chanelink logo
CHANELINK
Русский

A Large Angle Color Holographic 3D Display System Based on Color LCD Grating

829
2024-01-24 11:52:41
Посмотреть перевод

Holographic display technology provides the ultimate solution for true 3D display, with enormous potential in augmented reality and virtual reality. However, the color and viewing angle of holographic 3D displays mainly depend on the wavelength of the laser and the pixel size of the current spatial light modulator. The inevitable color difference and narrow viewing angle in conventional systems seriously affect the holographic display effect, hindering the application of holographic 3D display in many fields.

In a new paper published in "Light: Science and Applications", a group of scientists led by Professor Qiang Hua Wang from Beihang University in China and their colleagues have developed a 3D display system with a large viewing angle based on color liquid crystal gratings. The proposed system displays a color perspective of 50.12 º without any color difference.

Beihang researchers use specially designed color liquid crystal gratings with the same diffraction angle to perform secondary diffraction on incident RGB light, expanding the viewing angle through secondary diffraction. Color liquid crystal gratings have three different spacing regions in a liquid crystal unit, corresponding to incident light of different wavelengths. In addition, a method for generating chromatic aberration free holograms has been proposed, which, in conjunction with color liquid crystal gratings, achieves large angle color display. By using the proposed system, 3D color objects can be vividly reconstructed without color difference and viewed from a large perspective.

The reported system solves the problems of small viewing angle and severe color difference in traditional holographic 3D display systems, and has good display effects and broad application prospects in medical, industrial and other fields.

Source: Laser Net

Связанные рекомендации

  • XLight raises $40 million in financing to develop new EUV light sources

    xLight, a US startup aiming to commercialize particle accelerator driven free electron lasers (FELs) for use in semiconductor production, says it has raised $40 million in a series B round of venture funding.The Palo Alto, California, firm said that the support would enable it to develop a prototype next-generation light source capable of emitting at extreme ultraviolet (EUV) wavelengths that are ...

    07-23
    Посмотреть перевод

  • 2D photoelectric neuron array can achieve broadband and low loss optical nonlinearity accessible to ambient light

    Light can calculate functions during propagation and interaction with structured materials, with fast speed and low energy consumption. The use of all optical neural networks for general computing requires an optical activation layer with nonlinear dependence on the input. However, existing optical nonlinear materials either have slow speeds or very weak nonlinearity at the level of natural light ...

    2024-03-20
    Посмотреть перевод

  • BLT launches a new BLT-S800 metal PBF 3D printer equipped with 20 lasers

    Bright Laser Technologies (BLT), a global leader in additive manufacturing headquartered in China, has launched a new BLT-S800 metal 3D printer with a super large construction volume (800 mm x 800 mm x 600 mm) and a 20 fiber laser configuration, which can shorten part delivery time and achieve rapid customer manufacturing.The BLT-S800 system supports titanium alloy, aluminum alloy, high-temperatur...

    2023-10-19
    Посмотреть перевод

  • Lithuanian and Japanese researchers develop silver nanolaser

    Recently, researchers from Kaunas University of Technology (KTU) in Lithuania and the Tsukuba National Institute of Materials Science in Ibaraki, Japan, have collaborated to successfully develop a new type of nanolaser based on silver nanocubes.Although its structure is small and can only be observed through high-power microscopes, its potential application prospects are broad, and the research te...

    2024-12-24
    Посмотреть перевод

  • Researchers use liquid metal and laser ablation to create stretchable micro antennas

    Researchers have developed a new method of making micro stretchable antenna with water gel and liquid metal. These antennas can be used for wearable and flexible wireless electronic devices to provide links between devices and external systems for power transmission, data processing, and communication.Using our new manufacturing method, we have demonstrated that the length of liquid metal antennas...

    2023-09-19
    Посмотреть перевод