HAND-HELD DECODER CARD HAVING A PARALLAX BARRIER PORTION AND A LIGHT FILTERING PORTION AND METHOD OF MAKING SAME

摘要

The present document describes a hand-held decoder card for revealing information hidden in a printed material and information hidden in a color image and method of making the same. The hand-held decoder card comprises: translucent material having a parallax barrier portion comprising parallel barrier lines for revealing the information hidden in the printed material; and the translucent material having a light filtering portion comprising a light filter for revealing the information hidden in the color image. According to various embodiments, the hand-held decoder card is in a transactional card format. The card may include only the parallax barrier portion or the light filtering portion. Also, the hand-held card may be a monocoque card or a laminated card.