49 results about "Ccd detector" patented technology

The invention relates to an improved cage type light field imaging system and a debugging method, and belongs to the technical field of light field imaging, and the system comprises a main lens which is used for collecting light spots on an object surface, and enabling the light emitted by the light spots to be imaged on a micro lens; the micro lens is used for separating the light collected by the main lens into light beams in different directions and imaging the light beams on a virtual image plane; the relay lens is used for carrying out secondary imaging on the light beams in different directions to different pixels of a CCD detector of the camera; the relay lens comprises a first lens and a second lens, the focal lengths of the first lens and the second lens are positive, the focal length of the first lens is smaller than that of the second lens, and the magnification of the relay lens is larger than 1: 1. In the debugging process of the system, parallel light beams are arranged in front of the micro lens, and the position of the micro lens is determined in the mode that the parallel light beams vertically enter the micro lens. The system is not influenced by vignetting and distortion generated by the relay lens any more, and the debugging method improves the positioning precision of the micro lens.

The invention belongs to the technical field of fluorescence spectrum collection, and particularly relates to a quasi-three-dimensional fluorescence spectrum collection method and spectrograph based on a software phase locking technology, and the method comprises the following steps: respectively modulating coprime modulation frequencies of a plurality of laser light sources with different wavelengths, and synchronously exciting the laser light sources to the surface of a sample; a fluorescence signal generated on the surface of the sample is received and processed by a linear array CCD detector to obtain a multi-wavelength spectral signal simultaneously containing background light, scattered light and fluorescence components; inputting the multi-wavelength spectral signal into a software phase-locked amplification system, introducing a Costas ring to the software phase-locked amplification system for real-time tracking and correction, and generating a synchronous reference signal consistent with the laser modulation frequency; inputting the synchronous reference signal into a software lock-in amplifier, and extracting a plurality of pure fluorescence spectrum components excited by specific-frequency laser; and synthesizing the plurality of pure fluorescence spectrum components to finally form a quasi-three-dimensional fluorescence spectrum.

The invention provides a calibration method for a zero plane of an FLS mechanism in photoetching machine equipment and the photoetching equipment, and relates to the technical field of photoetching machines. The method comprises the following steps: determining light spot positions collected by a CCD detector when a workpiece table is at different moving heights, and constructing a relation model between the light spot positions and the height of a detected surface based on the moving heights and the light spot positions corresponding to the moving heights, substituting the position of a target light spot corresponding to the central position of the optical axis of the objective lens into the constructed relation model, calculating to obtain the optimal focal plane height, namely the zero plane of the FLS mechanism, calculating to obtain the adjustment height required by the FLS mechanism by using the initial height and the target height of the FLS mechanism, and controlling the FLS mechanism to move along the vertical direction based on the adjustment height, so as to obtain the target focal plane of the FLS mechanism. And zero plane calibration is completed.

The application relates to an improved cage type light field imaging system and a debugging method, and belongs to the technical field of light field imaging. The system comprises a main lens for collecting light spots on an object plane and imaging light emitted by the light spots onto a microlens; the microlens is used for separating the light collected by the main lens into light beams in different directions and imaging the light beams onto a virtual image plane; a relay lens is used for twice imaging the light beams in different directions onto different pixels of a CCD detector of a camera; the relay lens comprises a first lens and a second lens, the focal lengths of the first lens and the second lens are both positive, the focal length of the first lens is smaller than that of the second lens, and the magnification of the relay lens is greater than 1:1. During the debugging process of the system, parallel light beams are arranged in front of the microlens, and the parallel light beams are vertically injected into the microlens to determine the position of the microlens. The system is not affected by the vignetting and distortion generated by the relay lens, and the debugging method improves the positioning accuracy of the microlens.

