CN205263387U - Infrared continuous zooming optical system of compact medium wave and camera lens thereof - Google Patents
Infrared continuous zooming optical system of compact medium wave and camera lens thereof Download PDFInfo
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- CN205263387U CN205263387U CN201521028367.0U CN201521028367U CN205263387U CN 205263387 U CN205263387 U CN 205263387U CN 201521028367 U CN201521028367 U CN 201521028367U CN 205263387 U CN205263387 U CN 205263387U
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Abstract
The utility model relates to a live tracking and measuring infrared continuous zooming optical system of compact medium wave and camera lens thereof belongs to the camera lens field, include along light from the preceding fixed arrangement of mirrors piece, change times arrangement of mirrors piece, compensation arrangement of mirrors piece and the after -fixing arrangement of mirrors piece that go to the back incident direction to set gradually, the first speculum that is used for light to turn to the downside is put to the back skew of after -fixing arrangement of mirrors piece, first speculum downside is provided with first positive lens and negative lens, the skew is put and is used for light to turn the the second mirror to the front side under the negative lens, the second mirror's front side still is provided with the second positive lens. This optical system and camera lens have that high image quality, high spatial resolution, compact structure, change reach doubly that the compensation stroke is short, the detection range is far away, light in weight and resistant vibration and the performance of strikeing.
Description
Technical field
The utility model relates to a kind of compact Middle infrared continuous zoom optical system and camera lens thereof of following the tracks of and measuring for fact, belongs to camera lens field.
Background technology
Infrared imaging system has many good characteristics, as passive working method, and can be by enemy's electronic interferences, good concealment; Image is directly perceived, is easy to observe; Precision is high; Low-altitude detection performance is good etc., in the multinomial fields such as early warning, tracking, ground air defense and guidance, is widely applied. In recent years, along with the continuous expansion of tremendous development and the range of application thereof of infrared optics technology, the demand of infrared continuous zooming optical system is strengthened day by day.
Infrared continuous zooming optical system can continuously change system focal length within the specific limits, and in changing visual field, image planes are stablized clear, can there is not the problem of track rejection, so can be first by large visual field search target, after switch to small field of view, accurately object observing. Increasing field strengthens day by day to the demand of infrared continuous zoom lens, mainly comprises forward sight investigation, sighting system, acquisition and tracking system and civilian safety-protection system etc.
Therefore, development compact medium wave infrared continuous zoom lens is research purpose of the present utility model.
Summary of the invention
The purpose of this utility model is to provide a kind of compact Middle infrared continuous zoom optical system and camera lens thereof, and this optical system and camera lens have high imaging quality, high spatial resolution, compact conformation, zoom and compensation stroke is short, detection range is far away, the performance of lightweight and vibration resistance and impact.
The technical solution of the utility model is: a kind of compact Middle infrared continuous zoom optical system, comprise along light from the front fixing arrangement of mirrors sheet that goes to rear incident direction to set gradually, zoom arrangement of mirrors sheet, compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet, tilting first speculum that is useful on turn light rays downside of rear side of described rear fixing arrangement of mirrors sheet, described the first speculum downside is provided with the first positive lens and negative lens, the tilting light that is useful on of described negative lens downside turns the second speculum to front side, and the front side of described the second speculum is also provided with the second positive lens.
Further, the airspace between described front fixing arrangement of mirrors sheet and zoom arrangement of mirrors sheet is 76.5 ~ 88.2mm; Airspace between zoom arrangement of mirrors sheet and compensation arrangement of mirrors sheet is 5.26 ~ 32.7mm; Airspace between compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet is 7.16 ~ 22.9mm; Airspace between rear fixing arrangement of mirrors sheet and the first speculum is 100.5mm; Airspace between the first speculum and the first positive lens is 53.5mm; Airspace between the first positive lens and negative lens is 1.85mm; Airspace between negative lens and the second speculum is 18mm; Airspace between the second speculum and the second positive lens is 18mm.
A kind of compact medium wave infrared continuous zoom lens, comprise the picture frame for fixed optical system, on described picture frame, be provided with power zoom mechanism and electromotion focusing mechanism, described picture frame downside is fixed with connecting bottom board, is fixed with the Infrared Detectors on the light output end that is connected in picture frame on described connecting bottom board.
