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Where presentation meets perfection! Elevate your sweet creations with packaging that showcases your treats in all their delectable glory. Options:Square Sizes [w x g x h]:6” x 6” x 2.5” Material:Paper & PVC Colour:White & Clear Quantity:200 pieces per case

Knight Optical can offer UV Fused Silica Windows for Vacuum Applications. UV Fused Silica is a relatively hard optical glass with a very low coefficient of thermal expansion. This means that it is a good choice for us in Vacuum applications, as any difference in temperature will not affect the optical performance. In addition to the above, UV FS has high transmission from UV to NIR meaning that there is little loss of image when it is used for a Vacuum Window/viewport and therefore the quality of the optical system is not compromised. All our UV Fused Silica Lenses are fully inspected on their quality in our ISO 9001 certified, state-of-the-art Metrology laboratory, using our Trioptics Optispheric, and Starrett AV300 and Zygo Verifire XPZ. This allows us to work to the highest QA standards and meet the tolerance specifications on these precision components Read PDF for more info Material::UV Grade Fused Silica Operating Wavelength::587nm Diameter Tolerance::+0 / -0.10mm Centring Tolerance::<5 arc min Focal Length Tolerance::± 0.2mm (<10mm) ±2.0% (10mm – 1000mm) Centre Thickness Tolerance::±0.2mm Surface Figure::3/ 3 (1) Surface quality::<40-20 Scratch/Dig Coating::Optional

Knight Optical has successfully launched a range of Stock Optical Domes for use in Pyronometers. Pyranometer/pyrgeometer are used for measuring solar irradiance. Typical applications being to understand where insulation needs to be within a building, climate studies and solar monitoring systems. A dome is essentially a window that has two parallel curves faces. Domes are used to shield the thermopile/ sensor used for making the measurements within a Pyranometer. Our domes are polished to high standards having good form error and high clarity with excellent transmission in the UV, NIR and FarIR spectrums allowing for accurate measurement. Capabilities: Domes are readily mountable, optically clear and manufactured to a high standard. Available from 5mm to 200mm in diameter and 0.25 to 10mm in thickness offering high transmission and extreme toughness for harsh environments. For more information read PDF

Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Sapphire is birefringent and if its use is for critical optical application then the crystal might have to be cut along the zero degree plane, or C-Cut. Random cut is usually cut along a plane that is 60° off-axis as the growth in this direction is the easiest to grow. Random cut is anything that is not the C-Cut angle. Sapphire can fluoresce depending upon the concentration of other minerals within the lattice, for example Iron (Fe) or Chromium (Cr). Clear Sapphire might fluoresce orange when illuminated by UV light if impurities are in the crystal. Fluorescent free Sapphire has to be grown from 'pure' feedstock and seed and in an environment that cannot place impurities into the lattice. READ MORE ... CLICK LINK Material::Random-Cut Sapphire Diameter::+0.0 / -0.20 mm Length,width::±0.1 mm Thickness::±0.1 mm Flatness::<5λ Surface quality::<60-40 scratch/dig Parallelism::5 arc min

Our precision grade N-BK7 windows are often used to seal optical enclosures & act as a protective window for the optical and electrical component behind the window, particularly within CCTV and ANPR systems where there is a risk of damage. N-BK7 provides excellent transmission in the visible and near infrared spectrum which can be enhanced still with our Anti Reflective coatings. Our stock range of ¼ wave N-BK7 or equivalent windows are supplied either uncoated or with the option of an Anti-Reflective coating on both faces with extended BBAR for visible and NIR applications within the 450-900nm wavelength range. We can also offer custom solutions for your application, whether it is a custom size or a coating to optimise a different wavelength range, beamsplitter coated or mirror coated to meet your bespoke requirements. Read PDF for more data Typical specs::N-BK7 or Equivalent Length/Width Tolerance::±0.1mm Thickness Tolerance::±0.1mm Flatness::>λ/4 over 90% aperture Surface quality::<40/20 Scratch/Dig Parallelism::1 arc minute Coating::Windows with the suffix “AV2” are coated on both faces with our extended broadband multilayer antire

