60results about How to "Meeting Imaging Needs" patented technology

The invention provides a target simulating system of a dynamic selenographic imaging sensor. The target simulating system comprises a target image generating unit, an image outputting unit and an optical transmission unit; the target image generating unit is used for generating a three-dimensional selenographic feature according to DEM (Dynamic Effect Model) data and remote sensing image data, and dynamically generating grayscale image data meeting the imaging requirement of the selenographic imaging sensor according to a selenographic illumination condition of the selenographic imaging sensor at imaging time and a position posture parameter of the selenographic imaging sensor at the time; the image outputting unit is used for displaying the grayscale image data generated by the target image generating unit on an LCD (Liquid Crystal Display) device; and the optical transmission unit is used for optically converting an image displayed on the LCD device, so that the image is rightly imaged on an imaging device of the selenographic imaging sensor.

The invention discloses a single cigarette empty head detection method based on machine vision. The method comprises the following steps: (1) acquiring and processing a cigarette image by an endoscope, thus acquiring a preprocessed image P1; (2) extracting and processing a blue channel image P4 of the image P1; (3) preliminarily determining the position of the center of a circle of a cigarette in the image; (4) preliminarily determining the position of the cigarette to be detected in the image, and fitting the circle center coordinates and the radius in an area in which the cigarette is positioned; (5) judging the cigarette area is a filter tip or a cigarette head; (6) determining a boundary point between cut tobacco and cigarette paper of the cigarette; and (7) calculating the distance between the inner and outer boundary points, wherein if the distance is less than a certain threshold value, the cigarette is considered to be qualified, otherwise, the cigarette is an empty head cigarette and is removed. The invention also discloses special equipment for the detection method. According to the method, the cigarette image is acquired by the endoscope, and due to accurate computer processing, the single cigarette empty head can be accurately and rapidly detected.

The invention discloses a camera module and electronic equipment. The camera module comprises: at least one lens; a light sensing assembly used for sensing light passing through the lens; and a driving device which can drive the light sensing assembly to move in the direction close to or away from the lens so as to adjust the focal length of the camera module. The driving device capable of drivingthe light sensing assembly to move is arranged in the camera module, the distance between the light sensing assembly and the lens is changed through movement of the light sensing assembly, and the zooming function of the camera module can be achieved. Since the weight of the light sensing assembly is far less than that of the lens, the requirement on the driving force of the driving device is low. Under the same condition, the moving efficiency of the light sensing assembly is high, and rapid zooming is convenient to achieve. Furthermore, as the lens is immobile, the view field opening of thecamera module can be kept in a small size, the normal imaging requirement can be met, the occupied space in the electronic equipment is small, and the arrangement, design and installation cost of other parts or assemblies is low.

The invention discloses a field-of-view beam splitter of a wide-width imaging spectrograph, belonging to the field of onboard and spaceborne optical remote sensing, the field-of-view beam splitter of the wide-width imaging spectrograph comprises a spectroscope lock block, spectroscope lock block fixing screw, a base, a spectroscope, a base aperture, a slit plate and a base fixing screw, wherein the slit plate is provided with a first slit, a second slit and a third slit, and the amount of the slits on the slit plate is set as required; the spectroscope is stuck and installed in the cavity of the base in an unstressed mode; the spectroscope lock block presses a reflector on the tail end of the base; the spectroscope lock block is fixedly connected with the base by the pectroscope lock block fixing screw; and the slit plate is stuck on the front end with the base aperture of the base in an unstressed mode. Under the condition that a large-size two-dimensional matrix array detector is hard to obtain, high-resolution and wide-width spectrum imaging remote sensing of the imaging spectrograph can be realized through field-of-view separation and splicing.

The invention discloses an optical lens and an imaging device. The optical lens sequentially comprises a diaphragm, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lensand a seventh lens from an object side to an imaging surface along an optical axis, wherein the first lens has positive refractive power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens has negative refractive power, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has positive refractive power, and the object side surface of the third lens is a convex surface near the optical axis, and the image side surface of the third lens is a concave surface near the optical axis; the fourth lens has negative refractive power, and the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has positive refractive power, and the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a convex surface; the sixth lens has positive refractive power, and the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a convex surface; and the seventh lens has negative refractive power, and the object side surface of the seventh lens is a concave surface near the optical axis, and the image side surface of the seventhlens is a concave surface near the optical axis. According to the optical lens provided by the invention, by reasonably matching the surface type and refractive power of each lens, the balance of miniaturization and high pixel of the lens can be better realized.

