DE976314C - Process for copying developed, perforated dosimeter films - Google Patents

Process for copying developed, perforated dosimeter films

Info

Publication number
DE976314C
DE976314C DESCH16601A DESC016601A DE976314C DE 976314 C DE976314 C DE 976314C DE SCH16601 A DESCH16601 A DE SCH16601A DE SC016601 A DESC016601 A DE SC016601A DE 976314 C DE976314 C DE 976314C
Authority
DE
Germany
Prior art keywords
films
perforated
development
writing
dosimeter
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
Application number
DESCH16601A
Other languages
German (de)
Inventor
Paul Dr Kainrath
Hermann Dipl-Phys Mergler
Gerhard Dr Schumann
Georg Dr Straimer
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.)
Adox Fotowerke Dr C Schleussner GmbH
Original Assignee
Adox Fotowerke Dr C Schleussner GmbH
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 Adox Fotowerke Dr C Schleussner GmbH filed Critical Adox Fotowerke Dr C Schleussner GmbH
Priority to DESCH16601A priority Critical patent/DE976314C/en
Application granted granted Critical
Publication of DE976314C publication Critical patent/DE976314C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08Photoprinting; Processes and means for preventing photoprinting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

Verfahren zum Kopieren von entwickelten, mit Lochschrift versehenen Dosimeterfilmen Gegenstand der Erfindung bildet ein neuartiges und besonders vorteilhaftes Verfahren zum Kopieren von entwickelten, mit Lochschrift versehenen Dosimeterfilmen.Process for copying developed, perforated text Dosimeter films The subject of the invention is a novel and particularly advantageous one Process for copying developed, cursed dosimeter films.

Es ist bereits bekannt, für die, Individualdosimetrie fotografische Filme geeigneter Empfindlichkeit, vorzugsweise in kleinen Formaten, zu verwenden. Üblicherweise werden diese Filme während der Registrierungsdauer in Kassetten aufbewahrt und anschließend an einer zentralen Stelle entwickelt. Da es sich hierbei um eine: größere Anzahl gleichzeitig zu entwickelnder Filme, handelt, ist es erforderlich, die einzelnen Filme unv erwe:chselbar und exakt zu kennzeichnen, um sie einer bestimmten Kassette bzw. gegebenenfalls einer bestimmten Person bei der Auswertung zuordnen zu können. Es ist zu diesem Zweck unter anderem bekannt, die Filme mit einer no:tenschriftartigen Lochschrift zu markieren, die eine solche eindeutige Kennzeichnung ermöglicht. In vielen Fällen ist es wünschenswert, von derartigen Filmen eine Kopie herzustellen, um eine Meldung an dritte Stellen möglich zu machen.It is already known for the photographic, individual dosimetry Use films of suitable speed, preferably in small formats. Usually these films are kept in cassettes during the registration period and then developed at a central point. Since this is a: larger number of films to be developed simultaneously, it is necessary to to identify the individual films in such a way that they cannot be changed and exactly to give them a specific one Assign the cassette or, if necessary, to a specific person during the evaluation to be able to. For this purpose it is known, among other things, that the films are marked with a notation-like To mark hole writing that enables such a clear identification. In in many cases it is desirable to make a copy of such films, to make a report to third parties possible.

