Non-reflective coating - Import export

Metallic reflection coatings enhance reflection and are used in many optical instruments for light deflection. We coat glass, metal and plastic. The choice of coating material depends on the reflection requirements in the defined wavelength range. We use aluminium, gold, silver and chromenickel, either with or without protection coating for the VIS, UV and IR ranges.

Coating substrates is one of our core competences. We have been coating precision optic components with optically effective layers ever since 1948. Over the years, technical specifications and possibilities have radically changed. We now have several highvacuum plants, an ultrasound cleaning and drying plant at our disposal to treat the substrates. We also build our own equipment e.g. for asymmetrical prisms. Coated substrates are inspected and documented with a "Lambda 900" PE spectral photometer. Antireflection coatings

Our product range comprises objectives with focal lengths from 5 60 mm. Our objectives are all coated with a reflectionreducing coating and are computed and optimized for the intended application. Of course, we also design and compute customized objectives and systems to meet your special requirements.

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

reflective coatings, aluminium coating, aluminium mirror, silver coating, silver mirror, gold coating, gold mirror

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 …

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

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

These dispersing equilateral dispersing prisms have a very simple triangular cross section. Equilateral dispersion prisms are commonly used for wavelength separations, i.e. refracting white light into a rainbow pattern effect. Depending on the material used equilateral dispersion prisms can be used over a wide range of wavelengths. We offer UV Fused silica prisms for use in the ultra-violet wavelength from 170nm and other high index materials which are used for visible applications. Antireflective coatings are applied to most of our high index grade of equilateral dispersion prisms as high index material is sceptical to staining and corrosion which anti-reflective coatings eliminate. Antireflective coatings also help to improve output of the light as they prevent light loss due to surface reflection. The exit beam is in general at an angle to the input beam, this angle depending on the prism material, the wavelength and the incidence angle READ PDF FOR MORE INFO

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...

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…

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.

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…

Reflectionreducing coatings increase the light transmission of optical systems. This is particularly important for the light intensity of multilens optical systems such as objectives. Another benefit of antireflection coatings is their capability to strongly reduce scattered light losses between the lenses. Our product portfolio covers single and multiplelayer antireflection coatings, antireflection coatings for laser applications and coatings for applications in ultraviolet (UV), visual (VIS) and infrared (IR).

Compared with conventional metallic reflection coatings, the advantages of dielectric reflection coatings are their climate resistance, mechanical stability and high reflection combined with relatively low absorption. These properties are crucially important for many optical applications involving extreme thermal and mechanical stress.

The deflection and separation of light beams in different intensities, directions or wavelength ranges can also be controlled by thinfilm vaporization. Either a metallic or a dielectric coating is chosen, depending on requirements and application. The abovementioned advantages of dielectric reflection coatings play a decisive role here, too.

TEXTALU® E is a thin wall glass fibre braid made of glass fibres with heat-reflecting aluminium coating. Its reflecting surface guarantees that the protective sleeve made of this high-performance material maintains a nearly constant interior temperature even under strongly fluctuating ambient temperatures. This non-ductile braid sleeve is ideal for protecting lines, cables and cable sets against radiation heat.

The price-performance winner among the rainwater-resistant A-stand! This rainwater resistant customer stopper is ideal for outdoor use in pedestrian zones or on the pavement. Through a deliberately offensive orientation in these areas of application, the poster outdoor stand generates the highest possible level of attention. This turns passers-by into potential buyers and the clientele is constantly expanding. The uniform, high-quality appearance is ensured by the silver anodised snap frames and the silver anodised frameworks. In order to effectively protect the inserted posters from rainwater, a rubber seal surround is mounted on the weather-resistant polystyrene back panels. The special profile technology used in this pavement sign also ensures extended protection. The anti-reflective cover sheets are made of UV-stabilised material to prevent the posters from fading. Furthermore, the anti-reflective coating of the films ensures that the inserts are much easier to read even in sunlight.

