Member #412006

Member Since: February 22, 2013

Country: United States

  • Sheet polarizers are designed to work for a specific wavelength range - for sunglasses, this is understandably “visible” (400-700nm or thereabouts). In the IR, this polarizer likely has higher transmission, essentially acting like a longpass filter. As an example, check out this commercically available polarizer: . Transmission increases drastically after 800nm from 40% to 90%.

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