Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 25. Отображено 25.
06-06-2023 дата публикации

Simulation algorithm for synthetic aperture imaging process

Номер: CN116228547A
Автор: LUO XIANGANG, LU YURAN, GUO YINGHUI, ZHANG QI, PU MINGBO
Принадлежит:

The invention provides a simulation algorithm for a synthetic aperture imaging process, which comprises the following steps: a preprocessing step, a supersampling step, a pupil dithering step, a low-resolution image generation step, an image dithering step and a downsampling step, and is characterized in that simulation for pupil dithering and image dithering is added under the condition that the simulation efficiency is not obviously reduced; relative jitter of a lens and an imaging target in a real environment is simulated, and the influence of specific jitter on the Fourier lamination imaging quality can be more completely simulated and surveyed.

Подробнее
Номер записи: 1
22-08-2023 дата публикации

Dual-function regulation and control device and rotation regulation and control method

Номер: CN116626799A
Автор: LUO XIANGANG, JIN JINJIN, LI XIONG, PU MINGBO, MA XIAOLIANG, WANG QINGSONG
Принадлежит:

The invention provides a dual-function regulation and control device and a rotation regulation and control method, and relates to the technical field of micro-nano optics, and the device comprises a first metasurface element and a second metasurface element which are cascaded and are arranged on the same optical axis. The surfaces of the first metasurface element and the second metasurface element both comprise a plurality of metasurface unit column structures. And the phase distribution of the first metasurface element and the second metasurface element is related to the size and deflection angle value of the plurality of metasurface unit column structures. Wherein the first metasurface element and the second metasurface element are configured to perform phase joint regulation and control and output an image with a focal length when receiving the left-hand circular polarization incident light. The first metasurface element and the second metasurface element are configured to perform phase ...

Подробнее
Номер записи: 2
20-06-2019 дата публикации

SUB-WAVELENGTH STRUCTURE MATERIAL COMPATIBLE WITH LOW DETECTABILITY OF INFRARED, LASER AND MICROWAVES

Номер: WO2019114268A1
Автор: LUO, Xiangang, PU, Mingbo, LI, Xiong, MA, Xiaoliang, SHEN, Guoqing
Принадлежит:

A sub-wavelength structure material that is compatible with the low detectability of infrared, laser and microwaves, from top to bottom sequentially comprising a metallic frequency selective surface layer I (1), a medium layer I (2), a metallic frequency selective surface layer II (3), a medium layer II (4), a resistance film (5), and a medium layer III (6). The metallic frequency selective surface layer I (1) and the metallic frequency selective surface layer II (3) are sub-wavelength patch arrays, and the metal used has the characteristic of low infrared emissivity. A phase difference generated by patches of different sizes on the metallic frequency selective surface layer I (1) is used to regulate a phase and then control the back scattering of incident electromagnetic waves to achieve compatibility with the low detectability of laser and infrared, and the bottom three layers achieve the absorption of microwaves. The limitations of only working in a single waveband of traditional wave-absorbing ...

Подробнее
Номер записи: 3
04-08-2023 дата публикации

Light sail construction method and light sail

Номер: CN116540406A
Автор: LUO XIANGANG, ZHANG FEI, HA YINGLI, LIU YONGJIAN, LI LANTING, PU MINGBO
Принадлежит:

The invention provides a light sail construction method and a light sail, and relates to the technical field of light sails, the surface of the light sail is provided with a super-structure surface structure, and the method comprises the following steps: on the basis of a coordinate system taking the geometric center point of the super-structure surface structure as the origin of coordinates, constructing a light sail; determining phase distribution of each position of the characterization metasurface structure after regulation and control of incident polarized light in the x direction and phase distribution of each position of the characterization metasurface structure after regulation and control of incident polarized light in the y direction, and obtaining target phase distribution; obtaining phase values of the plurality of alternative metasurface units with different geometric parameters after the alternative metasurface units regulate and control the incident x-direction polarized ...

