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Looking to improve you medical system? Then look no further. Knight Optical presents to you their Dichroic colour filters range. These Dichroic colour filters are typically used in scientific instrumentation or/and medical systems in particular palm vein scanners, ophthalmic diagnostics, professional eye care equipment from optical equipment or ophthalmic instruments. Our Dichroic filters: • Have a hard dielectric coating and are designed to offer high transmission over a specific wavelength while reflecting all other wavelengths. •Offer superior contrast between transmitted and reflected wavelengths. Having a dielectric coating they are perfect for high power applications and do not show the strong fluorescence of certain glass filters. •Are temperature resistant and can be used to reflect heat away from hot lighting systems in addition to their colour correcting properties, unlike traditional polyester type colour filters that melt and distort under thermal conditions. Material::Borosilicate or equivalent, Sodalime Diameter::+0.0/-0.20 mm Length/width::+/- 0.25mm Thickness::+/-0.20mm Wavelength: :300nm-1200nm dependant on type Wavelength Accuracy: :+/- 5nm Transmission::Tmax=95% dependant on type and substrate

Description: Diathermy plate split with leadwire, Single use Universal, Monopolar grounding pad, universal / general, with 3m lead wire, 6.3mm plug, single use. NHS NPC Code: FDJ3088 Manufacturer Code: GP202D-AC-U No. of Items Per Box: 25 No. of Items Per Carton: 200 Order: Direct from ALXR, Blue Diamond E-Direct Medical supplies Medical equipment Medical devices Hospital supplies Surgical instruments Diagnostic equipment Laboratory equipment Medical consumables Rehabilitation equipment Mobility aids Home healthcare products Patient monitoring systems Emergency medical equipment Imaging equipment Dental equipment Veterinary equipment Disposable medical supplies Sterilization equipment Anesthesia equipment Respiratory equipment.

High performance, powderfree, nitrile single use disposable glove. Significantly stronger alternative to latex. ProductType:Hand Protection Glove Type:Disposable Nitrile Glove

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Lightweight, powderfree, singleuse gloves with textured fingertips. ProductType:Hand Protection Glove Type:Disposable Nitrile Glove

For injection of Oil or Grease. E.g Into Bearings or Seals. For connecting into a 4 Jaw Hydraulic Coupler Lube Injector-D with Snap-on Coupling Part No. 32 408 44 For injection of Oil or Grease:For injection into bearings or seals For connecting into a 4 Jaw Hydraulic Coupler:Snap-on Coupling

Here at D & R Racking we offer you the complete package; from design, manufacture, installation, planning application, specification for building regulations to fire protection. Mezzanine Floors offer the most cost effective and quick solution to your storage problems and D&R Racking can give you quality at affordable prices. A Mezzanine floor gains you extra space without the potential cost and bother involved in relocating. We will ensure that your floor is designed to specification and installed on time and on budget.

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Knight Optical can offer you Stock and Custom Colour Glass Filters, for use within Inline Cameras in a range of materials of brands such as Schott, Kopp and CDGM. Depending on the achievable wavelength and desired affect you need for the Inline Camera we can find a suitable material for your application. Colour Glass Filters are good for selecting a particular wavelength to be absorbed so that the high out of band blocking in achieved. With regards to the use in Inline Cameras, Colour Glass Short pass Filters are more desirable as they cut out the IR wavelengths mean the imaging is not saturated with the IR giving the image better clarity. Colour Glass Filters are polished sheets of special glass that have been cast with a dye. Colour Glass Filters generally are relatively cheap and very stable. The disadvantage with them is that they are only available in a relatively small number of variants, and so can be restrictive in shortwave selection. Read PDF for more Information…. Material::Colour glass Diameter::+0.0 / -0.20 mm Length / width::± 0.20 mm Thickness::± 0.20 mm Surface quality::<60-40 scratch/dig Parallelism::<3 arcmin

