Roll forming device and roll forming method for glass optical lens

Abstract

The invention discloses a glass material optical lens rolling forming device which comprises a conveying mechanism, a mold roller and a carbon dioxide laser, an optical lens mold is arranged on the outer wall of the mold roller and provided with a forming face capable of being matched with an optical lens finished product in shape, and rotation of the mold roller and conveying of a glass preform are carried out at the same time. A glass preform on a transparent base plate can be rolled and formed through a forming surface, and meanwhile, a carbon dioxide laser is used for emitting carbon dioxide laser towards the glass preform, so that the upper surface (the surface in contact with an optical lens mold) is heated and softened in the process that the glass preform is subjected to mold pressing by a forming concave surface; rapid roll forming of the glass material optical lens is facilitated, and the problem that in the prior art, the glass material optical lens with high softening temperature and high hardness is difficult to roll and form is solved. The invention further discloses a rolling forming method of the glass material optical lens, and the glass optical lens which is high in hardness and strength and good in optical performance can be manufactured.

Description

technical field [0001] The invention relates to the field of optical lens processing, in particular to a roll forming device and a roll forming method for an optical lens made of glass material. Background technique [0002] As an important optical element, precision optical lenses include Fresnel lenses (also known as threaded lenses), microlens arrays and microcylindrical lens arrays. It realizes optical functions such as collimation, imaging, and focusing, and has the advantages of small size and high integration. It has important applications in the fields of optoelectronic communication, 3D imaging, and laser coupling. Roll forming is an important method for low-cost and mass production of optical lenses, and has important research value. [0003] At present, the objects of roll forming of optical lenses are still materials such as flexible polymer films, which are determined by the conditions of roll forming. The mold roller is equipped with a heating device, and the...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a roll forming device and a roll forming method for glass material optical lenses, which uses laser to perform local rapid heating to realize rapid roll forming of glass material optical lenses, and solves the problem of high softening temperature in the prior art , Hard glass optical lenses are difficult to roll forming

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