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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...

We have over 10 Million Lines of Components in our Supply. Contact me on liamm@merefields.com

A broad variety of gas transmission cells are : Gas Cells analysis of gas & vapour phase components in IR optical spectroscopy. These range from short path length gas cells for percent level concentration measurement, to long path length gas cells for part-per-billion concentrations. Options include fixed and variable path length gas cells, as well as ambient temperature and heated gas cells. The windows that can be used with the gas cell include NaCl, KBr, CaF2, BaF2, or ZnSe infrared transmission windows, which are mounted in an optical spectrometer. Knight Optical supply high quality Gas Cells optical components made to our exacting specification. For more information read the PDF

We offer a Very Wide Range of Brands. Please send me an enquiry via liamm@merefields.com or enquires@merefields.com 

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

We have over 10 Million Lines of Components in our Supply. We Supply the FULL Range of Carlisle components Contact me on liamm@merefields.com

CX18SM crystals are designed for applications where miniaturization is paramount. The rugged crystal is ideally suited for a wide variety of high frequency applications including medical electronics, cardiac rhythm management, pacemakers for example. Also auitable for cochlear implants, infusion pumps and wildlife tracking. This is a Statek product designed and manufactured by Statek Inc, USA. Contact Euroquartz Sales or Technical for details. Ultra-miniature SMD package 1.55 x 0.95 x 0.35mm Frequency Range 30MHz ~ 100MHz High shock and vibration resistance Hermetically sealed Available with glass or ceramic lid Tight calibration tolerance Custom designs available Motional Resistance R (Ω):60 Motional Capacitance C1 (fF):1.2 QualityFactor Q (k):44 Shunt Capacitance C0 (pF):0.6 Standard Calibration Tolerance1:±100ppm or tighter as required. Load Capacitance:10pF (or as specified) Drive Level:200µW maximum Frequency Stability1,2 -10° to +70°C:±50ppm ±10ppm -40° to +85°C:±100ppm ±20ppm -55° to +125°C:±100ppm to ±30ppm Ageing, First Year:±5ppm maximum (Better than ±1ppm available) Shock, Survival:5000g, 0.3ms, ½ sine Vibration, Survival3:20g rms, 10~2000Hz swept sine Operating Temperature Range:-10°C to +70°C (Commercial) -40°C to +85°C (Industrial) -55°C to +125°C (Military) Storage Temperature Range:-55° to +125°C Maximum Process Temperature:+260°C for 20 seconds

CX9VSM crystals are leadless devices designed for surface mounting on PCBs or hybrid substrates. The crystals have a very low-profile (<0.94mm) and are suited for all low frequency applications. This is a Statek product designed and manufactured by Statek Inc, USA. Contact Euroquartz Sales or Technical for details. Frequency Range 32kHz to 160kHz High shock resistance Ultra-small ceramic package Low ageing Designed for low power applications Full MIL testing available Drive Level:0.5µW max Temperature Coefficient (k):-0.035ppm/°C2 Ageing, first year:5ppm max Shock, survival:5000g, 0.3ms, ½ sine Vibration, survival:20g rms, 10~2000Hz random Operating Temperature Range Commercial:-10° to +70°C Industrial:-40° to +85°C Military:-55 to +125°C Storage Temperature Range:-55° to +125°C Maximum Process Temperature:+260°C for 20 seconds

Knight Optical can offer Gelatine Neutral Density Filters for use in Photographic Applications. We supply a range of Gelatine Neutral Density 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 within Photographic Applications. Our Neutral Density Filters attenuate light neutrally over a wavelength range (usually 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 the desired effects. Often an ND filter will be used in conjunction with a long exposure to prevent washed out and overexposed images. For more information rread the PDF …. Shapes::Circular Filters, Square Filters Dimensional Tolerances::+/- 0.1mm Density::+/- 5% Surface Quality: :< 60-40 Scratch/Dig

X-O Wrap® Premium Metal-Guard® VCI Corrosion Protection Film is a top-tier packaging solution safeguarding metal components from corrosion during storage and transit. Engineered by Cortec®, a pioneer in corrosion control, this premium film offers unmatched protection against rust, tarnish, and oxidation.Its core, Metal-Guard® VCI technology, releases vaporous inhibitors forming a molecular shield on metal surfaces.Unlike traditional methods relying on desiccants or oils, X-O Wrap® provides contact-free protection, even in hard-to-reach areas. Crafted from durable, puncture-resistant polyethylene, the film is UV-stabilised for long-lasting performance.Versatile for various metals and applications, it's easy to use and environmentally friendly.By preventing costly corrosion, X-O Wrap® significantly reduces expenses.Combine it with Valdamark Direct's VCI products for a complete corrosion prevention system.Experience the future of corrosion protection with X-O Wrap®.

