Three-dimensional display method and device based on quasi-random constructive interference
A constructive interference, three-dimensional display technology, applied in optics, instruments, electrical components, etc., can solve the problems of phase adjustment error, phase adjustment range less than 2π, waste of light energy, etc., to suppress the generation of secondary diffraction images , The effect of improving the utilization rate of light energy and simplifying the structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] figure 1 A schematic diagram of a three-dimensional display device based on quasi-random constructive interference using three transmissive liquid crystal display panels is given. It consists of a coherent light source 1 , an illumination optical system 2 , an array of amplitude and phase regulators 3 and an array of coherent sub-light source generators 4 . The illumination optical system 2 expands and converts the thin laser beam emitted by the coherent light source 1 into a wide laser beam, and uniformly illuminates the amplitude and phase adjuster array 3 . Amplitude phase adjuster array 3 is made up of first, second, third transmissive liquid crystal panels 5, 6, 7 and first, second, third polarizers 8, 9, 10, the first polarizer 8, the first A transmissive liquid crystal panel 5, a second transmissive liquid crystal panel 6, a second polarizing plate 9, a third transmissive liquid crystal panel 7 and a third polarizing plate 10 are placed close to each other in se...
Embodiment 2
[0040] Combine below figure 1 The given device describes the three-dimensional display method based on quasi-random constructive interference, a three-dimensional display method based on quasi-random constructive interference, which includes the following steps:
[0041] A: Decompose the three-dimensional image 11 into M discrete image points with a certain spatial position and brightness, and use non-periodic division in the decomposition process, so that the positions of the discrete image points are randomly distributed. figure 1 In M=21;
[0042] B: Select a discrete image point m in step A, and set an additional phase Ф for the discrete image point m , the additional phase Ф m Randomly distributed within the range of 0 to 2π;
[0043] C: from figure 1 In the coherent sub-light source array whose spatial position is periodically distributed in the device shown, according to the brightness of the specific discrete image point m selected in step B, a number of coherent s...
Embodiment 3
[0051] Such as figure 2 As shown, if an existing commercialized liquid crystal display is used, each pixel (shown by the dotted line box in the figure) is composed of three sub-pixels 12, 13 and 14, and these three sub-pixels are vapor-deposited with red, green and blue filter light respectively. film, which forms a color image by combining the three primary colors. When the microlens is aligned with each pixel, the center of the optical axis of the microlens coincides with the center of the sub-pixel 13 in the middle, but deviates from the centers of the upper and lower sub-pixels 12 and 14 in the figure. suppose figure 2 The three sub-pixels 12, 13 and 14 respectively correspond to the three primary colors of red, green, and blue, and are illuminated by parallel light. After being converged by the microlens, the three primary color point sources are respectively generated, but the light cones emitted by these point sources will point to different directions. Among them, t...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More