GB2150782A - Image displaying apparatus - Google Patents

Image displaying apparatus Download PDF

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Publication number
GB2150782A
GB2150782A GB08332302A GB8332302A GB2150782A GB 2150782 A GB2150782 A GB 2150782A GB 08332302 A GB08332302 A GB 08332302A GB 8332302 A GB8332302 A GB 8332302A GB 2150782 A GB2150782 A GB 2150782A
Authority
GB
United Kingdom
Prior art keywords
transparency
slide
negative
image
output
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.)
Withdrawn
Application number
GB08332302A
Other versions
GB8332302D0 (en
Inventor
William Nevil Heaton Johnson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08332302A priority Critical patent/GB2150782A/en
Publication of GB8332302D0 publication Critical patent/GB8332302D0/en
Publication of GB2150782A publication Critical patent/GB2150782A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00249—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector
    • H04N1/00267—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a photographic apparatus, e.g. a photographic printer or a projector with a viewing or projecting apparatus, e.g. for reading image information from a film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
    • H04N1/00283—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a television apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/195—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a two-dimensional array or a combination of two-dimensional arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
    • H04N1/1004—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces using two-dimensional electrical scanning, e.g. cathode-ray tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0404—Scanning transparent media, e.g. photographic film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0404—Scanning transparent media, e.g. photographic film
    • H04N2201/0406—Scanning slides

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Studio Devices (AREA)

Abstract

Apparatus allowing photographic slides to be viewed via a television receiver includes a housing 1 with a slide magazine 2, slide handling means 4 and a lamp 7 for illuminating slides individually, and a scanning cathode ray tube camera 10 or CCD array arranged to feed a signal to a modulator 15 from whence the signal may be supplied to the aerial socket of a television receiver 13. Electronic processing means may be provided to modify the signals derived from the camera 10 before passing the same to the television receiver, whereby colour balance or contrast, for example may be modified or a negative display as a positive. <IMAGE>