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

Precision grade plate beam splitters offer higher flatness and parallel specifications particularly useful in laser and imaging applications. Both faces of these precision beamsplitters are polished to a high degree of flatness of λ/4 and have excellent surface quality. Precision splitters are made from high quality optically polished BK7 with both surfaces controlled to a high degree of parallelism. Our stock ranges of precision beamsplitters are available for use in Visible, Near Infrared and Telecoms wavelengths with 50/50 split ratio. The beamsplitter coating is a high quality dielectric coating, the non-splitting face of the beamsplitter is multilayer antireflective coated to eliminate second face ghosting effects. For more information read the PDF Material::N-BK7 Diameter::+0/-0.1mm Length/width::+/-0.1mm Thickness:: +/-0.1mm Surface quality::<40:20 scratch/dig Flatness::λ/4 over 90% aperture (both faces)

Within medicine the use of polarized light was first introduced back in the70’s - Within medicine the use of polarised light was first introduced back in the70’s; since then it has come leaps and bounds. How it has been used to help with imaging skin pathologies, when the skin is illuminated by linearly polarised light it causes backscattering of the superficial layers of the skin where cancer often arises. This superficial backscattered light can be distinguished from the diffused reflected light when using a detector. Polarised Beam-Splitter Cubes, Sheet Linear Polarisers, and Sheet Circular Polarisers are often used within detection devices for this type of skin pathology imaging. Knight Optical hold a large inventory of Polarisers for use within Skin Cancer Detection devices. •We stock large sheets up to 1270x480mm in some cases; we can cut these into special shapes at short notice. •Mounting options are also available. •Special Glass laminating to CAB polarisers •Special AR coatings. Read PDF for more information 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° 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; P-Polarisation Transmission >90% S-Polarisation Reflectio

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 We can offer Custom Moulded Aspheric Lenses for use with Laser Diode Collimators. Aspheric lens surfaces are used to correct spherical aberration (where the converging light from a lens does not have a common focal point, resulting in a distorted image) in lasers and imaging. Traditional spherical lenses cannot collimate light effectively because even small angles of incidence can produce spherical aberrations. This can mean that several components may be required to get the desired result. The non-spherical surface of an aspheric lens allows a single component to effectively focus or collimate even highly divergent emissions, potentially replacing a multi-lens system with a single aspheric lens. Therefore Aspheric Lenses that are moulded are ideal for use within laser diode-to-fibre coupling applications. For more information read the PDF.. Typical specs::. Material::Optical Glass or Acrylic Overall Diameter Tolerance::+/-0.2mm Focal Length Tolerance::± <5% Surface quality::<60-40 Scratch/Dig Coating::Optional

Knight Optical can offer Ground Glass Diffusers for use within Photography. We supply a range of Ground Glass Diffusers 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 photography. Ground Glass Diffusers are used in to diffuse the flash from cameras to prevent photos with harsh light and hard shadows to soften and improve the appeal of the image. Diffusers are also used in lightning systems to prevent glare from computer screens, the manufacture of lightboxes for advertising, viewing x-rays, and other applications. For more information read PDF… Material::Borosilicate, UV Fused Silica Shape::Square Diffusers, Circular Diffusers Dimensional Tolerances::+/- 0.25mm Diffusion grades::from 3µm

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

Knight Optical are very experienced within the Thermal Imaging market, including anti-reflective and diamond-like-carbon coatings used on the optical components in these systems. Knight Optical know exactly what you are looking for. Thermal imaging uses infrared materials such as Germanium and Silicon, however in there raw form the transmission is not the best it could be. For example, Germanium typically transmits at <45% but with an AR coating applied, it can improve transmission to >60%. This increase in transmission means that the camera sensor receives a better signal through the protective window. Also with protective windows, we can provide high quality DLC coatings. We ensure the coating is Salt Fog Tested to MIL-SPEC standard to ensure that the coating withstands harsh environments. The coating has high mechanical hardness and high resilience to external stress. Read PDF for more information

