| 摘要 |
990,476. Photographic typecomposing. FILMKLISCKEE G.m.b.H. Feb. 6, 1962 [Feb. 14, 1961], No. 4586/62. Drawings to Specification. Heading B6W. A photographic typecomposing process for the direct production of text-matter comprises projecting with non-actinic light. on to a photographic material, the light-sensitive coating of which is impregnated with a developing solution, the image of the type character to be reproduced, adjusting the position of the character image on the material, e.g. with respect to other characters thereon, and then projecting an image of the character with actinic light on to the material whereby exposure and development are effected simultaneously. Preferably the photographic material is a paper or transparent base film with a light-sensitive coating of steep gradation and low-sensitivity such as a highcontrast silver chloride paper having a large threshold exposure value, the non-actinic light used is red light, and the exposing light is strong white light. The exposed and developed material is finally fixed. |
