61 results about "Contact image sensor" patented technology

The present application provides an array-type image detection device, including two columns of imaging arrays arranged at intervals along a first direction, each column of the imaging array includes a plurality of imaging modules arranged at intervals along a second direction, each imaging module includes a magnifying lens and an imaging chip arranged in sequence along its optical axis; each imaging module magnifies the image to be detected located in its detection area and images it in its imaging area and is acquired by the imaging chip located in its imaging area; and except for the detection areas located at the head and tail sides of the second direction, each detection area has overlapping parts with other detection areas at both ends along the second direction. The array-type image detection device provided by the present application can effectively solve the problems of low resolution of existing contact image sensors, difficulty in detecting high-resolution images, and detection blind spots when performing magnified detection, and can obtain a clear magnified image of the image to be detected within the full-frame range.

The invention discloses a data caching method for a CIS (Contact Image Sensor) linear array camera, belongs to the field of image acquisition and processing, and particularly designs a back-end data caching technology for a CIS linear array sensor. The main purpose is to cache segmented images collected by an ADC to an FPGA and output the segmented images to a high-speed interface. The data sequence is rearranged in the data writing stage, a row of complete images in a Z shape are written into a plurality of RAMs with the calculated number, and a fixed number of RAMs are selected in sequence in the reading stage and output to a rear-end module. Data caching and image splicing processing from ADC data to a high-speed interface are realized, and the system has the characteristics of high speed, large bandwidth, high real-time performance and high development efficiency.

A contact image sensor includes a preset scanning plane used for the surface to be scanned to map to the original copy. The contact image sensor includes: a timing circuit: for self-generating light source control signal LRDT and line scan control signal TRIG1; a lens: for collecting reflected light emitted by a light source reflected by the original copy and emitting the reflected light onto a photoelectric conversion chip for converting received optical signals into electrical signals; and a data processing unit: emitting trigger pulse TRIG according to the encoder transmitting the object to be detected, receiving and processing electrical signals output by the photoelectric conversion chip that has the same size of the photoelectric signal output, ensuring the output stability, dynamic range and sensitivity of the image sensor.

The invention belongs to the field of CMOS (Complementary Metal Oxide Semiconductor) devices, and particularly relates to a monoclinic ADC (Analog to Digital Converter) and CIS (Contact Image Sensor) chip based on a look-ahead adaptive CMS ( The CMS quantization module comprises each CMS quantization module connected to each column in a pixel array and a dynamic slope generation module; the CMS quantization module comprises a comparator, a counter, a column level judgment module and an adder-subtractor. The dynamic slope generation module comprises a slope generator, a slope modulation module and a global judgment module. The ramp generator is used for generating a ramp signal corresponding to a standard ramp, a full-scale ramp or a self-adaptive ramp according to the received modulation signal, and sending the ramp signal to the comparator in the corresponding row. And the global judgment module is used for identifying the maximum value and the minimum value of the primary quantization results of the pixel units in the same row, and further determining the swing interval of the adaptive slope in the secondary quantization. The slope modulation module is used for outputting modulation signals capable of generating three types of slopes. According to the invention, the problem that an existing monoclinic ADC is difficult to give consideration to quantization precision and quantization time at the same time is solved.

The invention discloses a contact image sensor. The image sensor comprises: a control unit (11) for receiving an output pulse from an encoder, the control unit (11) comprising: a comparator (11_1), a register (11_2) and a timing generation circuit (11_3); the comparator (11_1) is used to compare the output pulse with a preset scanning cycle stored in the register (11_2) to obtain an illumination control signal; the timing generation circuit (11_3) is used to generate a scanning trigger signal, and determine the output trigger signal based on the output pulse; the illumination unit (12) is used to illuminate a detection object based on the illumination control signal; the scanning unit (13) is used to scan the detection object based on the scanning trigger signal to obtain a scanning signal; the data processing unit (14) is used to process the scanning signal to obtain an initial scanning result; the data output unit (15) is used to obtain a target scanning result based on the initial scanning result, and output the target scanning result based on the output trigger signal.

