(14) 14 product ratings - 6PCS Car Side Rear Window Screen Sun Shade Mesh Cover. 4X Magnetic Car Side Front Rear Window Sun Shade Cover Mesh Shield UV Protection (Fits: 2012 Mitsubishi Eclipse). Any information on this material will be greatly appreciated. 4 x Car Side Window UV Protection Sun Shade Cover Visor Mesh Shield Sunshades (Fits: 2012 Mitsubishi Eclipse) 19.30. I present it with the belief that this constitutes fair use under copyright regulations. (Note: I do not know who might own rights to this chart. One of the answers here report the following formula: (more insight at this link)ġ3 or darker is safe enough. Answer (1 of 5): I did a bit of digging and found this welder’s glass shade scale. I read too late about the eclipse to order specific glasses.
Note: It's not my intention to open here the discussion on what could be other safe methods to watch the eclipse, this is well explained everywhere around.
I could not find a table or something explaining which kind of protection gives each number according to the Canadian website, the only concern is about how much infrared light goes through, ultraviolet does not seem to be a problem in almost any case (I was surprised to read that). Quality may be considerably poorer than that seen through the single Numbers to get roughly the same level of eye protection from solar If SN14 filter is not available, it is possible to combine lower shade They must be at shade 14 and highter to be dark enough to meet. Of number 7's or a 10 and a 4 together DO NOT have the same protectionĪs a single piece of number 14 (see unsafe methods for more details).įavorable (Royal Astronomical Society of Canada): The Great American Eclipse, the first solar eclipse to touch the continental United. Glass that is dark enough for solar viewing! And NO STACKING! A pair
Numbered from 1 to 14 with 14 being the darkest. Now, I read different opinions on the internet.īe careful that you use the right kind of glass! Welder's glass is I tried briefly this morning, and combining a #11 and a #9 was giving me a good view of the sun. Tomorrow (March, 20th 2015 at 10:45 CET) there's a solar eclipse and yesterday I could only find glasses #11 and #9. You can find in many place on the Internet that welder's glass #14 is good for looking at an eclipse.
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