Processing Holography Film处理全息胶片
Chemicals needed are the developer solution, bleach, and Photoflo.
If you are making reflection holograms, they cannot be viewed until the hologram is dry. Sample layout for developing开发样本布局
Further comments on developing
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| HyperPhysics***** Physics 391 ***** Holography
HyperPhysics ***** 物理学 391 ***** 全息术 |
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Developer Solution开发解决方案
Just before developing, mix equal parts of Solution A and Solution B in a developing tray. The working solution has a life of approximately 8 hours. Mix only enough to develop the holograms, and dispose afterward. 在开发前,将等量的溶液A和溶液B混合到开发 tray 中。工作溶液的有效期约为8小时。只混合足够开发全息图的量,并在使用后丢弃。
The stock solutions are mixed from the chemicals obtained from Photographer's Formulary. 化学试剂是从Photographer's Formulary中获得的,然后被用来配制标准溶液。
注意:建议使用蒸馏水。 |
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| HyperPhysics***** Physics 391 ***** Holography
HyperPhysics ***** 物理学 391 ***** 全息术 |
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Bleach漂白剂
Mix the potassium dichromate thoroughly in the water. Add the sodium bisulfate and mix well. 将硫酸氢钠 thoroughly 混入水中。
The bleach is good for a long time and can be reused until potency is lost. 这种漂白剂可以使用很长时间,直到功效丧失前都可以重复使用。
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| HyperPhysics***** Physics 391 ***** Holography
HyperPhysics ***** 物理学 391 ***** 全息术 |
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PhotofloPhotoflo(专名或术语)
Kodak Photoflo is a commercial wetting agent which is used as the last step before film drying. It helps to prevent water spots from the formation of water droplets on the film. Some persons prefer to use a photographic squeegee to wipe off most of the water so that large droplets will not form after the film is hung to dry.
Kodak Photoflo 是一种商业湿性剂,用于胶片干燥前的最后一步。它有助于防止水渍的形成,避免胶片上形成水滴。有些人更喜欢使用摄影刮板擦去大部分水分,这样胶片挂干后就不会形成大水滴。 |
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| HyperPhysics***** Physics 391 ***** Holography
HyperPhysics ***** 物理学 391 ***** 全息术 |
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Developing Considerations发展考虑
Clay Turner has had a lot of experience with film and developing for holograms. He provides the following information. Clay Turner 在胶片和全息图制作方面有丰富的经验。他提供了以下信息。
Film recommended: Agfa 8E75NAH-HD (8 is the type of emulsion, 75 specifies 750nm as peak of sensitivity, NAH specifies no backing, I think, and HD is for high definition) 100 sheets of 4x5 for about $120. From Photocopy Warehouse, Armour Drive, Norcross, 404-875-9956 推荐影片:Agfa 8E75NAH-HD(8表示胶片类型,75表示灵敏度峰值为750nm,NAH表示无底纸,HD表示高分辨率)约120美元,可购买4x5英寸胶片100卷。从Photocopy Warehouse购买,地址:Armour Drive, Norcross, 电话:404-875-9956
For developing he recommended a pyrochrome process obtainable from Photographers Formulary, Condon, Montana 406-754-2891. It involves A and B parts which are kept separately and mixed just before use. Actual source is Integraf, 745 N. Waukegan Road, Lake Forest, IL 60045. Phone 1-312-234-3756 Metrologic book gives Ph 708-234-3756, Fax 708-615-0835 为开发该技术,他推荐使用可从《摄影师手册》(Photographers Formulary)获得的Pyrochrome工艺,该工艺由蒙塔那州康登提供,电话:406-754-2891。该工艺包括A和B两部分,分别保存,使用前才混合。实际来源是Integraf,地址:745 N. Waukegan Road, Lake Forest, IL 60045。电话:1-312-234-3756。Metrologic的书籍给出电话:708-234-3756,传真:708-615-0835。
Clay uses a green safety gel in the darkroom which he got from Atlanta Costume on Monroe Drive. He checked the sensitivity curve of the Agfa film and picked a green gel which blocked that range. He said that large sheets of it could be bought from Atlanta Costume, which provides gels for theatrical lighting. Clay在暗房中使用一种绿色的安全凝胶,这种凝胶是从Monroe Drive的Atlanta Costume购买的。他检查了Agfa胶片的灵敏度曲线,并选择了一种能阻挡该波段的绿色凝胶。他说,这种大尺寸的凝胶可以从Atlanta Costume购买,该公司也提供戏剧照明用的凝胶。
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Index
索引 |
| HyperPhysics***** Physics 391 ***** Holography
HyperPhysics ***** 物理学 391 ***** 全息术 |
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