| 摘要 |
<p>Photosensitive emulsion with Ag halide crystals contg. at least 2 halides i.e. iodide, bromide, chloride and Ag pptn. nuclei is used on surface of multi-coloured screen of material for additive colour photography. Due to different physical character, positive image derived from unexposed crystals has greater covering power than negative image derived from exposed crystals. Presence of pptn. nuclei in emulsion, rather than adjacent layer, improves Ag utilisation.</p> |