Further, described picture frame comprises primary mirror seat, rear microscope base and turnover microscope base, the leading portion inwall of described primary mirror seat is equipped with the front arrangement of mirrors seat for front fixing arrangement of mirrors sheet is installed, the stage casing inwall of primary mirror seat is equipped with the zoom microscope base for zoom arrangement of mirrors sheet is installed, the back segment inwall of primary mirror seat is equipped with the compensation microscope base for compensation arrangement of mirrors sheet is installed, the rear end of described primary mirror seat is connected with rear microscope base, the leading portion inwall of described rear microscope base is equipped with the rear fixing arrangement of mirrors seat for rear fixing arrangement of mirrors sheet is installed, the rear end of rear microscope base be connected for the first mirror unit that assembles the first speculum, described turnover microscope base is connected on the light output through hole of rear microscope base rear end lower, the epimere inwall of described turnover microscope base is provided with the first secondary imaging microscope base for assembling the first positive lens and negative lens, the upper downside in the first secondary imaging microscope base of turnover microscope base is provided with the second mirror unit for the second speculum is installed, turnover microscope base turns in the end of front side and is provided with the second secondary imaging microscope base for assembling the second positive lens, described Infrared Detectors is connected with the light output end of the second secondary imaging microscope base.
Further, in described primary mirror seat leading portion, be also provided with front arrangement of mirrors seat trim ring, in described front arrangement of mirrors seat, be also provided with the front group of trim ring for fixing arrangement of mirrors sheet before fixing, in described zoom microscope base, be also provided with the zoom trim ring for fixing zoom arrangement of mirrors sheet, in described compensation microscope base, be also provided with the compensation trim ring for fixed compensation arrangement of mirrors sheet, in described rear fixing arrangement of mirrors seat, be also provided with rear group of trim ring, in described the first mirror unit, be also provided with the first speculum trim ring, described the first secondary imaging microscope base is also provided with the first positive lens trim ring and negative lens spacer ring, in described the second mirror unit, be also provided with the second speculum trim ring, in described the second secondary imaging microscope base, be also provided with the second positive lens trim ring.
Further, described power zoom mechanism comprises the motor rack that is arranged at primary mirror seat stage casing upside, on described motor rack, be provided with motor, motor gear on described motor output shaft engages with the potentiometer gear precision being arranged on the potentiometer of motor side, described motor gear also engages with the cam that is arranged at front arrangement of mirrors seat upside and lock through cam trim ring is accurate, on described cam, be provided with pair of cams guide pin, the cam guide pin that is positioned at front side is connected with the zoom Mobile base being arranged on zoom microscope base, in described front arrangement of mirrors seat, be also fixed with guide rod, described guide rod and zoom Mobile base are slidably matched, the cam guide pin that is positioned at rear side is connected with the compensation Mobile base being arranged on compensation microscope base, described compensation Mobile base and guide rod are slidably matched, it is spacing through microswitch when described cam rotates to two ends extreme position.
Further, described electromotion focusing mechanism comprises that being arranged at turnover microscope base turns to the second motor rack of the end downside of front side, on described the second motor rack, be provided with the second motor, the motor gear of described the second motor be placed on turnover microscope base and turn accurate engagement of focusing ring to the end periphery of front side, on described focusing ring, be provided with focusing guide pin, described focusing guide pin is installed on the focusing mount that inwall is connected with the second secondary imaging microscope base, spacing through the second microswitch when described focusing ring rotates to two ends extreme position.
Compared with prior art, the utlity model has following advantage:
(1) in optical system, the focal power of the each group of reasonable distribution; Adopt altogether three aspheric surface aberration corrections, adopt speculum folded optical path, make camera lens reach the advantages such as high imaging quality, compact conformation, zoom compensation stroke be short; (2) in optical design, move and realize temperature-compensating and far and near apart from compensation by the second positive lens in rear secondary imaging group, ensure the instructions for use of camera lens under high temperature and low temperature environment; (3), in optical design, by optimizing and revising the cold emission picture of system, make mirror-reflection " ghost image " and cold emission " blackspot " away from detector image planes; (4) in optical design, by the optimal design to cam curve, effectively control the optical axis drift in zoom process, in full focal length segment limit, image quality is good; (5) under the prerequisite of compact conformation, adopt a series of measures ensureing, improved the ability of camera lens vibration resistance, impact.