Knight Optical offer a range of Stock BK7 Windows, for use within Wind Monitoring LiDAR Systems. These LiDAR systems are used in monitoring wind speeds and wind direction. The data accumulated can be used to generate a Digital Terrain Model or a Digital Elevation Model which are 3D representations of terrain. BK7 is one of the most widely used optical glasses available for use in the range from visible up to the near infrared. Making it ideal as a protective optical window for Wind LiDAR systems which operate at 1500-1560nm. The BK7 can offer an uncoated average transmission of 92% between 300nm and 2000nm. SEE PDF for Full Details Material::N-BK7 or equivalent Diameter Tolerance::+0.0/-0.15 mm Length/Width Tolerance::+/- 0.10mm Thickness Tolerance::+/-0.10mm Transmission::Tavg=92% dependent on substrate thickness

Knight Optical can offer Barium Fluoride Optics for use within Medical Imaging. We supply a range of Barium Fluoride Optics for a range of applications. All individually QA checked and metrology tested for quality to ensure parts meet customer specification. Supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. We supply precision optics to customers in the medical industry for applications such as medical thermology and thermography. Barium fluoride optics are used in the detection and screening of breast cancer and for screening for atypical pneumonia (SARS) and monitoring respiratory conditions. Due to barium fluoride’s high radiation resistance, it is ideal for use in high radiation (x-ray/gamma rays) environments. Other applications include cryogenically cooled thermal imaging systems, infrared spectroscopy and high energy neutron detection. For more information read PDF… Material::Barium Fluoride (BaF2) Shape::Spherical Lenses, Aspheric Lenses, Windows, Prisms Dimensional Tolerances::+/- 0.1mm Centering::< 3 arcminutes Surface quality::< 60-40 Scratch/Dig Coating::Antireflective coatings for application bandwidth (if required)

Knight Optical offer a range of Stock N-BK7 Dome Windows, for use with Underwater Lighting. A dome is an optical window composed of two parallel curved surfaces. Domes are commonly used in defence applications and often in extreme environments such as Submersible ROV’s. The shape of the window creates a naturally strong shape that gets tougher under pressure. Using a curved dome optical surface allows for an increased beam angle, therefore allowing a greater area to be lit from one light source. For visible applications, N-BK7 with its high optical quality and uniform transmission and low absorption in the visible spectrum makes it an ideal material for underwater lighting. A tough and cost effective solution which allows for good transmission of the light source in the underwater environment will both protect the light source as well as transmitting from 300nm up to 2µm. For more information read PDF Material::N-BK7 or Equivalent Diameter Tolerance::±0.1 Thickness Tolerance::±0.1 (±0.2 for >100mm diameter) Surface Quality::<60/40 Scratch/Dig Chamfer::0.2x45° typical Centricity::<0.1mm

Sapphire is an incredibly hard crystal (HK1370kg/mm2), second only to diamond. Fluoresence free sapphire windows have high mechanical strength, thermal and chemical resistance and is scratch resistant, making it very desirable for operating in harsh conditions. Sapphire windows can be made thinner than alternative crystals thanks to its structural integrity and can operate up to 2030⁰C. The material transmits between the UV and IR at 0.15-5.5µm, and has a high refractive index of 1.75.. Knight Optical supply a range of quality Sapphire optical components including Fluoresence free sapphire windows, Sapphire lenses, Sapphire prisms, and Sapphire blanks either from stock or bespoke custom made to your specification for a range of applications.  Our current range includes Random Polarization Sapphire that can be used for most applications apart from UV use. Click link URL to read more …

New for 2019, Knight Optical’s newly expanded collection of Moulded Optics now further meet the demands of the most complex, high-specification projects. Drawing on our 28 years’ experience and passion for producing premium-quality components, we now provide an even greater component offering within our Moulded Optics range. From Quartz Tubes and Aspheric Lenses to sought-after Germanium Windows and Fresnel Lenses, our optics are specified for a diverse variety of applications – such as magnification and light diffusion. One of the most popular uses for Moulded Optics is light sensor devices. Connected to floodlight circuits and used to detect movement within their radar, these devices are commonplace within the defence industry and for home and workplace security usage. Their operation lies within their ability to identify infrared (IR) wavelengths emitted from objects within their field of view. Read PDF for more information…. Material: :Acrylic or PMMA Diameter: :+0.0 / -0.25 mm Thickness: :+0/-0.20 mm Surface quality: :<60-40 Scratch/Dig

