CN212933034U - Light splitting film and lens - Google Patents
Light splitting film and lens Download PDFInfo
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- CN212933034U CN212933034U CN202022057853.2U CN202022057853U CN212933034U CN 212933034 U CN212933034 U CN 212933034U CN 202022057853 U CN202022057853 U CN 202022057853U CN 212933034 U CN212933034 U CN 212933034U
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Abstract
The utility model provides a light splitting membrane and lens. The working waveband of the light splitting film is larger than or equal to 400 nanometers and smaller than or equal to 780 nanometers, the incident angle of the light splitting film is larger than or equal to 0 degrees and smaller than or equal to 50 degrees, the light splitting film comprises a hardening film layer, a light splitting film layer and a waterproof layer which are sequentially overlapped, the light splitting film layer comprises a plurality of high-refractive-index film layers and a plurality of low-refractive-index film layers, the high-refractive-index film layers and the low-refractive-index film layers are alternately stacked, the waterproof layer is connected with the low-refractive-index film. The utility model provides a 3D lens among the prior art have the poor problem of result of use.
Description
Technical Field
The utility model relates to an optical imaging equipment technical field particularly, relates to a membrane and lens divide light.
Background
With the rapid development of optical technology, the actual requirements of products and processes for coating films on glass substrates cannot be met, and the conversion of the substrates is singly considered, so that the application range of the products is limited due to the selection of materials and the arrangement of characteristics. The general process also causes the appearance, service life and environment of the lens product to be limited.
At present, the projection amount of the lens to light rays is different due to different incident angles, and due to the selection of materials, the construction of a film stack and the design of thickness of the lens during film coating, the matching ratio of the colors presented outside is different, so that the picture effect seen by a user is different. When light is obliquely incident to the optical film, because the tangential components of the electric field and the magnetic field on each interface are continuous, the effective refractive indexes of the S component and the P component are different, the film inevitably generates a polarization effect, the required performances of the lenses in different fields are greatly different, the requirements of the lenses in the same field on the light splitting characteristic are rapidly improved, and the traditional design cannot meet the requirements of users. The traditional product adopting glass as a substrate and without a substrate surface treatment mode can not bring virtual and real more effects to users, and the defect of poor appearance of the product brought by later use can not meet the requirements of customers, so that the establishment of a more practical film system and a preparation method are needed by the situation, and the effect of a 3D lens is needed to be more extreme and visual.
That is, the 3D lens in the related art has a problem of poor use effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a membrane and lens of dividing light to there is the poor problem of result of use in the 3D lens of solving among the prior art.
In order to realize the above-mentioned purpose, according to the utility model discloses an aspect provides a beam splitting film, the operating band more than or equal to 400 nanometers and the 780 nanometers of beam splitting film, the incident angle more than or equal to 0 and less than or equal to 50 of beam splitting film, the beam splitting film is including the stiffened rete of superpose in order, beam splitting rete and waterproof layer, the beam splitting rete includes a plurality of high refractive index retes and a plurality of low refractive index retes, and high refractive index rete piles up with low refractive index rete in turn, the waterproof layer is connected with low refractive index rete, stiffened rete and high refractive index rete are connected.
Furthermore, the refractive index of the high refractive index film layer is greater than or equal to 2.0 and less than or equal to 2.4, and the refractive index of the low refractive index film layer is greater than or equal to 1.4 and less than or equal to 1.5.
Further, the refractive index of the hard coat layer is 1.4 or more and 1.5 or less.
Further, the material of the hard coating layer is organic silicon.
Further, the number of high refractive index film layers is greater than 1.
