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. 12, 2007
Filed:
Apr. 29, 2005
James A. Arns, Saline, MI (US);
James A. Arns, Saline, MI (US);
Kaiser Optical Systems, Inc., Ann Arbor, MI (US);
Abstract
A grism based upon a grating with a given line frequency is configured such that a design wavelength will undergo either a specific total bend angle, a zero-degree total bend without lateral displacement, or a zero-degree total bend with a lateral displacement. Each configuration exhibits the same dispersion characteristics. Other design wavelengths, bend angles and displacements are possible through appropriate adjustment of grating frequency, prism geometry, and/or material(s). A specific design is disclosed using light with a +/−delta wavelength around a design wavelength of 795 nm. The invention may be used to disperse light at different wavelengths, including wavelengths associated with optical communications bands.