Patent ID: 6076293
Filing Date: 2000-06-20
Classification: G09F

Abstract:
In a sign for serial display in a repeating format of three discrete messages, the sign including:an array of side-by-side triangular sign message displays, each of the side-by-side triangular sign message displays having parallel side-by-side axes of rotation and three display surfaces joined at three apices for rotation about each respective axis of rotation, each display surface in correspondence with like display surfaces on side-by-side triangular sign message displays for permitting the array to display a discrete message when the array of the side-by-side triangular sign message displays is simultaneously rotated to present at the display surfaces a single message;a housing for support of opposite ends of the array of the side-by-side triangular sign message displays;each display surface having a message display side and an illumination side;apparatus for rotating the side-by-side triangular sign message displays;an improvement to the sign for serial display comprising:a lens placed at each of the three apices of each sign message display for receiving light and radiating light to the message display side; and,an array of slit light sources spatially separated from and aligned with the array of the side-by-side triangular sign message displays, each slit light source for radiating light to one of the lenses of the side-by-side triangular sign message displays whereby the illumination side of the display surface opposite the apex is illuminated.