CN111474612A - Cylindrical lens, lens generation method, cylindrical lens array and display device - Google Patents
Cylindrical lens, lens generation method, cylindrical lens array and display device Download PDFInfo
- Publication number
- CN111474612A CN111474612A CN202010326084.3A CN202010326084A CN111474612A CN 111474612 A CN111474612 A CN 111474612A CN 202010326084 A CN202010326084 A CN 202010326084A CN 111474612 A CN111474612 A CN 111474612A
- Authority
- CN
- China
- Prior art keywords
- sub
- lenticular lens
- arc
- radius
- curved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
Abstract
The application discloses a cylindrical lens, a lens generation method, a cylindrical lens array and a display device, wherein the cylindrical lens comprises an arc curved surface, and the arc curved surface comprises a plurality of sub-arc surfaces; wherein the size of each sub-arc surface is greater than or equal to one-half width of the sub-pixel and less than one-third pitch of the cylindrical lens. The cylindrical lens divides or cuts an arc curved surface in a traditional lens system into a plurality of sub-arc surfaces, when light passes through the sub-arc surfaces, the light is under-focused, but the light can point to or be positioned at the same position, the focusing point is increased, the focusing depth is also increased, and when the visual angle is changed, the brightness of the cylindrical lens can be kept stable. In addition, the focus point is closer to the size of the sub-pixels, so that transition among the sub-pixels is smoother, moire fringes can be effectively reduced, and the display effect of the 3D image is enhanced.
Description
Technical Field
The invention relates to the technical field of naked eye 3D, in particular to a lenticular lens, a lens generation method, a lenticular lens array and a display device.
Background
The stereoscopic image technology has been developed for over a hundred years, and as the technology is advanced, the stereoscopic image technology is new and mature. With the application of various fields, the application level and data volume of 3D stereoscopic images have been explosively growing, such as entertainment games, enterprise advertisements, home pcs and even electronic medical imaging technologies. The 3D stereoscopic image is mainly divided into two modes of wearing glasses and naked eye stereoscopic effect. The glasses type stereoscopic image technology can view stereoscopic images only by wearing the auxiliary tool, although a better three-dimensional effect can be achieved, the auxiliary tool needs to be worn by everyone to view the stereoscopic images, the long-time wearing of the auxiliary tool can increase the burden of glasses, and discomfort is caused to a user. However, the naked eye type stereoscopic image technology can view the stereoscopic image without wearing any auxiliary tool, and can provide simultaneous viewing for multiple people. Currently, the naked eye type stereoscopic image technology can be divided into three types, namely, Barrier type (Barrier), lenticular lens technology and directional light source (directional backlight), wherein the lenticular lens technology is the most practical and popular.
The lenticular (L enticulator L ens) technology, also known as lenticular or micro-lenticular 3D technology, is based on the principle of adding a layer of lenticular lenses in front of a liquid crystal display, such that the image plane of the liquid crystal display is at the focal plane of the lenses, such that the pixels of the image underneath each lenticular lens are divided into several sub-pixels, such that the lenses project each sub-pixel in a different direction, such that the display is viewed from different angles by both eyes, so that different sub-pixels are seen, but the gaps between the pixels are enlarged, so that the sub-pixels cannot be simply superimposed.
Disclosure of Invention
In view of the above, the present invention provides a lenticular lens, a lenticular lens generating method, and a display device, so as to overcome the problems that moire fringes are easily generated in the lenticular lens technology in the prior art, an image is changed when an angle of view is changed, and a focusing depth is small, thereby causing poor 3D image effect.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the invention provides a cylindrical lens, which comprises an arc curved surface, a cylindrical lens and a cylindrical lens, wherein the arc curved surface comprises a plurality of sub-arc surfaces; wherein the size of each sub-arc surface is greater than or equal to one-half width of a sub-pixel and less than one-third pitch of the lenticular lens.
Alternatively,
the curvature radius of each sub-arc surface is larger than one-half curvature radius of the arc curved surface and smaller than four-fifths curvature radius of the arc curved surface.
