Precise profiling 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 accurately control the weight of liquid glass, inability to meet the requirements of the lens, and inability to complete the compression molding of optical glass lenses.
Active Publication Date: 2018-11-20
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 realized by the present invention, the creation features, the achievement of the purpose and the effect 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, which includes 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 a piece of optical glass element product;
[0025] S2. Cutting material: Use an electric heating cutter to align the dividing line on the raw material of the glass column to cut to obtain a glass block. The specific operation method is to use the electric heating wire on the electric heating cutter to align the line drawn on the glass column, and then tighten the electric heating wire...
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The invention provides a precise profiling method for an optical glass lens. The method comprises the following steps: marking parting lines on a glass column raw material according to the required quantity for making an optical glass component product; performing cutting according to the marked parting lines on the glass column raw material to obtain glass blocks; placing the glass blocks into anoptical glass component precise profiling softening furnace for softening; taking the softened glass blocks out by an optical glass transfer device; placing the softened glass blocks into a profilingmold for profiling molding; placing the press-molded optical glass mirror into a precise annealing furnace for cooling; finally, taking the finished optical glass lens from the precise annealing furnace. The glass column raw material is adopted for preparation in a thermal breaking manner, preparation size is controlled by precise marking, so that thickness of a finished product can be controlledprecisely, a natural breaking surface serves as a molding surface, and no scratch is produced on the breaking surface, so that 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 molding method for an optical glass lens. Background technique [0002] There are two types of thermoforming optical lens technologies in optical lens processing: [0003] One 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, and extend one end into a high-temperature furnace to soften, and then put the softened end on the mold to press, and then cut off the glass close to the edge of the mold. Play back the glass rods to the softening furnace for the next softening and pressing. The optical blanks in the mold are taken out and placed in the annealing furnace for annealing after cooling for a while; the second is the pouring method: the glass is melted into a liquid state in a crucible and poured into the mold Re-die casting; either of the above technologies has its own shortcomings: [0004] Di...
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Login to View More IPC IPC(8): C03B33/095C03B23/03
CPCC03B23/03C03B33/095
Inventor 何文华
Owner HUBEI YANGTZE PHOTOELECTRIC INSTR CO LTD