A kind of indentation manufacturing method of surface with microlens or microlens array structure
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A technology of microlens array and manufacturing method, which is applied in the fields of lenses, optics, instruments, etc., can solve the problems of environmental condition requirements, many influencing factors, and difficult control, etc., and achieve simple processing path, simple process, and less wear of the pressure head Effect
Inactive Publication Date: 2017-07-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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The environmental conditions of this processing method require a vacuum, and the method of controlling the lens vector and curvature by changing the viscosity and rotation speed of the UV glue is not easy to control, and there are many influencing factors
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[0040] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0041] A method for indenting a surface with a microlens or microlens array structure, the method comprising the steps of:
[0042] Step 1, preparing an indenter with a microlens shape at the end;
[0043] Step 2, smoothing the surface of the microlens or microlens array structure to be formed;
[0044]Step 3, on the forming press, the indenter in the step 1 uses the indentation method to process a lenticular dent on the surface to be formed at a speed of s and a pressure of m; s is 0.01mm / s~ 10m / s, m is 10N~10kN;
[0045] Step 4: unload the pressure of the indenter, and measure and calculate the error between the shape of the dent described in step 3 and the shape of the microlens at the end of the indenter in step 1 after the embossed dent has fully elastically recovered, Compensating the error on the shape of the indenter or trimming the indenter s...
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Abstract
The invention discloses a method for preparing indentations of a surface of a micro-lens or micro-lens array structure. The method comprises the steps of: manufacturing an indenter with an end having the micro-lens shape; performing smooth machining of the to-be-shaped surface of the micro-lens or micro-lens array structure; on a forming press, machining by the indenter with the speed as s and the pressure as m according to the indentation method to form lens-shaped indentations on the surface to be shaped; measuring and calculating the error between the indentation shape and the lens shape of the end of the indenter and compensating or modifying the shape of the indenter; carrying out indentation formation again by using the indenter which is already subjected to shape compensation or modification; if it is required to form the micro-lens array structure, setting the vertical and horizontal distances based on the working performance of the lens array, machining with the vertical and horizontal distances as the distance close to the lens center to generate other indentations on the mould plane and forming the micro-lens array structure; and cutting off the material bump parts generated during the indentation extrusion process and performing coating. The method simplifies the procedures of the batch treatment process for the surface of the micro-lens or micro-lens array structure.
Description
technical field [0001] The invention belongs to the technical field of micro-miniature precision manufacturing and processing, and in particular relates to an indentation manufacturing method on a surface with a microlens or microlens array structure. Background technique [0002] With the rapid development of modern optical and electronic technology, various small photoelectric products used in aerospace, optical electronics, laser and communication industries are emerging, such as cameras, digital projectors, CD players, image scanners, and laser printers. , fax machines, photocopiers, optical communication components and displays, etc., not only enrich people's daily life, but also provide convenience for education, teaching, historical data recording, information communication, economic development, national defense monitoring, etc. The lens plays a decisive role in this. The high-precision lens transmits the optical information in a certain way, or gathers or diverges, ...
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