Alternatively,
the arc curved surface is formed by processing a cylindrical lens mold, wherein the cylindrical lens mold comprises a plurality of arc surface structures, each arc surface structure is used for forming one sub-arc surface, the plurality of arc surface structures of the cylindrical lens mold are formed by cutting the whole arc surface of the cylindrical lens mold by a cutting tool, the curvature radius of the sub-arc surfaces is equal to the arc radius of the tool tip of the cutting tool, and the size of the whole arc surface of the cylindrical lens mold is larger than or equal to that of the arc curved surface.
Alternatively,
the radius of curvature of each sub-arc surface is the same.
Alternatively,
the cutting tool comprises a diamond tool, a cubic boron nitride tool or a tungsten steel tool.
Alternatively,
the arc curved surface is formed by hot-embossing an optical polymer material.
Alternatively,
the optical polymer material is one of acrylic resin, polycarbonate, organic silica gel, poly terephthalic acid resin, ultraviolet light curing glue or epoxy resin.
In the lenticular lens according to the embodiment of the present invention, the circular arc curved surface in the conventional lens system is divided or cut into a plurality of sub-curved surfaces, and when light passes through the sub-curved surfaces, the light is under-focused, but the light is directed or positioned at the same position, the focus point is increased, the focus depth is also increased, and when the viewing angle is changed, the brightness is kept unchanged (as shown in fig. 2). In addition, the focus point is closer to the size of the sub-pixels, so that transition among the sub-pixels is smoother, moire fringes can be effectively reduced, and the display effect of the 3D image is enhanced.
The embodiment of the invention also provides a preparation method of the lenticular lens, which comprises the following steps:
determining the size, curvature radius and number of the stator arc surfaces according to the parameters of the arc curved surfaces;
and processing the cylindrical lens material by adopting a cylindrical lens mould according to the size, the curvature radius and the number to form the sub-arc surfaces with corresponding number.
Alternatively,
further comprising preparing the lenticular lens mold; wherein preparing the lenticular lens module comprises:
preparing the whole cambered surface of the cylindrical lens mold;
and determining a notch coordinate on the whole cambered surface, and cutting the notch coordinate by adopting a cutting tool to form notches, wherein each notch forms a cambered surface structure, and the curvature radius of each cambered surface structure is equal to the arc radius of the tool nose of the cutting tool.
Alternatively,
the notch coordinates comprise an X-axis coordinate, a Y-axis coordinate and a Z-axis coordinate; the step of cutting the notch coordinates by using a cutting tool to form the notch comprises the following steps:
and the cutting tool moves along the Y axis at the position determined by the X axis coordinate and the Z axis coordinate, and cuts at the Y axis coordinate.
The method for preparing the cylindrical lens can quickly prepare the cylindrical lens, and the prepared cylindrical lens is accurate.
The embodiment of the invention also provides a cylindrical lens array which comprises a plurality of cylindrical lenses, wherein each cylindrical lens is arranged at intervals according to the lens interval.
In the lenticular lens array according to the embodiment of the present invention, because the lenticular lens is adopted, when light passes through the sub-curved surfaces, the light is under-focused, but the light is directed or positioned at the same position, the focus point is increased, the focus depth is also increased, and when the viewing angle is changed, the brightness of the lenticular lens array is kept stable (as shown in fig. 2). In addition, the focus point is closer to the size of the sub-pixels, so that transition among the sub-pixels is smoother, moire fringes can be effectively reduced, and the display effect of the 3D image is enhanced.
The embodiment of the invention also provides a display device, which comprises a display module and the columnar lens array; the display module is arranged on the focal plane of the cylindrical lens array.
