Dynamic light scattering apparatus
CA 1316706 C · Owner: The Secretary Of State For Defence Of The United Kingdom Of Great Britain And Northern Ireland · Inventors: Brown, Robert George Watling
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dynamic light scattering apparatus comprises a laser optically coupled to a light scattering sample via a first monomode optical fibre and a first lens. The lens produces a beam waist in the sample, and scattered light is collected by a receive lens and a second monomode optical fibre. The second fibre has an end face in the Fourier plane of the receive lens and defines an aperture matched, to a single Airy disc of the lens. The receive fibre accordingly receives a single spatial mode of light scattered from the sample this mode corresponding to a, single plane wave to which many scatterers contribute. The receive fibre also attenuates unwanted spatial modes because of its monomode …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted April 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 27, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.