US3645735A - Coating bead modulation and recording thereby - Google Patents

Coating bead modulation and recording thereby Download PDF

Info

Publication number
US3645735A
US3645735A US867030A US3645735DA US3645735A US 3645735 A US3645735 A US 3645735A US 867030 A US867030 A US 867030A US 3645735D A US3645735D A US 3645735DA US 3645735 A US3645735 A US 3645735A
Authority
US
United States
Prior art keywords
coating
web
bead
film
light
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
Application number
US867030A
Other languages
English (en)
Inventor
Arthur Daniel Danielson
Lyle Charles Klier
John D O'-Brien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of US3645735A publication Critical patent/US3645735A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • 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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/765—Photosensitive materials characterised by the base or auxiliary layers characterised by the shape of the base, e.g. arrangement of perforations, jags
    • 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
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/136—Coating process making radiation sensitive element

Definitions

  • the invention provides a procedure which is in direct contrast with known prior art practices, viz the intentional selective vibration of a coating bead while applying an optical coating to a web. Such vibrations cause the coating bead to deposit the coating depthwise in tune with such vibrations.
  • a special-purpose motion picture film is emulsion coated by a hopper, the coating head of which is vibrated in accordance with some variable frequency background audio which is to be impressed in the film.
  • the film is exposed in the usual way, and then developed. Variations in emulsion thickness appear as visible crosslines on the developed film; but on being projected through a projector, the lines occurring at varying frequencies are not apparent on the projection screen.
  • the projector is equipped with a photopickup, the output of which is applied to a speaker for playback of the background audio. (This technique assumes that frequency correction is not necessary to compensate for different coating and playback speeds.)
  • the emulsion coating bead formed by a hopper that is used in the manufacture of a motion picture film product, is periodically vibrated (say, at 50 feet increments of product) at a predetermined frequency. Coating thickness variations so produced cause periodic visible grids in the film after such film is exposed and processed.
  • the grids are employed for control of a motion picture projector.
  • the projector is equipped with a photopickup adapted to look for the grids.
  • a filter circuit tuned to the frequency at which the grid lines pass the photopickup, operates a relay; and the relay actuates, say, the forwardfeed switch for the projector.
  • the invention is not limited to photographic coatings, but is more broadly concerned with optical coatings, viz coatings which influence light falling upon them in proportion to coating thickness.
  • An example of an optical coating which is within the purview of the invention is a dyed gel which is coated on a web; and which gel transmits light as a function of coating thickness.
  • An object of the invention is to provide a new kind of product especially one that is photographic in nature and a way to make such product.
  • FIG. 1 is a diagrammatic view, like that indicated in U.S. Pat. No. 2,952,559, illustrating the practice of the invention, and
  • FIG. 2 is a block diagram of a motion picture projector, and is useful to illustrate some of the features provided by means of the invention.
  • a photographic film base web 10 is fed over an idler roller 12, past a coating hopper 14, by means of a feed roller 14.
  • the hopper 14 presents a bead 20 of photographic emulsion to the film base web 10 for purposes of emulsion coating the web.
  • a signal generator 22 cooperates with a speaker 23; and the speaker 23 directs its output energy .to the coating bead 20.
  • the signal generator 22 may be selectively turned on by means of a switch 24. Vibration of the coating head 20 by means of the signal generator 22-speaker 23 causes thickness variations 26 in the emulsion 28 coated on the web 10.
  • a motor-operated cam may be employed to close periodically the switch 24 to apply continuous wave (CW) variations to the hopper bead 20 (control recording); or the switch 14 may be manually closed to apply continuously the modulation of a sound recording to the hopper bead 20 (background recording); etc.
  • CW continuous wave
  • the switch 14 may be manually closed to apply continuously the modulation of a sound recording to the hopper bead 20 (background recording); etc.
  • processing the product manufactured as in FIG. 1 causes the thickened emulsion coating optically to contrast with the thinned emulsion coating.
  • the projector of FIG. 2 is adapted to accommodate film 30 manufactured with both control and background recordings.
  • the film 30 is moved past a film gate (not shown) by means of a motor 32.
  • Light is shined from a lamp 34 through the film 30 in the gate; and the lamp 34 and motor 32 are energized by means of a power supply 38.
  • a beam splitter 40 passes light, exiting from the film 30, to a projection lens 42 for imaging purposes; and such beam splitter 40 passes some of the exiting light to a photodetector circuit 44.
  • the output of the photodetector circuit 44 is amplified (46), the background frequencies which were recorded in the film during manufacture thereof being filtered (48) out for application to a speaker 50.
  • Occurrence (say, at the end of the film being projected) of a discrete CW frequency causes a filter circuit 52 to produce a discrete signal output, thereby to actuate a relay 54 for removing power from the lamp 34 and motor 32.
  • a photographic web made by the process of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
US867030A 1969-10-16 1969-10-16 Coating bead modulation and recording thereby Expired - Lifetime US3645735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86703069A 1969-10-16 1969-10-16