Hydrophobic means to repel water. Applying a hydrophobic coating to a surface can help the surface repel dirt and residue for easier cleaning. These types of coatings also have an oleophobic property, meaning that oil and grease is also repelled. Knight Optical provide Hydrophobic Coatings to wide range of protective windows made from materials such as BK7 or equivalent, UV Fused Silica or Borosilicate. Benefits for hydrophobic are that is: Optically Clear Easy-to-Clean Fingerprint and Smudge resistant The properties of the optical component itself remain unaltered meaning it does to hinder its current application or require a redesign. This coating would be a custom item and can be applied to most of our stock optical components. If you would like to discuss how a hydrophobic coating can enhance your application contact our technical sales team whom can assist. Read PDF for full specification

Knight Optical can offer Barium Fluoride Windows for use within Medical Imaging. We supply a range of barium fluoride windows for a range of applications. All individually QA checked and metrology tested for quality to ensure parts meet customer specification. Supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. Knight Optical supply precision optical components to customers in the medical industry for applications such as medical thermology and thermography. Barium fluoride optics are used in the detection and screening of breast cancer and for screening for atypical pneumonia (SARS) and monitoring respiratory conditions. Due to barium fluoride’s high radiation resistance, it is ideal for use in high radiation (x-ray/gamma rays) environments. Other applications include cryogenically cooled thermal imaging systems, infrared spectroscopy and high energy neutron detection. Read PDF for more information… Material::Barium Fluoride (BaF2) Shape::Circular Windows, Square Windows Dimensional Tolerances::+/- 0.1mm Parallelism::< 3 arcminutes Surface Quality: :<60-40 Scratch/Dig Coating::Antireflective coatings for application bandwidth (if required)

We supply a range of Telecom Grade Windows for a range of applications - Knight Optical can offer Telecom Grade Windows for use within Fibre Optic Applications. We supply a range of Telecom Grade Windows for a range of applications. All individually QA checked and metrology tested for quality to ensure parts meet customer specification. Supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. Knight Optical supply precision optical components to customers within Fibre Optic Applications. Our Telecom Grade Windows are coated to minimise reflection in the telecoms waveband. These windows are optimized for fibre optic applications in the S and C bands between 1460nm to 1565nm while maintaining excellent transmission out of the operating wavelength. For more information read PDF… Material::B270 or equivalent, White Float Shape::Circular Windows, Square Windows Dimensional Tolerances::+/- 0.1mm Parallelism::+/- 5 arc minutes Surface Figure: :< 5(1) @ 633nm Surface quality::< 40-20 Scratch/Dig

Optically clear & manufactured for Drone & Vision system cameras & CCTV - Knight Optical has successfully launched a range of Stock Optical Domes for protective housing for Drone and Vision system cameras, where protection of electronic sensor systems and expensive fish-eye lenses from harsh liquid and gas environments is essential. A dome is essentially a window that has two parallel curves faces. Our domes are high quality with good form error polished faces to ensure high clarity and transmission in the Visible and NIR spectrums allowing for accurate measurement. Capabilities: Domes are readily mountable, optically clear and manufactured to a high standard. Available from 5mm to 200mm in diameter and 0.25 to 10mm in thickness offering high transmission and extreme toughness for harsh environments. For more details read the PDF ... BK7:PMMA Acrylic Quartz:Sspphire Germanium:Silicon

Known for their resistance to mechanical and thermal shock, our Magnesium Fluoride (MgF2) Windows are specified for a variety of applications operating in a range of harsh environments. Commonly employed for high-tech applications include excimer lasers, Fourier-transform infrared spectroscopy (FTIR), thermography and other infrared (IR) systems, MgF2’s durability and birefringent properties make for a sought-after optical window across a spectrum of industries. What’s more, its stability in water means it’s ideally suited for outer surfaces, such as windows. With its birefringence (beneficial for polarisers in the UV waveband), transmittance between 0.1µm and 7µm and at over 90% between 0.4-5.0µm and hardness of circa HK576, MgF2 is one of the hardest optical fluorides. For more information read PDF …… Material::Magnesium Fluoride (MgF2) Thickness::+/-0.2mm Diameter::+/-0.2mm Surface quality::<60-40 Scratch/Dig

