Micrographics - duplicating film , silver , diazo and vesicular - visual density - specifications and measurement 縮微攝影技術(shù)銀鹽重氮和微泡拷貝片視覺密度技術(shù)規(guī)范和測量
Micrographics - duplicating film , silver , diazo and vesicular - visual density - specifications and measurement 縮微攝影技術(shù).銀鹽重氮和微泡復(fù)制膠片.視密度.規(guī)范和測量
Abstract : this paper outlines the normal and reversal imaging mechanism of dual positive - negative diazo duplicating film , the accurate choice of reversing agents , measures for increasing the image density and operation methods for dual exposure from film both sides to yield high density film . a new diazo duplicating film with satisfactory practical characteristics has been thus obtained 文摘:本文討論了異同像混用重氮膠片的成像原理、反轉(zhuǎn)成像機(jī)理及反轉(zhuǎn)劑選擇原則,提高圖像密度的輔助措施、以及高密度膠片的雙面曝光方法等技術(shù)問題,通過綜合運(yùn)用上述技術(shù)措施,研制成功了一種可滿足實用要求的兼有異像和同像兩種復(fù)制特性的重膠片新品種。