Publications (1)

Publication Number Publication Date
US3645735A true US3645735A (en) 1972-02-29

Family

ID=25348927

Family Applications (1)

Application Number Title Priority Date Filing Date
US867030A Expired - Lifetime US3645735A (en) 1969-10-16 1969-10-16 Coating bead modulation and recording thereby

Country Status (5)

Country Link
US (1) US3645735A (enrdf_load_stackoverflow)
BE (1) BE757649A (enrdf_load_stackoverflow)
DE (1) DE2050682A1 (enrdf_load_stackoverflow)
FR (1) FR2064375A1 (enrdf_load_stackoverflow)
GB (1) GB1294948A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5336534A (en) * 1992-04-21 1994-08-09 Fuji Photo Film Co., Ltd. Coating method employing ultrasonic waves

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5190789A (en) * 1991-08-29 1993-03-02 Eastman Kodak Company Ultrasonic monitoring of a freely flowing curtain of coating material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952559A (en) * 1956-11-01 1960-09-13 Eastman Kodak Co Method of coating a liquid photographic emulsion on the surface of a support
US3063868A (en) * 1959-10-28 1962-11-13 Du Pont Apparatus and method for coating continuous webs
US3077398A (en) * 1959-05-14 1963-02-12 Bell & Howell Co Xerographic plate made by cast coating
US3108893A (en) * 1958-11-07 1963-10-29 Australia Res Lab Applying printed patterns electrostatically
US3181172A (en) * 1962-12-26 1965-04-27 Ampex Storage media
US3200280A (en) * 1960-12-13 1965-08-10 Universal Coatings Inc Decorative light source
US3310403A (en) * 1962-12-26 1967-03-21 Minnesota Mining & Mfg Process of making an intaglio plate using an image transfer film
US3462286A (en) * 1963-07-16 1969-08-19 Gevaert Photo Prod Nv Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952559A (en) * 1956-11-01 1960-09-13 Eastman Kodak Co Method of coating a liquid photographic emulsion on the surface of a support
US3108893A (en) * 1958-11-07 1963-10-29 Australia Res Lab Applying printed patterns electrostatically
US3077398A (en) * 1959-05-14 1963-02-12 Bell & Howell Co Xerographic plate made by cast coating
US3063868A (en) * 1959-10-28 1962-11-13 Du Pont Apparatus and method for coating continuous webs
US3200280A (en) * 1960-12-13 1965-08-10 Universal Coatings Inc Decorative light source
US3181172A (en) * 1962-12-26 1965-04-27 Ampex Storage media
US3310403A (en) * 1962-12-26 1967-03-21 Minnesota Mining & Mfg Process of making an intaglio plate using an image transfer film
US3462286A (en) * 1963-07-16 1969-08-19 Gevaert Photo Prod Nv Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5336534A (en) * 1992-04-21 1994-08-09 Fuji Photo Film Co., Ltd. Coating method employing ultrasonic waves

Also Published As

Publication number Publication date
BE757649A (fr) 1971-04-16
DE2050682A1 (de) 1971-04-29
GB1294948A (enrdf_load_stackoverflow) 1972-11-01
FR2064375A1 (enrdf_load_stackoverflow) 1971-07-23

Similar Documents

Publication Publication Date Title
US2923781A (en) System for continuously recording sound on film photographically
US3645735A (en) Coating bead modulation and recording thereby
US2676023A (en) Sound recording camera
US1843972A (en) Talking motion picture apparatus
US1891738A (en) Talking movie
US2564312A (en) Method of making sound motionpicture film
US1840351A (en) Sound record and method of producing the same
US3773419A (en) Facsimile and microfilm apparatus
US2066880A (en) Recording device
US1975929A (en) Sound record and method of making the same
GB1328662A (en) Method of cleaning a flexible web and apparatus therefor
US3151521A (en) Method and apparatus for preventing optical interference in image reproducing devices
US2087581A (en) Sound motion picture film and system for producing the same
US3848978A (en) Analog information storage and retrieval system
US2420798A (en) Apparatus for and process of taking and showing sound motion pictures
US1879423A (en) System of sound recording and reproduction
US2055215A (en) Method of producing combined sound and picture films
US1996958A (en) Method of and apparatus for varying the length of sound records
US1913867A (en) Method and apparatus for controlling projection of light by sound waves
USRE21029E (en) Method of and means fob recording
US3850513A (en) Analog information storage and retrieval system
US2322435A (en) Motion picture sound recording and reproducing system
US2972279A (en) Film-viewing device
US2096811A (en) Sound recording apparatus
GB1520209A (en) Film apparatus