>> |
Anonymous
First of all, the photo is shit and you need to GTFO. Second, you are looking at interference patterns. Laser light is collimated, so it's wave properties are quite visible. Most likely what caused them is the coating on the lens elements, or perhaps the elements themselves. When the laser light enters the lens most of it goes right through the element, but some is reflected back outwards. When that reflected light hits the outer surface of the lens coating on the way out, again most of it goes through and a little is reflected. That light that is reflected again is now traveling in the same direction of the original beam, but is out of phase with it. In places where the two beams are exactly half a phase out of sync, you will see a dark band. Since this effect happens with every surface the light passes through, you will get numerous interference patterns building on top of each other. All the other non-striped light is just flare and bloom from the laser.
|