Brief description of the drawings
Fig. 1 is the structural representation of optical system of the present utility model;
Fig. 2 is the structural representation of camera lens of the present utility model;
Fig. 3 is the left side view of power zoom of the present utility model mechanism;
Fig. 4 is the H-H cutaway view of Fig. 3 of the present utility model;
Fig. 5 is the left side of electromotion focusing of the present utility model mechanism;
Fig. 6 is the I-I cutaway view of Fig. 5 of the present utility model;
in the figure: 1 - before the mirror before clamping ring 2 - a group a lens group pressure ring before 3-5-6 - changing times mirror of primary mirror stands 7-9 - variable voltage double circle electric zoom mechanism 91 - guide bar clamp electric frame 95-93-94 - potentiometer gear motor gear 96 - potentiometer 97-98-99 - CAM CAM guide pin clamping ring 911-910 - CAM compensation mobile city guide 912-914 - seat 915 - times mirror change times mobile bridge 916 - micro switch 917-10 - micro switch compensator block clamping ring 13-12 - compensation after bridge after 14 - fixed set of mirror lens group pressure ring after 15-17 - the first reflecting mirror seat 18 - the first clamping ring 20 - turning mirror mirror 22 - the first clamping ring 24 - negative lens is a lens baffle 26 - the second reflecting mirror seat 28 - the second clamping ring 29 - electric focusing mirror agency 291-292 - micro switch seat adjustable clamping ring 293 - adjustable JiaoHuan 294 - adjustable JiaoHuan JiaoHuan guide pin 295 - the focuser 296 - micro switch 297-298 - electric motor frame 298-30 - second motor gear secondary imaging lens seat 32 - the second clamping ring is lens 33-34-35 - infrared detector probe frame fixed set of lenses before connecting the plate A - A1 - air interval B - times element B1 - air interval C - compensation element C1 - D - air interval after A fixed set of lenses D1 - air interval E1 - the first positive lens E11 - air interval E2 - negative lens E21 - air interval E3 - the second interval F1 lens E31 - air - the first reflector F11 - air interval F12 - Angle of F2 - second reflector F21 - air interval making - G - Angle imaging plane.
Detailed description of the invention
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.
With reference to figure 1
A kind of compact Middle infrared continuous zoom optical system, comprise along light from the front fixing arrangement of mirrors sheet A that goes to rear incident direction to set gradually, zoom arrangement of mirrors sheet B, compensation arrangement of mirrors sheet C and rear fixing arrangement of mirrors sheet D, the tilting first speculum F1 that is useful on turn light rays downside of rear side of described rear fixing arrangement of mirrors sheet, described the first speculum downside is provided with the first positive lens E1 and negative lens E2, the tilting light that is useful on of described negative lens downside turns the second speculum F2 to front side, the front side of described the second speculum is also provided with the second positive lens E3, the front side of described the second positive lens is imaging plane G. described the first speculum and the second speculum composition speculum group, described the first positive lens and negative lens and the second positive lens composition secondary imaging group. light is from going to fixing arrangement of mirrors sheet A of rear the past to inject, after importing into, fix arrangement of mirrors sheet D through zoom arrangement of mirrors sheet B, compensation arrangement of mirrors sheet C, after turning to, the first speculum sends into again the first positive lens, negative lens from top to bottom, light after passing is sent into the second positive lens after the second speculum turns to, and the most vertical being projected on imaging plane.
In the present embodiment, along light incident direction, the airspace A1 between described front fixing arrangement of mirrors sheet and zoom arrangement of mirrors sheet is 76.5 ~ 88.2mm; Airspace B1 between zoom arrangement of mirrors sheet and compensation arrangement of mirrors sheet is 5.26 ~ 32.7mm; Airspace C1 between compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet is 7.16 ~ 22.9mm; Airspace D1 between rear fixing arrangement of mirrors sheet and the first speculum is 100.5mm; Airspace F11 between the first speculum and the first positive lens is 53.5mm; Airspace E11 between the first positive lens and negative lens is 1.85mm; Airspace E21 between negative lens and the second speculum is 18mm; Airspace F21 between the second speculum and the second positive lens is 18mm, and the airspace E31 between described the second speculum and imaging plane is 34.08mm.
In the present embodiment, the angle F12 of described the first speculum and light incident direction is 45 °, and the angle F22 of described the second speculum and incident ray is 135 °. Described front fixing arrangement of mirrors sheet is negative crescent lens, and described zoom arrangement of mirrors sheet is biconcave lens, and described compensation arrangement of mirrors sheet is biconvex lens, and described rear fixing arrangement of mirrors sheet is lens.
