Triboluminescent tamper-indicating device

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874456

Johnston, Roger G ^[1]; Garcia, Anthony R. E. ^[2]

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1. Los Alamos, NM
2. Espanola, NM

A tamper-indicating device is described. The device has a transparent or translucent cylindrical body that includes triboluminescent material, and an outer opaque layer that prevents ambient light from entering. A chamber in the body holds an undeveloped piece of photographic film bearing an image. The device is assembled from two body members. One of the body members includes a recess for storing film and an optical assembly that can be adjusted to prevent light from passing through the assembly and exposing the film. To use the device with a hasp, the body members are positioned on opposite sides of a hasp, inserted through the hasp, and attached. The optical assembly is then manipulated to allow any light generated from the triboluminescent materials during a tampering activity that damages the device to reach the film and destroy the image on the film.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: The Regents of the University of California (Los Alamos, CA)
• Patent Number(s): US 6394022
• OSTI ID: 874456
• Country of Publication: United States
• Language: English

Related Subjects

triboluminescent
tamper-indicating
device
described
transparent
translucent
cylindrical
material
outer
opaque
layer
prevents
ambient
light
entering
chamber
holds
undeveloped
piece
photographic
film
bearing
image
assembled
recess
storing
optical
assembly
adjusted
prevent
passing
exposing
hasp
positioned
opposite
inserted
attached
manipulated
allow
generated
materials
tampering
activity
damages
reach
destroy
optical assembly
luminescent material
ambient light
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