Got to see the whole thing from start to totality. It was almost beyond belief, coolest thing I have ever seen.
Maybe Day-Day either knows or can find out, since he lives where they made the ones he and I used...I saw that as well and wondered why. Do they lose the ability to block the harmful rays? Do they develope cracks? I Googled it, but found nothing.
They do that so you will buy more for the next eclipse.My wife ran across an organization accepting donations of glasses to redistribute to SE Asia and South American, where they have eclipses over the next few years. My glasses have a warning on them not to use them after 3 years. IDK why...
That's what we're discussing. Mine say not to use after three years...They do that so you will buy more for the next eclipse.
If they are saying they go bad after three years to sell more next time (when they really don't), who's going to take the chance and test the warning? Not me.They do that so you will buy more for the next eclipse.
That's my thought, they just simply want to sell more glasses.If they are saying they go bad after three years to sell more next time (when they really don't), who's going to take the chance and test the theory? Not me.
Do they have an expiration date, or come in a sealed container?That's what we're discussing. Mine say not to use after three years...
They don't have a date and they came in a sealed plastic sleeve. I've emailed the company with an inquiry...Do they have an expiration date, or come in a sealed container?
The sealed plastic sleeve suggests to me they really do have an expiration date, and it's not just a ploy to sell more. The sleeves bumps the cost for the manufacturer, I don't think they would raise the price to advance a scam.They don't have a date and they came in a sealed plastic sleeve. I've emailed the company with an inquiry...
It's possible the lens material starts to break down after being exposed to air.The sealed plastic sleeve suggests to me they really do have an expiration date, and it's not just a ploy to sell more. The sleeves bumps the cost for the manufacturer, I don't think they would raise the price to advance a scam.
It's a legitimate warning would be my guess.
But the next question, were they good for three years after purchase, or after the seal was broken.
I did read a random post on a space forum that you can tell if they're deteriorating by holding them up to light and looking for white spots, but I wouldn't trust that...It's possible the lens material starts to break down after being exposed to air.
Do solar eclipse glasses expire? NASA explainsI did read a random post on a space forum that you can tell if they're deteriorating by holding them up to light and looking for white spots, but I wouldn't trust that...
So IT IS a scam to make you buy more glasses. Just like the dairy industry with their so called "expiration date" on milk.
Thanks for the link. My glasses were made by American Paper Optics, the company which was going to try to make 100 million pairs and they definitely have the 3 year warning printed on them...
Mylar tolerates up to 440F and I doubt your car got that hot...I wish I had thought to ask when I picked up my glasses last weekend. My lenses (film) on mine looked a little wavy after leaving a pair in the hot car so maybe they do break down. I was planning on using mine again when the next solar eclipse comes near our area.
I did ask about fireworks glasses. American Paper Optics makes these as well including ones that convert each exploding light into an image. I had looked through this type in the past in which each starburst turned into a shower of Mickey heads.
I hope not. Maybe the paper frame or glue gave a little after getting hot. I'm keeping mine but will probably forget where I put them 7 years from now...Mylar tolerates up to 440F and I doubt your car got that hot...