Description

SPECIFICATION Improvements in or relating to an image displaying apparatus The present invention relates to an image displaying apparatus and more particularly relates to an apparatus for use in combination with a conventional television set for displaying images, such as images stored on photographic slides, transparencies, negatives or the like.
Many people have photographic slides or transparencies that they wish to view. At the present time, if the slides or transparencies are to be shown to a number of people, it is necessary to erect a screen, and to utilise a projector to project the images onto the screen. The erection of the screen and the setting up of the projector are time consuming.
Most people nowdays have a television set, and the present invention seeks to provide a device that can be utilised in conjunction with a conventional television set for displaying images stored on photographic slides, transparencies, negatives or the like. It is envisaged that an apparatus in accordance with the invention may readily be kept instantaneously ready for use, and thus, when it is desired to show slides, transparencies, negatives or the like, these items can be readily displayed with a minimum of inconvenience merely by actuating the device in accordance with the invention, and the associated television set.
According to this invention there is provided an apparatus for generating an electrical video signal capable of being displayed on a conventional television set, which signal is representative of an image present on a photographic slide, transparency, negative or the like, said apparatus comprising means for retaining said slide, transparency, negative or the like in a viewing position, and means for directing light through the transparency slide negative or the like onto an optical/electrical image converter and means for generating a video output signal from said image converter.
Said image converter may comprise a scanning cathode ray camera tube, such as an orthicon or vidicon.
In one embodiment the output of the image converting device is connected to a modulator, the output of the modulator being the output of the apparatus.
Preferably said means for locating said slide, transparency negative or the like in position comprises a rotary magazine and an associated handling device to handle the slide, transparency, negative or the like, and conveniently remote control means are provided for controlling said handling device.
Said means for directing light through said slide transparency or negative may comprise a lamp associated with a mirror and a lens arrangement.
This invention also relates to an apparatus as described above in combination with a television set.
In order that the invention may be more readily understood, and so that further features thereof may be appreciated, the invention will now be described by way of example with reference to the accompanying drawing which is a schematic illustration of one embodiment of the invention.
Turning to the accompanying drawing one embodiment of the invention is illustrated. A housing 1 is provided with a conventional circular magazine 2 which contains a plurality of photographic transparencies or slides 3. Each transparency 3 is located within an appropriate compartment formed within the magazine 2. The magazine is associated with a conventional transparency handling arrangement 4 (which is only illustrated schematically), which can be actuated by an appropriate remote control unit 5, illustrated as being connected to the housing 1 by means of an appropriate lead 6. Of course, the remote control unit can be operatively connected to the housing 1 by means of an infra-red arrangement if desired.
When the transparency handling mechanism is actuated a selected transparency is moved to a viewing position.
When the transparency is in the viewing position, light from a high intensity lamp 7 is directed, with the assistance of a parabolic mirror 8 and an appropriate lens assembly 9, through the transparency 3, and the image present on the transparency is thus directed into a scanning cathode ray tube camera 10. The scanning cathode ray tube camera can be of any conventional format, and can thus comprise a vidicon or an orthicon tube, together with the conventional scanning coils, and with the conventional scanning circuitry, which is not illustrated. The output signal of the camera, present on lead 11, is supplied through an output lead 12 from the housing 1 to a conventional television receiver 13.It will be appreciated that some television receivers 13 are provided with input sockets adapted to receive a video signal directly from a camera such as the camera 10, or adapted to receive a video signal directly from a video recorder.
Such an input terminal is thus connected to the circuitry of the television set between the FM tuner and demodulator, and the amplifiers present in the set. If the apparatus of the present invention is to be utilised in connection with a television set of this type, the output lead 11 from the camera 10 can be connected directly to the output lead 12 from the housing 1. However, it is the case with many television sets presently in use, that there is no such terminal connected to a point between the FM tuner and demodulator, and the associated amplifier, and in such case it is necessary to include, within the housing 1, a modulator, which is indicated in phantom as modulator 15.In such an embodiment of the invention signals from the camera 10 pass through the lead 11 to the modulator, and then a modulated signal is supplied through the lead 12 to the aerial socket of the television set 13. The television set then processes the signal in the same way as it would process a normal signal supplied to it through the aerial.
In either event the image present on the transparency is displayed on the screen of the television set.
It is to be appreciated that whilst the invention has been described with reference to one specific embodiment of the invention, many modifications may be made within the scope of the invention. For example, the scanning cathode ray television described may be replaced by a solid state device comprising a plurality of photo sensitive cells associated with a charge coupled device (CCD) arrangement to enable the image to be scanned rapidly or any other optical/image converter. Also it is to be appreciated that whilst the invention has been described with reference to the use of transparencies contained with a rotary magazine 2, the invention may equally be applied to photographic negatives which may be introduced to the housing by means of an appropriate negative handling device.Where colour negatives are utilised it is to be appreciated that a colour inverting circuit will have to be associated with the output of the camera 10, or the camera 10 will have to be appropriately designed to cope with a negative input image. A sophisticated embodiment of the invention may be capable of accepting both slides and negatives, and in such a case the camera 10 may have to be provided with an adjustable focus lens, or even a turret containing lenses of different types that may be brought into operation to enable the camera to compensate for the different sizes of the slides and the negatives. All these functions can be controlled from the remote control unit 5.
Again whilst one particular form of illuminating device has been illustrated, many modifications may be made within the scope of the invention.
Furthermore, various processing devices may be associated with, or incorporated in the apparatus, to modify the signal from the optical image convertor or at any other point in the apparatus, for example to allow the colour balance to be altered electronically under the control of an operator or automatically by an electronic image monitoring device. Likewise electronic processing means, such as a micro-computer, may be incorporated in the device, for example incorporating an erasable electronic memory whereby selected portions of an image signal derived from scanning a transparency or the like may be modified before the corresponding image is reproduced on the television screen, so that, for example, blemishes on the transparency may be 'removed', selected areas increased or reduced in visual contrast, a text or the like superimposed on the basic image, and so on.
Such a facility will, of course, be of substantial assistance to the photographer, for example in allowing him to experiment rapidly with the effects of various processing techniques he may use to produce the optimum finished picture from a basic transparency or negative. Such a facility might also, of course, be used in other ways, for example to allow one subscriber of a cable television network to send a video greetings "card" of his own selection and composition to another subscriber.

