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. 19, 1990
Filed:
Jan. 13, 1989
Mark Folsom, Hollister, CA (US);
Whittaker Ordnance, Inc., Hollister, CA (US);
Abstract
The novel optical explosive initiator employs a window of a new type. The window hermetically seals the initiator explosive and is a transparent preferably monolithic block or cylinder of glass or the like solid material having a mirrored convex entrance end in the configuration of a segment of a spheroid, paraboloid, ellipsoid or hyperboloid and having an unmirrored opening therethrough along the longitudinal axis of the cylinder. The opposite exit end of the cylinder is mirrored and is perpendicular to the cylinder longitudinal axis and is at least nearly flat, preferably entirely flat. It includes an unmirrored opening along the longitudinal axis of the cylinder. An optical fiber transmitting light, such a laser light, can be positioned adjacent to the entrance opening. Light passing therethrough and into the cylinder is reflected from the flat mirrored end back to the mirrored convex end and is focused to a concentrated beam of high intensity which focused beam then passes out the exit opening to an explosive initiator. Therefore, much less power is needed to initiate the desired explosive reaction.