CN202837690U - Contact lenses - Google Patents

Abstract

The utility model discloses a contact lens, which comprises a left-eye lens and a right-eye lens. The left-eye lens and the right-eye lens are respectively provided with a polarizing crystal, and the polarization directions of the two polarizing crystals are perpendicular to each other. The utility model discloses a contact lens, which is easy to wear, allows the user to watch the picture displayed by the 3D display device conveniently, comfortably and reliably, reduces the fatigue of the user watching the 3D video, and ensures the visual enjoyment of the user watching the 3D picture , help to improve the quality of life of users, expand the market application prospect of glasses, and have great practical significance in production.

Description

a contact lens

technical field

The utility model relates to the technical field of glasses, in particular to a contact lens.

Background technique

In recent years, with the continuous improvement of people's living standards, three-dimensional (3D) display devices have become more and more popular and widely used in people's daily life, and have entered the lives of ordinary people. For example, there have been 3D display mobile phones, 3D display LCD TVs, 3D monitors and other 3D display devices. At the same time, major movie theaters are equipped with 3D projection halls. People can watch more realistic and three-dimensional 3D videos through these 3D display devices. , greatly enhance people's visual enjoyment.

However, so far, for almost all 3D display technologies, in order for users to watch 3D images, users are required to wear 3D glasses corresponding to the 3D display technology to cooperate with the final 3D imaging. If the user wears 3D glasses for a long time, it is easy to cause discomfort, which seriously reduces the user's visual enjoyment of watching 3D images.

Especially for users who originally wear glasses, if they need to watch 3D videos, they need to add a 3D glasses on top of the original glasses, that is, they need to wear another 3D glasses on the outside of the original glasses to watch 3D videos. The weight of each glasses is relatively large, and the 3D glasses are easy to slip off from the glasses originally worn by the user, thus greatly increasing the fatigue of the user watching the 3D video.

Therefore, there is an urgent need to develop a kind of glasses at present, and it is convenient to wear, and allows the user who wears glasses to correct vision while also can conveniently, comfortably and reliably watch the displayed picture of 3D display equipment, reduce the user to watch 3D video frequency. The degree of fatigue is guaranteed to ensure the visual enjoyment of users watching 3D images.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of contact lens, and it is easy to wear, and can allow all users to watch the picture that 3D display device displays conveniently, comfortably, reliably, reduces the fatigue degree of user watching 3D video, guarantees The visual enjoyment of users watching 3D images is beneficial to improving the quality of life of users and expanding the market application prospects of glasses, which has great practical significance in production.

For this reason, the utility model provides a kind of contact lens, comprises left eye lens and right eye lens, and described left eye lens and right eye lens are respectively provided with a polarizing crystal, and the polarization direction of described two polarizing crystals is perpendicular to each other .

Wherein, the left-eye lens includes a left-eye lens base, and a left-eye lens polarizing crystal is arranged on the outer surface of the left-eye lens base;

The right-eye lens includes a right-eye lens base, and a right-eye lens polarizing crystal is arranged on the outer surface of the right-eye lens base;

The polarizing crystal of the left-eye lens and the polarizing crystal of the right-eye lens are respectively two polarizing crystals whose light polarization directions are perpendicular to each other.

Wherein, the polarizing crystal of the left-eye lens and the polarizing crystal of the right-eye lens are polarizing crystals that polarize light in the horizontal direction and polarize light in the vertical direction, respectively.

Wherein, the polarizing crystal of the left-eye lens is arranged at the center of the outer surface of the base of the left-eye lens, and the polarizing crystal of the right-eye lens is arranged at the center of the outer surface of the base of the left-eye lens.

Wherein, the polarizing crystal of the left-eye lens and the polarizing crystal of the right-eye lens are circular polarizing crystals.

Wherein, a left-eye lens identification part is provided on the outer surface of the base of the left-eye lens at a position below the polarizing crystal of the left-eye lens;

A right-eye lens identification part is provided on the outer surface of the base of the right-eye lens at a position below the polarizing crystal of the right-eye lens.

