CN108761611A - Orthogonal column mirror grating - Google Patents
Orthogonal column mirror grating Download PDFInfo
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- CN108761611A CN108761611A CN201810917008.2A CN201810917008A CN108761611A CN 108761611 A CN108761611 A CN 108761611A CN 201810917008 A CN201810917008 A CN 201810917008A CN 108761611 A CN108761611 A CN 108761611A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
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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
- G02B30/26—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 of the autostereoscopic type
- G02B30/27—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 of the autostereoscopic type involving lenticular arrays
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Abstract
An embodiment of the present invention provides a kind of orthogonal column mirror gratings, including：First cylindrical lens grating film and the second cylindrical lens grating film, the first cylindrical lens grating film and the second cylindrical lens grating film are stacked；The first cylindrical mirror face setting orthogonal with the second cylindrical mirror face of the second cylindrical lens grating film of first cylindrical lens grating film, the region between the first cylindrical lens grating film and the second cylindrical lens grating film are filled by default refractive index glue.By by the setting orthogonal with the second cylindrical mirror face of the first cylindrical mirror face, form orthogonal column mirror grating, it is not imaged blind area, 360 degree of stereo-pictures of high quality can be produced, and 4D pictures, spheric grating can also be substituted simultaneously and makes 360 degree of circulation stereo patterns, 3 D grating can be used as to make bore hole stereotome, be can be used as the critical component for constituting various bore hole stereotomes.Refractive index glue is preset by the area filling between the first cylindrical lens grating film and the second cylindrical lens grating film, orthogonal column mirror grating integration, transport and use compact-sized, easy to produce may be implemented.
Description
Technical field
The present embodiments relate to optics display technology fields, more particularly, to orthogonal column mirror grating.
Background technology
3D relief paintings, also known as " three-dimensional stereograph, relief painting, raster 3-D picture etc. " are to utilize binocular vision difference and light
Refraction principle is learned, can directly be seen that a width three-dimensional stereograph in a plane, and wants to show stereoscopic effect, then is needed
Utilize " grating " this Optical devices.
With reaching its maturity for grating stereo imaging technique, the quality of stereotome is higher and higher, and cost of manufacture is more next
Lower, stereotome starts to be popularized.In the making material of stereotome, 3 D grating is essential, cubic light
Grid include column mirror grating, slit grating and spheric grating, and column mirror grating is for making reflective and transmission-type stereotome, slit
Grating can only make transmission-type solid lamp piece.Column mirror grating and slit grating are also used as cartoon grating use, make and become figure
With frame sequence animation.Spheric grating can see stereoscopic effect from 360 degree, since surface forms for spherical crown one by one, spherical crown
Between generally have a gap, there is transmission photographic fog when making stereo-picture, be usually used to comparison and simply recycle pattern type
It is three-dimensional.
The spherical crown outer profile on spheric grating surface is cut to rectangular, you can solving spheric grating has gap and can not be formed multiple
The problem of miscellaneous image, but the technology difficulty of grating mold and cost are all very high, grating picture production field is not yet at present
The grating of such high-fineness.Therefore, spheric grating can be solved and have gap and can not form complicated figure by being now badly in need of providing one kind
As the problem of orthogonal column mirror grating.
Invention content
It solves the above problems in order to overcome the problems referred above or at least partly, an embodiment of the present invention provides a kind of orthogonal columns
Mirror grating.
An embodiment of the present invention provides a kind of orthogonal column mirror gratings, including：First cylindrical lens grating film and the second column mirror grating
Film, first cylindrical lens grating film and second cylindrical lens grating film are stacked；
First cylindrical mirror face of first cylindrical lens grating film is orthogonal with the second cylindrical mirror face of second cylindrical lens grating film to be set
It sets, and described at least one face of orthogonal column mirror grating is plane, first cylindrical lens grating film and second column mirror grating
It is filled by default refractive index glue in region between film.