According to the display device provided by the embodiment of the invention, the lenticular lens is adopted, so that the display device can effectively reduce the generation of moire fringes, and further the display effect of a 3D image is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a diagram of one embodiment of a prior art cylindrical lens with a curved circular surface and spectral imaging;
FIG. 2 is a diagram of one embodiment of a lenticular lens and spectral imaging of the present invention;
FIG. 3 is a diagram of one embodiment of a lenticular lens of the present invention;
FIG. 4 is a diagram of one embodiment of a lenticular lens of the present invention;
fig. 5 is a diagram illustrating an embodiment of a method for manufacturing a lenticular lens according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The lenticular lens is a plano-convex lens, which can be regarded as a combination of a convex lens and a plane mirror, and generally includes a curved lenticular lens and a planar lenticular lens, wherein the lenticular lens generally includes a light guide element and a lens element, and the lens element is disposed at the upper end of the light guide element and is spherical. The geometry of the lenticular lens includes a prismatic or cylindrical shape having a constant cylindrical cross section, and a pyramidal or conical shape having a tapered cross section of the light guiding element. It will be appreciated that in the case of prismatic or pyramidal shapes, a myopic spherical surface of the lens element may be achieved. As shown in fig. 1, the conventional lenticular lens is generally a spherical or spherical lens, i.e. the lens element is spherical, and has a small focal point on the sub-pixel on the surface of the TFT panel, when the viewing angle changes, the position of the focal point will move with the change of the angle, and the light of each sub-pixel is emitted from different angles, thereby achieving the desired 3D light splitting effect. However, a variation in the viewing angle causes a fluctuation in the brightness (as shown in fig. 1). In which brightness fluctuations cause a series of problems such as moire patterns appearing on a white screen, image variations when viewing angles are changed, and small depth of focus. However, these problems affect the quality of the 3D image.
In view of the above problems, the present invention provides a lenticular lens, as shown in fig. 2 to 3, including an arc curved surface 20, where the arc curved surface 20 includes a plurality of sub-arc surfaces 202; wherein the size of each sub-arc surface 202 is greater than or equal to one-half width of the sub-pixel and less than one-third pitch of the lenticular lens.
In particular, there are typically some relevant parameters for a lenticular lens, including pitch (pitch), radius of curvature (radius of curvature), and thickness, among others. The pitch of the lenticular lens is the size of the circular arc surface (as shown in fig. 3).
In the present embodiment, the lenticular lens includes a circular arc surface 20, which is cut into a plurality of small segments, i.e. sub-arc surfaces 202, wherein the sub-arc surfaces 202 are combined to form a complete circular arc surface 20. The size (i.e. the length of the arc) of each sub-arc surface may be equal or unequal as long as the size is greater than or equal to one-half width of the sub-pixel and less than one-third pitch of the lenticular lens; i.e., 1/2W ≦ S < 1/3P, where W represents the pitch of the sub-pixels, S represents the size of the sub-arc, and P represents the pitch of the lenticular lenses.
In the lenticular lens according to the embodiment of the present invention, the circular arc curved surface in the conventional lens system is divided or cut into a plurality of sub-curved surfaces, and when light passes through the sub-curved surfaces, the light is under-focused, but the light is directed or positioned at the same position, the focus point is increased, the focus depth is also increased, and when the viewing angle is changed, the brightness of the lens is kept stable (as shown in fig. 2). In addition, the focus point is closer to the size of the sub-pixels, so that transition among the sub-pixels is smoother, moire fringes can be effectively reduced, and the display effect of the 3D image is enhanced.
In addition, the working principle of the lenticular lens is as follows: as shown in fig. 2, assuming that the focal point of the arc curved surface 20 is on the surface of the sub-pixel 21, the sub-arc surface 202 is arranged along the arc curved surface 20, the arc radius of the sub-arc surface 202 is smaller than that of the arc curved surface 20, the focal point thereof will fall at 203, and when the sub-pixel 21 is reached, the sub-arc surface is slightly out of focus, becoming a relatively large focal point 204, and the focal points of other sub-pixels also fall at 204. The defocused focus of the sub-arc 202 avoids focusing on a dark area that does not emit light, and when the viewing angle changes, the position of the focus moves with the angle change, but the brightness is more stable than that of a conventional lens.
The curvature radius Rs of the sub-arc 202 cannot be too large or too small, too large (Rs >4/5R L) results in insufficient defocus effect, and too small (Rs <1/2R L) results in too large defocus focus, and in addition, the width dimension S of the sub-arc 202 needs to be matched with the resolution of the picture, namely the size of the sub-pixel, and too large (S >1/3P) affects the resolution, and too small (S <1/2W) increases the processing difficulty.
