CN110596907A - Optical imaging element and method for manufacturing optical imaging element - Google Patents
Optical imaging element and method for manufacturing optical imaging element Download PDFInfo
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- CN110596907A CN110596907A CN201911021229.2A CN201911021229A CN110596907A CN 110596907 A CN110596907 A CN 110596907A CN 201911021229 A CN201911021229 A CN 201911021229A CN 110596907 A CN110596907 A CN 110596907A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
- G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images
Abstract
The invention discloses an optical imaging element and a manufacturing method thereof. The optical imaging element of the present invention comprises: the light-transmitting laminated body with the even number of layers is provided, each layer comprises a plurality of transparent strips, the transparent strips are provided with reflecting surfaces, and the transparent strips of the two adjacent layers of the light-transmitting laminated body are mutually orthogonal; each layer of transparent strip comprises: the transparent laminating body comprises a first transparent strip, a second transparent strip and a plurality of third transparent strips, wherein the first transparent strip and the second transparent strip are respectively arranged at the edges of two sides of the transparent laminating body, the plurality of third transparent strips are arranged between the first transparent strip and the second transparent strip, and the sum of the widths of the first transparent strip and the second transparent strip is equal to the width of the third transparent strip. According to the invention, through the staggered arrangement, the resolution of aerial imaging is greatly improved, the dependence on application scenes and use environments is reduced, the applicability is greatly expanded, and meanwhile, the manufacturing method is ingenious and simple, and a solid technical foundation is laid for batch production and large-scale commercial use.
Description
Technical Field
The invention relates to a medium-free aerial imaging technology, in particular to an optical imaging element and a manufacturing method of the optical imaging element.
Background
In the prior art, a medium-free aerial imaging technology mainly adopts a micro-channel matrix optical waveguide flat plate, and light paths are reflected twice by two layers of transparent materials which are arranged in an orthogonal mode, so that the light paths are converged in the air again, point light sources, linear light sources and surface light sources can be reflected, and the point light sources, the linear light sources and the surface light sources still remain after the light paths are converged in the air.
Disclosure of Invention
According to an embodiment of the present invention, there is provided an optical imaging element including:
the optical imaging element comprises a plurality of layers of light-transmitting laminated bodies which are laminated, wherein each layer of light-transmitting laminated body comprises a plurality of transparent strips which are mutually laminated, the distance between the surfaces, which are laminated with two adjacent transparent strips, on each transparent strip is the width of the transparent strip, the surfaces, which are mutually laminated, on the transparent strips and/or the opposite surfaces of the surfaces, which are mutually laminated, are provided with reflecting surfaces, the reflecting surfaces comprise but are not limited to reflecting films or reflecting sheets or metal-plated layers and are used for reflecting light rays so as to realize the change of the propagation direction of the light rays in the optical imaging element, and the transparent strips of the adjacent two layers of light-transmitting laminated bodies;
the transparent strip of each layer of the light-transmitting laminate comprises: the light-transmitting laminated body comprises a first transparent strip, a second transparent strip and a plurality of third transparent strips, wherein the first transparent strip and the second transparent strip are respectively arranged at the edges of two sides of the light-transmitting laminated body, the plurality of third transparent strips are arranged between the first transparent strip and the second transparent strip, and the sum of the widths of the first transparent strip and the second transparent strip is equal to the width of the third transparent strip.
Further, the light-transmitting laminate of the outermost layer is denoted as layer 1, the light-transmitting laminate adjacent to and orthogonal to layer 1 is denoted as layer 2, and the light-transmitting laminates are denoted in this order by the numbers: 1,2,3, … … 2N-1,2N, where N is greater than or equal to 2, the widths of the first transparent strips of the light-transmitting laminates of layers 1 and 2 are equal, the widths of the first transparent strips of the light-transmitting laminates of layers 3 and 4 are equal, and so on, the widths of the first transparent strips of the light-transmitting laminates of layers 2N-1 and 2N are equal.
Further, the first transparent strips of the light-transmitting laminated body of the odd layers or the even layers are respectively arranged on the same side of the light-transmitting laminated body of each odd layer or each even layer, and the widths of the first transparent strips of the light-transmitting laminated body of each odd layer or each even layer are not equal.
Further, the widths of the first transparent strips of the light-transmitting laminated body of the odd-numbered layer or the even-numbered layer are in an arithmetic progression.
Further, the tolerance of the arithmetic progression and the width of the first clear bar of the 2N-1 or 2N layer are not greater than 1/N of the width of the third clear bar.
Further, the width of the third transparent bar ranges from 200 μm ~ 2000 μm to 2000 μm.
Further, the thickness of each light-transmitting laminate is in the range of 200 μm ~ 2000 μm.
Further, the thickness of the light-transmitting laminate decreases as the number of layers increases.
Further, the thickness of the reflecting surface is in the range of 5 ~ 400 nm.
