Laser power control circuit of discrete values in time and in magnitude for triangulation-based range finders

Juergen Klicker; Rainer Helmes

doi:10.1117/12.169375

15 March 1994 Laser power control circuit of discrete values in time and in magnitude for triangulation-based range finders

Juergen Klicker, Rainer Helmes

Author Affiliations +

Proceedings Volume 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII; (1994) https://doi.org/10.1117/12.169375
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

A laser power control circuit of discrete values in time and in magnitude is advantageous in order to increase the achievable measurement rate of PSD-based triangulation sensors. The exponential behavior of this power control circuit causes a very fast adaptation of the transmitted laser power into the desired range while the tendency to oscillate is decreased by the pre-defined time steps.

Citation Download Citation

Juergen Klicker and Rainer Helmes "Laser power control circuit of discrete values in time and in magnitude for triangulation-based range finders", Proc. SPIE 2065, Optics, Illumination, and Image Sensing for Machine Vision VIII, (15 March 1994); https://doi.org/10.1117/12.169375

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