Content for Laser

Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light. Alternatively, temporal coherence can be used to produce pulses of light with a broad spectrum but durations as short as a femtosecond ("ultrashort pulses").

DiY Mini Laser Engraver

“Whats up, In this instructable, I am making an Awesome mini laser engraver from old DVD writers. It’s very interesting project for any electronics hobbyist & Engineers. You can use this laser engraver machine to make any kind of design …

A Bolt IoT-based Automobile Anti-theft System

“This project is developed to provide a user with a solution to track their vehicle in real-time if someone tries to steal or break into it. Cars are slowly becoming a necessity now owing to the pandemic situation prevalent all …

Laser Tachometer

“A small hand-held tachometer that uses a laser to show how fast an object is rotating in revolutions per minute (rpm). This Laser Tachometer is a rebuild of Elite Worm’s Build a Laser Tachometer. Both the hardware and software …

Laser Engraving With DIY Arduino Scara Robot

“In this tutorial I will show you how I converted my DIY 3D Printed SCARA robot arm that I built in one of my previous videos to work as a laser engraver. You can watch the video following video or …

P-CNC Laser Engraver and Pen Plotter

“In this project, I’d like to share how to build a homemade 3 axis P-CNC machine with its frame and supports made of PVC pipes and acrylic sheets. It has two operation modes: pen plotting and laser engraving …

Low-cost seismograph using optical mouse

“Hack an optical mouse to detect seismic vibrations with a simple laser source, a hacked mouse lens and a physical cantilever arm setup. The “seis-mouse-meter” was part of the 2020 Frugal Science course (frugalscience.org), where we were challenged with …

How to Make Powerfull Laser Engraver

“Hello Guys Whats up, In this instructable, I am making an Awesome mini laser engraver from old DVD writers. It’s very interesting project for any electronics hobbyist & Engineers. You can use this laser engraver machine to make any kind …

Project  PnPAssist

PnPAssist

“PnPAssist is a tool that helps you to assemble PCB boards manually. The PnPAssist is an open source innovative CNC table that position the next SMT component with a proper orientation for you to make hand assembly a lot more …

Rotary CNC Laser Engraver

“I created an inovative laser engraver mashine with equipment available on my faculty. Because I was really pleased with the result I wanted to share the process and the final creation. Fundamental principal of the device is quite inovative. Instead …

Laser Projected Asteroids on the ESP32

“A version of the classic arcade game Asteroids using a laser projector running on the ESP32. I’ve created a version of the classic arcade game Asteroids and got it running on the ESP32. The game is displayed using a …