CN214751127U - Device based on composite pinhole array and polarization array - Google Patents

Abstract

The utility model discloses a device based on a composite pinhole array and a polarization array, which comprises a display screen, a polarization array I, a polarization array II and a composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding polarization unit I in the polarization array I, the corresponding polarization unit III in the polarization array II and the one-dimensional pinhole, and the one-dimensional image element cannot penetrate through a two-dimensional pinhole adjacent to the corresponding one-dimensional pinhole; the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding polarization unit II in the polarization array I, the polarization unit IV in the polarization array II and the two-dimensional pinhole, and the two-dimensional image element cannot penetrate through the one-dimensional pinhole adjacent to the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into a wide viewing angle and high resolution 3D image in the viewing area.

Description

Device based on composite pinhole array and polarization array

Technical Field

The utility model relates to a 3D shows, more specifically says, the utility model relates to a device based on compound pinhole array and polarization array.

Background

3D display based on integrated imaging, namely integrated imaging 3D display for short, is true 3D display. Compared with the vision-aiding/grating 3D display, the three-dimensional stereoscopic vision-aiding display has the remarkable advantages of no stereoscopic vision fatigue and the like; compared with holographic 3D display, the method has the advantages of relatively small data volume, no need of coherent light source, no harsh environmental requirements and the like. Therefore, the integrated imaging 3D display has become one of the international leading edge 3D display modes at present, and is also the most promising naked-eye true 3D display mode for realizing 3D television. The integrated imaging 3D display based on the composite pinhole array has the advantages of high resolution and the like. However, the integrated imaging 3D display based on the composite pinhole array has the problem that the crosstalk of adjacent image elements in the horizontal and vertical directions causes the horizontal and vertical viewing angles to be inversely proportional to the aperture width. In addition, the integrated imaging 3D display based on the composite pinhole array has the disadvantages that the horizontal and vertical viewing angles are inversely proportional to the number of image elements in the horizontal and vertical directions.

Disclosure of Invention

The utility model provides a device based on compound pinhole array and polarization array, as shown in figure 1, which is characterized in that the device comprises a display screen, a polarization array I, a polarization array II and a compound pinhole array; the display screen, the polarization array I, the polarization array II and the composite pinhole array are arranged in parallel and are correspondingly aligned; the polarization array I is tightly attached to the display screen and is positioned between the display screen and the polarization array II; the polarization array II is closely attached to the composite pinhole array, andthe polarization array I is positioned between the composite pinhole array and the polarization array I; the composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; the one-dimensional pinholes and the two-dimensional pinholes are arranged at intervals in the horizontal and vertical directions; the display screen is used for displaying the one-dimensional image element and the two-dimensional image element, as shown in fig. 3; the one-dimensional image elements and the two-dimensional image elements are arranged at intervals in the horizontal and vertical directions; the polarization array I comprises a polarization unit I and a polarization unit II which are arranged at intervals in the horizontal and vertical directions, as shown in FIG. 4; the polarization array II comprises a polarization unit III and a polarization unit IV which are arranged at intervals in the horizontal and vertical directions, as shown in FIG. 5; the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization directions of the polarization unit I and the polarization unit III are the same, and the polarization directions of the polarization unit II and the polarization unit IV are the same; the pitches of the one-dimensional image element, the two-dimensional image element, the polarization unit I and the polarization unit II are the same; the pitches of the one-dimensional pinhole, the two-dimensional pinhole, the polarization unit III and the polarization unit IV are the same; pitch of the polarizing element IpCalculated from the following formula:

（1）

wherein the content of the first and second substances,qis the pitch of the polarizing element III,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding polarization unit I in the polarization array I, the corresponding polarization unit III in the polarization array II and the one-dimensional pinhole, and the one-dimensional image element cannot penetrate through a two-dimensional pinhole adjacent to the corresponding one-dimensional pinhole; the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding polarization unit II in the polarization array I, the polarization unit IV in the polarization array II and the two-dimensional pinhole, and the two-dimensional image element cannot penetrate through the one-dimensional pinhole adjacent to the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into a wide-view-angle and high-resolution 3D image in a viewing area; horizontal viewing angleθ ₁Vertical viewing angleθ ₂Vertical resolution of odd columnsR ₁Perpendicular to even number columnsStraight resolutionR ₂Horizontal resolution of odd rowsR ₃Horizontal resolution of even rowsR ₄Is composed of

（2）

（3）

（4）

（5）

（6）

Wherein the content of the first and second substances,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,m ₁is the number of one-dimensional pinholes in the odd columns of the composite pinhole array,m ₂is the number of two-dimensional pinholes in an odd number of columns of the composite pinhole array,m ₃is the number of one-dimensional pinholes in the even columns of the composite pinhole array,m ₄is the number of two-dimensional pinholes in even columns of the composite pinhole array,n ₁is the number of one-dimensional pinholes in odd rows of the composite pinhole array,n ₂is the number of two-dimensional pinholes in odd rows of the composite pinhole array,n ₃is the number of one-dimensional pinholes in even rows of the composite pinhole array,n ₄is the number of two-dimensional pinholes in even rows of the composite pinhole array,xis the pitch of a single pixel of the display screen.

