39results about How to "Prevention of myopia" patented technology

The invention discloses a sitting posture correcting belt for a student. The sitting posture correcting belt for the student comprises an 8-shaped shoulder girdle which is arranged around the back and the shoulders; adhering buckles are respectively arranged at two ends of the shoulder girdle in front of the chest; a fixed wide strap of which the free end is fixed to a backrest of a chair is connected to the middle of the 8-shaped shoulder girdle at the back by a sewing manner; a packaging bag is sewed to the wide strap. When the student wants to bend over on a desk to watch book, write or sleep during the class, the shoulders are pulled by the shoulder girdle to enable the student to sit up. The sitting posture correcting belt for the student can be used at both school and home, the waist and back of the student can be straight, and thus the correct sitting posture can be built, and the advantage of preventing shortsightedness is brought; the sitting posture correcting belt for the student is a necessary tool for the student at each school and home.

The invention discloses a seat for automatically and intelligently correcting sitting posture, and also discloses a using method of the seat for automatically correcting sitting posture. Through at least two distance detection sensors installed on the backrest, the detection of the inclination angle of the back of the human body is realized; the detection of the activity state of the human legs is realized through the pressure sensor, and the combination of the pressure sensor and the distance detection sensor is used to determine whether the human body is on the chair surface. The lifting mechanism with locking ability realizes the adjustment of seat height; the rotating mechanism and inclination sensor with locking ability realize the adjustment of the horizontal angle of the seat surface; cooperate with the microprocessor to realize the automatic adjustment of the height and horizontal angle of the seat surface, thus Make sure that the human body is in the correct sitting posture at all times to ensure good health.

The invention provides lyophilized powder, and particularly relates to lyophilized garden radish leaf (radish leaf) powder which has long storage time and rich nutrtion, is easy to be absorbed by human bodies, and is environment-friendly. By weight percent, the lyophilized garden radish leaf (radish leaf) powder is composed of 50% to 100% of lyophilized garden radish leaf (radish leaf) powder, 0 to 10% of oligosaccharide, 0 to 30% of resistant starch or maltodextrin, 0 to 20% of xylitol, and 0 to 0.2% of flavorant.

The invention relates to a pair of myopia preventing and controlling glasses integrating accommodative-convergence training and dynamic reading. The pair of glasses comprises mother lenses and assistant son lenses, and the mother lenses and the assistant son lenses in a glasses frame are connected via middle beams. The pair of glasses is characterized in that the assistant son lenses are two independent assistant son lenses which are respectively matched with vision degrees of left and right lenses of the mother lenses; a driving motor is installed on the middle beam of a mother lens frame; the driving motor drives the son lenses to rotate or overturn by taking the middle beam as the central point; and a control device supplies power to the driving motor and electrically controls the driving motor. According to the glasses provided by the invention, the glasses are used to improve the adjusting ability and sensitivity of ciliaris and alleviate visual fatigue, and meanwhile change near vision to looking in distance and convert static reading to dynamic reading so as to prevent, control and alleviate generation and development of myopia and avoid early occurrence of presbyopia. According to the pair of glasses disclosed by the invention, the defects that a pair of glasses in the prior art is just used to look nearly and is not used to look in distance in the using process, has a single reading function, cannot be used as a training tool for accommodative convergence, is just used for static reading and cannot be used for dynamic reading are overcome.

The invention discloses a radish sprout series side dish and a preparation method thereof, which belong to the technical field of food processing. It is characterized in that the side dishes of the radish sprout series include ready-to-eat cold salad of radish sprout, radish sprout stem pickles, radish sprout pickles and pickles. This series of side dishes are all made with radish sprouts as the main ingredient and with auxiliary ingredients. The flavor side dishes of the radish sprouts series prepared by the method retain the natural flavor and nutritional components of the radish sprouts, are bright in color, and are convenient to eat, and are delicious appetizers suitable for all ages; moreover, the production process is simple and easy to operate, which is conducive to the realization of industrialization production and processing.

The invention relates to an anti-fatigue anti-myopic lens and a production method, belonging to a lens and the production method thereof. The lens is made of the following raw materials based on weight percentage: 72-78% of diallyl terephthalate, 18-24% of diallyl 2,2'-oxydiethyl dicarbonate, 0.08-0.12% of 2-(2-hydroxy-5-tert-octyl phenyl) benzotriazole, 0.18-0.22% of UV absorber 2-(2- hydroxy-3-tert-butyl-5-methyl-phenyl)-5- chloride benzotriazole, 0.2-0.4% of red inorganic pigments, 0.3-0.5% of blue inorganic pigments, 2.3-2.5% of peroxide peroxydicarbonate, and 0.5-0.7% of dibenzoxazole diphenylethylene. The lens has the advantages that as the formula adopts anti-UV raw materials, the lens can effectively reduce eye fatigue, prevent the occurrence and development of myopia, and filter harmful light, such as ultraviolet rays and radiation waves causing eye injury, so that the light becomes soft and comfortable to actually achieve eye protection effect.

The invention belongs to the technical field of stationery commodities, and relates to a semi-automatic pencil-sharpening machine. The semi-automatic pencil-sharpening machine comprises a rack, a rotary motor-speed reducer combination, a rotary disc, a cutting motor, a cutting cutter disc and a plurality of pencil fixing assemblies. An inner gear ring is horizontally arranged on the rack. The rotary disc is in a disc shape, and a plurality of mounting holes are formed in the edge of the rotary disc. An output shaft of the rotary motor-speed reducer combination is fixedly connected with a hub. Each pencil fixing assembly comprises a small gear and a plurality of snap springs, and the pencil fixing assemblies are mounted in the mounting holes. The small gears are engaged with the inner gear ring, and a hole is formed in the middle of each small gear. Each snap spring is in a hollow barrel shape and is provided with a plurality of sections and fixedly connected in the hole of the corresponding small gear. The cutting cutter disc is conical, cutting edges are arranged on the periphery of the cutting cutter disc, and the hub is fixedly connected with an output shaft of the cutting motor. The semi-automatic pencil-sharpening machine achieves semi-automatic treatment and is high in treatment efficiency; and students do not need to sharpen pencils manually and can have a rest outdoors at break, asthenopia is relieved, nearsightedness is effectively avoided, and a large amount of time of the students is saved.