57results about How to "Improve light protection" patented technology

The invention relates to a sealing device. The sealing device includes a body provided with a space which can be divided; the space which can be divided is divided into a first divided space and a second divided space through the body; the outer side of the body is covered with light shielding materials and / or the light shielding materials are clipped to the body; the sealing device is provided with a shield machine at the gap between the light shielding materials, wherein the shield machine at least shields one side of the gap and exceeds the gap length; at least one layer of separation material is arranged between the light shielding materials and a pre-shielding easily photo-decomposed material, the problem that the pre-shielding easily photo-decomposed material is easily reacted with other materials in contact with the pre-shielding easily photo-decomposed material and the physical and chemical properties of the easily photo-decomposed material are easily changed is solved, and the stability of the easily photo-decomposed material is ensured. The shield machine is arranged at the gap between the light shielding materials, the problem that light enters from the gap and photodecomposition of the easily photo-decomposed material is caused is solved, and the light shielding performance is kept well. The device is applied to the field of medical packing materials.

The invention discloses a sealing device which comprises a body with a separable space. The separable space is divided into a first separable space and a second separable space by the body, a first body and a second body are arranged on the body, light-proof materials cover the outer side of the first body and / or are clamped on the first body, light-proof materials cover the outer side of the second body and / or are clamped on the second body, and a masker at least shielding one side of the gap among the light-proof materials on the first body and the light-proof materials on the second body and exceeding the spacing length of the gap is arranged at the gap. By the aid of separation materials, the sealing device solves the problem that expected shielding easy photolysis substances react with materials contacting with the substances to cause physicochemical property change of the easy photolysis substances. Stability of the easy photolysis substances is ensured, good light-proof property is kept by the aid of the masker, and the sealing device is used for the field of medical packaging materials.

The invention discloses a sealing device which comprises a body with a separable space. The separable space is divided into a first separable space and a second separable space by the body, a first body and a second body are arranged on the body, light-proof materials cover the outer side of the first body and / or are clamped on the first body, light-proof materials cover the outer side of the second body and / or are clamped on the second body, the movable second body is fixed onto the first body and can move between a first position and a second position, a first opening is formed in the first body and sealed when the second body is placed at the first position, and a masker at least shielding one side of the gap among light-proof materials on the second body and light-proof materials surrounding the periphery of the first opening in the first body and exceeding the spacing length of the gap is arranged on the sealing device. The sealing device is used for the field of medical packaging materials.

In the case of a chip (1) having an integrated circuit (2), a dielectric mirror coating (3) having at least two dielectric layers (6, 7,..... H, L, H) is applied as light protection means for the at least one integrated circuit (2) on at least one portion of the surface of the chip (1).

The invention discloses a three-wavelength diffuse reflection optical chlorophyll detection device, which comprises a detection unit inserted in a nest and a sealing cover; the detection unit comprises a cylinder with three-stage stepped holes opened from top to bottom, and the upper end It is a conical frustum structure; on the outer peripheral surface of the cylinder located below the conical frustum, there are six oblique holes inclined upward by 52° symmetrically to the axis of the cylinder, and each oblique hole communicates with the first-order stepped hole; the six oblique holes are opposite to each other. The two slanted holes form a group; one of the slanted holes in each group is provided with a convex lens and an LED light source in sequence from top to bottom, and the other slanted hole is provided with a light-absorbing material; The lens is positioned through the ring sleeve; a light detector is arranged in the third step hole. The invention has the advantage that compared with the existing diffuse reflection detection device, the influence of specular reflection is eliminated from the design of the optical path, and the stability of the light intensity and the overall light protection are greatly improved.

The invention discloses a full-degradable salt large packing material with high quality printing effect. The salt large packing material comprises woven cloth and is characterized in that the woven cloth is taken as the basal body and provided with a polymer film, and the surface of the polymer film and synthetic paper are rolled in a heat sealing manner; the woven cloth comprises non-toxic polypropylene and calcium carbonate degradation master batch, and the weight ratio of the non-toxic polypropylene and the calcium carbonate degradation master batch is (70-85): (15-30); the polymer film comprises non-toxic polyethylene and calcium carbonate degradation master batch, and the weight ratio of the non-toxic polyethylene and the calcium carbonate degradation master batch is 70-85:15-30. Thesalt large packing material has the characteristics of strong tensile property, sealing property, photophobism, easy printing and high refinement; the rejected material of the packing material can bequickly and fully degraded in the natural environment; the requirements of environmental protection can be met; and the characteristics of the packing material particularly meets the requirements of large packing for the salt above 20 kilograms, can be loaded, is waterproof and can prevent the iodine ions in the salt from volatilizing, has artistic appearance and good durability, and is suitable for repeated handling and super-high stacking.

The invention discloses a light-screening transparent PVC material and a preparation method thereof. The light-screening transparent PVC material comprises the following raw materials in parts by weight: 100 parts of PVC resin, 40-80 parts of a plasticizer, 0.4-2.0 parts of a calcium / zinc heat stabilizer, 2-12 parts of an auxiliary heat stabilizer, 0.5-1.0 part of a lubricant and 0.01-0.05 part ofa light-screening agent, wherein the plasticizer is a trimellitate plasticizer, and the light-screening agent is composed of 75-90% of nano zinc oxide and 10-25% of nano carbon black. The light-screening transparent PVC material disclosed by the invention can effectively block and shield light which is easy to cause drug degeneration and has a wavelength range of 250-550 nm, can effectively transmit visible light, is simple in preparation process, can be suitable for preparing a wide-wave light-screening infusion apparatus, and solves the problems of narrow light-screening wavelength range, low visible light transmittance and potential safety hazards of an existing PVC light-screening infusion apparatus material.