Triboluminescent tamper-indicating device

Patent · Tue Jan 01 04:00:00 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
• 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

/116/215/
activity
adjusted
allow
ambient
ambient light
assembled
assembly
attached
bearing
chamber
cylindrical
damages
described
destroy
device
entering
exposing
film
generated
hasp
holds
image
inserted
layer
light
luminescent material
manipulated
material
materials
opaque
opposite
optical
optical assembly
outer
passing
photographic
piece
positioned
prevent
prevents
reach
recess
storing
tamper-indicating
tampering
translucent
transparent
triboluminescent
undeveloped