In one embodiment, as shown in fig. 3, the radius of curvature of each sub-arc surface 202 is greater than one-half the radius of curvature of the curved arc surface and less than four-fifths the radius of curvature of the curved arc surface.
Specifically, the surface of the lenticular lens is a cylindrical surface, and the cross section of the lenticular lens is a circular arc, wherein the circular arc has a radius of curvature, and the radius of curvature is mainly used to describe the degree of curve curvature change at a certain position on the curve, for example, the degree of curvature is the same at all positions on the circle, so the radius of curvature is the radius of the circle. It can be seen that, in order to accurately determine each sub-arc surface, it is important to determine the curvature radius of each sub-arc surface.
In the present embodiment, each sub-arc surface 202 has the same radius of curvature, which is greater than the radius of curvature of one-half circular arc surface and less than the radius of curvature of four-fifths circular arc surface, i.e. 1/2RL≤Rs＜4/5RLWherein R isLThe radius of curvature of the circular arc surface is shown, and Rs represents the radius of curvature of the subarc surface. The curvature radius of each sub-arc surface is determined, so that the cutting can be more accurate when the sub-arc surfaces are cut, the light can be ensured to be more pointed to the same position when passing through each sub-arc surface, and the brightness of the light is more stable when the visual angle is changed.
In one embodiment, as shown in fig. 4, the sub-arcs of the lenticular lens may be convex inward (i.e. in contrast to fig. 2, 3, where the sub-arcs of fig. 2 and 3 are convex outward), as long as the refractive index of the convex portions (grey) is greater than that of the concave portions (white). In this way, the shape of the lenticular lens can be more diversified.
In one embodiment, the curved surface is formed by processing a lenticular lens mold, wherein the lenticular lens mold comprises a plurality of arc structures, each arc structure is used for forming a sub-arc surface, the plurality of arc structures of the lenticular lens mold are formed by cutting the whole arc surface of the lenticular lens mold by using a cutting tool, the radius of curvature of the sub-arc surface is equal to the radius of the arc surface of the tool tip of the cutting tool, and the size of the whole arc surface of the lenticular lens mold is larger than or equal to that of the curved surface.
When the arc curved surface is cut to form each sub-arc surface, the arc curved surface is mainly formed by using a die with a plurality of arc surface structures. The plurality of cambered surface structures of the die are formed by cutting the whole cambered surface of the die by adopting a cutting tool, wherein the cutting tool is provided with a tool tip circular arc radius, so that the curvature radius of the cambered surface structure is equal to the tool tip circular arc radius of the cutting tool, and the curvature radius of the cambered surface structure is the curvature radius of the sub-cambered surface. By adopting the method, the curvature radius of each sub-arc surface can be accurately determined, so that the sub-arc surfaces are formed.
In one embodiment, the cutting tool comprises a diamond tool, a cubic boron nitride tool, or a tungsten steel tool.
In one embodiment, the curved surface is replicated by hot embossing the optical polymer material.
Specifically, the arc curved surface is mainly manufactured by hot pressing technology and optical polymer materials, and the optical polymer materials are good in performance, easy to mold and small in processing difficulty on one hand, and the cylindrical lens manufactured by the optical polymer materials is good in performance on the other hand.
Optionally, the optical polymer material is one of acrylic resin, polycarbonate, silicone, poly (terephthalic acid) resin, uv-curable glue or epoxy resin.
According to the lenticular lens, the embodiment of the invention also provides a preparation method of the lenticular lens.
A method for manufacturing a lenticular lens, as shown in fig. 5, comprises the following steps:
step S502, determining the size, curvature radius and number of the stator cambered surfaces according to the parameters of the arc cambered surfaces;
wherein, the parameters of the arc curved surface mainly comprise pitch P and curvature radius RLAnd the like. The size S of the sub-arc surfaces, the radius of curvature Rs, and the number (i.e., number) of the sub-arc surfaces, which are determined according to the limitation in the embodiment of the lenticular lens of the present invention, are determined, and then the number of the sub-arc surfaces is determined according to the determined size S and the radii of curvature Rs and P. It should be understood that the sub-arc surface size S, the radius of curvature Rs and the number of sub-arc surfaces may be a plurality of values, i.e. the corresponding cutting manner is also a plurality; in practice, the user can select the optimal solution according to his needs (e.g. most convenient cutting, best effect after cutting, etc.).