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, 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

The ultra-miniature 32.768kHz CXOXULP oscillators use an AT-Cut crystal for tight stability and also have a low current consumption, typically 15µA. A fast start-up time (15ms) and tight frequency stability (±30ppm to ±100ppm) over a wide temperature range. This is a Statek product manufactured by Statek Inc, America. Contact Euroquartz Sales or Technical for details. Ultra-low current consumption (typically 15µA) Fast start-up (typically 15ms) Tight Tolerance High Shock Resistance Low Ageing Full military testing available Frequency Range:32.7680kHz Supply Voltage:1.8V to +3.3 Volts ±10% Calibration Tolerance:±25ppm Frequency Stability over Operating Temperature Range Commercial (0° ~ +70°C):±10 to ±50ppm Industrial(-40° ~ +85°C): ±20 to ±100ppm Military Output Load (CMOS):15pF Ageing:±5ppm first year Shock, Survival:5000g, 0.3ms, ½ sine HG: 10,000g, 0.3ms, ½ sine Vibration Survival:20g, 10~2000Hz swept sine Rise and Fall Time:6ns maximum Supply Voltage:-0.3V to 5.0V Storage Temperature:-55° t +125°C Maximum Process Temperature:260°C for 20 seconds

We offer a Very Wide Range of Brands, please send me enquiry via liamm@merefields.com or enquires@merefields.com 

Miniature 4 pad SMD TCXO. Stability from ±1ppm -30°~+75°C. HCMOS square wave output. 'V' group TCXO characteristics. Frequency range 27.0MHz to 200.0MHz. RoHS Compliant. Miniature 4 pad SMD TCXO. Stability from ±1ppm -30°~+75°C. HCMOS square wave output. Frequency range 27.0MHz to 200.0MHz. RoHS Compliant. Product Series Code TCXO:EMV572T VCTCXO: VEMV572T Frequency Range:27.0MHz to 200.0MHz Output Waveform:Squarewave, HCMOS Initial Calibration Tolerance:<±2.0ppm at +25°±2°C Standard Frequencies:30.0, 32.768, 38.880, 40.0, 50.0, 54.0 Frequency Stability vs. Ageing:±1.0 ppm max. first year vs. Voltage Change: ±0.3 ppm max. Supply Voltage:+3.3 Volts Output Logic Levels:Logic High: 90% Vdd min. Logic Low: 10% Vdd max Current Consumption:40mA maximum Rise and Fall Times:10ns typica Duty Cycle:50%±10% standard Start-up Time:5ms typical, 10ms max Output Load:15pF Storage Temperature:-55~+125°C

DEUTSCH TERMINALS AVAILABLE ON OUR STOCK LIST - Please send me an enquiry via liamm@merefields.com or enquires@merefields.com

Merefields Supply a very wide range of JAE PARTS, please send email to liamm@merefields.com for a Quote. We have over 10 Million Lines of Components in our Supply!

WE STOCK A LOT OF HONEYWELL PRODUCTS  HONEYWELL RANGING FROM SENSORS , Potentiometers, SWITCHES, WIRE AND MORE.  Please send me an enquiry via liamm@merefields.com or enquires@merefields.com

We offer a Very Wide Range of Brands, please send me enquiry via liamm@merefields.com or enquires@merefields.com 

Merefields Supply a very wide range of HONGFA PARTS, please send email to liamm@merefields.com for a Quote. We have over 10 Million Lines of Components in our Supply!

We offer a Very Wide Range of Brands, please send me enquiry via liamm@merefields.com or enquires@merefields.com 

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 …

Knight Optical can offer you Custom Sapphire Cylindrical Lenses, for use within Endoscopes. We supply a range of Sapphire options for a variety of applications – all individually QA checked and metrology tested for quality to ensure parts meet customers’ specifications. What’re more, our Sapphire Cylindrical Lenses are supplied in a range of sizes and shapes with custom coatings tailored to meet your individual applications. 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 camera systems. Cylindrical lenses are designed to focus light into a straight line, rather than to a single point. As the name suggests, the lens surface has a cylindrical shape rather than the usual spherical formation, which allows for one-dimensional shaping of light along a line. Cylindrical lenses are often used to change the profile of laser beams; for example Read PDF for more info Dimensional tolerance: :+/- 0.1mm Figure (sphericity)::1λ Focal Length Tolerance::± 0.2% (<10mm) Wavelength Range::0.17 – 5.5µm Surface quality::<40-20 Scratch/Dig Coating::A range of Anti-Reflective (AR) coating options