The invention discloses a contact image sensor based on adaptive multispectrum, which relates to the technical field of image sensing and comprises a self-focusing lens array, a liquid lens array, an optical filter array, a driving circuit, an image sensing element and a control unit, according to the invention, by integrating the multi-band liquid lens array and the one-to-one corresponding optical filter arrays and combining an independent driving circuit and an adaptive control algorithm, mechanical-free automatic focusing in a wide spectral range is realized, a mechanical moving part in a traditional scheme is not needed, the problem of a complex structure caused by mechanical switching in multi-spectral imaging is solved, and the imaging efficiency is improved. By configuring an independent voltage regulation and control mechanism for each liquid lens, focal length requirements of different spectral bands can be accurately matched, the problem that part of band images are blurred due to a fixed focal length is avoided, delay generated by mechanical switching is eliminated by means of the quick response characteristic of the liquid lenses, and the multi-spectral scanning efficiency is improved.

Recognizing magnetic ink characters in an automated teller machine and, more particularly, recognizing magnetic ink characters in an automated teller machine. Results of optical character recognition (OCR) are compared based on an image acquired through a contact image sensor (CIS) provided in an authentication unit and character-based waveforms of magnetic ink characters acquired through an MR sensor. Whether a bill is legitimate is authenticated, and thus correct reading of magnetic ink characters printed on a check is realized. The structure of the authentication unit can be simplified so that correct recognition of the magnetic ink characters printed on the check in a normal automated teller machine is supported without a high-resolution MICR sensor, and the cost of manufacturing the automated teller machine can be effectively reduced.

The utility model discloses a housing with a novel joint line position design and a contact type image sensor thereof, the housing is provided with a lens mounting groove for mounting a cylindrical lens and a substrate mounting surface for mounting a substrate, and the groove bottom of the lens mounting groove is of a non-closed structure to form a light emitting channel. A planar lens mounting bearing platform is formed above the light emitting channel, the light emitting channel is located over the photosensitive sensor on the substrate, the bottom of the light emitting channel does not make contact with the substrate, the two sides of the light emitting channel are vertical planes, and bottom edges of the vertical planes of the light emitting channel are male and female die joint line positions. And inclined planes are arranged on two sides below the light emitting channel to form a cavity with a wide lower part and a narrow upper part. The optimized shell is applied to the contact type image sensor, a space is increased on the shell to form a non-contact surface, a joint line position is placed on the non-contact surface, and when the joint line position is lifted up relative to a substrate and assembled, the joint line position is not in contact with other parts, so that the probability that burrs at the joint line position fall off is reduced.

The utility model relates to the technical field of urine dry chemical analysis and detection, in particular to a test paper conveying device convenient to disassemble and assemble, which comprises a test paper strip conveying belt, a guide mechanism, a CIS (Contact Image Sensor) detector, a sample dropping deflector rod mechanism and a driving mechanism, the test strip conveying belt comprises a driving round belt wheel, a driven round belt wheel, a gear, a connecting frame, a conveying belt body, a first bearing, a second bearing, a fixing plate and a first fastening screw, the connecting frame is pushed in along the guide mechanism, and the included angle between the round corner at the top end of the connecting frame and the guide mechanism reaches a point contact position, so that accurate positioning is realized; the connecting frame is fastened on the guide mechanism through the fixing plate and the first fastening screw, and when the test strip conveying belt is disassembled and maintained, the conveying belt body on the connecting frame can be cleaned and replaced only by disassembling the fixing plate and the first fastening screw and pulling the connecting frame out of the guide mechanism; the convenience of cleaning, replacing and maintaining the conveying belt of the traditional test paper conveying device is improved.

An apparatus for inspecting an electrode for a secondary battery, according to one embodiment of the present invention, comprises a front surface inspector including: a front inspection camera for inspecting a front surface of an electrode; and a side illumination that irradiates light onto the front surface of the electrode at a predetermined angle with respect to the front inspection camera. In one embodiment of the present invention, the front inspection camera may be a contact image sensor (CIS) camera, and a single camera may simultaneously perform inspection of a notched tab and width and surface inspection of the electrode.

