lens a trim ring, 4- negative lens b, 5- zoom lens barrel, 6- negative lens b
Trim ring, 7- zoom balladeur train, 8- positive lens c, 9- compensate lens barrel, 10- positive lens c trim ring, and 11- compensates balladeur train, 12- body tube, 13-
Zoom small electromotor, 14- potentiometer, 15- zoom compensates cam trim ring, and 16- zoom compensates cam, 17- zoom guide pin, and 18- mends
Repay guide pin, 19- negative lens d, 20- focusing drawtube, 21- negative lens d trim ring, 22- focusing drum, 23- focuses guide pin, 24- focusing mount,
25- focusing motor, 26- focusing cam trim ring, 27- focusing cam, 28- speculum e-1,29- speculum e-1 trim ring, 30- reflects
Mirror e-1 lens barrel, 31- speculum e-2,32- speculum e-2 trim ring, 33- speculum e-2 lens barrel, 34- positive lens f-1,35- are just saturating
Mirror f-1 trim ring, 36- secondary imaging seat, 37- negative lens f-2,38- negative lens f-2 trim ring, 39- positive lens f-3,40- shutter is mended
Repay seat, electric machine assembly corrected by 41- detector, 42- shutter compensates baffle plate, 43- thermal imaging system frame, and 44- detects cylinder, and 45- zoom is spacing
Assembly, 46- focusing limit assembly.
Specific embodiment
It is that features described above of the present utility model and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing,
It is described in detail below.
As shown in Fig. 1 ~ 6, a kind of high zoom ratio medium wave infrared continuous zoom lens, set successively including along light incident direction
A, zoom group b, compensation group c, afterwards fixing group d, speculum group e and secondary imaging group f, described speculum group are organized in the front fixation put
E comprises the speculum e-1(28 setting gradually along light incident direction) and speculum e-2(31), described secondary imaging group f comprises
The positive lens f-1(34 setting gradually along light incident direction), negative lens f-2(37) and positive lens f-3(39).
In the utility model embodiment, the airspace between described front fixing group a and zoom group b is 45.7 ~
96.5mm, the airspace between described zoom group b and compensation group c is 17.6 ~ 91.4mm, and described compensation group c organizes d with rear fixation
Between airspace be 7.5 ~ 30.6mm, described after airspace between fixing group d and speculum group e be 68.5mm, institute
Stating the airspace between speculum group e and secondary imaging group f is 17mm, the speculum e-1(28 in described speculum group e) with
Speculum e-2(31) between airspace be 75mm, the positive lens f-1(34 in described secondary imaging group f) with negative lens f-2
(37) airspace between is 8.2mm, the negative lens f-2(37 in described secondary imaging group f) and positive lens f-3(39) between
Airspace be 1.5mm.
In the utility model embodiment, described front fixing group a comprises positive lens a(1), in order to install positive lens a(1)
Front lens barrel 2 and positive lens a trim ring 3, described positive lens a trim ring 3 is by positive lens a(1) be arranged in front lens barrel 2.
In the utility model embodiment, described zoom group b comprises negative lens b(4), in order to install negative lens b(4) change
Times lens barrel 5 and negative lens b trim ring 6, described negative lens b trim ring 6 is by negative lens b(4) be arranged in zoom lens barrel 5, described change
Be arranged with, outside times lens barrel 5, the zoom balladeur train 7 threadeded with it, described compensation group c comprises positive lens c(8), just saturating in order to install
Mirror c(8) compensation lens barrel 9 and positive lens c trim ring 10, described positive lens c trim ring 10 is by positive lens c(8) be arranged on compensating glass
In cylinder 9, outside described compensation lens barrel 9, it is arranged with the compensation balladeur train 11 threadeded with it, described zoom balladeur train 7 and compensation balladeur train 11
It is installed in body tube 12 and is all slidably matched with it, described body tube 12 is provided with zoom through zoom small electromotor support
Small electromotor 13 and potentiometer 14, described body tube 12 compensates convex through front-seat accurate steel balls, heel row accurate steel balls and zoom
Wheel trim ring 15 is provided with zoom and compensates cam 16, and described front row accurate steel balls, heel row accurate steel balls, cam trim ring and zoom are mended
Repay cam 16 and form rolling bearing structure, described zoom compensates and is evenly distributed with three zoom compensated curve grooves, institute on cam 16
State zoom group b to be connected with zoom compensation cam 16 respectively through zoom guide pin 17, the compensated guide pin of compensation group c 18, described zoom
The gear of small electromotor 13 is meshed with the gear of potentiometer 14 and the gear of zoom compensation cam 16 respectively, when described zoom is mended
When repaying the rotor of motor 13 and making positive and negative rotary motion, the rotor of described potentiometer 14 and zoom is made to compensate cam 16 synchronous axial system,
In the presence of described zoom curved groove, described zoom group b and compensation group c all do tandem motion.
