7 results about "Optical glass" patented technology

The invention relates to image sensor packaging piece and its optical glass and processing method. The packaging piece includes chip carrier, annular bearing, sensor chip, and optical glass. It includes the following steps: processing grinding before cutting the whole optical glass into many monomers; forming many optical glass monomers with at least one brim rough surface to adhere on the sensor chip bearing to reduce thermal expansion coefficient difference, avoid delaminating caused by thermal stress, prevent moisture and impurity from invading to ensure sensor chip accepting optical signal capacity.

The invention relates to diamine monomer containing anhydrohexitol unit and its preparation, which pertains to high molecular material area. The progress compresses the following steps: using etherification to make anhydrohexitol react with aromatic nitro halogenide to synthesize nitro compound containing diamine monomer; using reduction to deacidize nitro compound containing diamine monomer to get diamine monomer containing anhydrohexitol unit. The invention possesses the advantages of simplicity of process, sinple control and high yield. Said product can be used in field of optical glass, color filter, optical device and coating material.

The invention discloses a chalcogenide glass sphere preparation method and an extrusion forming device used in the chalcogenide glass sphere preparation method, and belongs to the technical field of chalcogenide glass molding. The method mainly solves the problems of low efficiency and large material loss of the conventional method for rounding square particles into spheres. The method is mainly characterized by comprising the following steps: (1), preparing a chalcogenide glass blank block in a melting manner; (2), preheating an extrusion forming device containing a plurality of spherical forming mold cavities; (3), putting the chalcogenide glass blank block into an extrusion forming device, and performing heating until the chalcogenide glass blank block is softened and deformed; and (4),enabling the softened and deformed chalcogenide glass to enter a cavity of a forming mold, and further extruding the required chalcogenide glass ball material. The method provided by the invention has the characteristics of simple and convenient operation, high efficiency, good product quality stability and high material utilization rate, and is mainly used for preparing the small sulfur opticalglass balls with the diameter of phi 5mm and the diameter of phi 15mm.

A method for purifying potassium nitrate comprises the following steps: S1, washing raw materials sufficiently, separating solid and liquid to obtain filter cake and filtrate; S2, dissolving that filter cake to form a saturated solution, adding KOH solution into the saturated solution for sufficient reaction, filtering out the precipitate after the reaction, recrystallizing the solution, and finally washing and drying the crystals. The potassium nitrate purifying method of the invention has the advantages of simple production process, the purity of the potassium nitrate product obtained by theproduction reaches over 99.99%, meets the high-purity grade potassium nitrate standard (industrial potassium nitrate GB1918-2011), and meets the requirements of potassium nitrate products for opticalglass. In particular, the method for purifying potassium nitrate of the present invention can adopt agricultural grade potassium nitrate, industrial grade potassium nitrate and reinforced optical glass salt bath inactivated potassium nitrate as raw materials, thereby reducing the production cost.

The invention relates to production equipment of solar ultra-clear embossed glass, in particular to an online coating system for solar ultra-clear embossed glass. The system includes a glass melting furnace, a calender and a movable table connected in sequence, and an annealing furnace is arranged on the movable table; the feature is that a silicon dioxide coating control room equipped with a reciprocating spray gun is arranged in the annealing furnace. It mainly solves the technical problems of silicon dioxide coating in the existing off-line processing method. The production process is complicated, the time consumption is long, and the materials, energy and labor are not economical. It can improve the effective light transmission of ultra-clear patterned glass. High efficiency, reduced material consumption, reduced manpower waste, multi-process one-line synthesis, to achieve the purpose of producing solar ultra-clear embossed coated glass substrates with the best performance and economic effects.

The present invention provides a device for comparing size of an optical glass refractive index. The device comprises a fixed pedestal which is connected with a clamping module, a scale plate is fixed at the lower portion of one side of the fixed pedestal, the scale plate is close to the fixed pedestal, the other end of the clamping module is connected with a clamping rack, and a laser pen is clamped in the clamping rack. The device employs linear propagation principle of the laser to visually compare the size of the optical glass refractive index, the principle is intelligible, the understanding is easy, and the device is suitable for teaching demonstration or simple optical glass distinguishing. The device is simple in structure, intelligible in principle and brief in usage process.

The invention belongs to the technical field of optical lens cleaning, and particularly relates to cleaning powder and a using method thereof.The cleaning powder is prepared from, by weight, 15-20 parts of chelating agent, 25-30 parts of anionic surfactant, 25-30 parts of inorganic salt, 10-15 parts of pH regulator and 3-8 parts of nonionic surfactant. According to the invention, the cleaning powder is used for cleaning the mounted optical lens, so that dirt at the fitting position can be cleaned, optical cement and the surface of optical glass cannot be corroded, defective products with dirt can be cleaned after mounting is completed, the production loss is reduced, and the production benefit is improved.