English

Diffractive optical elements: the behind the scenes hero of structured light laser technology

100
2024-04-10 14:45:47
See translation

In today's rapidly developing technological era, structured light laser technology has become an important tool in the fields of 3D measurement and image capture. The core of this technology lies in a magical device called Diffractive Optical Elements (DOE), which can precisely control and shape laser beams, creating various complex light patterns. But what exactly is DOE? How does it work? Let Holoor and everyone explore the world of DOE in depth, unveiling its mysterious veil.

What is a diffractive optical element?
Simply put, diffractive optical elements are like a special transparent window that can precisely shape and control the laser beam passing through it through diffraction effects - the bending phenomenon of light when passing through small holes or slits. By creating a controlled phase delay along the path of the laser beam, DOE can generate diffraction rays with preset orders, thereby generating any desired beam pattern.

How does DOE generate structured light?
Structured light, in short, is light that is integrated into a specific pattern for three-dimensional measurement and analysis of objects. To generate this type of structured light, DOEs typically adopt a periodic grating like structure design, which allows them to generate any desired order distribution from simple lines to complex grids. This flexibility and precision make DOE an indispensable part of structured light laser technology.

Unique advantages of DOE
A significant advantage of DOEs is that they are not sensitive to the center of the beam size, which means that regardless of how the diameter of the beam changes, DOEs can maintain consistency in their shaping effect. This sturdy and durable feature, combined with their ability to easily integrate into structured light laser sources, enables DOEs to demonstrate high reliability and efficiency in various application scenarios.

Beam shaping diffusers and other applications
In addition to traditional periodic grating structures, DOE also includes other types of components such as beam shaping diffusers. These diffusers can generate multiple beam patterns such as lines, linear arrays, grids, and even more unique distributions required for special structured light applications, such as in tube sensing. These diverse beam modes further expand the application range of structured light laser technology, from industrial manufacturing to medical imaging, and then to safety monitoring and other fields.

conclusion
Diffractive optical elements are the behind the scenes heroes in structured light laser technology. They not only provide an efficient and reliable way to generate and control structured light, but also open up new possibilities for various 3D measurement and image capture tasks. With the continuous advancement of technology, we can expect Holoor DOE to bring more innovation and breakthroughs in the future, helping us explore and understand the world around us in a new way. Under the guidance of light, the unknown and complex three-dimensional world will gradually become clear and visible, revealing its unique beauty and secrets.

Source: Sohu

Related Recommendations
  • Laser Photonics Corporation sets high growth strategy for 2025

    Recently, laser cleaning equipment manufacturer Laser Photonics Corporation (LPC) announced its ambitious 2025 growth strategy, emphasizing innovation, strategic investment, and market expansion. LPC Executive Vice President John Armstrong stated:With a solid foundation laid in 2024, we will enter 2025 with clear momentum and a firm focus on growth. The progress we made last year - strengthening...

    01-20
    See translation
  • Shanghai Optics and Machinery Institute has made new progress in evaluating the anti laser damage performance of thin film optical components using different laser damage testing protocols

    Recently, the research team of the High Power Laser Element Technology and Engineering Department of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has made new progress in evaluating the laser damage resistance and damage mechanism of 532nm thin film polarizers using different laser damage test protocols. The related achievements were published in Optical Materi...

    2024-04-25
    See translation
  • Stratasys Ltd. receives a $120 million investment from Fortissimo Capital

    It is reported that Stratasys Ltd. (NASDAQ: SSYS) announced on February 2nd that it has received a $120 million investment from Fortissimo Capital, an Israeli private equity firm. This transaction directly purchases 11.65 million newly issued shares at a price of $10.30 per share, representing a premium of 10.6% compared to the company's closing price on January 31, 2025. As of press time, it has ...

    02-05
    See translation
  • Shanghai Institute of Optics and Fine Mechanics has made progress in composite material based picosecond mirrors

    Recently, the High Power Laser Element Technology and Engineering Department of the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has made progress in the research of composite based picosecond mirrors. The related research results were published in Optics and Laser Technology under the title of "Hybrid Material Based Mirror Coatings for Picosed Laser Applications"....

    2024-07-12
    See translation
  • MIT research enables 3D printers to recognize new materials

    According to scientists at MIT, mathematical formulas developed by MIT researchers and other institutions can significantly improve the sustainability of 3D printing.Issues with 3D printing of plastics3D printers typically use mass-produced polymer powders to print parts, which are consistent and predictable, but also difficult to recycle.Other more environmentally friendly options also exist and ...

    2024-04-18
    See translation