chanelink logo
CHANELINK
Polski

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

489
2024-01-24 11:52:41
Zobacz tłumaczenie

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

Powiązane rekomendacje

  • The research team has solved decades long challenges in the field of microscopy

    When observing biological samples under a microscope, if the medium in which the objective lens is located is different from the sample, the light beam will be interfered with. For example, when observing a water sample with a lens surrounded by air, the light bends more strongly in the air around the lens than in water.This interference can cause the measured sample depth to be smaller than the a...

    2024-04-27
    Zobacz tłumaczenie

  • Aerotech announces new control features for laser scanning heads

    Aerotech has upgraded the performance of AGV laser scanning heads through powerful controller functions to enhance scanner control (ESC). The new ESC function of the Automation 1-GL4 2-axis laser scanning head driver is a completely passive control loop enhancement function that ensures higher accuracy in the most dynamic motion.With the increasing demand for higher output laser technology in vari...

    2024-06-04
    Zobacz tłumaczenie

  • Photon automation expands through new laser application laboratories

    Photon Automation, Inc., headquartered in Greenfield, Indiana, has been committed to providing automated laser technology solutions since 2000. The company is pleased to announce the opening of its state-of-the-art laser application laboratory in Farmington Hills, Michigan. This 7400 square foot facility will be led by renowned laser physicist Dr. Najah George, who has over 35 years of extensive e...

    2023-09-01
    Zobacz tłumaczenie

  • The United States is expected to use "AI+lasers" to deal with space debris in the future

    Due to the increasing threat of space debris in low Earth orbit around the Earth, space agencies around the world are becoming increasingly concerned about this. According to a new study funded by the National Aeronautics and Space Administration (NASA), it may be possible to send space debris that may be at risk of colliding with orbiting spacecraft to safer orbits through a laser network deploye...

    2023-10-20
    Zobacz tłumaczenie

  • BenQ Launches V5000i 4K RGB Laser TV Projector

    Display solution brand BenQ recently launched the 4K RGB laser TV projector V5000i.The V5000i focuses on providing the pinnacle of innovation, unparalleled color accuracy, and excellent audio quality, elevating the home theater world to unprecedented heights. It is the perfect replacement for large screen televisions, particularly suitable for well lit spaces such as spacious living areas, "the co...

    2023-10-10
    Zobacz tłumaczenie