Die for manufacturing aspheric lens by compounding method
A technology of aspherical lens and spherical lens, which is applied in the direction of manufacturing tools, glass manufacturing equipment, glass molding, etc., can solve the problems of resin cracking, lens mirror damage, lens and mold adhesion, etc., and achieves small internal stress, simple structure, low cost effect
Inactive Publication Date: 2010-01-06
赵罘 +2
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Problems solved by technology
[0002] The use of thermosetting resin for molds to manufacture aspheric lenses is an emerging advanced manufacturing technology. The application of this technology increases productivity, improves processing accuracy, and facilitates mass production. However, the application of this technology to manufacture aspheric lenses also has shortcomings, such as , the part of the mold that is in contact with the lens is made of metal, and the stress of the lens cannot be fully released during the forming process, resulting in resin cracking
The resin used to process the lens is a thermosetting resin. Therefore, due to the influence of temperature stress after the lens is formed, the radius of curvature of the mirror surface changes, causing wavefront errors.
Due to the use of thermosetting resin, high temperature is required in the processing of the lens, so the release agent is very difficult to choose, resulting in the adhesion of the lens and the mold during the demoulding process of the upper and lower molds, resulting in damage to the lens mirror
Therefore, the traditional method of using thermosetting resin to manufacture aspheric lenses through molds cannot guarantee the processing quality very well.
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[0009] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0010] Such as Figure 1 to Figure 2 As shown, it is a mold for manufacturing an aspheric lens by a composite method provided by the present invention, specifically a mold. The mold of the present invention is made up of following several main parts: upper mold, lower mold, upper glass mold core, lower glass mold core, wherein upper mold and upper glass mold core are fixed, lower mold and lower glass mold core.
[0011] The upper mold and the lower mold of the mold realize the upper and lower positioning through their respective guide post holes, and the upper mold moves down along the guide post holes to close with the lower mold, so that the upper and lower glass cores fixed by the upper and lower molds are closed. The surface of the core is a concave aspherical surface, which can form a closed aspheric space between the glass cores.
[0012] Pre-place a spherica...
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The invention discloses a die for manufacturing an aspheric lens by a compounding method, which consists of an upper die, a lower die, an upper glass core and a lower glass core, wherein the upper glass core and the upper die are fixed, the lower glass core and the lower die are fixed, when the upper die and the lower die are closed, an aspheric space is formed in a cavity, and through ultraviolet irradiation, a spherical lens in the aspheric space and photosensitive resin are compounded to form the aspheric lens. The die is a production device for processing the aspheric lens, and is suitable for occasions for forming the aspheric lens by compounding the resin on the spherical lens.
Description
technical field [0001] The invention relates to a mold for producing an optical lens from a photosensitive resin, in particular to a mold for producing an aspherical lens. Background technique [0002] The use of thermosetting resin for molds to manufacture aspheric lenses is an emerging advanced manufacturing technology. The application of this technology increases productivity, improves processing accuracy, and facilitates mass production. However, the application of this technology to manufacture aspheric lenses also has shortcomings, such as , The part of the mold that is in contact with the lens is made of metal, and the stress of the lens cannot be fully released during the forming process, resulting in resin cracking. The resin used to process the lens is a thermosetting resin, so after the lens is formed, due to the influence of temperature stress, the radius of curvature of the mirror surface changes, causing wavefront errors. Due to the use of thermosetting resin,...
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IPC IPC(8): C03B11/08
CPCY02P40/57
Inventor 赵罘王平龚堰珏张力辛洪兵林建龙刘玉德孟春玲张媛项辉宇
Owner 赵罘