Orthogonal column mirror grating provided in an embodiment of the present invention includes：First cylindrical lens grating film and the second cylindrical lens grating film；The
The first cylindrical mirror face setting orthogonal with the second cylindrical mirror face of the second cylindrical lens grating film of one cylindrical lens grating film, the first cylindrical lens grating film with
It is filled by default refractive index glue in region between second cylindrical lens grating film.By the way that the first cylindrical mirror face is orthogonal with the second cylindrical mirror face
Setting, forms orthogonal column mirror grating, compared with spheric grating, is not imaged blind area, and can produce high quality 360 degree are three-dimensional
Image can also make 4D pictures, while can also substitute spheric grating and make 360 degree of circulation stereo patterns, can be used as vertical
Body grating makes bore hole stereotome, can be used as the critical component for constituting various bore hole stereotomes.By in the first cylindrical mirror light
Area filling between grid film and the second cylindrical lens grating film presets refractive index glue, and orthogonal column mirror grating integration, knot may be implemented
Structure is compact, transport and use easy to produce.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of orthogonal column mirror grating provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the first cylindrical lens grating film in a kind of orthogonal column mirror grating provided in an embodiment of the present invention；
Fig. 3 be in a kind of orthogonal column mirror grating provided in an embodiment of the present invention first cylindrical lens grating film as longitudinal direction grating
Structural schematic diagram；
Fig. 4 is the structural schematic diagram of the second cylindrical lens grating film in a kind of orthogonal column mirror grating provided in an embodiment of the present invention；
Fig. 5 be in a kind of orthogonal column mirror grating provided in an embodiment of the present invention second cylindrical lens grating film as horizontal raster
Structural schematic diagram；
Fig. 6 is a kind of structural schematic diagram of orthogonal column mirror grating provided in an embodiment of the present invention；
Fig. 7 is a kind of external structure schematic diagram of orthogonal column mirror grating provided in an embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it should be noted that term "center", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of the description embodiment of the present invention and simplifies to describe, not indicating or implying the indicated device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to the embodiment of the present invention.In addition,
Term " first ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in embodiments of the present invention.
Since stereotome is more and more universal in the prior art, in the making material of stereotome, 3 D grating is must
Indispensable, and spheric grating in the prior art, because it has transmission photographic fog, is usually used to make to produce stereotome
Simple cycle pattern type of making comparisons is three-dimensional, the problem of making complicated image, by the spherical crown outer profile on spheric grating surface
It is again all very high to be cut to rectangular technology difficulty and cost, in the embodiment of the present invention to solve the above problems, provide one kind can be with
Solve the problems, such as that spheric grating has gap and can not form the orthogonal column mirror grating of complicated image.
Before the orthogonal column mirror grating provided in the narration embodiment of the present invention in detail, to being arrived involved in the embodiment of the present invention
, the noun being likely to occur carry out description below：
Grating three-dimensional picture refers to the bore hole grating three-dimensional picture made of one-dimensional grating, when stereotome rotates certain angle
After degree, stereo-picture can not be seen.
360 degree of stereotomes refer to the bore hole grating three-dimensional picture made of two-dimensional grating, when stereotome is rotated by 360 °
When, still it can be seen that stereotome.
360 degree of space patterns refer to the cycle pattern made of two-dimensional grating, still it can be seen that vertical when being rotated by 360 °
Body pattern.
One-dimensional grating includes column mirror grating and slit grating.Two-dimensional grating is also known as 3 D grating, including：Spheric grating and
Orthogonal column mirror grating.
As shown in Figure 1, an embodiment of the present invention provides a kind of orthogonal column mirror gratings, including：First cylindrical lens grating film 1 and
Two cylindrical lens grating films 2；First cylindrical lens grating film 1 and the second cylindrical lens grating film 2 are stacked.The first of first cylindrical lens grating film 1
The setting orthogonal with the second cylindrical mirror face of the second cylindrical lens grating film 2 of cylindrical mirror face 11, and described at least one face of orthogonal column mirror grating
For plane；It is filled by default refractive index glue 3 in region between first cylindrical lens grating film 1 and the second cylindrical lens grating film 2.
Specifically, the first cylindrical mirror face in the embodiment of the present invention refers to the cylindrical mirror face for including in the first cylindrical lens grating film 1, the
Two cylindrical mirror faces refer to the cylindrical mirror face for including in the second cylindrical lens grating film 2.Be arranged orthogonal with the second cylindrical mirror face refers in the first cylindrical mirror face
The busbar in the first cylindrical mirror face and the busbar in the second cylindrical mirror face are mutually perpendicular to.Fig. 1 is from the side of the first cylindrical lens grating film 1
The side view arrived, due to the first cylindrical mirror face 11 setting orthogonal with the second cylindrical mirror face in the embodiment of the present invention, so in Fig. 1 simultaneously
The second cylindrical mirror face is not embodied, and actually the second cylindrical mirror face is that the setting direction along the first cylindrical mirror face extends, i.e. the second cylindrical mirror face
Busbar it is parallel with the setting direction in the first cylindrical mirror face.