As UVC sterilisation becomes more prevalent, Knight Optical can offer UV domes to house LEDs and LED arrays, as well as other light sources. We stock ready-to-order 50mm and 100mm UV fused silica domes with high transmission down to 185nm, meaning it encompasses the traditionally used UVC light sources – KCl excimer lamps (222nm), mercury lamps (254nm) and LEDs (265nm, 273nm and 280nm). Knight Optical can also provide custom domes, including with a flange for easier mounting, manufactured from UV fused silica. Also available are optical coatings to enhance the performance of the dome. Quality Assurance All optical components are tested in our state-of-the-art metrology laboratory to ensure they meet every specification, and then 100% visually inspected by our highly trained quality technicians. Knight Optical prides itself on the quality of our optical components, and you can be confident that our products will fit seamlessly into your UVC system.

Knight Optical We can offer Custom Moulded Aspheric Lenses for use with Laser Diode Collimators. Aspheric lens surfaces are used to correct spherical aberration (where the converging light from a lens does not have a common focal point, resulting in a distorted image) in lasers and imaging. Traditional spherical lenses cannot collimate light effectively because even small angles of incidence can produce spherical aberrations. This can mean that several components may be required to get the desired result. The non-spherical surface of an aspheric lens allows a single component to effectively focus or collimate even highly divergent emissions, potentially replacing a multi-lens system with a single aspheric lens. Therefore Aspheric Lenses that are moulded are ideal for use within laser diode-to-fibre coupling applications. For more information read PDF …. Material::Optical Glass or Acrylic Overall Diameter Tolerance::+/-0.2mm Focal Length Tolerance::± <5% Surface quality::<60-40 Scratch/Dig Coating::Optional

Knight Optical can offer Amici Roof Prisms for use within Imaging Industry. We supply a range of Amici Roof 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 Industry. Amici Roof Prisms are often used in the development of telescope eyepieces and endoscopes, where they revert and invert the image while redirecting the beam by 90 degrees. For more information read PDF … Material::N-BK7 or equivalent, UV Fused Silica, Dimensional Tolerances::+/- 0.2mm Angles::+/- 30 arc seconds Surface Figure: :< 0.5 waves Surface quality::< 40-20 Scratch/Dig

Knight Optical can offer Littrow Prisms for use within Laser Applications. We supply a range of Littrow 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 Laser Applications. Littrow Prisms are used near the end of an optical cavity of a laser system to finely adjust the output frequency by changing the AOI of the prism. For more information read PDF … Material::SF11 or equivalent, F2 or equivalent, UV grade fused silica Dimensional Tolerances::+/- 0.2mm Angles::+/- 1 arc minutes Surface Figure::< 0.5 waves Surface quality::< 40-20 Scratch/Dig Coating::Antireflective < 0.2% @ 550nm

Knight Optical can offer Light Guides for use within the Cosmetics Industry. We supply a range of Light Guides 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 Cosmetics Industry. Our Light Guides are the key element in cosmetic laser, or intense pulsed light (IPL) applications. IPL is a cosmetic application commonly used for hair removal. IPL application have requirements of different wavebands and so our custom light guides are available in a choice of materials and coatings to suit your waveband requirements. For more information read PDF… Material::N-BK7 or equivalent, Sapphire and UV Fused Silica Dimensional Tolerances::+/- 0.1mm Surface quality::< 40-20 Scratch/Dig Coatings::< AR Coatings available on request

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

We supply a range of Visible 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 Consumer Electronics. Our Linear Polarisers linearly polarise unpolarised light and can block light that is polarised in the opposite direction. Linear Polarisers are often used in the production of LCD monitor and TVs. The liquid crystals act like a wave-plate, rotating the polarisation axis allowing them to control the amount of light from each pixel. They are used in a similar way for a photographer to prevent surface reflections from water. Our polariser sheets allow different levels of total light from a randomly Read PDF for more information... Shapes: :Circular Polarisers, Square Polarisers Dimensional Tolerances::+/- 0.5mm Surface Quality: :< 60-40 Scratch/Dig

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