The application provides a dual-wavelength coaxial aiming system capable of automatic collimation, which is used for attitude adjustment and target positioning aiming of a picosecond terminal optical path cone target of inertial confinement fusion (ICF). The system comprises automatic collimation optical paths and aiming optical paths of different working wavelengths; the automatic collimation optical paths comprise a light source, a light splitting prism, a secondary mirror, a reflecting mirror and a CCD detector; the aiming optical paths are composed of a primary mirror, a secondary mirror, a lens group, a light splitting prism and a CCD detector group, and each optical element is coaxial; the system multiplexes the secondary mirror, and realizes automatic collimation and positioning aiming through different wavelength transmission and reflection respectively; the system adopts combination of flint and crown glasses to correct chromatic aberration of different wavelengths; the image planes of the dual-wavelength optical paths are located at the same position; and the system adopts a coaxial two-mirror structure, and is compact in structure and small in size.

The utility model discloses a wafer detection device which comprises a workbench, a fixing mechanism and a detection mechanism, and one side of the workbench is provided with a mounting rack. The fixing mechanism comprises a fixing disc and a plurality of fixing rings, the fixing disc is arranged on the surface of the workbench, a plurality of fixing grooves distributed in a concentric circle mode are formed in the surface of the fixing disc, a plurality of fixing holes are evenly formed in the edges of the fixing grooves, the diameters of the fixing rings correspond to the fixing grooves in a one-to-one mode, and fixing blocks corresponding to the fixing holes are arranged at the bottoms of the fixing rings. The fixing blocks can be inserted into the fixing holes; the detection mechanism comprises a laser generator, a CCD detector, a coaxial light generator and a controller, the laser generator, the CCD detector and the coaxial light generator are sequentially arranged on the mounting frame, the controller is arranged adjacent to the mounting frame, and the laser generator, the CCD detector and the coaxial light generator are all located above the fixing disc and electrically connected to the controller. According to the technical scheme of the utility model, wafers of different sizes can be replaced and detected rapidly and conveniently, time and labor are saved, and the working efficiency is improved.

An ultraviolet photographic device for investigation relates to the field of cameras and comprises a device body, a lens, a liquid crystal display screen, a data interface and a power interface which are mounted on the surface of the device body, an ultraviolet photographic objective lens mounted in the lens, an exposure lamp and a switch button which are both mounted on the upper surface of the device body, and a power module mounted in the device body, the power supply module is respectively connected with the CCD detector, the liquid crystal display screen, the exposure lamp, the switch button, the data interface and the power supply interface, the power supply module is externally connected with a power supply through the power supply interface, and the power supply module is connected with the power supply through the switch button to supply power to the CCD detector, the liquid crystal display screen, the exposure lamp and the data interface; the CCD detector is connected with the liquid crystal display screen, and an image on the image surface of the CCD detector is displayed through the liquid crystal display screen; and the CCD detector is connected with the data interface. The utility model has the advantages of low cost, light weight, small size, high imaging quality and strong imaging stability.

The invention discloses a device and a method for testing defocused spots and color deviation of an optical lens, and solves the problems that the testing precision is low and the spectral range of a tested optical system is limited due to the dependence on human eye observation, and the existing testing device is complicated to install and debug and low in testing efficiency. The CCD detector is used as an imaging unit, imaging testing can be carried out on the optical lens to be tested in the whole spectrum range, the energy distribution characteristics of the defocused spots of the optical lens can be truly reflected, and the actual application requirement of an optical system is met. The target surface of the CCD detector is directly imaged, high-precision and high-efficiency measurement of the defocused spots and the color deviation can be realized in cooperation with image processing software and a corresponding algorithm in the controller, and the measurement precision can reach 0.3 mu m.

The invention relates to the technical field of optical imaging control, in particular to a self-adaptive defocusing compensation device and method based on a laser spot, which utilizes a simple optical module and hardware circuit design, places a temperature sensor into an optical system, and calculates a defocusing amount through the joint calculation of temperature and a defocusing coefficient. The limitation that a traditional single defocusing detection method is easily influenced by noise by only utilizing geometrical optics is broken through, and a temperature variable is converted into a measurable feed-forward quantity from an interference factor by utilizing a global calibration method of temperature-defocusing coefficient and temperature-CCD detector defocusing displacement and a closed-loop adjustment method of coarse adjustment and fine adjustment in sequence; by combining the astigmatism method real-time defocusing detection technology, rapid defocusing compensation response can be achieved for defocusing amount generated by slowly changing temperature, meanwhile, the anti-interference capability and the control precision of the system are improved, and the imaging quality is guaranteed.

