Opto-Electronic Engineering, Volume. 37, Issue 9, 140(2010)

Approximate Non-diffracting Grating Structured Light and Implementation Method

QU Dan, ZHONG Li-ping, XU Long, CHEN Liang-zhou, and GAN Jiang-hong
Author Affiliations
  • [in Chinese]
  • show less

    A new concept of Approximate Non-diffracting Grating Structured Light (ANGSL) and its implementation method are proposed. ANGSL has characteristics of long focal-depth, narrow strip-width, steady light field, and constant light intensity in certain rang etc. An optics system with a precise triangular-section prism is set up to produce ANGSL.Applying Huygens-Fresnel principle and Kirchhoff theory, theory analysis and calculation are completed. The distribution of the light field is simulated in the non-diffracting range. Experimental results show that experimental data is in good agreement with the theory calculation. According to system parameters, ANGSL is produced with 18 μm strip-width and 570 cm non-diffracting range, whose strip-width and intensity distribution do not change with transmitting distance. Compared with traditional light source, ANGSL has advantages of high resolution and precision in the application of 3D profile measurement.

    Tools

    Get Citation

    Copy Citation Text

    QU Dan, ZHONG Li-ping, XU Long, CHEN Liang-zhou, GAN Jiang-hong. Approximate Non-diffracting Grating Structured Light and Implementation Method[J]. Opto-Electronic Engineering, 2010, 37(9): 140

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Jun. 17, 2010

    Accepted: --

    Published Online: Jan. 5, 2011

    The Author Email:

    DOI:

    CSTR:32186.14.

    Topics