Can You Make Solar Eclipse Glasses at Home? Safety Risks and Certified Alternatives
With solar eclipses captivating millions, searches for “how to make solar eclipse glasses” surge online. However, homemade eclipse glasses are dangerously ineffective and can cause permanent eye damage. This article explains why DIY methods fail, identifies safe alternatives, and debunks viral myths about household materials like sunglasses, aluminum foil, or exposed film.
Why Homemade Solar Eclipse Glasses Are Unsafe
Inadequate Protection:
ISO 12312-2 certification is the global safety standard for eclipse glasses. DIY hacks (e.g., smoked glass, CDs, or welding filters) lack proper infrared/UV blocking, risking retinal burns.
Fact: NASA and the American Astronomical Society (AAS) explicitly warn against uncertified viewers.
Misleading Viral “Solutions”:
- Sunglasses, even stacked, block <0.1% of harmful solar radiation.
- Exposed photographic film or X-ray sheets do NOT filter infrared rays.
Safe Alternatives to DIY Eclipse Glasses
Buy ISO-Certified Glasses:
Look for ISO 12312-2 labels from AAS-vetted suppliers (e.g., Rainbow Symphony, American Paper Optics).
Pro Tip: Test certified glasses by wearing them indoors—you should see nothing except bright LEDs or bulbs.
Use a Pinhole Projector:
A simple, safe DIY method to indirectly view the eclipse. Poke a hole in cardboard and project sunlight onto a surface.
Debunked Myths About Eclipse Viewing:
- Myth: “Welding goggles (shade 12+) work.”
- Fact: Only shade 12+ welding filters are safe, but most are not handheld or widely available.
- Myth: “You can look during totality without protection.”
- Fact: Remove glasses ONLY during 100% totality (seconds/minutes). Partial phases require protection.
Where to Find Certified Eclipse Glasses?
- Reputable Retailers: Lowes, Walmart (check for ISO labels).
- Libraries & Science Centers: Many distribute free glasses ahead of eclipses.
Final Takeaway:
While DIY projects are tempting, there’s no safe way to make solar eclipse glasses at home. Protect your vision with certified gear or indirect viewing methods. Misinformation about eclipse safety spreads quickly—always verify claims with trusted sources.