And further, the adjacent transparent strips and the transparent laminated bodies are glued and connected by a uniform thin layer of colorless high-transparency high-strength glue.
According to still another embodiment of the present invention, there is provided an optical imaging element manufacturing method including the steps of:
providing a reflective surface on two opposite sides or one side of the transparent strip, wherein the reflective surface includes but is not limited to a reflective film or a reflective sheet or a metal plated layer for reflecting light to realize the change of the propagation direction of the light in the optical imaging element;
sequentially attaching the side surfaces of the transparent strips with the reflecting surfaces to form a light-transmitting layer laminated body;
laminating a second light-transmitting laminated body on the first light-transmitting laminated body, wherein the transparent strips of the two light-transmitting laminated bodies are orthogonal;
a third light-transmitting laminated body is further laminated on the second light-transmitting laminated body and is orthogonal to the second light-transmitting laminated body, and the third light-transmitting laminated body and the first light-transmitting laminated body are arranged in a staggered mode, so that the third light-transmitting laminated body and the non-edge reflection surface of the first light-transmitting laminated body are parallel but not on the same plane;
a fourth light-transmitting laminated body is further laminated on the third light-transmitting laminated body and is orthogonal to the third light-transmitting laminated body, and the fourth light-transmitting laminated body and the second light-transmitting laminated body are arranged in a staggered mode, so that the non-edge reflection surfaces of the fourth light-transmitting laminated body and the second light-transmitting laminated body are parallel but not on the same plane;
according to actual needs, the fourth light-transmitting laminated body can be further laminated layer by layer and orthogonal to the even light-transmitting laminated bodies layer by layer, and the light-transmitting laminated body of each odd-numbered laminated body is arranged in a staggered mode with the light-transmitting laminated bodies of other odd-numbered laminated bodies, so that the non-edge reflecting surface of each light-transmitting laminated body is not on the same plane.
Further, the displacement directions of the odd-numbered light-transmitting laminates are the same, and the displacement directions of the even-numbered light-transmitting laminates are the same.
Further, the method also comprises the following steps:
filling transparent strips in the staggered concave positions of the staggered light-transmitting laminated bodies by taking the edge of the first light-transmitting laminated body as a reference so as to align the edges of the multiple layers of light-transmitting laminated bodies;
cutting the staggered protruding parts of the staggered light-transmitting laminated bodies by taking the edge of the first light-transmitting laminated body as a reference so as to align the edges of the multilayer light-transmitting laminated bodies;
and reflecting surfaces are arranged on the cutting surface of the cut transparent bar and the side surface of the newly filled transparent bar.
Or, further, comprising the steps of:
cutting a plurality of light-transmitting laminated bodies which are staggered and laminated and are orthogonal in the direction of the reflecting surface by taking the edge of the first light-transmitting laminated body as a reference;
and a reflecting surface is arranged on the cutting surface of the transparent strip cut at the two sides of the multilayer light-transmitting laminated body.
Further, the method also comprises the following steps:
cutting a square on the last light-transmitting laminated body, wherein any side of the square is not parallel to any light-transmitting strip, and the projection of the square on the plane of the first light-transmitting laminated body is on the first light-transmitting laminated body;
and cutting the square as the bottom surface along the direction vertical to the light-transmitting laminated body until all the light-transmitting laminated bodies are cut, thereby obtaining a new multilayer light-transmitting laminated body with the same layer number.
Further, the difference of the included angles of any side of the square and the pair of transparent bars is not more than 60 degrees.
Further, the included angle between any side of the square and any light transmission strip is 45 degrees.
Further, the method for cutting a square on the last light-transmitting laminate comprises the following substeps:
cutting a shaped square, wherein two opposite sides of the shaped square are respectively parallel to the light-transmitting strips;
and rotating a cutting angle by taking the center of the shaped square as an axis to obtain a cutting square, wherein the projection of the cutting square on the plane of the first light-transmitting laminated body is on the first light-transmitting laminated body.
Further, the cutting angle is acute and not less than 15 °.
Further, the cutting angle is 45 °.
Further, the displacement amount of the third light-transmitting laminate is equal to that of the fourth light-transmitting laminate, and so on, the displacement amount of any subsequent odd-numbered light-transmitting laminate is equal to that of the subsequent even-numbered light-transmitting laminate.
Further, the displacement amounts of the third and subsequent odd-numbered transparent laminated bodies or the fourth and subsequent even-numbered transparent laminated bodies are not equal.
Further, the displacement amounts of the third and subsequent odd-numbered light-transmitting laminates or the fourth and subsequent even-numbered light-transmitting laminates are in an arithmetic progression.
Further, the tolerance of the arithmetic progression and the displacement of the dislocation of the two light-transmitting laminated bodies which are laminated finally are not more than 1/n of the width of the transparent strip, wherein n is 1/2 of the total number of the light-transmitting laminated bodies.
