US3728118A - Process for producing multiple recording in a single medium - Google Patents

Process for producing multiple recording in a single medium Download PDF

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Publication number
US3728118A
US3728118A US00062473A US3728118DA US3728118A US 3728118 A US3728118 A US 3728118A US 00062473 A US00062473 A US 00062473A US 3728118D A US3728118D A US 3728118DA US 3728118 A US3728118 A US 3728118A
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US
United States
Prior art keywords
emulsion
image
kodak
recording
illumination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00062473A
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English (en)
Inventor
G Fillmore
R Tynan
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International Business Machines Corp
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International Business Machines Corp
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/66—Compositions containing chromates as photosensitive substances
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images
    • G03C5/44—Bleaching; Bleach-fixing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
    • G03F7/095—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having more than one photosensitive layer

Definitions

  • the present invention employs a novel method in which a single emulsion is exposed twice to record two different images, and by further employing conventional photographic processing techniques a complex-valued spatial filter is produced which avoids the complexities of the prior art filters.
  • the method of the present invention involves prehardening a photographic emulsion followed by sensitizing the photographic emulsion in a dichromate solution and thereafter exposing the emulsion to the proper illumination to record a desired refractive index image.
  • a bleaching step follows after which the bleached emulsion is exposed to proper illumination to record the transmission image.
  • conventional photographic fixing techniques the transmittance image is developed, after which the emulsion is subjected to rapid dehydration to develop the refractive index image.
  • the main object is to provide a novel process for recording a plurality of different images in a single emulsion.
  • Another object is to provide a novel process for recording a plurality of different images in a single emulsion that, when developed, yields a complex filter that is superior in quality and less expensive than prior art filters.
  • a more detailed object is to provide a novel process for recording in a single photoemulsion a transmittance image and a refractive index image.
  • a photoemulsion for example a Kodak 649F Spectroscopic plate, available from Eastman Kodak Company, is prehardened by soaking the emulsion plate for about ten minutes in a bath, for example Kodak SH-S, available from Eastman Kodak Company, after which the plate is removed from the bath, washed in water, and then dried.
  • Kodak SH-S available from Eastman Kodak Company
  • Kodak SH-S bath is an aqueous solution of the following ingredients, to wit: formaldehyde, 6-nitrobenzimidazole nitrate, sodium sulfate, and sodium carbonate.
  • the dried emulsion plate is then sensitized by immersion, for about ten minutes, in a dichromate solution (ammonium or potassium dichromate), after which the sensitized emulsion plate is removed from the solution and dried in air.
  • the dried sensitized emulsion is exposed to appropriate illumination to record the latent desired refractiveindex image in the sensitized gelatin portion of said emulsion and a corresponding latent silver halide density image.
  • the exposed emulsion plate is washed in running water to remove the unexposed dichromate.
  • the exposed emulsion plate is bleached by immersing the plate in Kodak E'B2 solution, available from Eastman Kodak Company, for about twelve minutes. This bleaching eliminates the latent silver image caused by the exposure, and also reduces but without destroying the sensitivity of the remaining silver halide of the emulsion to the longer wavelengths of light.
  • Kodak D19 developer solution for example Kodak D19 developer solution, available from Eastman Kodak Company.
  • the ingredients of the Kodak D19 developer are described on p. 38 of the aforementioned publication Processing Chemicals and Formulas for Black-and-White Photography. More specifically, Kodak D19 developer is an aqueous solution of the following ingredients, to wit: p-methylaminophenol sulfate, which is a development agent and is available from Eastman Kodak under the trade name Elon, sodium sulfite, hydroquinone, sodium carbonate, and potassium bromide.
  • the emulsion plate is washed in running water and thereafter dried in air.
  • the dried emulsion plate is now exposed (for the second time) to the proper illumination distribution to record a latent desired transmittance image in the aforementioned remaining silver halide.
  • Typical light exposure data for the aforementioned Kodak 649F Spectroscopic emulsion may be found, for example, in the publication entitled Data ReleaseKodak Materials for Holography, Kodak Pamphlet No. 110, February 1969, and particularly from the appropriate information at pp. 3-5 thereof.
  • the plate is subjected to normal photographic processing techniques for developing the latent density image, after which the plate is rinsed in a stop bath, and by a normal photographic fix process the transmittance image is thereby completely recorded.
  • the aforementioned Kodak Pamphlet No. 110 describes at pp. 6 and 7 thereof typical photographic processing techniques for developing and fixing silver density images for Kodak 649F type emulsions.
  • the plate is washed in running water and then immersed in isopropyl or ethyl alcohol for a nominal period of up to two minutes to cause rapid dehydration during which the refractive image is developed, after which the plate is dried.
  • Kodak EB2 bleach has the following composition:
  • the illumination employed in the first exposure, for the recording of the refractive index image occupies that portion of the spectrum between ultraviolet and blue, whereas the wavelength of illumination employed in the second exposure for the recording of the transmittance image lies within the region of the original sensitvity of the emulsion.
  • the Kodak 649F emulsion has a spectral sensitivity range between approximately .275 and .670 micron.
  • the wavelength of the illumination of the aforementioned first exposure associated with recording the refractive index is between blue and ultraviolet and a longer wavelength is used for the aforementioned second exposure illumination which is associated with the recording of the transmittance den sity image.
  • the second exposure may be used to record, with reasonable success, the second image, i.e., the transmittance image, and, as such, the step of soaking the emulsion plate in the D19 solution may be dispensed with.
  • prehardening said emulsion by soaking said emulsion in a liquid bath containing a hardening agent;
  • prehardening said emulsion by soating the emulsion in a liquid bath containing a hardening agent, and thereafter washing in water;
  • Mees, 1. The Theory of the Photographic Process, 3rd ed., 1966, pp. 149, 150 and 160.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
US00062473A 1970-08-10 1970-08-10 Process for producing multiple recording in a single medium Expired - Lifetime US3728118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6247370A 1970-08-10 1970-08-10