Knight Optical can offer Z-Cut Quartz Windows for use in the security industry. We supply a range of Z-Cut Quartz windows for a range of applications – all individually QA checked and metrology tested for quality to ensure parts meet customers’ specifications. What’s more, our Z-Cut Quartz Windows are supplied in a range of sizes & shapes with custom coatings tailored to meet your individual applications. We supply precision optical components to customers within the security industry. Z-Cut Quartz windows can be used in the terahertz region for non-invasive scanning of individuals. These types of scans can detect objects such as weapons & are used in airports and other high-security locations. Quartz is a birefringent material, which affects the polarisation of light passing through it, and is cut specifically along the Z-axis to maintain polarisation. Z-Cut Quartz is used in applications where quartz is an ideal material; yet changes to polarisation are required Read PDF for more...

Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Sapphire is birefringent and if its use is for critical optical application then the crystal might have to be cut along the zero degree plane, or C-Cut. Random cut is usually cut along a plane that is 60° off-axis as the growth in this direction is the easiest to grow. Random cut is anything that is not the C-Cut angle. Sapphire can fluoresce depending upon the concentration of other minerals within the lattice, for example Iron (Fe) or Chromium (Cr). Clear Sapphire might fluoresce orange when illuminated by UV light if impurities are in the crystal. Fluorescent free Sapphire has to be grown from 'pure' feedstock and seed and in an environment that cannot place impurities into the lattice. Click PDF link to read more …... Material::Random-Cut Sapphire Diameter::+0.0 / -0.20 mm Length,width::±0.1 mm Thickness::±0.1 mm Flatness::<5λ Surface quality::<60-40 scratch/dig Parallelism::5 arc min

Knight Optical offer a range of Stock Sapphire Windows, for use within Infrared Systems. Knight Optical can offer Sapphire (Al2O3) Optics for Infra-red systems over the waveband of 0.2 to 5µm. We offer Sapphire optics for UV, Visible, NIR (0.9 to 1.5µm) and Mid-Waveband Infra-Red (MWIR, 3 to 5µm) Imaging Systems. Sapphire has hardness of about HK2000, which makes it a better choice for windows and outer elements of lens systems. Sapphire has good transmission in the MWIR band, and can be used with optical glass in the NIR, and with Silicon or Germanium in the MWIR, to form well corrected doublets and lens systems. These systems include, for example, Forward Looking Infra-Red (FLIR) systems, and thermography. Al2 O3 has a refractive index of about 1.9288no 1.9174ne at 200nm through to 1.623no 1.615ne in the IR (5µm). This pairing will allow for the design and manufacture of a colour corrected lens that can be used in broad spectrum thermal imaging systems. Material::Sapphire (AL2O3) Diameter Tolerance::+0.0/-0.20 mm Length/Width Tolerance::+/- 0.10mm Thickness Tolerance::+/-0.10mm Wavelength Range::0.17 – 5.5µm Transmission::Tavg=85% dependant on substrate thickness

Sapphire is an incredibly hard crystal (HK1370kg/mm2), second only to diamond. Fluoresence free sapphire windows have high mechanical strength, thermal and chemical resistance and is scratch resistant, making it very desirable for operating in harsh conditions. Sapphire windows can be made thinner than alternative crystals thanks to its structural integrity and can operate up to 2030⁰C. The material transmits between the UV and IR at 0.15-5.5µm, and has a high refractive index of 1.75.. Knight Optical supply a range of quality Sapphire optical components including Fluoresence free sapphire windows, Sapphire lenses, Sapphire prisms, and Sapphire blanks either from stock or bespoke custom made to your specification for a range of applications.  Our current range includes Random Polarization Sapphire that can be used for most applications apart from UV use. Click link URL to read more …

