Card – picture – or sign exhibiting – Illuminated sign – Edge illuminated
Patent
1979-09-06
1981-07-21
Pitrelli, John F.
Card, picture, or sign exhibiting
Illuminated sign
Edge illuminated
340380, 350 9625, G09F 1318
Patent
active
042790891
ABSTRACT:
This invention relates to an optical illumination device using optical fiber members. Basically, one of the respective ends of optical fiber members is opposed to a light source, with a filter disposed between the one end and the light source, the filter being movable across the path of incident light from the source to cause the other ends of the optical fiber members to illuminate with varying colors. In such basic arrangement, the optical illumination device of the invention is characterized in that the illuminating end side of a number of optical fiber members is disposed along the lateral surface of a significant-form representing member which represents a letter, figure or the like, so that the illuminating end surfaces of the optical fibers are positioned at the end edge of the significant-form member.
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patent: 4121206 (1978-10-01), Lemire
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