35results about How to "Reduce heaviness" patented technology

The invention discloses a six-degree-of-freedom parallel mechanism helmet servo system, which relates to a virtual display interactive device, in particular to a helmet displayer for improving virtual reality. In the invention, six sets of universal supports are uniformly arranged on the periphery of an upper platform, each set of the universal support is connected with a controllable expansion link and is provided with a mechanism drive and kinematic parameter detecting unit, each set of composite spherical hinge is provided with a helmet weight detecting unit, and a lower platform is provided with a plurality of head movement detecting units. The six-degree-of-freedom parallel mechanism helmet servo system provided by the invention aims at lightening the helmet weight felt by a wearer and alleviating the helmet obstructive effect felt by the wearer during motion time, thereby alleviating feelings about heaviness, restriction and foreign bodies, improving the comfortableness of wearing the helmet and strengthening the immersion sense of the virtual reality; and simultaneously, the six-degree-of-freedom parallel mechanism helmet servo system detects the position of the head of thewearer by utilizing the mechanical measuring device of the servo system, and accomplishes the function of tracing the head of a participant in a virtual reality system.

The invention provides a virtual reality display module, a driving method and device and a virtual reality display device. The virtual reality display module comprises a display panel and a micro-lens layer located on the light-out side of the display panel. The display panel comprises a plurality of pixel units, and each pixel unit is composed of a plurality of sub-pixels. The micro-lens layer comprises a plurality of micro-lens units, wherein each micro-lens unit corresponds to part of sub-pixels on the display panel, the sub-pixels corresponding to each micro-lens unit image in a corresponding area of the micro-lens unit, and a display frame is formed by imaging of all the sub-pixels. By means of the virtual reality display module, the driving method and device and the virtual reality display device, the virtual reality display device can have a low burden sense.

The invention relates to an upper garment suitable for summer. The upper garment comprises a coat, a shirt collar and a pair of shirt sleeves. The coat is formed by sewing two oppositely-opened front pieces, a rear piece, two sleeve pieces and a turn-down collar. The upper garment is characterized in that shoulder pads which are excessively light in weight and good in breathability and are formed by sewing multi-layer large-aperture 3D mesh materials are fixed to the positions, located at the two shoulders, of the bottom face of the coat through pull threads respectively, collar hanging edges with a plurality of button holes are sewn inside the positions, located at the chest portions and on the inner faces of the front pieces, of the front pieces respectively, and circles of sleeve hanging edges are sewn on the lower portions, located at the elbow portions, inside the sleeve pieces of the coat respectively. The shirt collar is formed by sewing two oppositely-opened front chest pieces, an over shoulder piece and a collar. Opening parts of the two front chest pieces are connected through an upper row of buttons and a lower row of buttons to form an inverted trapezoid shape. A plurality of buttons which are connected with the collar hanging edges of the coat are sewn on the lateral side of each front check piece. Each shirt sleeve is formed by sewing the corresponding sleeve piece and a cuff which can be opened and closed. A welt is sewn on the edge of each sleeve piece. The upper garment can be widely used for summer.

The invention relates to a preparation method of an ultra-thin and ultra-transparent microporous membrane. The ultra-thin and ultra-transparent microporous membrane is a membrane containing micropores, the thickness of the membrane is below 5 μm, and the pore size of the micropores is below 5 μm; the preparation method is as follows: : Use a micro-nano foaming machine to foam the water-based foam to obtain bubbles, and then carry out micro-concave high-precision coating to obtain an ultra-thin and ultra-transparent microporous film; the water-based foam is mainly composed of water-based glue, water-based foam stabilizer, It is composed of silicone resin polyether emulsion water-based foam stabilizer and water; the foaming control parameters of the micro-nano foaming machine include: the specific gravity of the bubbles is 350~700 g / L, the working speed of the stirring head is 250~400 rpm, and the output of the pump 100~500L / hour; the diameter of the bubbles is less than 5μm; the thickness of the coating is less than 5μm during micro-concave high-precision coating, and at the same time greater than or equal to the diameter of the bubbles. The method of the invention is simple, the thickness of the prepared product is small, and the air permeability and anti-drilling down property are good, which effectively fills the blank of the prior art.

The invention discloses a high-permeability diversion layer material and a preparation method thereof, and relates to the field of disposable sanitary products. The preparation method of the high-permeability diversion layer material is characterized in that by compound-superimposing and selecting an upper layer vertical net and a bottom layer direct laying net, matching coarse denier profiled cross-section fibers and fine denier hydrophilic double components in the upper layer vertical net, reasonably matching hydrophilic and water-repellent double-component fiber in the bottom layer direct laying net, selecting a hot air penetration thermal stabilization mode and reasonably selecting lustring and setting technological parameters of a hot pressing roll, the high-permeability diversion layer material with good permeability is prepared. Therefore, the technical problems of poor diversion performance, inability in storing liquid, poor transient sucking effect, complex technology, poor permeability and difficulty in quantity production of a diversion layer material are solved, and the effects of enabling the diversion layer material to have good abilities of transient suction property, diversion property, barrier property and temporary liquid storage and to have good effects of ventilation, moisture permeation and reverse osmosis prevention are achieved.

The invention discloses a single-piece joist type annular passenger overcrossing. The single-piece joist type annular passenger overcrossing comprises a single-piece annular truss girder and a plurality of suspension arm transverse ribs, wherein the suspension arm transverse ribs are connected by an annular tie rod to form a low bearing type structure for supporting a bridge deck slab. According to the single-piece joist type annular passenger overcrossing, a lot of problems of current conventional annular steel box girder overcrossings are solved; the single-piece joist type annular passenger overcrossing has the advantages of simple structure, reasonability in stressing, economic manufacturing cost, convenience in building and maintaining, comfort in use, attractive appearance and the like, has relatively high economic and social values and is a novel overcrossing structure worthy of being popularized and used.

Disclosed is a patch support for a water-based plaster having the following structure, said patch support having excellent plaster-holding properties and excellent water-holding properties, inhibiting the sublimation of a drug to improve the long-lasting drug effect, imparting neither restricted feeling nor roughness to a wearer due to the thinness and good flexibility thereof, and having controlled moisture-permeability and little stickiness to thereby comfort the wearer. The patch support for a water-based plaster is a laminate consisting of three layers laminated together, i.e., a non-woven fabric layer (A), a non-woven fabric layer (B) and a film layer having through holes, said film layer being positioned between the non-woven fabric layers (A) and (B), wherein said film layer is formed of a resin comprising an olefin-based elastomer, and said through holes have an area of 0.02-0.18 mm2 per hole and a porosity of 1-10%.