3-Hole PUNCH Pinhole Projector

Thank you for your curiosity about why we see round images of the Sun through non-round holes!

Front side of pinhole projector (prototype)
Front side of PUNCH pinhole projector (prototype).
Back side of pinhole projector (prototype)
Back side of PUNCH pinhole projector (prototype).

The PUNCH Outreach team created the 3-Hole PUNCH Pinhole Projector to help explore how and why pinhole projection works to create real images of the Sun.

Download: [Really] Understanding Pinhole Projection (PDF, PROTOTYPE VERSION for FIELD TEST)

Please give us your feedback on our prototype projector and/or this explanatory presentation.

Sign up to be notified when our projector and other products become broadly available.