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Hypercentric optics: A camera lens that can see behind objects

Applied Science · demo · Watch on YouTube

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What it is

Applied Science shows how telecentric and hypercentric optics differ from normal lenses, producing no or negative perspective. The video builds a telecentric system from a Fresnel lens and demonstrates a lens that can see around objects.

Why Hacker News recommends it

Commenters cite it as the clearest demonstration of hypercentric lenses and of looking around objects with optics.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2022, last 2026

What HN commenters said

  1. “Applied Science has a good video[1] showing how you can look around objects.”

    Good demonstration of looking around objects with a lens.

    grumbel, 2022-09 · Recommendation · in “Lensless camera creates 3D images from single exposure”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: hypercentric, telecentric, fresnel lens, perspective, diy optics

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