phy217 - instruments - spectrographs - the grating equation - the grating
Laser collimation
Problem: you own a great lens, but it doesn’t fit onto that new camera you just bought. Solution: an inexpensive lens adapter. A simple (and practical) adapter allows you to mix and match different brands of cameras and lenses.
Collimating lens
Problem: you own a great lens, but it doesn’t fit onto that new camera you just bought. Solution: an inexpensive lens adapter. A simple (and practical) adapter allows you to mix and match different brands of cameras and lenses.
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Collimatedbeam
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I plan on making a replica of a Las-7 Dagger from the game Helldivers 2, and I want to know if it might be dangerous to look at the spot on the wall. For this build I plan on using an 80w COB light, and to imitate the fact that its a laser weapon in the game, id like to collimate the light so that it looks like a laser. But now I'm worried that an 11,000 lumen 1 inch dot on a wall might be dangerous to look at. does collimating the light add any more danger then it would otherwise already be? I'm aware that a 11,000 lumen led that's smaller then my palm is already dangerous for how bright it is, but does collimating it into just a dot make it more dangerous? For reference, the dot would be roughly the same size as the LED itself, the collimating lens would be the only lens in the system.