Exhaled Breath = 78.04% Nitrogen + 13.6%-16% Oxygen = CO2 Car Exhaust = Carbon Dioxide + Carbon Monoxide + Sulphur Dioxide + Nitrogen Oxides + Hydrocarbons How do we know this? Gas detection in Continuous Emission Systems (CEMS), combustion analysers and environmental monitoring are key to ensuring that the world we live in is monitored for its pollution and environments we work in are safe to do so as gases can be detrimental to life. Knight Optical provide a number of optical components that are used in Gas Detection Systems. We can also provide interference bandpass filters that work within the IR, front surface mirrors, gas cells and singlet lenses and window made from Germanium (Ge), Calcium Fluoride (CaF2), Silicon (Si), Quartz/ Fused Silica, Magnesium Fluoride (MgF2) and Sapphire (Al2O3). Read PDF for more information …. Diameter Range: :less than 5mm to 300mm Diameter Tolerance: :better than ± 0.1mm Thickness Tolerance::+/- 0.2mm Clear aperture: :90% Centration tolerance::better than 1 arc minute Form error::better than 0.5 wave (633nm) over aperture Surface radius tolerance: :less than 1 fringe over aperture Surface quality::< 40-20 scratch/dig Coating::AR/DLC (Diamond like coating @ 1-14μm)

Knight Optical can offer you the solution for your CCTV Cameras! CCTV Systems use Germanium Windows for their properties which make them ideal for thermal imaging and night vision use. Germanium Material offers excellent transmission across the IR wavelength range. Making it ideal for use within Thermal Imaging Cameras; which are used extensively in CCTV applications. Germanium typically operates in the 2µm to 14µm spectral range; that covers the LWIR (8-12μm) and MWIR (3-5μm) thermal imaging wavelength range. Our Germanium windows are available from stock, custom size and shape with Anti-Reflection coatings on one or both sides, and/or with Hard Carbon Diamond coatings. Custom coatings for Germanium windows available on you request and to your specific requirement with diameters up to 300mm diameters. Read PDF for Info Diameter Tolerance: :Up to 300mm +0, -0.02mm Thickness Tolerance::+/- 0.2mm Flatness::< 2 waves over 90% aperture Surface Quality::< 40-20 scratch/dig Parallelism: :5 arcmin Coating::AR/DLC (Diamond like coating @ 7-14 micron)

Knight Optical offer a range of Stock BK7 Windows, for use within Wind Monitoring LiDAR Systems. These LiDAR systems are used in monitoring wind speeds and wind direction. The data accumulated can be used to generate a Digital Terrain Model or a Digital Elevation Model which are 3D representations of terrain. BK7 is one of the most widely used optical glasses available for use in the range from visible up to the near infrared. Making it ideal as a protective optical window for Wind LiDAR systems which operate at 1500-1560nm. The BK7 can offer an uncoated average transmission of 92% between 300nm and 2000nm. SEE PDF for Full Details Material::N-BK7 or equivalent Diameter Tolerance::+0.0/-0.15 mm Length/Width Tolerance::+/- 0.10mm Thickness Tolerance::+/-0.10mm Transmission::Tavg=92% dependent on substrate thickness

Knight Optical can offer transmit and receive windows and mirrors for LIDAR systems using visible, NIR (0.9 to 1.5µm) and Mid-Waveband Infra-Red (MWIR, 3 to 5µm) light. Since the 1960s, scientists have used LIDAR (light detection and ranging) to study the atmosphere. Short pulses of laser light are used to detect particles or gases in the atmosphere, like a radar bounces radio waves off rain drops in clouds. A telescope collects and measures reflected laser radiation, like a radar dish collects the radar signal, leading to a profile of the atmosphere's structure along the path of the laser beam. Researchers can then determine the location, distribution, and nature of atmospheric particles and molecular species using an advanced LIDAR method called the Differential Absorption Lidar (DIAL) technique. Read PDF for more information Material::BK7, Borosilicate, Quartz, Fused Silica or Sapphire (AL2O3) Diameter Tolerance::+0.0/-0.20 mm Length/Width Tolerance::+/- 0.10mm Thickness Tolerance::+/-0.10mm Wavelength Range::0.17 – 5.5µm Transmission::Tavg=85% dependant on substrate thickness

