Autonomous vehicles are expected to result in fewer road casualties and more efficient traffic. But driver assistance systems also protect lives. For a safe function of the optical sensors– the basis of autonomous driving-, the stray light must be certainly suppressed as far as possible. With a lane departure warning system, it is theoretically possible to…

Infrared radiation characterized by wavelengths ranging from 0.700 – 1050μm is no exception. Absorption and reflection of IR radiation on a specific surface can be altered with the help of coating. This article describes applications and characteristics of IR absorber coating in optical systems and a few other industries. A clear comparison has been made among…

We have always been fascinated by how engineering systems handle all sorts of critical environmental challenges. Whether it is NASA dealing with high temperatures (up to 1000 °C) caused due to friction between a space vehicle surface and atmosphere at a hypervelocity, or challenges in achieving accuracy of spectrometer, telescope or microscope, it is essential to…

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…

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…

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-…

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…

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…