Wherein, the left-eye lens identification part and the right-eye lens identification part have different identification marks respectively.

Wherein, the different identification marks include at least one of different colors, different concave-convex structures and different shapes.

It can be seen from the technical solution provided by the utility model above that compared with the prior art, the contact lens provided by the utility model includes a left eye lens and a right eye lens, and the left eye lens and the right eye lens are respectively provided with There are polarizing crystals whose polarization directions are perpendicular to each other, so that the 3D filtering function can be realized through the principle of linear polarization, and different images can be restored in the left and right eyes of the user to realize the 3D stereoscopic imaging effect. Therefore, the contact lens provided by the utility model is convenient to wear, Not only can all users watch the pictures displayed by 3D display devices conveniently, comfortably and reliably, but also can correct the eyesight of users who originally wear glasses at the same time, reduce the fatigue of users watching 3D videos, and ensure the visual enjoyment of users watching 3D pictures , help improve the quality of life of users, expand the market application prospects of glasses, and have great practical significance in production.

Description of drawings

Fig. 1 is the plan view of a kind of embodiment of the left-eye lens that a kind of contact lens provided by the utility model has;

Fig. 2 is the longitudinal sectional view of the left-eye lens that a kind of contact lens provided by the utility model shown in Fig. 1 has;

Fig. 3 is the plan view of a kind of embodiment of the right eye lens that a kind of contact lens provided by the utility model has;

Fig. 4 is the longitudinal sectional view of the right eye lens that a kind of contact lens provided by the utility model shown in Fig. 3 has;

In the figure, 11 is the base of the left-eye lens, 12 is the polarizing crystal of the left-eye lens, and 13 is the identification part of the left-eye lens;

21 is the base of the right-eye lens, 22 is the polarizing crystal of the right-eye lens, and 23 is an identification part of the right-eye lens.

Detailed ways

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Referring to Fig. 1 to Fig. 4, the utility model provides a contact lens, which is specially used for viewing 3D images displayed by polarized 3D technology, including a pair of spectacle lenses, namely a left lens and a right lens.

Referring to Fig. 1 and Fig. 2, the left-eye lens includes a circular left-eye lens base 11, and the center of the left-eye lens base 11's outer surface (that is, the side surface away from the user's eyeball that needs to be worn) is provided with A circular left-eye lens polarizing crystal 12 , a left-eye lens identifying portion 13 is provided on the outer surface of the left-eye lens base 11 at a position below the left-eye lens polarizing crystal 12 .

3 and 4, the right eye lens includes a circular right eye lens base 21, and a circular right eye lens polarizing crystal 22 is arranged at the center of the outer surface of the right eye lens base 21. A right-eye lens identifying portion 23 is provided on the outer surface of the spectacle lens base 21 at a position below the polarizing crystal 22 of the right-eye lens.

In terms of specific implementation, the polarizing crystal 12 of the left-eye lens can be embedded in the center of the outer surface of the left-eye lens base 11 or directly bonded to the surface of the center of the outer surface of the left-eye lens base 11. Of course, it can also be It is another connection method that can fixedly connect the polarizing crystal 12 of the left-eye lens and the base 11 of the left-eye lens.

Similarly, in specific implementation, the polarizing crystal 22 of the right-eye lens can be embedded in the center of the outer surface of the right-eye lens base 21 or directly bonded to the surface of the center of the outer surface of the right-eye lens base 21, of course , can also be other connection methods that can fixedly connect the polarizing crystal 22 of the right-eye lens and the substrate 21 of the right-eye lens.

For the present utility model, it should be noted that the polarizing crystal 12 of the left-eye lens is not limited to the central part of the outer surface of the left-eye lens base 11, and can also be arranged outside the left-eye lens base 11 according to the needs of users. Other parts on the surface even completely cover the outer surface of the left-eye lens base 11; similarly, the polarizing crystal 22 of the right-eye lens is not limited to being arranged at the center of the outer surface of the right-eye lens base 21, according to user It can also be arranged on other positions on the outer surface of the right-eye lens base 21, or even completely cover the outer surface of the right-eye lens base 21.

