134results about How to "Achieve clear imaging" patented technology

The invention relates to a device and a method for acquiring product coded identifier information. The device comprises a data acquisition unit, a data identification unit and a control unit, wherein the data acquisition unit is positioned above a convey belt and comprises an image device, a lighting device and a position photoelectric switch; the image device is used for photographing product coded identifier to obtain image data; the lighting device is used for irradiating the product coded identifier; the position photoelectric switch is used for sensing the position of the product on the convey belt; the data identification unit is used for identifying and processing the image data acquired by the data acquisition unit to obtain the product coded identifier information and storing the information and is also connected with the image device and the control unit respectively through a data line; and the control unit is used for controlling the data acquisition unit, and connected with the data identification unit, the image device, the lighting device and the position photoelectric switch respectively through data lines. The invention also provides the method for acquiring the product coded identifier information.

The invention provides a wide-angle lens, which comprises, from an object side to an imaging plane in sequence, a meniscus-type first lens, which has negative focal power and the concave surface of which faces to the imaging plane; a second lens, which has negative focal power; a third lens has positive focal power; a fourth lens, which has positive focal power, and the double surfaces of which are convex surfaces respectively; a fifth lens, which has negative focal power and the double surfaces of which are concave surfaces respectively; a sixth lens, which has positive focal power and the double surfaces of which are convex surfaces respectively; a diaphragm, which is arranged between the third lens and the fourth lens; and an optical filter, which is arranged between the sixth lens and the imaging plane, wherein each lens is a plastic aspheric lens. Since each lens is the plastic aspheric lens, the wide-angle lens is allowed to have better optical performance; and meanwhile, structure composition between the lenses can help realize miniaturization of the wide-angle lens.

The invention relates to a minitype single-chip LCOS projection optical engine which is composed of a projection lens, a PBS beam splitter, a field lens and an LCOS chip which are sequentially arrayedalong a system imaging optical axis from a screen side to an image plane side, the PBS beam splitter and the imaging optical axis form a 45-degree angle, and an illuminating system of an optical engine is formed by an LED light source lens, a first condenser lens, a cylindrical lens and a second condenser lens which are sequentially arrayed along the optical axis of the illuminating system. The optical axis of the illuminating system and the optical axis of an imaging optical path from a 90-degree angle, and the PBS beam splitter, the field lens and the LCOS chip are commonly used by the imaging optical path and an illuminating optical path. An illuminating central beam is vertically radiated on the LCOS chip after being reflected by the PBS beam splitter, the system moves forward and backward to realize focusing along the imaging optical path by the projection lens, so as to ensure to realize to image clearly at different distances. The system has low cost and good process and is suitable for batch production.

The invention provides an underwater large-field-of-view continuous zooming optical system, thereby solving problems of small field of view angle, small zoom ratio, small system size, and complicatedsystem structure of the existing underwater continuous zooming optical systems. The provided underwater large-field-of-view continuous zooming optical system comprises a window, a front fixed mirror group, a zooming mirror group, a diaphragm, an intermediate fixed mirror group, a compensation mirror group, an aberration stabilizing mirror group, a rear fixed mirror group, and a filter that are arranged successively and coaxially in an optical axis direction. The front fixed mirror group includes a first glue mirror group having the positive focal power and a second positive lens. The zooming mirror group includes a second negative lens and a second glue lens group having the negative focal power. The intermediate fixed lens group includes a fourth positive lens group a third glue lens group having the positive focal power. The compensation mirror group includes a fifth negative lens and a sixth negative lens. The aberration stabilizing mirror group includes a sixth positive lens. And the rear fixed mirror group includes a seventh positive lens, a seventh negative lens, and an eighth positive lens. The zooming mirror group, the compensation mirror group, and the aberration stabilizing mirror group can move linearly back and forth in an optical axis direction.