The uniform, high-quality appearance of this triangular stand is ensured by the silver anodised click frames and the silver anodised aluminium round tubes. The simple assembly is done by screwing the 3 click frames to the 3 stable ø 60 mm aluminium legs. In order to effectively protect the inserted posters from rainwater, a circumferential sealing rubber is mounted on the weather-resistant metal rear walls, in addition the cover foil is glued to the rear wall on a short side. The cover foils used are made of non-reflecting, UV-stabilised material to prevent the posters from fading. Furthermore, the anti-reflection coating of the films ensures that the inserts are much easier to read even in sunlight. The posters can be changed quickly by opening the click frame profiles at the front. The highlight of this display is that the complete rear wall with foil can be removed for even easier poster changing.

The all-rounder among the poster stands with slide-in frames shines with its high-quality workmanship and durability. With this double-sided poster display you direct the attention of your customers to the advertising message you present. Due to its elegant appearance, optionally powder-coated in black or anodized in silver, this display is ideal for using in sales and showrooms. Equipped with an opaque partition wall and 2 anti-reflective, UV-stabilised covers, this poster display can be fitted with your advertising posters on both sides. The UV stabilisation prevents fading of the posters and the anti-reflective coating improves legibility without light reflections. The quick and easy change of your posters is guaranteed by the slide-in technology on the upper short side of the display. After removing the partition wall and the covers, even panel materials up to 6 mm thick can be inserted.

This information stand has a total height of approx. 1800 mm. Due to its size, this stand is excellently perceived by people and visitors. As a pavement sign, it also draws the attention of passers by to your advertising message from both directions. We use only high quality materials for this poster stand. The base frame and click frame on both sides are made of silver anodised aluminium with chrome coloured rounded corners. The aluminium click frames are equipped with polystyrene back panels and anti-reflective and UV stabilised covers to protect the posters. The UV stabilisation prevents the posters from fading and the anti-reflective coating improves the legibility of the inserts without light reflection. The snap technology of the frames guarantees a quick change of the inserts.

Our nowadays lifestyle and its rather fast pace presents a sort of challenge to our eyesight. We expose our eyes to a number of negative factors. The most dangerous to eyesight are UV radiation and excess blue light emitted by screens of electronic devices. We have developed an effective way to transform these types of harmful wavelenghts of light into harmonized and beneficial radiation. This is possible thanks to special lenses in our eyewear that use the extraordinary properties of Fullerene C60 molecules. These lightweight eyeglasses resistant to fogging and scratching, are also covered with an anti-reflective coating. Hyperlight Eyewear computer glasses will allow you to safely take full advantage of the beneficial properties of the light reaching your eyes. When outside you will gain protection against harmful UV light, and while working - greater comfort, increased focus, memory and efficiency.

Our nowadays lifestyle and its rather fast pace presents a sort of challenge to our eyesight. We expose our eyes to a number of negative factors. The most dangerous to eyesight are UV radiation and excess blue light emitted by screens of electronic devices. We have developed an effective way to transform these types of harmful wavelenghts of light into harmonized and beneficial radiation. This is possible thanks to special lenses in our eyewear that use the extraordinary properties of Fullerene C60 molecules. These lightweight eyeglasses resistant to fogging and scratching, are also covered with an anti-reflective coating. Hyperlight Eyewear computer glasses will allow you to safely take full advantage of the beneficial properties of the light reaching your eyes. When outside you will gain protection against harmful UV light, and while working - greater comfort, increased focus, memory and efficiency.

Our nowadays lifestyle and its rather fast pace presents a sort of challenge to our eyesight. We expose our eyes to a number of negative factors. The most dangerous to eyesight are UV radiation and excess blue light emitted by screens of electronic devices. We have developed an effective way to transform these types of harmful wavelenghts of light into harmonized and beneficial radiation. This is possible thanks to special lenses in our eyewear that use the extraordinary properties of Fullerene C60 molecules. These lightweight eyeglasses resistant to fogging and scratching, are also covered with an anti-reflective coating. Hyperlight Eyewear computer glasses will allow you to safely take full advantage of the beneficial properties of the light reaching your eyes. When outside you will gain protection against harmful UV light, and while working - greater comfort, increased focus, memory and efficiency.