Making solar eclipse glasses at home can be risky unless you use certified solar filter materials. Looking directly at the sun—even during an eclipse—can cause permanent eye damage. However, if you want a safe DIY option, it's better to make a pinhole projector rather than actual eclipse glasses.
Why You Shouldn’t Make Homemade Eclipse Glasses with Regular Materials: Regular sunglasses, smoked glass, CDs, foil, or camera film do not block enough solar radiation. Only lenses with ISO 12312-2 certification are safe for direct solar viewing.
Safe DIY Option: Pinhole Projector Instead of trying to look at the eclipse, this device lets you project the image of the sun safely onto a surface.
What You’ll Need: A cardboard box (e.g., cereal or shoebox)
A piece of aluminum foil
A white sheet of paper
Tape
A pin or small nail
Scissors
How to Make It: Cut a hole (about 1 inch square) in one end of the box.
Tape a piece of aluminum foil over the hole.
Use the pin to poke a tiny hole in the center of the foil.
On the inside of the box, tape a piece of white paper to the opposite end—this will act as your screen.
Close the box and make another hole on the side to look inside, or leave one side open.
Stand with your back to the sun and let the sunlight pass through the pinhole. You’ll see a small projection of the eclipse on the white paper.
Alternative: Use Certified Eclipse Viewing Film If you're set on making actual eclipse glasses:
Buy ISO-certified solar viewing film from trusted sources (like Thousand Oaks Optical or Rainbow Symphony).
Mount it securely in cardboard or stiff paper frames.
Make sure there are no light leaks, scratches, or damage to the film.
Final Safety Reminder: Never look directly at the sun without certified eclipse glasses. Even a partial eclipse can cause serious and permanent eye damage.
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Making solar eclipse glasses at home can be risky unless you use certified solar filter materials. Looking directly at the sun—even during an eclipse—can cause permanent eye damage. However, if you want a safe DIY option, it's better to make a pinhole projector rather than actual eclipse glasses.
ReplyDeleteWhy You Shouldn’t Make Homemade Eclipse Glasses with Regular Materials:
Regular sunglasses, smoked glass, CDs, foil, or camera film do not block enough solar radiation. Only lenses with ISO 12312-2 certification are safe for direct solar viewing.
Safe DIY Option: Pinhole Projector
Instead of trying to look at the eclipse, this device lets you project the image of the sun safely onto a surface.
What You’ll Need:
A cardboard box (e.g., cereal or shoebox)
A piece of aluminum foil
A white sheet of paper
Tape
A pin or small nail
Scissors
How to Make It:
Cut a hole (about 1 inch square) in one end of the box.
Tape a piece of aluminum foil over the hole.
Use the pin to poke a tiny hole in the center of the foil.
On the inside of the box, tape a piece of white paper to the opposite end—this will act as your screen.
Close the box and make another hole on the side to look inside, or leave one side open.
Stand with your back to the sun and let the sunlight pass through the pinhole. You’ll see a small projection of the eclipse on the white paper.
Alternative: Use Certified Eclipse Viewing Film
If you're set on making actual eclipse glasses:
Buy ISO-certified solar viewing film from trusted sources (like Thousand Oaks Optical or Rainbow Symphony).
Mount it securely in cardboard or stiff paper frames.
Make sure there are no light leaks, scratches, or damage to the film.
Final Safety Reminder:
Never look directly at the sun without certified eclipse glasses. Even a partial eclipse can cause serious and permanent eye damage.