10results about How to "Extended imaging range" patented technology

The invention provides an imaging lens group, which sequentially comprises a first lens element with negative refractive power, a second lens element with negative refractive power and a third lens element from an object side to an image side, a second lens element with negative refractive power; a third lens element with positive refractive power; a fourth lens element with positive refractive power; a fifth lens element with negative refractive power; a sixth lens element with positive refractive power; and a seventh lens element with negative refractive power, wherein the angle of the maximum angle of view principal ray incident imaging surface of the imaging lens group is CRA, the maximum effective radius of the object side surface of the first lens is CA1, the maximum effective radius of the image side surface of the seventh lens is CA14, and the following condition is satisfied: CRA * CA14 / CA1 is more than 14.42 degrees and less than 23.66 degrees.

This invention belongs to the field of motor technology and discloses a high-linearity finite-angle torque motor, comprising a cylindrical rotor and a cylindrical stator, with the rotor housed within the stator. The stator includes N coils and N constant magnetic circuit channels, where N is an even number of at least 2. The rotor's magnet portion has N polarities. The N coils of the stator are evenly arranged circumferentially on the inner side of the stator, with adjacent coils separated by constant magnetic circuit channels. The ends of all coil frames and the ends of the constant magnetic circuit channels together form the rotor's rotational track. Adjacent stator coils have opposite polarities after being energized, and adjacent rotor magnets also have opposite polarities. This invention employs a special stator lamination structure, theoretically eliminating stator cogging torque within the motor's operating angle range, thus improving the linearity of the motor's output torque. Compared to traditional slotted finite-angle torque motors, the output torque fluctuation is reduced by more than 70%.

The invention discloses an endoscope imaging system and endoscope equipment. The endoscope imaging system sequentially comprises first window glass, a diaphragm, a lens subsystem, second window glass and a detection imaging element from an object side to an image side along an optical axis, the first window glass and the second window glass are used for protecting lenses in the lens subsystem; the detection imaging element is used for displaying an image formed by the lens subsystem; the lens subsystem sequentially comprises a first lens group and a second lens group from the object side to the image side along the optical axis; the second lens group is fixedly arranged in the inner lens cone, the inner lens cone can move back and forth in the fixed lens cone, and the first lens group is fixedly arranged in the fixed lens cone and located on the object side of the inner lens cone; the first lens group sequentially comprises a first lens with positive focal power, a first sub-lens group with negative focal power, a second sub-lens group with positive focal power and a third sub-lens group with negative focal power from the object side to the image side along the optical axis; the second lens group is a lens group with positive focal power.

The invention relates to the field of large-view scenes, and provides a nonlinear optical large-view imaging system which comprises a light source system, a laser scanning system and a laser detection system. The light source system is used for emitting laser; the laser scanning system comprises a focusing lens and a galvanometer, the galvanometer is located between the focusing lens and the tested sample, the focusing lens is used for focusing laser to the tested sample, and the galvanometer vibrates according to a preset scanning angle to achieve scanning of a laser focus on the tested sample; the laser detection system comprises a compound eye type collection structure and a detector, the compound eye type collection structure comprises a plurality of closely arranged single lenses, and an optical signal generated by a detected sample enters the compound eye type collection structure; the detector is used for detecting the light signals collected by the compound eye type collection structure. The laser scanning imaging range can be expanded, it is guaranteed that laser beams are always spread along the optical axis of the focusing lens, signals excited by the whole scanning view field can be comprehensively collected, and the large-view-field imaging efficiency and the signal intensity are improved.

The present invention relates to a control device and method for an eye-hand robot, the device comprising a robot, a host computer, a target, a measuring component and a calibration plate, the target being fixedly mounted in front of a camera, and the crosshairs of the target completely coincide with the central line of the image in the camera; the measuring component comprising a prism component and a camera, which are arranged around the robot, the prism component being arranged between the target and the camera, and the visual axis of the camera and the optical axis of the prism component being kept coaxial; the calibration plate being arranged at the end of the robot's mechanical arm and being located within the camera's field of view; the host computer being connected to the robot, the camera and the prism component, respectively. Compared with the prior art, the present invention controls the rotation of the prism component through the host computer when the camera is fixed, thereby driving the adjustment of the camera's field of view position, effectively expanding the working range of a single camera and the robot, and realizing the real-time dynamic measurement of the end of the robot's mechanical arm by the measuring component.

