Method for segmented manufacturing of super-large aperture Fresnel lens

A Fresnel lens and ultra-large-diameter technology, which is applied in the field of segmented production of super-large-diameter Fresnel lenses, can solve the problems of huge manufacturing costs, limited size of Fresnel lenses, and inability to manufacture large sizes, so as to achieve diversified applications, The effect of guaranteeing accuracy
CN107015299AInactive Publication Date: 2017-08-04CHENGDU FSCREEN SCI TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHENGDU FSCREEN SCI TECH
Publication Date
2017-08-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for segmentally manufacturing an ultra-large-diameter Fresnel lens, and relates to the field of Fresnel lens manufacturing and processing. Specifically, it includes the following steps: Determine the diameter of the ultra-large-diameter Fresnel lens; Divide the ultra-large-diameter Fresnel lens to be produced into several annular zones; Determine the number of spliced ​​bodies on each annular zone; According to the maximum cone that can be processed The size of the big end of the roller and the position of the annular belt; determine the taper and size of the tapered roller; use the tapered roller to make partial Fresnel lenses, that is, individual spliced ​​bodies; splice the partial Fresnel lenses, that is, spliced ​​bodies, into a complete Fresnel lens. The invention can manufacture large-sized and ultra-large-sized Fresnel lenses, and ensures the accuracy of microstructure molding.
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Description

technical field

[0001] The invention relates to the field of Fresnel lens manufacturing and processing, in particular to a method for segmentally manufacturing super-large-diameter Fresnel lenses. Background technique

[0002] Fresnel lens is an annular optical lens invented by a French physicist. With the advancement of technology, the demand for product size is increasing, and the application field is becoming more and more extensive. Especially in laser TV screens, solar photovoltaic photothermal applications, laser engineering applications and other major aspects. Lenses are made bigger and bigger. The manufacture of large aperture lenses has always been a worldwide problem. This patent is an expansion of technological innovation based on the invention patent of the independent patent ZL201410170440.1 "Tapered Roller for Making Fresnel Lenses", which can manufacture larger-sized Fresnel lenses.

[0003] The 500-meter-diameter radio telescope made in China undoubtedly ...

Claims

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