JNS Glass & Coatings offers IR blocking and IR passing filters also referred to as hot mirrors and cold mirrors. A hot mirror is a specialized dielectric mirror designed to reflect near infrared and transmit visible light. A cold mirror coating is designed to reflect visible light and transmit a specified amount of energy in the infrared spectrum. JNS offers commercial grade and precision grade filters for a wide range of applications ranging from photonics to industrial.
Hot Mirror
Hot mirrors are typically used to achieve broad visible transmission while blocking near infrared. The filter shown below is our SP700, a shortpass filter with a cut on wavelength of 400nm and a cut-off wavelength at 700nm. This particular filter is designed for complete IR blocking and UV blocking and is just one example of numerous hot mirror or short-wave pass designs offered by JNS Glass & Coatings.
Cold Mirror
A cold mirror is designed to block visible light and pass NIR energy. The LP715, having a cut-on wavelength of 715nm, is a longpass filter designed to block all visible light and pass NIR out to 1100nm. The filters are commonly used in vision applications to improve infrared contrast and resolution.
