Just curious if anyone has seen this. It kinda reminds me of lens fungus on a camera lens.
I’ve had two projectors (both Epson PowerLite 480) do this in the last couple years. We don’t do repairs on projectors beyond replacing bulbs and filters. The first one was replaced and this one will be as well. So it’s not an urgent thing. I’m just curious what causes it. If you have a white background, the pattern becomes yellow.
Yes, this is a common thing for example when looking at older used photography lenses. Depending on the coating on the lens elements (some can be eaten, some not) and the grown fungus it can be “easily” cleaned by a professional photography shop. Cause is changing relative humidity in the environment, similar to molds in buildings.
DIY-cleaning optical elements can be a bit of a gamble without experience, taking them apart is relatively easy but putting them back together precisely can be difficult depending on the lens element complexity.
Ya that’s what it reminded me of.
And it’s definitely something that’s inside, on one of the mirrors or lenses or something. It’s not on the bulb. I don’t even know if anything could survive with how hot those things get.
There are creatures that live in/on hydrothermal vents at the bottom of the ocean with extreme pressure and temps. Life finds a way lol
W/o them, the polymerase enzyme and a majority of modern BioChem wouldnt exist/be known.
The word you’re looking for is extremophiles.
Some microorganisms/bacteria can even survive neutron radiation which baffled scientists that tried to find new ways to make food shelf-stable, they killed everything inside a sealed sample container with said radiation and after a while they still saw stuff growing inside.
I was one in the 90s.
Now Im older and more rickety. rimshot
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