In the utility model embodiment, described after fixing group d comprise negative lens d(19), in order to install negative lens d(19)
Focusing drawtube 20 and negative lens d trim ring 21, described negative lens d trim ring 21 is by negative lens d(19) be arranged on focusing drawtube 20
Interior, it is arranged with the focusing drum 22 threadeded with it outside described focusing drawtube 20, be arranged with it through adjusting outside described focusing drum 22
The focusing mount 24 that burnt guide pin 23 connects, described focusing mount 24 is provided with focusing limit switch, described tune through focusing limiting bracket
Through focusing electric machine support, focusing motor 25 is installed on burnt seat 24, accurate through front-seat accurate steel balls, heel row on described focusing mount 24
Steel ball and focusing cam trim ring 26 are provided with focusing cam 27, described front row accurate steel balls, heel row accurate steel balls, focusing cam
Trim ring 26 and focusing cam 27 form rolling bearing structure, and straight line that two be in 180 is distributed with described focusing cam 27
Skewed slot, the gear of described focusing motor 25 is meshed with the gear on focusing cam 27, described focusing motor 25 power up rotation from
And drive focusing cam 27 to rotate, in the presence of described straight line skewed slot, described rear fixing group d does tandem motion.
In the utility model embodiment, described speculum e-1(28) reflected mirror e-1 trim ring 29 is arranged on speculum e-
In 1 lens barrel 30, described speculum e-2(31) reflected mirror e-2 trim ring 32 is arranged in speculum e-2 lens barrel 33.
In the utility model embodiment, described positive lens f-1(34) it is arranged on secondary imaging through positive lens f-1 trim ring 35
On seat 36, described negative lens f-2(37) it is arranged on secondary imaging seat 36 through negative lens f-2 trim ring 38, described positive lens f-3
(39) it is arranged on shutter through secondary imaging seat 36 and compensates in seat 40, described secondary imaging group f also comprises detector and corrects group of motors
Part 41, the motor of electric machine assembly 41 corrected by described detector and shutter compensates baffle plate 42 and engages each other through gear.
In the utility model embodiment, described positive lens a(1) with negative lens b(4) using high index of refraction germanium material,
Described positive lens c(8) using low dispersion silicon materials.
In the utility model embodiment, also include thermal imaging system frame 43 and detect cylinder 44；Each machine components simultaneously above-mentioned
Between attachment screw be provided with standard spring washer retaining, at attachment screw all put note shellac it is ensured that part is direct coupled
Fixing, improves the overall vibration resistance of camera lens and impact property.
In the utility model embodiment, also include zoom limit assembly 45 and focusing limit assembly 46.
In the utility model embodiment, the utility model has reached following optical index:
Service band: 3.7 μm ~ 4.8 μm；
Focal length f ': 33 ~ 500mm；
Detector: 320 × 256,30 μm of medium-wave infrared refrigeration mode；
The angle of visual field: 16.6 ° × 13.3 ° ~ 1.1 ° × 0.88 °；
Relative aperture d/ f ': 1/4；
Optics volume after folding: 259mm × 130mm × 159mm(length × width × height).
The utility model is not limited to above-mentioned preferred forms, and anyone can obtain under enlightenment of the present utility model
Go out other various forms of high zoom ratio medium wave infrared continuous zoom lens.All done according to the utility model claim
Impartial change and modification, all should belong to covering scope of the present utility model.
Claims (9)
1. a kind of high zoom ratio medium wave infrared continuous zoom lens it is characterised in that: include setting gradually along light incident direction
Front fixing group a, zoom group b, compensation group c, afterwards fixing group d, speculum group e and secondary imaging group f, described speculum group e
Comprise the speculum e-1 and speculum e-2 setting gradually along light incident direction, described secondary imaging group f comprises to enter along light
Penetrate positive lens f-1, negative lens f-2 and the positive lens f-3 that direction sets gradually.
2. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described first fixing group
Airspace between a and zoom group b is 45.7 ~ 96.5mm, and the airspace between described zoom group b and compensation group c is
17.6 ~ 91.4mm, the airspace between described compensation group c and afterwards fixing group d is 7.5 ~ 30.6mm, described after fixing group d with
Airspace between speculum group e is 68.5mm, and the airspace between described speculum group e and secondary imaging group f is
17mm, the airspace between the speculum e-1 in described speculum group e and speculum e-2 is 75mm, described secondary imaging group
Airspace between positive lens f-1 in f and negative lens f-2 be 8.2mm, the negative lens f-2 in described secondary imaging group f with
Airspace between positive lens f-3 is 1.5mm.
3. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described first fixing group
A comprises positive lens a, front lens barrel and positive lens a trim ring in order to install positive lens a, and described positive lens a trim ring is by positive lens a
It is arranged in front lens barrel.
4. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described zoom group b
Comprise negative lens b, zoom lens barrel and negative lens b trim ring in order to install negative lens b, described negative lens b trim ring is by negative lens b
It is arranged in zoom lens barrel, outside described zoom lens barrel, is arranged with the zoom balladeur train threadeded with it, described compensation group c just comprises
Lens c, compensation lens barrel and positive lens c trim ring in order to install positive lens c, positive lens c is arranged on by described positive lens c trim ring
Compensate in lens barrel, described compensation lens barrel overcoat is provided with the compensation balladeur train threadeded with it, described zoom balladeur train and compensation balladeur train
It is installed in body tube and is all slidably matched with it, described body tube is provided with zoom through zoom small electromotor support and compensates
Motor and potentiometer, described body tube compensates cam trim ring through front-seat accurate steel balls, heel row accurate steel balls and zoom and installs
Zoom is had to compensate cam, described front row accurate steel balls, heel row accurate steel balls, cam trim ring and zoom compensate cam and form rolling
Bearing arrangement, described zoom compensates and is evenly distributed with three zoom compensated curve grooves on cam, and described zoom group b is led through zoom
Nail, the compensated guide pin of compensation group c compensate cam with zoom respectively and are connected, the gear of described zoom small electromotor respectively with current potential
The gear of the gear of device and zoom compensation cam is meshed, when positive and negative rotary motion made by the rotor of described zoom small electromotor,
The rotor of described potentiometer and zoom is made to compensate cam synchronous axial system, in the presence of described zoom curved groove, described zoom group b
All do tandem motion with compensation group c.
5. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: fixing group after described
D comprises negative lens d, focusing drawtube and negative lens d trim ring in order to install negative lens d, and described negative lens d trim ring is by negative lens
D is arranged in focusing drawtube, is arranged with the focusing drum threadeded with it, is arranged with outside described focusing drum outside described focusing drawtube
The focusing mount being connected through focusing guide pin with it, described focusing mount is provided with focusing limit switch through focusing limiting bracket, described
Through focusing electric machine support, focusing motor is installed on focusing mount, through front-seat accurate steel balls, heel row accurate steel balls on described focusing mount
And cam trim ring is provided with focusing cam, described front row accurate steel balls, heel row accurate steel balls, focusing cam trim ring and focusing
Cam forms rolling bearing structure, and straight line skewed slot that two be in 180 is distributed with described focusing cam, described focusing motor
Gear is meshed with the gear on focusing cam, and described focusing motor powers up rotation thus driving focusing cam to rotate, described
In the presence of straight line skewed slot, described rear fixing group d does tandem motion.
6. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described speculum e-
1 reflected mirror e-1 trim ring is arranged in speculum e-1 lens barrel, and the reflected mirror e-2 trim ring of described speculum e-2 is arranged on reflection
In mirror e-2 lens barrel.
7. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described positive lens f-
1 is arranged on secondary imaging seat through positive lens f-1 trim ring, and described negative lens f-2 is arranged on secondary imaging through negative lens f-2 trim ring
On seat, described positive lens f-3 is arranged on shutter through secondary imaging seat and compensates in seat, and described secondary imaging group f also comprises detector
Correct electric machine assembly, the motor of electric machine assembly corrected by described detector and shutter compensates baffle plate and engages each other through gear.
8. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: described positive lens a
Adopt the germanium material of high index of refraction with negative lens b, described positive lens c adopts the silicon materials of low dispersion.
9. high zoom ratio medium wave infrared continuous zoom lens according to claim 1 it is characterised in that: also include thermal imaging system
Frame and detection cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790938.2U CN205899118U (en) | 2016-07-26 | 2016-07-26 | Infrared continuous -zoom lens of hypermutation multiple proportions medium wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790938.2U CN205899118U (en) | 2016-07-26 | 2016-07-26 | Infrared continuous -zoom lens of hypermutation multiple proportions medium wave |
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| Publication Number | Publication Date |
|---|---|
| CN205899118U true CN205899118U (en) | 2017-01-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790938.2U Withdrawn - After Issue CN205899118U (en) | 2016-07-26 | 2016-07-26 | Infrared continuous -zoom lens of hypermutation multiple proportions medium wave |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054363A (en) * | 2016-07-26 | 2016-10-26 | 福建福光股份有限公司 | High zoom ratio medium wave infrared continuous zoom lens and its working method |
| CN107991763A (en) * | 2018-01-16 | 2018-05-04 | 山东神戎电子股份有限公司 | A kind of high definition long-focus LONG WAVE INFRARED camera lens |
| CN109445061A (en) * | 2018-12-21 | 2019-03-08 | 嘉兴中润光学科技有限公司 | Zoom lens and method |
-
2016
- 2016-07-26 CN CN201620790938.2U patent/CN205899118U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054363A (en) * | 2016-07-26 | 2016-10-26 | 福建福光股份有限公司 | High zoom ratio medium wave infrared continuous zoom lens and its working method |
| CN106054363B (en) * | 2016-07-26 | 2018-06-15 | 福建福光股份有限公司 | High zoom ratio medium wave infrared continuous zoom lens and its method of work |
| CN107991763A (en) * | 2018-01-16 | 2018-05-04 | 山东神戎电子股份有限公司 | A kind of high definition long-focus LONG WAVE INFRARED camera lens |
| CN107991763B (en) * | 2018-01-16 | 2020-08-11 | 山东神戎电子股份有限公司 | High-definition long-focus long-wave infrared lens |
| CN109445061A (en) * | 2018-12-21 | 2019-03-08 | 嘉兴中润光学科技有限公司 | Zoom lens and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170118 Effective date of abandoning: 20180615 |
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| AV01 | Patent right actively abandoned |