And sometimes you discover too late that the tape measure you brought isn’t long enough. Decades ago, Leica, an industry leader in cameras and optics technology, developed a laser distance ...

This device can measure accurately to within 1/16 inch with a maximum distance of up to 400 feet. It also has a built-in camera with an adjustable zoom so users can locate the laser at a long ...

Measuring the distance using lasers is a mainstay of ... Gao] and [Li-Shiuan Peh] used an infra-red (IR) line laser and the camera on a smartphone. Their prototype cost only $49 since they used ...

[Shane Ormonde] recently learned how to measure distance using just a webcam ... It’s a pretty simple concept. The camera and laser are placed parallel to each other at a known distance ...