Further, the number of the high-refractive-index film layers is 5, the number of the low-refractive-index film layers is 5, the first film layer is connected with the hard coating film layer, the first film layer is a high-refractive-index film layer, and the thickness of the first film layer is more than or equal to 8 nanometers and less than or equal to 15 nanometers; the second film layer is connected with the surface of one side, far away from the hard coating layer, of the first film layer, the second film layer is a low-refractive-index film layer, and the thickness of the second film layer is greater than or equal to 70 nanometers and smaller than or equal to 90 nanometers; the third film layer is connected with the surface of one side, far away from the first film layer, of the second film layer, the third film layer is a high-refractive-index film layer, and the thickness of the third film layer is more than or equal to 15 nanometers and less than or equal to 35 nanometers; the fourth film layer is connected with the surface of one side, far away from the second film layer, of the third film layer, the fourth film layer is a low-refractive-index film layer, and the thickness of the fourth film layer is greater than or equal to 60 nanometers and smaller than or equal to 90 nanometers; the fifth film layer is connected with the surface of one side, far away from the third film layer, of the fourth film layer, the fifth film layer is a high-refractive-index film layer, and the thickness of the fifth film layer is greater than or equal to 45 nanometers and less than or equal to 55 nanometers; the sixth film layer is connected with the surface of one side, far away from the fourth film layer, of the fifth film layer, the sixth film layer is a low-refractive-index film layer, and the thickness of the sixth film layer is greater than or equal to 75 nanometers and smaller than or equal to 90 nanometers; the seventh film layer is connected with the surface of one side, far away from the fifth film layer, of the sixth film layer, the seventh film layer is a high-refractive-index film layer, and the thickness of the seventh film layer is more than or equal to 40 nanometers and less than or equal to 60 nanometers; the eighth film layer is connected with the surface of one side, far away from the sixth film layer, of the seventh film layer, the eighth film layer is a low-refractive-index film layer, and the thickness of the eighth film layer is greater than or equal to 90 nanometers and less than or equal to 105 nanometers; the ninth film layer is connected with the surface of one side, far away from the seventh film layer, of the eighth film layer, the ninth film layer is a high-refractive-index film layer, and the thickness of the ninth film layer is greater than or equal to 45 nanometers and less than or equal to 65 nanometers; the tenth rete, the tenth rete is connected with the surface of one side that the eighth rete was kept away from to the ninth rete, and the tenth rete is low refracting index rete, and the thickness of tenth rete is more than or equal to 45 nanometers and less than or equal to 65 nanometers.
Further, the material of the high-refractive-index film layer is TiO2(ii) a And/or the low refractive index film layer is made of SiO2。
Further, the incident angle is 0 °, and the inverse transmittance ratio of the spectroscopic film is 1: 1.
Further, the reflectivity Rp of the P-polarized light generated by the light splitting film and the reflectivity Rs of the S-polarized light generated by the light splitting film have an incident angle of 20 degrees, and the reflectivity Rp and the reflectivity Rs satisfy the following condition: l Rs-Rp l < 10; the incident angle is 40 degrees, and the reflectivity Rp and the reflectivity Rs satisfy the following conditions: | Rs-Rp | < 30.
According to another aspect of the present invention, there is provided a lens, including: the light splitting film is arranged on the substrate, and the hardened film layer of the light splitting film is connected with the substrate.
Use the technical scheme of the utility model, the operating band more than or equal to 400 nanometers and the less than or equal to 780 nanometers of beam splitting membrane, the incident angle more than or equal to 0 and the less than or equal to 50 of beam splitting membrane, beam splitting membrane is including the stiffened rete of superpose in order, beam splitting rete and waterproof layer, beam splitting rete includes a plurality of high refractive index retes and a plurality of low refracting index retes, and high refractive index rete piles up with low refracting index rete in turn, the waterproof layer is connected with low refracting index rete, stiffened rete and high refracting index rete.
The working waveband of the light splitting film is limited within the range from 400 nanometers to 780 nanometers, so that the light splitting film can receive visible light which is emitted into the light splitting film at different angles, and then the visible light which is emitted into the light splitting film can be mostly emitted into human eyes to be used for displaying images, the integrity of imaging is ensured, and the use effect of a user is ensured because the human eyes are sensitive to the light of the working waveband within the range from 400 nanometers to 780 nanometers. If the incident angle of the light splitting film is larger than 50 degrees, the polarization effect generated when the light enters the light splitting film is increased, and the imaging quality is affected. The incident angle of the light splitting film is limited within the range of 0-50 degrees, and the definition and the accuracy of imaging are guaranteed. Through setting up the stiffened film layer for the stiffened film layer has played the effect of bearing and protecting to the beam splitting film layer, avoids the beam splitting film layer to receive the exogenic action to produce deformation, has guaranteed the structural strength of beam splitting film layer, and the stiffened film layer is connected with high refractive index rete simultaneously, can effectively avoid the risk that stiffened film layer and beam splitting film layer break away from, has guaranteed the closeness of being connected of stiffened film layer and beam splitting film layer, and then has guaranteed the assembly stability of beam splitting film.
