Optimized photoelectric card

Optimized photoelectric card

  • CN 2,296,039 Y
  • Filed: 06/25/1997
  • Issued: 10/28/1998
  • Est. Priority Date: 06/25/1997
  • Status: Active Grant
First Claim
Patent Images

1. , the photoelectric card of You Huaing, it is made up of the information hole (2) that has three row'"'"'s printing opacities on the opaque plastics substrate (1), the zone bit hole (3) of a printing opacity, the length and width that it is characterized in that each information hole (2) are of a size of 1.4-1.6 * 2.8-3.2mm, hole (2) is 3.8-4.2mm with the spacing in hole (2), and the line-spacing between every round (2) is 7.5-8.2mm.

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