Further, the thickness of the reflecting surface is in the range of 5 ~ 400 nm.
And further, the adjacent transparent strips and the transparent laminated bodies are glued and connected by a uniform thin layer of colorless high-transparency high-strength glue.
Further, the glue includes, but is not limited to, a photosensitive glue or a UV glue.
Further, the thickness of each light-transmitting laminate is in the range of 200 μm ~ 2000 μm.
Further, the thickness of the light-transmitting laminate decreases as the number of layers increases.
According to the optical imaging element and the manufacturing method thereof disclosed by the embodiment of the invention, through dislocation arrangement, the resolution of aerial imaging is greatly improved, the dependence on application scenes and use environments is reduced, the applicability is greatly expanded, and meanwhile, the manufacturing method is ingenious and simple, and a solid technical foundation is laid for batch production and large-scale commercial use.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
FIG. 1 is a schematic diagram of an orthogonal arrangement of a stack of two adjacent light-transmissive layers of an optical imaging element according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a multilayer light-transmitting laminate of an optical imaging member according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a multilayer light transmissive laminate of an optical imaging member according to an embodiment of the invention;
FIG. 4 is a schematic top view of a micromirror imaging structure of an optical imaging device according to an embodiment of the invention;
FIG. 5 is a flow chart of a first method for manufacturing an optical imaging element according to an embodiment of the invention;
FIG. 6 is a flow chart of a second method for manufacturing an optical imaging element according to an embodiment of the present invention;
FIG. 7 is a flow chart of a third method for manufacturing an optical imaging element according to an embodiment of the present invention;
FIG. 8 is a schematic illustration of a cut according to the method of FIG. 7;
FIG. 9 is a schematic structural view of a plurality of light-transmitting laminates cut as shown in FIG. 8;
FIG. 10 is a schematic diagram of a user's optimal viewing angle of an optical imaging element according to an embodiment of the present invention;
fig. 11 is a schematic diagram of the user viewing angle of 45 ° in fig. 10.
Detailed Description
The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.
First, an optical imaging element according to an embodiment of the present invention will be described with reference to fig. 1 ~ 4, which is used for aerial media-free imaging, and can be used for conferences, teaching, presentations, media, urban infrastructures, and the like, and has a wide application range.
As shown in fig. 1 ~, an optical imaging element according to an embodiment of the present invention includes a light-transmitting laminate 1 having an even number of stacked layers, wherein each light-transmitting laminate 1 has a plurality of transparent strips 11 attached to each other, the surfaces of the transparent strips 11 attached to each other and/or the surfaces opposite to the surfaces attached to each other are provided with a reflective surface, the transparent strips 11 of two adjacent layers of light-transmitting laminates 1 are orthogonal to each other, that is, the two layers of light-transmitting laminates 1 are orthogonal to each other, so that a dielectric-free image can be formed in the air after reflection of an optical path, the surface on which the reflective surface is provided on the transparent strip 11, that is, the distance between the surfaces attached to the plurality of transparent strips 11 and the opposite surface is set to be a width, that is, the edge connecting the two reflective surfaces is wide, the other pair of edges of the surface is long, therefore, the other group of edges is high, the height substantially determines the thickness of the light-transmitting laminate 1, in this embodiment, preferably, the thickness range of each light-transmitting laminate 1 is 200 μm ~ μm, and the light-transmitting laminate 11 is preferably set to be equal to the total thickness of the light-transmitting laminate 2 μm, and the light-transmitting laminate 11 is set according to the required by setting the required total thickness of the light-transmitting laminate 2 μm, which is equal to ensure the light-transmitting.
In this embodiment, the bonding between the light-transmitting laminated bodies 1 or the transparent strips 11 can be performed by bonding and gluing with a thin and uniform layer of colorless, highly transparent and high-strength glue, preferably, the thickness range of the glue is 1 ~ 200 μm, the glue is colorless photosensitive glue or UV glue, or the glue can be bonded tightly by using an outer frame or other constraint methods instead of using a glue-bonding method.
In the present embodiment, the reflective surface is a reflective film or a reflective surface or a reflective sheet or a metal plated layer, and the reflective surface is preferably made of metal such as silver or aluminum, and the thickness of the reflective surface is preferably 5 ~ 400nm, and the specific shape or name of the reflective surface is not limited thereto, and the thickness of the reflective surface should be as thin as possible as the relevant process and material allow.
Specifically, as shown in fig. 1 ~ 4, the transparent bar 11 of each layer of the light-transmitting laminated body 1 includes a first transparent bar 111, a second transparent bar 112, and a plurality of third transparent bars 113 disposed between the first transparent bar 111 and the second transparent bar 112, in this embodiment, the width of the third transparent bars 113 is a conventional size, that is, the width range thereof is also 200 μm ~ 2000 μm, the first transparent bar 111 and the second transparent bar 112 are special size transparent bars, and the sum of the widths of the first transparent bar 111 and the second transparent bar 112 is equal to the width of the third transparent bars 113.