Подробнее
Номер записи: 4
27-06-2019 дата публикации

MULTILAYER RADIATION COOLING FILM TRANSPARENT TO VISIBLE LIGHT

Номер: WO2019119787A1
Автор: LUO, Xiangang, MA, Xiaoliang, PU, Mingbo, LI, Xiong, GUO, Yinghui
Принадлежит:

The present invention provides a multilayer radiation cooling film transparent to visible light, comprising N alternately arranged film layers having different thicknesses. The multilayer radiation cooling film transparent to visible light adopts a novel film layer arrangement technique, such that the multilayer film performs radiation cooling while also demonstrating high transmittance of visible light. The multilayer film is composed of two types of materials having high transmittance of visible light. A resonant cavity is formed between material layers by means of a difference between dielectric constants of the two types of materials, and enhances the strength of an electric field in a region where the resonant cavity is located, thereby greatly improving radiance of the entire structure in comparison with an original material. The invention has a simple structure, is easy to manufacture and low in cost, and achieves good cooling effects and high transmittance of visible light.

Подробнее
Номер записи: 5
25-07-2023 дата публикации

Calibration method and system and computer readable storage medium

Номер: CN116485918A
Автор: LUO XIANGANG, CHE JIANQIANG, ZHANG FEI, LI XIAOYIN, PU MINGBO
Принадлежит:

The invention belongs to the technical field of three-dimensional reconstruction, and particularly discloses a calibration method and system and a computer readable storage medium. The calibration method comprises the following steps: calibrating a camera; determining N calibration positions along the Z axis of the world coordinate system; at each calibration position, obtaining a laser dot matrix image of a laser dot matrix projected to the diffuse reflection plate at the calibration position by the dot matrix light source and a checkerboard image arranged at the calibration position, and calculating a transformation matrix from an XY plane to a pixel coordinate system of the camera by using the checkerboard image and an internal reference matrix and a distortion coefficient of the camera; converting the laser dot matrix image from a pixel coordinate system to a camera coordinate system by using the laser dot matrix image and the internal reference matrix, the distortion parameter and ...

Подробнее
Номер записи: 6
25-08-2023 дата публикации

Polarization adjusting assembly, polarization imaging device and polarization imaging method

Номер: CN116642832A
Автор: LUO XIANGANG, LEI JIAN, WANG MAOYU, ZHANG QI, NIU XUEFEI, ZHANG FEI, PU MINGBO
Принадлежит:

The invention belongs to the technical field of polarization imaging, and particularly relates to a polarization adjusting assembly, a polarization imaging device and a polarization imaging method. From an object side to an image side, the polarization imaging device sequentially comprises an imaging lens group which is located in front of a focal plane of an imaging detector and used for focusing light rays on the focal plane of the imaging detector, and a polarization adjusting assembly which is used for adjusting the polarization direction of the light rays emitted from the imaging assembly and comprises a first polarization grating, a second polarization grating and a linear polarizer, the polarization adjusting assembly is used for carrying out polarization filtering on light emitted from the polarization adjusting assembly, the imaging detector is used for obtaining image information of a to-be-imaged object, and the controller is used for controlling the imaging detector to obtain ...

Подробнее
Номер записи: 7
12-07-2018 дата публикации

PHOTORESIST COATING METHOD AND DEVICE

Номер: WO2018126507A1
Автор: LUO, Xiangang, WANG, Yanqin, ZHAO, Zeyu, PU, Mingbo, GAO, Ping, MA, Xiaoliang, LI, Xiong, GUO, Yinghui
Принадлежит:

Disclosed is a photoresist coating device and a photoresist coating method. The photoresist coating device comprises: a gas supply unit (10) for supplying gas to a photoresist coating unit (20); the photoresist coating unit (20) comprising: an equipment chamber (202) encapsulated by a side wall, a bottom plate and a cover plate (206), a rotary platform (204) for bearing a substrate (205) and driving the substrate to rotate, a flow guide unit conformal with the substrate for uniformly blowing the gas supplied from the gas supply unit over the surface of the substrate coated with photoresist; and an extraction unit (203) for extracting the gas from the equipment chamber (202). The method achieves rapid and uniform photoresist coating of large-area substrates.