The invention relates to a high dynamic range imaging module based on runner dynamic light splitting. Through the combination of a primary mirror, a plurality of adapters and a plurality of cameras, a dynamic adjusting technology of parameters such as light splitting ratio, light intensity transmittance, lens stop and camera exposure time and a multi-source image high dynamic synthesis technology are adopted, and clear imaging in a large dynamic range under scene light intensity extreme change conditions is realized, so that the problem of dynamic exposure adjustment required for high dynamic range imaging is solved, and the module is significant for realizing target high-quality imaging in light measurement.

The invention provides a camera lens used for a vehicle-mounted AR-ADAS, and belongs to the technical field of imaging of camera lenses. According to the camera lens, the technical problems that the existing camera lens of the vehicle-mounted AR-ADAS is not clear in imaging are solved. The camera lens used for the vehicle-mounted AR-ADAS comprises a first lens with negative power, a second lens with negative power, a third lens with positive power, a fourth lens with negative power, a fifth lens with positive power, a sixth lens with positive power and a seventh lens with positive power in sequence from an object surface to an image surface, wherein a diaphragm is arranged between the third lens and the fourth lens. The camera lens used for the vehicle-mounted AR-ADAS is characterized in that the fourth lens and the fifth lens are combined into a cemented lens; and a cemented surface of the cemented lens bends to an image space. The camera lens used for the vehicle-mounted AR-ADAS hasthe advantage that the imaging is clear.

The invention discloses an optical lens, a camera module, electronic equipment and an automobile. The optical lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens anda sixth lens which are sequentially arranged from an object side to an image side along an optical axis; the first lens has negative refractive power, the second lens has negative refractive power, and the third lens has positive refractive power. The fourth lens has positive refractive power, the fifth lens has negative refractive power, the sixth lens has positive refractive power, and the optical lens satisfies the following relation: 3.4 < (D34 + CT4)/(CT5 + D56) < 4. According to the optical lens, the camera shooting module, the electronic equipment and the automobile, due to the fact that the lens has the refraction power and the convex-concave design of the object side face and the image side face, when the relation that 3.4 < (D34 + CT4)/(CT5 + D56) < 4 is met, miniaturization design can be met, and meanwhile large-angle-range shooting and clear imaging can be achieved.

The invention belongs to the field of weak optical signal detection, and provides a solar blind ultraviolet imaging background light suppression optical system and method for detecting weak ultraviolet signals under the condition of strong sunlight, improving the detection reliability and the measurement sensitivity. The incident light is divided into two paths by using a total reflection total lens A, a visible light imaging light path is arranged on a transmission light path, and the visible light is imaged on a visible light CCD after passing through a visible light imaging objective lens;ultraviolet light is reflected, an ultraviolet light imaging light path is arranged on a reflection light path, the ultraviolet light is incident to a total reflection total lens B, residual visible light in an ultraviolet light path is transmitted out of the ultraviolet light imaging light path from the total reflection total lens B, the ultraviolet light reflected by the total reflection total lens B is imaged on an ultraviolet solar blind CCD after passing through an ultraviolet imaging object lens, and pixel level fusion is carried out on ultraviolet channel signals through an image fusionsystem; and under the condition of larger background light intensity, the detection sensitivity of the solar blind signal is improved.

The invention discloses a zoom optical system. The zoom optical system comprises a light sensing chip (30), wherein a first lens group (10) capable of moving relative to the light sensing chip is arranged on one side of the light sensing chip (30); a second lens group (20) capable of moving relative to the light sensing chip (30) is arranged between the first lens group (10) and the light sensing chip (30); a diaphragm (40) fixed relative to the position of the light sensing chip (30) is arranged between the second lens group (20) and the first lens group (10); in the changing process of the zoom optical system from a short focal distance to a long focal distance, the first lens group (10) and the second lens group (20) get close towards the diaphragm (40) gradually; and moreover, the integral focal distance of the first lens group (10) is negative, and the integral focal distance of the second lens group (20) is positive. The zoom optical system is small in size, large in image plane and high in resolution ratio.