WE STOCK LOADS OF LITTLEFUSE PARTS. OUR RANGE IS FUSES, SENSORS, RELAYS AND SEMICONDUCTORS / DISCRETES. Please send me an enquiry via liamm@merefields.com or enquires@merefields.com

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

WE HAVE LOADS OF TDK IN STOCK. TDK CAPACITORS / SEMICONDUCTORS Please send me an enquiry via liamm@merefields.com or enquires@merefields.com

Knight Optical can supply you with a custom made Diamond turned aspheric lenses for use within Thermal Imaging Cameras. We supply a range of diamond turned aspherics 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. Thermal Imaging Cameras work similarly to traditional visible camera systems; while traditional cameras form images using visible light; thermal cameras form images using infrared radiation; operating in wavelengths as long as 14µm. Spherical aberration occurs in common singlet lenses, which results in an image that appears distorted, aspheric lenses correct spherical aberration. An aspheric lens surface is designed non-spherical, which allows a single component lens to collimate or focus highly divergent rays, Read PDF for more information… Material::Germanium, ZnSe, Caf2, Silicon, Zinc Selenide (For LWIR) Diameter::Up to 200mm dia +0, -0.02mm Thickness::+/- 0.2mm Flatness::< 1/2 wave over 90% aperture Surface Quality::< 40-20 scratch/dig Parallelism::5 arcmin Coating::AR/DLC (3-5 micron, 7-14 micron, 10-12 micron)

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

Unwanted hair, be gone! Knight Optical offer a range of Stock Dichroic Filters, for use within IPL Applications. Intense Pulsed Light filters are essential to IPL applicators as they are used to filter out the UV wavelength range; and transmit between 400-1200nm for use within cosmetic lasers that are designed to remove unwanted hair, vascular treatment and even acne treatment. These IPL Filters are often stacked between sapphire windows within the IPL applicator to offer a more defined wavelength spectrum when in use. Dichroic filters consist of thin film dielectric coatings on glass, and are designed to offer high transmission over a specific wavelength while reflecting all other wavelengths, having negligible absorption. The dielectric coating is perfect for high power applications, and does not show the strong fluorescence of certain glass filters. We hold a massive inventory of Bandpass, Long pass, Short pass, Band-blocking and Colour-correction filters. Diameter Tolerance::Borosilicate or equivalent, Sodalime Length/Width Tolerance: :+/- 0.25mm Wavelength Range::300nm-1200nm dependant on type Wavelength Accuracy: :+/- 5nm Thickness Tolerance: :+/-0.20mm Transmission: :Tmax=95% dependant on type and substrate

A miniature 4 pad SMD TCXO (EM572T) or VCTCXO (VEM572T). Stability from ±0.5ppm. HCMOS square wave output. RoHS compliant. For a CMOS TCXO from 40MHz to 156MHz see part EML572T. A miniature 4 pad SMD TCXO (EM572T) or VCTCXO (VEM572T). Stability from ±0.5ppm. HCMOS square wave output. Frequency range: 1.25MHz to 40.0MHz Supply voltage 2.5, 3.0 or 3.3 Volts For a CMOS TCXO from 40MHz to 156MHz see part EML572T Product Series Code TCXO:EM572T VCTCXO: VEM572T Frequency Range:1.25MHz to 40.0MHz Output Waveform:Squarewave, HCMOS Initial Calibration Tolerance:<±2.0ppm at +25°±2°C Standard Frequencies:10.0, 12.8, 13.0, 14.47456, 16.384, 19.2, 19.440, 19.68, 20.0 Frequency Stability vs. Ageing:±1.0 ppm max. first year vs. Voltage Change: ±0.3 ppm max. ±5% Supply Voltage:+2.5, +3.0 or +3.3V Output Logic Levels:Logic High: 90% Vdd min. Logic Low: 10% Vdd ma Rise and Fall Times:10ns max Duty Cycle:50%±10% standard, 50%±5% option Start-up Time:5ms typ., 10ms max Current Consumption at +2.5V supply: 10mA max. at +3.0V supply:13mA max. at +3.3V supply: 13mA max. at +5.0V supply: 27mA max Output Load:15pF Storage Temperature:-55~+125°C