CN203658669U - Flexible multiband infrared optical system - Google Patents
Flexible multiband infrared optical system Download PDFInfo
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- CN203658669U CN203658669U CN201320888332.9U CN201320888332U CN203658669U CN 203658669 U CN203658669 U CN 203658669U CN 201320888332 U CN201320888332 U CN 201320888332U CN 203658669 U CN203658669 U CN 203658669U
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Abstract
The utility model provides a flexible multiband infrared optical system, belongs to infrared optical systems, and solves the problems of an existing dual-band optical system that the spectrometry band is narrow, the optical path layout is limited, the size is large, and the weight is heavy. The flexible multiband infrared optical system comprises an infrared scanning mirror, a multiband infrared lens, an optical path switching device, an optical path switching controller, an FPA interface and an optical fiber interface. The infrared scanning mirror is capable of reflecting 2-14 [miu]m infrared light in different directions so as to enable the infrared light to be incident to the multiband infrared lens. The multiband infrared lens carries out focusing on the incident infrared light. The optical path switching device is arranged behind the multiband infrared lens, and by adopting a moving or rotating structure mode, the optical path switching device is capable of carrying out light splitting or time-sharing modulation on the focused infrared light. The flexible multiband infrared optical system is small in size, high in integration, convenient to use and flexible; in addition, the flexible multiband infrared optical system can be integrated with an automatic target identification system based on infrared images and spectrum correlation, thereby realizing view field scanning and automatic identification and tracking, and being applied to infrared remote sensing detection.
Description
Technical field
The utility model belongs to infrared remote sensing optical field, more specifically, relates to the dexterous infrared optical system of a kind of multiband.
Background technology
Remote optical sensing Detection Techniques obtain swift and violent development in recent years, and various remote optical sensing equipment arises at the historic moment, and their technical feature is also improved and is perfect, and the infrared image target automatic recognition system associated with spectrum is exactly one of them.As the significant components of the infrared image target automatic recognition system associated with spectrum, play an important role to improving system investigative range and recognition capability.Along with the fast development of remote sensing, the radiation of two wave bands is carried out to spectrographic detection simultaneously and seemed extremely important, corresponding optical system and design requirement thereof unprecedentedly increase.But infrared double-waveband optical system has larger difficulty in design, due to domestic in many-sided limitation such as infra-red material, working ability, coating techniques, especially on the basis that does not use particular components and special material at medium-wave infrared and two wave bands of LONG WAVE INFRARED ripple, proofread and correct various aberrations simultaneously.And because military optical system is mostly operated in compared with in rugged environment temperature range, the thermal refractive index coefficient of infrared optical material is larger, variation of ambient temperature can cause infrared optical system to produce hot out of focus and cause picture element to reduce, so it is passive very difficult without thermalization to realize total refraction by the eyeglass of minority.
The Chinese utility model patent (patent name: two-waveband infrared optical system) that the patent No. that the disclosed many infrared optical lens of prior art have authorize for 2011 is ZL200910272921.2, in patent, disclosed infrared optical lens is two waveband (medium wave and long wave), be actually that two lens assemblings of medium wave and long wave form, two optical center axles intersect vertically, before two camera lenses, there are 45 ° of spectroscopes, spectroscope separates the medium wave of incident and LONG WAVE INFRARED light, makes infrared light two camera lenses of incident respectively of two wave bands.Because spectroscope is positioned at before camera lens, the relative aperture of whole camera lens is larger, because be the assembling of two camera lenses, the volume weight of whole camera lens is also larger again.
The infrared optical lens relating in the Chinese utility model patent (patent name: a kind of multiband moving-target spectral signature detection identification method and device) that the patent No. of authorizing for 2013 is ZL201110430969.9 is multiwave, but its spectroscope only has transmission effect and there is no reflex LONG WAVE INFRARED light, therefore the LONG WAVE INFRARED light of all incidence system is only for imaging, spectrum can not be used for into, thereby the LONG WAVE INFRARED spectral signature of target cannot be obtained.
Utility model content
For above defect or the Improvement requirement of prior art, the utility model provides a kind of multiband dexterous infrared optical system, its object is to solve existing two waveband optical system LONG WAVE INFRARED light can not become spectrum, the problem that light path layout is limited, volume weight is large simultaneously.Solve thus based on the infrared image target automatic recognition system target optical spectrum associated with spectrum and can identify the technical matters that wave band is narrow, integrated level is not high, dexterous and portability is not high.
