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公开(公告)号：US4895419A
公开(公告)日：1990-01-23
申请号：US308662
申请日：1989-02-10
申请人： James Doyle , Anthony I. Hopwood , Alan Adshead
发明人： James Doyle , Anthony I. Hopwood , Alan Adshead
CPC分类号： G03H1/20 , G02B5/32 , G03H2001/0415 , G03H2001/207 , G03H2001/2234 , G03H2223/12
摘要： A method of preparing a reflection hologram which includes mounting a transmission hologram in register with a portion of transparent photosensitive holographic material there being present there between a filter to cut out zero order light transmitted through the transmission hologram, there being present on each side of an assembly which includes the hologram and the holographic material a light reflecting surface then causing a beam of light from a laser source to pass through a holographic optical element (H.O.E.) which splits the beam into two beams and causes both beams to scan in register over both the whole surface of the transmission hologram and the holographic material by directing the beams onto both reflecting surfaces so that one beam is reflected from one said reflecting surface and on passing through the transmission hologram takes-up the image information and passes through the filter to cut out the zero order light to the portion of transparent photosensitive holographic material where it interferes with the other beam which is reflected from the other reflecting surface into the holographic material then processing the holographic material to fix the holographic image therein.
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公开(公告)号：US4720441A
公开(公告)日：1988-01-19
申请号：US877835
申请日：1986-06-24
申请人： John A. Clark , Alan Adshead , David W. Butcher
发明人： John A. Clark , Alan Adshead , David W. Butcher
CPC分类号： G03C5/44 , G03H2240/11 , G03H2260/16
摘要： A method of preparing a hologram which comprises subjecting holographic material to a holographic exposure, the holographic material comprising a silver halide emulsion of which at least 80% by weight of the halide is bromide, developing the exposed material in a silver halide developing solution to yield developed silver, converting the residual silver bromide, in the main part at least, to silver iodide by use of an aqueous iodide solution, removing the developed silver but leaving the silver iodide either by use of a bleach/fix bath under controlled conditions or by rehalogenating the developed silver to silver bromide or chloride using a brominating or chlorinating silver bleach solution and simultaneously or subsequently fixing out the thus formed silver bromide or chloride using a fixing agent under such conditions that silver iodide is not dissolved from the material.
摘要翻译： 一种制备全息图的方法，其包括使全息材料进行全息曝光，所述全息材料包含卤化银乳剂，其中至少80重量％的卤化物是溴化物，将曝光的材料在卤化银显影溶液中显影，以产生 开发的银，主要部分至少将残余的溴化银转化为碘化银使用碘化钠水溶液，除去显影的银，但是在受控条件下或通过使用漂白/固定液在受控条件下或通过 使用溴化或氯化银漂白溶液将显影的银重新卤化成溴化银或氯化物，并同时或随后使用定影剂在如此形成的溴化银或氯化物中固化出碘化银不从材料中溶解的条件。
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公开(公告)号：US4748097A
公开(公告)日：1988-05-31
申请号：US877954
申请日：1986-06-24
申请人： John A. Clark , Alan Adshead , David W. Butcher
发明人： John A. Clark , Alan Adshead , David W. Butcher
CPC分类号： G03C5/44 , G03H2240/11 , G03H2260/16
摘要： A method of preparing a hologram which comprises subjecting holographic material to a holographic exposure, the holographic material comprising silver halide emulsion of which at least 80% by weight of the halide is bromide, developing the exposed material in a silver halide developing solution to yield developed silver, converting the developed silver to silver chloride using a bleaching agent selected from ferric ions, persulphate ions, chlorate ions, peroxides and water-soluble quinones, in the presence of chloride ions and then fixing out the silver chloride using a silver halide fixing agent which dissolves silver chloride but not silver bromide or silver iodobromide under the conditions of use.
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