Drawings

FIG. 1 is a schematic view of the present invention

FIG. 2 is a schematic structural diagram of the composite pinhole array of the present invention

FIG. 3 is a schematic diagram of the arrangement of the one-dimensional image elements and the two-dimensional image elements according to the present invention

FIG. 4 is a schematic structural diagram of the polarization array I of the present invention

FIG. 5 is a schematic structural diagram of the polarization array II of the present invention

The reference numbers in the figures are:

1. the display screen comprises a display screen, 2, a polarization array I, 3, a polarization array II, 4, a composite pinhole array, 5, a one-dimensional pinhole, 6, a two-dimensional pinhole, 7, a one-dimensional image element, 8, a two-dimensional image element, 9, a polarization unit I, 10, a polarization unit II, 11, a polarization unit III and 12, and a polarization unit VI.

It should be understood that the above-described figures are merely schematic and are not drawn to scale.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description of an exemplary embodiment of the present invention based on a composite pinhole array and polarization array device. It is necessary to point out here that the following examples are only used for further illustration of the present invention, and should not be understood as limiting the scope of the present invention, and those skilled in the art can make some non-essential improvements and modifications to the present invention according to the above-mentioned contents of the present invention, and still fall into the scope of the present invention.

The utility model provides a device based on compound pinhole array and polarization array, as shown in figure 1, which is characterized in that the device comprises a display screen, a polarization array I, a polarization array II and a compound pinhole array; the display screen, the polarization array I, the polarization array II and the composite pinhole array are arranged in parallel and are correspondingly aligned; the polarization array I is tightly attached to the display screen and is positioned between the display screen and the polarization array II; the polarization array II is tightly attached to the composite pinhole array and is positioned between the composite pinhole array and the polarization array I; the composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; one-dimensional pinhole and twoThe fiber needle holes are arranged at intervals in the horizontal and vertical directions; the display screen is used for displaying the one-dimensional image element and the two-dimensional image element, as shown in fig. 3; the one-dimensional image elements and the two-dimensional image elements are arranged at intervals in the horizontal and vertical directions; the polarization array I comprises a polarization unit I and a polarization unit II which are arranged at intervals in the horizontal and vertical directions, as shown in FIG. 4; the polarization array II comprises a polarization unit III and a polarization unit IV which are arranged at intervals in the horizontal and vertical directions, as shown in FIG. 5; the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization directions of the polarization unit I and the polarization unit III are the same, and the polarization directions of the polarization unit II and the polarization unit IV are the same; the pitches of the one-dimensional image element, the two-dimensional image element, the polarization unit I and the polarization unit II are the same; the pitches of the one-dimensional pinhole, the two-dimensional pinhole, the polarization unit III and the polarization unit IV are the same; pitch of the polarizing element IpCalculated from the following formula:

（1）

wherein the content of the first and second substances,qis the pitch of the polarizing element III,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding polarization unit I in the polarization array I, the corresponding polarization unit III in the polarization array II and the one-dimensional pinhole, and the one-dimensional image element cannot penetrate through a two-dimensional pinhole adjacent to the corresponding one-dimensional pinhole; the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding polarization unit II in the polarization array I, the polarization unit IV in the polarization array II and the two-dimensional pinhole, and the two-dimensional image element cannot penetrate through the one-dimensional pinhole adjacent to the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into a wide-view-angle and high-resolution 3D image in a viewing area; horizontal viewing angleθ ₁Vertical viewing angleθ ₂Vertical resolution of odd columnsR ₁Vertical resolution of even columnsR ₂Horizontal resolution of odd rowsR ₃Horizontal resolution of even rowsR ₄Is composed of

（2）

（3）

（4）

（5）

（6）

Wherein the content of the first and second substances,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,m ₁is the number of one-dimensional pinholes in the odd columns of the composite pinhole array,m ₂is the number of two-dimensional pinholes in an odd number of columns of the composite pinhole array,m ₃is the number of one-dimensional pinholes in the even columns of the composite pinhole array,m ₄is the number of two-dimensional pinholes in even columns of the composite pinhole array,n ₁is the number of one-dimensional pinholes in odd rows of the composite pinhole array,n ₂is the number of two-dimensional pinholes in odd rows of the composite pinhole array,n ₃is the number of one-dimensional pinholes in even rows of the composite pinhole array,n ₄is the number of two-dimensional pinholes in even rows of the composite pinhole array,xis the pitch of a single pixel of the display screen.