Further, as shown in FIG. 1 ~ 4, the light-transmitting laminate 1 at the outermost layer is denoted as layer 1, and the light-transmitting laminate 1 adjacent to and orthogonal to layer 1 is denoted as layer 2, and the numbers of the light-transmitting laminates 1 in this order are 1,2,3, … … 2N-1,2N, where N is equal to or greater than 2, the width of the first transparent stripe 111 of the light-transmitting laminate 1 at layers 1 and 2 is equal, the width of the first transparent stripe 111 of the light-transmitting laminates 1 at layers 3 and 4 is equal, and so on, the width of the first transparent stripe 111 of the light-transmitting laminate 1 at layer 2N-1 is equal to that of the first transparent stripe 111 of the light-transmitting laminate 1 at layer 2N.
Further, as shown in fig. 1 ~ 4, the first transparent bars 111 of the light-transmitting laminates 1 of the odd-numbered layers or the even-numbered layers are respectively disposed on the same side of the light-transmitting laminates 1 of the odd-numbered layers or the even-numbered layers, the widths of the first transparent bars 111 of the light-transmitting laminates 1 of the odd-numbered layers or the even-numbered layers are not equal, and the sum of the widths of the first transparent bars 111 and the second transparent bars 112 is equal to the width of the third transparent bars 113, and since the widths are aligned with the edges, the first transparent bars 111 with unequal widths of the layers form the dislocation of the reflection surfaces of the light-transmitting laminates 1 of the layers, that is, the reflection surfaces of the transparent bars 11 of the non-edge of the light-transmitting laminates 1 of the odd-numbered layers or the even-numbered layers are not on the same plane, as shown in fig. 4, a micromirror imaging structure is formed, so that the.
Preferably, in the present embodiment, in order to ensure production process standardization and product quality, and ensure uniform image resolution, the widths of the first transparent bars 111 of the light-transmitting laminated body 1 of the odd-numbered layers or even-numbered layers are respectively distributed in an arithmetic progression, the tolerance of the arithmetic progression and the width of the first transparent bars 111 of the 2N-1 or 2N-th layers are not greater than 1/N of the width W of the third transparent bars 113, and preferably, the width of the first transparent bars 111 of the 1 st and 2 nd layers is set as the width of the third transparent bars 113, so that the width of the second head type bars 112 is 0, that is, the tolerance is set as 1/N of the width W of the third transparent bars 113 based on the odd-numbered layers and even-numbered layers of the 1 st and 2 nd layers, respectively, that is, the tolerance is W/N, so is the width of the first transparent bars 111 of the 2N-1 or 2N layers. As shown in FIG. 4, it can be seen that the number of cells displaying an image is increased, decreased, and uniform by setting the widths of the third transparent strips 13 at different levels, and the resolution can reach N when only 2 layers of the transparent laminate 1 are used2And (4) doubling.
As described above, in the optical imaging element according to the embodiment of the present invention, through the staggered arrangement, the resolution of aerial imaging is greatly improved, the dependency on an application scene and a use environment is reduced, and the applicability is greatly expanded.
Further, the optical imaging element according to the embodiment of the present invention can be manufactured by the optical imaging element manufacturing method of the following embodiment, which will be described below with reference to fig. 1 ~ 9 with reference to fig. 1 ~ 4.
As shown in fig. 1 ~ 9, the method for manufacturing an optical imaging element according to the embodiment of the present invention includes the steps of:
in step S1, reflective surfaces are disposed on two opposite sides or one side of the transparent strip 11, in this embodiment, the reflective surfaces are reflective films or reflective surfaces or reflective sheets or metal-plated layers, and the reflective surfaces are preferably made of metal such as silver or aluminum, and have a thickness in the range of 5 ~ 400nm, and the specific shape or name of the reflective surfaces is not limited thereto, and the reflective surfaces should be as thin as possible as the relevant process and material allow.
In step S2, the side surfaces of the transparent strips 11 having the reflective surfaces are sequentially bonded to form the transparent laminated body 1, in this embodiment, the edge between the surfaces of the transparent strips 11 where the two sides are bonded to other transparent strips 11 is wide, the other edge of the surface is long, and the other edge of the transparent strip 11 is high, which determines the thickness of the transparent laminated body 1, preferably, the thickness range of each transparent laminated body 1 is 200 μm ~ 2000 μm, and the thickness of the transparent laminated body 1 gradually decreases with the increase of the number of the blocks, that is, the height of the transparent strip 11 needs to gradually decrease, so as to ensure the light passing rate.
In step S3, as shown in fig. 1, the second light-transmitting laminate 1 is laminated on the first light-transmitting laminate 1, and the transparent bars 11 of the two light-transmitting laminates 1 are orthogonal to each other, so that the dielectric-free imaging is performed in the air after the reflection of the light path.
