Method of photographic transfer using partial exposures to negat

Details Method of photographic transfer using partial exposures to negat Method of photographic transfer using partial exposures to negat

1975-01-20

1976-04-13

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

With means to add charged solid or liquid particles to...

96 27R, 96 362, 96 44, G03C 504, G03C 506

Patent

active

039501701

ABSTRACT:
A method of photographic transfer of an original pattern onto a substrate having a photo-sensitive coating comprises carrying out repeated partial exposures which together make up a complete exposure, with the pattern being renewed after each partial exposure. Such renewing includes either relative movement between pattern and substrate or exchange of pattern members having the same pattern.

REFERENCES:
patent: 716939 (1902-10-01), Schmidt
patent: 2343586 (1944-03-01), Schufftan
patent: 3317320 (1967-05-01), Reber
patent: 3476561 (1969-11-01), Bertelsen et al.
patent: 3518084 (1970-06-01), Barson et al.
patent: 3536407 (1970-10-01), Sandlin
patent: 3598604 (1971-08-01), De Puy
patent: 3615466 (1971-10-01), Sahni
patent: 3647445 (1972-03-01), Burns
patent: 3823016 (1974-07-01), Di Fazio et al.
patent: 3843362 (1974-10-01), Di Fazio et al.

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