Manufacturing method for controllable focal length liquid lens array

A technology of a liquid lens and a manufacturing method, which is applied in the directions of lenses, optics, instruments, etc., can solve the problems affecting the entrance pupil parameters of microlenses and the limited use range, and achieve the effects of excellent imaging quality, simple manufacturing method and controllable focal length.

Active Publication Date: 2017-06-20
UNIV OF SHANGHAI FOR SCI & TECH
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lenses produced by these traditional methods will inevitably affect the entrance pupil parameters of the microlens when sett

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method for controllable focal length liquid lens array
  • Manufacturing method for controllable focal length liquid lens array
  • Manufacturing method for controllable focal length liquid lens array

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] In the two methods for fabricating arrays of controllable focal length liquid lenses provided by the embodiments of the present invention, the focal length of the liquid lenses is determined by the quality of the dripping silicone oil. The substrate for making the controllable focal length liquid lens array is a silicone mixture, which can be heated to form an elastic solid. By controlling the fabrication temperature, the lens plano-convex or biconvex shape can be controlled. Through the two-dimensional displacement platform, the number and direction of the array lenses are controlled.

[0025] In the embodiment of the present invention, due to the difference in refractive index between the silicone oil and the silica gel, when the light enters the array lens, the optical path will be changed to form a lens.

[0026] In the embodiment of the present invention, since the density of the silicone oil is higher than that of the silicone base fluid, after dropping the silic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a manufacturing method for a controllable focal length liquid lens array. By controlling the mass of silicon oil dropped in a silica gel substrate, the refraction surface curvature and the lens focal length of a single microlens are controlled. By controlling the temperature in the experiment process, plano-convex or convexo-convex lens shapes are manufactured. By displacing a platform, the arrangement and the number of microlenses in the array are controlled. The manufacturing method is more suitable for preparation of the liquid microlens array of a larger area. The manufacturing period is short, the manufacturing cost is low and the manufacturing method is simple. The finished product of the invention is strong in anti-extruding performance and controllable in focal length, the array is structured. The method achieves the controllable lens focal length, the rapid response speed and the excellent imaging quality. The method can be widely applied in the fields of photovoltaic cells, microfluidic devices, three-dimensional imaging, monomolecular imaging, artificial compound eyes and optical coupling devices.

Description

technical field [0001] The invention relates to a manufacturing technology of an optical device, in particular to a manufacturing method of a liquid lens array with a controllable focal length. Background technique [0002] Controllable focal length array lenses have a wide range of applications in photovoltaic cells, microfluidic devices, three-dimensional imaging, single-molecule imaging, artificial compound eyes, and optical coupling devices. A part of the traditional microlens array is fabricated by microablation methods, such as laser ablation and ion beam cutting. This method of excision produces microlens arrays by sculpting on a 3D model. However, when the microlens array produced by this method of laser ablation and ion beam cutting has a high smoothness, it is difficult to remove the cascade, resulting in the roughness of the microlens refraction surface. Therefore, it is difficult for the microlens array produced by this method to be used in a high-precision opt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B3/00
CPCG02B3/0031
Inventor 王奂思戴博方朝龙张大伟
Owner UNIV OF SHANGHAI FOR SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products