Dichroic coatings

Dichroic color filter coatings are an excellent alternative to dyed plastics and glass. Unlike plastic color gels which age and breakdown relatively quickly during use, dichroic filters are designed to stand up to the heat and UV energy in high energy light sources.

High energy light sources can also have a damaging affect on dyed glasses as well due to their heat absorbing nature. Dichroic color filters have the advantage of reflecting unwanted light instead of absorbing the energy, which allows dichroic filters to be used with much higher intensity light sources.

Dichroic color filters are used in a variety of applications including architectural, entertainment, science, and engineering. Many industry standard colors have been engineered as dichroic filters. However, we would be happy to review any custom color coatings needed to complete your project. We offer equivalents in dichroic to Roscoe, Gam, and Lee polyester colors.

Color Temperature Blue
We provide a variety of color correcting filters including CTB (Color Temperature Blue). Color correcting filters are used to correct the color temperature of a light source. A Full CTB filter converts a 2900K light source to 5500K. Most filters are stocked in 24" diameter x 3.3 mm thick Borofloat.

Applications: Boosting incandescent daylight.

Color Temperature Orange
Another standard color correcting filter is CTO (Color Temperature Orange). A Full CTO filter converts a 5500K light source to 2900K. Most filters are stocked in 24" diameter x 3.3 mm thick Borofloat.

Applications: Warming up daylight to incandescent.

Standard Additive Blue
The Standard Additive Blue color coating has an average transmission more than 85% from 390nm-480nm, 50% point at 505nm +/- 15nm, and average transmission less than 1% from 540nm-750nm at normal incidence.

Standard Additive Green
The Standard Additive Green color coating has an average transmission less than 1% from 400nm-460nm, 50% point at 505nm +/-15nm, peak transmission at more than 70%, 50% point @ 575nm +/-15nm and average transmission less than 1% 610nm- 710nm at normal incidence

Standard Additive Red
The Standard Additive Red color coating has an average transmission less than 1% from 380nm-550nm, 50% point at 585nm +/- 15nm and average transmission more than 75% from 615nm-730nm at normal incidence.

Standard Subtractive Cyan
The Standard Subtractive Cyan (Anti-Red) color coating has an average transmission more than 85% from 390nm-530nm, 50% point at 555nm +/- 15nm and average transmission less than 1% from 585nm- 710nm at normal incidence.

Standard Subtractive Yellow
The Standard Subtractive Yellow (Anti-Blue) color coating has an average transmission less than 1% from 410nm-475nm, 50% point at 515nm +/- 15nm and average transmission more than 85% from 550nm- 750nm at normal incidence.

Standard Subtractive Magenta
The Standard Subtractive Magenta (Anti-Green) color coating has an average transmission more than 75% from 395nm-440nm, 50% point at 460nm +/-15nm, average transmission less than 1% from 500nm-590nm, 50% point @ 623nm +/-15nm and average transmission more than 75% 645nm-750nm at normal incidence.

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