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Colorimeters measure colour in a substance, for example in water. It defines the measurement of the colour to enable its identification, using the lightwave spectrum. Colorimeters are a form of a spectrophotometer. The use of mirrors in the system, redirect the light beam from the light source to the sample and back to the sensor to enable a reading. Knight Optical provide high quality coated front surface mirrors of varying reflection averages from stock and to custom specifications. Knight Optical provide several metallic coatings such as: •UV Enhanced Aluminium •Enhanced Aluminium •Protected Silver •Protected Gold •Visible Dielectric •NIR Dielectric These are all available as custom coatings depending on your requirements for your colorimeter.

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Knight Optical can offer you Plane Mirrors (general, λ/1 and λ/4), for use within 3D Mapping Applications in a range of materials such as Soda-lime float glass, white float glass, and BK7 glass. Plane mirrors also known as front surface mirrors or first surface mirrors are used within 3D Mapping Applications. As stock we hold a number of general purpose, λ/1 and λ/4 with a range of up to 6 types of coatings such as Enhanced Aluminium, Ali/SiO2 and Ali/Mgf2. Our general purpose grade mirrors are made from good quality float glass and generally available in thicknesses of 1mm, 3mm and 6mm as standard. How our mirrors are used within 3D Mapping, is they are used as a sender and receiver of a laser beam that will take a reading of a specific surface, and from that reading it can create a 3D map of the surface that is has read. FOR MORE INFORMATION READ THE PDF.. Material::Soda lime float glass, BK7 or equivalent Diameter Tolerance::+0/-0.2mm Lengths/ width::±0.3mm (≤100mm), ±0.5mm (>100mm) Thickness::±0.25mm Surface quality::<60-40 scratch/dig for general purpose, <40-20 scratch/dig for λ/4 1.1mmthk::1λ over 10mm dia. 3/6mmthk: :2λ over 25mm dia. Parallelism::<3 arcmin

λ/10 mirrors are used in the aerospace environment due to the vibration - Knight Optical can offer you stock and custom lambda/10 mirrors for use in government testing for aerospace, in a range of materials such as BK7 or equivalent, Zerodur, Quartz, UV Fused Silica and many more. Mirrors are made from low expansion glass for optimum stability to maintain the lambda/10 flatness. The mirrors help produce high quality images and can be coated with a variety of coatings to ensure that the perfect quality image in the wavelength you require is achieved: Enhanced aluminium 94%R for visible applications. 99.9% dielectric for laser use in visible applications. UV aluminium for UV applications down to 180nm. 98.5% dielectric for laser use in the NIR applications. Ion plated silver for NIR-2000nm applications. Protected gold for 750nm to far infra-red applications λ/10 mirrors are used in the aerospace environment due to the vibration, temperatures & pressure through which they are exposed. To Find out More read the PDF Material::Soda lime float glass Diameter::+0 / -0.2 mm Length/width::±0.1mm Thickness::+0.1 / -0.2mm Surface quality::<40:20 scratch/dig Flatness::λ/10 over 90% of mirror aperture (Rear is commercial polish)

Knight Optical offers a range of precision optical components for use in IPL (Intense Pulsed Light) applications. The most common usage of IPL systems are typically used as photo epilators.Custom Ceramic Reflectors are a key component for this application. The xenon flash lamp which are typically used emit light in 360 degrees. However utilising ceramic reflectors which are light reflectors with a U channel means that light which would normally be wasted i.e. shining backwards is now refocused down into the filters and light guides. Knight Optical provides ceramic reflectors which are typically moulded from alumina. This choice of material is down to its ability to withstand thermal stresses and high reflectivity values. For more information read PDF