The invention relates to a short-wave system with an ultra-large target surface. The short-wave system comprises a negative meniscus lens A, a positive meniscus lens B, a biconcave negative lens C, a positive meniscus lens D, a negative meniscus lens E, a positive meniscus lens F, a reflector 1, a reflector 2, a positive meniscus lens G, a negative meniscus lens H and a positive meniscus lens I which are sequentially arranged in the direction of an optical path. The matched detector J is a refrigeration type short wave infrared detector, and the size of an imaging target surface of the detector is not less than phi 60mm. The cold diaphragm is located at the tail end of the system, and the efficiency of the cold diaphragm is 100% during design, so that stray light entering is reduced, and the detection sensitivity of the system is improved. According to the system, a secondary imaging Z-shaped turning structure form is adopted, an aspheric surface is combined, materials are reasonably selected, and focal power of each lens is distributed, so that the large target surface design is realized, and meanwhile, the system aperture is compressed, the system length is shortened, and the system volume is reduced.

The utility model discloses an infrared optical system and an infrared optical lens. The infrared optical system sequentially comprises a first aspheric lens with negative focal power, a second aspheric lens with positive focal power, a super lens with positive focal power and a third aspheric lens with positive focal power from an object side to an image side. The surfaces, close to the object side and away from the object side, of the first aspheric lens protrude towards the object side. The surface, close to the object side, of the second aspheric lens protrudes towards the object side, and the surface, away from the object side, of the second aspheric lens protrudes towards the object side or the image side. The surfaces, close to the object side and away from the object side, of the third aspheric lens protrude towards the image side. The infrared optical system provided by the utility model has relatively high resolution and can be matched with an imaging detector with relatively high resolution for use. The infrared optical system has a large imaging range, can obtain more imaging information, and can distinguish more imaging details at the same time. Meanwhile, the infrared optical system also has the advantage of relatively low cost.

The application provides a light control device and a passive light emitting image source, wherein the light control device comprises a diffusion element and a direction control element; the direction control element is used for converging light emitted by light sources at different positions; the diffusion element is arranged on the side of the direction control element away from the light sources, and is used for diffusing the light emitted by the direction control element and forming a light spot. The light control device and the passive light emitting image source provided by the embodiment of the application can improve the utilization rate of light, and high-brightness light can be emitted by using a low-power light source, thereby forming a high-brightness image.

The invention discloses a wave field imaging method and device, electronic equipment and a readable storage medium, and belongs to the technical field of geological exploration. The method comprises the following steps: acquiring ground seismic data and vertical seismic profile data; correcting the reference surface parameter of the ground seismic data and the reference surface parameter of the vertical seismic section data to obtain a target reference surface parameter; acquiring first coordinate data of a plurality of target detection points and second coordinate data of a plurality of target seismic sources based on the target reference plane parameters; and determining target wave field imaging of the geological section according to the multiple pieces of first coordinate data, the multiple pieces of second coordinate data, the ground seismic data and the vertical seismic section data. The target wave field imaging has the characteristics of uniform imaging, large imaging range and high resolution, so that the target wave field imaging quality is relatively high.

The invention relates to an elastomer visual detection device based on weighing sensor production and processing, and belongs to the technical field of visual detection. Comprising a rack, a connecting frame, a main light source and a mounting plate are sequentially and fixedly connected to the inner wall of the rear side of the rack from top to bottom, a conveying mechanism is mounted on the front side of the rack in a penetrating mode from left to right, a screw is rotationally connected to the connecting frame through a motor, a sliding table is in threaded connection with the outer side of the screw, and an industrial camera is fixedly connected to the front side of the sliding table. By arranging the reflecting mirror and the first adjusting assembly, the reflecting mirror transmits the shape of the inner wall of the strain hole of the elastomer to an external industrial camera through mirror reflection, the industrial camera can conduct visual detection on the reflecting mirror conveniently, meanwhile, the first adjusting assembly can adjust the inclination angle of the reflecting mirror according to the different depths of the strain hole, and the imaging range of single reflection is expanded; the second adjusting assembly is matched to drive the reflector to ascend and rotate in a stepping mode, and dead-corner-free continuous image collection of the whole inner wall surface of the strain hole from bottom to top is achieved.