The invention discloses an optical lens and an imaging device. The optical lens sequentially comprises a first lens, a diaphragm, a second lens, a third lens and an optical filter from an object sideto an imaging surface along an optical axis, the first lens has positive focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface or a convex surface; the second lens has positive focal power, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convexsurface; the third lens has negative focal power, the object side surface of the third lens is a convex surface, the image side surface of the third lens is a concave surface near the optical axis, and the image side surface of the third lens has at least one inflection point; wherein the first lens, the second lens and the third lens are all plastic aspheric lenses. The optical lens provided bythe invention has the characteristics of wide viewing angle, large aperture, small distortion and high imaging quality, and is more suitable for the design requirements of the DToF technology.

The invention relates to a self-adaptive multimode X-ray CT imaging scientific research experimental platform. The CT platform is characterized by comprising a bearing table, a center carrying rotary table assembly, an X-ray generator and location moving assembly, an X-ray detector and location moving assembly and a distance measuring assembly; the bearing table supports all other assemblies and an imaging object; the center carrying rotary table assembly is located at the center of the bearing table; the X-ray generator and location moving assembly is located on the right side of the center carrying rotary table assembly; the X-ray detector and location moving assembly is located on the left side of the center carrying rotary table assembly; the distance measuring assembly is located on the rear side of the center carrying rotary table assembly; the center carrying rotary table assembly comprises a carrying table, a connecting shaft, a coupler, a rotary table driving motor and a location switch; the carrying table is in a disc shape and is located on the surface of the bearing table; the connecting shaft penetrates through the surface of the bearing table, the upper portion of the connecting shaft is connected with the center point of the carrying table, and the lower portion of the connecting shaft is connected with the rotary table driving motor through the coupler.

The invention discloses a special multichannel radio frequency echo signal down converter for an MR-EPT spectrometer, and belongs to the field of MR-EPT imaging. The down converter comprises a local oscillator signal generation module, a power division module and a frequency-mixing amplitude-modulation phase-modulation unit which are connected in sequence, and a control module for controlling thefrequency of a local oscillator signal output by the local oscillator signal generation module and controlling the frequency-mixing amplitude-modulation phase-modulation unit to adjust the amplitude and phase of an output signal. The frequency mixing amplitude modulation and phase modulation unit comprises a plurality of radio frequency amplitude modulation and phase modulation modules. The radiofrequency amplitude modulation and phase modulation module comprises a radio frequency signal processing module for performing sideband suppression and impedance matching on a radio frequency echo signal, which are connected in sequence; a frequency mixing module used for carrying out frequency mixing on multi-channel local oscillation signals output by the power dividing module and radio frequency signals output by the radio frequency signal processing module, a filtering module, an amplifying module, a phase modulation module controlled by the control module to carry out phase shift, and anamplitude modulation module controlled by the control module to carry out amplitude modulation. The problem that an existing magnetic resonance spectrometer cannot be used for MR-EPT imaging in a 9.4T ultrahigh magnetic field environment is solved.

The invention discloses an optical imaging lens and imaging equipment. The optical imaging lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens from an object side to an imaging surface along an optical axis. The first lens has positive focal power, the object side surface is a convex surface, and the image side surface is a concave surface or a plane; the second lens has negative focal power, and the image side surface of the second lens is a concave surface; the third lens and the fourth lens form an achromatic balsaming lens group, one lens is a positive focal power lens, and the other lens is a negative focal power lens; the fifth lens has positive focal power, and the object side surface and the image side surface of the fifth lens are convex surfaces; the sixth lens has negative focal power; the seventh lens has positive focal power, and the object side surface of the seventh lens is a convex surface; the seven lenses are all glass lenses, and the optical imaging lens at least comprises an aspheric lens. The optical imaging lens at least has the characteristics of large aperture, high resolution and high imaging quality.

The invention discloses a prime lens and imaging equipment, and the prime lens sequentially comprises, from an object side to an imaging surface along an optical axis, a first lens with negative focal power, whereinthe object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens having negative focal power, wherein the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; a third lens having positive focal power, wherein the object side surface of the third lens is a convex surface, and the object side surface and the image side surface of the third lens are respectively provided with an inflection point; a diaphragm; a fourth lens having positive focal power, wherein the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; a fifth lens having positive focal power, wherein the object side surface and the image side surface of the fifth lens are convex surfaces; a sixth lens having negative focal power, wherein the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a convex surface; and a seventh lens having positive focal power, wherein the object side surface of the seventh lens near the optical axis is a convex surface, the image side surface of the seventh lens near the optical axis is a concave surface, and the object side surface and the image side surface of the seventh lens have inflection points. The prime lens has the advantages of large aperture, miniaturization, light weight, ultra-large wide angle and the like.

