CN205318041U - Colored contact lens - Google Patents

Abstract

The utility model provides a colored contact lens, including the lens body of utensil surface and internal surface, the lens body comprises central optics district and marginal zone, and wherein the surface of marginal zone department has the printing ink layer that can change wearer's iris outward appearance, and the surface of the printing ink layer infiltration lens body and form smooth surface texture, and the central optics that the lens was personally experienced sth. Part of the body is distinguished thickness and is 0.22mm between 0.04 -0.15mm, marginal zone thickness.

Description

A kind of colored contact lenses

Technical field

This utility model is related to a kind of colored contact lenses, espespecially a kind of by retroussage to contact lens outer surface, thereby changes the contact lens of wearer's appearance of iris.

Background technology

Contact lens has been widely used for the rectification of vision at present, and along with the progress of recessive glasse manufacturing technology, also begins to the contact lens of design difformity or color, functional and then meet the demand that different society is popular to improve it.

And colorful contact lens is except can correcting defects of vision, it is possible to allow iridallochrosis or expand iris shape, eyes are allowed to seem more beautiful deep, also therefore deeply by the favor of female consumer.

The preparation technology of colorful contact lens of the prior art has the mode of retroussage and Multilayer stack, but retroussage can allow ink layer be exposed to the surface of eyeglass, as shown in Figure 1, the ink layer 81 of the surface tool projection of lens body 82, thus when wearing or blink, easily allow ink layer come off because of the friction of external force contact, and the ink layer of projection can allow contact lens surface out-of-flatness, the surface of rough cunning also easily allow the eyes of wearer produce foreign body sensation.

And the colorful contact lens of Multilayer stack formula, as shown in Figure 2, ink layer 91 is held between lens body 92,93 by system, ink layer 91 will not be come off because of friction, there will not be the rough problem of rough surface, but multiple structure causes the increase of thickness, it is possible to cause the deficiency of oxygen permeability, and affect its comfortableness worn, and multiple structure also can improve the cost of its making.

In view of this, how to make surfacing and do not increase the colorful contact lens of its thickness, being intended to the technical task solved for this utility model.

Utility model content

In order to solve the problem described in prior art, main purpose of the present utility model is in that the colorful contact lens providing user to wear, to modify iris color, form and dimension, eyes are made to present effect that is bright, deep and that amplify, and the ink pigment of colorful contact lens can't cause the increase of contact lens thicknesses or the out-of-flatness on surface, colorful contact lens is more comfortable and safety to allow user wear.

For reaching above-mentioned purpose, this utility model provides a kind of colored contact lenses, it is characterized in that including lens body, lens body has outer surface and inner surface, lens body is made up of central optical zone and marginal zone, and wherein the outer surface of marginal zone has ink layer, and ink layer penetrates into outer surface and forms even curface structure, central optical zone thickness is between 0.04-0.15mm, and marginal zone thickness is 0.22mm.

The constituent of ink layer includes: toner, poly hydroxy ethyl acrylate, methacrylic acid and polyvinylpyrrolidone.

Ink layer includes one or more geometrical pattern.

Central optical zone diameter is between 5-10mm.

Central optical zone thickness is between 0.06-0.1mm.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the colored contact lenses using tradition bat printing technology in prior art;

Fig. 2 is the schematic diagram of the colored contact lenses of multiple structure in prior art;

Fig. 3 is the schematic diagram of mould on this utility model, lower membrane structure and retroussage;

Fig. 4 is the schematic diagram that mould on this utility model, lower membrane structure and glue are filled;

Fig. 5 is the schematic diagram of the above mould of this utility model, lower die structure compacting contact lens;

Fig. 6 is the top view A and side view B of this utility model contact lens.