And step S504, processing the cylindrical lens material by using a cylindrical lens mould according to the size, the curvature radius and the number to form sub-arc surfaces with corresponding number.
In the present embodiment, after determining the post-size S and the curvature radii Rs and P to determine the number of sub-curved surfaces, the corresponding lenticular lens module may be selected to generate a lenticular lens having sub-curved surfaces formed.
The method for preparing the cylindrical lens can quickly prepare the cylindrical lens, and the prepared cylindrical lens is accurate.
In one embodiment, further comprising preparing the lenticular lens mold; wherein preparing the lenticular lens module comprises:
preparing the whole cambered surface of the cylindrical lens mold;
determining a notch coordinate on the whole cambered surface, and cutting the notch coordinate by using a cutting tool to form a notch, wherein each notch forms a cambered surface structure, and the curvature radius of each cambered surface structure is equal to the arc radius of a tool nose of the cutting tool.
Specifically, when the whole arc surface of the cylindrical lens mold is cut to form each arc surface structure, coordinates of the whole arc surface may be labeled (that is, a predetermined coordinate is given), for example, the whole arc surface is placed in a three-dimensional space, and the whole arc surface is labeled by the three-dimensional coordinates; and then determining a notch coordinate according to parameters such as the size S of the sub-arc surface of the cylindrical lens, the curvature radius Rs, the number of the sub-arc surfaces and the like, wherein the notch coordinate refers to a position coordinate needing to be cut, cutting is carried out on the position by adopting a cutting tool to form a notch, each notch can form an arc surface structure, and each arc surface structure is used for generating the sub-arc surface of one cylindrical lens.
In a specific embodiment, the notch coordinates include an X-axis coordinate, a Y-axis coordinate, and a Z-axis coordinate; the step of cutting the incision coordinate by using the cutting tool to form the incision comprises the following steps:
the cutting tool moves along the Y axis at the position determined by the X axis coordinate and the Z axis coordinate, and cuts at the Y axis coordinate.
Specifically, the whole cambered surface is marked by XYZ-axis coordinates, then each notch coordinate is determined, wherein each notch coordinate comprises an X-axis coordinate, a Y-axis coordinate and a Z-axis coordinate, and the position of each notch on the whole cambered surface can be determined according to the coordinates. When the cutting is needed, the cutting tool can be enabled to move uniformly along the Y axis at the position determined by the X axis coordinate and the Z axis coordinate until the position of the Y axis coordinate is reached, and then the cutting is carried out.
Wherein, the notch coordinate is mainly determined by the size S of the sub-arc surface and the curvature radius Rs of the sub-arc surface. In addition, in determining the notch coordinates, it is necessary to predetermine the positions and the number of points on the entire arc, where the number of points is equal to the number (or number) of arc structures (i.e., sub-arcs) plus 2.
According to the lenticular lens and the preparation method of the lenticular lens, the embodiment of the invention also provides a lenticular lens array.
A lenticular lens array includes a plurality of lenticular lenses, wherein each of the lenticular lenses is disposed at intervals of a lens pitch.
The lenticular lens array refers to a device formed by arranging a plurality of lenticular lenses according to a certain rule. Generally, each lenticular lens in the lenticular lens array is parallel and uniformly spaced. The lens pitch refers to a distance between the respective lenticular lenses. In addition, a lenticular lens array may refer to a plurality of lenticular lenses arranged in a particular pattern, the lenticular lenses and their particular arrangement being designed such that when viewed from slightly different angles, different images are visible. The image seen through the lenticular array is given the illusion of depth, or appears to change or move when the image is viewed at different angles.