Because the low refracting index rete has great water droplet contact angle and less surface energy, make water stain or spot adhesive force on low refracting index rete surface big, cause the beam splitting rete to pollute easily, be connected with low refracting index rete through setting up the waterproof layer, make water stain or spot adhesive force on the waterproof layer surface reduce greatly, can effectively avoid beam splitting membrane surface friction and pollution, make the beam splitting membrane have good antifriction and waterproof nature, and then the life of beam splitting membrane has been prolonged, be favorable to the durability and the environmental suitability of beam splitting membrane. The light splitting film layer comprises a plurality of high-refractive-index film layers and a plurality of low-refractive-index film layers, the high-refractive-index film layers and the low-refractive-index film layers are alternately stacked, so that large refractive index difference exists between the high-refractive-index film layers and the low-refractive-index film layers, the range of reflectivity of the light splitting film layers meets adjustability, and then the visible light is enabled to be different in strength of different working wave bands, so that image information received by human eyes is different, the polarization characteristic of the lens can be effectively improved, and the definition and the third dimension of imaging are greatly improved.
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:
figure 1 shows a schematic structural view of an alternative embodiment of the lens of the invention; and
FIG. 2 shows a spectral diagram of a lens with an incident angle of 0 °;
FIG. 3 shows a spectral diagram of a lens with an incident angle of 20 °;
fig. 4 shows a spectral diagram of a lens with an angle of incidence of 40 °.
Wherein the figures include the following reference numerals:
10. a light splitting film; 11. a waterproof layer; 12. a light splitting film layer; 121. a first film layer; 122. a second film layer; 123. a third film layer; 124. a fourth film layer; 125. a fifth film layer; 126. a sixth film layer; 127. a seventh film layer; 128. an eighth membrane layer; 129. a ninth film layer; 1210. a tenth film layer; 13. adding a hard film layer; 20. a substrate.
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.
In order to solve the problem that there is the result of use difference in the 3D lens among the prior art, the utility model provides a membrane and lens divide light.
As shown in fig. 1 to 4, the operating wavelength band of the light splitting film 10 is greater than or equal to 400 nm and less than or equal to 780 nm, the incident angle of the light splitting film 10 is greater than or equal to 0 ° and less than or equal to 50 °, the light splitting film 10 includes a hardened film layer 13, a light splitting film layer 12 and a waterproof layer 11 which are sequentially stacked, the light splitting film layer 12 includes a plurality of high refractive index film layers and a plurality of low refractive index film layers, the high refractive index film layers and the low refractive index film layers are alternately stacked, the waterproof layer 11 is connected with the low refractive index film layers, and the hardened film layer 13.
The working waveband of the light splitting film 10 is limited within the range from 400 nanometers to 780 nanometers, so that the light splitting film 10 can receive visible light which is emitted into the light splitting film 10 at different angles, most of the visible light which is emitted into the light splitting film 10 can be emitted into human eyes for displaying images, the integrity of imaging is guaranteed, and the human eyes are more sensitive to the light of the working waveband within the range from 400 nanometers to 780 nanometers, so that a user can see clearer images. If the incident angle of the light splitting film 10 is greater than 50 °, the polarization effect generated when the light enters the light splitting film 10 is increased, and the imaging quality is affected. The incident angle of the light splitting film 10 is limited within the range of 0-50 degrees, and the definition and the accuracy of imaging are guaranteed. Through setting up stiffened film layer 13 for stiffened film layer 13 has played the effect of bearing and protecting to beam splitting rete 12, avoids beam splitting rete 12 to receive the exogenic action to produce deformation, has guaranteed beam splitting rete 12's structural strength, and stiffened film layer 13 is connected with the high refractive index rete simultaneously, and the light of being convenient for transmits in stiffened film layer 13 from beam splitting rete 12. Set up like this and also can effectively avoid the risk that stiffened film layer 13 and beam split rete 12 break away from, guaranteed the compactness of being connected between stiffened film layer 13 and the beam split rete 12, and then guaranteed the stability of beam split membrane 10 assembly to and increased the life of beam split membrane 10.