In step S4, as shown in fig. 3, a third light-transmitting laminate 1 is further laminated on the second light-transmitting laminate 1 so as to be orthogonal to the second light-transmitting laminate 1, and the third light-transmitting laminate 1 is disposed to be offset from the first light-transmitting laminate 1 so that the non-edge reflection surfaces of the third light-transmitting laminate and the first light-transmitting laminate are parallel but not on the same plane, thereby forming a micromirror imaging structure.
In step S5, as shown in fig. 3, a fourth light-transmitting laminate 1 is further laminated on the third light-transmitting laminate 1 so as to be orthogonal thereto, the fourth light-transmitting laminate 1 and the second light-transmitting laminate 1 are arranged so as to be offset from each other, the non-edge reflection surfaces of the fourth light-transmitting laminate 1 and the second light-transmitting laminate 1 are parallel to each other but not on the same plane, and the number of cells displaying an image in the micromirror imaging structure is further increased and decreased, thereby further improving the resolution.
In step S6, as shown in fig. 2, according to actual needs, an even number of light-transmitting laminated bodies may be further laminated layer by layer and orthogonal layer by layer on the fourth light-transmitting laminated body 1, and the light-transmitting laminated body of each odd number is arranged to be offset from the light-transmitting laminated bodies of other odd numbers, so that the non-edge reflection surfaces of each light-transmitting laminated body are not on the same plane. In this embodiment, the misalignment displacement directions of the odd-numbered light-transmitting laminates 1 are the same, and the misalignment displacement directions of the even-numbered light-transmitting laminates 1 are the same, which facilitates process standardization and stability, and facilitates mass production.
Further, in the present embodiment, in order to ensure production process standardization and product quality, and to ensure uniform image resolution, the misalignment amount of the third transparent laminate 1 is equal to that of the fourth transparent laminate 1, and so on, the misalignment amount of any subsequent odd-numbered laminate is equal to that of the subsequent even-numbered laminate, and at the same time, the misalignment amount of the third and subsequent odd-numbered laminates 1, or the misalignment amount of the fourth and subsequent even-numbered laminates 1 is not equal, further, the misalignment amount of the third and subsequent odd-numbered laminates or the fourth and subsequent even-numbered laminates is in an arithmetic series, the tolerance of the arithmetic series and the misalignment amount of the last laminated two transparent laminates 1 are not greater than 1/n of the width of the transparent strip 11, where n is 1/2 of the total number of transparent laminates, in the present embodiment, the width w of the transparent strip 11 is preferably in the range of 200 μm ~ 2000 μm, and the effect of the overlapping width of the first and second transparent laminates 1 is set as the tolerance of the width of the transparent strip 11, and the effect of the overlapping transparent strips is set as w of the odd-numbered laminates 1, and the effect of the overlapping transparent strips is set as w, and the effect of the overlapping of the odd-numbered laminates 1, and the offset amount of the displacement amount of the transparent strips is set as shown in the odd-numbered laminates 1, and the result of the shift of the optical stack is set as shown in the optical stack, where w is set as the optical stack, and the optical stackThe number of units for displaying image is increased, decreased, and uniform, and the resolution is n2And (4) doubling.
In this embodiment, the transparent laminates 1 or the transparent strips 11 in the above steps are bonded and adhered by a thin uniform layer of colorless, highly transparent and high-strength glue, preferably, the thickness range of the glue is 1 ~ 200 μm, the glue is colorless photosensitive glue or UV glue, and in the present invention, the bonding between the transparent laminates 1 or the transparent strips 11 may be tight by using an outer frame or other constraint manner instead of the bonding manner.
Further, in the first method, as shown in fig. 5, the method further includes the following steps:
in step S711, the transparent stripe 11 is filled in the offset recess of each offset light-transmitting laminated body 1 with the edge of the first light-transmitting laminated body 1 as a reference, so that the edges of the light-transmitting laminated bodies 1 are aligned, and since the offset displacement direction of each odd-numbered light-transmitting laminated body 1 is the same and the offset displacement direction of each even-numbered light-transmitting laminated body 1 is the same, the filled transparent stripe 11 constitutes the first transparent stripe 111 in the optical imaging device according to the foregoing embodiment.
In step S712, the edge of the first light-transmitting laminated body 1 is used as a reference, the offset protruding portions of the light-transmitting laminated bodies 1 that are offset are cut, so that the edges of the light-transmitting laminated bodies are aligned, and the offset protruding portions are formed, so that the width of the cut transparent bar 11 is a displacement amount, i.e., the width of the first transparent bar 111, and the remaining portion constitutes the second transparent bar 112 in the optical imaging element according to the foregoing embodiment.
