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:
Dec. 11, 1979
Filed:
Jul. 15, 1977
Pietro Di Vita, Torino, IT;
Abstract
Signals, especially short pulses, are transmitted by way of a series of aligned light guides with internally reflecting boundaries (i.e. fibers or foils), with interposition of two identical transparent elements each refracting incident rays from the proximal guide end toward the remote guide end along paths which intersect the common guide axis at points near the center of the respective element for angles of incidence close to zero and at points near the center of the opposite element for angles of incidence close to a critical angle .THETA..sub.M << 1 (in radians). The transparent elements could be planoconvex lenses, which may be divided into Fresnel zones, or holograms; they could also be replaced by an optically equivalent transparent body whose refractive index varies along a generally parabolic law with increasing distance from the axis.