In the present embodiment, the optical system being made up of above-mentioned lens set has reached following optical index: (1) service band: 3.7 μ m ~ 4.8 μ m; (2) focal distance f ': 150 ~ 300mm; (3) detector: medium-wave infrared refrigeration mode 320 × 256,30 μ m; (4) angle of visual field: 3.67 ° × 2.93 ° ~ 1.83 ° × 1.47 °; (5) relative aperture D/f ': 1/2; (6) folding rear optics volume: 262mm × 154mm × 179mm(length × wide × height).
In the present embodiment, in order to come from the stray radiation beyond scenery radiation in inhibition system, should adopt 100% cold stop efficiency. For refrigeration mode infrared optical system, emergent pupil that should be using the cold stop of detector as optical system, thus realize 100% cold stop efficiency. Therefore, this continuous vari-focus system adopts secondary imaging structure, can, in ensureing to realize 100% cold stop efficiency, reduce the radial dimension of system, and adopt two speculums to carry out folded optical path, makes optical system be " U " type structure.
This variable focal length optical system is considered the temperature sensitivity of infrared optical system, reasonably selects the material of lens, from the initial stage of optical design, reduces the impact of temperature on system. In conventional infra-red material, the refractive index temperature variation coefficient of Si and Ge is relatively low, and the price of Si is low compared with Ge, proportion is less than Ge, therefore, and based on the consideration of cost and weight aspect, select the main material of Si as zoom system, pancreatic system, part lens select Ge to carry out correcting chromatic aberration. Compare visible ray material and absorb greatlyr due to infra-red material, but refractive index is also high, so in design, conventionally do not need to use too many eyeglass, otherwise the transmitance of system can be very poor, can affect final imaging effect. In design, take into full account processing technology factor, introduce aspheric surface simultaneously and carry out balance sysmte aberration, the structure of optical system is more simplified, and image quality is better, reaches performance, cost and technique and takes into account, and realizes a good design.
Utilize optical design software, rational Optimal Parameters is set, the initial configuration calculating is optimized to design, adopt "+,-,+,-" Zoom structure form; Secondary imaging employing "+,-,+" version. This optical system is made up of seven lens and two speculums, and each eyeglass all possesses good process, is easy to processing. First lens are front fixing arrangement of mirrors sheet, second lens is zoom arrangement of mirrors sheet, adopt the germanium material of high index of refraction, the 3rd lens are compensation arrangement of mirrors sheet, adopt the silicon materials of low dispersion, the 4th lens are rear fixing arrangement of mirrors sheet, and the 5th, six, seven lens are the first positive lens and negative lens and the second positive lens and form secondary imaging system, and optical system is folded into U-shaped structure by the first speculum and the cooperation of the second speculum. In optical design, for balance differs, adopt 3 aspheric surfaces, make system picture element good, compact conformation.
Referring to figs. 2 to Fig. 6
A kind of compact medium wave infrared continuous zoom lens, comprise the picture frame for fixed optical system, on described picture frame, be provided with power zoom mechanism 9 and electromotion focusing mechanism 29, described picture frame downside is fixed with connecting bottom board 35, is fixed with the Infrared Detectors 34 on the light output end that is connected in picture frame on described connecting bottom board. In the present embodiment, described Infrared Detectors is rigidly connected through detector carriage 33 and connecting bottom board.
