Invention Grant
US07896250B2 Reading card 失效
读卡

Reading card
Abstract:
A reading card is provided having a reading lens portion that is integrally molded in a unitary form with a card base. The lens portion is formed so as to have a well-defined diopter rating. Preferably, the lens portion includes convexly curved, continuously smooth, opposite light refractive surfaces. Generally, the lens portion can be thicker than a thin, generally flat remaining portion of the card base. The reading card can be implemented in a credit or debit card size, or used as a key ring holder. Optionally, the reading card includes a light source.
Public/Granted literature
Information query
Patent Agency Ranking
0/0