The application belongs to the technical field of aerospace, and provides a driving circuit supporting multi-degree-of-freedom image motion compensation function, which comprises a camera controller, a multi-degree-of-freedom image motion compensation timing generator, a vertical driving circuit, a two-dimensional direction charge transfer area array CCD detector, a horizontal driving circuit, a front-end signal processing circuit and an interface circuit. The camera controller is connected with the multi-degree-of-freedom image motion compensation timing generator. The multi-degree-of-freedom image motion compensation timing generator is connected with the vertical driving circuit, the two-dimensional direction charge transfer area array CCD detector and the horizontal driving circuit respectively. The vertical driving circuit and the horizontal driving circuit are further connected with the two-dimensional direction charge transfer area array CCD detector. The two-dimensional direction charge transfer area array CCD detector is connected with the front-end signal processing circuit. The front-end signal processing circuit is connected with the interface circuit. The application can realize on-chip compensation of roll, pitch, yaw and multi-degree-of-freedom dynamic motion without moving parts.

This invention relates to a continuous three-dimensional particle field reconstruction method based on single-light-field imaging using EM deconvolution, belonging to the field of optical imaging technology. This method employs a light field camera to capture light field images of a discretized three-dimensional flow field, acquiring the light intensity information of scattered light emitted by particles on each pixel of a CCD detector. Based on the light intensity information, a weight matrix for each voxel is calculated, and the entire weight matrix is ​​loaded only once. The nth frame of the light field image is loaded, and the non-zero pixels in the nth frame are identified. The non-zero pixel sequence formed by the scattered light from tracer particles is extracted. An EM deconvolution algorithm is used to iteratively calculate the non-zero pixel sequence, updating the intensity of each voxel, thereby reconstructing the three-dimensional particle field of a single frame. The above steps are repeated to complete the reconstruction of the three-dimensional particle field from multiple frames of high temporal resolution light field images, resulting in higher reconstruction accuracy and consistency, and less time consumption.

The invention discloses an automatic adjustment method for AD9814 parameters in a CCD 275 imaging circuit, and belongs to the technical field of multichannel CCD detector imaging. The method comprises the steps that system parameters are initialized, and dark field images are collected; calculating a signal difference value of each channel and determining a gain sequence; collecting a background field image, and calculating a bias sequence; and finally, converting gain and bias parameters into AD9814 register code values and automatically configuring the AD9814 register code values. According to the method, the problem of image non-uniformity caused by multi-channel reading difference is effectively solved, and the accuracy and efficiency of parameter adjustment are remarkably improved.

The application provides a coaxial aiming system for target point positioning and aiming of a picosecond terminal optical path of inertial confinement fusion (ICF), which is composed of a projection mirror, a window, a main mirror, a secondary mirror, a lens group, a cylindrical mirror and a CCD detector, and each optical element is coaxial; the system multiplexes the projection mirror and the window in the picosecond terminal optical path, and does not need to additionally increase a target chamber flange window; the cylindrical mirror is used to correct the astigmatism aberration introduced by the large-angle inclined projection mirror; considering that the projection mirror needs to change the angle to accurately guide the position change of the laser landing point, under the illumination light source with the wavelength of 590nm±7.5nm and the working wavelength of 1053nm, the projection mirror is optimized for different use angles, and the high imaging resolution requirement can be realized; the coaxial two-mirror structure is adopted, and the structure is compact and small in size. In addition, the Cassegrain structure composed of the main mirror, the secondary mirror and the lens group and the cylindrical mirror are independently designed, and the later assembly and adjustment is facilitated.