In the present embodiment, described picture frame comprises primary mirror seat 5, rear microscope base 13 and turnover microscope base 20, the leading portion inwall of described primary mirror seat is equipped with the front arrangement of mirrors seat 2 for front fixing arrangement of mirrors sheet A is installed, and lock with front arrangement of mirrors seat trim ring 1, between described primary mirror seat and front arrangement of mirrors seat, adopt screw thread and main front to coordinate, can effectively ensure concentricity requirement. The stage casing inwall of primary mirror seat is equipped with the zoom microscope base 6 for zoom arrangement of mirrors sheet B is installed, described primary mirror seat and zoom microscope base controlling dimension tolerance, and the airspace before ensureing between fixing arrangement of mirrors sheet and zoom arrangement of mirrors sheet is 76.5 ~ 88.2mm. The back segment inwall of primary mirror seat is equipped with the compensation microscope base 10 for compensation arrangement of mirrors sheet C is installed, and described zoom microscope base and compensation microscope base controlling dimension tolerance ensure that the airspace between zoom arrangement of mirrors sheet and compensation arrangement of mirrors sheet is 5.26 ~ 32.7mm. The rear end of described primary mirror seat is rigidly connected and is rigidly connected with rear microscope base by 6 M3 soket head cap screws, the leading portion inwall of described rear microscope base is equipped with the rear fixing arrangement of mirrors seat 14 for rear fixing arrangement of mirrors sheet D is installed, between rear microscope base and rear fixing arrangement of mirrors seat, adopt screw thread and main front to coordinate, can effectively ensure concentricity requirement. Described rear microscope base and rear fixing arrangement of mirrors seat controlling dimension tolerance, ensure that the airspace between compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet is 7.16 ~ 22.9mm. The rear end of rear microscope base be rigidly connected by 3 M3 soket head cap screws for the first mirror unit 17 that assembles the first speculum F1, described rear microscope base and mirror unit controlling dimension tolerance, the airspace after ensureing between fixing arrangement of mirrors sheet and the first speculum is 100.5mm. Described turnover microscope base is connected in by 3 M3 soket head cap screws on the light output through hole of rear microscope base rear end lower, and described rear arrangement of mirrors seat and turnover microscope base controlling dimension tolerance, ensure that the airspace between the first speculum and the first positive lens is 53.5mm. The epimere inwall of described turnover microscope base is provided with the first secondary imaging microscope base 21 for assembling the first positive lens and negative lens, adopts screw thread and main positive cooperation, the concentricity requirement of can effectively ensure to transfer microscope base and the first secondary imaging microscope base. The upper downside in the first secondary imaging microscope base of turnover microscope base is provided with the second mirror unit 27 for the second speculum is installed, and the two is rigidly connected by 3 M3 soket head cap screws. Described turnover microscope base and the second mirror unit controlling dimension tolerance, ensure that the airspace between negative lens and the second speculum is 18mm. Turnover microscope base turns in the end of front side and is provided with the second secondary imaging microscope base 30 for assembling the second positive lens, described turnover microscope base and the second secondary imaging microscope base controlling dimension tolerance, ensure that the airspace between the second speculum and the second positive lens is 18mm. Described Infrared Detectors is connected with the light output end of the second secondary imaging microscope base. Described primary mirror seat, rear microscope base are rigidly connected with turnover microscope base and connecting bottom board. As shown in Figure 2.
In the present embodiment, in described primary mirror seat leading portion, be also provided with the front arrangement of mirrors seat trim ring 1 for locking front arrangement of mirrors seat, in described front arrangement of mirrors seat, be also provided with the front group of trim ring 3 for locking front fixing arrangement of mirrors sheet, in described zoom microscope base, be also provided with the zoom trim ring 7 for locking zoom arrangement of mirrors sheet, in described compensation microscope base, be also provided with the compensation trim ring 12 for locking compensation arrangement of mirrors sheet, in described rear fixing arrangement of mirrors seat, be also provided with the rear group of trim ring 15 for locking rear fixing arrangement of mirrors sheet, in described the first mirror unit 17, be also provided with the first speculum trim ring 18 for locking the first reflecting optics, described the first secondary imaging microscope base is also provided with the first positive lens trim ring 22 and the negative lens spacer ring 25 for locking the first positive lens and negative lens, described the first positive lens spacer ring controlling dimension tolerance, ensure that the airspace between the first positive lens and negative lens is 1.85mm. in described the second mirror unit, be also provided with the second speculum trim ring 28 for locking the second speculum, in described the second secondary imaging microscope base, be also provided with the second positive lens trim ring 32 for locking the second positive lens. as shown in Figure 2.
