CN214751137U - Device based on compound gradual change aperture pinhole array - Google Patents

Abstract

The utility model discloses a device based on a composite gradient aperture pinhole array, which comprises a display screen and the composite gradient aperture pinhole array; the one-dimensional pinholes are positioned in odd rows of the composite gradient aperture pinhole array, and the two-dimensional pinholes are positioned in even rows of the composite gradient aperture pinhole array; the horizontal aperture widths of the two-dimensional pinholes in the same row of the composite gradient aperture pinhole array are the same; the horizontal aperture width of the pinholes in the composite gradually-changed aperture pinhole array is gradually reduced from the middle to two sides; reconstructing a one-dimensional 3D image by the one-dimensional image element through the corresponding one-dimensional pinhole; reconstructing a two-dimensional 3D image through the corresponding two-dimensional pinholes by the two-dimensional image elements; the one-dimensional 3D image and the two-dimensional 3D image are combined into one high-resolution 3D image at the viewing area.

Description

Device based on compound gradual change aperture pinhole array

Technical Field

The utility model relates to a 3D shows, more specifically says, the utility model relates to a device based on compound gradual change aperture pinhole 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 existing integrated imaging 3D display device based on the gradient aperture pinhole array can increase the optical efficiency on the premise of not reducing the horizontal viewing angle. However, the existing integrated imaging 3D display device based on the gradient aperture pinhole array still has a bottleneck problem of insufficient 3D resolution.

Disclosure of Invention

The utility model provides a device based on a composite gradient aperture pinhole array, as shown in figure 1, which is characterized by comprising a display screen and a composite gradient aperture pinhole array; the composite gradient aperture pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the composite gradient aperture pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; the one-dimensional pinholes are positioned in odd rows of the composite gradient aperture pinhole array, and the two-dimensional pinholes are positioned in even rows of the composite gradient aperture pinhole array; the display screen is used for displaying the one-dimensional image element and the two-dimensional image element, as shown in fig. 3; one-dimensional image element and two-dimensional image elementRespectively aligning with the one-dimensional pinholes and the two-dimensional pinholes; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal pitch of the two-dimensional pinhole and the two-dimensional image element is equal to the vertical pitch; the horizontal aperture widths of the two-dimensional pinholes in the same row of the composite gradient aperture pinhole array are the same; the horizontal aperture width of the pinholes in the composite gradually-changed aperture pinhole array is gradually reduced from the middle to two sides; the vertical aperture widths of the two-dimensional pinholes in the composite gradient aperture pinhole array are the same; is located in a compound gradient aperture pinhole arrayiHorizontal aperture width of the rows of pinholesH _i Is composed of

（1）

Wherein the content of the first and second substances,pis the pitch of the one-dimensional pinholes,gis the distance between the display screen and the composite gradient aperture pinhole array,lis the distance between the composite gradient aperture pinhole array and the viewer,n ₁is the number of one-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,n ₂is the number of two-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,wis the horizontal aperture width of the pinholes in the middle of the composite gradient aperture pinhole array; reconstructing a one-dimensional 3D image by the one-dimensional image element through the corresponding one-dimensional pinhole; reconstructing a two-dimensional 3D image through the corresponding two-dimensional pinholes by the two-dimensional image elements; the one-dimensional 3D image and the two-dimensional 3D image are combined into a high-resolution 3D image in a viewing area; horizontal viewing angleθVertical 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）

Wherein the content of the first and second substances,m ₁is the number of two-dimensional pinholes in the vertical direction of the composite gradient aperture pinhole array,xis the vertical 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 view of the compound gradient aperture 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

The reference numbers in the figures are:

1. the display screen, 2, compound gradual change aperture pinhole array, 3, one-dimensional pinhole, 4, two-dimensional pinhole, 5, one-dimensional image element, 6, two-dimensional image element.

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

Detailed Description

The following detailed description of an exemplary embodiment of a composite graded aperture pinhole array based device according to the present invention is provided for further details. 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 gradual change aperture pinhole array, as shown in figure 1, its characterized in that, packageThe display screen and the composite gradient aperture pinhole array are included; the composite gradient aperture pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the composite gradient aperture pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; the one-dimensional pinholes are positioned in odd rows of the composite gradient aperture pinhole array, and the two-dimensional pinholes are positioned in even rows of the composite gradient aperture pinhole array; 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 respectively aligned with the one-dimensional pinholes and the two-dimensional pinholes correspondingly; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal pitch of the two-dimensional pinhole and the two-dimensional image element is equal to the vertical pitch; the horizontal aperture widths of the two-dimensional pinholes in the same row of the composite gradient aperture pinhole array are the same; the horizontal aperture width of the pinholes in the composite gradually-changed aperture pinhole array is gradually reduced from the middle to two sides; the vertical aperture widths of the two-dimensional pinholes in the composite gradient aperture pinhole array are the same; is located in a compound gradient aperture pinhole arrayiHorizontal aperture width of the rows of pinholesH _i Is composed of