In order to clearly understand the technical solution of the utility model, it should be noted that the contact lens provided by the utility model is specially used for watching 3D images displayed by polarized light 3D technology. Polarized 3D technology, English is Polarization 3D, polarized 3D technology uses the principle of "vibration direction" of light to decompose the original image, first divides the image into two groups of vertically polarized light and horizontally polarized light , and then the left and right lenses of the 3D glasses use polarized lenses with different polarization directions, so that the left and right eyes of a person can receive two sets of images, and then synthesize a three-dimensional image through the brain. That is to say, polarized 3D technology filters light through different polarization directions of projected light on the screen, and achieves 3D visual effects on the human eye. The polarized light is projected, and the eyes worn by the viewer are made of linear polarized crystals. The linear polarization directions of the crystals on the left and right glasses lenses are perpendicular to each other, and the polarization directions of the left and right glasses lenses are respectively consistent with the polarization angle of the light emitted by the projector. In this way, Through the principle of linear polarization, different images can be restored in the left and right eyes respectively to achieve a 3D stereoscopic imaging effect.

Therefore, based on the picture display principle of the above-mentioned polarized light type 3D technology, in the utility model, the polarizing crystal 12 of the left-eye lens and the polarizing crystal 22 of the right-eye lens can be two polarizing crystals whose light polarization directions are perpendicular to each other, specifically They are polarizing crystals that polarize light in the horizontal direction and polarize light in the vertical direction. For example, in terms of specific implementation, the polarizing crystal 12 of the left-eye lens is a polarizing crystal that polarizes in the horizontal direction (that is, the X direction), and at this time the polarizing crystal 22 in the right-eye lens is a polarizing crystal that polarizes in the vertical direction (that is, the Y direction); And when the polarizing crystal 12 of the left lens is a polarizing crystal that polarizes in the vertical direction (ie, the Y direction), the polarizing crystal 22 in the right lens is a polarizing crystal that polarizes in the horizontal direction (ie, the X direction). Therefore, in view of the polarizing crystal 12 of the left-eye lens and the polarizing crystal 22 of the right-eye lens provided on the contact lens provided by the utility model are polarizing crystals that are polarized in the horizontal direction and polarized in the vertical direction respectively, so that 3D can be realized through the principle of linear polarization. The light filtering function restores different pictures in the left and right eyes of the user, and realizes the 3D stereoscopic imaging effect. Therefore, the contact lens provided by the utility model becomes a convenient and reliable 3D contact lens.

In addition, for the contact lens provided by the utility model, in order to facilitate the user to distinguish the left and right lenses and distinguish the wearing direction of the lenses at the same time, the left-eye lens base 11 and the right-eye lens base 21 are respectively provided with a left-eye lens identification part 13 and a The right-eye lens identification part 23, the left-eye lens identification part 13 and the right-eye lens identification part 23 have different identification marks, so as to realize the distinguishing and filtering function of the 3D contact lens. For example, the left-eye lens identification part 13 and the right-eye lens identification part 23 have different colors respectively (for example, the left-eye lens identification part 13 is red, and the right-eye lens identification part 23 is blue); or the left-eye lens The recognition part 13 and the right-eye lens recognition part 23 respectively have different concave-convex structures (for example, the left-eye lens recognition part 13 is a fine protrusion, while the right-eye lens recognition part 23 is a fine groove); or The left-eye lens identification unit 13 and the right-eye lens identification unit 23 have different shapes (for example, the left-eye lens identification unit 13 is a square, and the right-eye lens identification unit 23 is a rectangle).