In step S713, reflective surfaces are provided on the cut surfaces of the cut transparent bar 11, i.e., the second transparent bar 112, and the side surfaces of the newly filled transparent bar, i.e., the first transparent bar 111.
Further, in the second method, as shown in fig. 6, the method further includes the following steps:
in step S721, when the size of the other light-transmitting laminated body 1 is larger than that of the first light-transmitting laminated body 1 with respect to the edge of the first light-transmitting laminated body 1, although there is a displacement, the entire light-transmitting laminated body 1 is covered, and therefore, a plurality of light-transmitting laminated bodies 1 which are alternately laminated and orthogonal to each other are cut directly in the direction of the reflection surface, and after the cutting, the first transparent stripe 111 and the first transparent stripe 112 in the optical imaging element according to the foregoing embodiment are formed on both sides of each light-transmitting laminated body, and since the width of the first light-transmitting laminated body 1 is the width of the integral number of transparent stripes 11 with respect to the edge of the first light-transmitting laminated body 1, the sum of the widths of the first transparent stripe 111 and the first transparent stripe 112 is equal to the width of.
In step S722, a reflection surface is provided on the cut surfaces of the transparent stripe 11 cut on both sides of the plurality of light-transmitting laminated bodies 1.
Further, in the third method, as shown in fig. 7 ~ 11, the method further includes the following steps:
in step S731, as shown in fig. 8, a square 10 is cut out from the last light-transmitting laminated body 1, any side of the square 10 is not parallel to any light-transmitting strip 11, and the projection of the square 10 on the plane where the first light-transmitting laminated body 1 is located is on the first light-transmitting laminated body 1, so that the edge misalignment caused by misalignment can be avoided; in the present embodiment, in order to make the user at the optimal viewing angle, as shown in fig. 10, the mutually orthogonal transparent bars respectively have an angle not less than 15 ° with the user's line of sight, that is, the user's line of sight is located within 60 ° between the mutually orthogonal transparent bars 11, that is, the difference between the angles of any side of the square 10 and the pair of transparent bars 11 is not more than 60 °. Preferably, as shown in fig. 11, the angle between the user's line of sight and the mutually orthogonal transparent bars 11 is 45 °, i.e. the angle between any side of the square 10 and any one of the transparent bars 11 is 45 °.
Further, in this embodiment, as shown in fig. 8 and 9, the method of cutting a square 10 on the last light-transmitting laminate 1 may be divided into the following two steps:
in step S7311, as shown in fig. 8, a shaped square is cut out, and two opposite sides of the shaped square are parallel to the light-transmitting strip 11;
in step S7312, as shown in fig. 8, a cutting square, i.e., a square 10, is obtained by rotating a cutting angle around the center of the shaped square as an axis, and the projections of the cutting square on the plane where the first light-transmitting laminated body 1 is located are all on the first light-transmitting laminated body 1. In this embodiment, the cut angle is an acute angle and not less than 15 °, and further, preferably, as shown in fig. 11, the cut angle is 45 °, which can ensure that the user is at an optimal viewing angle.
In step S732, as shown in fig. 9, a square 10 is used as a bottom surface, and the light-transmitting laminate 1 is cut in a direction perpendicular to the light-transmitting laminate 1 until all the light-transmitting laminates 1 are cut, so as to obtain a new plurality of light-transmitting laminates having the same number of layers.
As described above, according to the optical imaging element manufacturing method of the embodiment of the present invention, through the process of the staggered arrangement, the manufacturing method is ingenious and simple, the resolution of aerial imaging is greatly improved, the dependence on application scenes and use environments is reduced, the applicability is greatly expanded, and a solid technical foundation is laid for mass production and large-scale commercial use.
In the present invention, the expressions regarding different number units of the "layers" or "blocks" of the light-transmitting laminate 1 are only for the purpose of facilitating accurate expression in different contexts, and do not constitute a difference in technical solutions.
The optical imaging element and the manufacturing method of the optical imaging element according to the embodiment of the invention are described above with reference to fig. 1 ~ 11, the resolution of aerial imaging is greatly improved through dislocation arrangement, the dependence on application scenes and use environments is reduced, the applicability is greatly expanded, and meanwhile, the manufacturing method is ingenious and simple, and a solid technical foundation is laid for batch production and large-scale commercial use.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an optical imaging element" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (29)
1. An optical imaging element, comprising:
the optical imaging element comprises a plurality of layers of light-transmitting laminated bodies which are laminated, wherein each layer of light-transmitting laminated body comprises a plurality of transparent strips which are mutually laminated, the distance between the surfaces, which are laminated with two adjacent transparent strips, on each transparent strip is the width of the transparent strip, the surfaces, which are mutually laminated, on the transparent strips and/or the opposite surfaces of the surfaces, which are mutually laminated, are provided with reflecting surfaces, the reflecting surfaces comprise but are not limited to reflecting films or reflecting sheets or metal-plated layers and are used for reflecting light rays so as to realize the change of the propagation direction of the light rays in the optical imaging element, and the transparent strips of the adjacent two layers of light-transmitting laminated bodies;
the transparent strip of each layer of the light-transmitting laminate comprises: the light-transmitting laminated body comprises a first transparent strip, a second transparent strip and a plurality of third transparent strips, wherein the first transparent strip and the second transparent strip are respectively arranged at the edges of two sides of the light-transmitting laminated body, the plurality of third transparent strips are arranged between the first transparent strip and the second transparent strip, and the sum of the widths of the first transparent strip and the second transparent strip is equal to the width of the third transparent strip.