Publications (1)

Publication Number Publication Date
US3728118A true US3728118A (en) 1973-04-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00062473A Expired - Lifetime US3728118A (en) 1970-08-10 1970-08-10 Process for producing multiple recording in a single medium

Country Status (7)

Country Link
US (1) US3728118A (enrdf_load_stackoverflow)
JP (1) JPS5113665B1 (enrdf_load_stackoverflow)
CA (1) CA964513A (enrdf_load_stackoverflow)
CH (1) CH521609A (enrdf_load_stackoverflow)
DE (1) DE2139835A1 (enrdf_load_stackoverflow)
FR (1) FR2101509A5 (enrdf_load_stackoverflow)
GB (1) GB1351687A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948660A (en) * 1972-08-05 1976-04-06 Agfa-Gevaert, A.G. Method for the manufacture of fresnel lenses using light-sensitive materials
US4029507A (en) * 1973-08-04 1977-06-14 Agfa-Gevaert, A.G. Process for the production of lightfast phase holograms utilizing ammonium dichromate and gelatin as photosensitive recording material
US4187106A (en) * 1979-03-23 1980-02-05 The United States Of America As Represented By The Secretary Of The Army Process for making phase holograms
US4826745A (en) * 1986-12-17 1989-05-02 Ciba-Geigy Ag Method of preparing a hologram
US5453339A (en) * 1991-03-28 1995-09-26 Saint Gobain Vitrage International Method for producing a non-uniform holographic element on a glass pane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5598750A (en) * 1979-01-23 1980-07-28 Fuji Photo Film Co Ltd Photographic bleaching composition
JPS5739687U (enrdf_load_stackoverflow) * 1980-08-14 1982-03-03

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948660A (en) * 1972-08-05 1976-04-06 Agfa-Gevaert, A.G. Method for the manufacture of fresnel lenses using light-sensitive materials
US4029507A (en) * 1973-08-04 1977-06-14 Agfa-Gevaert, A.G. Process for the production of lightfast phase holograms utilizing ammonium dichromate and gelatin as photosensitive recording material
US4187106A (en) * 1979-03-23 1980-02-05 The United States Of America As Represented By The Secretary Of The Army Process for making phase holograms
US4826745A (en) * 1986-12-17 1989-05-02 Ciba-Geigy Ag Method of preparing a hologram
US5453339A (en) * 1991-03-28 1995-09-26 Saint Gobain Vitrage International Method for producing a non-uniform holographic element on a glass pane

Also Published As

Publication number Publication date
CA964513A (en) 1975-03-18
CH521609A (de) 1972-04-15
DE2139835A1 (de) 1972-02-17
GB1351687A (en) 1974-05-01
JPS5113665B1 (enrdf_load_stackoverflow) 1976-05-01
FR2101509A5 (enrdf_load_stackoverflow) 1972-03-31

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