The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2010
Filed:
Jul. 01, 2005
Christopher T. Cotton, Honeoye Falls, NY (US);
Christopher T. Cotton, Honeoye Falls, NY (US);
Other;
Abstract
An optical diffraction grating having a superior ultra-precise non-planar surface shape desired in extremely sensitive and complex optical imaging devices (e.g. spectrometers or hyperspectral imagers) is provided. The optical diffraction grating comprises a substrate having a plurality of substantially parallel grooves, wherein each of the grooves includes a plurality of substantially parallel sub-grooves. A non-planar substrate surface shape is defined by a combination of the grooves. A groove profile is defined by a combination of the sub-grooves within a corresponding one of the grooves. In a preferred method of manufacturing the optical diffraction grating, a rotating spindle technique would be employed.