https://researchportalplus.anu.edu.au/en/publications/reflective-optics-for-redirecting-convergent-radiative-beams-in-c/
Reflective optics for redirecting convergent radiative beams in concentrating solar applications -...
reflective opticsconcentrating solarredirectingconvergent
https://www.edmundoptics.com.tw/p/iso-14524-reflective-camera-contrast-chart-58944/15692/
ISO-14524 Reflective Camera Contrast Chart | Edmund Optics
ISO-14524 Reflective Camera Contrast Chart used to determine the optical density range that an imaging system can capture are available at Edmund Optics.
isoreflectivecameracontrastchart
https://www.edmundoptics.ca/p/od-03-vis-25mm-dia-non-reflective-nd-filter/17997/
OD 0.3 VIS, 25mm Dia. Non-Reflective ND Filter | Edmund Optics
Non-Reflective Neutral Density (ND) Filters used to evenly attenuate a source, while preventing back reflections are available at Edmund Optics.