The dexterous infrared optical system of multiband that the utility model provides, comprises infrared scan mirror, infrared lens, light splitting eyeglass, FPA interface and optical fiber interface; Described infrared scan mirror is emitted to infrared lens for the infrared incident light that is 2-14um by wavelength, and described infrared lens is for focusing on infrared incident light; Described light splitting eyeglass is for the infrared light after focusing on is divided into two bundles, and a branch of infrared light is by the output of described FPA interface, and provides imaging source for outside imaging device; Another bundle infrared light is exported by described optical fiber interface, and is provided as spectrum light source for outside survey spectrum equipment.
The dexterous infrared optical system of a kind of multiband that the utility model provides, comprises infrared scan mirror, infrared lens, reflecting optics, light path switching device, light path switch controller, FPA interface and optical fiber interface; Described infrared scan mirror is emitted to infrared lens for the infrared incident light that is 2-14um by wavelength, and infrared lens is for focusing on infrared incident light; Described reflecting optics is arranged on described light path switching device, the angle setting at 45 ° of the central axis of described light path switching device and described infrared lens, and described reflecting optics moves and realizes light path timesharing and switches under the control of light path switch controller; In the front half period of switching in light path, the 2-14um infrared light after focusing is by described FPA interface output, for outside imaging device provides imaging source; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected by described reflecting optics and exports by described optical fiber interface, for outside survey spectrum equipment is provided as spectrum light source.
The dexterous infrared optical system of a kind of multiband that the utility model provides, comprises infrared scan mirror, infrared lens, light splitting eyeglass, reflecting optics, two lens light path switching device, light path switch controller, FPA interface and optical fiber interface; Described infrared scan mirror is emitted to infrared lens for the infrared incident light that is 2-14um by wavelength, and described infrared lens is for focusing on infrared incident light; Described light splitting eyeglass and described reflecting optics are arranged on described two lens light path switching device simultaneously; The central axis angle setting at 45 ° of described two lens light path switching device and described infrared lens; Under the control of light path switch controller, realize light splitting work by described light splitting eyeglass, the infrared light after focusing is divided into two bundles by described light splitting eyeglass, and a branch of infrared light is by described FPA interface output, for outside imaging device provides imaging source; Another bundle infrared light is exported by described optical fiber interface, for outside survey spectrum equipment is provided as spectrum light source; Under the control of light path switch controller, realize time-sharing work by described reflecting optics, in the front half period of switching in light path, the 2-14um infrared light after focusing is by described FPA interface output, for outside imaging device provides imaging source; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected by described reflecting optics and exports by described optical fiber interface, for outside survey spectrum equipment is provided as spectrum light source.
Wherein, infrared scan mirror comprises two-dimentional turntable and is arranged on the plane mirror on described two-dimentional turntable; Described two-dimentional turntable is digital tripod head, and described two-dimentional turntable is used for driving described plane mirror luffing or yaw motion.
Wherein, the LONG WAVE INFRARED light that described light splitting eyeglass is 8-14um to wavelength has semi-transparent semi-reflecting effect, and the medium-wave infrared light that the short-wave infrared light that is 2-3um to wavelength and wavelength are 3-5um has high retroaction.
The reflectivity of the LONG WAVE INFRARED that the short-wave infrared light that wherein, described reflecting optics (31) is 2-3um to wavelength, the medium-wave infrared light that wavelength is 3-5um and wavelength are 8-14um is greater than 95%.
The utility model system comprises infrared scan mirror, multiband infrared lens, light path switching device, light path switch controller, FPA interface and optical fiber interface.The 2-14um infrared light that infrared scan mirror can reflect different directions incides multiband infrared lens.Multiband infrared lens focuses on incident infrared light.After light path switching device is positioned at multiband infrared lens, adopt mobile or rotational structure form, can carry out light splitting or timesharing modulation to the infrared light after focusing on.
