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Aspherical glass lens multi-station precision molding equipment

A glass lens and precision molding technology, applied in glass molding, glass manufacturing equipment, glass production, etc., can solve problems such as low efficiency, long molding time, and unsuitability for industrial scale mass production, so as to ensure product molding accuracy and improve Production efficiency and the effect of improving the overall performance of the product

Inactive Publication Date: 2016-03-23
HUNAN UNIV
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Problems solved by technology

[0003] Aspherical glass lens precision molding is divided into four processes: heating, hot pressing, annealing and cooling demoulding. At present, single-station molding equipment is mainly used to complete the processing of aspheric glass lens. The four molding processes are all in the same process. The shortcoming is that the molding time is long, the efficiency is low, and it is not suitable for industrial scale production

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  • Aspherical glass lens multi-station precision molding equipment
  • Aspherical glass lens multi-station precision molding equipment
  • Aspherical glass lens multi-station precision molding equipment

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] The present invention can realize high-precision thermocompression molding of aspheric glass lenses with different diameters, such as image 3 As shown, taking the processing of an aspheric glass lens with a caliber of 10 mm as an example, the positioning surface of the mold 15 has been finely ground, the molding surface has been ground and polished to nano-level roughness, and the inner surface of the mold is coated. The high-precision mold can guarantee High quality aspheric glass lens.

[0020] The multi-station precision molding process of the aspheric glass lens 18 is now described. First, the prefabricated glass blank is loaded into the mold 15, as figure 1 As shown, the mold 15 is then sent from the right plate 14 of the cavity to the low-temperature heating station, and the cylinder 12 of the low-temperature heating station driv...

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Abstract

The invention belongs to the field of thermal forming equipment and in particular relates to aspherical glass lens multi-station precision molding equipment. The equipment comprises seven precision molding stations, namely a low-temperature heating station, a high-temperature heating station, a pre-pressing station, a hot-pressing station, a pressure-maintaining station, an annealing station and a cooling station. Optical glass blank is placed into a precision mould, the module can be moved among the different stations through a mould transferring mechanism, so as to respectively realize the processes of heating, pre-pressing, hot-pressing, pressure-maintaining, annealing and cooling and realize the high-precision thermo-compression formation of an aspherical glass lens, the molding quality and production efficiency of the aspherical glass lens are improved and the industrial volume production can be realized.

Description

technical field [0001] The invention belongs to the field of thermoforming equipment, and in particular relates to a multi-station precision forming equipment for an aspheric glass lens. Background technique [0002] Aspherical glass lens has superior optical properties such as aberration correction, image quality improvement, field of view expansion, precision improvement and system reduction, and has the advantages of small size, light weight, easy integration, arraying, etc., so it is widely used in the defense industry, Applications in optoelectronic communication products, optics, aerospace and life sciences are becoming more and more extensive. The traditional manufacturing method of optical glass components generally adopts material removal processing methods such as grinding and polishing, the processing accuracy is not stable, and its production efficiency is also very low. Therefore, a new precision molding technology for optical glass components has been develope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B11/00C03B25/06
CPCY02P40/57C03B11/00C03B25/06
Inventor 余剑武周小勇罗红文丞胡其丰
Owner HUNAN UNIV
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