CN214954388U

CN214954388U - Ultrathin aspheric high-refractive-index resin lens

Info

Publication number: CN214954388U
Application number: CN202120150531.4U
Authority: CN
Inventors: 崔王斌
Original assignee: Nanjing Koan Electro Optics Co ltd
Current assignee: Nanjing Koan Electro Optics Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-11-30
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses an ultra-thin aspheric surface high refractive index resin lens belongs to lens technical field, including the lens body, the lens body includes internal surface, surface and peripheral surface, has plated first rete on the internal surface, has plated the second rete on the surface, and the peripheral surface is equipped with the spread groove, and the spread groove in-connection has the lag, and the lag is connected with the spread groove buckle or the interference is connected. The utility model arranges a plurality of film layers on the inner surface and the outer surface of the lens, so that the lens is wear-resistant, has good light transmittance and strong functionality; the peripheral surface of the lens body is provided with a connecting groove and a matched protective sleeve, so that the lens body and the coating layer are well protected; through set up the bulge at lag both ends, can form effective protection to the edge of the internal surface of lens and surface and coating film, prevent that the rete from receiving friction and collision at the edge and leading to damaging, the effectual life who improves the lens.

Description

Ultrathin aspheric high-refractive-index resin lens

Technical Field

The utility model belongs to the technical field of the lens, concretely relates to ultra-thin aspheric surface high refractive index resin lens.

Background

The resin lens is made of organic material, and has inside polymer chain structure connected to form stereo netted structure, relaxed intermolecular structure and space for relative displacement. The light transmittance is 84% -90%, the light transmittance is good, and the impact resistance of the optical resin lens is strong.

The surface radian of the aspheric lens is different from that of a common spherical lens, the curved surface of the aspheric lens needs to be changed in order to pursue the lens thinness, and the spherical design is adopted in the past, so that the aberration and the deformation are increased, and consequently, the phenomena of poor image clarity, distortion of the visual field, narrow visual field and the like appear. The existing aspheric surface design corrects images, solves the problems of distorted vision and the like, and simultaneously makes the lens lighter, thinner and flatter. Moreover, the excellent impact resistance is still maintained, making the wearer safe to use. Compared with the traditional spherical lens, the advanced aspheric surface design has the advantages that objects seen at the periphery of the lens are distorted, the visual field of a wearer is limited, and in the era of continuous improvement of science and technology, the edge aberration of the lens is minimized by the aid of the aspheric surface design, so that the wide visual field of the lens can meet the requirements of customers. Presenting a clearer and more comfortable visual effect. Clearer, easier and more natural.

The refractive index of the lens is the ratio of the propagation speed of light in vacuum to the propagation speed of light in the lens material, and reflects the refractive power of the lens to light. Under the same precondition, the higher the refractive index of the lens is, the thinner the lens is, the lighter the lens is, and for the myopic lens, the higher the refractive index of the lens is, the lower the edge thickness of the lens is, under the premise that other parameters are the same.

Present spectacles for myopia are more and more strict in requirements for optical lenses, and requirements for the weight, thickness, anti-falling performance, light transmission, blue light resistance and the like of the lenses are more and more, the surface hardness of the lenses can be improved by coating on the lenses, so that the light transmission, blue light resistance and the like of the lenses are improved, but because the coating layer is on the outer surface of the lenses, the edges of the coating layer are easily damaged by external force or friction and the like, so that the service lives of the lenses are shortened.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: to the above-mentioned problem that exists among the prior art, the utility model aims to solve the technical problem that a good protection can be carried out to the coating film layer to ultra-thin aspheric surface high refractive index resin lens on the body of ultra-thin lens, also can promote the anti performance of falling of lens body is provided.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides an ultra-thin aspheric surface high refractive index resin lens, includes the lens body, the lens body includes internal surface, surface and peripheral surface, first rete has been plated on the internal surface, second rete has been plated on the surface, the peripheral surface is equipped with the spread groove, the spread groove is connected with the lag, the lag is connected with the spread groove buckle or interference.

Furthermore, the number of the connecting grooves is more than one, and the width of the notches of the connecting grooves is smaller than that of the bottoms of the connecting grooves.

Furthermore, one end of the protective sleeve, which is close to the inner surface, is provided with a first protruding part, one end of the protective sleeve, which is close to the outer surface, is provided with a second protruding part, and the first protruding part and the second protruding part protrude towards the lens body.

Furthermore, the inner side of the first protruding part is attached to the first film layer, and the inner side of the second protruding part is attached to the second film layer.

Furthermore, the protective sleeve is made of transparent materials.

Further, the first film layer comprises a hardening film layer, an antireflection film layer and a waterproof film layer which are sequentially arranged.

Furthermore, the second rete is including the shock resistance layer, add hard coating layer, anti blue layer and the waterproof rete that set gradually.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following: 1. the inner surface and the outer surface of the lens are provided with the plurality of film layers, so that the lens is wear-resistant, good in light transmittance and strong in functionality; 2. the peripheral surface of the lens body is provided with a connecting groove and a matched protective sleeve, so that the lens body and the coating layer are well protected; 3. through set up the bulge at lag both ends, can form effective protection to the edge of the internal surface of lens and surface and coating film, prevent that the rete from receiving friction and collision at the edge and leading to damaging, the effectual life who improves the lens.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of a first embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of another embodiment of the present invention.

