This paper presents a non-intrusive, non-contact object distance mapping sensor using an Electronically Controlled Variable Focus Lens (ECVFL). The proposed sensor is a free-space-based optical sensor that uses ECVFL-based agile optics to direct light from a object that requires terrain height mapping. The presented compact design makes the proposed sensor ideal for use in environments where laser illuminated objects are in a hazardous environment such as in environments with radiation, heat, cold, harmful machine parts, etc. The proposed design uses a few optical components and smart detection optics for making its object distance/terrain measurements. The presented sensor can find potential remote sensing applications in ground and space vehicle maneuvering, machine parts inspection and in chemical, transportation and aerospace industries.

Date Published: 26 May 2011
PDF: 7 pages
Proc. SPIE 8026, Photonic Applications for Aerospace, Transportation, and Harsh Environment II, 80260D (26 May 2011); doi: 10.1117/12.885957

Published in SPIE Proceedings Vol. 8026:
Photonic Applications for Aerospace, Transportation, and Harsh Environment II
Alex A. Kazemi; Bernard Kress; Eric Y. Chan; Nabeel A. Riza; Lothar U. Kempen, Editor(s)