In the present embodiment, described power zoom mechanism comprises the motor rack 94 that is arranged at primary mirror seat stage casing upside, is rigidly connected by 2 M3 soket head cap screws and primary mirror seat. On described motor rack, be provided with motor 97, motor gear 95 on described motor output shaft and accurate engagement of potentiometer gear 93 being arranged on the potentiometer 96 of motor side, described motor gear and motor are rigidly connected, and described potentiometer gear and potentiometer are rigidly connected. Described motor gear also engages with cam 98 precisions that are arranged at front arrangement of mirrors seat upside and lock through cam trim ring 910, on described cam, be provided with pair of cams guide pin 99, the cam guide pin that is positioned at front side is connected with the zoom Mobile base 915 being arranged on zoom microscope base, described zoom Mobile base is connected with zoom microscope base, adopt screw thread and main positive cooperation, can effectively ensure concentricity requirement. In described front arrangement of mirrors seat, be also fixed with guide rod 911 and the guide rod pressing plate 91 for location guide. Described guide rod and zoom Mobile base are slidably matched, the cam guide pin that is positioned at rear side is connected with the compensation Mobile base 912 being arranged on compensation microscope base 10, described compensation Mobile base is connected with compensation microscope base, adopts screw thread and main positive cooperation, can effectively ensure concentricity requirement. Described compensation Mobile base and guide rod are slidably matched, when described cam rotates to two ends extreme position, by being arranged on the microswitch spacing 917 on primary mirror seat periphery microswitch seat 916. As shown in Figure 3 and Figure 4.
In the present embodiment, described electromotion focusing mechanism comprises that being arranged at turnover microscope base turns to the second motor rack 298, the second motor racks of the end downside of front side and be rigidly connected by 2 M3 soket head cap screws and turnover microscope base. On described the second motor rack, be provided with the second motor 297, the motor gear 299 of described the second motor be placed on turnover microscope base and turn accurate engagement of focusing ring 293 to the end periphery of front side, described motor gear and motor are rigidly connected, and focusing ring is locked with focusing ring trim ring 292. On described focusing ring, be provided with focusing guide pin 294, described focusing guide pin is installed on the focusing mount 295 that inwall is connected with the second secondary imaging microscope base 30, described focusing mount inwall coordinates with adopting screw thread and main front being connected of the second secondary imaging microscope base, can effectively ensure concentricity requirement. When described focusing ring rotates to two ends extreme position, by being arranged at the second microswitch spacing 296 on the second microswitch seat 291 of turnover microscope base periphery. As shown in Figure 5 and Figure 6.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (7)
1. a compact Middle infrared continuous zoom optical system, it is characterized in that, comprise along light from the front fixing arrangement of mirrors sheet that goes to rear incident direction to set gradually, zoom arrangement of mirrors sheet, compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet, tilting first speculum that is useful on turn light rays downside of rear side of described rear fixing arrangement of mirrors sheet, described the first speculum downside is provided with the first positive lens and negative lens, the tilting light that is useful on of described negative lens downside turns the second speculum to front side, and the front side of described the second speculum is also provided with the second positive lens.
2. compact Middle infrared continuous zoom optical system according to claim 1, is characterized in that, the airspace between described front fixing arrangement of mirrors sheet and zoom arrangement of mirrors sheet is 76.5 ~ 88.2mm; Airspace between zoom arrangement of mirrors sheet and compensation arrangement of mirrors sheet is 5.26 ~ 32.7mm; Airspace between compensation arrangement of mirrors sheet and rear fixing arrangement of mirrors sheet is 7.16 ~ 22.9mm; Airspace between rear fixing arrangement of mirrors sheet and the first speculum is 100.5mm; Airspace between the first speculum and the first positive lens is 53.5mm; Airspace between the first positive lens and negative lens is 1.85mm; Airspace between negative lens and the second speculum is 18mm; Airspace between the second speculum and the second positive lens is 18mm.
3. a compact medium wave infrared continuous zoom lens, comprise the picture frame for fixing compact Middle infrared continuous zoom optical system as claimed in claim 1, it is characterized in that, on described picture frame, be provided with power zoom mechanism and electromotion focusing mechanism, described picture frame downside is fixed with connecting bottom board, is fixed with the Infrared Detectors on the light output end that is connected in picture frame on described connecting bottom board.