Detailed Description

The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 and 2, an ultrathin aspheric high refractive index resin lens comprises a lens body 1, the lens body 1 comprises an inner surface 11, an outer surface 12 and a peripheral surface 13, the inner surface 11 is plated with a first film layer 2, the first film layer 2 comprises a hardened film layer, an antireflection film layer and a waterproof film layer which are sequentially arranged, the hardened film layer is made of an organic silicon material, the thickness of the hardened film layer is 3-5 μm, the hardness of the lens can be improved, a certain light transmittance can be increased, better adhesion can be provided for a following additional film, the antireflection film layer is made of high-purity metal oxide materials such as titanium oxide and zirconium oxide, the thickness of the antireflection film layer is 0.3 μm, a good antireflection effect can be achieved, the waterproof film layer is mainly made of fluoride, the thickness of the waterproof film layer is 0.005-0.01 μm, the porous antireflection film layer can be covered, and the contact area between water and oil and the lens can be reduced, making oil and water droplets less likely to adhere to the lens surface. The outer surface 12 is plated with a second film layer 3, the second film layer 3 comprises an impact resistant layer, a hardened film layer, a blue light resistant layer and a waterproof film layer which are sequentially arranged, the impact resistant layer adopts an impact resistant bottom film and plays a role in buffering, the hardened film layer is the same as the hardened film layer of the inner surface 11 in material and effect, the blue light resistant layer is a blue light resistant film and protects eyes from being damaged by harmful blue light, and the waterproof film layer is the same as the inner waterproof film layer of the inner surface 11 in material and effect;

the peripheral surface 13 is provided with two connecting grooves 4 (the number of the connecting grooves 4 can be set to be 1), the width of the groove opening of each connecting groove 4 is smaller than the width of the groove bottom of each connecting groove 4, clamping is convenient to carry out, each connecting groove 4 is connected with a protective sleeve 5, each protective sleeve 5 is made of a transparent silica gel material, each protective sleeve 5 is connected with the corresponding connecting groove 4 in a buckling mode (or can be set to be in interference connection), two clamping blocks matched with the connecting grooves 4 are arranged on each protective sleeve 5 and can be clamped in the corresponding connecting groove 4 through the corresponding clamping block and can slide, the protective sleeves 5 are tightly attached to the corresponding connecting grooves 4 and can be finely adjusted in position, the connecting firmness degree of the protective sleeves 5 and the lens body 1 can be improved through the two connecting grooves 4, one end, close to the inner surface 11, of each protective sleeve 5 is provided with a first protruding portion 51, one end, close to the outer surface 12, of each protective sleeve 5 is provided with a second protruding portion 52, and the first protruding portions 51 and the second protruding portions 52 protrude towards the lens body 1, first bulge 51 is inboard to laminate with first rete 2, and second bulge 52 is inboard to laminate with second rete 3 to form the protection to the first rete 2 of internal surface 11 and the second rete 3 of surface 12, prevent to collide with and rub and form the injury to internal surface 11 and surface 12, form the protection to first rete 2 and second rete 3 simultaneously, prevent that the rete from damaging from the edge.

As shown in fig. 3, the difference from the first embodiment is that the protective sleeve 5 has no protrusions protruding toward the lens body 1 at two ends, the main portion of the protective sleeve 5 is in a parallelogram shape and tightly attached to the peripheral surface 13, and the left and right ends of the protective sleeve 5 protrude beyond the peripheral surface 13 of the lens body 1 and contact with the side surfaces of the first film layer 2 and the second film layer 3 but do not contact with the outer surfaces of the first film layer 2 and the second film layer 3, which simplifies the structure of the protective sleeve 5, and the portion of the protective sleeve 5 protruding beyond the peripheral surface 13 forms a protection for the edges of the first film layer 2 and the second film layer 3.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an ultra-thin aspheric surface high refractive index resin lens, its characterized in that, includes lens body (1), lens body (1) includes internal surface (11), surface (12) and peripheral surface (13), first rete (2) have been plated on internal surface (11), second rete (3) have been plated on surface (12), peripheral surface (13) are equipped with spread groove (4), spread groove (4) are connected with lag (5), lag (5) are connected or interference with spread groove (4) buckle, spread groove (4) quantity is more than one, the notch width of spread groove (4) is less than the tank bottom width of spread groove (4).

2. The ultra-thin aspheric high refractive resin lens according to claim 1, wherein the protective cover (5) has a first protrusion (51) at its end near the inner surface (11), and the protective cover (5) has a second protrusion (52) at its end near the outer surface (12), and the first protrusion (51) and the second protrusion (52) protrude towards the lens body (1).

3. The ultra-thin aspheric high refractive resin lens according to claim 2, characterized in that the inner side of the first convex portion (51) is attached to the first film layer (2), and the inner side of the second convex portion (52) is attached to the second film layer (3).

4. The ultra-thin aspheric high refractive resin lens as claimed in claim 1, characterized in that the material of the protective cover (5) is transparent.

5. The ultra-thin aspheric high refractive index resin lens as claimed in claim 1, wherein the first film layer (2) comprises a hard coating layer, an anti-reflection film layer and a waterproof film layer sequentially disposed.

6. The ultra-thin aspheric high refractive index resin lens as claimed in claim 1, wherein the second film layer (3) comprises an impact resistant layer, a hard coating layer, a blue light resistant layer and a waterproof film layer in this order.