Loading patent…
AssigneeElement Six Technologies Limited
InventorsHerman Philip Godfried, Geoffrey Alan Scarsbrook, Daniel James Twitchen, Evert Pieter Houwman, Wilhelmus Gertruda Maria Nelissen, Andrew John Whitehead, Clive Edward Hall, Philip Maurice Martineau
Estimating the term…
A CVD single crystal diamond material suitable for use in, or as, an optical device or element. It is suitable for use in a wide range of optical applications such as, for example, optical windows, laser windows, optical reflectors, optical refractors and gratings, and etalons. The CVD diamond material is produced by a CVD method in the presence of a controlled low level of nitrogen to control the development of crystal defects and thus achieve a diamond material having key characteristics for optical applications.
A CVD single crystal diamond material which shows a low and uniform optical scatter such that for a sample of a specified thickness of at least 0.4 mm the forward scatter at 1.064 μm, measured over a specified area of at least 1.3 mm×1.3 mm, integrated over a solid angle from 3.5° to 87.5° from the transmitted beam, is less than 0.4%, when measured at 20° C.
A CVD single crystal diamond material which shows at least one of the following characteristics when measured at 20° C.:
Dependencies are inferred from the claim text.