In general, the above technical scheme of conceiving by the utility model compared with prior art, as the infrared optics assembly based on the infrared image target automatic recognition system associated with spectrum, owing to having adopted scanning mirror, make the target of target automatic recognition system in can scanning search visual field, and it is followed the tracks of; Because spectroscope is to having the semi-transparent semi-reflecting effect of LONG WAVE INFRARED light, make the LONG WAVE INFRARED not only can imaging but also can become spectrum, can widen the one-tenth spectrum wave band of existing equipment; Due to timesharing light path design, the infrared light that makes shortwave, medium wave, three wave bands of long wave not only can imaging but also can have been become spectrum; Due to the light path design that light splitting/timesharing unites two into one, make this infrared system with better function, range of application is wider, uses more flexibly, is of value to miniaturization, intellectuality and the portable design of target automatic recognition system.Spectroscope, catoptron are placed in the version after camera lens, have simplified lens construction, system entrance pupil bore are reduced approximately over half, thereby have greatly reduced system bulk and weight.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dexterous infrared optical system of the multiband that provides of the utility model the first embodiment;
Fig. 2 is the structural representation of infrared scan mirror in the dexterous infrared optical system of the multiband that provides of the utility model embodiment;
Fig. 3 is the sweep limit schematic diagram of the infrared scan mirror that provides of the utility model embodiment;
Fig. 4 is the structural representation of the dexterous infrared optical system of the multiband that provides of the utility model the second embodiment;
Fig. 5 is the timesharing light path schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the second embodiment; (a) reflected light path; (b) straight-through light path;
Fig. 6 is the parallel-moving type optical path switching method schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the second embodiment; (a) reflective operation; (b) straight-through work; ;
Fig. 7 is the rotary light path changing method schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the second embodiment; (a) reflective operation; (b) straight-through work;
Fig. 8 is the structural representation of the dexterous infrared optical system of the multiband that provides of the utility model the 3rd embodiment;
Fig. 9 is timesharing and the light splitting optical path schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the 3rd embodiment; A time-sharing work--reflected light path; (b) time-sharing work--straight-through light path; C light splitting working light path;
Figure 10 is the parallel-moving type optical path switching method schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the 3rd embodiment; (a) light splitting work; (b) time-sharing work--reflection; (c) time-sharing work--straight-through;
Figure 11 is the rotary light path changing method schematic diagram of the dexterous infrared optical system of the multiband that provides of the utility model the 3rd embodiment; (a) light splitting work; (b) time-sharing work--reflection; (c) time-sharing work--straight-through
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.In addition,, in each embodiment of described the utility model, involved technical characterictic just can combine mutually as long as do not form each other conflict.
The utility model belongs to infrared remote sensing optical system, is specifically related to a kind of multiband infrared spectroscopy \ timesharing optical lens, can be used as the infrared optics assembly of the target automatic recognition system associated with spectrum based on infrared image.The design of special light splitting plated film, makes the LONG WAVE INFRARED not only can imaging but also can become spectrum, can widen the one-tenth spectrum wave band of existing equipment; Timesharing light path design, the infrared light that makes shortwave, medium wave, three wave bands of long wave not only can imaging but also can have been become spectrum; The design that light splitting, timesharing unite two into one, makes this infrared system with better function, and range of application is wider, uses more flexible.Be placed in camera lens version afterwards, not affecting under the prerequisite of lens function, simplified lens construction, system entrance pupil bore is reduced approximately over half, thereby greatly reduced system bulk and weight.
In order to overcome the deficiencies such as prior art infrared double-waveband camera lens wave band is narrower, system light path layout is limited, volume weight is large, improve that existing collection of illustrative plates integrated apparatus cannot obtain in target simultaneously, the deficiency of LONG WAVE INFRARED spectrum signature, the utility model provides a kind of multiband dexterous infrared spectroscopy \ timesharing optical system, comprises infrared scan mirror, infrared lens, light path switching device, light path switch controller.Infrared lens focuses on short-wave infrared light (2-3um), medium-wave infrared light (3-5um), LONG WAVE INFRARED light (8-14um).After light path switching device is positioned at multiband infrared lens, according to its residing duty to focus on rear short, in, LONG WAVE INFRARED light carries out light splitting or timesharing modulation.The duty of light path switching device can intelligent selection or artificially selected.In the time that light path switching device is operated in point light state, the 2-14um infrared light after lens focus is incident to light splitting piece, and 50% 8-14um infrared light sees through light splitting piece, and 2-5um and 50% 8-14um infrared light are reflected; In the time that light path switching device is operated in timesharing state, the 2-14um infrared light after lens focus by certain frequency directly by or be all reflected.Light splitting \ tdm controller is connected with main frame or other main control units via Serial Port Line.