Because the low refracting index rete has great water droplet contact angle and less surface energy, make water stain or spot adhesive force on low refracting index rete surface bigger, cause beam splitting rete 12 to pollute easily, be connected with low refracting index rete through setting up waterproof layer 11, make water stain or spot adhesive force on waterproof layer 11 surface reduce greatly, can effectively avoid beam splitting membrane 10 skin friction and pollution, make beam splitting membrane 10 have good antifriction and waterproof nature, and then the life of beam splitting membrane 10 has been prolonged, be favorable to beam splitting membrane 10's durability and environmental suitability. Spectral film 12 includes a plurality of high refractive index retes and a plurality of low refractive index retes, and high refractive index rete piles up with low refractive index rete in turn, it makes to have great refractive index difference between high refractive index rete and the low refractive index rete to set up like this, the transmission of the light of being convenient for on spectral film 12, the scope that makes the reflectivity of spectral film 12 simultaneously satisfies the controllability, and then make the intensity of visible light at different work wave bands different, thereby make the image information that people's eye received different, can effectively improve the polarisation characteristic of lens, the definition and the third dimension of formation of image have been improved greatly.
It should be noted that, the light splitting film layer 12 is configured to be a situation that a plurality of high refractive index film layers and a plurality of low refractive index film layers are stacked alternately, so that the absorption rate of light can be effectively increased, the reflectivity of the light splitting film 10 to light is reduced, the generation of stray light is reduced, and the imaging quality can be further improved. Meanwhile, the relative illumination can be increased, the phenomenon of vignetting can be reduced, and the imaging quality of the light splitting film 10 can be improved.
Specifically, the refractive index of the high refractive index film layer is 2.0 or more and 2.4 or less. The refractive index of the high-refractive-index film layer is limited within the range of 2.0 to 2.4, which is beneficial to ensuring the high-refractive-index characteristic of the high-refractive-index film layer. The arrangement enables the light splitting film 10 to have good light absorption rate and low reflectivity, so that stray light can be reduced, and imaging quality is guaranteed.
Specifically, the refractive index of the low refractive index film layer is 1.4 or more and 1.5 or less. The refractive index of the low-refractive-index film layer is limited within the range of 1.4 to 1.5, so that the low-refractive-index characteristic of the low-refractive-index film layer is guaranteed. The arrangement enables the light splitting film 10 to have good light absorption rate and low reflectivity, so that stray light can be reduced, and the imaging quality is guaranteed. Meanwhile, the polarization phenomenon of light is reduced, and the imaging quality is improved.
In the wavelength 550 nm, the refractive index of the high refractive index film layer is 2.20 or more and 2.29 or less, and the refractive index of the low refractive index film layer is 1.470 or more and 1.482 or less. Alternatively, the refractive index of the hard coat layer 13 is 1.4 or more and 1.5 or less. The refractive index of the hardened film layer 13 is limited within the range of 1.4 to 1.5, which is beneficial to the stable transmission of visible light in the hardened film layer 13 and ensures the use effect of the hardened film layer 13. Or the refractive index of the hardened film layer 13 is smaller than that of the high refractive index film layer, so that the light splitting film 10 has good light absorption rate, the reflectivity of the light splitting film 10 is reduced, the generation of polarization phenomenon is reduced, and the imaging quality is improved.
Specifically, the material of the hard coating layer 13 is silicone. The material of the hardened film layer 13 is organic silicon, so that the hardened film layer 13 and the light splitting film layer 12 are connected, the structural strength of the hardened film layer 13 is guaranteed, the hardened film layer 13 is effectively prevented from deforming, and the organic silicon has the characteristics of water resistance and wear resistance, is beneficial to protecting the light splitting film layer 12, and further guarantees the durability of the light splitting film 10. The organosilicon has strong hardness, which is beneficial to ensuring the stability of the hardened film layer 13 and ensuring that the light splitting film 10 is not easy to deform.
Optionally, the number of high refractive index film layers is greater than 1. The number of the high-refractive-index film layers is greater than 1, so that the polarization characteristic of the light splitting film 10 is favorably improved, and the practicability of the light splitting film 10 is further ensured.
