Precise Pressing Method for Optical Glass Lens
An optical glass and precision technology, applied in the field of precision molding of optical glass lenses, can solve the problems of inability to complete the compression molding of optical glass lenses, the inability of the lenses to meet the requirements, and the inability to accurately control the weight of the liquid glass.
Active Publication Date: 2021-04-09
HUBEI YANGTZE PHOTOELECTRIC INSTR CO LTD
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Problems solved by technology
[0006] The present invention provides a precision molding method for optical glass lenses, which solves the problems in the prior art that the weight of liquid glass cannot be precisely controlled, the lens with relatively high precision requirements cannot be satisfied, and some optical glass lenses that require complex surfaces cannot be completed. Press Molding Problems
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[0022] In order to make the technical means, creative features, goals and functions achieved by the present invention clearer and easier to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:
[0023] The present invention proposes a precision molding method for an optical glass lens, comprising the following steps:
[0024] S1. Scribing: Take the raw material of the glass column, and draw a dividing line on the raw material of the glass column according to the demand for making an optical glass component product;
[0025] S2. Material cutting: Use the electric cutter to align with the dividing line on the raw material of the glass column and cut to obtain the glass block. Paste the line on the glass column, and then heat the electric heating wire. After heating for a certain period of time, remove the electric heating wire, and drop some cold water on the position where the glass column is ...
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The invention provides a precision molding method for an optical glass lens, comprising: dividing the raw material of the glass column according to the demand for making a piece of optical glass element product; cutting according to the dividing line of the raw material of the glass column to obtain a glass block; Put the block into the optical glass element precision molding softening furnace for softening; use the optical glass transfer device to take out the softened glass block; put the softened glass block into the pressing mold for pressing; press the formed optical Put the glass mirror into the fine annealing furnace to cool down; finally take out the finished optical glass lens from the fine annealing furnace; the present invention uses the glass column raw material to prepare the material by thermal cracking, and controls the volume of the prepared material through precise scribing, so that the thickness of the finished product can be precisely controlled , Using the natural bursting surface as the molding surface, the bursting surface will not produce any scratches so that the smoothness of the molding surface can be guaranteed.
Description
technical field [0001] The invention relates to the field of optical glass preparation, in particular to a precision pressing method for an optical glass lens. Background technique [0002] There are two thermoforming optical lens technologies in optical lens processing: [0003] The first is the die-casting method: use a glass rod with a length of about 1.2M to 1.5M produced by a glass block factory, put one end into a high-temperature furnace to soften, then put the softened end on the mold for pressing, and then cut off the glass near the edge of the mold. Put the glass rod back into the softening furnace to prepare for the next softening and pressing. The optical blank in the mold is cooled slightly and then taken out and put into the annealing furnace for annealing; the second is the pouring method: the glass is melted into a liquid state in the crucible and poured into the mold Re-die-casting; no matter which of the above technologies has its own defects: [0004] Di...
Claims
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IPC IPC(8): C03B33/095C03B23/03
CPCC03B23/03C03B33/095
Inventor 何文华
Owner HUBEI YANGTZE PHOTOELECTRIC INSTR CO LTD