Below in conjunction with accompanying drawing and example, the utility model is further described.
Be illustrated in figure 1 the structural representation of the dexterous infrared optical system of multiband, the dexterous infrared optical system of a kind of multiband that the utility model the first embodiment provides comprises: infrared scan mirror 1, infrared lens 2, light splitting eyeglass 30, FPA (Focal Plane Array, focal plane arrays (FPA)) interface 5 and optical fiber interface 6; The infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; The infrared light after focusing on is divided into two bundles by light splitting eyeglass 30, and a branch of infrared light is exported by FPA interface 5, and provide imaging source for outside imaging device; Another bundle infrared light is exported by optical fiber interface 6, and is provided as spectrum light source for outside survey spectrum equipment.
In the utility model embodiment, as shown in Figure 2, infrared scan mirror 1 comprises two-dimentional turntable 11 and plane mirror 12 to the structure of infrared scan mirror 1; Two dimension turntable 11 be high accuracy number The Cloud Terrace, maximum load capability 3kg, 0.0129 °+0.00645 ° of position resolution/walking, 1000 step/seconds of maximum speed; Two dimension turntable 11 can drive plane mirror 12 pitching or certain angle θ (the θ ∈ [20 °～+ 20 °] of deflection, determined by required field positions in practical application), thereby realize the infrared light reflection of different visual fields to infrared lens 2, the range of movement schematic diagram of two dimension turntable 11 as shown in Figure 3, wherein Fig. 3 a shows the pitching sweep limit of infrared scan mirror 1, Fig. 3 b shows the deflection scanning scope of infrared scan mirror 1, and its range of movement is set according to the required visual field of concrete application.
In the utility model embodiment, infrared lens 2 can adopt transmission-type structure, also can adopt card match Green reflective structure.The satisfied condition of infrared lens 2 comprises: service band 2～14 μ m, lens transmission efficiency is more than 70%.In the utility model embodiment, infrared lens 2 design parameters need meet following requirement: field of view angle is 5.75 ° × 4.3 ° (rotation of gated sweep mirror can expand the field angle of whole system), wave band 2-14 μ m, and F number 1.0, focal length is about 57mm.Because wave band is very wide, infrared lens 2 need adopt multiple infrared crystal material fit color difference eliminating in the time of design, adds multiple aspheric surfaces to carry out aberration optimal design simultaneously.For reducing the issuable spectral noise of the LONG WAVE INFRARED radiation of camera lens own, in the time of lens design, need carry out designing without thermalization.In addition, the optical material such as required multispectral CVD ZnS, the monocrystalline Ge of system also will carry out special process design on processing and plated film.
The principle of work of the dexterous infrared optical system of multiband that the utility model embodiment provides: the infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; The infrared light after focusing on is divided into two bundles by light splitting eyeglass 30, exports respectively by FPA interface 5 and optical fiber interface 6.The infrared light that in infrared incident light after focusing, 50% wavelength is 8-14um sees through light splitting eyeglass 30, exports, and provide imaging source for outside imaging device by interface 5; The infrared light that the infrared light that in infrared incident light after focusing, another 50% wavelength is 8-14um and wavelength are 2-5um is reflected by light splitting eyeglass 30, exports, and be provided as spectrum light source for outside survey spectrum equipment by optical fiber interface 6.
The dexterous infrared optical system of multiband that the utility model embodiment provides is as the infrared optics assembly based on the infrared image target automatic recognition system associated with spectrum, can widen the one-tenth spectrum wave band of target automatic recognition system, make it not only can imaging to LONG WAVE INFRARED light but also can become spectrum; Make the target of target automatic recognition system in can scanning search visual field, and it is followed the tracks of, surveys spectrum; Also be of value to miniaturization, the portable design of target automatic recognition system.
In the time that target automatic recognition system needs search, tracking, decipherment distance distant (>5KM) target, because the infrared light of the dexterous infrared optical system of incident multiband is more weak, the effectively Tracking Recognition target of target automatic recognition system of the dexterous infrared optical system of multiband that employing the utility model the first embodiment provides, can adopt following light splitting technology scheme; The dexterous infrared optical system of a kind of multiband that the utility model the second embodiment provides, the structural representation of the dexterous infrared optical system of multiband that Fig. 4 provides for the utility model embodiment, comprising: infrared scan mirror 1, infrared lens 2, reflecting optics 31, light path switching device 32, light path switch controller 4, FPA interface 5 and optical fiber interface 6.
The infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; 2-14um infrared light after lens focus by certain frequency (1～5Hz) directly by or be all reflected, light path switch cycle T (0.2s～1s) according in practical application light path switch require set; In the front half period of switching in light path, the 2-14um infrared light after focusing is all exported by FPA interface 5, and provides imaging source for outside imaging device; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected eyeglass 31 and reflects by optical fiber interface 6 and export, and is provided as spectrum light source for outside survey spectrum equipment.Fig. 5 shows the light path switching schematic diagram of the 2-14um infrared light after focusing, and Fig. 5 (a) is reflected light path schematic diagram, and Fig. 5 (b) is straight-through light path schematic diagram.
In the utility model embodiment, the parameter of infrared scan mirror 1, infrared lens 2, FPA interface 5 and optical fiber interface 6 is identical with the first utility model example with requirement.
Reflecting optics 31 adopts K9 glass, and the infrared light of shortwave (2-3um), medium wave (3-5um), three wave bands of long wave (8-14um) is had to very high reflectivity, can reach more than 95%.
The principle of work of the dexterous infrared optical system of multiband that the utility model embodiment provides: the infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; In the front half period that 2-14um infrared light after lens focus switches in light path, all export by FPA interface 5, and provide imaging source for outside imaging device; 2-14um infrared light after lens focus in half period, is reflected by optical fiber interface 6 and exports, and be provided as spectrum light source for outside survey spectrum equipment after light path switching.
The dexterous infrared optical system of multiband that the utility model embodiment provides, as the infrared optics assembly based on the infrared image target automatic recognition system associated with spectrum, can improve the target detection distance of target automatic recognition system; Make the target of target automatic recognition system in can scanning search visual field, and it is followed the tracks of, surveys spectrum; Also be of value to miniaturization, the portable design of target automatic recognition system.
Light path switching device 32 can adopt portable or revolving structure, and portable light path switching device 32 is mainly made up of guide rail and mirror holder, and mirror holder is for fixing described catoptron 31, and mirror holder can move on guide rail, and Fig. 6 is its structural representation.
Light path switch controller 4 comprises motor and control circuit, and motor drives mirror holder motion under the control of control circuit, thereby drives catoptron 31.Motor is connected with mirror holder by mechanical transmission mechanism, for example, and band transmission, gear drive etc.
The structure of rotary light path switching device shifter 32 as shown in Figure 7, comprises rotation mirror holder, and rotation mirror holder is connected by gear drive with motor, and rotation mirror holder is for fixation reflex eyeglass 31 and drive reflecting optics 31 to rotate.
In the time needing light splitting and timesharing light path in the homogeneous course of work, can adopt following technical scheme simultaneously; The dexterous infrared optical system of a kind of multiband that the utility model the 3rd embodiment provides, the structural representation of the dexterous infrared optical system of multiband that Fig. 8 provides for the utility model embodiment, comprising: infrared scan mirror 1, infrared lens 2, light splitting eyeglass 30, reflecting optics 31, two lens light path switching device 33, light path switch controller 4, FPA interface 5 and optical fiber interface 6; Light splitting eyeglass 30 and reflecting optics 31 are housed on two lens light path switching device 33 simultaneously, under the control of light path switch controller 4, drive light splitting eyeglass 30 and reflecting optics 31 to realize needed light path, light splitting optical path when near distance (<5km), adopts timesharing light path when distance (>5km).
Fig. 9 is the schematic diagram of timesharing light path and light splitting optical path, when time-sharing work, the 2-14um infrared light after lens focus by certain frequency (1～5Hz) directly by or be all reflected; In the front half period of switching in light path, the 2-14um infrared light after focusing is all exported by FPA interface 5, and for outside imaging device provides imaging source, as shown in Fig. 9 (a); In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected eyeglass 31 and reflects by optical fiber interface 6 and export, and is provided as spectrum light source for outside survey spectrum equipment, as shown in Fig. 9 (b).In light splitting when work,, the infrared light after focusing on is divided into two bundles by light splitting eyeglass 30, and a branch of infrared light is exported by FPA interface 5, and provide imaging source for outside imaging device; Another bundle infrared light is exported by optical fiber interface 6, and is provided as spectrum light source for outside survey spectrum equipment, as shown in Fig. 9 (c).