Die Wiedergabe der Lochschrift auf der Kopie ist naturgemäß um so besser, je höher die optische Dichte irn Gebiet der Lochungen des verwendeten Dosimeterfilms ist. Die optische Dichte der die Lochungen umfassenden Randbereiche wird daher erhöht und kann solches dadurch -geschehen, daß das Filmmaterial im Bereich der Lochschrift in einem beliebigen Zeitpunkt vor der Entwicklung belichtet wird. Diese Vorbelichtung kann sowohl durch sichtbares Licht als auch durch geeignete Strahlung, z. B. weiche Röntgenstrahlung oder ß-Strahlung, vor der die übrigen Teile des Films geschützt werden, erfolgen. Die vor der Entwicklung vorhandene optische Dichte der die Lochung umfassenden Randbereiche kann dadurch aufrechterhalten werden, daß die Entwicklung und Fixierung des Films im Bereich der Lochschrift verhindert wird, vorzugsweise dadurch, daß das Filmmaterial im Bereich der Lochschrift abgedeckt und somit vor der Einwirkung der anschließenden Entwicklung und Fixierung geschützt wird. Dieses Abdecken kann durch Überziehen des Films mit einem entwicklungsbeständigen, transparenten Lack oder durch Überkleben mit einem transparenten Klebeband erfolgen. Im letzteren Fall kann das Klebeband gleichzeitig zum Aneinanderreihen der Filme mitverwendet werden. Erfindungsgemäß ist es von besonderem Vorteil, wenn die Vorbelichtung bzw. das Abdecken des Filmmaterials im Bereich der Lochschrift gleichzeitig mit der Aneinanderreihung der einzelnen Filme für deren Entwicklung und Auswertung vorgenommen wird. Hierbei kann die Aneinanderreihung und Entwicklung der Einzelfilme beispielsweise nach einem Verfahren erfolgen, wie es dem deutschen Patent 959 I5= zugrunde liegt.The reproduction of the hole writing on the copy is naturally the same The better, the higher the optical density in the area of the perforations of the dosimeter film used is. The optical density of the edge areas comprising the perforations is therefore elevated and this can happen if the film material is in the area of the hole writing is exposed at any point in time prior to development. This pre-exposure can be achieved both by visible light and by suitable radiation, e.g. B. soft X-rays or ß-radiation, from which the remaining parts of the film are protected will take place. The pre-development optical density of the holes extensive marginal areas can be maintained by allowing the development and fixation of the film in the area of the perforated writing is prevented, preferably in that the film material is covered in the area of the perforated writing and thus in front the action of subsequent development and fixation is protected. This Covering can be done by covering the film with a development-resistant, transparent Varnish or by pasting over with a transparent adhesive tape. In the latter In this case, the adhesive tape can also be used to line up the films will. According to the invention it is of particular advantage if the pre-exposure or the covering of the film material in the area of the perforated writing at the same time as the lining up of the individual films for their development and evaluation. Here the sequencing and development of the individual films can, for example, according to a Procedures take place as it is based on the German patent 959 I5 =.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zum Kopieren von entwickelten mit Lochschrift versehenen Dosimeterfilmoriginalen auf ein lichtempfindliches Material mit steiler Gradation für Dokumentationszwecke, dadurch gekennzeichnet, daß hierfür Dosimeterfilmoriginale verwendet werden, deren optische Dichte im Bereich der Lochschrift gegenüber ihrem sonstigen Bereich dadurch erhöht ist, daß sie zu einem beliebigen Zeitpunkt vor der Entwicklung im Bereich der Lochschrift belichtet oder durch deren Abdeckung, z. B. mittels Lakkieren oder Überkleben, gegen die Einwirkung von Entwicklung und Fixierung geschützt werden. z. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß Dosimeterfilme verwendet werden, bei denen die Vorbelichtung bzw. das Abdecken des Filmmaterials im Bereich der Lochschrift gleichzeitig mit der Aneinanderreihung der einzelnen Filme für deren Entwicklung und Auswertung vorgenommen wird. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 555 203, 547 675; britische Patentschrift Nr. 596.o49.PATENT CLAIMS: r. Process for copying developed dosimeter film originals provided with hole writing onto a light-sensitive material with steep gradation for documentation purposes, characterized in that dosimeter film originals are used for this purpose, the optical density of which in the area of the hole writing is increased compared to the rest of the area in that they are present at any point in time the development in the field of perforated writing or exposed through their cover, z. B. by painting or pasting, protected against the effects of development and fixation. z. Method according to Claim r, characterized in that dosimeter films are used in which the pre-exposure or the covering of the film material in the area of the perforated writing is carried out simultaneously with the lining up of the individual films for their development and evaluation. Considered publications: German Patent Specifications No. 555 203, 547 675; British Patent No. 596.o49.
DESCH16601A 1954-10-28 1954-10-28 Process for copying developed, perforated dosimeter films Expired DE976314C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH16601A DE976314C (en) 1954-10-28 1954-10-28 Process for copying developed, perforated dosimeter films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH16601A DE976314C (en) 1954-10-28 1954-10-28 Process for copying developed, perforated dosimeter films

Publications (1)

Publication Number Publication Date
DE976314C true DE976314C (en) 1963-06-27

Family

ID=7427729

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH16601A Expired DE976314C (en) 1954-10-28 1954-10-28 Process for copying developed, perforated dosimeter films

Country Status (1)

Country Link
DE (1) DE976314C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE547675C (en) * 1928-02-17 1932-04-04 Tabulating Machine Company Tabulating machine with transfer printing device
DE555203C (en) * 1931-07-23 1932-07-20 Zeiss Ikon Ag Process for the production of latent indicia on sheets of packaging film
GB596049A (en) * 1944-09-29 1947-12-24 Gen Aniline & Film Corp Improved means for punching registration holes in photographic negatives and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE547675C (en) * 1928-02-17 1932-04-04 Tabulating Machine Company Tabulating machine with transfer printing device
DE555203C (en) * 1931-07-23 1932-07-20 Zeiss Ikon Ag Process for the production of latent indicia on sheets of packaging film
GB596049A (en) * 1944-09-29 1947-12-24 Gen Aniline & Film Corp Improved means for punching registration holes in photographic negatives and the like

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