Photoelastic stress,Photo 2 of 3. Photoelastic stress in a plastic protractor is observed by placing it between co-aligned (Photo 2) and crossed (Photo 3) linear polarizers. Built-in stress causes optical birefringence which is revealed as colored bands when illuminated by white light. Also shown (Photo 1) is the same protractor in un-polarized light. Photo 2 of 3 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5111 px × 3387 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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