The principle of work of the dexterous infrared optical system of multiband that the utility model embodiment provides: when time-sharing work, the infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; 2-14um infrared light after lens focus by certain frequency (1～5Hz) directly by or be all reflected, light path switch cycle T (0.2s～1s) according in practical application light path switch require set; In the front half period of switching in light path, the 2-14um infrared light after focusing is all exported by FPA interface 5, and provides imaging source for outside imaging device; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected eyeglass 31 and reflects by optical fiber interface 6 and export, and is provided as spectrum light source for outside survey spectrum equipment.When light splitting work, the infrared incident light that infrared scan mirror 1 is 2-14um by wavelength is emitted to infrared lens 2, and infrared lens 2 focuses on infrared incident light; The infrared light after focusing on is divided into two bundles by light splitting eyeglass 30, exports respectively by FPA interface 5 and optical fiber interface 6; The infrared light that in infrared incident light after focusing, 50% wavelength is 8～14um sees through light splitting eyeglass 30, exports, and provide imaging source for outside imaging device by interface 5; The infrared light that the infrared light that in infrared incident light after focusing, another 50% wavelength is 8～14um and wavelength are 2～5um is reflected by light splitting eyeglass 30, exports, and be provided as spectrum light source for outside survey spectrum equipment by optical fiber interface 6.
The effective combination of the dexterous infrared optical system of multiband that the dexterous infrared optical system of multiband that the utility model embodiment provides provides the first embodiment and the second embodiment, as the infrared optics assembly based on the infrared image target automatic recognition system associated with spectrum, intelligent selection light path according to specific needs in same one action process, is of value to the intelligentized design of target automatic recognition system.
Two lens light path switching device 33 can adopt portable and revolving structure, and Figure 10 is the moving structure schematic diagram of two lens light path switching device 33.Reflecting optics and light splitting eyeglass are housed on two lens light path switching device 33 simultaneously.Light splitting when work, 30 translations incisions of spectroscope, optical axis through its center and with it surperficial angle at 45 °, as shown in Figure 10 (a).Reflecting optics when time-sharing work, under the control of light path switch controller, press certain cycle T (0.2s～1s, can program setting) move left and right, in front half period, catoptron 31 move to optical axis through its center and with it surperficial angle at 45 °, as shown in Figure 10 (b).In rear half period, catoptron 31 moves right, and makes its left side have the straight-through region of light that diameter is approximately identical with reflecting optics.As shown in Figure 10 (c).
Figure 11 is the rotational structure schematic diagram of two lens light path switching device 33.The 30 rotation incisions of light splitting when work spectroscope sheet, optical axis through its center and with it surperficial angle at 45 °, as shown in Figure 11 (a).When time-sharing work, reflecting optics 31 is pressed certain cycle T (0.2～1s under the control of light path switch controller, can program setting) left rotation and right rotation, in front half period, catoptron turn to optical axis through its center and with it surperficial angle at 45 °, as shown in Figure 11 (b).In rear half period, catoptron rotation cuts out, and makes its left side have approximately identical straight-through region of diameter and reflecting optics.As shown in Figure 11 (c).
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. the dexterous infrared optical system of multiband, is characterized in that, comprises infrared scan mirror (1), infrared lens (2), light splitting eyeglass (30), FPA interface (5) and optical fiber interface (6);
Described infrared scan mirror (1) is emitted to infrared lens (2) for the infrared incident light that is 2-14um by wavelength, and described infrared lens (2) is for focusing on infrared incident light; Described light splitting eyeglass (30) is for the infrared light after focusing on is divided into two bundles, and a branch of infrared light is by described FPA interface (5) output, and provides imaging source for outside imaging device; Another bundle infrared light is exported by described optical fiber interface (6), and is provided as spectrum light source for outside survey spectrum equipment.
2. the dexterous infrared optical system of multiband, it is characterized in that, comprise infrared scan mirror (1), infrared lens (2), reflecting optics (31), light path switching device (32), light path switch controller (4), FPA interface (5) and optical fiber interface (6);
Described infrared scan mirror (1) is emitted to infrared lens (2) for the infrared incident light that is 2-14um by wavelength, and infrared lens (2) is for focusing on infrared incident light; Described reflecting optics (31) is arranged on described light path switching device (32), the central axis angle setting at 45 ° of described light path switching device (32) and described infrared lens (2), described reflecting optics (31) moves and realizes light path timesharing and switches under the control of light path switch controller (4);
In the front half period of switching in light path, the 2-14um infrared light after focusing is by described FPA interface (5) output, for outside imaging device provides imaging source; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected by described reflecting optics (31) and passes through described optical fiber interface (6) output, for outside survey spectrum equipment is provided as spectrum light source.