Specifically, the number of the high refractive index film layers is 5, the number of the low refractive index film layers is 5, and the spectroscopic film 10 includes a first film layer 121, a second film layer 122, a third film layer 123, a fourth film layer 124, a fifth film layer 125, a sixth film layer 126, a seventh film layer 127, an eighth film layer 128, a ninth film layer 129, and a tenth film layer 1210. The first film layer 121 is connected to the hard coating layer 13, the first film layer 121 is a high refractive index film layer, and the thickness of the first film layer 121 is greater than or equal to 8 nanometers and less than or equal to 15 nanometers. First rete 121 and the stiffened film layer 13 is connected, has set up like this and has guaranteed that first rete 121 and stiffened film layer 13 can zonulae occludens, and then guarantees the structural strength of beam splitting rete 12 and stiffened film layer 13. If the thickness of the first film layer 121 is smaller than 8 nm, the thickness of the first film layer 121 is too small, so that the first film layer 121 is not easy to manufacture. If the thickness of the first film 121 is greater than 15 nm, the thickness of the first film 121 is too large, which is not favorable for thinning the first film 121. The thickness of the first film 121 is limited within a range from 8 nm to 15 nm, which is beneficial to ensuring the lightness and thinness of the first film 121 and ensuring the high refractive index characteristic of the first film 121. Preferably, the thickness of the first film layer 121 is 15 nm.
The second film layer 122 is connected to the surface of the first film layer 121 on the side away from the hard coating layer 13, the second film layer 122 is a low refractive index film layer, and the thickness of the second film layer 122 is greater than or equal to 70 nm and less than or equal to 90 nm. The second film layer 122 is connected with the first film layer 121 on the surface far away from the hard coating layer 13, so that the risk that the second film layer 122 is separated from the first film layer 121 is avoided, and the connection tightness of the second film layer 122 and the first film layer 121 is guaranteed. The thickness of the second film 122 is limited within a range from 70 nm to 90 nm, which is beneficial to ensuring the lightness and thinness of the second film 122 and ensuring the low refractive index characteristic of the second film 122. Preferably, the thickness of the second film layer 122 is 79 nanometers.
The third film layer 123 is connected to the surface of the second film layer 122 on the side away from the first film layer 121, the third film layer 123 is a high refractive index film layer, and the thickness of the third film layer 123 is greater than or equal to 15 nm and less than or equal to 35 nm. Third rete 123 is connected with second rete 122 and is kept away from a side surface of first rete 121, sets up like this and has avoided the risk that third rete 123 and second rete 122 break away from, is favorable to guaranteeing the connection compactness of third rete 123 and second rete 122. The thickness of the third film 123 is limited within a range from 15 nm to 35 nm, which is beneficial to ensuring the lightness and thinness of the third film 123 and ensuring the high refractive index characteristic of the third film 123. Preferably, the thickness of the third film layer 123 is 25 nm.
The fourth film layer 124 is connected to the surface of the third film layer 123 on the side away from the second film layer 122, the fourth film layer 124 is a low refractive index film layer, and the thickness of the fourth film layer 124 is greater than or equal to 60 nanometers and less than or equal to 90 nanometers. The fourth rete 124 is connected with a side surface that second rete 122 was kept away from to third rete 123, sets up like this and has avoided the risk that fourth rete 124 and third rete 123 break away from, is favorable to guaranteeing the connection compactness of fourth rete 124 and third rete 123. The thickness of the fourth film 124 is limited within a range from 60 nm to 90 nm, which is beneficial to ensuring the lightness and thinness of the fourth film 124 and ensuring the low refractive index characteristic of the fourth film 124. Preferably, the thickness of the fourth film layer 124 is 75 nanometers.
The fifth film layer 125 and the fourth film layer 124 are connected to a side surface away from the third film layer 123, the fifth film layer 125 is a high refractive index film layer, and the thickness of the fifth film layer 125 is greater than or equal to 45 nm and less than or equal to 55 nm. The surface of one side of the third film layer 123 is kept away from the fifth film layer 125 and the fourth film layer 124, so that the risk of separation of the fifth film layer 125 and the fourth film layer 124 is avoided, and the connection tightness of the fifth film layer 125 and the fourth film layer 124 is guaranteed. Limiting the thickness of the fifth film 125 to be in the range of 45 nm to 55 nm is beneficial to ensuring the lightness and thinness of the fifth film 125 and ensuring the high refractive index of the fifth film 125. Preferably, the thickness of the fifth film layer 125 is 50 nanometers.
The sixth film layer 126 is connected to the surface of the fifth film layer 125 on the side away from the fourth film layer 124, the sixth film layer 126 is a low refractive index film layer, and the thickness of the sixth film layer 126 is greater than or equal to 75 nanometers and less than or equal to 90 nanometers. The surface of one side of the sixth film layer 126 and the fifth film layer 125 far away from the fourth film layer 124 is connected, so that the risk of separation of the sixth film layer 126 and the fifth film layer 125 is avoided, and the connection tightness of the sixth film layer 126 and the fifth film layer 125 is ensured. Limiting the thickness of the sixth film 126 to be in the range of 75 nm to 90 nm is beneficial to ensuring the thinness of the sixth film 126 and ensuring the low refractive index characteristic of the sixth film 126. Preferably, the thickness of the sixth film layer 126 is 85 nanometers.
