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A variety of range compensating lens designs for active optical systems
Author(s): Adam Phenis; Jason Mudge
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Paper Abstract

A range compensating lens design in the return channel for active optical systems, e.g., range finders and LiDARs, is detailed and several examples analyzed using raytrace methods. This proposed range compensating lens, which reduces the “one over range squared” attenuation, is described by Mudge [Appl. Opt., (2019)]. The motivation of the lens is to reduce the return signal with targets (objects) relatively near and boost the signal at far range targets by combining lens elements in parallel rather than in series, as typically done. Using the technique provided in the reference, to include field angle details, a designer can develop a lens requiring a detector with less dynamic range and/or extend the far range limit while maintaining the minimum target distance. We provide discussion to implement this approach along with a variety of examples of this range compensating lens to cover design techniques needed for the return lens desired and include some penalties incurred.

Paper Details

Date Published: 30 August 2019
PDF: 13 pages
Proc. SPIE 11125, ODS 2019: Industrial Optical Devices and Systems, 111250J (30 August 2019); doi: 10.1117/12.2540198
Show Author Affiliations
Adam Phenis, AMP Optics, LLC (United States)
Jason Mudge, Golden Gate Light Optimization LLC (United States)


Published in SPIE Proceedings Vol. 11125:
ODS 2019: Industrial Optical Devices and Systems
Ryuichi Katayama; Yuzuru Takashima, Editor(s)

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