Подробнее
Номер записи: 8
15-08-2023 дата публикации

Laser beam scanning system debugging method

Номер: CN116594187A
Автор: LUO XIANGANG, CHE JIANQIANG, ZHANG FEI, LI XIAOYIN, PU MINGBO
Принадлежит:

The invention belongs to the technical field of optical systems, and particularly relates to a laser beam scanning system debugging method which comprises the following steps: controlling a laser light source to generate incident laser, and enabling the incident laser to sequentially pass through a first lens and a second lens included in a laser beam scanning system and then be projected to a target surface to form a pattern; adjusting the size of the clear aperture of the first lens to form a zero-order pattern on the target surface; adjusting the size of the clear aperture of the first lens to form a non-zero-order pattern on the target surface; according to the zero-order pattern and the non-zero-order pattern, the position of the second lens is adjusted until the preset condition that the laser beam scanning system completes debugging is met; wherein the preset condition comprises that the central point of the zero-order pattern coincides with the central point of the non-zero-order ...

Подробнее
Номер записи: 9
23-06-2023 дата публикации

Image acquisition device

Номер: CN116320670A
Автор: LUO XIANGANG, LU YURAN, GUO YINGHUI, ZHANG QI, ZHOU RUI, KE YUAN, PU MINGBO
Принадлежит:

The invention belongs to the technical field of imaging, and particularly discloses an image acquisition device which comprises an image acquisition unit used for acquiring an image of a to-be-imaged target; the movement mechanism is used for installing the image acquisition unit and driving the image acquisition unit to move; the control unit is in communication connection with the image acquisition unit and the movement mechanism and is used for controlling the movement mechanism to drive the image acquisition unit to move according to a preset path so as to acquire images of the to-be-imaged target at a plurality of shooting points; the preset path meets the following conditions: the image acquisition unit moves to each shooting point in the same direction to acquire an image of the to-be-imaged target; when the image acquisition units are located at the adjacent shooting points, the areas where the pupils are located are partially overlapped. According to the image acquisition device ...

Подробнее
Номер записи: 10
09-05-2023 дата публикации

Optical system

Номер: CN116088137A
Автор: LUO XIANGANG, XU JUNWEN, GUO YINGHUI, WANG MAOYU, ZHANG QI, ZHANG FEI, PU MINGBO
Принадлежит:

The invention belongs to the technical field of optics, and particularly relates to an optical system, which comprises a first optical subsystem with a first imaging surface, and light from an object side can be imaged on the first imaging surface after passing through the first optical subsystem; the second optical subsystem is provided with a second imaging surface, and the light from the object side can be imaged on the second imaging surface after passing through the first optical subsystem and the second optical subsystem; the mode switching module comprises a light flux adjusting unit and a micro-nano structure unit, the light flux adjusting unit is located at the first imaging surface and used for adjusting the light flux, the micro-nano structure unit is associated with the second optical subsystem, and the optical system can be in an imaging mode or a spectrum detection mode by adjusting the micro-nano structure unit. The light flux adjusting unit has different light flux in the ...

Подробнее
Номер записи: 11
02-07-2020 дата публикации

ULTRA-LARGE AREA SCANNING TYPE REACTIVE ION ETCHING MACHINE AND ETCHING METHOD

Номер: WO2020133401A1
Автор: LUO, Xiangang, ZHAO, Zeyu, WANG, Yanqin, GAO, Ping, MA, Xiaoliang, PU, Mingbo, LI, Xiong, GUO, Yinghui
Принадлежит:

An ultra-large area scanning type reactive ion etching machine and an etching method. The ultra-large area scanning type reactive ion etching machine comprises a sample introducing chamber (101), an etching reaction chamber (102), a transition chamber (103), and an etching ion generating chamber (104). By enabling a sample holder (111) to move among the sample introducing chamber (101), the etching reaction chamber (102), and the transition chamber (103) along a scanning direction, a sample (100) placed on the sample holder (111) is scanned and etched, so that large-area, uniform and efficient etching can be implemented.

Подробнее
Номер записи: 12
26-10-2017 дата публикации

BROADBAND ELECTROMAGNETIC WAVE PHASE MODULATING METHOD AND METASURFACE SUB-WAVELENGTH STRUCTURE

Номер: WO2017181530A1
Автор: LUO, Xiangang, PU, Mingbo, ZHAO, Zeyu, LI, Xiong, WANG, Yanqin, MA, Xiaoliang, WANG, Changtao
Принадлежит:

A broadband electromagnetic wave phase modulating method and a metasurface sub-wavelength structure. A sub-wavelength structure serves as a basic unit of a metasurface, arranged to form an array according to a rule determined by a pre-determined phase, and a geometric phase distribution having space continuity and frequency spectrum achromatism is generated between 0 and 2π, thereby enabling continuous modulation of a phase within a two-dimensional plane. An operating bandwidth of the phase modulating method and the metasurface sub-wavelength structure can encompass the entire electromagnetic frequency spectrum, and a number of types of optical instruments such as a reflective focusing/imaging element, a transmitting focusing/imaging element, a prism and an orbital angular momentum generator, can be designed according to the phase distribution generated by the sub-wavelength structure. The phase modulating method and the metasurface sub-wavelength structure can also be used to realize other ...

