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Title: Method of making an integral window hermetic fiber optic component

Abstract

In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam. 9 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
EG & G Mound Applied Tech
Sponsoring Org.:
USDOE
OSTI Identifier:
403672
Patent Number(s):
5,573,565
Application Number:
PAN: 8-262,125
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
AC04-88DP43495
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 12 Nov 1996
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; PYROTECHNIC DEVICES; FABRICATION; OPTICAL EQUIPMENT; LASER RADIATION; FIBER OPTICS; TEMPERATURE DEPENDENCE; IGNITION

Citation Formats

Dalton, R D, Kramer, D P, Massey, R T, and Waker, D A. Method of making an integral window hermetic fiber optic component. United States: N. p., 1996. Web.
Dalton, R D, Kramer, D P, Massey, R T, & Waker, D A. Method of making an integral window hermetic fiber optic component. United States.
Dalton, R D, Kramer, D P, Massey, R T, and Waker, D A. Tue . "Method of making an integral window hermetic fiber optic component". United States.
@article{osti_403672,
title = {Method of making an integral window hermetic fiber optic component},
author = {Dalton, R D and Kramer, D P and Massey, R T and Waker, D A},
abstractNote = {In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam. 9 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {11}
}