| 摘要 |
Vacuum contact exposure holder (frame) for the printing and copying of films to films, of plates to the photosensitive supports (bases), and of prints of any type, the holder (frame) being of the type defining a vacuum chamber which can be opened or closed and in which the photosensitive element to be treated is placed, the holder (frame) including a peripheral seal and a vacuum source connected to the said chamber, the photosensitive element being placed on a support element before establishing the vacuum in the said vacuum chamber, characterised in that the support element consists of a flexible steel vacuum plate 9. <IMAGE>
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