chanelink logo
CHANELINK
日本語

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

490
2024-01-24 11:52:41
翻訳を見る

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

関連のおすすめ

  • Automated methods for background estimation in laser spectroscopy

    A new automated method for spectral background estimation in laser spectroscopy ensures the accuracy of quantitative analysis with minimal human intervention.When using laser-induced breakdown spectroscopy in spectral analysis, scientists may encounter various obstacles. The most common challenge faced by scientists when conducting elemental analysis is to optimize the interaction between the lase...

    2023-11-24
    翻訳を見る

  • Progress makes laser based imaging simpler and more three-dimensional

    a. b. Schematic diagram of PACTER system calibration and imaging program. BT, beam trap; DAQ, data acquisition unit; HWP, half wave plate; PBS, polarization beam splitter; ER, traverse the relay. The difference between the two modes is highlighted by a black dashed box. c. Schematic diagram of a single component ultrasonic transducer manufactured on ER. d. The ultrasound transducer detected 1D P...

    2023-12-05
    翻訳を見る

  • AWOL Vision will showcase cutting-edge laser projectors and award-winning innovations at CEDIA 2023

    AWOL Vision has announced that it will be showcasing the latest innovations in home entertainment at this year's CEDIA Expo in Denver, Colorado from September 7-9.At the show, AWOL Vision will debut the new LVV-3000 Pro and LVV-3500 Pro laser projectors with Dolby Vision and Control4 integration, and will showcase the latest Vanish TV, The TV recently received the prestigious "IFA 2023 Best of the...

    2023-09-08
    翻訳を見る

  • Bitsensing, a South Korean LiDAR solution provider, successfully raised 180 million yuan in funding

    Recently, Bitsensing, a leading provider of advanced radar solutions in South Korea, announced the successful completion of Series B financing, with a financing amount of up to $25 million (approximately RMB 181.6 million).This major investment is led by a series of well-known venture capital firms and strategic investors, which not only demonstrates Bitsensing's leading position in the radar tech...

    2024-06-27
    翻訳を見る

  • Opton Laser commercializes ultra-high contrast third-order autocorrelators

    Recently, Opton Laser International, a supplier specializing in photonics, is currently distributing manufacturer UltraFast Innovations (UFI)'s ultra-high contrast third-order autocorrelator Tundra++. The new generation Tundra aims to characterize the temporal intensity distribution and quality of laser pulses with particularly high sensitivity.This is to avoid the harmful effects caused by the hi...

    2023-08-31
    翻訳を見る