Optical Filters

Optical Filters

Kentek offers an extensive selection of mineral glass and coated glass filters for a variety of applications including from laser, IPL, medical, and analytical spectral markets. Optical filters can be grouped into two categories: Interference and Absorptive.  Optical filters have two basic purposes: to filter unwanted wavelengths that can decrease efficiency or cause component damage,and to assist in cooling optical components. Our glass and coating technologies can increase the efficiency of your system and reduce the likelihood of component damage.

Interference Filters - Reflect the unwanted wavelengths and transmit wanted wavelengths.

Absorptive Filters - Absorb unwanted wavelengths and transmit wanted wavelengths.

Dichroic Filters -Reflect one or more spectral bands or lines and transmit others, while maintaining a nearly zero coefficient of absorption for all wavelengths of interest.

Neutral Density Filters - Decrease the intensity of light without changing the relative spectral distribution of energy.

Long Pass Filters - Pass wavelengths that are longer than a specified wavelength.

Short Pass Filters - Pass wavelengths that are shorter than a specified wavelength.

Bandpass Filters - Pass wavelengths in a desired range and attenuate wavelengths that are shorter and longer.

Notch Filters - Pass a narrow band of wavelengths in a desired range and attenuate wavelengths that are shorter and longer.

Mirrors - Highly reflective or partially reflective at a specified wavelength.

Beam Splitters - An optical device which divides an incident beam into two or more separate and distinct beams.

Colored Filter Glass - Unique in their ability to transmit or absorb broadband wavelengths.

X-Ray Filters - High density glass that attenuates X-Ray and Gamma rays.

Custom filters available upon request.

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