The invention discloses an optical imaging lens and an imaging device. The optical imaging lens sequentially comprises from an object side to an imaging surface along an optical axis: a diaphragm; a first lens with negative power, wherein the object side surface of the first lens is a concave surface, and the image side surface of the first lens is a convex surface; a second lens with positive focal power, wherein the image side surface of the second lens is a convex surface; a third lens with positive focal power, wherein the object side surface and the image side surface of the third lens are convex surfaces; a fourth lens with positive focal power, wherein the object side surface and the image side surface of the fourth lens are convex surfaces; a fifth lens with negative focal power, wherein the object side surface and the image side surface of the fifth lens are concave surfaces, and the fourth lens and the fifth lens are glued into a bonded body; a sixth lens with positive focal power; and a seventh lens with negative focal power, wherein the object side surface of the seventh lens is a convex surface near the optical axis, and the image side surface of the seventh lens is a concave surface near the optical axis. The optical imaging lens has the advantages of large aperture, high relative illumination, high resolution and high imaging quality.

The invention discloses a wide-angle lens and imaging equipment, and the wide-angle lens sequentially comprises a first lens with negative focal power from an object side to an imaging surface along an optical axis, wherein the object side surface is a convex surface, and the image side surface is a concave surface; a second lens having focal power, wherein the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convex surface; a third lens having positive focal power, wherein the image side surface of the third lens is a convex surface; a diaphragm; a fourth lens having positive focal power, whereinthe object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; a fifth lens having positive focal power, whereinthe object side surface of the fifth lens is a convex surface or a plane, and the image side surface of the fifth lens is a convex surface; a sixth lens having negative focal power, wherein the object side surface of the sixth lens is a concave surface; and a seventh lens having positive focal power, whereinthe object side surface of the seventh lens is a convex surface, and the image side surface of the seventh lens is a concave surface, wherein the fifth lens and the sixth lens form a bonding body. The wide-angle lens at least comprises an aspheric lens. The wide-angle lens has the advantages of large aperture, high pixel and good thermal stability.

The invention discloses a fisheye lens which comprises seven lenses in total, and the fisheye lens sequentially comprises first to third lenses, a diaphragm and fourth to seventh lens from an object side to an imaging surface along the optical axis; the first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a convex surface; the second lens has negative focal power, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the third lens has positive focal power, the object side surface of the third lens near the optical axis is a convex surface, and the image side surface of the third lens is a convex surface ; the object side surface and the image side surface of the fourth lens with positive focal power are convex surfaces; the fifth lens has positive focal power, and the object side surface and the image side surface of the fifth lens are convex surfaces; the sixth lens has negative focal power, and the object side surface and the image side surface of the sixth lens are concave surfaces; and the object side surface and the image side surface of the seventh lens with positive focal power are convex surfaces. The fisheye lens at least comprises a lens made of a glass material and a lens made of a plastic material. The fisheye lens has the advantages of high thermal stability, miniaturization, light weight, large aperture, ultra-large wide angle and the like.

The invention provides a vehicle-mounted night vision auxiliary driving imaging optical system. The internal structure of a shell comprises a night imager assembly, a thermal imager assembly and a color camera assembly. a controller comprises a touch screen and operation keys, and the operation keys are used for achieving rotation operation of the shell structure by controlling the motor; a computer is coupled with the controller and is used for controlling an imaging mode and parameters of the video screen display equipment through the touch screen; a multispectral optical filter is arranged between the optical lens and the image sensor, and the multispectral optical filter comprises a first optical filtering part, a second optical filtering part and a hollow part; a processor is electrically connected with the image sensor of the night imager assembly and the image sensor of the thermal imager assembly, and is used for carrying out cross correlation fusion processing on images formed by the two image sensors.

