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microscope

Stray Light Reduction in Industrial Optics

Getting to know the principles of stray light reduction is key to getting accurate measurements while working with your optical device. Whether it’s a telescope, microscope, a chronograph or even a spectrometer. If you use any of these optical instruments for important measurements or tests, get prepared to find out how to reduce stray light. Why…
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Black & White Thermal Control Coatings Comparison Experiment

ABSTRACT In space applications, thermal control, emissivity and absorptivity are critical factors to the optimum performance of space vehicles or satellites. Thermal control coatings (TCC) are designed to have specific radiative properties that are tailored for different specific missions. For example, for solar orbiters, a radiative surface coated with a white coating having low absorptance and…
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cryogenic infrared calibration target

A Cryogenic Infrared Calibration Target

Description: In a recent assessment of the performance of different absorptive coatings as compact cryogenic infrared calibration targets, Acktar Fractal Black products exhibited lower diffuse and specular reflectance over a range of frequencies. E. J. Wollack,a) R. E. Kinzer, Jr., and S. A. Rinehart NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA ABSTRACT Two variants…
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low reflectance at extreme ultraviolet euv

Low reflectance at Extreme Ultraviolet (EUV)

EUV Reflectivity measurements on Acktar Sample Magic Black S. Doring, Dr. K. Mann Laser-Laboratorium G¨ottingen e.V. October 28, 2011 Measurement report *Download now: Low reflectance at Extreme Ultraviolet (EUV)-PDF Introduction Using the EUV source of LLG, reflectivity measurements have been conducted on Magic Black Sample (Ref. #333) at a center wavelength of 12.98nm. The measurement proce-…
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Stray Light Solution

High Absorptance Coatings for GHGSat Nanosatellite

Vincent Latendresse, Jonathan Lavoie, Roman V. Kruzelecky and Wes Jamroz MPB Communications Inc, Pointe Claire, Quebec, Canada Dina Katsir and Keren Shabtai Acktar Ltd., Israel Victor Isbrucker Isbrucker Consulting Inc., Sturgeon Point, Ontario, Canada Jason McKeever GHGSat Inc. Montreal, Quebec, Canada GHGSat is building and will launch and operate the world’s first nanosatellite capable of monitoring…
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black coating

Qualification of Acktar Vacuum Black coating for space application

Description: This paper describes comprehensive testing carried out in order to qualify Acktar Vacuum Black coatings for space applications. Y. Miron Salomon(1), N. Ariel Sternberg(1) I. Gouzman(2), G. Lempert(2) E. Grossman(2) D. Katsir(3), R. Cotostiano(3), T. Minton(4) ABSTRACT Acktar™ black coatings are among the blackest coating known. The very low reflectivity of the Acktar coatings makes…
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Satellite

Acktar Magic Black Coating for the Challenging Environmental Conditions of METIS

  ABSTRACT A dedicated thermal-vacuum cycling test was conducted to qualify the ACKTAR Magic Black™ coating stability in the light of its use in the challenging environmental conditions involving the METIS instrument. Introduction In the context of ESA’s Cosmic Vision 2015-2025 scientific program, Solar Orbiter (SolO, see fig. 1) represents the first M-class mission, dedicated to…
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Hemispherical Reflectance and Emittance Properties of Carbon Nanotubes Coatings at Infrared Wavelengths

Description: In this NASA – Goddard paper the hemispherical reflectance and emmitance properties at IR wavelengths of experimental nano-tube coatings are compared with Acktar Fractal Black. A Fractal Black coated disc is used as a “black standard” in the measurements Hemispherical Reflectance and Emittance Properties of Carbon Nanotubes Manuel A. Quijada, John G. Hagopian, Stephanie Getty,…
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Thermal Infrared Spectrometer MERTIS for The Bepicolmbo Mission To Mercury

Zeh, T(1); Kaiser, S.(1); Lenfert K.(1); Peter, G.(2); Walter, I.(2); Hirsch, H.(2); Knollenberg, J.(2); Helbert, J.(2); K. Multhaup(3), H. Hiesinger(3); Gebhardt, A.(4); Risse, S.(4); Damm, C.(4); Eberhardt, R.(4); Baier, V.(5); Keßler, E. (5) (1)Kayser-Threde GmbH, Wolfratshauser Straße 48, 81379 München, Germany, [email protected] (2)Deutsches Zentrum für Luft- und Raumfahrt (DLR), Rutherfordstraße 2, 12489 Berlin, Germany (3)Institut für…
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Black oxide vs acktar vacuum black coating

What Exactly Is Black Oxide Coating And What Does It Do?

Black oxide coating is the process of coating ferrous materials, stainless steel, copper, copper based alloys, zinc, materials with a chemical coating process. It takes products, and it coats them in iron oxide. This provides many benefits. First, it reduces light reflection. This is beneficial because for products such as IR sensors, UV sensors, passive infrared…
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