32results about How to "To achieve the purpose of plastic surgery" patented technology

A planar optical element and a design method thereof. The design method of the planar optical element comprises: designing a group of structures having a determined discrete phase; designing a two-dimensional antenna microarray (13) by using the group of structures having the determined discrete phase as array elements; and a basement (11) and a metal film (12) having a structure of the two-dimensional antenna microarray (13) forming the planar optical element. In the method, the amplitude and phase of a radiation field that has a vertical polarization state and is excited when a beam with a specific wavelength and a polarization state is incident on the planar optical element are modulated by modulating a structure parameter of the antenna array element, thereby shaping the beam as expected, and obtaining a desirable beam shaping result.

The invention discloses a cylindrical battery roll core shaping device which comprises a roll core positioning mechanism and a roll core shaping mechanism, wherein the roll core positioning mechanism comprises a bored needle seat; a fixed guide post is arranged in the bored needle seat; and a bored needle positioning hole and a bored needle mounting hole are formed in the fixed guide post. The cylindrical battery roll core shaping device further comprises a positioning pin, a positioning rotation gear, a positioning pin cylinder and a positioning motor gear, wherein the positioning motor gear is meshed with the positioning rotation gear; and the roll core shaping mechanism comprises three groups of roll core shaping assemblies, and two adjacent two groups of the three groups of roll core shaping assemblies form an angle of 120 degrees in a space structure. According to the cylindrical battery roll core shaping device disclosed by the invention, the angle position of the bored needle is adjusted by the roll core positioning mechanism, and the battery roll core is shaped by virtue of the three groups of the roll core shaping assemblies between every two groups of which the angle of 120 degrees is formed. Therefore, the battery roll core shaping aim is achieved, and the roundness of the battery roll core is effectively improved.

The invention discloses a laser trimming method for a super-abrasive grinding wheel, comprising the following steps: a, a grinding wheel is mounted on a numerical control grinding machine and is driven to rotate; b, a laser displacement sensor is aligned to the surface of the grinding wheel, does axial feeding movement relative to the grinding wheel and scans the surface of the grinding wheel, scanning data is input into a computer storing an ideal profile of the grinding wheel to form an actual profile of the grinding wheel on the surface, the actual profile is compared with the ideal profile of the grinding wheel to obtain a distribution condition of allowance removal; c. the computer sends trimming control signals to the numerical grinding machine and a laser through a microprocessor controller, so that the laser emits an appropriate laser pulse to burn a point to be trimmed on the grinding wheel according to the control signals, the laser displacement sensor detects present remained allowance of the point, and the allowance of the point in the computer is updated timely; and d, the step c is carried out repeatedly till the trimming precision as required is achieved.

The invention provides a casing shaper, which comprises a cylindrical body (7), one end of the body (7) is provided with a tapered head (71), the outer surface between both ends of the body (7) is provided with a plurality of first shaping ball slot groups (72) along the axial direction of the body (7), and the tapered outer surface of the tapered head (71) is provided with a plurality of second shaping ball grooves (75); each first shaping ball slot group (72) includes a plurality of strip-shaped first shaping ball slots (73) arranged along the circumference of the body (7), and first shaping balls (74) are arranged in the first shaping ball slots (73); the second shaping ball grooves (75) are arranged along the circumference of the tapered head (71), and a plurality of second shaping balls (76) are tightly arranged in each second shaping ball groove (75). The casing shaper utilizes the shaping balls to squeeze the damaged parts of a casing to achieve the goal of casing shaping.

The invention provides a shaping device of a transparent paper packing machine for a hard box cigarette carton. The shaping device comprises an upper heating plate and a lower heating plate vertically opposite to the upper heating plate. The lower heating plate is fixedly arranged in a groove of an output bottom plate, and the upper heating plate is arranged on an upper support set. The upper support set comprises a left stand column, a right stand column, a swing rod shaft, upper heating plate supports and first swing rods. The swing rod shaft is horizontally arranged, and the two ends of the swing rod shaft are rotatably arranged on the left stand column and the right stand column respectively. One end of each first swing rod is fixedly arranged on the swing rod shaft, and the other ends of the first swing rods are rotatably connected with the upper portions of the upper heating plate supports. The upper heating plate is arranged at the lower ends of the upper heating plate supports. The shaping device further comprises a driving mechanism, and the driving mechanism drives the swing rod shaft to rotate back and forth and then drives the upper heating plate to vertically move. The shaping device has the beneficial effects that the overall structure is simple and compact, and the automation degree is high; and the phenomenon that transparent paper of an original carton is loose, wrinkled and the like is eliminated, and the packing quality of the transparent paper carton is guaranteed.

The invention discloses a wrapping rod set for improving the wrapping precision of a film by an aviation data bus, which is used in conjunction with a wrapping head of a constant tension tape unwinding and wrapping machine. The wrapping rod set comprises a tight fitting part, a wrapping shaft Rod, fixed gasket, fixed spacer and shaping guide rod, in which the tight fitting parts are fixed to the wrapping head and the wrapping shaft, and there is a wire hole inside to pass through the metal inner conductor, and the wrapping shaft is connected with the wire hole. Through the hole through the belt, the combination of the fixed gasket and the fixed spacer block is connected to the outer end face of the tight fitting part and can be adjusted in the orthogonal direction, and the angle between the guide rod is connected to the fixed spacer block and the angle between the wrapping shaft Adjustable and locked, the wrapping tape is guided by the shaping guide rod and is wound on the metal inner conductor from the tape hole, and the wrapping angle can be adjusted to a lower limit of 15°. The application of the wrapping rod group of the present invention can realize the shaping of wrapping tapes and the high-precision film wrapping processing; it is also beneficial to realize the high-precision processing of high-performance data bus wrapping insulation and small dielectric constant.

The invention relates to a femtosecond laser frequency multiplier based on multiple chemical components and variable-doping multilayer nonlinear optical crystal. Wherein, the doping concentration varies along light direction and among layers. This invention is reliable and simple for usage, and allows super broad band.

The invention discloses a laser light source and a projection display device. Its laser light source includes: N groups of lasers, N convex lenses, at least one mirror unit, and a concave lens; each convex lens corresponds to a group of lasers, and is used to converge the beams emitted by the corresponding group of lasers; each mirror unit corresponds to at least A convex lens is arranged in the outgoing light direction of the corresponding convex lens, and the concave lens is arranged in the outgoing light direction of the at least one mirror unit; the light beams emitted by each convex lens corresponding to each mirror unit pass through the mirror unit and reach the Concave lens. The structure provided by the embodiment of the present invention reduces the distance between each optical device, thereby effectively reducing the volume of the laser light source and solving the problem that the volume of the current laser light source and the products (such as projectors) using the laser light source are too large. Thereby reducing the production cost.