Permacolor Dichroic Filters

This image of a Permacolor filter, Cinedichro CTO shows how the dichroic filter passes the amber portion of the spectrum and reflects its complementary blue portions.

Dichroic filters are durable glass color filters that transmit only certain wavelengths of light, reflecting the rest of the spectrum, rather than absorbing it. Since virtually no energy is absorbed by the filter, light transmission is significantly higher than traditional gels and will never burn out or fade. Rosco Permacolor filters are made with the highest quality coatings, designed not to fade or shift color. In addition, Rosco's sophisticated manufacturing process allows for precise color consistency batch to batch to a degree that is unprecedented in other dichroic coatings. Permacolor filters are manufactured in five standard sizes on durable borafloat glass 1.75mm (.069") thick or can be custom cut in any size up to 13.5" in diameter.

Standard Colors
Durable enough to withstand the extreme temperatures found in even the hottest luminaires, the Permacolor palette of standard colors offers designers a long life filter alternative to many of the most popular Rosco gel colors. Choose from among twenty four saturated colors that won't fade or burn over time.

Architectural Series Colors
This series of available colors has been designed with the assistance of architectural lighting designers around the world and is perfect for both interior and exterior architectural lighting projects. Subtle, pale color tints are perfect for accent lighting and offer a unique alternative to the typical bright saturated colors available from other dichroic suppliers.

Cinedichro™ Glass Color Correction
Cinedichro CTO and CTB dichroic filters have been engineered to provide true, accurate color correction, precisely matching industry standards for color balancing daylight and tungsten light sources. Relying on the filters ability to withstand extremely high temperatures, Cinedichro filters can be used on most motion pictures lighting fixtures - even 6K pars. Like all Rosco Permacolor filter, Cinedichro are made to a maximum diameter 13.5". Please contact Rosco for more information on using Cinedichro filters with specific fixtures.

Library Colors
If you cannot find the color you need in the standard color range, we may have the color you need in our Library Colors. Many non-stocking colors are available on the shelf for immediate purchase. These colors have been designed as custom colors or as gel matches and do not require a custom design charge. Contact Rosco for further information and to check available stock.

Custom Colors
If your project requires a specific color, Rosco will match the sample color you provide. A custom design charge and minimum quantity requirements may apply. Please contact Rosco for more information.

IR/UV Filter (Hot Mirror)
IR/UV filter is a clear glass filter designed to pass visible light while reflecting the infrared and near UV energy. Perfect for museum and architectural applications. Available in standard and custom sizes.

UV Blocking Filter
UV Blocking filter reflects both near and far ultraviolet energy as far out as 250nm. Minimal color shifting allows this protective filter to be used in a wide range of lighting and scientific applications. Available in standard and custom sizes.

** some sizes may not be available