This utility model relates to a CCD-based waste sorting mechanism, comprising: a mounting frame equipped with a CCD detector; a first feeding trough located at the upper end of the mounting frame; a second feeding trough located at the upper end of the mounting frame; a first discharge channel located inside the mounting frame, communicating with the lower end of the first feeding trough; a second discharge channel located inside the mounting frame, communicating with the lower end of the second feeding trough; a receiving bin located inside the mounting frame, below the first discharge channel; and a waste bin located inside the mounting frame, below the second discharge channel and communicating with its outlet. This utility model uses the CCD detector to identify the appearance of materials. The control system analyzes the data and, in conjunction with a robotic arm, quickly sorts the materials. It can distinguish between qualified and unqualified products and send them to the corresponding areas, resulting in high sorting efficiency and reducing the risk of misoperation.

The utility model discloses a compact imaging spectrometer based on starlight occultation technology. The compact imaging spectrometer comprises a front optical system, a slit, a spectral imaging system and a CCD detector which are sequentially arranged along an optical path. The front optical system comprises a primary reflector and a secondary reflector, the slit is arranged perpendicular to the horizontal direction, and the secondary reflector, the primary reflector and the slit are sequentially and coaxially arranged. According to the spectrograph disclosed by the utility model, the absorption spectrum of oxygen molecules in the atmosphere can be obtained by utilizing a starlight occultation technology, relatively accurate oxygen density can be measured under the high spectral resolution of 0.1 nm, and environmental information such as atmospheric temperature, atmospheric density and the like can be indirectly obtained.

The invention provides a non-contact gas pressure detection device and method based on a dual-wavelength laser interference method. The device comprises a first laser, a second laser, a first total reflection mirror, a first double-color beam combiner, a second total reflection mirror, a beam expanding system, a beam splitter, a third total reflection mirror, a fourth total reflection mirror, a gas wedge structure measuring cavity, a beam combiner, a second double-color beam combiner, a first focusing lens, a second focusing lens, a first CCD detector, a second CCD detector, a control terminal and a to-be-measured gas source. The gas wedge structure measuring cavity comprises a reference gas cavity and a wedge-shaped gas cavity to be measured, the first laser and the second laser respectively emit a first laser beam and a second laser beam with different wavelengths, and the control terminal analyzes and processes laser interference fringe images generated by the first CCD detector and the second CCD detector to obtain gas pressure; according to the invention, high-precision non-contact measurement of the gas pressure in the cavity can be realized, measurement can be realized in a larger working range, and the device has the advantages of high accuracy and reliability.

The invention provides a multispectral imaging system and method, and the system comprises a point light source which is used for carrying out the pre-calibration of the imaging system, target light is divided into two paths after passing through a beam splitter, one path of light is converged through a lens and then is imaged on a CCD detector, and the other path of light is imaged on a CCD detector; the other path of light encodes the spectral information of the target into a spatial speckle pattern through a scattering medium and images on the other CCD detector, and the processor system reconstructs a multispectral image by combining a deconvolution algorithm and a neural network algorithm; deconvolution reconstruction is carried out on speckles obtained by the spectrum detection path by using a calibrated system point spread function to obtain initial output; and performing multispectral image reconstruction through a convolutional neural network by combining the image obtained by the space detection path with the initial output. The scattering medium is used for spectral resolution, so that the size and the cost of the system are greatly reduced; and meanwhile, physical prior is obtained through deconvolution and double-path detection and is input into the convolutional neural network for result reconstruction, so that the robustness to noise is improved.

