How do Photochromic lenses work?

  • Thread starter Thread starter Thalita Luna
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SUMMARY

Photochromic lenses are designed to remain clear indoors and darken in response to UV light exposure outdoors. This technology relies on photochromic molecules that undergo a chemical change when exposed to sunlight, allowing them to absorb UV rays and transition to a darker state. The lenses revert to their transparent state when the UV light is no longer present. Key resources for understanding this technology include Transitions' official website and the Wikipedia page on photochromism.

PREREQUISITES
  • Understanding of photochromism and its chemical principles
  • Familiarity with UV light and its effects on materials
  • Basic knowledge of optical properties of lenses
  • Awareness of the applications of photochromic technology in eyewear
NEXT STEPS
  • Research the chemical structure and behavior of photochromic molecules
  • Explore the manufacturing processes of photochromic lenses
  • Learn about the different brands and technologies in photochromic eyewear
  • Investigate the environmental impact of photochromic lens production
USEFUL FOR

Opticians, eyewear manufacturers, materials scientists, and anyone interested in the technology behind adaptive lenses.

Thalita Luna
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Photochromic lenses are common in glasses, they stay transparent indoor, but get darken when exposed to sunlight. How does it work ?
 
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