# @optica.worldwide on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DTvY2roER6T
- **Gondola URL:** https://gondola.cc/posts/54023370-opticaworldwide-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/ccc1c5685c.jpg
- **Posted:** 2026-01-20T17:12:45.000+00:00
- **Account Owner:** Optica (@optica.worldwide) — https://gondola.cc/optica.worldwide

## Caption

Image of the Week: Tea Glass Caustic

The curved surface of a glass of tea and the liquid within refract and focus sunlight into a bright, concentrated spot, which diffuses into an amber-tinted conical shape. The glass also acts as a prism, creating a miniature dispersion effect along the light pattern’s edges that results in a boomerang-like rainbow.

[2025 #OPNPhotoContest Honorable Mention] 

Vahid Abbasian, Washington University in St. Louis, MO, USA, uniq.vahid

## Stats

- **Views:** 0
- **Likes:** 98
- **Shares:** 0
- **Comments:** 1

## Tags

opnphotocontest

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