3D printing-based curved microlens array manufacturing method

A technology of microlens array and 3D printing, which is applied in the direction of lens, manufacturing tools, glass molding, etc., can solve the problems of high cost, difficult control of microlens array parameters, complicated process, etc., to improve efficiency, provide manufacturing accuracy, The effect of simplifying the manufacturing process

Inactive Publication Date: 2015-03-11
FUZHOU UNIV
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Problems solved by technology

The above methods have their own advantages in the preparation of planar microlens arrays, but in the preparation of curved surface microlens arrays, the process is complicat

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  • 3D printing-based curved microlens array manufacturing method
  • 3D printing-based curved microlens array manufacturing method
  • 3D printing-based curved microlens array manufacturing method

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through specific embodiments and related drawings.

[0020] The present invention is based on the 3D printing curved surface microlens array manufacturing method. The 3D printing equipment is used to sequentially print the arc-shaped cross-sectional layers constituting the curved surface microlens array along the straight line direction of the curved surface of the curved surface microlens array, that is, the curved surface microlens array is processed. Print vertically and stack them to form a vertical curved microlens array. The specific production process is as follows: figure 1 shown, including the following steps:

[0021] Step S1: Establish a three-dimensional digital model of the curved microlens array, and discretize it into a series of ordered arc-shaped cross-sectional layers along the straight line di...

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Abstract

The invention relates to a 3D printing-based curved microlens array manufacturing method. 3D printing equipment is adopted to print along the straight conductor direction of a curved surface of a curved microlens array successively so as to form each arc-shaped cross-section layer of the curved microlens array, and the arc-shaped cross-section layers are stacked-up to form a vertical curved microlens array. The manufacturing method specifically contains the following steps: 1, a three-dimensional digital model of the curved microlens array is established and is made discrete along the straight conductor direction of the curved surface of the curved microlens array to form a series of ordered arc-shaped cross-section layers, and numerical control instructions of the 3D printing equipment are generated; 2, the 3D printing equipment is used to successively print each arc-shaped cross-section layer, the arc-shaped cross-section layers are stacked-up layer upon layer, and a printing material undergoes 3D molding so as to form the vertical curved microlens array; and 3, the curved microlens array is placed on a curved substrate which has the same curvature of surface with the curved microlens array and then undergoes subsequent heat treatment, and the curved microlens array finally undergoes polishing treatment to form a smooth microlens surface. The method has advantages of simple manufacturing technology, high precision and low cost.

Description

technical field [0001] The invention relates to the technical field of microlens array manufacturing, in particular to a method for manufacturing a curved microlens array based on 3D printing. Background technique [0002] Microlens array refers to an array formed by a series of microlenses with a diameter between several microns and several millimeters arranged in a certain way, which can realize the focusing, emission, deflection, division, recombination, switching, coupling, receiving, etc. of light beams. It is one of the important components of the micro-optical system and is widely used in naked-eye stereoscopic display, beam shaping, fiber coupling and other fields. Especially in artificial compound eyes and integrated imaging 3D displays, the curved microlens array can improve the viewing angle of view. At present, the manufacturing methods of the microlens array mainly include: (1) A metal mold is prepared by a mechanical method, and then the microlens array is pre...

Claims

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Application Information

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IPC IPC(8): B29C67/00C03B19/06G02B3/00
Inventor 郭太良周雄图胡海龙张永爱叶芸林志贤陈恩果姚剑敏林木飞曾祥耀
Owner FUZHOU UNIV
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