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Knight Optical can offer Cube Beamsplitters for use within the Scientific Industry. We supply a range of Cube Beamsplitters 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 scientific industry for use as components within spectrophotometers and interferometer. For interferometry, beamsplitters are used to separate light into two beams to compare a reference against a sample. Cube beamsplitters offer some advantages over plate beamsplitters in that they don’t suffer from ghost images and are easier to mount. For more information read PDF… Material::N-BK7 (or equivalent), UV Fused Silica Wavelength Ranges::Visible (400-700nm), NIR (630-1100nm), Telecom (1050-1700nm) Dimensional Tolerances::+/- 0.3mm Parallelism::< 3 arcminutes Surface quality::<40-20 Scratch/Dig Coating::AR coatings for application bandwidth on external surfaces

We supply a range of Wedge Prisms 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 Forestry. Wedge Prisms are used in a similar manner to an angle gauge, when plotting the basal area of a group of trees. Wedge prisms are also used in beam steering. All our Wedge Prism are fully inspected on their quality in our ISO 9001 certified, state-of-the-art Metrology laboratory, using our Starrett AV300 Video Imaging System and our Trioptics PrismMaster. This allows us to work to the highest QA standards and meet the tolerance specifications on these precision components. Read PDF for more... Material::N-BK7 or equivalent Dimensional Tolerances::+/- 0.15mm Angles::+/- 30 arc seconds Surface Figure: :< 0.25 waves Surface quality::< 40-20 Scratch/Dig Coating::A range of AR coatings are available for your chosen wavelength.

Knight Optical can offer Lithium Fluoride Lenses for use within UV Applications. We supply a range of lithium fluoride lenses 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 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. For more info read PDF… Material::Lithium Fluoride (LiF) Shape::Spherical Lenses, Cylindrical Lenses Dimensional Tolerances::+/- 0.1mm Parallelism::< 3 arcminutes Surface quality::<60-40 Scratch/Dig Coating::Antireflective coatings for application bandwidth (if required)

Binoculars and Periscopes invert an image to make an object appear closer. There are two types of prisms that can be used for binoculars: Porro and Roof Prisms. Porro prisms are used in a pair to create an optical path. The image would pass through the first prism and which then inverts the image, the second prism then flips the image, so it is making the distant object appear closer. Roof prisms work in a similar fashion however are one prism and this design performs in the same way. Used particularly for smaller compact spaces as there are aligned in one piece to its objective lenses. Knight Optical’s Porro and Roof Prisms are available from stock, manufactured from high quality BK-7 or equivalent. They are also available to custom specifications with our capabilities for the two types: •General Dimensions: 5mm to 300mm+ •Angular tolerance: <3arcseconds •Surface form: <1/10th wave @ 633nm •Surface quality: 10:5 •Coating options: AR or Mirror Read PDF for Info

Knight Optical can offer Gas Cells for use within the Chemical Analysis. - Knight Optical can offer Gas Cells for use within the Chemical Analysis. We supply a range of Gas Cells 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 the chemical analysis industry. Gas cells are used in spectroscopy for identification of the contents of gases. The path length and window material are chosen for analysis of different concentrations and types of gas. Depending on the types of gases being analysed, the windows in a gas cell can be made from NaCl, KBr, CaF2, BaF2, or ZnSe and will be chosen depending on bandwidth, to meet the customer’s application. All our Gas Cells are fully inspected on their quality in our ISO 9001 certified, state-of-the-art Metrology laboratory Material:NaCl, KBr, CaF2, BaF2, ZnSe or stainless steel bodies Shape:Short Path, Long Path, Variable Path Dimensional Tolerances::+/- 0.1mm Parallelism::< 3 arcminutes Surface Quality: :<60-40 Scratch/Dig Transmitted Wavefront Error: :< 0.25 λ PV@ 633nm

Knight Optical can offer Custom Homogenizing Rods for use within Electrical Instruments. Electrical instruments use backlight displays to help illuminate and evenly distribute the light source. They can be used as mixers, which is when you want to mix colours from multi-colour LEDs together. The light source will enter a light pipe at a variety of incident angles, which is designed to utilise its total internal reflection to help transmit light from the entrance of the light pipe to the exit. The material’s refractive index is the only factor which affects the light pipe’s critical angle; this defines the angle of acceptance at which the total internal reflection will occur. For more information read PDF Material::BK7 (or equivalent), UV Fused Silica or Other Optical Glass Length Tolerance::+/- 0.3mm Aperture Tolerance::+/-0.1mm Surface quality::<60-40 Scratch/Dig Coating::Optical