Подробнее
Номер записи: 13
28-07-2023 дата публикации

Optical lens switching mechanism

Номер: CN116500742A
Автор: LUO XIANGANG, JIANG BAOSHAN, WANG MAOYU, XU JUNWEN, GUO YINGHUI, PU MINGBO
Принадлежит:

The invention provides an optical lens switching mechanism which comprises an installation frame, and a plurality of through holes penetrating through the installation frame are formed in the side face of the installation frame. The lens is positioned at the through hole; the first transmission assembly is in transmission connection with the mounting frame and can drive the mounting frame to rotate horizontally and circumferentially; and the second transmission assembly is in transmission connection with the lens, and the second transmission assembly can drive the lens to rotate/rotate around the central axis of the lens. Through the ingenious structural design, high-precision switching, increasing and decreasing of the lenses under the space import condition can be achieved, meanwhile, rotation of the lenses can be achieved, a feasible thought is provided for achieving special functions of an optical system, and the optical system is suitable for application scenes of compact spaces such ...

Подробнее
Номер записи: 14
09-06-2023 дата публикации

Laser modulation method and system

Номер: CN116247490A
Автор: LUO XIANGANG, ZHOU RUI, GUO YINGHUI, ZHANG QI, LU YURAN, PU MINGBO
Принадлежит:

The invention belongs to the technical field of adaptive optics, and particularly discloses a laser modulation method, which comprises the following steps of: determining a block division rule; performing block division on the modulation module according to a block division rule; selecting a plurality of blocks meeting specific conditions from the divided blocks; performing the following operations on the plurality of blocks meeting the specific conditions one by one: applying a modulation parameter to the current block to modulate the laser; acquiring a light intensity distribution image of the laser which is modulated and influenced by atmospheric turbulence; calculating an evaluation value; if the difference between the currently calculated evaluation value and the previously calculated evaluation value is greater than an evaluation threshold value, calculating a modulation parameter according to the currently calculated evaluation value and the previously calculated evaluation value ...

Подробнее
Номер записи: 15
08-08-2023 дата публикации

Light sail construction method and light sail

Номер: CN116560079A
Автор: LUO XIANGANG, ZHANG FEI, HA YINGLI, LIU YONGJIAN, LI LANTING, PU MINGBO
Принадлежит:

The invention provides a light sail construction method and a light sail, and relates to the technical field of light sails, the surface of the light sail is provided with a metasurface structure, and the method comprises the following steps: based on a coordinate system with a geometric center point of the metasurface structure as a coordinate origin, determining target phase distribution representing each position of the metasurface structure under a set condition; the set conditions include total reflection for incident left-handed polarized light and transmission for incident right-handed polarized light to form a Bessel beam; obtaining phase values of the plurality of alternative meta-structure surface units with different geometric parameters after regulation and control; according to the phase value of each alternative meta-structure surface unit, selecting a target meta-structure surface unit from the alternative meta-structure surface units; and the target super-structure surface ...

Подробнее
Номер записи: 16
06-06-2023 дата публикации

Spectrum regulation metasurface design method based on time domain adjoint topological optimization

Номер: CN116227275A
Автор: LUO XIANGANG, XU MINGFENG, PU MINGBO, ZHENG YUHAN, SANG DI, GUO YINGHUI, LI XIONG, MA XIAOLIANG
Принадлежит:

The invention discloses a spectrum regulation metasurface design method based on time domain accompanying topological optimization, and the method comprises the steps: selecting an initial metasurface structure, and obtaining the refractive index distribution of a first structure according to a pixelated structure matrix; performing fuzzy processing and threshold filtering processing to obtain refractive index distribution of a second structure; setting an incident source and a target plane to perform forward simulation to obtain forward electric field information and actual light field time domain information at the target plane; according to the light field time domain information of the incident source, fitting to obtain ideal light field time domain information at the target plane; the correlation degree between the actual light field time domain information and the ideal light field time domain information serves as a target function, and accompanying simulation is carried out to obtain ...

