CN215067389U

CN215067389U - Resin prism lens

Info

Publication number: CN215067389U
Application number: CN202120508909.3U
Authority: CN
Inventors: 蒯泽文; 燕兴; 阮高梁; 蔡沛峰
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-12-07
Anticipated expiration: 2031-03-10

Abstract

The utility model provides a resin prism lens. The resin prism lens includes: a prism lens; a plurality of first subset layers; and a plurality of second sub-set layers, the plurality of first sub-set layers and the plurality of second sub-set layers being alternately stacked, the first sub-set layers and the second sub-set layers having different refractive indexes, and the resin prism lens having a minimum reflectance of 92% or more with respect to light having a wavelength in a range of 400nm to 700 nm. The utility model provides an among the prior art many reflection periscopic long burnt camera have the problem that the cost is expensive.

Description

Resin prism lens

Technical Field

The utility model relates to an optical imaging equipment technical field particularly, relates to a resin prism lens.

Background

Along with the development of high-end cell-phone model, the application of many reflection periscopic super long-focus lens on the cell-phone is more and more extensive, and many reflection periscopic long-focus camera makes the cell-phone can increase the focus by a wide margin, remedies interior zooming not enough, reaches professional camera level to periscopic structure can reduce the thickness of cell-phone module by a wide margin, becomes an important direction of smart mobile phone camera development.

In many reflection periscopic long burnt camera passes through the prism and refracts light into cell-phone camera lens module, general prism material all adopts glass material, and its shock resistance is poor, and is breakable, makes the prism phenomenons such as leaky plate appear to the cost is expensive, produces harmful effects to many reflection periscopic long burnt camera performance, increases the technical threshold.

That is to say, the multi-reflection periscopic long-focus camera in the prior art has the problem of high cost.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a resin prism lens to solve the problem that the multi-reflection periscopic long-focus camera in the prior art is expensive.

In order to achieve the above object, according to an aspect of the present invention, there is provided a resin prism lens, including: a prism lens; a plurality of first subset layers; and a plurality of second sub-set layers, the plurality of first sub-set layers and the plurality of second sub-set layers being alternately stacked, the first sub-set layers and the second sub-set layers having different refractive indexes, and the resin prism lens having a minimum reflectance of 92% or more with respect to light having a wavelength in a range of 400nm to 700 nm.

Further, the refractive index of the first subset layer is greater than the refractive index of the second subset layer.

Further, the refractive index of the first sub-collector layer is 2.2 or more and 2.3 or less.

Further, the refractive index of the second sub-collector layer is 1.4 or more and 1.6 or less.

Further, the material of the first sub-cluster layer includes nitride, fluoride, sulfide, selenide, silicon hydride, silicon germanium hydride, SiC, Nb₂O₅、Ta₂O₅And an oxide of Ti.

Further, the material of the second sub-cluster layer comprises SiO₂、Al₂O₃、TiO₂、Nb₂O₅、Ta₂O₅、MgF₂、NbTiO_x、ZrO₂、Y₂O₃、HfO₂、S₃N₄At least one of boron-based material and phosphorus-based material.

Further, the material of the prism lens includes one of EP, APEL, Zeonex, PMMA.

Further, the refractive index of the prism lens is 1.5 or more and 1.7 or less.

Further, a total thickness D of the plurality of first sub-cluster layers_{H assembly}And a total thickness D of the plurality of second sub-collector layers_{L Total}The ratio of (A) to (B) satisfies: 0.50<D_{H assembly}/D_{L Total}<1.50。

Further, the average reflectance of the resin prism lens for light having a wavelength in the range of 400nm to 700nm is 95% or more.

Use the technical scheme of the utility model, resin prism lens includes: the prism lens includes a prism lens, a plurality of first sub-set layers and a plurality of second sub-set layers alternately stacked, refractive indices of the first sub-set layers and the second sub-set layers are different, and a minimum reflectance of the resin prism lens to light having a wavelength in a range of 400nm to 700nm is 92% or more.

Through set up a plurality of first subset layers and the second subset layer of superpose in turn on the prism lens, can form a film system on the surface of prism lens, can ensure that the optical property of prism lens is not influenced, can increase the structural strength of prism lens and the surperficial first subset layer and the second subset layer of prism lens can increase the surface smoothness of prism lens simultaneously, and then can increase the reflectivity of resin prism lens. In addition, the prism lens in the application is a resin prism lens, and the resin prism lens is not fragile and has strong impact resistance relative to a glass lens, and is not easy to generate 'haqi' phenomenon, so that the lens has good safety performance and excellent colorability, and the cost and the weight of the lens are greatly reduced. The minimum reflectivity of the resin prism lens to light with the wavelength ranging from 400nm to 700nm is larger than or equal to 92%, so that the surface reflectivity of the resin prism lens is high, and light can be well reflected out.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a resin prism lens according to an alternative embodiment of the present invention; and

fig. 2 is a schematic view showing a reflectance curve of the resin prism sheet of fig. 1.

