Photographic materials suited for the production of color separations
    4.
    发明授权
    Photographic materials suited for the production of color separations 失效
    适用于生产分色的摄影材料

    公开(公告)号:US4118228A

    公开(公告)日:1978-10-03

    申请号:US707882

    申请日:1976-07-22

    CPC分类号: G03F3/04 G03C1/29 G03C1/46

    摘要: Photographic panchromatic black-and-white silver halide recording material having two silver halide emulsion layers wherein a layer, called hereinafter first layer, has a panchromatic sensitivity and another layer, called hereinafter second layer, has a blue sensitivity, which is, when determined on comparable wedge images, at density 0.3 at least 0.6 log I.t units higher than its separately considered green and red sensitivity, wherein for the determination of the sensitivities a blue filter, a green filter, and a red filter as characterized in FIG. 1 are used, both said layers having a substantially identical threshold sensitivity to blue light and the spectral sensitivity of this material at 650 nm being at least 0.8 powers of ten lower than at 620 nm, the sensitivity beyond 650 nm diminishing even further.

    摘要翻译: 具有两个卤化银乳剂层的照相全色黑白卤化银记录材料,其中称为下文第一层的层具有全色灵敏度,另外称为第二层的另一层具有蓝色灵敏度,这是在 相当的楔形图像,密度为0.3,至少为0.6log,高于其分别考虑的绿色和红色灵敏度的单位,其中对于灵敏度的确定,蓝色滤光片,绿色滤光片和红色滤色器如图1所示。 1,两个所述层对蓝色光具有基本相同的阈值灵敏度,并且该材料在650nm处的光谱灵敏度比620nm低至少0.8倍,超过650nm的灵敏度进一步降低。