Подробнее
Номер записи: 17
09-05-2023 дата публикации

Optical guide head

Номер: CN116087929A
Автор: LUO XIANGANG, WANG MAOYU, PU MINGBO, XU JUNWEN, LEI JIAN, YANG LONGFEI
Принадлежит:

The invention provides an optical guide head. The optical guide head comprises a fairing; the wide-angle optical system comprises a partial fairing, a transmission lens group designed according to a transmission form, and a first detector; in the light propagation direction, the optical components are sequentially arranged according to the light propagation sequence; the long-focus optical system comprises a partial fairing, an aberration correction lens, a coaxial Cassegrain form lens group, a residual aberration correction lens group and a second detector; a hole is formed in a phase difference correction lens of the long-focus optical system, and the wide-angle optical system is installed between the long-focus optical system and the fairing in a nested mode. The guiding head is simple in structure and easy to popularize and apply, the distance measuring mode does not adopt a radar mode, an optical means is adopted, the confidentiality can be effectively improved through changes of imaging ...

Подробнее
Номер записи: 18
02-05-2023 дата публикации

Local light-transmitting element, light spot center calculation method and device and light pressure arm calculation method and system

Номер: CN116051617A
Автор: LUO XIANGANG, CHE JIANQIANG, ZHANG FEI, PU MINGBO, LI LANTING
Принадлежит:

The invention belongs to the technical field of image processing and optical analysis, and particularly relates to a local light-transmitting element, a light spot center calculation method and device and a light pressure arm calculation method and device. The invention discloses a light spot center calculation method and a light pressure arm calculation method. According to the light spot center calculation method and the light pressure arm calculation method, the light spot center is calculated through a first image collected after light is projected to a local light-transmitting element with 2N light-transmitting slits which are uniformly arranged in a radial shape; the center of the local light-transmitting element is designed to coincide with the center of the pattern formed by the light-transmitting slits, and the center of the local light-transmitting element can be calculated through slit light spots formed by the light-transmitting slits. The center of the light spot and the center ...

Подробнее
Номер записи: 19
06-06-2023 дата публикации

All-optical chaotic space synchronous generation device and method

Номер: CN116232469A
Автор: LUO XIANGANG, ZHOU MENGJIE, XU MINGFENG, ZHANG YIQUN, CHEN QIANG, CHEN SHUANGCHENG, PU MINGBO
Принадлежит:

The invention provides an all-optical chaos space synchronous generation device, comprising: a chaos signal generation module comprising a first laser and a light reflector, a laser signal emitted by the first laser being reflected by the light reflector and then being injected into the first laser for generating a main chaos signal; the free space channel is used for transmitting a main chaotic signal; the signal receiving module comprises an optical fiber delay line and a second laser; the signal receiving module is used for receiving a main chaotic signal transmitted by a free space channel and dividing the main chaotic signal into a first main chaotic signal and a second main chaotic signal. The device provided by the invention is simple in structure, does not need a complex optical path, is simple to operate, can achieve high-quality chaos space synchronization, and has important significance for achieving chaos space secret communication with large capacity, high speed and high confidentiality ...

Подробнее
Номер записи: 20
09-06-2023 дата публикации

Laser ranging device and method

Номер: CN116243331A
Автор: LUO XIANGANG, CHE JIANQIANG, ZHANG FEI, LI XIAOYIN, PU MINGBO
Принадлежит:

The invention belongs to the technical field of laser measurement, and particularly discloses a laser ranging device and method. The device comprises a shell, the shell comprises a positioning face capable of being attached to a plane to be measured, the device further comprises a laser ranging unit, an inertia unit and a calculation unit which are arranged in the shell, and the laser ranging unit is used for measuring the measuring distance between a laser emitting point and a point where laser irradiates the plane to be measured; the inertial unit is used for acquiring a first attitude angle of the inertial unit or the laser distance measuring device when the positioning surface of the laser distance measuring device is attached to the plane to be measured, and is also used for acquiring a second attitude angle of the inertial unit or the laser distance measuring device when the laser distance measuring device is located at a measuring point; and the calculation unit is used for calculating ...

