Cold mirror/filter

Features

These are filters to remove the wavelength of heat contained in a light source by transmission or reflection. This dielectric multilayer film has excellent heat resistance and weather resistance. It can be coated on reflector substrates such as elliptical mirrors.

Example characteristics

CF-A type

This transmits more than 85% of visible light and reflects more than 85% of light near the 1 μm wavelength.
A high thermal protection effect can be obtained against halogen lamps and xenon lamps with high radiation energy around 1 μm. In addition, it can also be coated directly onto a condenser lens to integrate the lens and filter functions.

CF-B type

This is a filter that transmits more than 85% of visible light and reflects more than 85% of near infrared light (wavelength that warms things) from 780 to 1,000 nm out of 780 to 2,500 nm, and absorbs near infrared light of 1,000 nm and higher.
This filter can obtain a thermal protection effect that suppresses increases in temperature due to radiant heat against halogen lamps and xenon lamps with high radiation energy around 1 μm.

NIC-A

This is a heat ray cut filter with enhanced heat resistance.
Since it transmits more than 85% of visible light, placing the filter in front of a halogen lamp or xenon lamp does not cause an extreme decrease in illuminance.
In addition, it can also be coated directly onto a condenser lens to integrate the lens and filter functions.

Hot-Mirror
With a multilayer coating using transparent dielectric film, this transmits more than 85% of visible light and reflects heat rays discharged from thermal energy light sources radiated from heat sources efficiently.
In addition, it also has excellent heat resistance and is effective in electromagnetic cutting.

UV-IR cut fillter

This is a filter that transmits more than 85% of visible light and realizes high reflectivity for ultraviolet and near-infrared rays simultaneously.
It is used for thermal protection of light sources with a strong spectrum against near infrared rays and for blocking ultraviolet rays harmful to liquid crystal elements.

At our company, it is possible to deposit multilayer films on large substrate materials such as 1000mm x 1000mm.