Wherein the figures include the following reference numerals:

10. a prism lens; 20. a first subset layer; 30. a second subset layer.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

As shown in fig. 1 to 2, the resin prism sheet includes a prism sheet 10, a plurality of first sub-collection layers 20 and a plurality of second sub-collection layers 30, the plurality of first sub-collection layers 20 and the plurality of second sub-collection layers 30 are alternately stacked, refractive indexes of the first sub-collection layers 20 and the second sub-collection layers 30 are different, and a minimum reflectance of the resin prism sheet to light having a wavelength in a range of 400nm to 700nm is 92% or more.

By arranging the first sub-collection layer 20 and the second sub-collection layer 30 which are alternately overlapped on the prism lens, a film system can be formed on the surface of the prism lens, the optical performance of the prism lens can be ensured not to be affected, the structural strength of the prism lens can be improved, meanwhile, the surface smoothness of the prism lens 10 can be improved through the first sub-collection layer 20 and the second sub-collection layer 30 on the surface of the prism lens, and the reflectivity of the resin prism lens can be further improved. In addition, the prism lens in the application is a resin prism lens, and the resin prism lens is not fragile and has strong impact resistance relative to a glass lens, and is not easy to generate 'haqi' phenomenon, so that the lens has good safety performance and excellent colorability, and the cost and the weight of the lens are greatly reduced. The minimum reflectivity of the resin prism lens to light with the wavelength ranging from 400nm to 700nm is larger than or equal to 92%, so that the surface reflectivity of the resin prism lens is high, and light can be well reflected out.

Specifically, the refractive index of the first sub-set layer 20 is greater than the refractive index of the second sub-set layer 30. The arrangement makes the refractive index of the first sub-collection layer 20 and the refractive index of the second sub-collection layer 30 different, so that the light can be deflected and reflected to different degrees when propagating between the first sub-collection layer 20 and the second sub-collection layer 30, and the reflectivity of the resin prism lens to the light can be greatly increased.

In the present embodiment, the refractive index of the first sub-collector layer 20 is 2.2 or more and 2.3 or less. The arrangement enables the first sub-collecting layer 20 to have a higher refractive index, and light entering the first sub-collecting layer 20 from the light-thinning medium is easier to reflect, so that the surface reflectivity of the resin prism lens is increased.

Specifically, the refractive index of the first sub-collector layer 20 may be 2.2, 2.22, 2.24, 2.25, 2.26, 2.28, 2.3.

In the present embodiment, the refractive index of the second sub-collector layer 30 is 1.4 or more and 1.6 or less. The arrangement makes a certain refractive index difference between the first sub-set layer 20 and the second sub-set layer 30, so that the deflection angle of the light in the second sub-set layer 30 is different from the reflection angle of the light in the first sub-set layer 20, the diversity of the light reflection in the film system is greatly increased, and the light reflection is greatly increased.

Specifically, the material of the first sub-collector layer 20 includes nitride, fluoride, sulfide, selenide, silicon hydride, silicon germanium hydride, SiC, Nb₂O₅、Ta₂O₅And an oxide of Ti. The first sub-collector layer 20 may be made of nitride, fluoride, sulfide, selenide, silicon hydride, silicon germanium hydride, SiC, Nb₂O₅、Ta₂O₅And Ti oxide, but may be a nitride, fluoride, sulfide, selenide, silicon hydride, silicon germanium hydride, SiC, Nb₂O₅、Ta₂O₅And oxides of Ti are mixed together. Here, mixing means physical mixing rather than chemical reaction to form a new substance.

Specifically, the material of the second sub-collector layer 30 includes SiO₂、Al₂O₃、TiO₂、Nb₂O₅、Ta₂O₅、MgF₂、NbTiOx、ZrO₂、Y₂O₃、HfO₂、S₃N₄At least one of boron-based material and phosphorus-based material. The second sub-collector layer 30 may be made of SiO₂、Al₂O₃、TiO₂、Nb₂O₅、Ta₂O₅、MgF₂、NbTiOx、ZrO₂、Y₂O₃、HfO₂、S₃N₄One of boron-based material and phosphorus-based material, or SiO₂、Al₂O₃、TiO₂、Nb₂O₅、Ta₂O₅、MgF₂、NbTiO_x、ZrO₂、Y₂O₃、HfO₂、S₃N₄Boron-based materials, phosphorus-based materials. It should be noted that the mixing here is physical mixing and not chemical reaction to generate new substances.

Specifically, the material of the prism lens 10 includes one of EP, APEL, Zeonex, and PMMA. The prism lens has better safety performance, light weight, difficult fragmentation and excellent colorability, and the cost is greatly reduced and the weight of the mobile phone lens is reduced.