Detailed description of the invention

Refer to Fig. 3, for the schematic diagram of mould, lower membrane structure and retroussage on this utility model. As it is shown on figure 3, this utility model includes mold 71 and the lower mold 72 be made up of plastic material (polypropylene, Polypropylene) for the equipment making colored contact lenses, wherein, mold 71 includes bottom mould 73 and upper mould sidewall 75; And lower mold 72 includes bottom counterdie 74 and counterdie sidewall 76, after mold 71 and lower mold 72 engage, upper mould sidewall 75 and counterdie sidewall 76 mutually support and can bottom upper mould 73 and counterdie bottom form the gap of definite shape between 74, for instance: such as the parabolic surface shape of contact lens external form. First, by the upper surface of 74 bottom ink layer 21 bat printing of circular hollow or arbitrary shape to counterdie in lower mold 72; Wherein, the constituent of this ink layer 21 is except toner, also include: poly hydroxy ethyl acrylate (HEMA), methacrylic acid (MAA) and polyvinylpyrrolidone (PVP), by the characteristic of these constituents, make ink layer 21 can penetrate in the lens body containing glue.

Then, Fig. 4 is referred to, for the schematic diagram that mould, lower membrane structure and glue on this utility model are filled. As shown in Figure 4, adding glue implant 10 in lower mold 72, glue implant 10 also can cover the ink layer 21 of bat printing simultaneously.

Subsequently, refer to Fig. 5, for the schematic diagram of the above mould of this utility model, lower die structure compacting contact lens. As shown in Figure 5, mold 71 is pressed in lower mold 72, by bottom the upper mould of mold 71 73 and lower mold 72 counterdie bottom the gap compacting glue implant 10 that formed between 74 carry out the step solidified, ink layer 21 also penetrates in the glue implant of solidification simultaneously, form it into colored contact lenses, and the glue implant 10 after press curing is shown in Fig. 6 includes the lens body 1 of ink layer 21.

Refer again to Fig. 6, for the top view A and side view B of this utility model contact lens. As shown in Figure 6, produced colored contact lenses has lens body 1, A represents the top view of lens body 1, B represents the side view of lens body 1, lens body 1 has outer surface 13 and inner surface 14, lens body 1 is made up of central optical zone 11 and marginal zone 12, outer surface 13 in marginal zone 12 place has ink layer 21, characteristic due to ink layer 21 constituent, make ink layer 21 can penetrate in the lens body 1 being made up of glue, therefore its outer surface 13 is still even curface structure, and without the structure of any projection.

Wherein, the central optical zone 11 of lens body 1, its diameter D1 is between 5-10mm, and in a better embodiment, the diameter D1 of central optical zone 11 is between 6.5-9mm.

Additionally, the thickness of described central optical zone 11 is between 0.04-0.15mm, in another better embodiment, central optical zone thickness is between 0.06-0.1mm. Described marginal zone thickness is 0.22mm.

In this utility model, the ink layer 21 of bat printing according to consumer demand, can make the geometric figure of various different size, different colours, and color can be: blue, light blue, turquoise, bluish violet, Lycoperdon polymorphum Vitt, brown, yellow or green; Shape can be: snakelike, spiral type, asterism shape, radiation stripe-shaped, spike shape, zigzag or texture shape, additionally, also by collocation mutual to different colours and shape, and can reach colorful iridallochrosis effect.

Compared to prior art, this utility model provides the colored contact lenses of a kind of surfacing, and preparation technology is simple and easy and does not increase the thickness of contact lens; Therefore, the creation of this utility model actually great industrial value.

Claims (4)

1. a colored contact lenses, it is characterized in that including lens body, described lens body has outer surface and inner surface, described lens body is made up of central optical zone and marginal zone, the described outer surface of wherein said marginal zone has ink layer and described ink layer penetrates into described outer surface and forms even curface structure, described central optical zone thickness is between 0.04-0.15mm, and described marginal zone thickness is 0.22mm.

2. colored contact lenses as claimed in claim 1, it is characterised in that described ink layer includes one or more geometrical pattern.

3. colored contact lenses as claimed in claim 1, it is characterised in that described central optical zone diameter is between 5-10mm.

4. colored contact lenses as claimed in claim 1, it is characterised in that described central optical zone thickness is between 0.06-0.1mm.