2. The optical imaging element according to claim 1, wherein the light-transmitting laminate which is the outermost layer is labeled as layer 1, the light-transmitting laminate which is adjacent to and orthogonal to layer 1 is labeled as layer 2, and the light-transmitting laminates are labeled in this order with the numbers: 1,2,3, … … 2N-1,2N, where N ≧ 2 (the number series {2N | N > =2} is 4, 6, 8, 10 … …, contradicts 1,2,3, … … 2N-1,2N, and needs to be modified to a more accurate description), the widths of the first transparent strips of the light-transmitting stacks of layers 1 and 2 are equal, the widths of the first transparent strips of the light-transmitting stacks of layers 3 and 4 are equal, and so on, the widths of the first transparent strips of the light-transmitting stacks of layers 2N-1 and 2N are equal.
3. An optical imaging element according to claim 1 or 2, wherein the first transparent stripes of the light-transmitting stacks of odd or even layers are arranged on the same side of the light-transmitting stack of each odd or even layer, respectively, the widths of the first transparent stripes of the light-transmitting stacks of each odd or even layer being unequal.
4. The optical imaging element according to claim 3, wherein the widths of the first transparent stripes of the light transmitting laminate of the odd-numbered layers or the even-numbered layers are respectively in an arithmetic progression.
5. The optical imaging element according to claim 4, wherein the tolerance of the arithmetic progression and the width of the first clear bar of the 2N-1 or 2N layer is not greater than 1/N of the width of the third clear bar.
6. An optical imaging element according to claim 1 or 5, wherein the width of the third transparent stripe is in the range of 200 μm ~ 2000 μm.
7. The optical imaging element of claim 1 wherein each of said light transmissive stacks has a thickness in the range of 200 μm ~ 2000 μm.
8. The optical imaging element according to claim 7, wherein the thickness of the light-transmitting laminate decreases as the number of layers increases.
9. The optical imaging element according to claim 1, wherein the reflecting surface has a thickness in the range of 5 ~ 400 nm.
10. The optical imaging element according to claim 1, wherein said adjacent transparent strips and said transparent laminates are bonded together by a thin uniform layer of colorless, highly transparent, and highly strong glue.
11. A method for manufacturing an optical imaging element, comprising the steps of:
providing a reflective surface on two opposite sides or one side of the transparent strip, wherein the reflective surface includes but is not limited to a reflective film or a reflective sheet or a metal plated layer for reflecting light to realize the change of the propagation direction of the light in the optical imaging element;
sequentially attaching the side surfaces of the transparent strips with the reflecting surfaces to form a light-transmitting layer laminated body;
laminating a second light-transmitting laminated body on the first light-transmitting laminated body, wherein the transparent strips of the two light-transmitting laminated bodies are orthogonal;
a third light-transmitting laminated body is further laminated on the second light-transmitting laminated body and is orthogonal to the second light-transmitting laminated body, and the third light-transmitting laminated body and the first light-transmitting laminated body are arranged in a staggered mode, so that the third light-transmitting laminated body and the non-edge reflection surface of the first light-transmitting laminated body are parallel but not on the same plane;
a fourth light-transmitting laminated body is further laminated on the third light-transmitting laminated body and is orthogonal to the third light-transmitting laminated body, and the fourth light-transmitting laminated body and the second light-transmitting laminated body are arranged in a staggered mode, so that the non-edge reflection surfaces of the fourth light-transmitting laminated body and the second light-transmitting laminated body are parallel but not on the same plane;
according to actual needs, the even number of light-transmitting laminated bodies can be further laminated on the fourth light-transmitting laminated body one by one and orthogonal layer by layer, and the light-transmitting laminated body of each odd number is arranged in a staggered mode with the light-transmitting laminated bodies of other odd number, so that the non-edge reflecting surface of each light-transmitting laminated body is not on the same plane.
12. The method for manufacturing an optical imaging element according to claim 11, wherein the misalignment displacement direction of each odd-numbered light-transmitting laminate is uniform, and the misalignment displacement direction of each even-numbered light-transmitting laminate is uniform.