The invention relates to a method for stably slitting and rolling a diaphragm, which is applied to diaphragm slitting equipment, and is characterized in that the diaphragm sequentially passes through an inclined roller, a tension detection roller, a bending roller, a central roller and a contact roller from a mother roll, and then is slit and rolled to form a plurality of small rolls; the roller surface temperature of the contact roller is adjustable; a CCD (Charge Coupled Device) detector is arranged above the contact roller; the method comprises the following steps: 1) the contact roller is in a room temperature state; the CCD detector acquires an image of the surface of the diaphragm in real time and transmits the image to the PLC; (2) the PLC processes the image information through visual software and judges whether the diaphragm is wrinkled or not according to the image information; the method comprises the steps of (1) detecting the surface of a diaphragm through a CCD detector, (2) detecting the surface of the diaphragm through the CCD detector, (3) controlling the contact roller to start heating if the diaphragm has wrinkles, (4) continuously detecting the diaphragm through the CCD detector and analyzing and judging whether the surface of the diaphragm has wrinkles through the PLC, (5) controlling the contact roller to stop heating through the PLC when the diaphragm does not have wrinkles, and (6) repeating the steps (2) to (5) until slitting and rolling are finished.

The present invention provides a relative radiometric calibration method and device for a remote sensing image with a 90-degree yaw, and relates to the technical field of image processing. The method comprises the following steps: acquiring original yaw data and rotating the original yaw data by 45 degrees to obtain target yaw data, wherein the original yaw data is a remote sensing image of a ground object collected by CCD detectors in a CCD linear array when the CCD linear array is yawed by 90 degrees; performing Savitzky-Golay filtering on the target yaw data to obtain a theoretical grayscale value of the CCD detector; calculating detector parameters of the CCD detector based on a least squares algorithm, the theoretical grayscale value of the CCD detector, and the target yaw data, wherein the detector parameters include a gain parameter and a bias parameter; and performing relative radiometric calibration on the original yaw data based on the detector parameters to obtain a relative radiometric calibration result of the original yaw data, thereby solving the technical problem of low accuracy of existing relative radiometric calibration methods for remote sensing yaw images.

The utility model relates to the technical field of CCD detection carriers, in particular to a CCD detection carrier with a limiting mechanism, which comprises a base, the limiting mechanism, a lifting mechanism, a CCD detector and a light supplementing lamp, the limiting mechanism is mounted at the top of the base, the lifting mechanism is mounted at the rear end of the top of the base, the lifting mechanism is mounted at the front end of the top of the lifting mechanism, and the CCD detector is mounted on the lifting mechanism. A light supplementing lamp is installed at the front end of the middle of the lifting mechanism, and the limiting mechanism comprises a sliding rail, a motor, a connecting rod, a threaded rod, a sliding block, a first clamping plate and a rubber pad. According to the utility model, the limiting mechanism is arranged, and an object to be detected can be clamped in the middle of the base through the limiting mechanism, so that the detection is convenient, and the detection error caused by the sliding of the object during the detection of the CCD detector can be prevented. The lifting mechanism is arranged, the height of the CCD detector and the height of the light supplementing lamp can be freely adjusted through the lifting mechanism, and use is convenient.

A low-cost, multi-angle particulate matter light scattering signal detection system and method belongs to the field of particulate matter detection technology. The purpose of this invention is to achieve convenient, efficient, and simple detection of multi-angle particulate matter scattered light information. Key technical points: The outlet of a blower with a speed controller is connected to the housing. The air blown into the housing by the blower disperses the sample particles within the housing. The fan assembly is used to suspend the particles within the housing. A laser beam emitted by a laser is focused onto the particulate matter sample output from the particulate matter outlet pipe, and then sequentially passes through an aperture and objective lens to focus the particulate matter light scattering signal onto a CCD detector. The CCD detector outputs the acquired particulate matter scattered light field image to a host computer, which processes the image to obtain a distribution map of the particle scattered light intensity.

The present application belongs to the technical field of online detection of laser welding quality, and particularly relates to a sub-atmosphere laser welding penetration online detection system based on high-resolution spectroscopy and a detection method thereof. Laser generated by a laser (1) is emitted by a focused laser gun head (2) to act on a workpiece to be welded (3). The laser gun head (2) is located inside a sub-atmosphere test cabin (5), and the workpiece to be welded (3) is placed on a work platform (4) inside the sub-atmosphere test cabin (5). The movement of the workpiece to be welded (3) during the welding process is realized by driving a motor of the work platform (4) inside the sub-atmosphere test cabin (5). A variable focusing lens (8) is installed at the input end of a high-resolution spectrometer (6). A slit (7) exists between the variable focusing lens (8) and the high-resolution spectrometer (6). The high-resolution spectrometer (6) is connected to a data analysis processing unit through a nanosecond enhanced CCD detector (9). The present application solves the technical blank problem existing in the sub-atmosphere laser welding penetration detection.

