Products By Knight Optical (USA) LLC


Precision Grade Cover Windows for Thermal Imaging

These precision grade windows are used to seal optical enclosures especially suited to CCTV and Imaging applications.

Absorptive glass neutral density filters

Glass Neutral Density filters attenuate light by absorption just like the gelatin neutral density filters. Glass ND Filters are more robust

Custom Germanium Windows for Thermal Imaging applications

Germanium Optics for Infra-red systems between µm 1.7 and 14 µm.

Custom QA Light Guides from Knight Optical (USA) LLC

Our custom UV fused silica light guides also provide over 90% transmission at 335nm and work efficiently down to 185nm, making them an excellent alternative to BK7

Diamond Turned Aspheric Lenses for Night Vision Goggles

Diamond turned aspheric lenses are typically used in optical assemblies such as night vision goggles, missile guidance systems, and other military based instruments

Diamond Turned Aspheric Lenses.

Knight Optical supplies a range of infrared diamond turned aspheric lenses.

Dichroic Filters for Scientific Instruments and Stage and Entertainment ...

We hold a massive inventory of Bandpass, Long Pass, Short Pass, Band-Blocking and Color-Correction filters.

Germanium Windows for Gas Detection

Knight Optical provide a number of optical components that are used in Gas Detection Systems including Germanium Windows

Infra-red optics - Sapphire Spherical Lenses

We supply a range of IR Sapphire Lens solutions and offer plano convex, biconvex and concave sapphire lens solutions.

Interference Bandpass Filters for Gas Sensors

Gas Detection Systems use IBF to identify emission of a type of gas. Different gases emit at a specific wavelength which makes it identifiable when using a relevant IBF