Specifically, for the contact lens provided by the present invention, the left-eye lens base 11 and the right-eye lens base 21 can be made of a polymer material, and the polymer material can include silicone hydrogel and hydrated polymers (methyl methacrylate, hydroxyethyl methacrylate and glycerol methacrylate, etc.), the left eye lens base 11 and the right eye lens base 21 can be molded, centrifugal casting or turning and other contact lens production methods for production.

For the contact lens provided by the utility model, for the polarizing crystal 12 of the left eye lens and the polarizing crystal 22 of the right eye lens, the mosaic process of these two kinds of polarizing crystals can be mainly divided into two types: one is the bonding method, which adopts transparent The colloid is evenly filled between the polarizing crystal and the glasses base. The second is the insert-type injection molding method. In this method, the polarizing crystal can be placed in the mold first, and then injected, molded, etc. to complete the molding of the contact lens. After the polarizing crystal mosaic is completed, the contact lens production is completed after the direction marking is completed on the upper or lower edge of the contact lens through printing, dyeing and other processes.

In summary, compared with the prior art, the utility model provides a kind of contact lens, which includes a left-eye lens and a right-eye lens, and the left-eye lens and the right-eye lens are respectively provided with polarized lenses whose polarization directions are perpendicular to each other. Polarizing crystals, so that the 3D filtering function can be realized through the principle of linear polarization, and different images can be restored in the left and right eyes of the user to achieve a 3D stereoscopic imaging effect. , Comfortably and reliably watch the picture displayed by the 3D display device. It can also correct the eyesight of the user who originally wore glasses at the same time, reduce the fatigue of the user watching the 3D video, ensure the visual enjoyment of the user watching the 3D picture, and help improve the user's eyesight. Improve the quality of life and expand the market application prospect of glasses, which has great practical significance in production.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. contact lenses is characterized in that, include left eyeglass lens and right eye eyeglass, are respectively arranged with a polarisation crystal on described left eyeglass lens and the right eye eyeglass, and the polarization direction of described two polarisation crystal is mutually vertical.

2. contact lenses as claimed in claim 1 is characterized in that, described left eyeglass lens includes left eyeglass lens substrate (11), and described left eyeglass lens substrate (11) outside surface is provided with a left eyeglass lens polarisation crystal (12);

Described right eye eyeglass includes right eye lens substrate (21), and described right eye lens substrate (21) outside surface is provided with a right eye eyeglass polarisation crystal (22);

Described left eyeglass lens polarisation crystal (12) and right eye eyeglass polarisation crystal (22) are respectively orthogonal two the polarisation crystal of polarization of light direction.

3. contact lenses as claimed in claim 2 is characterized in that, described left eyeglass lens polarisation crystal (12) and right eye eyeglass polarisation crystal (22) are respectively along continuous straight runs polarisation and the polarisation crystal of polarisation vertically.

4. contact lenses as claimed in claim 2, it is characterized in that, described left eyeglass lens polarisation crystal (12) is arranged at described left eyeglass lens substrate (11) outside surface centre, and described right eye eyeglass polarisation crystal (22) is arranged at described left eyeglass lens substrate (11) outside surface centre.

5. such as each described contact lenses in the claim 2 to 4, it is characterized in that, described left eyeglass lens polarisation crystal (12) and right eye eyeglass polarisation crystal (22) are circular polarisation crystal.

6. such as each described contact lenses in the claim 2 to 4, it is characterized in that, described left eyeglass lens substrate (11) outside surface is provided with a left eyeglass lens identification part (13) in the position that is positioned at described left eyeglass lens polarisation crystal (12) below;

Described right eye lens substrate (21) outside surface is provided with a right eye eyeglass identification part (23) in the position that is positioned at described right eye eyeglass polarisation crystal (22) below.

7. contact lenses as claimed in claim 6 is characterized in that, described left eyeglass lens identification part (13) has respectively different identification markings with right eye eyeglass identification part (23).

8. contact lenses as claimed in claim 7 is characterized in that, described different identification marking comprises at least a in different colors, different concaveconvex structure and the different shape.

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