A cleaning device (100), a control method, an apparatus, a computer program product, a storage medium, and a cleaning system (300). The cleaning device (100) comprises a contact image sensor module (110), the contact image sensor module (110) being used for collecting a surface image of a surface to be cleaned (114), and the surface image being used for analysis of surface information of said surface (114).

The present disclosure provides a contact image sensor, the image sensor including a control unit (11), an illumination unit (12), a scanning unit (13), a data processing unit (14) and a data output unit (15), the control unit (11) configured to receive an output pulse from an encoder, the control unit (11) including a comparator (11_1), a register (11_2) and a sequence generating circuit (11_3), the comparator (11_1) comparing the output pulse with a predetermined scanning period stored in the register (11_2) and generating an illumination control signal. the sequence generating circuit (11_3) is configured to generate a scan trigger signal and determine an output trigger signal based on the output pulse; the illumination unit (12) is configured to illuminate the detection target based on the illumination control signal; the scanning unit (13) is configured to scan the detection target based on the scan trigger signal and obtain a scan signal; the data processing unit (14) is configured to process the scan signal and obtain an initial scan result; and the data output unit (15) is configured to obtain a target scan result based on the initial scan result and output the target scan result based on the output trigger signal.

The invention discloses a manufacturing method of a metal grating, which comprises the following steps of: performing first etching through a photoetching process, forming a first groove in a hard mask layer, forming the hard mask layer on a metal layer, forming the metal layer above an insulating layer, forming the insulating layer on the back surface of a wafer, and forming a CIS (Contact Image Sensor) on the back surface of the wafer, the metal layer is used for forming a metal grating of the CIS; etching for the second time, removing the hard mask layer and the metal layer below the first groove, forming a second groove in the metal layer, and exposing the insulating layer at the bottom of the second groove; wherein the second etching comprises a first stage and a second stage which are sequentially carried out, the reaction gas used in the etching process of the first stage comprises argon, and the reaction gas used in the etching process of the second stage comprises chlorine and oxygen. According to the manufacturing method of the metal grating provided by the embodiment of the invention, the probability of generation of the side digging defect of the interface of the metal layer and the oxide layer is reduced.

The present invention provides a contact image sensor. The contact image sensor includes: a frame, including a support frame for forming a receiving cavity; a light source assembly, at least part of which is located in the receiving cavity, and the light source assembly includes a light source for emitting a detection light beam; a diffuse light structure, which is arranged in the receiving cavity, and the diffuse light structure is located on one side of the light source, and the diffuse light structure has a diffuse reflection surface for diffuse reflection. Based on the diffuse reflection principle, at least part of the detection light beam is diffusely reflected by the diffuse reflection surface to form a scanning light beam that is incident on an object to be scanned at different incident angles; a light receiving part, including a lens located in the receiving cavity and used to converge light. Based on the reflection principle, at least part of the scanning light beam is reflected by the object to be scanned and then incident on the lens. The technical solution of the present invention solves the problem that the contact image sensor in the prior art is prone to uneven brightness of the image when scanning an object to be scanned with a bright surface and / or an uneven surface.

The invention discloses a CIS (Contact Image Sensor) image data noise reduction method, which comprises the following steps of: collecting night video image data by a CIS sensor, and carrying out median filtering processing on the night video image data; dividing the processed night video image data into a training set, a verification set and a test set; constructing a deep convolutional neural network, normalizing the processed data in the training set, and training the deep convolutional neural network; evaluating the training model by using the obtained test set and adopting a peak signal-to-noise ratio (PSNR); inputting the obtained verification set into a training model for processing and evaluation, and adjusting the number of network layers and the number of filters according to an evaluation result to obtain an optimal deep convolutional neural network model; and carrying out noise reduction processing on the CIS image data by using the obtained optimal deep convolutional neural network model to obtain image data after noise reduction. The method has the advantages of improving the noise reduction effect, increasing the video processing speed and the like.