13. The method for manufacturing an optical imaging element according to claim 12, further comprising the steps of:
filling transparent strips in the staggered concave positions of the staggered light-transmitting laminated bodies by taking the edge of the first light-transmitting laminated body as a reference so as to align the edges of the light-transmitting laminated bodies;
cutting the staggered protruding parts of the staggered light-transmitting laminated bodies by taking the edge of the first light-transmitting laminated body as a reference so as to align the edges of the light-transmitting laminated bodies;
and reflecting surfaces are arranged on the cutting surface of the cut transparent bar and the side surface of the newly filled transparent bar.
14. The method for manufacturing an optical imaging element according to claim 12, further comprising the steps of:
cutting a plurality of light-transmitting laminated bodies which are staggered and laminated and are orthogonal in the direction of the reflecting surface by taking the edge of the first light-transmitting laminated body as a reference;
and reflecting surfaces are arranged on the cutting surfaces of the transparent bars cut at the two sides of the plurality of light-transmitting laminated bodies.
15. The method for manufacturing an optical imaging element according to claim 12, further comprising the steps of:
cutting a square on the last light-transmitting laminated body, wherein any side of the square is not parallel to any light-transmitting strip, and the projection of the square on the plane of the first light-transmitting laminated body is on the first light-transmitting laminated body;
and cutting the square as the bottom surface along the direction vertical to the light-transmitting laminated body until all the light-transmitting laminated bodies are cut, thereby obtaining a new multilayer light-transmitting laminated body with the same number of blocks.
16. The method for manufacturing an optical imaging element according to claim 15, wherein the difference between the angles of either side of the square and the transparent strips is not more than 60 °.
17. The method of claim 16, wherein any side of the square is at an angle of 45 ° to any light transmitting strip.
18. The method for manufacturing an optical imaging element according to claim 15, wherein the cutting method for cutting a square on the last light-transmitting laminate comprises the substeps of:
cutting a shaped square, wherein two opposite sides of the shaped square are respectively parallel to the light-transmitting strips;
and rotating a cutting angle by taking the center of the shaped square as an axis to obtain a cutting square, wherein the projection of the cutting square on the plane of the first light-transmitting laminated body is on the first light-transmitting laminated body.
19. The method for manufacturing an optical imaging element according to claim 18, wherein the cut angle is an acute angle and not less than 15 °.
20. The method for manufacturing an optical imaging element according to claim 19, wherein the cutting angle is 45 °.
21. The method for manufacturing an optical imaging element according to claim 12 ~ 15, wherein the misalignment amount of the third transparent laminate is equal to that of the fourth transparent laminate, and so on, and the misalignment amount of any subsequent odd-numbered transparent laminate is equal to that of any subsequent even-numbered transparent laminate.
22. The optical imaging element according to claim 21, wherein the misalignment amounts of the third and subsequent odd-numbered light-transmissive stacks or the fourth and subsequent even-numbered light-transmissive stacks are not equal.
23. The optical imaging element according to claim 22, wherein the misalignment amounts of the third and subsequent odd-numbered light-transmissive stacks or the fourth and subsequent even-numbered light-transmissive stacks are in an arithmetic progression.
24. The optical imaging element of claim 23 wherein the tolerance of said series of equal difference numbers and the amount of misalignment of the two light transmissive stacks laminated last are no greater than 1/n of the width of said transparent strip, where n is 1/2 of the total number of light transmissive stacks.
25. The method for manufacturing an optical imaging element according to claim 11 or 12, wherein the reflecting surface has a thickness in a range of 5 ~ 400nm for reflecting light to effect a change in the traveling direction of the light in the optical imaging element.
26. A method for manufacturing an optical imaging element according to claim 11 or 12, wherein adjacent transparent strips and the transparent laminated bodies are bonded together by a uniform thin layer of colorless high-transparency high-strength glue.
27. The method of claim 26 wherein said glue comprises but is not limited to a photosensitive glue or a UV glue.
28. The optical imaging element of claim 11 wherein each light transmissive laminate has a thickness in the range of 200 μm ~ 2000 μm.
29. The optical imaging element of claim 28, wherein the thickness of the light transmissive laminate decreases with increasing number of layers.
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| CN201911021229.2A CN110596907A (en) | 2019-10-25 | 2019-10-25 | Optical imaging element and method for manufacturing optical imaging element |
| PCT/CN2020/086928 WO2021077703A1 (en) | 2019-10-25 | 2020-04-26 | Optical imaging element and manufacturing method for optical imaging element |
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| CN201911021229.2A CN110596907A (en) | 2019-10-25 | 2019-10-25 | Optical imaging element and method for manufacturing optical imaging element |
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| CN114488563A (en) * | 2022-04-15 | 2022-05-13 | 北京中建慧能科技有限公司 | Method for manufacturing optical imaging device with array type reflecting unit |
| WO2023138625A1 (en) * | 2022-01-19 | 2023-07-27 | 像航(如东)科技有限公司 | Micro-channel matrix optical waveguide flat plate and preparation method therefor |
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