The seventh film layer 127 is connected to a side surface of the sixth film layer 126 away from the fifth film layer 125, the seventh film layer 127 is a high refractive index film layer, and the thickness of the seventh film layer 127 is greater than or equal to 40 nm and less than or equal to 60 nm. The surfaces of the seventh film layer 127 and the sixth film layer 126, which are far away from the fifth film layer 125, are connected, so that the risk of separation of the seventh film layer 127 from the sixth film layer 126 is avoided, and the connection tightness of the seventh film layer 127 and the sixth film layer 126 is ensured. The thickness of the seventh film 127 is limited within a range of 40 nm to 60 nm, which is beneficial to ensuring the lightness and thinness of the seventh film 127 and ensuring the high refractive index characteristic of the seventh film 127. Preferably, the thickness of the seventh film layer 127 is 60 nm.
The eighth film layer 128 is connected to a side surface of the seventh film layer 127 away from the sixth film layer 126, the eighth film layer 128 is a low refractive index film layer, and the thickness of the eighth film layer 128 is greater than or equal to 90 nm and less than or equal to 105 nm. The surface of one side of the eighth film layer 128, which is far away from the sixth film layer 126, of the seventh film layer 127 is connected, so that the risk of the eighth film layer 128 being separated from the seventh film layer 127 is avoided, and the connection tightness of the eighth film layer 128 and the seventh film layer 127 is ensured. The thickness of the eighth film 128 is limited within a range from 90 nm to 105 nm, which is beneficial to ensuring the lightness and thinness of the eighth film 128 and ensuring the low refractive index characteristic of the eighth film 128. Preferably, the thickness of the eighth film layer 128 is 100 nanometers.
The ninth film layer 129 is connected to the surface of the eighth film layer 128 away from the seventh film layer 127, the ninth film layer 129 is a high refractive index film layer, and the thickness of the ninth film layer 129 is greater than or equal to 45 nm and less than or equal to 65 nm. The ninth film layer 129 and the eighth film layer 128 are connected to a side surface far away from the seventh film layer 127, so that the risk of the ninth film layer 129 and the eighth film layer 128 being separated is avoided, and the tightness of connection between the ninth film layer 129 and the eighth film layer 128 is ensured. The thickness of the ninth film 129 is limited within a range from 45 nm to 65 nm, which is beneficial to ensuring the lightness and thinness of the ninth film 129 and ensuring the high refractive index characteristic of the ninth film 129. Preferably, the thickness of the ninth film layer 129 is 60 nm.
The tenth film layer 1210 is connected to the surface of the ninth film layer 129 on the side away from the eighth film layer 128, the tenth film layer 1210 is a low refractive index film layer, and the thickness of the tenth film layer 1210 is greater than or equal to 45 nm and less than or equal to 65 nm. The tenth film layer 1210 and the ninth film layer 129 are connected to one side surface far away from the eighth film layer 128, so that the risk of separation of the tenth film layer 1210 and the ninth film layer 129 is avoided, and the tightness of connection between the tenth film layer 1210 and the ninth film layer 129 is guaranteed. The thickness of the tenth film 1210 is limited within a range from 45 nm to 65 nm, which is beneficial to ensuring the lightness and thinness of the tenth film 1210 and ensuring the low refractive index characteristic of the tenth film 1210. Preferably, the tenth film layer 1210 has a thickness of 60 nm.
It should be noted that, in the present application, the bandwidth of the spectral curve is increased by increasing the number of the inner film layers of the spectroscopic film layer 12 and increasing the difference between the refractive indexes of the high refractive index film layer and the low refractive index film layer. Through the quantity of the inner film layers of the light splitting film layer 12, the materials of all the film layers and the thicknesses of all the film layers which are reasonably distributed, the limitation on the spectral bandwidth and the thicknesses of the film layers of the lens is overcome, the polarization characteristic of the lens is effectively improved, and the imaging definition and authenticity are greatly improved.