The invention relates to an inspection apparatus for the image-sensor-based inspection of an object (3), the inspection apparatus (1) comprising: a transport device for transporting a physical object (3) to be inspected along a transport path; an image sensor system (6) having at least one image sensor (35) for scanning at least part of the object (3), by image sensor, along a viewing direction (18) while the object (3) is continuously moved by the transport device along the transport path relative to the image sensor system (6); and an illumination device for illuminating a surface to be inspected, of the object (3), in a wavelength range which can be captured by the image sensor system (6), so that the image sensor system (6) can at least partly capture, by image sensor, the surface in a surface region illuminated in this way. The image sensor system (6) has a number N, where N ≥ 1, of digital line scan cameras (7) which are individually or cumulatively in the form of a contact image sensor, CIS, and which each have a plurality of camera pixels (27) arranged in a line, each camera pixel having a lens (28), and the lines of the N line scan cameras (7) each extend transversely to the transport path. The illumination device is configured such that, in order to illuminate the surface to be inspected, of the object (3), the illumination device generates light and directs said light along a beam path (24), the direction of which coincides with the viewing direction (18) or differs therefrom by at most 30°.

A contact image sensor is provided, including: a control unit configured to receive output pulses from an encoder, where the control unit includes a comparator configured to compare the output pulses with a preset scanning cycle stored in the register to obtain an illumination control signal; an illumination unit configured to illuminate an object to be detected based on the illumination control signal; a scanning unit configured to scan the object to be detected based on the scanning trigger signal to obtain a scanning signal; a data processing unit configured to process the scanning signal to obtain an initial scanning result; and a data output unit configured to obtain a target scanning result based on the initial scanning result and output the target scanning result based on the output trigger signal.

A device (100) for detecting defects in an anode or cathode of a battery, the anode or cathode comprising a film (1) of an electrically conductive material, the film being at least partially coated with a coating (3) on its two opposite faces. The apparatus comprises a controller (10) and a device arranged along the transport path of the anode or cathode to be controlled, the device comprising: a contact image sensor (12); a beam splitter (14); a first illuminator (16) that sends a first light beam (A) on a beam splitter that deflects the first light beam towards a first face of the anode or cathode; a second illuminator (18) which sends a second light beam (B) of substantially glancing light towards the first face. The controller drives the illuminators to emit respective light beams in a synchronized and alternating manner with each other. The contact image sensor captures an image of the first surface while being illuminated, and the controller detects the presence of a defect based on the captured image.

Disclosed is a cost-effective method to fabricate a multifunctional collimator structure for contact image sensors to filter ambient infrared light to reduce noises. In one embodiment, an optical collimator, includes: a dielectric layer; a substrate; a plurality of via holes; and a conductive layer, wherein the dielectric layer is formed over the substrate, wherein the plurality of via holes are configured as an array along a lateral direction of a first surface of the dielectric layer, wherein each of the plurality of via holes extends through the dielectric layer and the substrate from the first surface of the dielectric layer to a second surface of the substrate in a vertical direction, and wherein the conductive layer is formed over at least one of the following: the first surface of the first dielectric layer and a portion of sidewalls of each of the plurality of via holes, and wherein the conductive layer is configured so as to allow the optical collimator to filter light in a range of wavelengths.

The invention is suitable for the technical field of semiconductor chip testing, and provides a CIS average frame obtaining method, device and processing equipment, and the method comprises the steps: receiving an average frame calculation parameter, responding to the average frame calculation parameter, sending a collection starting instruction, enabling a system to enter an image taking process, and keeping a collection state, continuous image frames are accumulated according to target virtual channels, so that average frame generation of each channel gets rid of a channel-by-channel serial process; when any target virtual channel accumulatively reaches the target frame number, average frame calculation of the channel is completed, the average frame is written into a result cache, and an average frame acquisition request is directly returned according to the channels without waiting for completion of all the channels; frame collection, accumulation and average calculation are overlapped in time, and control overhead caused by repeated starting and channel switching is reduced. Therefore, the average frame is generated earlier, the blocking time is shorter, the overall test beat is shortened, the time cost for obtaining the average frame can be substantially saved, and the CIS image test efficiency is further improved.