The invention discloses a preparation method of a dual-emission quantum dot and an application of the dual-emission quantum dot in biological imaging, wherein the dual-emission quantum dot is prepared by taking zinc acetate (Zn(Ac)2), silver nitrate (Ag(NO)3), indium acetate (In(Ac)3) and selenium powder (Se) as main raw materials as a core of the quantum dot, taking zinc acetate (Zn(Ac)2) and sulfur powder as a precursor solution as a shell layer of the quantum dot, and preparing the reaction product at a certain temperature under the protection of nitrogen. The prepared dual-emission quantum dot is high in quantum yield and good in stability, has two emission peaks of visible light region emission and near-infrared region emission, and can be used for in-vivo and in-vitro biological imaging.

An embodiment of the invention provides a light detector in medical equipment, a detection method and device of the light detector and a computer readable storage medium, and relates to the technicalfield of medical treatment. Whether a light detection chip is damaged or not can be determined according to the attenuation effect of the light detection chip, and the damaged light detection chip canbe correspondingly processed, so that the imaging quality of the medical equipment is improved. The light detector comprises at least one light detection module, and each light detection module comprises at least one light detection chip. The specific detection method of the light detector includes the steps: acquiring light sensing response data of all the light detection chips within specifiedtime before and after stop of light source irradiation; judging whether attenuation index parameters of the light detection chips meet preset requirements or not according to the light sensing response data; determining that the light detection chip is damaged when judging that the attenuation index parameters of one optional light detection chip do not meet the preset requirements. The detectionmethod is applicable to the detection process of the medical equipment based on light detector imaging.

The invention discloses a broadband antenna for through-wall radar imaging. The broadband antenna comprises a dielectric substrate and a metal reflection board, wherein the dielectric substrate is fixedly arranged above the metal reflection board through a fixed support assembly; a metal patch and a micro-strip feeder line connected with the metal patch are printed on the front of the dielectric substrate; and a metal grounding plate with a slit is printed on the back of the dielectric substrate. The broadband antenna has the advantages of being simple and compact in structure, low in cost, small in size and high in gain.

The invention provides a camera lens. The pick-up lens sequentially comprises a first lens with negative focal power from an object side to an image side along an optical axis, a second lens with negative focal power, a third lens and a fourth lens from the object side to the image side, the second lens has positive focal power; the object side surface of the third lens is a convex surface; the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has negative focal power; wherein the effective focal length f of the pick-up lens and the entrance pupil diameter EPD of the pick-up lens satisfy f / EPDlt; 1.9); the effective focal length f of the pick-up lens and the maximum field angle FOV of the pick-up lens satisfy 3.5 mmlt; f * tan (FOV / 2) lt; 6 mm. According to the invention, the problem that the large aperture, the ultra-wide angle and the high pixel of the camera lens in the prior art are difficult to realize at the same time is solved.

The prime lens comprises a first lens 1, a second lens 2, a third lens 3, a diaphragm S, a fourth lens 4, a fifth lens 5, a sixth lens 6, a seventh lens 7, an eighth lens 8 and a ninth lens 9 which are sequentially arranged from an object side to an image side along an optical axis, wherein the first lens 1 is a negative-focal-power lens, the second lens 2 is a positive-focal-power lens, the third lens 3 is a negative-focal-power lens, the fourth lens 4 is a positive-focal-power lens, the fifth lens 5 is a negative-focal-power lens, the sixth lens 6 is a positive-focal-power lens, the seventh lens 7 is a positive-focal-power lens, and the eighth lens 8 is a negative-focal-power lens. The ninth lens 9 is a positive focal power lens, and the fifth lens 5 and the sixth lens 6 are glued to form a glued lens. The prime lens provided by the invention has the characteristics of large aperture and large field of view, can realize no virtual focus in a temperature range of-40 DEG C to 85 DEG C, is more miniaturized, adopts the plastic aspherical lens, and reduces the production cost.

The invention discloses a wide-angle lens and an imaging device, and the wide-angle lens sequentially comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object side to an imaging surface along an optical axis. The first lens has negative focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens has negative focal power, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convex surface; the third lens has positive focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the wide-angle lens further comprises the diaphragm; the fourth lens has positive focal power, the object side surface of the fourth lens is a concave surface, and the image side surface of the fourth lens is a convex surface; the fifth lens has positive focal power, and the object side surface and the image side surface of the fifth lens are convex surfaces; the sixth lens has negative focal power, the object side surface of the sixth lens is a concave surface, and the image side surface of the sixth lens is a convex surface; and the seventh lens has positive focal power, the object side surface of the seventh lens near the optical axis is a convex surface, the image side surface of the seventh lens near the optical axis is a concave surface, and the object side surface and the image side surface of the seventh lens have inflection points. The wide-angle lens has the advantages of large wide angle and large image plane.