（1）

Wherein the content of the first and second substances,pis the pitch of the one-dimensional pinholes,gis the distance between the display screen and the composite gradient aperture pinhole array,lis the distance between the composite gradient aperture pinhole array and the viewer,n ₁is the number of one-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,n ₂is the number of two-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,wis the horizontal aperture width of the pinholes in the middle of the composite gradient aperture pinhole array; reconstructing a one-dimensional 3D image by the one-dimensional image element through the corresponding one-dimensional pinhole; reconstructing a two-dimensional 3D image through the corresponding two-dimensional pinholes by the two-dimensional image elements; the one-dimensional 3D image and the two-dimensional 3D image are combined into a high-resolution 3D image in a viewing area; horizontal viewing angleθVertical resolution of odd columnsR ₁Vertical resolution of even columnsR ₂Odd rowsHorizontal resolution ofR ₃Horizontal resolution of even rowsR ₄Is composed of

（2）

（3）

（4）

（5）

Wherein the content of the first and second substances,m ₁is the number of two-dimensional pinholes in the vertical direction of the composite gradient aperture pinhole array,xis the vertical pitch of a single pixel of the display screen.

The horizontal pitch of the one-dimensional pinholes is 10mm, the distance between the display screen and the composite gradient aperture pinhole array is 10mm, the distance between the composite gradient aperture pinhole array and an observer is 990mm, the number of the one-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array is 5, the number of the two-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array is 5, the horizontal aperture width of the pinholes in the middle of the composite gradient aperture pinhole array is 2mm, the number of the two-dimensional pinholes in the vertical direction of the composite gradient aperture pinhole array is 6, the pitch of a single pixel of the display screen is 1mm, the horizontal aperture widths of the one-dimensional pinholes and the two-dimensional pinholes in 1-10 rows of the composite gradient aperture pinhole array are 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 1.8mm, 1.6mm, 1.4mm and 1.2mm, the horizontal viewing angle is 44 degrees as calculated by the formula (2), the vertical resolution of the odd-numbered columns calculated by the equation (3) is 50, the vertical resolution of the even-numbered columns calculated by the equation (4) is 5, and the horizontal resolutions of the odd-numbered rows and the even-numbered rows calculated by the equation (5) are both 10. In a conventional gradient aperture pinhole array-based integrated imaging 3D display, the vertical resolution of odd and even columns is 5, and the horizontal resolution of odd and even rows is 10.

Claims (1)

1. A device based on a composite gradient aperture pinhole array is characterized by comprising a display screen and the composite gradient aperture pinhole array; the composite gradient aperture pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the composite gradient aperture pinhole array comprises one-dimensional pinholes and two-dimensional pinholes; the one-dimensional pinholes are positioned in odd rows of the composite gradient aperture pinhole array, and the two-dimensional pinholes are positioned in even rows of the composite gradient aperture pinhole array; 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 respectively aligned with the one-dimensional pinholes and the two-dimensional pinholes correspondingly; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal pitch of the two-dimensional pinhole and the two-dimensional image element is equal to the vertical pitch; the horizontal aperture widths of the two-dimensional pinholes in the same row of the composite gradient aperture pinhole array are the same; the horizontal aperture width of the pinholes in the composite gradually-changed aperture pinhole array is gradually reduced from the middle to two sides; the vertical aperture widths of the two-dimensional pinholes in the composite gradient aperture pinhole array are the same; is located in a compound gradient aperture pinhole arrayiHorizontal aperture width of the rows of pinholesH _i Is composed of

（1）

Wherein the content of the first and second substances,pis the pitch of the one-dimensional pinholes,gis the distance between the display screen and the composite gradient aperture pinhole array,lis the distance between the composite gradient aperture pinhole array and the viewer,n ₁is the number of one-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,n ₂is the number of two-dimensional pinholes in the horizontal direction of the composite gradient aperture pinhole array,wis the horizontal aperture width of the pinholes in the middle of the composite gradient aperture pinhole array; aThe dimension image element reconstructs a one-dimensional 3D image through the corresponding one-dimensional pinhole; reconstructing a two-dimensional 3D image through the corresponding two-dimensional pinholes by the two-dimensional image elements; the one-dimensional 3D image and the two-dimensional 3D image are combined into a high-resolution 3D image in a viewing area; horizontal viewing angleθVertical 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）

Wherein the content of the first and second substances,m ₁is the number of two-dimensional pinholes in the vertical direction of the composite gradient aperture pinhole array,xis the vertical pitch of a single pixel of the display screen.

Images