KR20090021445A - Change of color contact lens - Google Patents

Abstract

A discoloration contact lens is provided to immediately manage the lens by changing the color of the lens by feeling the dramatic fatigue of eyeball. A thermo chromic dye(100) includes a thermo chromic color element as the main materials. The thermo chromic color element is comprised of an electronic donating organic compound, an electron accepting compound, and alcohols. The electron accepting compound comprises the propyl gallate. The alcohols comprises the N-octyl alcohol (-40°C), the N-dectylalcohol (-13°C), the N- lauryl alcohol (16°C), the N- myristyl alcohol (35°C), the N-cetyl alcohol (45°C), the N-stearyl alcohol (53°C) etc according to the variable color temperature.

Description

Color change contact lens {Change of color contact lens}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a color change contact lens, and more particularly, to a color change contact lens that is reversibly changed in accordance with a temperature change of an eye using a thermal dye.

Thermal dyes; Thermopigment and microcapsule processing technology; Thermophilic dye, commonly known as thermo-microcapsules, uses thermo-pigmentation dyes, which are caused by changes in chemical structure and change in color by heat as well as light.

Dye is a material that is colored by receiving light, and is affected by the surrounding environment. Among them, thermochromic dye is characterized by color change according to temperature and sensitive changes of external environment. In order to protect the thermosensitive dye incorporating a microcapsules, a kind of protective layer was applied to the present invention.

In addition to the technical description above, thermosensitive dyes are dyes that can be reversibly changed in different colors in a specific temperature range, and in detail, change in color depending on the temperature difference of 5 ° C in the temperature range of -10 ° C to 60 ° C. The thermosensitive dye can be applied to the present invention by applying a reversible change in color as the chemical structure of the material reversibly changes with temperature change.

When using existing contact lenses, there is no immediate response to sensitive eye changes such as lack of knowledge about proper contact lens usage time or dryness of the eyes, which shortens the life of the contact lenses and also causes dryness and contaminants in the eyes. Many are at risk of infection.

Although most contact lens users come to know the precautions and dangers associated with lens use when purchasing a lens, take action when the eye feels extremely tired rather than taking immediate action when such problems occur. Done. The above problems are overlooked and easily overlooked by the user, but the above problems have been devised to solve the damage since they can cause serious intraocular and trauma such as corneal damage.

In order to solve the above problems, the color of the dye is discolored according to the temperature change of the eye according to the eye fatigue through the addition of the thermosensitive dye material described above to the contact lens to take immediate measures to protect the eye as well as to extend the life of the contact lens. It allows you to.

The above-mentioned claimed invention is characterized by being able to immediately manage the lens due to the color change before the eye feels a dramatic fatigue because it changes color due to the temperature change of the eye. More specifically, most contact lens users, despite having correct lens wearing time and artificial tear administration time, did not take any special measures before feeling extreme tiredness of the eye, causing the disease of the eye. Prevention is possible.

In more detail, the thermochromic dye, which is the main material of the thermosensitive dye 100, is composed of an electron-donating organic compound, an electron-accepting compound, and alcohols, which determine the color, concentration, and discoloration temperature.

Electron-donating organic compounds specifically include 3, 6-dimethoxyfluorine, which determines yellow, 3-cyclohexylamino-6-chlorofluorine, which determines orange color, and 3-diethylaminobenfluorane, which determines orange red color. To determine the red,

Damine B lactone, crystal violet lactone that determines blue color, 3-diethylamino-7-dibenzylaminofluorine that determines green color, 3-diethylamino-6-methylaminofluorine that determines black color, and the like.

As the electron-accepting compound, propyl gallate is used, and alcohols are N-octyl alcohol (-40 ° C), N-dctyl alcohol (-13 ° C) and N-lauryl alcohol (16 ° C) depending on the color change temperature to be selected. ), N-myristyl alcohol (35 ° C.), N-cetyl alcohol (45 ° C.), and N-stearyl alcohol (53 ° C.).

In the state where the electron-donating organic compound, the electron-accepting compound, and alcohol are present, the color is changed according to the thermal equilibrium, and the temperature range for giving the color change can be adjusted to 5 ° C. or more.

The thermosensitive dye (2) is colorless at room temperature (25 ℃ ~ 30 ℃) can not be observed with the naked eye, it will have a color that can be recognized by the naked eye by reacting in a specific temperature range, a number of commonly known techniques have.

When explaining the embodiment of the contact lens 1 of the present invention through the accompanying drawings

Fig. 1 is an external perspective view of the present invention in which the contact lens material (hard, soft, RGP lens) contains the thermal dye 100 to constitute a contact lens. The thermosensitive dye 100 may be applied to a part of the surface of the contact lens 1 or may be attached to both outer surfaces or one surface thereof by a coding method.

The present invention is a contact lens that is discolored according to a predetermined temperature range adjusted at the time of attaching the thermal dye 100 to the contact lens 1, the color of the lens is also discolored according to the sensitive temperature change according to eye fatigue.

One of the biggest projects in the modern society, the Health Being business, is a well-established state of affairs and is one of the most sensitive parts of the body. The present invention, which is a related invention, is also expected to be positively commercialized in accordance with the revival of the health business.

1-contact lens

100-Thermal Dye

Figure 1-External perspective view

Claims (1)

Discoloration contact lens, characterized in that the thermo-dye is configured in a portion of the lens uniformly so that the color changes according to the detailed temperature change according to the eye fatigue

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