| 摘要 |
A plastic card approx. 3" x 2" on which are mounted 2 photographs, one of which is an ordinary Black & White Portrait, and the other similar but only viewable in U.V. light. They exactly match. The second image may be obtained by a processing sequence including bleach and redevelopment followed by a clearing agent. A company name or logo is printed on the card, as are the conditions of use. A signature panel is included for additional security, according to requirements. The whole card is assembled and laminated for durability, security and function. |
