English

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

1068
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
  • Amazemet uses Siemens Xcelerator software for scaling metal 3D printing

    Polish metal 3D printing company Amazemet uses the Xcelerator software combination from industrial manufacturing company Siemens.The spin off company of Warsaw University of Technology is using Siemens workflow management software to develop its metal powder atomizer and 3D printing post-processing equipment.Amazemet was founded in 2016, and its ultrasonic atomization device is capable of producin...

    2024-04-18
    See translation
  • Halloween\Christmas Laser Processing Art Carnival !!

    Chanelink Halloween\Christmas Laser Processing Art CarnivalShow your design talent and win a cool laser engraver cutter.TimeUpload of work and canvassing period: October 25, 2023 - December 25, 2023Winner announcement time : December 29, 2023ContentEligible participant:Laser industry practitioners, enthusiasts, who must be at least 18 years old.Awards:First prize (1...

    2023-10-25
    See translation
  • 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
    See translation
  • Measuring invisible light through an electro-optic cavity

    Researchers have developed a new experimental platform that can measure the light wave electric field captured between two mirrors with sub periodic accuracy. This electro-optical Fabry Perot resonant cavity will achieve precise control and observation of the interaction between light and matter, especially in the terahertz (THz) spectral range. The research results were published in the journal "...

    02-19
    See translation
  • NUBURU acquires Italian laser expert LYOCON

    Recently, NUBURU (NYSE: BURU), a global leader in high-performance blue light laser technology, announced that it has signed a binding term sheet (i.e. "binding agreement") to acquire Italian laser engineering and photonics company Lyocon Srl.According to the announcement, Lyocon's main business is to provide advanced laser sources, precision optical systems, and customized laser platforms for ind...

    5 hours ago
    See translation