The pitch of the polarization unit III is 10mm, the aperture widths of the one-dimensional pinholes and the two-dimensional pinholes are 1mm, the distance between the display screen and the composite pinhole array is 10mm, the viewing distance is 100mm, the pitch of a single pixel of the display screen is 1mm, the number of the one-dimensional pinholes in odd columns of the composite pinhole array is 5, the number of the two-dimensional pinholes in odd columns of the composite pinhole array is 5, the number of the one-dimensional pinholes in even columns of the composite pinhole array is 5, the number of the one-dimensional pinholes in odd rows of the composite pinhole array is 5, the number of the one-dimensional pinholes in even rows of the composite pinhole array is 5, and the number of the two-dimensional pinholes in even rows of the composite pinhole array is 5, then the pitch of the polarization unit I is 11mm calculated by the formula (1), the horizontal and vertical viewing angles are both 62 ° as calculated by equation (2), the vertical resolution of the odd-numbered columns is 55 as calculated by equation (3), the vertical resolution of the even-numbered columns is 55 as calculated by equation (4), the horizontal resolution of the odd-numbered rows is 10 as calculated by equation (5), and the horizontal resolution of the even-numbered rows is 10 as calculated by equation (6). In a conventional integrated imaging 3D display, the horizontal and viewing angles are both 6 °, and the vertical resolution of odd columns, the vertical resolution of even columns, the horizontal resolution of odd rows, and the horizontal resolution of even rows are all 10 °.

Claims (1)

1. The device based on the composite pinhole array and the polarization array is characterized by comprising a display screen, a polarization array I, a polarization array II and a composite pinhole array; the display screen, the polarization array I, the polarization array II and the composite pinhole array are arranged in parallel and are correspondingly aligned; the polarization array I is tightly attached to the display screen and is positioned between the display screen and the polarization array II; the polarization array II is tightly attached to the composite pinhole array and is positioned between the composite pinhole array and the polarization array I; the composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes; the one-dimensional pinholes and the two-dimensional pinholes are arranged at intervals in the horizontal and vertical directions; the display screen is used for displaying the one-dimensional image elements and the two-dimensional image elements; the one-dimensional image elements and the two-dimensional image elements are arranged at intervals in the horizontal and vertical directions; the polarization array I comprises a polarization unit I and a polarization unit II, and the polarization unit I and the polarization unit II are arranged at intervals in the horizontal and vertical directions; the polarization array II comprises a polarization unit III and a polarization unit IVThe unit III and the polarization unit IV are arranged at intervals in the horizontal and vertical directions; the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization directions of the polarization unit I and the polarization unit III are the same, and the polarization directions of the polarization unit II and the polarization unit IV are the same; the pitches of the one-dimensional image element, the two-dimensional image element, the polarization unit I and the polarization unit II are the same; the pitches of the one-dimensional pinhole, the two-dimensional pinhole, the polarization unit III and the polarization unit IV are the same; pitch of the polarizing element IpCalculated from the following formula:

（1）

wherein the content of the first and second substances,qis the pitch of the polarizing element III,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding polarization unit I in the polarization array I, the corresponding polarization unit III in the polarization array II and the one-dimensional pinhole, and the one-dimensional image element cannot penetrate through a two-dimensional pinhole adjacent to the corresponding one-dimensional pinhole; the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding polarization unit II in the polarization array I, the polarization unit IV in the polarization array II and the two-dimensional pinhole, and the two-dimensional image element cannot penetrate through the one-dimensional pinhole adjacent to the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into a wide-view-angle and high-resolution 3D image in a viewing area; horizontal viewing angleθ ₁Vertical viewing angleθ ₂Vertical resolution of odd columnsR ₁Vertical resolution of even columnsR ₂Horizontal resolution of odd rowsR ₃Horizontal resolution of even rowsR ₄Is composed of

（2）

（3）

（4）

（5）

（6）

Wherein the content of the first and second substances,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,m ₁is the number of one-dimensional pinholes in the odd columns of the composite pinhole array,m ₂is the number of two-dimensional pinholes in an odd number of columns of the composite pinhole array,m ₃is the number of one-dimensional pinholes in the even columns of the composite pinhole array,m ₄is the number of two-dimensional pinholes in even columns of the composite pinhole array,n ₁is the number of one-dimensional pinholes in odd rows of the composite pinhole array,n ₂is the number of two-dimensional pinholes in odd rows of the composite pinhole array,n ₃is the number of one-dimensional pinholes in even rows of the composite pinhole array,n ₄is the number of two-dimensional pinholes in even rows of the composite pinhole array,xis the pitch of a single pixel of the display screen.

Images