Make a Safe Sun Projector Using Binoculars
Next Total Solar Eclipse: Mon, Aug 21, 2017 … See animation
Next Eclipse: Partial Lunar Eclipse – Mon, Aug 7, 2017 … See animation
Make a safe Sun projector to watch solar eclipses with a pair of binoculars or a telescope.
Project the Sun
Never look directly at the Sun without proper eye protection. You can seriously hurt your eyes and even go blind.
DIY Projector with Binoculars
With a quickly assembled projector using binoculars or a telescope, it's easier to create bigger and sharper eclipse projections than with a simple pinhole projector. It applies the same concept as a pinhole projector, but the Sun's image is projected through a magnifying lens instead of a pinhole.
- binoculars or a telescope
- a tripod
- duct tape
- a sheet of white paper
What to Do:
- Put the binoculars or the telescope on the tripod. Use duct tape to make sure that it is steady.
- Trace the lenses of the telescope or binoculars on the cardboard, and cut out the holes.
- Tape the cardboard in front of the binoculars or the telescope so that the lenses stick out of the holes.
- If there are any holes or spaces between the cardboard sheet and the lenses, cover them with duct tape.
- Direct the binoculars toward the Sun without looking at the Sun directly.
- Place the sheet of the paper on the ground at a distance below the eyepiece.
- Move the paper around until you see the Sun's image projected on the paper.
- Never look at the Sun directly without protective eye gear. Even sunglasses cannot protect your eyes from the damage the Sun's rays can do to them.
- Always consult the manual of your binoculars or telescope. Internal heat build-up can damage the telescope and any accessories attached to it.
- Do not look at the Sun through the binoculars or the telescope.
- Always keep your back toward the Sun while looking at a projection.
- Only use your projector for a few minutes at a time. The Sun's rays heat both the binoculars and create a possibly flammable hot spot on the paper.
- Don't leave your projector unattended.
Next Total Solar Eclipse
Aug 21, 2017 at 15:46 UTC … See more
- When Is the Next Solar Eclipse?
- Different Types of Eclipses
- What Are Solar Eclipses?
- How Often Do Solar Eclipses Occur?
- Total Solar Eclipses
- Partial Solar Eclipses
- Annular Solar Eclipses
- Hybrid Solar Eclipses
- Solar Eclipses in History
- Solar Eclipse Myths
- Magnitude of Eclipses
Protect Your Eyes
- Never Look Directly at the Sun
- Simple Pinhole Projector
- Eclipse Projector in a Box
- Binoculars / Telescope Projector