| 摘要 |
Data cards are formed by writing a succession of latent images on a first web (13) of photosensitive film, developing (25) the film and then joining the film (13) with a web (31) of high resolution laser optical recording tape. The webs, (13, 31) may be joined in either back-to-back or front-to-back relationship. In the first case there is an eye readable image on one side and formatted optical recording tape on the opposite side. In the second case an eye readable image is optically adjacent optical recording tape, but on different layers, with both readable from the same side through a transparent substrate or base. The composite web is cut transversely (53) to its lengthwise dimension into a plurality of wallet size members (55). Bar code is recorded together with the latent image so that in checking cards for quality control purposes, defective cards may be correlated with particular images in order that a defective card be recreated. The high resolution optical recording tape is preformatted with continuous servo tracks or data location grids without header information so that registration of the eye readable images and the laser recording tape is not necessary. <IMAGE> |