Specifically, the material of the high-refractive-index film layer is TiO2. The arrangement is convenient for manufacturing the high-refractive-index film layer, and simultaneously, the high-refractive-index characteristic of the high-refractive-index film layer is ensured.
Specifically, the material of the low-refractive-index film layer is SiO2. The low-refractive-index film layer is convenient to manufacture and is beneficial to ensuring the low-refractive-index characteristic of the low-refractive-index film layer.
When the wavelength is 550 nm, the high refractive index film material may be Ti according to the physical properties of the material, the film forming environment and the film forming machine3O5The low refractive index film layer material can also be SiO or Al2O3And Si-Al, and different materials can be selected according to actual conditions.
As shown in fig. 2, a spectrum of the lens with an incident angle of 0 ° shows that the inverse transmittance ratio of the spectroscopic film 10 is 1: 1.
As shown in fig. 3, a spectrum of the lens with an incident angle of 20 °.
As shown in fig. 4, a spectrum of the lens with an incident angle of 40 °.
Specifically, the reflectivity Rp of the P-polarized light generated by the light splitting film 10 and the reflectivity Rs of the S-polarized light generated by the light splitting film 10 are at an incident angle of 20 °, and the reflectivity Rp and the reflectivity Rs satisfy the following relationship: l Rs-Rp l < 10; the incident angle is 40 degrees, and the reflectivity Rp and the reflectivity Rs satisfy the following conditions: | Rs-Rp | < 30.
It should be noted that, because the light is incident on the surface of the spectroscopic film 10 in an inclined manner, a polarization effect occurs, and the polarized light splitting ratio in different wavelength bands is obtained by using the incident at different angles, as can be seen from the above, the smaller the incident angle is, the smaller the difference between the reflectance Rp and the reflectance Rs is, and thus the smaller the polarization effect that the light is incident on the surface of the spectroscopic film 10 is, the better the imaging definition is.
As shown in fig. 1, the lens includes a substrate 20 and the above-mentioned spectroscopic film 10, the spectroscopic film 10 is disposed on the substrate 20, and the hard coating layer 13 of the spectroscopic film 10 is connected to the substrate 20. The light splitting film 10 is arranged on the substrate 20, so that the substrate 20 plays a role in bearing and protecting the light splitting film 10, the light splitting film 10 is prevented from being deformed by external force, the structural strength of the light splitting film 10 is ensured, and the structural strength of the lens is further ensured. The hard coating layer 13 of the light splitting film 10 is connected with the substrate 20, so that the risk of separation of the light splitting film 10 from the substrate 20 is avoided, the connection tightness of the light splitting film 10 and the substrate 20 is ensured, and the stability of lens assembly is further ensured. By arranging the light splitting film 10 on the substrate 20, the polarization characteristic of the lens is greatly improved, and the imaging definition and the stereoscopic impression of the lens are improved.
The material of the substrate 20 is resin, and the lens formed by processing the substrate 20 with resin can effectively improve the polarization characteristics of the lens, thereby ensuring the universality of the lens.
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 (10)
1. The utility model provides a light splitting film, characterized in that, the operating band more than or equal to 400 nanometers and the less than or equal to 780 nanometers of light splitting film (10), the incident angle more than or equal to 0 and the less than or equal to 50 of light splitting film (10), light splitting film (10) is including stiffened rete (13), light splitting rete (12) and waterproof layer (11) of superpose in order, light splitting rete (12) are including a plurality of high refractive index retes and a plurality of low refractive index retes, just high refractive index rete with the low refractive index rete piles up in turn, waterproof layer (11) with low refractive index film connects, stiffened rete (13) with high refractive index film connects.
2. A spectroscopic film as set forth in claim 1 wherein the high refractive index film layer has a refractive index of 2.0 or more and 2.4 or less and the low refractive index film layer has a refractive index of 1.4 or more and 1.5 or less.
3. A spectroscopic film according to claim 1 wherein the refractive index of the hard coating layer (13) is 1.4 or more and 1.5 or less.
4. A spectroscopic film according to claim 3 wherein the material of the hard coating layer (13) is silicone.
5. A spectroscopic film as set forth in claim 3 wherein the number of high refractive index film layers is greater than 1.
