chanelink logo
CHANELINK
English

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

845
2024-01-24 11:52:41
See translation

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

Related Recommendations

  • NASA's laser reflector instrument helps to accurately locate Earth measurements

    The most famous use of GPS satellites is to help people understand their location, whether it is driving cars, ships or planes, or hiking in remote areas. Another important but little-known use is to distribute information to other Earth observation satellites to help them accurately locate measurements of our planet.NASA and several other federal agencies, including the US Space Force, the US Spa...

    2023-12-12
    See translation

  • The team has developed a method for integrating an electro-optic modulator device on the end face of a single-mode fiber optic jumper

    Electro optical modulators (EOMs) are the main components in optical communication networks, which can control the amplitude, phase, and polarization of light through external electrical signals.In order to achieve ultra compact and high-performance EOM, most of today's research focuses on on-chip devices that combine semiconductor technology with state-of-the-art tunable materials. However,...

    2023-08-24
    See translation

  • GZTECH Global Headquarters and Advanced Light Source R&D and Production Base Launch Construction

    On June 10th, the construction of GZTECH's global headquarters and advanced light source research and development production base was launched. Rendering of GZTECH Global Headquarters and Advanced Light Source R&D and Production Base The project is located in Donghu Comprehensive Bonded Zone, with a total construction area of approximately 40000 square meters. It will integrate GZTECH's i...

    06-13
    See translation

  • Reverse Modeling of 3D Scanning Reading in Hong Kong: Production Innovation in the Digital Era

    In the wave of the digital age, Hong Kong, as an international business center, constantly explores the application of new technologies in the manufacturing industry. Among them, 3D scanning and reverse modeling technology is emerging, bringing a new production innovation to the manufacturing industry. This article will explore the application of 3D scanning and reverse modeling in Hong Kong, as w...

    2024-03-30
    See translation

  • Shanghai Institute of Optics and Fine Mechanics has made progress in synchronously pumped ultrafast Raman fiber lasers

    Recently, the research team led by Zhou Jiaqi from the Aerospace Laser Technology and Systems Department of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has made progress in the study of synchronously pumped ultrafast Raman fiber lasers. The related achievements were published in Optics Express under the title "Revealing influence of timing jitter on ultra fast...

    06-07
    See translation