Optical Sorting Systems are a widely utilized technology used within the food industry; most particularly used in processing harvested foods such as fruits and vegetables, most notably potatoes, and nuts. Optical sorting was designed to help improve product quality, maximize throughput and increase yields. Within an optical sorting system there are four main components, the feed system, the optical system, the image processing software and last the separation system. The optical system utilizes lights and sensors housed above and below the flow of the products being inspected. It works by using a combination of light and sensors to illuminate objects; and to do this Beam-Splitters are one of the optical components used. Within the camera used in the system a Beam-Splitter cube is used to divide the light source coming from a single lens, into different channels; and each channel is filtered to a specific spectral region Read PDF for more data Material::N-BK7 or Equivalent; UV Grade Fused Silica Dimension Tolerances::+0, -0.02mm Flatness::<λ/4 over CA Surface quality::<40/20 Scratch/Dig Angles: :+/-1 arcmin Coatings::Visible and NIR Coating options available

Knight Optical can offer IR-cut filters for use in Heat Shielding. We supply a range of Custom and Stock IR-cut filters 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 with Heat Shielding requirements. Our IR-cut filters allow good transmission levels of visible light but cut off IR and UV radiation. Our precision grade filters have an AR coating to increase their visible transmission. In many systems that require heat shielding while still needing visibility an IR-cut filter can be used. These can attenuate infrared radiation and allow through visible light, allows your temperature sensitive equipment For more information read the PDF…… Material::Borosilicate Dimensional Tolerances::±0.2 Transmission::Tavg>90% 420-620nm (Standard Grade) Transmission::Tavg>94% 420-620nm (Standard Grade) Blocking::Tmax<2% 700-1000nm Wavelength Accuracy: :±10nm Surface Accuracy:60/40 (Standard Grade) Surface quality::60/40 (Standard Grade)

Knight Optical can offer Hot Mirrors for use in Heat-Sensitive Systems. We supply a range of hot mirrors for a variety of applications – all individually QA checked and metrology tested for quality to ensure parts meet customers’ specs. What’s more, our Hot Mirrors are 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 working with Heat-Sensitive Systems. Hot Mirrors are designed to transmit visible wavelengths and to reflect heat, causing infrared wavelengths. Hot mirrors have a sharp cut-off between Infrared (IR) and visible because they have a dielectric coating that can be controlled for different AOIs (most commonly 0°). For systems that require heat shielding while still needing visibility, hot mirrors can be used. These can attenuate IR radiation and allow visible light, which permits your temperature-sensitive equipment to be visible. Material::Borosilicate Shape::Circular Mirror, Square Mirror Dimensional Tolerances::+/- 0.1mm Parallelism::< 5 arcminutes Surface Accuracy: :< 5(2) @ 633nm Surface quality::< 40-20 Scratch/Dig

CMOS sensors are used within commercial grade Digital SLR cameras as a replacement for the more expensive CCD. These CMOS sensors are extremely sensitive to IR light, which can lead to discolouration. IR cut filters are used to block the IR light, meaning that photographs are taken with life-like colours. Colour Glass Filters can be used in variations of Bandpass, Long pass and Short pass, depending on which wavelengths of light need to be blocked resulting in different key areas being more easily distinguished. Knight Optical offers Colour Glass and IR cut filters for such an application, with a wide range of band widths and cut on/off wavelengths. As above these are available as Bandpass, Long pass or Short pass filters and we can also offer customised filters with coatings specific to the wavelength of your choice. We hold a massive inventory of IR cut, Bandpass, Long Pass and Short Pass filters: Read PDF for more info…. Material::Colour Glass and Borosilicate/D263T or equivalent Diameter::+0.0 / -0.20 mm Length/width::± 0.20 mm Thickness: :± 0.20 mm Surface quality::<60-40 scratch/dig or <20:10 for HD cameras Parallelism::<3 arcmin

