Optical glass
An optical glass and optical element technology, applied in the field of germanium gallate optical glass, can solve the problems of low dispersion, crystallization performance, mechanical strength and chemical stability, poor process performance, low refraction of fluoride glass, etc., and achieve glass performance. Good, low glass price, high transmittance effect
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[0026] Examples 1 to 12 in Table 1 are used by the present invention to illustrate the high refraction and high dispersion infrared germanium gallium acid with a refractive index (nd) between 1.94 and 1.96 and an Abbe number (υd) between 21 and 23 Typical experiments on salt optical glass. These examples are illustrative only, and the present invention is not limited to these examples.
[0027]Calculate, weigh and mix these raw materials according to the ratio provided in the following table 1, and put the batch material made into the smelting device (in view of the application requirements of the present invention, the smelting device needs to adopt a platinum crucible, a platinum stirrer, and a water removal device) , and then smelted at 1300°C to 1350°C by appropriate stirring, clarification, water removal, and cooling processes, and then poured or leaked into the forming mold. Finally, post-treatments such as annealing and processing, or compression molding by secondary m...
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