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Biospectral Systems

Calvin (Day)

Calvin (Day)

Regular price $159.99 USD
Regular price Sale price $159.99 USD
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Prescription

Calvin (Day) is an iconic design with a modern ombre edge — thick frames for an easy fit and lasting durability, with barrel hinges and a sleek nose bridge that refine the look — reimagined for daytime blue light filtering. Clear or lightly tinted lenses filter the high-energy blue wavelengths from screens and LED lighting while preserving natural color perception.

  • Modern ombre edge: Thick, durable frame with barrel hinges and a sleek nose bridge.
  • Daytime blue light filtering: Reduces disruptive artificial blue light while maintaining true color — ideal for work, travel, and screen time.
  • Supports circadian rhythm: Keeps daytime light cues intact so your body's timing and energy systems stay aligned.
  • Fits your routine: Available in Non-Prescription, Readers, and Prescription options.

This is the Day version — meant to be worn during daylight hours to reconnect the human body with the signals of life. Our Night version offers deep amber/red lenses for evening protection. Choose Calvin (Day) to build a more regenerative indoors.

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