Claims (10)

1. An apparatus for generating an electrical video signal capable of being displayed on a conventional television set, which signal is representative of an image present on a photographic slide, transparency, negative or the like, said apparatus comprising means for retaining said slide, transparency, negative or the like in a viewing position, and means for directing light through the transparency slide negative or the like onto an optical/electrical image converter and means for generating a video output signal from said image converter.
2. An apparatus according to claim 1 wherein said image converter comprises a scanning cathode ray camera tube.
3. An apparatus according to claim 2, wherein said scanning cathode ray camera tube is an orthicon or vidicon.
4. An apparatus according to any one of claims 2 to 4 wherein the output of the image converting device is connected to a modulator, the output of the modulator being the output of the apparatus.
5. An apparatus according to any one of the preceding claims wherein said means for locating said slide, transparency negative or the like in position comprises a rotary magazine and an associated handling device to handle the slide, transparency, negative or the like.
6. An apparatus according to claim 5 wherein remote control means are provided for controlling said handling device.
7. An apparatus according to any one of the preceding claims wherein said means for directing light through said slide transparency or negative comprises a lamp associated with a mirror and a lens arrangement.
8. An apparatus according to any one of the preceding claims in combination with a television set.
9. An apparatus for generating an electrical video signal substantially as herein described with reference to the accompanying drawings.
10. Any novel feature or combination of features disclosed herein.
GB08332302A 1983-12-02 1983-12-02 Image displaying apparatus Withdrawn GB2150782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08332302A GB2150782A (en) 1983-12-02 1983-12-02 Image displaying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08332302A GB2150782A (en) 1983-12-02 1983-12-02 Image displaying apparatus

Publications (2)

Publication Number Publication Date
GB8332302D0 GB8332302D0 (en) 1984-01-11
GB2150782A true GB2150782A (en) 1985-07-03

Family

ID=10552769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08332302A Withdrawn GB2150782A (en) 1983-12-02 1983-12-02 Image displaying apparatus

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184318A (en) * 1985-10-30 1987-06-17 Telesnaps Plc Transferring photographs to video tape
FR2647616A1 (en) * 1989-05-24 1990-11-30 Ducos Michel Bench for the reproduction of photographic printing plates on magnetic support
EP3611912A1 (en) * 2018-08-15 2020-02-19 reflecta GmbH Dia scanner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384493A (en) * 1972-02-18 1975-02-19 Tech Et Dentreprises Generales Information retrieval apparatus
GB1470656A (en) * 1973-06-19 1977-04-21 Autocue Ltd Display means
WO1979000175A1 (en) * 1977-10-03 1979-04-05 Grumman Aerospace Corp Vehicle controlled raster display system
GB2116396A (en) * 1982-01-29 1983-09-21 Aniforms Ltd A portable studio for the "live" video transmission of animated cartoons, captions and other flat copy
WO1984001485A1 (en) * 1982-09-29 1984-04-12 Eastman Kodak Co Film video player

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1384493A (en) * 1972-02-18 1975-02-19 Tech Et Dentreprises Generales Information retrieval apparatus
GB1470656A (en) * 1973-06-19 1977-04-21 Autocue Ltd Display means
WO1979000175A1 (en) * 1977-10-03 1979-04-05 Grumman Aerospace Corp Vehicle controlled raster display system
GB2116396A (en) * 1982-01-29 1983-09-21 Aniforms Ltd A portable studio for the "live" video transmission of animated cartoons, captions and other flat copy
WO1984001485A1 (en) * 1982-09-29 1984-04-12 Eastman Kodak Co Film video player

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184318A (en) * 1985-10-30 1987-06-17 Telesnaps Plc Transferring photographs to video tape
GB2184318B (en) * 1985-10-30 1989-11-15 Telesnaps Plc Process and apparatus for transferring photographs to video tape
FR2647616A1 (en) * 1989-05-24 1990-11-30 Ducos Michel Bench for the reproduction of photographic printing plates on magnetic support
EP3611912A1 (en) * 2018-08-15 2020-02-19 reflecta GmbH Dia scanner
US10735619B2 (en) 2018-08-15 2020-08-04 Reflecta Gmbh Slide scanner

Also Published As

Publication number Publication date
GB8332302D0 (en) 1984-01-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)