I built a Laser Telescope Blaster!!
A high powered laser + a DIY reverse telescope makes a device that burns things much further away than any of my other laser creations!
social media sillyness:
shorts channel: / @styropyroshorts
instagram: / styro.drake
patreon: / styropyro
backup channel and b-side videos: / @drakeanthony1155
discord: / discord
In the video I start by going over the reasons of why my previous laser blasters couldn't burn things from far away. In order to do long distance burning, I needed something with higher beam quality/smaller emitter size. I settled on a 1W 405nm laser diode. It is significantly less powerful than my 200W laser bazooka, but the high quality beam it makes can travel much straighter than those huge diode arrays.
A single spatial mode laser diode wasn't enough though. I built a beam expander (just a Galilean telescope in reverse) to widen the beam leaving the aperture so it could stay tighter over a distance. It was cool getting to use old technology on a device like this.
For the burning demos I started with some balloons. I found that the laser had to be very stable in order to pop balloons from a distance. I explain in the video that unlike a real ghunn, the laser needs time for the target to accumulate energy so it heats up significantly. With a tripod I was able to pull off some long distance balloon pops, but it became very difficult past 100ft. The most distant shot I made was from about 150ft.
For the boomy targets, I used a mix of several chemicals that don't don't like to be together, added charcoal to make it dark for laser absorption, and bound it into a puck with red gum.
Big thank you to Esco Optics for supplying the lenses used on the telescopes! escooptics.com
Watch video I built a Laser Telescope Blaster!! online without registration, duration hours minute second in high quality. This video was added by user styropyro 28 August 2018, don't forget to share it with your friends and acquaintances, it has been viewed on our site 3,311,84 once and liked it 85 thousand people.