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 PUNCH 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.

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