Film type lens

Abstract

The utility model relates to a thin film type lens, which comprises an optical lens and an optical thin film, and the optical thin film can be adhered to the optical lens. The optical thin film comprises a thin film layer, a substrate layer and an adhesion coating, the thin film layer is arranged on one side of the substrate layer, an optical design curved surface is formed on the surface of the thin film layer, and the adhesion coating is arranged on the other side of the substrate layer. The side face, away from the substrate layer, of the adhesive coating is attached to the side face, away from the eyeballs, of the optical lens. According to the film type lens, the optical films with different optical designs are attached to the optical lens, so that the functional diversity of the lens is realized, and the convenience of use and replacement is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lens, in particular to a film type lens. BACKGROUND

[0002] The existing traditional lens production technology has high threshold, high production equipment cost and long production cycle. The traditional hard refractive correction lens needs to be produced and processed according to the prescription of different users, and the waiting time is long, and the cost is high. Therefore, the film adhering type lens is developed, so that the user can quickly experience different products and optical design in the store terminal, and then determine the final purchase demand. The contact lenses also have the above problems, and the comfort is not good, and it is also difficult to care. UTILITY MODEL CONTENT

[0003] Therefore, the utility model aims at overcoming the defects and deficiencies of the prior art, and provides a film type lens.

[0004] The utility model provides a film type lens, which comprises:

[0005] An optical film is detachably attached to the optical lens.

[0006] The optical film comprises a film layer, a substrate layer and an adhesive coating, the film layer is arranged on one side of the substrate layer, the film layer surface forms an optical design curved surface, the adhesive coating is arranged on the other side of the substrate layer, and the side of the adhesive coating away from the substrate layer is attached to the side of the optical lens away from the eyeball.

[0007] Further, the optical design curved surface is a single focus curved surface or a multi-focus curved surface or a gradually changing degree curved surface.

[0008] Further, the thickness of the optical film is 0.2-1.5mm.

[0009] Further, the adhesive coating is made of adhesive material.

[0010] Compared with the prior art, the film type lens has the following advantages:

[0011] 1. The film type lens of the utility model is attached to the optical lens through the optical film with different optical design, realizes the quick experience and switching of the lens function diversity, shortens the production cycle and cost of the traditional hard resin lens, can be used or experienced immediately, and improves the use convenience.

[0012] 2. The optical film of the thin film lens is composed of three layers, is simple and compact in structure, can be directly adhered to the surface of a traditional lens, is convenient to replace, reduces manufacturing cost and is easy to mass produce.

[0013] 3. The thin film lens has high light transmittance, different prescription specifications and parameters of the film can be conveniently and quickly switched for experience, does not need additional production and manufacturing cost and time, and meets different user needs of terminals such as stores. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a structure lateral view of the thin film lens of the utility model;

[0015] Fig. 2 is a sectional view of the optical film of the utility model;

[0016] In the figure: 10, optical lens; 20, optical film; 21, film layer; 22, substrate layer; 23, adhesive coating. DETAILED DESCRIPTION

[0017] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0018] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or a middle element can exist at the same time.

[0020] In view of the technical problems in the background art, the utility model embodiment provides a thin film lens, such as Figs. 1-2As shown, in one embodiment, the thin film lens includes an optical lens 10 and an optical film 20 which is detachably attached to the optical lens 10. Specifically, the optical film 20 includes a film layer 21, a substrate layer 22 and an adhesive coating 23, the film layer 21 is arranged on one side of the substrate layer 22, and the adhesive coating 23 is arranged on the other side of the substrate layer 22, the adhesive coating 23 is attached to the side of the optical lens 10 away from the eyeball of the user, the surface of the film layer 21 is formed with an optical design curved surface, the film layer 21 is an optical design layer, and the optical parameters thereof are formed by different surface curvature designs, thicknesses, material refractive indexes and the like to meet the target design optical requirements and optical performance equivalent to the current conventional resin lens.

[0021] In one embodiment, the optical design curved surface of the optical film 20 can be a single-focus curved surface, or a multi-focus curved surface, or a gradually changing power curved surface. According to different requirements, the optical film 20 with different optical designs can be mass-produced and replaced as required.

[0022] In one embodiment, the thickness of the optical film 20 is specifically selected from the range of 0.2-1.5mm, which reduces the technical threshold and production cycle of the original traditional lens production technology, reduces the manufacturing cost, and facilitates mass application. In other embodiments, the thickness of the optical film 20 can also be selected from other numerical ranges, and is not limited to the above range.

[0023] In one embodiment, the adhesive coating 23 of the optical film 20 is made of an adhesive material, such as a specially developed adhesive material, which can be directly attached to the surface of the ordinary optical lens 10 and can be repeatedly attached and separated, and is easy to operate.

[0024] Compared with the prior art, the thin film lens has the following advantages:

[0025] 1. The thin film lens of the embodiment of the present application can realize the quick experience and switching of the lens function diversity by attaching the optical film with different optical designs to the optical lens, shorten the production cycle and cost of the traditional hard resin lens, and can be used or experienced immediately, thereby improving the use convenience.

[0026] 2. The optical film of the thin film lens of the embodiment of the present application is composed of a three-layer structure, has a simple and compact structure, can be directly attached to the surface of the traditional lens, is convenient to replace, reduces the manufacturing cost and is easy to mass-produce.

[0027] 3. The thin film lens of the embodiment of the present application has high light transmittance, different prescription powers or optical designs are made on the film, and are made into inventory products to facilitate immediate wearing and use or experience, and meet different user requirements.

[0028] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A thin film lens, characterized by, Comprising: An optical film is detachably attached to an optical lens; The optical film comprises a film layer, a substrate layer and an adhesive coating, the film layer is arranged on one side of the substrate layer, the surface of the film layer is formed with an optical design curve, the adhesive coating is arranged on the other side of the substrate layer, and the side of the adhesive coating away from the substrate layer is attached to the side of the optical lens away from the eyeball.

2. The film lens according to claim 1, wherein: The optical design curve is a single-focus curve or a multi-focus curve or a gradient-power curve.

3. The film lens according to claim 1, wherein: The thickness of the optical film is 0.2-1.5mm.

4. The film lens according to claim 1, wherein: The adhesive coating is made of an adhesive material.

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