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Phosphorescent plastic toy

Phosphorescent plastic toy

H100/1087

Rights Managed

25.0 MB (696.8 KB compressed)

2544 x 3439 pixels

21.6 x 29.2 cm ⏐ 8.5 x 11.5 in (300dpi)

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Credit

MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY

Caption

Phosphorescent plastic toy. This toy glow-worm glows by phosphorescence, a slow-release form of photoluminescence, the process where light is absorbed and re-emitted. Phosphorescence usually involves the absorption of ultraviolet (UV) light, and the emission of visible light, in this case, a green light. The phosphorescent material needs to be charged by exposure to a light source (for example, by shining a light on the toy). The light energy absorbed is then slowly released over time. The effect is best seen in a darkened room. The process observed in glow-worms is an unrelated chemical reaction, an example of bioluminesence.

Release details

Model release not required. Property release not required.

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