chanelink logo
CHANELINK
Português

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

821
2024-01-24 11:52:41
Ver tradução

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

Recomendações relacionadas

  • The University of Rochester has received nearly $18 million to build the world's highest power laser system

    After receiving a $14.9 million contract from the US Department of Defense (DOD) last month to study the pulse laser effect, the University of Rochester recently received nearly $18 million in funding from the National Science Foundation (NSF) for the key technology design and prototype of the EP-OPAL, also known as the OMEGA EP coupled optical parametric amplifier line (OPAL).EP-OPAL is a new fac...

    2023-09-28
    Ver tradução

  • BLM Group launches a new LT12 laser tube cutting system

    Recently, BLM Group in the United States has launched a new LT12 laser tube system, which performs well in cutting light and heavy pipes and profiles, and can handle materials with a diameter of up to 305 millimeters.According to the company, compared to other similar machines, the LT12 laser tube system reduces cutting time by up to 55% when cutting materials with the same maximum diameter, signi...

    2024-04-18
    Ver tradução

  • Fraunhofer ILT has developed a process for forming hard material components using USP laser technology

    Tools made of hard materials are very wear-resistant, but the tools used to produce these tools are prone to wear and tear. Laser tools are the solution. Researchers at the Fraunhofer Institute for Laser Technology (ILT) have developed a process chain that can use ultra short pulse (USP) lasers to shape and polish hard material components without the need to replace clamping devices.Drills, millin...

    10-17
    Ver tradução

  • Emerging laser technologies for precise manufacturing of multifunctional nanomaterials and nanostructures

    The use of photons to directly or indirectly drive chemical reactions has fundamentally changed the field of nanomaterial synthesis, leading to the emergence of new sustainable laser chemistry methods for manufacturing micro - and nanostructures. The incident laser radiation triggers complex interactions between chemical and physical processes at the interface between solid surfaces and liquid or ...

    2024-08-05
    Ver tradução

  • BluGlass successfully raised $5.87 million to accelerate GaN laser production and delivery

    Recently, BluGlass, a leading global semiconductor development company, successfully completed its stock purchase plan (SPP) and raised $5.87 million in funds (excluding costs). This SPP provides eligible shareholders with the opportunity to subscribe to up to $100000 in new shares of BluGlass at a discounted price of $0.037 per share, along with free additional options. This initiative has gained...

    2024-04-12
    Ver tradução