6. A spectroscopic film as set forth in claim 5 wherein the number of high refractive index film layers is 5, the number of low refractive index film layers is 5,
a first film layer (121), the first film layer (121) being connected to the stiffening film layer (13), the first film layer (121) being a high refractive index film layer, the first film layer (121) having a thickness of 8 nm or more and 15 nm or less;
the second film layer (122) is connected with one side surface, away from the hard coating layer (13), of the first film layer (121), the second film layer (122) is a low-refractive-index film layer, and the thickness of the second film layer (122) is greater than or equal to 70 nanometers and less than or equal to 90 nanometers;
the third film layer (123) is connected with one side surface, away from the first film layer (121), of the second film layer (122), the third film layer (123) is a high-refractive-index film layer, and the thickness of the third film layer (123) is greater than or equal to 15 nanometers and less than or equal to 35 nanometers;
the fourth film layer (124) is connected with one side surface, away from the second film layer (122), of the third film layer (123), the fourth film layer (124) is a low-refractive-index film layer, and the thickness of the fourth film layer (124) is greater than or equal to 60 nanometers and less than or equal to 90 nanometers;
the fifth film layer (125), the fifth film layer (125) is connected with the surface of one side, away from the third film layer (123), of the fourth film layer (124), the fifth film layer (125) is a high-refractive-index film layer, and the thickness of the fifth film layer (125) is greater than or equal to 45 nanometers and less than or equal to 55 nanometers;
a sixth film layer (126), wherein the sixth film layer (126) is connected with one side surface of the fifth film layer (125) far away from the fourth film layer (124), the sixth film layer (126) is a low-refractive-index film layer, and the thickness of the sixth film layer (126) is greater than or equal to 75 nanometers and less than or equal to 90 nanometers;
a seventh film layer (127), wherein the seventh film layer (127) is connected with one side surface of the sixth film layer (126) far away from the fifth film layer (125), the seventh film layer (127) is a high-refractive-index film layer, and the thickness of the seventh film layer (127) is greater than or equal to 40 nanometers and less than or equal to 60 nanometers;
an eighth film layer (128), wherein the eighth film layer (128) is connected with one side surface of the seventh film layer (127) far away from the sixth film layer (126), the eighth film layer (128) is a low-refractive-index film layer, and the thickness of the eighth film layer (128) is greater than or equal to 90 nanometers and less than or equal to 105 nanometers;
a ninth film layer (129), wherein the ninth film layer (129) is connected with one side surface of the eighth film layer (128) far away from the seventh film layer (127), the ninth film layer (129) is a high-refractive-index film layer, and the thickness of the ninth film layer (129) is greater than or equal to 45 nanometers and less than or equal to 65 nanometers;
a tenth film layer (1210), the tenth film layer (1210) is connected with one side surface of the ninth film layer (129) far away from the eighth film layer (128), the tenth film layer (1210) is a low-refractive-index film layer, and the thickness of the tenth film layer (1210) is greater than or equal to 45 nanometers and less than or equal to 65 nanometers.
7. A spectroscopic film according to any one of claims 1 to 6,
the high-refractive-index film layer is made of TiO2(ii) a And/or
The low refractive index film layer is made of SiO2。
8. A spectroscopic film according to any one of claims 1 to 6 wherein the angle of incidence is 0 ° and the inverse transmittance of the spectroscopic film (10) is 1: 1.
9. A splitting film according to any one of claims 1 to 6, wherein the reflectivity Rp of P-polarized light generated by said splitting film (10), the reflectivity Rs of S-polarized light generated by said splitting film (10),
the incident angle is 20 degrees, and the reflectivity Rp and the reflectivity Rs satisfy the following conditions: l Rs-Rp l < 10;
the incident angle is 40 degrees, and the reflectivity Rp and the reflectivity Rs satisfy the following conditions: | Rs-Rp | < 30.
10. An ophthalmic lens, comprising:
a substrate (20) having a plurality of openings,
the spectroscopic film (10) of any one of claims 1 to 9, the spectroscopic film (10) being disposed on the substrate (20) and the hardened film layer (13) of the spectroscopic film (10) being connected to the substrate (20).
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| CN202022057853.2U CN212933034U (en) | 2020-09-18 | 2020-09-18 | Light splitting film and lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022057853.2U CN212933034U (en) | 2020-09-18 | 2020-09-18 | Light splitting film and lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376727A (en) * | 2021-06-16 | 2021-09-10 | 武汉天马微电子有限公司 | Optical device and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376727A (en) * | 2021-06-16 | 2021-09-10 | 武汉天马微电子有限公司 | Optical device and display device |
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