The invention discloses an optical imaging lens and imaging equipment, and the optical imaging lens sequentially comprises a first lens with negative focal power, wherein the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens having negative focal power, whereinthe object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convex surface; a diaphragm; a third lens having positive focal power, wherein the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; a fourth lens having positive focal power, wherein the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a convex surface; a fifth lens having negative focal power,wherein the object side surface of the fifth lens is a concave surface, and the image side surface of the fifth lens is a concave surface; a sixth lens having positive focal power, wherein the object side surface of the sixth lens is a convex surface, and the image side surface of the sixth lens is a convex surface; and a seventh lens having negative focal power, wherein the object side surface of the seventh lens is a convex surface at a paraxial region and has an inflection point, and the image side surface of the seventh lens is a concave surface at a paraxial region and has an inflection point. The optical imaging lens has the advantages of ultra-large aperture, long focus and telephoto, high pixel, miniaturization, good thermal stability and the like.

The invention relates to a forming method of a PVB film for a HUD. The forming method comprises the following steps that a, PVB raw materials are clamped between two protection films and placed into apreheated die; or one protection film is placed into the preheated die at first, the PVB raw materials are placed on the first protection film, and finally the second protection film is placed on thePVB raw material; b, die assembly is carried out; c, the die is pressed and heated till reaching the needed temperature; d, the formed PVB film and the two protection film are taken out; e, the formed PVB film is cooled; and f, the two protection films are taken down, and the PVB film for the HUD is obtained. The invention further relates to the PVB film formed through the method.

The invention relates to a high-field whole-body magnetic resonance imaging active shielding superconducting magnet and a design method. The magnet comprises a main coil, an adjusting coil and a shielding coil, the main coil is a long solenoid coil, and the coil structure is preset, that is, the number of turns of a wire, the specification of the wire, the size of the coil and the position of the coil are known; and corresponding wire turns, wire specifications, coil sizes, coil positions and whole magnet operation current of the adjusting coil and the shielding coil are information to be solved, magnetic fields of the main coil, the adjusting coil and the shielding coil are superposed, the uniformity of the magnetic field generated in the center area of the magnet reaches a specified constraint condition, and meanwhile, the 5 Gaussian line range does not exceed the specified constraint range. The inner diameter of a magnet coil is not less than 800mm, the magnetic field intensity of a central area of the magnet is not less than 14T, the magnetic field uniformity peak-to-peak value in a spherical area with the diameter of 400mm does not exceed 10ppm, and the axial direction of a 5-gauss line range does not exceed + / -10m and the radial direction does not exceed + / -8m.

The invention discloses a fixed-focus lens and imaging equipment. The fixed-focus lens sequentially comprises: a first lens with negative refractive power along the optical axis from the object side to the imaging surface, the object side is convex, and the image side is concave; The second lens with negative refractive power has a convex surface on the object side and the concave surface on the image side; the third lens with positive refractive power has a convex surface on the object side and has inflection points on both the object side and the image side; the diaphragm The fourth lens with positive refractive power, its object side is concave, and the image side is convex; the fifth lens with positive refractive power, its object side and image side are convex; the sixth lens with negative refractive power, The object side is concave and the image side is convex; the seventh lens with positive refractive power has a convex object side at the near optical axis and a concave image side at the near optical axis, and the object side and image of the seventh lens are Both sides have inflection points. The fixed-focus lens has the advantages of large aperture, miniaturization, light weight, super wide angle and the like.

The invention discloses an endoscope image collecting device, which comprises an endoscope main hose pipe, a coupling device and an industrial camera. The endoscope image collecting device is characterized in that the endoscope main hose pipe consists of a plurality of groups of optical fiber hose pipes, one end of each optical fiber hose pipe is used for fixing a cigarette head part just facing a lower cigarette bin through a bracket, the other end of each optical fiber hose pipe is gathered to form an image beam, the image at the end surface of the image beam is sent to the imaging end of the industrial camera for imaging through the coupling device, the coupling device comprises a lens group [A] and a lens group [B], the lens groups are used for forming a parallel light path when the image at the end surface of the image beam is sent, and a diaphragm and a low-pass filter are arranged between the two lens groups. The endoscope image collecting device has the advantages that by modifying the endoscope main hose pipe, the optical fiber imaging technology is adopted, and the requirements of slit spaces of packaging platforms are met.