The orthogonal column mirror grating being made of the first cylindrical lens grating film and the second cylindrical lens grating film in the embodiment of the present invention, to protect
Demonstrate,prove its extensively using and it is easy to operate easy to implement in application process, need a face at least by orthogonal column mirror grating to be arranged
For plane, another face is cylindrical mirror face or plane.
Due to the first cylindrical lens grating film and the second cylindrical lens grating film with the use of during, can have seam therebetween
Region between gap, i.e. the first cylindrical lens grating film 1 and the second cylindrical lens grating film 2, to avoid the air in this region to orthogonal column
The function of mirror grating has an impact, also for avoiding the first cylindrical lens grating film 1 and the second cylindrical lens grating film is 2 discrete, position is not solid
Orthogonal column mirror grating caused by calmly can not make picture, the area between the first cylindrical lens grating film 1 and the second cylindrical lens grating film 2
It is filled by default refractive index glue 3 in domain.The first cylindrical lens grating film 1 and the second cylindrical mirror can be ensured by being filled with default refractive index glue both
Region stable refractive index between Grating Film 2, it can also be ensured that the first cylindrical lens grating film 1 and the second cylindrical lens grating film 2 become one
Body, the orthogonal column mirror grating for contributing to integrated performance to stablize.It should be noted that not to the first cylindrical mirror in the embodiment of the present invention
The overlay order of Grating Film and the second cylindrical lens grating film is defined, as long as the two is attached to be formed by default refractive index glue
One.
The refractive index of the default refractive index glue used in the embodiment of the present invention is less than corresponding first cylindrical mirror in the first cylindrical mirror face
Corresponding second cylindrical mirror of refractive index and the second cylindrical mirror face refractive index, wherein the specific value of default refractive index can be according to need
It is configured, details are not described herein in the embodiment of the present invention.
The orthogonal column mirror grating provided in the embodiment of the present invention includes：First cylindrical lens grating film and the second cylindrical lens grating film；
The first cylindrical mirror face setting orthogonal with the second cylindrical mirror face of the second cylindrical lens grating film of first cylindrical lens grating film, the first cylindrical lens grating film
It is filled by default refractive index glue in region between the second cylindrical lens grating film.By by the first cylindrical mirror face and the second cylindrical mirror face just
Setting is handed over, orthogonal column mirror grating is formed, compared with spheric grating, is not imaged blind area, can produce high quality 360 degree are vertical
Body image can also make 4D pictures, while can also substitute spheric grating and make 360 degree of circulation stereo patterns, can conduct
3 D grating makes bore hole stereotome, can be used as the critical component for constituting various bore hole stereotomes.By in the first cylindrical mirror
Area filling between Grating Film and the second cylindrical lens grating film presets refractive index glue, and orthogonal column mirror grating integration may be implemented,
Transport and use compact-sized, easy to produce.