A rod lens array in which a plurality of gradient index rod lenses are arranged in a main scanning direction such that optical axes thereof are substantially parallel satisfies 0.01 [mm]≤ΔW≤0.1 [mm] when a substantially erect equal-magnification image of an object surface is formed on an image surface (Note that ΔW is an absolute value of a difference between a length Wob of the object in the main scanning direction and a length Wim of the image in the main scanning direction).

A light guide propagates, in a longitudinal direction, light incident on an end surface while reflecting the light on an inner surface and emits the light from a light emission surface. The light guide includes a light reflecting surface substantially facing the light emission surface, and multiple diffusion structures provided on the light reflecting surface to diffuse and reflect light. When the length of a diffusion structure in a direction perpendicular to a longitudinal direction is defined as Wr and the length of the light reflecting surface in a direction perpendicular to a longitudinal direction is defined as Wp, Wr<Wp holds.

The invention relates to a closed-loop control and diagnosis method and system for bill multispectral image acquisition. The method comprises the following steps: presetting calibration parameters matched with spectral characteristics of a contact image sensor; when the photoelectric sensor group detects that a bill is inserted, entering a scanning preparation state; the control mainboard generates a light source excitation sequence instruction according to a preset scanning mode; when the bill linearly passes through, synchronously acquiring to obtain a multispectral image sequence; the position and posture of the bill are monitored and corrected in real time, and correction data are obtained; original images in the multispectral image sequence are preprocessed according to the calibration parameters; and the control mainboard forms a structured multispectral image data packet according to the preprocessed image sequence, the deviation correction data and the sensor state data of the photoelectric sensor group. The imaging effect of the contact-type image sensor in the field of bill authentic identification is improved, and a high-quality, structured and pixel-level aligned multispectral image data packet is provided for an upper computer.

The invention discloses cleaning equipment, a control method and device, a program product, a medium and a cleaning system.The cleaning equipment comprises a contact type image sensor module, the contact type image sensor module is used for collecting a surface image of a to-be-cleaned surface, and the surface image is used for analyzing surface information of the to-be-cleaned surface. Through the technical scheme provided by the invention, the accuracy of identifying the surface information of the to-be-cleaned surface in the process of executing the cleaning task by the cleaning equipment can be improved.

The embodiment of the invention discloses a light-emitting module, a linear light source and a contact type image sensor. The light-emitting module comprises a circuit board, a plurality of groups of LED lamp beads and a control driving circuit. The circuit board comprises a main board surface and a side board surface connected to the main board surface; the LED lamp bead comprises an LED luminous body and a pin connected with the LED luminous body, the pin is connected to the main board face in the direction parallel to the main board face, and the normal of a light emitting path of the LED luminous body is perpendicular to the vertical face of the main board face. The control drive circuit is connected to the multiple sets of LED lamp beads and arranged on the main board face of the circuit board.

The invention discloses a low-cost contact-type image sensor and a detection method, which are used for banknote authentication and meet the resolution requirement of banknote authentication, infrared receiving diodes with the diameter of 2mm are used for replacing micro-sized lenses and complex photosensitive chips to receive images, the infrared receiving diodes are arranged in a staggered manner, and the infrared receiving diodes are arranged in a staggered manner. The arrangement distance between the adjacent infrared receiving diodes is 1.27 mm, the effective scanning length reaches 90 mm, the resolution reaches 20 DPI, and the requirements for image recognition and authentic identification of banknotes are met. The receiving lamp light guide holes which are arranged on the center line of the machine shell in a staggered mode are formed in a one-time injection molding mode, mold manufacturing is convenient, and the resolution ratio is improved. The plastic-packaged infrared receiving lamp tube is a mature product in the market, is low in price, is provided by more manufacturers, and is easy to purchase. The sensor can be consistent with a traditional CIS sensor in the aspect of meeting the counterfeit identification effect of banknotes, and the complexity of production and manufacturing and the material cost are greatly reduced on the whole.