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 Circular Sheet Polariser for use within Photographic Applications. We supply a range of Circular Sheet Polariser 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 Photographic Applications. Our Circular Polarisers consist of a quarter wave plate cemented to a linear polariser. While a linear polariser may be used to reduce glare during photography (such as reflection from the surface of a body of water), autofocus systems struggle to correctly focus on linearly polarised light. With the addition of the quarter wave plate, this has little impact on the intensity of incident light to the sensor, but it makes autofocussing much easier. For more information read PDF… Shapes: :Circular Polarisers, Square Polarisers Dimensional Tolerances::+/- 0.5mm

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 Heat Filters for use in Heat Sensitive Systems. We supply a range of heat Filters 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 Heat Sensitive Systems. Heat Filters are designed to transmit visible wavelengths to absorb or reflect heat causing infrared wavelengths preventing it from reaching your system. Care has to be taken in the design of systems using heat filters. Absorptive blockers will heat up with use and could result in damage to the filter. Reflective blockers will redirect the heat to another location in your system. For more information read PDF …. Material::Schott KG1, Dielectric Coated Borosilicate

Tiltwatch XTR® is a cutting-edge tilt and shock monitoring system safeguarding valuable cargo during transport and storage. Crafted by Tiltwatch, a pioneer in tilt and impact indicators, XTR® delivers precise real-time data to prevent product damage and ensure fragile goods arrive unharmed.XTR® Indicators are robust, self-adhesive labels applied directly to packages, containers, or equipment.Advanced multi-axis tilt sensors continually track the item's orientation, instantly recording any movement deviation.Available in various formats, standard XTR® Indicators offer visual alerts, changing colour when tilted beyond preset angles. XTR® Indicator Plus logs digital tilt data, accessible via USB.For comprehensive monitoring, XTR® Data Loggers provide wireless connectivity, real-time alerts, and cloud-based data management.These compact devices offer complete tilt, shock, and temperature tracking throughout the shipping journey.

Knight Optical can offer Fire-Polished Aspheric Lenses for use within Optical Systems. We supply a range of Fire-Polished Aspheric lenses 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 with Optical systems. Aspheric lenses are used to correct for spherical aberrations and can be as effective a multi-lens system while taking up less physical space and reducing weight and cost. As such these lenses are often used in military applications, such as night vision goggles or missile guidance systems For more information read PDF ….. Material::B270 or equivalent, Borosilicate Dimensional Tolerances::+/- 0.25mm Surface Quality: :< 60-40 Scratch/Dig Coating::Antireflective coatings for application bandwidth (if required)

Ball Lenses are widely used for focusing & coupling light into & out of fibres. With the high refractive index of Sapphire (Al2O3) material, it yields a low spherical aberration that can be used in the range of UV from 200nm up to 5µm, and with it being one of the hardest materials they are resistant to damage. The key feature of ball lenses is their short back focal length allowing for precision coupling where size or space is a limiting factor in the system. Typically used in pairs, where one lens acts as collimator for the second to focus the light back into the coupled fibre. Ball Lenses are manufactured from a single substrate of glad and therefore, depending on the geometry of the input source, can focus or collimate light. Half Ball Lenses can also be used as an interchange with a full ball lens for more compact designs. Read the PDF for more information... Material::BK7 or equivalent, Sapphire, Ruby, Quartz Diameter Tolerance::±2.5 Figure (sphericity)::1λ Focal Length (@587mm)::± 0.2% (<10mm), ±2.0% (10-1000mm), ±5.0% (>1000mm) Surface quality::<40-20 Scratch/Dig Back Focal Length (mm)::0.05 up to 2.34 for stock parts Focal Length (mm)::0.345 up to 7.34 for stock parts

Knight Optical can offer KG1 Filters for use in Heat Sensitive Systems. We supply a range of KG1 Filters 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 Heat Sensitive Systems. KG1 Filters are designed to transmit visible wavelengths to absorb heat causing infrared wavelengths preventing it from reaching your system. Care has to be taken in the design of systems using KG1 as the material is an absorptive blocker and will heat up with use. To help alleviate the heating issue, our KG1 filters are thermally toughened For more information read PDF ….. Material::Schott KG1 Shape::Circular Filter, Square Filter Dimensional Tolerances::+/- 0.1mm Parallelism::< 5 arc minutes Surface Accuracy: :< 5(2) @ 633nm Surface quality::< 40-20 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...

