首页> 美国政府科技报告 >THE CALIBRATION OF PHOTOGRAPHIC AND SPECTROSCOPIC FILMS 1. Film Batch Variations of Reciprocity Failure in IlaO film 2. Thermal and Aging Effects in Relationship to Reciprocity Failure 3. Shifting of Reciprocity Failure Points as a Function of Thermal and Aging Effects SEMI-ANNUAL REPORT May 1, 1987 -October 30, 1987
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THE CALIBRATION OF PHOTOGRAPHIC AND SPECTROSCOPIC FILMS 1. Film Batch Variations of Reciprocity Failure in IlaO film 2. Thermal and Aging Effects in Relationship to Reciprocity Failure 3. Shifting of Reciprocity Failure Points as a Function of Thermal and Aging Effects SEMI-ANNUAL REPORT May 1, 1987 -October 30, 1987

机译:照相和光谱薄膜的校准1. IlaO薄膜中往复失效的薄膜批次变化2.与往复失效相关的热和老化效应3.互易失效点的移动作为热和老化效应的函数半年度报告5月1日,1987年 - 1987年10月30日

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Reciprocity failure was examined for IlaO spectrocopic film. Three separate experiments were performed in order to study film batch variations, thermal and aging effects in relationship to reciprocity failure, and shifting of reciprocity failure points as a function of thermal and aging effects. The failure was examined over ranges of time between 5 and 60 seconds. The variation to illuminance was obtained by using thirty neutral density filters. A standard sensitometer device imprinted the wedge pattern on the film as exposure time was subjected to variation. Our results indicate that film batch differences, temperature and aging play an important role in reciprocity failure of llaO spectroscopic film. A shifting of the failure points was also observed in various batches of film.

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