Color Filter

Color Filter Description

Optical color filters allow their own specific color to pass through while essentially filtering out all other wavelengths of light. Unlike polymer gels or absorptive colored glass, our filters use an absorptive-free film that provides superior transmission. Dichroic color filters reflect unwanted light instead of absorbing the energy, which works well with much higher intensity light sources.

A long-wave pass (LWP) filter design transmits longer visible wavelengths and blocks shorter wavelengths, while a short-wave pass filter (SWP) does the opposite.  Full-width at half-maximum (FWHM) is the distance between two adjacent 50% edge points and is also known as the 50% bandwidth of bandpass or notch filters.

Bandwidth is a general term not limited to the point where transmission is 50% of peak. Bandwidth can represent either absolute or percent of peak transmission.

Depending on the design, our color optical filters range in use. Color optical filters cover many industrial applications, from complex machine vision to digital projection to entertainment lighting to copying and printing.

Some of the benefits of color optical filters include:

  • Rich saturated colors.
  • High transmission and low absorption.
  • Fully customizable to OEM specifications.
  • No fading or aging.
  • Durable build for high output lamps.

Optical Filter Color Varieties

Optical Filter Shop’s color filters come in the following varieties:

  • Amber: Wavelengths from our amber color filters can accurately measure from 590-595 nanometers in the LWP regions.
  • Blue:  Wavelengths from our blue color filters can measure from 432-785 nanometers in the SWP regions, LWP regions and FWHM bandwidth.
  • Cyan: Wavelengths from our cyan color filters can measure from 543-590 nanometers in the SWP regions.
  • Fuchsia: Wavelengths from our fuchsia color filter can measure up to 682 nanometers in the LWP regions.
  • Green: Wavelengths from our green color filters can measure from 507-570 nanometers in the SWP regions and FWHM bandwidths.
  • Lavender: Wavelengths from our lavender color filters can measure from 355-566 nanometers in the LWP regions and FWHM bandwidths.
  • Magenta: Wavelengths from our magenta color filters can measure wavelengths from 508-556 nanometers in FWHM bandwidths.
  • Orange: Wavelengths from our orange stock color filter can measure up to 573 nanometers in the LWP regions.
  • Pink: Wavelengths from our pink color filters can measure from 515-540 nanometers in FWHM bandwidths.
  • Red: Wavelengths from our red color filters can measure from 593-646 nanometers in the SWP and LWP regions.
  • Yellow: Wavelengths from our yellow color filters can measure from 487-518 nanometers in the LWP region.

Purchase Custom Color Optical Filters

At Optical Filter Shop, all of our color filters are fully customizable. Depending on your specifications, ordering a custom color optical filter can be easy as furnishing us with the size, shape and dimensions. We can also add extra coatings onto the same optic to enhance the filter’s weight, size or performance.

Some color filters can pair with other designs to perform a different function. We can combine your color filters with:

  • Ultraviolet (UV) and infrared (IR) filters.
  • Cold mirrors.
  • Color correction filters.
  • Patterned color filters.
  • Color gobos.

Contact Optical Filter Shop for Your Color Filter Needs

With decades of thin-film technology experience, the engineering team at Optical Filter Shop has the knowledge and expertise to deliver the perfect optical color filter solution for your needs. Contact us today to learn more about our products and services.