4. compact medium wave infrared continuous zoom lens according to claim 3, it is characterized in that, described picture frame comprises primary mirror seat, rear microscope base and turnover microscope base, the leading portion inwall of described primary mirror seat is equipped with the front arrangement of mirrors seat for front fixing arrangement of mirrors sheet is installed, the stage casing inwall of primary mirror seat is equipped with the zoom microscope base for zoom arrangement of mirrors sheet is installed, the back segment inwall of primary mirror seat is equipped with the compensation microscope base for compensation arrangement of mirrors sheet is installed, the rear end of described primary mirror seat is connected with rear microscope base, the leading portion inwall of described rear microscope base is equipped with the rear fixing arrangement of mirrors seat for rear fixing arrangement of mirrors sheet is installed, the rear end of rear microscope base be connected for the first mirror unit that assembles the first speculum, described turnover microscope base is connected on the light output through hole of rear microscope base rear end lower, the epimere inwall of described turnover microscope base is provided with the first secondary imaging microscope base for assembling the first positive lens and negative lens, the upper downside in the first secondary imaging microscope base of turnover microscope base is provided with the second mirror unit for the second speculum is installed, turnover microscope base turns in the end of front side and is provided with the second secondary imaging microscope base for assembling the second positive lens, described Infrared Detectors is connected with the light output end of the second secondary imaging microscope base.
5. compact medium wave infrared continuous zoom lens according to claim 4, it is characterized in that, in described primary mirror seat leading portion, be also provided with front arrangement of mirrors seat trim ring, in described front arrangement of mirrors seat, be also provided with the front group of trim ring for fixing arrangement of mirrors sheet before fixing, in described zoom microscope base, be also provided with the zoom trim ring for fixing zoom arrangement of mirrors sheet, in described compensation microscope base, be also provided with the compensation trim ring for fixed compensation arrangement of mirrors sheet, in described rear fixing arrangement of mirrors seat, be also provided with rear group of trim ring, in described the first mirror unit, be also provided with the first speculum trim ring, described the first secondary imaging microscope base is also provided with the first positive lens trim ring and negative lens spacer ring, in described the second mirror unit, be also provided with the second speculum trim ring, in described the second secondary imaging microscope base, be also provided with the second positive lens trim ring.
6. according to the compact medium wave infrared continuous zoom lens described in claim 4 or 5, it is characterized in that, described power zoom mechanism comprises the motor rack that is arranged at primary mirror seat stage casing upside, on described motor rack, be provided with motor, motor gear on described motor output shaft engages with the potentiometer gear precision being arranged on the potentiometer of motor side, described motor gear also engages with the cam that is arranged at front arrangement of mirrors seat upside and lock through cam trim ring is accurate, on described cam, be provided with pair of cams guide pin, the cam guide pin that is positioned at front side is connected with the zoom Mobile base being arranged on zoom microscope base, in described front arrangement of mirrors seat, be also fixed with guide rod, described guide rod and zoom Mobile base are slidably matched, the cam guide pin that is positioned at rear side is connected with the compensation Mobile base being arranged on compensation microscope base, described compensation Mobile base and guide rod are slidably matched, it is spacing through microswitch when described cam rotates to two ends extreme position.
7. according to the compact medium wave infrared continuous zoom lens described in claim 4 or 5, it is characterized in that, described electromotion focusing mechanism comprises that being arranged at turnover microscope base turns to the second motor rack of the end downside of front side, on described the second motor rack, be provided with the second motor, the motor gear of described the second motor be placed on turnover microscope base and turn accurate engagement of focusing ring to the end periphery of front side, on described focusing ring, be provided with focusing guide pin, described focusing guide pin is installed on the focusing mount that inwall is connected with the second secondary imaging microscope base, it is spacing through the second microswitch when described focusing ring rotates to two ends extreme position.
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| CN109100858A (en) * | 2018-10-24 | 2018-12-28 | 福建福光股份有限公司 | Medium wave infrared continuous zoom lens and imaging method are imaged three times |
| CN109521555A (en) * | 2018-12-28 | 2019-03-26 | 福建福光天瞳光学有限公司 | A kind of short focus compact focusing motor-driven lens structure and its working method |
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| CN108107554A (en) * | 2017-12-27 | 2018-06-01 | 天津津航技术物理研究所 | A kind of distribution wedge scanning medium-wave infrared athermal imaging lens |
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| 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 |
| CN109100858A (en) * | 2018-10-24 | 2018-12-28 | 福建福光股份有限公司 | Medium wave infrared continuous zoom lens and imaging method are imaged three times |
| CN109100858B (en) * | 2018-10-24 | 2023-11-17 | 福建福光股份有限公司 | Three-time imaging medium wave infrared continuous zoom lens and imaging method |
| CN109521555A (en) * | 2018-12-28 | 2019-03-26 | 福建福光天瞳光学有限公司 | A kind of short focus compact focusing motor-driven lens structure and its working method |
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