Hyperspectral deals with many narrow spectral bands over a continuous spectral range. Sensors are designed and built to process this imaging spectral data into objects. Certain objects leave unique 'fingerprints' across the electromagnetic spectrum. These 'fingerprints' are known as spectral signatures and enable identification of the materials that make up a scanned object. For example, a spectral signature for oil helps mineralogists find new oil fields. Hyperspectral sensors are also in agriculture, mineralogy, physics, and surveillance.
High performance infrared (IR) cameras utilize custom anti-reflection (AR) coatings and spectral filters for blocking unwanted wavelength bands while transmitting wanted wavelength to the detector. These coatings and filters will improve signal to noise ratios and thus improve the resolution of the camera.
Machine Vision Cameras:
Machine vision is the process of applying a range of technologies and methods to provide imaging-based automatic inspection, process control and robot guidance for industrial applications. These machine vision cameras must be durable for the industrial environments, have high performing AR coatings and utilize bandpass filters or notch filters to achieve a high signal to noise ratio.
A relay lens is a lens that inverts and extends an image, typically down an optical tube. Relay lenses are found in endoscopes and periscopes. They need high quality anti reflection coatings to maintain high transmission in the complicated lens array.
A microscope is used to see objects that are too small for the naked eye. The microscope optical system contains many lenses that require Anti Reflection (AR) coatings to insure high transmission. Also, many microscopes require additional filters to eliminate stray light (Apodizing filters), wavelength filtering filters, high reflective mirrors and polarization filters.
A reticle is made up of fine lines and is used in an eyepiece of a sighting device, like telescopes, microscopes, surveying equipment and rifle scopes. The reticle configuration can include cross hairs, dots, circles, scales and chevrons. Our reticles are produced using high-precision photolithography process. The patterns can be as small as 5 um and can be made from almost any metal and dielectric materials.