Knight Optical can offer Meniscus Lenses for use within Optical Systems. We supply a range of Meniscus lenses 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 with Optical systems. Any spherical surface will introduce spherical aberrations to an optical system. Meniscus lenses are designed with the curvatures of the lens in mind to minimise these spherical aberrations. This effect is more noticeable with higher index glasses as spherical aberrations increase with the change in index. Meniscus lenses can be an effective compromise on cost and aberration when compared to using aspheric lenses or multiple lens. Fore more information read the PDF…. Material::N-BK7 or equivalent, UV Fused Silica, SF11 or equivalent Shape::Positive Meniscus, Negative Meniscus Dimensional Tolerances::+/- 0.1mm Centering::< 3 arcminutes Surface quality::< 40-20 Scratch/Dig Surface Figure::< 5(1) @ 633nm Coating::Antireflective coatings for application bandwidth (if required)

Knight Optical can offer Rhomboid Prisms for use within Imaging Applications. We supply a range of Rhomboid Prisms 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 Imaging Applications. Rhomboid Prisms are designed to displace a beam laterally while maintaining its direction. Rhomboid prisms rely on total internal reflection and so do not often need to be coated For more information read the PDF… Material::N-BK7 or equivalent Dimensional Tolerances::+/- 0.2mm Angles::+/- 3 arc minutes Surface Figure::< 1 waves Surface quality::< 40-20 Scratch/Dig Coatings::< AR Coatings available on request

Protect your shipments with Shockwatch® Labels 2 Bundle from Valdamark Direct. This essential pack includes Shockwatch® impact indicators and companion shipping labels.Shockwatch® indicators are industry-leading, tamper-evident sensors detecting shocks and tilts during transit.A bright red fluid is released upon impact or tilt exceeding preset thresholds (2G-15G), alerting you and recipients to potential damage. The built-in tilt indicator reveals mishandling.Durable and weather-resistant, these labels feature strong adhesive for secure attachment.Companion shipping labels complement indicators with clear handling instructions."This End Up" arrows, "Do Not Stack" warnings, and "Fragile" reminders ensure proper care. Printed on high-quality, weather-resistant material, these labels adhere firmly.Together, Shockwatch® indicators and companion labels create a comprehensive monitoring and handling system.

Knight Optical can offer Cylindrical Lenses for use within Optical Systems. We supply a range of cylindrical lenses 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 with optical systems. Cylindrical lenses are designed to light to a straight line, rather than a point. Cylindrical lenses are often used to change the profile of laser beams, for example to correct for astigmatism and elliptic shape in diode lasers or to generate lines from single mode lasers. For more information read the PDF… Typical specs::. Material::N-BK7 or equivalent, UV Fused Silica, SF11 or equivalent Dimensional Tolerances::+/- 0.1mm Shapes::Diameter/Rectangular, Convex/Concave Centering::< 3 arcminutes Surface quality::< 40-20 Scratch/Dig Surface Figure: :< 5(1) @ 633nm Coating::Antireflective coatings for application bandwidth (if required)

Drop N Tell Labels / Damage Indicators. Valdamark Direct's Drop N Tell Labels are essential for safeguarding products during shipping. These innovative labels instantly reveal if a package has been dropped, tipped, or mishandled.A concealed indicator changes colour when exposed to sudden force, providing clear evidence of damage.Available in various sizes, the labels adhere easily to any packaging. Customisable activation thresholds cater to different product sensitivities.Optional features like date/time stamps and directional arrows offer additional insights.The tamper-evident design ensures reliability, while the bold labels deter mishandling.Compatible with all packaging materials, Drop N Tell labels are a user-friendly solution for businesses of any size. Valdamark Direct offers bulk discounts and a satisfaction guarantee.Safeguard your products with Drop N Tell.

