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Contact lenses with colloid photonic crystal structural color and preparation method of contact lenses

A colloidal photonic crystal, contact lens technology, applied in glasses/goggles, optics, optical components, etc., can solve the problems of pigment or pigment wearer discomfort, single color, eye diseases, etc., to improve the eye hypoxia , Bright colors, the effect of promoting oxygen permeability

Active Publication Date: 2014-07-23
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the contact lenses currently on the market not only have a single color, but also the added pigments or pigments are easy to bring discomfort to the wearer, and even cause eye diseases in severe cases.

Method used

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  • Contact lenses with colloid photonic crystal structural color and preparation method of contact lenses

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Experimental program
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Effect test

preparation example Construction

[0032] The preparation method of the contact lens with colloidal photonic crystal structural color of the present application comprises the following steps:

[0033] Step 102: Prepare colloidal photonic crystal particles.

[0034] Colloidal photonic crystals are prepared by self-assembly of monodisperse microspheres through gravity sedimentation, electrostatic force or capillary force. The shape of the prepared colloidal photonic crystal includes spherical, hemispherical, ellipsoidal, columnar or thin slice.

[0035] Monodisperse microspheres include polystyrene, polymethyl methacrylate, silicon dioxide, titanium dioxide, iron oxide, ferric oxide, gold and silver, or any combination of more. Specifically, it can be microspheres of polystyrene, polymethyl methacrylate, silicon dioxide, titanium dioxide, iron oxide, ferric oxide, gold, silver, or polystyrene, polymethyl methacrylate, di Modified microspheres of silicon oxide, titanium dioxide, iron oxide, iron oxide, gold,...

Embodiment 1

[0046] 1. Preparation of colloidal photonic crystal particles:

[0047] 10 mL of monodisperse polystyrene microspheres with a diameter of 180 nm were formulated into an emulsion with a mass concentration of 4.0 wt%, and then dispersed into 100 mL of hexadecanon containing surfactant Hypermer 2296 (2.0 wt%) Colloidal photonic crystal particles can be obtained by self-assembling in an oven at 50°C for 72 hours in alkanes. Then, the colloidal photonic crystal particles are fully washed with n-hexane to remove the n-hexadecane, and then dried to obtain the colloidal photonic crystal particles. The colloidal photonic crystal particles were dispersed into a mixed solution of hydroxyethyl methacrylate and methylene bisacrylamide (molar ratio 30:1), and Irgacure 2959 (mass volume ratio 0.5%) was used as the initiator.

[0048] 2. Curing treatment of prepolymer solution:

[0049] Add 100 microliters of the above-mentioned prepolymer solution mixed with colloidal photonic crystal part...

Embodiment 2

[0053] 1. Preparation of colloidal photonic crystal particles:

[0054] Monodisperse silica microspheres with diameters of 180 nanometers, 220 nanometers and 320 nanometers were self-assembled by pulling method to prepare colloidal photonic crystal films, and many small colloidal photonic crystal fragments could be obtained by tapping the film. Then, the colloidal photonic crystal fragments assembled by microspheres of different sizes were mixed and dispersed into the mixed solution of hydroxyethyl methacrylate and methylene bisacrylamide (molar ratio 30:1), and Irgacure 2959 (mass volume ratio 0.5% ) as the initiator.

[0055] 2. Curing treatment of prepolymer solution:

[0056] Add 100 microliters of the above-mentioned prepolymer solution mixed with colloidal photonic crystal particles into a mold for contact lens preparation, irradiate with an ultraviolet lamp at 0°C for 30 minutes, and cure to obtain a contact lens primary lens.

[0057] 3. Hydration treatment of contac...

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Abstract

The application discloses a pair of contact lenses with colloid photonic crystal structural color and a preparation method of the contact lenses. The pair of contact lenses contains colloid photonic crystals, the colloid photonic crystals are distributed in the contact lenses as color elements, and the colloid photonic crystals form structural color patterns in the contact lenses. According to the contact lenses based on the colloid photonic crystal structural color, the colloid photonic crystals are arranged in the contact lenses and are distributed in the contact lenses as the color elements to form the structural color patterns, eyes can be beautified, the color elements introduced to the contact lenses can not bring eye discomfort or even eye diseases, conventional pigment and pigment are prevented from being used as a color source of the contact lenses, the contact lenses are elegant in appearance, and the eyes of a wearer are beautiful in colors. Meanwhile, the structural color is realized by unique light interference effect of the colloid photonic crystals, biocompatibility is good, and use is safe.

Description

technical field [0001] The present application relates to contact lenses, in particular to a contact lens with colloidal photonic crystal structural color and a preparation method thereof. Background technique [0002] With the development of science and technology and the improvement of living standards, people's pursuit of practicality, beauty and safety is becoming more and more intense. However, the market demand for contact lenses has been greatly expanded in the past few decades, crowding out the market of traditional frame glasses, and gradually becoming a kind of Stylish and convenient elements are popular all over the world. According to incomplete statistics, in the past 30 years, the total number of people wearing contact lenses in the world has increased by 35 times, and this data is still increasing day by day. [0003] Contact lenses can not only correct vision, but also add some pigments or pigments during the preparation process to prepare colored contact le...

Claims

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Application Information

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IPC IPC(8): G02C7/04
Inventor 杜学敏吴天准
Owner SHENZHEN INST OF ADVANCED TECH
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