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Photoelasticity - TDK Head Cleaner - White background
2017-03-12
- Classification
- Photograph
- Museum
- Wikimedia Commons
- Rights
- CC BY-SA 4.0, as the museum states it.
- Who can see it
- Tweens profiles and older: its subjects are known and suit older children. How works are placed
About this work
TDK tape head cleaner cassette "HCL-11" made of clear hard plastic. The plastic is birefringent and demonstrates internal stress as coloured patterns (photoelasticity) when photographed using cross polarisation. The polarising light source (an LCD monitor) has been rotated such that the polarising filter on the lens is similarly oriented and so lets through all the direct light, producing a white background.