The invention relates to a self-adaptive fast digital holographic microscopic imaging measurement system based on zero-order frequency spectrum suppression and a working method, and belongs to the technical field of optical measurement. Comprising an optical fiber laser, a single-mode optical fiber beam splitter, a first optical fiber collimator, a rotating motor, a second optical fiber collimator, a photoelectric counting sensor, a rotating fan blade, a first microscope objective, a test sample, a second microscope objective, a reflecting mirror, an unpolarized splitting prism, a CCD detector and a computer, an output shaft of the rotating motor is connected with the center of the rotating fan blade and used for driving the rotating fan blade to rotate around the center point; the rotating fan blades in special shapes are designed, the rotating motor is used for assisting, and the method aims at simply and effectively eliminating the influence of the zero-order frequency spectrum with a low-cost scheme, improving the utilization rate of the space bandwidth product and achieving protection of high-frequency detail information of samples.

According to the novel large-core-diameter double-core optical fiber, the preparation method and the micro-stress monitoring system and method based on the double-core optical fiber, the novel double-core optical fiber has the advantages of being large in core diameter, extremely narrow in core spacing and low in numerical aperture, strong evanescent field coupling between double cores is achieved through the extremely narrow core spacing and consistent double-core parameters, and the micro-stress monitoring system and method based on the novel large-core-diameter double-core optical fiber are obtained. Balance can be destroyed when external micro stress is sensed, obvious change of the light intensity of the double cores is caused, and high-sensitivity monitoring of the external stress is achieved through the linear relation between the light intensity ratio of the double cores and the magnitude of the external stress; the MCVD process is matched with the stacking-pulling method to prepare the double-core optical fiber with the pole-core distance, the wall thickness limit of the traditional drilling technology is broken through, the edge distance between cores of the double-core optical fiber is smaller than 3 microns, and the prepared double-core optical fiber has extremely high optical coupling sensitivity; the micro-stress monitoring system and method based on the double-core optical fiber, the low-coherence light source and the CCD detector have the advantages of being simple in structure, low in cost, rapid in response and the like.

The present application relates to the field of seeing detection, and particularly relates to a large aperture telescope high dynamic camera seeing detection system and a detection method, wherein the detection system comprises: a fiber laser for emitting a detection beam; a mirror group distributed around the top of a to-be-detected mirror surface for reflecting the detection beam multiple times so that the detection beam passes through the detection area of the to-be-detected mirror surface multiple times; a microlens array for dividing the distorted wavefronts passing through the detection area of the to-be-detected mirror surface multiple times into a plurality of distorted sub-wavefronts and focusing the distorted sub-wavefronts onto a CCD detector array; the CCD detector array, wherein the CCD detectors are arranged in steps, for receiving the defocused and non-defocused distorted sub-wavefronts and obtaining different degrees of spot intensity; a neural network taking different spot intensities as input and camera seeing Zernike solution as output, and finally obtaining the camera seeing. The present application can perform wide-range seeing detection and has the characteristics of large flux and high efficiency.

The invention relates to a rapid hyperspectral light field Raman body imaging system and method, and the system employs wide-field imaging, combines a multi-dimensional information coding unit with a CCD detector, carries out the integrated coding of the panoramic depth information of a sample, and employs an adjustable spectrum filtering sub-module to achieve the integrated coding of the panoramic depth information of the sample. And high-quality acquisition of three-dimensional space and Raman hyperspectral information under the wavelength required by the sample can be realized only by single exposure. According to the imaging method, a light field Raman body imaging algorithm is provided, data priori of different stages in the light field imaging process is constructed respectively, and the training processes of light field denoising, a supramolecular network and a three-dimensional reconstruction sub-network are guided in sequence, so that rapid and high-fidelity isotropic resolution three-dimensional reconstruction of a low-signal-to-noise-ratio light field image is realized. According to the method, a multi-dimensional image rapid and high-resolution three-dimensional visualization processing technology system integrating traditional optics, information optics and computational optics is constructed, the imaging efficiency and precision are remarkably improved, and efficient three-dimensional information capture and high-quality reconstruction are achieved.

