发明授权
- 专利标题: Spectrally sensitized silver halide photographic emulsion
- 专利标题(中): 光谱增感卤化银照相乳剂
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申请号: US495171申请日: 1974-08-06
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公开(公告)号: US3951666A公开(公告)日: 1976-04-20
- 发明人: Masanao Hinata , Masanaga Ohki , Haruo Takei , Akira Sato , Tadashi Ikeda
- 申请人: Masanao Hinata , Masanaga Ohki , Haruo Takei , Akira Sato , Tadashi Ikeda
- 申请人地址: JA Minami-ashigara
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JA Minami-ashigara
- 优先权: JA48-88196 19730806
- 主分类号: G03C1/28
- IPC分类号: G03C1/28 ; C09B23/00 ; G03C1/29 ; G03C1/14
摘要:
A silver halide photographic emulsion containing a supersensitizing amount of the combination of at least one dye represented by the general formula (I) ##SPC1##wherein Z represents the non-metal atoms necessary to form a benzene nucleus; R.sub.0, R.sub.1 and R.sub.2 each represents aliphatic groups, with at least one of R.sub.1 and R.sub.2 representing an alkyl group containing a carboxy group or an alkyl group containing a sulfo group; Y represents a halogen atom; X represents an acid anion; n represents an integer of 1 to 2, with n being 1 when the dye forms an intramolecular salt; and at least one dye represented by the general formula (II) ##EQU1## wherein Z.sub.1 represents the non-metal atoms necessary to form a 5-or 6-membered heterocyclic nucleus; Q represents the atoms necessary to form a rhodanine nucleus, a 2-thio-2,4-imidazolidinedione nucleus, a 2-pyrazoline-5-one nucleus, or a 2-thio-2,4-oxazolidinedione nucleus; R.sub.3 represents an aliphatic group; R.sub.4 represents a hydrogen atom, an alkyl group, an alkoxy group, or a mono-aryl group; m represents 1 or 2; and p represents 1 or 2.
公开/授权文献
- US5648874A Optical apparatus 公开/授权日:1997-07-15