Data Sheet

Cover Glass Selection Guide

The LaserPING module has a mounting hole positioned to simplify fitting an optional cover

glass. This could be used to protect the sensor in certain applications, or to experiment with the

impact of different materials acting as filters on the infrared laser light.

To obtain the best performance, the following rules should be considered for the cover glass:

● Material: PMMA, Acrylic

● Spectral transmittance: T< 5% for λ< 770 nm, T> 90% for λ > 820 nm

● Air gap: 100 µm

● Thickness: < 1mm (the thinner, the better)

● Dimensions: larger than 6 x 8 mm

PCB Dimensions

Revision History

Version 1.0: original release.

LaserPING Rangefinder Module (#28041)

v1.0 1/29/2018 Page 8 of 8