In the lenticular lens array according to the embodiment of the present invention, because the lenticular lens is adopted, when the light passes through the sub-curved surfaces, the light is under-focused, but the light is directed or positioned at the same position, the focus point is increased, the focus depth is also increased, and when the viewing angle is changed, the brightness is kept unchanged (as shown in fig. 2). In addition, the focus point is closer to the size of the sub-pixels, so that transition among the sub-pixels is smoother, moire fringes can be effectively reduced, and the display effect of the 3D image is enhanced.
According to the lenticular lens, the preparation method of the lenticular lens and the lenticular lens array, the embodiment of the invention also provides a display device.
A display device comprises a display module and a cylindrical lens array; the display module is arranged on the focal plane of the cylindrical lens array.
The display device may be a television display device, a mobile phone, or the like.
According to the display device provided by the embodiment of the invention, the lenticular lens is adopted, so that the display device can effectively reduce the generation of moire fringes, and further the display effect of a 3D image is enhanced.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A cylindrical lens comprises a circular arc curved surface, and is characterized in that the circular arc curved surface comprises a plurality of sub-arc surfaces; wherein the size of each sub-arc surface is greater than or equal to one-half width of a sub-pixel and less than one-third pitch of the lenticular lens.
2. The lenticular lens of claim 1, wherein each of the sub-arc surfaces has a radius of curvature that is greater than one-half of the radius of curvature of the circular arc surface and less than four-fifths of the radius of curvature of the circular arc surface.
3. The lenticular lens of claim 1 or 2, wherein the curved circular surface is formed by a lenticular lens mold, wherein the lenticular lens mold comprises a plurality of curved structures, each of the curved structures is used to form one of the sub-curved surfaces, the plurality of curved structures of the lenticular lens mold are formed by cutting the entire curved surface of the lenticular lens mold with a cutting tool, the radius of curvature of the sub-curved surfaces is equal to the radius of the nose circular arc of the cutting tool, and wherein the size of the entire curved surface of the lenticular lens mold is greater than or equal to the size of the curved circular surface.
4. The lenticular lens of claim 3, wherein the radius of curvature of each of the sub-curved surfaces is the same.
5. The lenticular lens of claim 3, wherein the cutting tool comprises a diamond tool, a cubic boron nitride tool, or a tungsten steel tool.
6. The lenticular lens according to claim 4 or 5, wherein the curved circular arc surface is replicated by hot embossing an optical polymer material.
7. The lenticular lens according to claim 6, wherein the optical polymer material is one of acrylic resin, polycarbonate, silicone, a poly-terephthalic acid-based resin, an ultraviolet-curable glue or an epoxy resin.
8. A method of producing a lenticular lens according to any one of claims 1 to 7, comprising the steps of:
determining the size, curvature radius and number of the stator arc surfaces according to the parameters of the arc curved surfaces;
and processing the cylindrical lens material by adopting a cylindrical lens mould according to the size, the curvature radius and the number to form the sub-arc surfaces with corresponding number.
9. The method of producing a lenticular lens according to claim 8, further comprising producing the lenticular lens mold; wherein preparing the lenticular lens module comprises:
preparing the whole cambered surface of the cylindrical lens mold;
and determining a notch coordinate on the whole cambered surface, and cutting the notch coordinate by adopting a cutting tool to form a notch, wherein each notch forms a cambered surface structure, and the curvature radius of each cambered surface structure is equal to the arc radius of the tool nose of the cutting tool.
10. The method of manufacturing a lenticular lens according to claim 9, wherein the notch coordinates include an X-axis coordinate, a Y-axis coordinate, and a Z-axis coordinate; the step of cutting the notch coordinates by using a cutting tool to form the notch comprises the following steps:
and the cutting tool moves along the Y axis at the position determined by the X axis coordinate and the Z axis coordinate, and cuts at the Y axis coordinate.
11. A lenticular lens array comprising a plurality of lenticular lenses according to any one of claims 1 to 7, wherein each of the lenticular lenses is arranged at a lens pitch interval.