The utility model discloses PCB (Printed Circuit Board) detection equipment, which belongs to the technical field of detection devices and comprises a detection table, a PCB, a bottom plate, a top plate, a CCD (Charge Coupled Device) detector, a moving assembly, an adjustable supporting assembly, a clamping assembly and an overturning assembly, the bottom plate is fixedly installed at the top of the detection table, the top plate is arranged above the bottom plate, the moving assembly is installed at the bottom of the top plate and used for adjusting the use position of the CCD detector, and the two sets of adjustable supporting assemblies are arranged; according to the utility model, through the arrangement of the moving assembly, the CCD detector can be driven to move so as to carry out appearance detection on the PCB, through the arrangement of the clamping assembly, the PCB needing to be detected can be clamped and fixed above the bottom plate, and after one side of the PCB is detected, the PCB can be overturned through the overturning assembly so as to carry out appearance detection on the other side of the PCB; through the arrangement of the device, appearance detection can be carried out on the two surfaces of the PCB through one-time clamping, and the detection efficiency is high.

A microscopic Raman spectroscopy device includes laser oscillators (excitation light sources) that emit excitation laser lights (excitation lights) of different wavelengths, a spectrometer that uses a diffraction grating to disperse Raman scattering light emitted from a sample by irradiation with the excitation laser light from the laser oscillator, and a CCD detector that detects and photoelectrically converts the Raman scattering light dispersed by the spectrometer. The spectrometer includes incident apertures, a plurality of (two) optical systems that guide the Raman scattering light incident from the incident aperture to the diffraction grating, and a plurality of light beams dispersed by the diffraction grating are incident on one imaging lens in tandem.

The invention relates to the technical field of industrial detection, and particularly discloses a shaded pole motor CCD detector which comprises a detection table and a detection main body, the detection main body is fixedly installed on the upper surface of the detection table, a CCD sensor is arranged in an inner cavity of the detection main body, and a rotating rod is rotationally connected to the inner wall of the detection table; through the supporting assembly and the positioning assembly, the workpiece can be positioned when the position of the to-be-detected workpiece deviates, the position of the deviated workpiece can be corrected, the position accuracy of the to-be-detected workpiece is guaranteed, the situation that the detection size measurement error exceeds the standard is avoided, in addition, when the position of the to-be-detected workpiece is accurate, it can be found in time, and the detection accuracy is improved. A large number of unqualified products are prevented from flowing into subsequent procedures or markets, the precision of detection equipment is improved, the rejecting assembly can eject the products out of a clamp for clamping when rejecting the defective products, abrasion to the clamp during pushing is prevented, collision with the equipment in the collecting process is reduced, damage to workpieces is prevented, and the detection efficiency is improved. And the subsequent maintenance cost is reduced.

The application is a CCD temperature control system and control method using a multi-stage TEC stack, comprising a host computer, a CPU control processing module, a TEC drive and temperature acquisition module, and a CCD detector refrigeration assembly; the CPU control processing module is connected with the host computer and the TEC drive and temperature acquisition module, and the CCD detector refrigeration assembly is connected with the TEC drive and temperature acquisition module; the application can automatically adjust the upper TEC control parameters according to the remote temperature CCD temperature change model, meet the requirements of temperature control rate and temperature control accuracy within a certain range, and automatically adjust the lower TEC control parameters according to the remote temperature CCD temperature change model, the temperature control accuracy and the requirements of target temperature, so as to ensure the temperature control accuracy and expand the temperature control depth.