On the basis of the above embodiments, the structural schematic diagram of the first cylindrical lens grating film such as Fig. 2 institutes in the embodiment of the present invention
Showing, the first cylindrical lens grating film 1 includes the first cylindrical mirror face 11 and the first plane 12, and the first cylindrical mirror face 11 corresponds to the first cylindrical mirror 13,
First plane 12 corresponds to the chip base 14 of the first cylindrical lens grating film 1.Wherein, 14 thickness of chip base is d1, the curvature of the first cylindrical mirror 13
Radius is Rv, the refractive index of the first cylindrical mirror material is nz1, the thickness of the first cylindrical mirror is dz1.When the first cylindrical lens grating film 1 is orthogonal
When in column mirror grating as longitudinal grating, corresponding longitudinal direction optical grating construction as shown in figure 3, in Fig. 3 each bar shaped be longitudinal grating
Item, corresponding one first cylindrical mirror.Each first cylindrical mirror all same in Fig. 3, the first cylindrical mirror of each two are mutually compact arranged, and every
The width of a first cylindrical mirror is the pitch of longitudinal grating, is denoted as Pv。
Correspondingly, in the embodiment of the present invention structural schematic diagram of the second cylindrical lens grating film as shown in figure 4, the second column mirror grating
Film 2 includes the second cylindrical mirror face 21 and the second plane 22, and the second cylindrical mirror face 21 corresponds to the second cylindrical mirror 23, and the second plane 22 corresponds to
The chip base 24 of second cylindrical lens grating film 2.Wherein, 24 thickness of chip base is d2, the radius of curvature of the second cylindrical mirror 23 is Rh, the second cylindrical mirror
The refractive index of material is nz2, the thickness of the second cylindrical mirror is dz2.It is indulged when the first cylindrical lens grating film 1 is used as in orthogonal column mirror grating
When to grating, the second cylindrical lens grating film 2 is used as horizontal raster, corresponding horizontal raster structure such as Fig. 5 in orthogonal column mirror grating
Shown, each bar shaped is lateral light grizzly bar in Fig. 5, corresponding one second cylindrical mirror.Each second cylindrical mirror all same, each two in Fig. 5
Second cylindrical mirror is mutually compact arranged, and the pitch that the width of each second cylindrical mirror is horizontal raster, is denoted as Ph。
Under normal circumstances, the parameter all same of the first cylindrical lens grating film and the second cylindrical lens grating film, the longitudinal direction only formed
The grizzly bar placement direction of grating and horizontal raster differs, this is because the cylindrical mirror face thickness of cylindrical lens grating film relative to focal length and
Yan Jun is smaller, and the focussing disparity of the first cylindrical lens grating film and the second cylindrical lens grating film can be ignored.
Since there is the first cylindrical lens grating film 1 first cylindrical mirror face 11 and the first plane 12, the second cylindrical lens grating film 2 to have the
Two cylindrical mirror faces 21 and the second plane 22, therefore when the first cylindrical mirror face 11 of the first cylindrical lens grating film 1 and the second cylindrical lens grating film 2
Second cylindrical mirror face, 21 orthogonal setting, and when described at least one face of orthogonal column mirror grating is plane, altogether there are two types of structure type,
Two kinds of structure types are specifically described individually below.
On the basis of the above embodiments, the orthogonal column mirror grating provided in the embodiment of the present invention, first cylindrical mirror face
It is contacted with second cylindrical mirror face；
Correspondingly, the region between the first cylindrical mirror face and the second cylindrical mirror face is filled by default refractive index glue.
Specifically, the first structure type provided in the embodiment of the present invention is：First cylindrical mirror of the first cylindrical lens grating film
Face is orthogonal with the second cylindrical mirror face of the second cylindrical lens grating film and contacts；Region between first cylindrical mirror face and the second cylindrical mirror face passes through
Default refractive index glue filling, i.e., as shown in Figure 1.This structure type ensure that the upper and lower surfaces for the orthogonal column mirror grating to be formed
It is plane, can so ensures that orthogonal column mirror grating is easier to be assembled with other components in application.
On the basis of the above embodiments, first cylindrical mirror face is contacted with the chip base of second cylindrical lens grating film；
Correspondingly, the region between first cylindrical mirror face and the chip base of second cylindrical lens grating film passes through described default
Refractive index glue is filled.
Specifically, in the embodiment of the present invention, the structure type of use is the first cylindrical mirror face and the of the first cylindrical lens grating film
The chip base of two cylindrical lens grating films contacts, since the chip base of the second cylindrical lens grating film is equivalent to a tablet, so the first column at this time
Minute surface is equivalent to be contacted with a tablet, and the second cylindrical mirror face of the second cylindrical lens grating film is the face far from the first cylindrical mirror face, is needed
What is ensured is that the first cylindrical mirror face is orthogonal with the second cylindrical mirror face.The orthogonal column mirror grating of this structure type is only flat there are one face
Face, but 360 degree of stereo-pictures of high quality can be still produced, 4D pictures can also be made, while spherical surface can also be substituted
360 degree of circulation stereo patterns of preparing grating can be used as 3 D grating to make bore hole stereotome, can be used as and constitute various bore holes
The critical component of stereotome.Pass through the default refraction of area filling between the first cylindrical lens grating film and the second cylindrical lens grating film
Orthogonal column mirror grating integration, transport and use compact-sized, easy to produce may be implemented in rate glue.