Подробнее
Номер записи: 21
04-07-2023 дата публикации

Multipath chaotic laser generating device and chaotic laser generating method

Номер: CN116387970A
Автор: LUO XIANGANG, PU MINGBO, XU MINGFENG, ZHOU MENGJIE, ZHANG YIQUN
Принадлежит:

The invention provides a multi-path chaotic laser generating device and a laser generating method, and the laser generating device comprises a chaotic laser generating module which is used for generating chaotic laser; the vortex multiplexing module is used for enabling the chaotic laser to carry multi-order OAM information; and the information acquisition module is used for acquiring the chaotic laser which is emitted by the vortex multiplexing module and carries the multi-order OAM information. The device is simple in structure, can achieve double secrecy of an optical communication system, can improve the communication capacity of the system, achieves high-speed and secrecy free space laser safety communication, provides possibility for utilization of chaotic beam space dimensions, and improves the optical communication capacity while achieving information secrecy transmission. When parameters and actual requirements are changed, the technical effect can be achieved only by simulating ...

Подробнее
Номер записи: 22
16-05-2023 дата публикации

Metasurface device for simultaneous detection of spin and orbital angular momentum without alignment and detection method

Номер: CN116125560A
Автор: LUO XIANGANG, CHEN YAN, JIANG MENGNA, ZHANG FEI, PU MINGBO, LI XIONG, MA XIAOLIANG, ZHAO ZEYU
Принадлежит:

The invention discloses a metasurface device for simultaneous detection of spin and orbital angular momentum without alignment and a detection method. The metasurface device sequentially comprises a substrate; the super-structure atomic layer comprises super-structure atoms which are arranged periodically; the metasurface device applies parabolic grating type phase regulation in mirror symmetry to a left-hand circular polarization component and a right-hand circular polarization component of a to-be-detected light beam through cooperative regulation of a geometric phase and a transmission phase. The diffraction spot of the to-be-detected light beam modulated by the metasurface device presents spin angular momentum information and orbital angular momentum information of the to-be-detected light beam, and the spin angular momentum information and the orbital angular momentum information of the to-be-detected light beam are not changed due to position deviation of the to-be-detected light ...

Подробнее
Номер записи: 23
26-05-2023 дата публикации

Automatic photographing system and automatic photographing method

Номер: CN116170659A
Автор: LUO XIANGANG, KE YUAN, SHANG YINGJIE, LU YURAN, GUO YINGHUI, PU MINGBO
Принадлежит:

The invention provides an automatic photographing system and an automatic photographing method. The photographing system comprises a matrix operation module, a photographing module and a sliding table control module, the matrix operation module is used for calling input information, configuring related parameters, establishing a matrix circulation path and issuing an instruction to the photographing module and the sliding table control module; the photographing module is used for controlling a camera to automatically shoot and store pictures; the sliding table control module is used for controlling the sliding table to move according to a matrix circulation path, the camera is carried on the sliding table and can move along with the sliding table, the application further designs an integrated operation mode, and functions of automatic matrix position confirmation, sliding block and camera movement, automatic picture shooting, automatic picture storage and the like are carried out by controlling ...

Подробнее
Номер записи: 24
01-08-2023 дата публикации

Zoom lens and optical detection system

Номер: CN116520588A
Автор: LUO XIANGANG, WANG MAOYU, PU MINGBO, XU JUNWEN, GUO YINGHUI, ZHANG QI
Принадлежит:

The invention discloses a zoom lens and an optical detection system, and the zoom lens comprises a front fixed group, a zoom group, a compensation group and a rear fixed group which are sequentially arranged from an object side to an image plane along an optical axis. The zoom group and the compensation group are configured to be capable of adjusting the distance relative to the front fixed group/the rear fixed group along the optical axis so as to change the focal length of the zoom lens; the rear fixed group is configured to comprise a front lens group and a rear lens group; and the diffraction element is configured to be capable of being cut in or cut out between the front lens group and the rear lens group, so that the zoom lens can be switched between a spectrum detection function and an optical imaging function. The functions of infrared large-view-field imaging, fixed-point detection of a specific area and identification of a target in the specific area are achieved in one optical ...

Подробнее
Номер записи: 25