3. the dexterous infrared optical system of multiband, it is characterized in that, comprise infrared scan mirror (1), infrared lens (2), light splitting eyeglass (30), reflecting optics (31), two lens light path switching device (33), light path switch controller (4), FPA interface (5) and optical fiber interface (6);
Described infrared scan mirror (1) is emitted to infrared lens (2) for the infrared incident light that is 2-14um by wavelength, and described infrared lens (2) is for focusing on infrared incident light;
Described light splitting eyeglass (30) and described reflecting optics (31) are arranged on described two lens light path switching device (33) simultaneously; The central axis angle setting at 45 ° of described two lens light path switching device (33) and described infrared lens (2); Under the control of light path switch controller (4), realize light splitting work by described light splitting eyeglass (30), infrared light after focusing is divided into two bundles by described light splitting eyeglass (30), a branch of infrared light is by described FPA interface (5) output, for outside imaging device provides imaging source; Another bundle infrared light is by described optical fiber interface (6) output, for outside survey spectrum equipment is provided as spectrum light source;
Under the control of light path switch controller (4), realize time-sharing work by described reflecting optics (31), in the front half period of switching in light path, 2-14um infrared light after focusing is by described FPA interface (5) output, for outside imaging device provides imaging source; In the rear half period of switching in light path, the 2-14um infrared light after focusing is reflected by described reflecting optics (31) and passes through described optical fiber interface (6) output, for outside survey spectrum equipment is provided as spectrum light source.
4. the dexterous infrared optical system of multiband as described in claim 1-3 any one, is characterized in that, infrared scan mirror (1) comprises two-dimentional turntable (11) and is arranged on the plane mirror (12) on described two-dimentional turntable; Described two-dimentional turntable (11) is digital tripod head, and described two-dimentional turntable (11) is for driving (12) luffing of described plane mirror or yaw motion.
5. the dexterous infrared optical system of multiband as described in claim 1 or 3, it is characterized in that, the LONG WAVE INFRARED light that described light splitting eyeglass (30) is 8-14um to wavelength has semi-transparent semi-reflecting effect, and the medium-wave infrared light that the short-wave infrared light that is 2-3um to wavelength and wavelength are 3-5um has high retroaction.
6. the dexterous infrared optical system of multiband as described in claim 2 or 3, it is characterized in that, the reflectivity of the LONG WAVE INFRARED that the short-wave infrared light that described reflecting optics (31) is 2-3um to wavelength, the medium-wave infrared light that wavelength is 3-5um and wavelength are 8-14um is greater than 95%.
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| CN201320888332.9U CN203658669U (en) | 2013-12-30 | 2013-12-30 | Flexible multiband infrared optical system |
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| CN201320888332.9U CN203658669U (en) | 2013-12-30 | 2013-12-30 | Flexible multiband infrared optical system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335330A (en) * | 2017-12-31 | 2018-07-27 | 华中科技大学 | A kind of collection of illustrative plates collaboration real time processing system |
| CN108692815A (en) * | 2017-04-04 | 2018-10-23 | 手持产品公司 | Use the multispectral imaging of longitudinal chromatic aberration |
| CN113552713A (en) * | 2021-06-29 | 2021-10-26 | 上海科技馆 | All-day telescope scanning device and all-day telescope |
-
2013
- 2013-12-30 CN CN201320888332.9U patent/CN203658669U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108692815A (en) * | 2017-04-04 | 2018-10-23 | 手持产品公司 | Use the multispectral imaging of longitudinal chromatic aberration |
| CN108692815B (en) * | 2017-04-04 | 2021-08-31 | 手持产品公司 | Multispectral imaging using longitudinal chromatic aberration |
| CN108335330A (en) * | 2017-12-31 | 2018-07-27 | 华中科技大学 | A kind of collection of illustrative plates collaboration real time processing system |
| CN113552713A (en) * | 2021-06-29 | 2021-10-26 | 上海科技馆 | All-day telescope scanning device and all-day telescope |
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