12. A display device comprising a display module and the lenticular lens array of claim 11; the display module is arranged on the focal plane of the cylindrical lens array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326084.3A CN111474612A (en) | 2020-04-23 | 2020-04-23 | Cylindrical lens, lens generation method, cylindrical lens array and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010326084.3A CN111474612A (en) | 2020-04-23 | 2020-04-23 | Cylindrical lens, lens generation method, cylindrical lens array and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111474612A true CN111474612A (en) | 2020-07-31 |
Family
ID=71761659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010326084.3A Pending CN111474612A (en) | 2020-04-23 | 2020-04-23 | Cylindrical lens, lens generation method, cylindrical lens array and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111474612A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614864A (en) * | 2015-02-15 | 2015-05-13 | 张家港康得新光电材料有限公司 | Three-dimensional display device |
| CN204666841U (en) * | 2015-03-24 | 2015-09-23 | 天津维富达科技有限公司 | Imitative compound eye type micro fresnel lens array |
| CN105425324A (en) * | 2015-12-17 | 2016-03-23 | 沈阳理工大学 | Manufacturing and imaging analysis of non-uniform curved microlens array |
| CN106199780A (en) * | 2016-08-31 | 2016-12-07 | 张家港康得新光电材料有限公司 | Optical element and Optical devices |
| CN106597676A (en) * | 2016-12-30 | 2017-04-26 | 张家港康得新光电材料有限公司 | Optical image separation element and 3D display device equipped with same |
-
2020
- 2020-04-23 CN CN202010326084.3A patent/CN111474612A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614864A (en) * | 2015-02-15 | 2015-05-13 | 张家港康得新光电材料有限公司 | Three-dimensional display device |
| CN204666841U (en) * | 2015-03-24 | 2015-09-23 | 天津维富达科技有限公司 | Imitative compound eye type micro fresnel lens array |
| CN105425324A (en) * | 2015-12-17 | 2016-03-23 | 沈阳理工大学 | Manufacturing and imaging analysis of non-uniform curved microlens array |
| CN106199780A (en) * | 2016-08-31 | 2016-12-07 | 张家港康得新光电材料有限公司 | Optical element and Optical devices |
| CN106597676A (en) * | 2016-12-30 | 2017-04-26 | 张家港康得新光电材料有限公司 | Optical image separation element and 3D display device equipped with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10698217B2 (en) | Diffractive backlight display and system | |
| US11307414B2 (en) | Near-eye display system | |
| CN111512213B (en) | Augmented reality optical system with pinhole mirror | |
| CN112088141B (en) | Diffraction grating for beam redirection | |
| US10007122B2 (en) | Three-dimensional display substrate, its Manufacturing method and three-dimensional display device | |
| US10890694B2 (en) | Optical system for head-mounted display system | |
| CN101688977B (en) | A diffractive beam expander and a virtual display based on a diffractive beam expander | |
| CN109791228B (en) | Virtual reality display | |
| US9244284B2 (en) | Microreplicated film for autostereoscopic displays | |
| KR102021166B1 (en) | Linear fresnel lens sheet, transmissive display device and roll-shaped mold for producing linear fresnel lens sheet | |
| EP3326358B1 (en) | Multiview camera | |
| EP3822693A2 (en) | Head-mounted display | |
| US20230204843A1 (en) | Diffraction light guide plate and display device including the same | |
| CN110869834A (en) | Fixed focus image light guide with zoned diffraction grating | |
| CN112558307A (en) | Improved manufacturing of virtual and augmented reality systems and components | |
| GB2473636A (en) | Multiple view display comprising lenticular lens having regions corresponding to two different centres of curvature | |
| CN111474612A (en) | Cylindrical lens, lens generation method, cylindrical lens array and display device | |
| US11150471B2 (en) | Diffusers for head up displays | |
| Tan et al. | Low-crosstalk super multi-view lenticular printing using triplet lenticular lens | |
| CN207114878U (en) | A kind of virtual reality goggles and wear display device | |
| CN107144968B (en) | Virtual reality device | |
| US11747525B1 (en) | Self-aligned lens assembly for head-mounted displays | |
| JP2006173046A (en) | Surface light source element and three dimensional display using it | |
| JP2023085691A (en) | Wind-field hmd device, wide-field lens, manufacturing method for wide-field lens and hmd system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200731 |