Due to high intensity light from the laser, mirrors used with a laser application require a high damage threshold, and high reflectivity. Knight Optical can help! Laser mirrors are used to reflect or redirect the laser. This manipulation of the beam means it is great for laser applications where there is limited space, as the beam can be steered multiple times. We manufacture mirrors used in the UV/VIS/NIR and infrared. We provide a number of mirrors from stock with coatings at infrared wavelengths such as: Dielectric (98% NIR) Protected Silver (96% VIS/NIR) Protected Gold (97%@750-FAR IR) These are available to purchase from stock in a wide ranges of sizes from 6.3 mm in diameter to a 300mm x 300mm square and various different thicknesses. They are also available with varying flatness specifications with λ/10 also available for immediate shipment and for you to achieve the highest performance. Read PDF for full specification..

Knight Optical can offer you stock and custom lambda/10 mirrors for use in imaging applications, 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 Lambda/10 mirrors are used to produce a better quality signal from the mirror, resulting in a higher quality imaging. Read PDF for more information… Material::N-BK7 (or equivalent), Zerodur, UV Fused Silica, Borosilicate Shape::Circular, Square or rectangular Dimensional Tolerances::+/- 0.5mm Parallelism::< 3 arcminutes Surface quality::<10-5 Scratch/Dig Flatness:: λ/10 or λ/20 over 90% of mirror aperture Coating::A range of mirror coatings to suit your wavelength

Knight Optical We offer Stock Polarisers used in the visible range in cameras/photography. We supply a range of Polarizer options 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. Linear Polarisation can be split into P-Polarised (Light where the electric field is Parallel to the plane of incidence) and S-Polarised (Light where the electric field is Perpendicular to the plane of incidence) light, where a polariser can be used to eliminate one plane of polarisation. This is done to decrease ‘glare’ (reflections on the surface) when an image is being taken, and increase the contrast. This is used often with cameras to obtain ‘better’ image quality at the expense of an image that appears slightly darker. For more information read the PDF…. Material::N-BK7 or Equivalent Diameter Tolerance::+0.0/-0.25mm Length/Width Tolerance::±0.5mm (<100mm) ±1mm (100-400mm), nominal (>400mm) Axis direction: :±2°

KO can offer Metallic Neutral Density Filters for use in Photographic Applications. We supply a range of Metallic Neutral Density (ND) Filters for a variety of applications – all individually QA checked and metrology tested for quality to ensure parts meet customers’ specifications. What’s more, our Metallic ND Filters are supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. Our Metallic ND Filters reflect (with a metallic coating) light neutrally over a wavelength range (typically visual). They can be used to lower the intensity of light prior to the image plane. These are often used in photography, allowing photographers more flexibility with their setups to achieve desired effects. Often, an ND filter will be used in conjunction with a long exposure to prevent washed-out and overexposed images. They can also be used to add motion blur, reduce depth of field and to use a wider aperture. For more information read PDF… Shapes: :Circular Filters, Square Filters Dimensional Tolerances::+/- 0.1mm Flatness::< 5(1) @ 632.8nm Surface quality::< 40-20 Scratch/Dig

Knight Optical can offer Pellin-Broca Prisms for use within Atomic Spectroscopy. We supply a range of Pellin-Broca Prisms 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 Atomic Spectroscopy. Pellin-Broca Prisms are designed with a given material, angle and wavelength in mind to perfectly deviate a beam of the given wavelength by 90 degrees. These are often used to separate beams of differing colours and as such are ideal for use in optical atomic spectroscopy or to separate outputs of a multi-line laser. For more information read PDF…

Knight Optical can offer custom Rod Lenses for use within Optical Systems. We supply a range of custom & stock Rod lenses 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 with Optical systems. Rod Lenses are a special variant of cylindrical lenses so they focus light to a line. Rod lenses have an outside face that is polished and the ends are ground. Typical uses for rod lenses would be to generate a line image from a circular laser beam. Rod lenses can be cut at 45 degrees for use in beam steering and other similar applications. For more information read PDF ….. Material::N-BK7 or equivalent, Borosilicate, UV Fused Silica Shapes::Plane, 45° Dimensional Tolerances::+/- 0.1mm Centering::< 3 arcminutes Surface quality::< 40-20 Scratch/Dig Surface Figure: :< 5(1) @ 633nm Coating::Antireflective coatings for application bandwidth (if required) Mounting::Available on request