Optical glass
An optical glass and glass technology, applied in the field of glass preforms and optical components, can solve the problems of glass streaks and intrinsic quality that are not easy to control, poor streaks and intrinsic quality, and expensive, and achieve the effect of good chemical stability.
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[0089] Example
[0090] The following examples are used to explain the present invention, but the present invention should not be limited to these examples.
[0091] [Optical Glass Example]
[0092] First, in order to obtain glass No. 1-30 with the composition shown in Table 1 to Table 3, carbonate, nitrate, sulfate, hydroxide, oxide, boric acid, etc. are used as raw materials, and the optical glass composition The corresponding raw materials are weighed in proportion and mixed thoroughly to become the blended raw materials. The blended raw materials are put into a platinum crucible, heated to 1250 to 1450°C, and clarified and stirred for 3 to 5 hours to form a uniform molten glass. The molten glass was poured into a preheated mold and kept at 600 to 700°C for 2 to 4 hours, and then slowly cooled to obtain each optical glass of glass No. 1-30.
[0093] In addition, the characteristics of each glass were measured by the methods shown below, and the measurement results are shown in Tab...
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