Category:Snell's window
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underwater phenomenon due to Snell's Law | |||||
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Snell's window is an optical effect visible when underwater and looking upward. Under ideal conditions, an observer looking up at the water surface from underneath sees a perfectly circular image of the entire above-water hemisphere—from horizon to horizon. Due to refraction at the air/water boundary, Snell's window compresses a 180° angle of view above water to a 97° angle of view below water, similar to the effect of a fisheye lens.
Media in category "Snell's window"
The following 18 files are in this category, out of 18 total.
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Brechung WOF Taucher.jpg 500 × 600; 43 KB
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Bubble Ring in Sunlight.JPG 2,048 × 1,536; 617 KB
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Detail, Ice planet and antarctic jellyfish (cropped).jpg 1,509 × 1,952; 1.81 MB
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Dharavandhoo Thila - Hanifaru Bay Sharks.jpg 900 × 675; 224 KB
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Diver about to surface (seen from below).jpg 300 × 475; 14 KB
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Ice planet and antarctic jellyfish.jpg 4,256 × 2,832; 7.21 MB
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Looking up (6158466637).jpg 576 × 768; 196 KB
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Refraction limite.gif 378 × 369; 4 KB
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Snell's window edge.jpg 5,184 × 3,456; 3.71 MB
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Snell's window, St. Louis Zoo.jpg 5,184 × 3,456; 3.79 MB
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Snell's window.jpg 1,024 × 768; 390 KB
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Uwangelfish.jpg 600 × 450; 86 KB
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司乃耳定律.jpg 157 × 22; 9 KB