Stress in Plastic Lens

Polarized light showing stress in a plastic injected magnifying lens. When photographed through cross-polarized white light some transparent plastics display birefringence effects, according to the pattern of residual stress within the plastic (a result of molding manufacturing). Areas of similar color represent regions under similar degrees of stress.

Filename

K17-POL_4684.jpg

Copyright

Ted Kinsman / Science Source Inc.

Image Size

5524x3683 / 8.7MB

analyzing engineering equipment non-destructive test photoelasticity photoelastic physical horizontal physics plastic pattern patterns polarized light strength direction magnitude stress analysis stresses technological technical template templates technology testing

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