On the basis of the above embodiments, the orthogonal column mirror grating provided in the embodiment of the present invention further includes：Preset thickness
Transparent plate, the first face of transparent plate is bonded setting with the chip base of the first cylindrical lens grating film.
Specifically, as shown in fig. 6, the first face 41 of the transparent plate 4 of preset thickness and the first cylindrical lens grating film 1 in Fig. 6
Chip base 14 fitting setting；
The collimated light beam incident from the second cylindrical lens grating film 2 is through the second cylindrical lens grating film 2, default refractive index glue 3, the first column
It after mirror Grating Film 1 and transparent plate 4, focuses on the second face 42 of transparent plate 4, forms picture.Need exist for explanation
It is that the preset thickness of transparent plate 4 refers to the distance between 4 first face 41 of transparent plate and second face 42.Due to transparent plate 4
The second face be light beam focusing surface, the preset thickness D of transparent plate 4 here2Then by the refractive index of the first cylindrical mirror, the second cylindrical mirror
Refractive index, the radius of curvature of the first cylindrical mirror, the radius of curvature of the second cylindrical mirror and the first cylindrical lens grating film chip base thickness determine
It is fixed.In the embodiment of the present invention, can as needed it set the refractive index of the first cylindrical mirror, radius of curvature to the refraction with the second cylindrical mirror
Rate, radius of curvature are identical or different, are not especially limited to this in the embodiment of the present invention.
Preferably, when the refractive index of corresponding first cylindrical mirror in the first cylindrical mirror face and the second cylindrical mirror face corresponding second
The refractive index of cylindrical mirror is identical, and when the radius of curvature of the first cylindrical mirror is identical as the radius of curvature of the second cylindrical mirror, transparent plate it is pre-
If thickness can be according to the refractive index of the first cylindrical mirror, the refractive index of default refractive index glue, the radius of curvature of the first cylindrical mirror and the
The chip base thickness of one cylindrical lens grating film determines, is only illustrated by taking such situation as an example below.
The orthogonal column mirror grating provided in the embodiment of the present invention includes transparent plate, and collimated light beam is existed by transparent plate
Picture is formed on second face of transparent plate, and the picture formed is the picture of 360 degree of observables, realizes 360 degree of observables
Picture making.
On the basis of the above embodiments, the preset thickness in the embodiment of the present invention is determined especially by following formula：
Wherein, D2For the preset thickness, D1For the focusing thickness of the orthogonal column mirror grating, d1For first cylindrical mirror
The chip base thickness of Grating Film, n are the relative index of refraction of first cylindrical mirror and the default refractive index glue, r1For first column
The radius of curvature of mirror, nz1For the refractive index of first cylindrical mirror, ndFor the refractive index of the default refractive index glue.
Specifically, it since the orthogonal column mirror grating provided in the embodiment of the present invention is in focusing, is wrapped in focal path
The chip base and transparent plate of the first cylindrical lens grating film are included, so being needed at this time in the preset thickness for determining transparent plate
The chip base thickness of the first cylindrical lens grating film is removed on the basis of the focusing thickness of orthogonal column mirror grating, and orthogonal column mirror grating
Thickness is focused then to be determined according to the radius of curvature of the relative index of refraction and the first cylindrical mirror of the first cylindrical mirror and default refractive index glue.This
In inventive embodiments mode that is a kind of effective and can quickly determining is provided for the determination of preset thickness.
On the basis of the above embodiments, the grating pitch that the first cylindrical lens grating film in the embodiment of the present invention is formed is more than
Or the grating pitch formed equal to second cylindrical lens grating film.
Specifically, the orthogonal column mirror grating provided in the embodiment of the present invention can make four-dimensional stereotome, and (i.e. 4D schemes
Piece), as shown in fig. 7, for the external structure schematic diagram of orthogonal column mirror grating, an orthogonal grid 5 of orthogonal column mirror grating in Fig. 7
It is equivalent to a 4D pixel, width is the pitch P of longitudinal gratingv, it is highly the pitch P of horizontal rasterh, P under normal conditionsv=
Ph.In order to accommodate more multiple image, longer time segment is formed, orthogonal column mirror grating can be arranged to Ph>Pv, at this moment synthesize
The time series frame number of 4D pictures is more than the parallax sequence number for forming stereo-picture.
