31results about How to "Free from stimulation" patented technology

The invention discloses minodronate tablets and a preparation method thereof. The tablets comprise the following components in parts by weight: 10-20 parts of minodronate solid dispersion, 30-80 parts of diluent, 3-10 parts of disintegrant, and 0.5-2 parts of lubricant, wherein the minodronate solid dispersion is prepared from minodronate, polyethylene glycol and polyvinyl alcohol. The minodronate tablets provided by the invention can reduce drug irritation, improve patient compliance, and increase absorption rate, so that the drug can provide better service for patients. In addition, the fault tolerance of prescription and production process is large, so that minodronate tablets are safe and effective and have controllable quality.

Variable optical liquid crystal welding goggles include a control module (1), an optical trigger module (2), a photosensitive module (3), a manually setting module (4), a regulator module (5) and liquid crystal lenses (6). The manually setting module (4) is used to set related parameters of the variable optical liquid crystal welding goggles. When welding, the optical trigger module (2) receives the optical signal of the welding arc and triggers the control module (1); the photosensitive module (3) is used to capture the information of intensity of welding arc and send it to the control module (1); the control module (1) sends a control signal to the regulator module (5) basing on the information of intensity of welding arc received from the photosensitive module (3) and the parameters set by the manually setting module (4); the regulator module (5) adjusts the rate of light transmission of the liquid crystal lens (6) according to the received control signal. The variable optical liquid crystal welding goggles increase operative flexibility of the welders while protecting eyes of welders.

The invention relates to a high-strength anti-blue light and anti-ultraviolet PC lens and a preparation method thereof. The optical-grade high-strength PC resin is used as a base material. The lens has good mechanical properties, good impact resistance, and high strength. The hardening of fluorine hardening solution solves the problem of poor wear resistance of PC resin. The prepared high-temperature resistant anti-blue light and anti-ultraviolet light absorber can have good compatibility with PC resin, and can process lenses through injection molding process, so that the preparation process is simple, the product stability is good, and the cost is low. The transmittance of the lens is improved by coating, and the chromatic aberration problem of the anti-blue light lens is solved as much as possible. PC lens has good visibility and excellent protection against harmful blue light and ultraviolet light, and retains beneficial blue light as much as possible. Under different light conditions, it can protect the eyes from the stimulation of harmful blue light and ultraviolet light, avoid Damage to the eyeball.

The invention discloses an efficient and energy-saving shrink machine for heat shrink tubes on an assembly line. The efficient and energy-saving shrink machine comprises a trapezoidal support. Rollers are mounted on the upper side of the trapezoidal support, rotary shafts are respectively arranged on the left side and the right side of the trapezoidal support and are connected with a motor, a conveyor belt is connected onto the rotary shafts and the rollers, heat shrink tube support strips are uniformly distributed on the conveyor belt, two rows of harness ring clamp grooves are formed in the conveyor belt and are respectively close to the edges of two sides of the conveyor belt, the harness ring clamp grooves on each row are positioned on the same straight line, and a heat-insulation plate is fixed to the upper side of the trapezoidal support and is positioned on the lower surface of the conveyor belt. The efficient and energy-saving shrink machine has the advantages that the work efficiency can be improved by the aid of an assembly line form, the heating time and heating temperatures can be effectively controlled, and the high-requirement shrinking purpose can be achieved; the purpose of saving energy can be achieved by means of recycling hot air, workers can be separated from heating locations and can be protected against heating of the shrink tubes, irritation of other insulating gas and effects of the high temperatures, accordingly, the physical health of the workers can be protected, and occupational diseases can be reduced.