The invention belongs to the field of image scanning, recognition, defect detection, authentic identification and the like, and discloses a multispectral image high-speed acquisition method, system and equipment for plane information detection, the acquisition system comprises an image acquisition board and a contact image sensor, and the acquisition system realizes command and data interaction with an upper computer through a communication interface. And the acquisition system is packaged under a customized closed metal shell to form acquisition equipment. The image acquisition board comprises an FPGA chip used for realizing system control and image preprocessing, a CIS sensor control module used for realizing anti-counterfeit label image data acquisition, a storage module used for realizing data caching, and a communication module used for realizing communication with an upper computer end. According to the invention, various spectrums and various resolution images are provided for plane information detection, real-time image processing can be carried out, the structure is simple, the use is convenient, and the universality is strong.

Device (101; 102) for the automatic optical inspection of a web-shaped or arc-shaped product (001; 002) having at least one coating and moving along a transport path, comprising at least one transport means (103) for transporting the product (001; 002), as well as a line scan camera (104), a first illumination device (106) and a second illumination device (107), wherein the transport path along which the product (001; 002) is moved crosses a detection area of ​​the line scan camera (104), wherein the line scan camera (104) is arranged in the transport direction (T) of the product (001; 002) between the first illumination device (106) and the second illumination device (107), wherein the detection area of ​​the line scan camera (104) is illuminated by both the first illumination device (106) and the second illumination device (107).wherein a central ray (Z106) of the radiation emitted by the first lighting device (106) and a central ray (Z107) of the radiation emitted by the second lighting device (107) have a common point of impact (AP) extending transversely to the transport direction (T) of the product (001; 002) on a surface of the respective coating of the product (001; 002), wherein the central ray (Z106) of the first lighting device (106) forms an angle (β) in the range between 10° and 30° with a normal (N) standing on the point of impact (AP), and the central ray (Z107) of the second lighting device (107) forms an angle (γ) in the range between 45° and 70° with the normal (N) standing on the point of impact (AP),wherein an angle (θ) is formed between a reflection beam (Z104) emanating from the point of impact (AP) and directed towards radiation-sensitive elements of the line camera (104) and the normal (N) located at the point of impact (AP), wherein this angle (θ) and the angle (β) formed between the central beam (Z106) of the first illumination device (106) and the normal (N) located at the point of impact (AP) are arranged symmetrically to the normal (N) located at the point of impact (AP), and wherein the line camera (104) is designed as a line camera (104) having contact image sensors.

The invention provides a portable printing and copying machine device with autonomous movement and multi-machine cooperation functions, which is characterized in that a, one or more printing nozzles are arranged to support printing images on the surface of a printing medium; the feature b is that one or more contact image sensors are arranged and are used for acquiring an image of the surface of a printing or scanning medium; c, a selectable motion tracking sensor is arranged and used for measuring local relative motion of the printing and copying machine in the printing or scanning process; d, an autonomous moving device with a three-degree-of-freedom motion capability in a plane is arranged, so that the printing and copying machine autonomously moves on the surface of the medium to complete printing or scanning operation; and e, a wireless communication module is arranged and is used for receiving a printing task or communicating with other portable printing and copying machines. According to the invention, the manual operation is reduced in the splicing type printing or scanning operation, and the working efficiency is high; the machine is compact and light in structure and flexible in use mode, and printing and scanning sizes are not limited.

The application provides an image sensing device, an image scanning device and a scanning method of the image scanning device. The image sensing device comprises an image sensing assembly for sterilizing and scanning a to-be-scanned object, and the image sensing assembly comprises a frame with a containing cavity and an opening communicating with the containing cavity; a contact image sensor for reading image information of the to-be-scanned object, the contact image sensor comprising a detection light source for emitting a detection light beam; and a sterilization module, the sterilization module and the contact image sensor being arranged in the containing cavity in sequence along a first direction, the sterilization module comprising an ultraviolet light source capable of emitting ultraviolet light to sterilize the to-be-scanned object. The technical scheme of the application solves the problem that the image sensing device in the prior art is difficult to fully sterilize the to-be-scanned object.