Patent ID: 7388486
Filing Date: 2008-06-17
Classification: G06F,G08B

Abstract:
1. An optical anti-tamper system, the system comprising: at least one array of light sources located within a chassis; at least one array of photosensitive elements located within the chassis, the array of photosensitive elements in communication with an alarm, wherein the alarm is operable to transmit a tamper-event warning signal if an increased light level is detected by at least one array of photosensitive elements; an opaque layer located between the array of light sources and the array of photosensitive elements, the opaque layer operable to prevent light emitted from the array of light sources from being incident on the array of photosensitive elements when in an unbroken state; and a transparent layer located between the array of light sources and the array of photosensitive elements, the transparent layer operable to break the opaque layer when a protected component positioned adjacent to the transparent layer is touched during a tampering event so that the opaque layer is in a broken state, wherein the array of light sources and the array of photosensitive elements are positioned so that the light emitted from the array of light sources is incident on the array of photosensitive elements when the opaque layer is in the broken state.