Spectrophotometer
CA 1108429 A · Owner: International Business Machines Corporation · Inventors: Korth, Hans-Erdmann; Schedewei, Franz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
SPECTROPHOTOMETER, Abstract, The spectrophotometer consists of a plate having a linear photodiode array and an entrance aperture, a lens 8 and a reflecting dispersing element preferably designed as an echelon grating. The entrance aperture is in the focal plane of the lens. Since all beams entering through the entrance aperture are directed by the lens in parallel to the optical axis all beams forming any angle of divergence, or enclosing any angle within the optical axis provided, these angles are smaller than the aperture angle of the lens can be, measured with the same sensitivity and the same resolution. GE9-77-013 DLM/Fl
Read the whole patent
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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
- 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.