Knight Optical offer a range of Stock N-BK7 Precision Grade Windows, for use with Thermal Imagining Cameras. Infrared radiation is characterised by the wavelengths ranging from 750nm to 1000µm. Although typically used for the visible range, N-BK7 does have transmission within the near infrared spectrum also. Where IR materials such as Germanium are limited to a small band in the IR spectrum, N-BK7 works well throughout the entire visible and into the NIR, making it a perfect material for a protective window for using within a Thermal Imaging Camera. A low cost material, it is perfect substrate for your protective window. We can supply both stock and custom N-BK7 windows to protect your thermal imaging application. The high optical quality and uniform transmission of N-BK7 as well as low absorption in the entire visible wavelength range is a key feature for this application. For more information read PDF Material::N-BK7 or Equivalent Diameter Tolerance::+0.0/-0.15mm Length/Width Tolerance::±0.1mm Thickness Tolerance::±0.1mm Flatness::>λ/4 over 90% aperture Surface quality::<40/20 Scratch/Dig Parallelism::1 arc minute Coating::Windows with the suffix “AV2” are coated on both faces with our extended broadband multilayer antire

Germanium windows, in IR sensors, medical apps, pyrometry & IR imaging systems - Are you looking for a popular high refractive index and good IR transmission range material covering from 1.8-16µm? Here we are; Knight Optical’s Germanium glass material is ideal for your IR applications with its broad transmission range and opacity in the visible portion of the spectrum. Our Germanium windows are not only used in IR sensors, medical applications, and pyrometry; but also in IR imaging systems, and thermographic cameras. Typically operating in the 2µm to 14µm spectral range; that covers the LWIR (8-12μm) and MWIR (3-5μm) thermal imaging wavelength range. Our Germanium windows are available from stock, custom size and shape with Anti-Reflection coatings on one or both sides, and/or with Hard Carbon Diamond coatings. Read our PDF for more details... Material::Germanium Diameter Tolerance::Up to 300mm +0, -0.02mm Thickness Tolerance::+/- 0.2mm Flatness::< 2 waves over 90% aperture Surface quality::< 40-20 scratch/dig Parallelism::5 arcmin Coating::AR/DLC (Diamond like coating @ 7-14 micron)

Knight Optical offer a range of Stock Sapphire Windows, and custom for use within Airborne LiDAR Systems. These are systems used in surveying for topographical measurements. The data accumulated can be used to generate a Digital Terrain Model or a Digital Elevation Model which are 3D representations of terrain. Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Making it ideal as a protective window for airborne systems which may be utilised in harsh environment or against birds! Sapphire is grown by various methods from seed samples. Sapphire can be polished to a high standard, but as it is the second hardest mineral on Earth it must be subject to high forces to polish. Therefore, windows made from Sapphire must have a thickness to diameter ratio of at least 10:1, that is, greater For more information read PDF…. Material::Sapphire (AL2O3) Random or C-Cut grades Diameter Tolerance::+0.0/-0.20 mm Length/Width Tolerance::+/- 0.10mm Thickness Tolerance::+/-0.10mm Wavelength Range::0.17 – 5.5µm Transmission::Tavg=85% dependant on substrate thickness Surface quality: :<40-20 scratch/dig Coatings::AR coating options to meet your wavelength requirements

Knight Optical can offer Lithium Fluoride Windows for use within UV Applications. We supply a range of lithium fluoride windows for a range of applications. All individually QA checked &metrology tested for quality to ensure parts meet customer specification. Supplied in a range of sizes & shapes with custom coatings tailored to meet your individual applications. Knight Optical supply precision optical components to customers using UV optics such as UV lasers. UV lasers are beneficial in some applications as opposed to longer wavelengths such as infrared or visible light as they do not heat the areas around the target. This allows the laser the cut materials by breaking atomic bonds, rather than melting the material. Due to the large band gap for Lithium fluoride, it’s crystals are more transmittive to short wavelength UV radiation than any other material and are ideal for use in X-Ray monochromators, as for use in VUV, UV, Vis and IR spectrums. Read PDF for more info…. Material::Lithium Fluoride (LiF) Shape::LiF Circular Windows, LiF Square Windows Dimensional Tolerances::+/- 0.1mm Parallelism::< 3 arcminutes Surface quality::<60-40 Scratch/Dig Coating::Antireflective coatings for application bandwidth (if required)