Specifically, the material of the prism lens 10 is EP-8000.

In the present embodiment, the refractive index of the prism lens 10 is 1.5 or more and 1.7 or less. This arrangement allows the refractive index of the prism sheet 10 to be relatively close to the refractive index of both the first and

second sub-collection layers

20 and 30, so that the prism sheet 10 can be connected to the first sub-collection layer 20, and the prism sheet 10 can be better matched to the first and

second sub-collection layers

20 and 30.

Specifically, the total thickness D of the plurality of first sub-collector layers 20_{H assembly}And a total thickness D of the plurality of second sub-collector layers 30_{L Total}The ratio of (A) to (B) satisfies: 0.50<D_{H assembly}/D_{L Total}<1.50. By combining the total thickness D of the first sub-collector layer 20_{H assembly}And the total thickness D of the second sub-collector layer 30_{L Total}Is limited to between 0.5 and 1.5, so that the total thickness of the first sub-collection layer 20 and the total thickness of the second sub-collection layer 30 is small, facilitating the fabrication of the first sub-collection layer 20 and the second sub-collection layer 30.

Specifically, the average reflectance of the resin prism lens for light having a wavelength in the range of 400nm to 700nm is 95% or more. The average reflectivity of the resin prism lens to light with the wavelength within the range of 400nm to 700nm is limited, so that the reflectivity of each position of the resin prism lens can be ensured to be relatively large, and good reflectivity is realized.

A specific example will be described.

In this example, the film system has twenty-six layers, starting from one side of the prism lens 10, the first layer is the first sub-collecting layer 20, the second layer is the second sub-collecting layer 30, the third layer is the first sub-collecting layer 20, and the fourth layer is the third sub-collecting layerThis is repeated thirteen times for the second sub-assembly layer 30 to form a twenty-six layer film system. Wherein the first sub-collector layer 20 is Ti₃O₅The second sub-collector layer 30 is Al₂O₃And SiO₂A mixture of (a). The refractive index in this example is a refractive index at a wavelength of 550nm, and the ratio of the film thicknesses of the twenty-six layer film system is 8: 100: 40: 70: 40: 70: 40: 80: 40: 80: 40: 80: 40: 90: 50: 130: 60: 110: 50: 130: 50: 110: 50: 140: 50: 230 in nm. In this example, the average reflectivity Rave of the resin prism lens in the range of the visible light band 400-700nm is 95% or more, and the minimum reflectivity Rmin of the resin prism lens in the range of the visible light band 400-700nm is 92% or more.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A resin prism lens, comprising:

a prism lens (10);

a plurality of first sub-collector layers (20);

a plurality of second sub-set layers (30), a plurality of the first sub-set layers (20) and a plurality of the second sub-set layers (30) being alternately stacked, the first sub-set layers (20) and the second sub-set layers (30) having different refractive indexes, and the resin prism sheet having a minimum reflectance of light having a wavelength in a range of 400nm to 700nm of 92% or more.

2. The resin prism lens according to claim 1, wherein the refractive index of the first sub-set layer (20) is larger than the refractive index of the second sub-set layer (30).

3. The resin prism lens according to claim 1, wherein the refractive index of the first sub-collector layer (20) is 2.2 or more and 2.3 or less.

4. The resin prism lens according to claim 1, wherein the refractive index of the second sub-collector layer (30) is 1.4 or more and 1.6 or less.

5. The resin prism lens according to claim 1, wherein the material of the first sub-collector layer (20) includes nitride, fluoride, sulfide, selenide, silicon hydride, silicon germanium hydride, SiC, Nb₂O₅、Ta₂O₅And an oxide of Ti.

6. The resin prism lens as claimed in claim 1, wherein the material of the second sub-collective layer (30)Comprising SiO₂、Al₂O₃、TiO₂、Nb₂O₅、Ta₂O₅、MgF₂、NbTiO_x、ZrO₂、Y₂O₃、HfO₂、S₃N₄One of boron-based material and phosphorus-based material.

7. A resin prism lens as claimed in claim 1, wherein the material of the prism lens (10) comprises one of EP, APEL, Zeonex, PMMA.

8. The resin prism lens according to claim 1, wherein the refractive index of the prism lens (10) is 1.5 or more and 1.7 or less.

9. The resin prism lens as claimed in claim 1, wherein the total thickness D of the plurality of first sub-collective layers (20)_{H assembly}And the total thickness D of a plurality of said second sub-collective layers (30)_{L Total}The ratio of (A) to (B) satisfies: 0.50<D_{H assembly}/D_{L Total}<1.50。

10. The resin prism lens according to claim 1, wherein an average reflectance of the resin prism lens for light having a wavelength in a range of 400nm to 700nm is 95% or more.