chanelink logo
CHANELINK
한국어

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

384
2024-01-24 11:52:41
번역 보기

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

관련 추천

  • Overview: High throughput preparation of alloy composition design in additive manufacturing

    Researchers from the New Materials Technology Research Institute of Beijing University of Science and Technology and the Beijing Modern Transportation Metal Materials and Processing Laboratory reported a review of high-throughput preparation of alloy composition design in additive manufacturing. The relevant research is titled "High throughput preparation for alloy composition design in additive m...

    2024-07-08
    번역 보기

  • Breaking the limits of optical imaging by processing trillions of frames per second

    Pursuing higher speed is not just exclusive to athletes. Researchers can also achieve such feats through their findings. The research results of Professor Liang Jinyang and his team from the National Institute of Science (INRS) have recently been published in the journal Nature Communications.The team located at the INRS É nergie Mat é riaux T é l é communications resea...

    2024-04-08
    번역 보기

  • Breakthrough 8-channel 915nm SMT pulse laser, ushering in a new era of laser radar applications

    The 8-channel 915nm SMT pulse laser can enhance the long-range laser radar system of autonomous vehicle;An 8-channel QFN package certified by AEC-Q102, featuring high performance and efficiency, utilizing proprietary wavelength stabilization technology from AMS Osram;Based on over 20 years of experience in pulse laser technology.Shanghai, China, August 8, 2024- AMS, a leading global optical soluti...

    2024-08-09
    번역 보기

  • Smaller laser facilities use new methods to break records before proton acceleration

    The Helmholtz Dresden Rosendorf Center (HZDR) has made significant progress in laser plasma acceleration. By adopting innovative methods, the research team successfully surpassed previous proton acceleration records significantly.They obtained energy for the first time that can only be achieved in larger facilities so far. As reported by the research team in the journal Nature Physics, promising a...

    2024-05-15
    번역 보기

  • Southeast University makes new progress in quantum efficiency research of van der Waals light-emitting diodes

    Recently, Professor Ni Zhenhua from the School of Electronic Science and Engineering at Southeast University, Professor Lv Junpeng from the School of Physics, Professor Liu Hongwei from the School of Physical Science and Technology at Nanjing Normal University, and Professor Zhou Peng from the School of Microelectronics at Fudan University collaborated to propose a van der Waals light-emitting dio...

    2024-10-28
    번역 보기