On the basis of the above embodiments, in the orthogonal column mirror grating in the embodiment of the present invention, the folding of refractive index glue is preset
It penetrates rate and is less than 1.4.
Specifically, it since the refractive index n for the cylindrical mirror for constituting cylindrical lens grating film is typically larger than 1.5, then needs to use refractive index
First cylindrical lens grating film and the second cylindrical lens grating film are bonded together by the default refractive index glue less than 1.4, ensure cylindrical mirror with it is pre-
If relative index of refraction between refractive index glue is not more than 1.3, it can preferably realize that collimated light beam focuses to the of transparent plate
On two faces, picture is formed.
On the basis of the above embodiments, the default refractive index glue used in the embodiment of the present invention is specifically as follows ultraviolet solid
Change glue, after filling the region between the first cylindrical lens grating film and second cylindrical lens grating film using uv-curable glue, uses
Ultra violet lamp uv-curable glue, so that ultra-violet curing adhesive curing, makes the first cylindrical lens grating film and second cylindrical lens grating film
Form one.
The orthogonal column mirror grating provided in the embodiment of the present invention, compact-sized, easy to produce and use can be applied to 4D figures
Piece, 360 degree of stereo-pictures, 360 degree of space patterns make.It can be compatible with 3 D grating simultaneously and make ordinary stereo picture, promote
Stereotome practicality and it is universal.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of orthogonal column mirror grating, which is characterized in that including：First cylindrical lens grating film and the second cylindrical lens grating film, described
One cylindrical lens grating film and second cylindrical lens grating film are stacked；
The first cylindrical mirror face setting orthogonal with the second cylindrical mirror face of second cylindrical lens grating film of first cylindrical lens grating film, and
Described at least one face of orthogonal column mirror grating is plane, between first cylindrical lens grating film and second cylindrical lens grating film
Region pass through default refractive index glue filling.
2. orthogonal column mirror grating according to claim 1, which is characterized in that first cylindrical mirror face and second cylindrical mirror
Face contacts；
Correspondingly, the region between first cylindrical mirror face and second cylindrical mirror face is filled by the default refractive index glue.
3. orthogonal column mirror grating according to claim 1, which is characterized in that first cylindrical mirror face and second cylindrical mirror
The chip base of Grating Film contacts；
Correspondingly, the region between first cylindrical mirror face and the chip base of second cylindrical lens grating film passes through the default refraction
Rate glue is filled.
4. orthogonal column mirror grating according to claim 1, which is characterized in that further include：The transparent plate of preset thickness, institute
The first face for stating transparent plate is bonded setting with the chip base of first cylindrical lens grating film.
5. orthogonal column mirror grating according to claim 4, which is characterized in that corresponding first cylindrical mirror in first cylindrical mirror face
The refractive index refractive index of the second cylindrical mirror corresponding with second cylindrical mirror face it is identical, and the radius of curvature of first cylindrical mirror with
The radius of curvature of second cylindrical mirror is identical；
Correspondingly, the preset thickness is according to the refractive index of the first cylindrical mirror, radius of curvature of first cylindrical mirror, described pre-
If the chip base thickness of the refractive index of refractive index glue and first cylindrical lens grating film determines.
6. orthogonal column mirror grating according to claim 5, which is characterized in that the preset thickness is especially by following formula
It determines：
D2=D1-d1,
Wherein, D2For the preset thickness, D1For the focusing thickness of the orthogonal column mirror grating, d1For first column mirror grating
The chip base thickness of film, n are the relative index of refraction of first cylindrical mirror and the default refractive index glue, r1For first cylindrical mirror
Radius of curvature, nz1For the refractive index of first cylindrical mirror, ndFor the refractive index of the default refractive index glue.
7. orthogonal column mirror grating according to claim 4, which is characterized in that the grating that first cylindrical lens grating film is formed
Pitch is greater than or equal to the grating pitch that second cylindrical lens grating film is formed.
8. the orthogonal column mirror grating according to any one of claim 1-7, which is characterized in that the default refractive index glue
Refractive index is less than 1.4.
9. the orthogonal column mirror grating according to any one of claim 1-7, which is characterized in that the default refractive index glue tool
Body is uv-curable glue.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679444A (en) * | 2019-03-05 | 2020-09-18 | 邓云天 | Naked eye 3D grating capable of increasing light splitting angle |
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