The invention provides a focus-adjustable retina camera imaging system based on a liquid lens, which comprises an imaging system and an illuminating system, wherein the imaging system comprises an aperture diaphragm, an eye object lens, a spectroscope, an imaging object lens, the liquid lens and an image plane; the components are connected by the respective sequences that the eye object lens, the spectroscope, the imaging object lens and the liquid lens are in sequence disposed behind the aperture diaphragm, and the liquid lens is disposed between the imaging object lens and the image plane. The invention designs the imaging system based on a mechanical focus-adjusting manner, wherein the liquid variable-focus lens is introduced into the imaging system and surface curvature of the liquid lens can be changed continuously by adjusting voltage in order to realize clean human eye imaging with different visibilities. The focus-adjusting manner only needs to adopt a focus-fixed mechanical structure form, has a simple mechanical structure, reduces requirements for proficiency of an operator, and can realize more accurate adjustment by continuously changing the surface curvature of the lens.

A vehicle-mounted wide-angle lens comprises a first lens of a negative focal power, a second lens of a negative focal power, a third lens of a negative focal power, a fourth lens of a positive focal power, a fifth lens of a negative focal power, a sixth lens of a positive focal power and a seventh lens of a positive focal power successively from the object plane to the image plane; an aperture diaphragm is arranged between the fourth and the fifth lenses; protective glass and an optical filter are configured between the seventh lens and the image plane; the image plane is provided with light reception surfaces of solid shooting components as CCD and CMOS; the first, second and third lenses are falcate lenses which bend towards the image plane; the fifth and sixth lenses are combined into a glued lens, and a gluing side of the glued lens bends towards the image plane; the fourth and fifth lenses are glass lenses of high refractive indexes respectively; and the first, second, third, sixth and seventh lenses are glass lenses of low dispersion.

The invention relates to a pick-up lens for a high-resolution single group movement industry. A front group A with negative focal power, an iris diaphragm C and a rear group B with positive focal power are sequentially arranged in an optical system of the lens along the incident direction from left to right of light, wherein the front group A is sequentially provided with a positive meniscus lens A-1, a positive meniscus lens A-2 and a negative meniscus lens A-3, and the rear group B is sequentially provided with a glued group with tight joint of a biconcave lens B-1 and a biconvex lens B-2, a biconvex lens B-3 and a positive meniscus lens B-4. The pick-up lens disclosed by the invention has the characteristics of high resolution, large target surface, low distortion, small minimum photographic distance and the like, and can be in adaptation with a high-resolution CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor) video camera, realize high-resolution videography, simultaneously realize clear imaging with minimum photographic distance of 0.3m and enable the distortion to be lower than 1%.

The invention relates to a high-resolution whole-set mobile industrial photographing camera lens. The high-resolution whole-set mobile industrial photographing camera lens comprises a front set A with negative focal power, a variable light diaphragm C and a rear set B with positive focal power, which are arranged in sequence along light from a left incident direction to a right incident direction, wherein the front set A is composed of a positive crescent-shaped lens A-1, a double-convex lens A-2 and a double-concave lens A-3; the double-convex lens A-2 and the double-concave lens A-3 are tightly connected to form a first gluing set; the rear set B is composed of a double-concave lens B-1, a double-convex lens B-2, a double-convex lens B-3 and a negative crescent-shaped lens B-4; the double-concave lens B-1 and the double-convex lens B-2 are tightly connected to form a second gluing set; the double-convex lens B-3 and the negative crescent-shaped lens B-4 are tightly connected to form a third gluing set. The high-resolution whole-set mobile industrial photographing camera lens provided by the invention is reasonable in optical structure design, and has high resolution, accurate and stable actions including focusing and the like and has a good hand feeling.

The invention provides a focusing device and method for a satellite remote sensing camera. The focusing device comprises a focusing ring assembly and a motion transmission assembly, wherein the focusing ring assembly and the motion transmission assembly are used for enabling a camera lens focusing ring to conduct small-step-length planar motion. As the focusing ring assembly and the motion transmission assembly which can achieve small-step-length planar motion in orbit are adopted in cooperation with each other, accurate small-range focusing of the camera lens focusing ring is achieved; when the focal plane is out of focus because a satellite is influenced by temperature variation of a space environment, the focal distance of the remote sensing camera can be accurately adjusted through the focusing device, and then clear imaging of the satellite remote sensing camera is achieved. The focusing device has the advantages of being simple in structure, convenient to operate, high in focusing precision and the like, and the excessive focusing problem is avoided.

