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Infrared transmitting film and infrared-sensor cover using same

  • US 6,537,673 B2
  • Filed: 09/10/2001
  • Issued: 03/25/2003
  • Est. Priority Date: 10/05/2000
  • Status: Expired due to Fees
First Claim
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1. A film for transmitting infrared ray, comprising:

  • a mirror-coat layer comprising a lamination of a first layer and a second layer, the first layer having a refractive index greater than that of the second layer; and

    a color-material layer placed;

    on the mirror-coat layer, the color-material layer comprising at least one color material and a binder, wherein the color-material layer absorbs visible light in a given wavelength range and transmits infrared ray, wherein the film has 80% or more transmission factor for infrared ray.

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