An unexpected discovery in a Harvard lab has led to a breakthrough insight into choosing an unconventional material, silica, ...

Optical Surfaces offers a variety of standard and custom precision flats manufactured of high-stability materials, such as glass, silica, and Zerodur glass-ceramic, in sizes ranging from 105 mm to 600 ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage ...

Optical Surfaces Ltd. is a leading manufacturer of large, high precision optical flats and coated flat mirrors including a range of non-circular shapes such as elliptical and octagonal. When the ...

Optical Surfaces Ltd, a leading supplier of high precision reference optical flats to leading research establishments and national standards laboratories worldwide, reports on growing demand for ...

Pewaukee, WI – Advanced Optics manufactures both single-sided and double-sided optical flats which may be used as a reference (test plate) against which the flatness of an unknown surface may be ...

Columbia engineers invent a flat lens that exclusively focuses light of a selected color—it appears entirely transparent until they shine a beam of light with the correct wavelength onto it, when the ...

Manufactured using optical fused silica for extra thermal stability, the 1/20 Wave Tech Spec optical flat mirror is available coated or uncoated. The mirror's primary surface is precision ground and ...

I HAVE tried the following experiment: A piece of optically flat crown glass 3·5 cm. long, and 1·5 cm. broad and 0·3 cm. thick, was supported on wood at the extreme ends, and the middle was loaded ...