The invention discloses a Cu2-xS self-doped semiconductor optothermal material and application thereof to invisible fingerprint imaging. As polymerization of allyl thiol is used for modifying the surface of the Cu2-xS self-doped semiconductor material with high photothermal conversion efficiency, the Cu2-xS self-doped semiconductor material has amphipathy and can be selectively adsorbed to an invisible fingerprint, and the invisible fingerprint can be imaged clearly under the complicated background by means of near-infrared light radiation and near-infrared imager. In addition, a fluorescence-optothermal bimodal imaging method realized by the Cu2-xS-CdS3@ZnS nanocomposite material is used, residues of 2,4,6-trinitrotoluene and other powerful explosive materials contained in the invisible fingerprint are detected successfully on the condition that fingerprint morphology imaging is complete, a powerful means is provided for scouting crime evidence of criminal offenders, and the Cu2-xS self-doped semiconductor optothermal material can play an important role in judicial expertise and anti-terrorist application.

The invention relates to a large-aperture large-target-surface low-light imaging lens. In an optical system of the lens, a front lens group A, a variable diaphragm B and a rear lens group C are arranged successively from left to right along the light incident direction; the front lens group A comprises a negative crescent-shaped lens A1, a positive crescent-shaped lens A2, a first gluing group formed by closely connecting a plano-convex lens A3 with a double-concave lens A4, and a double-convex lens A5 arranged successively from left to right; and the rear lens group C comprises a negative crescent-shaped lens C1, a second gluing group formed by closely connecting a double-convex lens C2 with a double-concave lens C3, a double-convex lens C4 and a plano-convex lens C5 arranged successivelyfrom left to right. The lens uses 10 spherical lenses, F1.0 large-aperture large-target-surface clear imaging is realized, and the detection capability of the lens under a weak illumination conditionis improved effectively; and at the same time, the lens is compact in structure, small in size and low in weight.

The embodiment of the invention discloses a zoom lens. The zoom lens comprises a focusing group, a fixed group and a zoom group which are sequentially arranged from an object space to an image space;in the zooming process, the position of the fixed group is fixed, and the zooming group and the focusing group move along an optical axis; wherein the focal power of each group at the wide-angle end relative to the zoom lens satisfies a certain relational expression; the focusing group comprises a first lens, a second lens and a third lens, the fixed group comprises a fourth lens, and the zoom group comprises a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens; the sixth lens and the seventh lens form a cemented lens group, and the focal power of each lensrelative to the corresponding group is set to satisfy a certain relational expression. According to the embodiment of the invention, the zoom lens can be formed by mixing four glass lenses and six plastic lenses, the manufacturing cost of the zoom lens can be properly reduced, light weight is realized, meanwhile, the visible light aberration is well corrected, and a confocal effect of visible light and infrared light is ensured.

The invention discloses a single-pixel imaging method based on atmospheric scattering medium modulation, and the method comprises the steps: enabling a laser beam to enter an atmospheric scattering medium, taking the atmospheric scattering medium as a spatial modulator, and calculating a single modulation pattern of the atmospheric scattering medium under a current condition; in the modulation mode, enabling light in the atmospheric reflection direction to reach a target through the lens, and enabling the barrel detector to collect all light signals from the target to obtain a detection value;randomly changing the transmission direction of the laser beam entering the atmosphere to obtain a series of different modulation patterns of the atmosphere for light field modulation; taking the single modulation pattern as a row vector, and forming an atmospheric scattering medium measurement matrix by row vectors corresponding to a series of different modulation patterns; obtaining a measurement vector composed of a series of detection values corresponding to a series of different modulation patterns; and recovering the target signal by using an image reconstruction algorithm. According tothe method, an atmospheric scattering medium is used as a spatial modulator for single-pixel imaging, and clear imaging of a target surrounded by the scattering medium is realized.