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DE879472C - Process for the production of cemented polarization filters - Google Patents

Process for the production of cemented polarization filters

Info

Publication number
DE879472C
DE879472C DEZ1195D DEZ0001195D DE879472C DE 879472 C DE879472 C DE 879472C DE Z1195 D DEZ1195 D DE Z1195D DE Z0001195 D DEZ0001195 D DE Z0001195D DE 879472 C DE879472 C DE 879472C
Authority
DE
Germany
Prior art keywords
cemented
production
polarization filters
protective layer
cementing
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
DEZ1195D
Other languages
German (de)
Inventor
Otto Dr Vierling
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Priority to DEZ1195D priority Critical patent/DE879472C/en
Application granted granted Critical
Publication of DE879472C publication Critical patent/DE879472C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)

Description

Verfahren zur Herstellung verkitteter Polarisationsfilter Gegenstand der Erfindung ist ein besonderes Herstellungsverfahren für zwischen Deckscheiben verkittete Polarisatoren. Die bekannten dichroitischen Polarisatoren sind gegen verschiedene Chemikalien, z. B. gegen Wasser, mehr oder weniger empfindlich, worunter die Lebensdauer der Polarisatoren leidet. Man hat daher schon vorgeschlagen, die meist in Folienform anfallenden Polarisatoren mit einer sie gegen Feuchtigkeit schützenden S S chicht zu versehen. Vielfach werden die Polarisationsfolien auch zwischen Deckscheiben, z. B. Glas, eingekittet.Process for the manufacture of cemented polarizing filters. Article The invention is a special manufacturing method for between cover disks cemented polarizers. The well-known dichroic polarizers are against various chemicals, e.g. B. to water, more or less sensitive, including the life of the polarizers suffers. It has therefore already been suggested that polarizers, usually in the form of a film, with one protecting them against moisture S layer to be provided. In many cases, the polarization films are also placed between cover panes, z. B. glass, cemented.

Es wurde nun gefunden, daß die an sich geringe, in den zur Verkittung verwendeten Substanzen vorhandene Feuchtigkeit oder andere chemische Stoffe bereits einen schädlichen Einfluß auf die polarisierende Substanz ausüben. Zur Vermeidung diese: Nachteils wird daher nach der Erfindung vorgeschlagen, die Polarisationsfolie vor der Verkittung mit einer sie gegen die schädlichen Stoffe isolierenden Schutzschicht zu überziehen und in diesem Zustand zwischen Deckscheiben zu verkitten. Dabei hat die Schutzschicht die Eigenschaft eines Kittes, d. h. sie verkittet die beiden ihr benachbarten Schichten, miteinander. Die eine Schicht ist in diesem Fall die Polarisationsfolie, die andere die eigentliche Kittsubstanz., auf die wegen anderer ,unten Eigenschaften, z. B. wegen ihrer guten Haftfähigkeit gegenüber der Deckscheibe, nicht verzichtet werden soll.It has now been found that the per se small, in the for cementing used substances, existing moisture or other chemical substances exert a harmful influence on the polarizing substance. To avoid This disadvantage is therefore proposed according to the invention, the polarizing film before cementing with a protective layer that isolates them from harmful substances to be covered and cemented in this state between cover plates. Has the protective layer has the property of a cement, d. H. she cemented both of them to her adjacent layers, with each other. One layer in this case is the polarization film, the other the actual putty substance., on which because of other properties, below, z. B. because of their good adhesion opposite the cover disc, should not be waived.

Die Schutzschicht hat also außer ihrer Schutzwirkung die Aufgabe, eine gute Haftung zwischen Polarisationsfolie und der Kittsubstanz , zu übernehmen., während diese die Haftung zwischen Schutzschicht und Deckscheibe bewerkstelligen muß. Als Schutzschicht zur Verwendung für das erfindungsgemäße Verkittungsverfahren. eignet sich z. B. Nitrocellulose. Zur Verkittung zwischen den Deckscheiben geeignete Stoffe sind unter anderem Kunststoffe auf der Basis der Acrylharze.In addition to its protective effect, the protective layer has the task of to ensure good adhesion between the polarization film and the cement substance., while these bring about the adhesion between the protective layer and the cover pane got to. As a protective layer for use in the cementing method according to the invention. is suitable e.g. B. nitrocellulose. Suitable for cementing between the cover plates Materials include plastics based on acrylic resins.

Der durch das erfinderische Kittverfahren erzielte Vorteil einer größeren Haltbarkeit der Folie gegenüber Feuchtigkeit und anderen schädlichen Stoffen rechtfertigt den an sich geringen. Mehraufwand bei der Verkittung im Vergleich zu bekannten Verfahren.The advantage achieved by the inventive putty method is a greater one Durability of the film against moisture and other harmful substances justifies the in itself small. Additional effort in cementing compared to known methods.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung verkitteter Polarisationsfilter, dadurch gekennzeichnet, daß die Polarisationsfolie vor ihrer Einkittung zwischen Deckscheiben zum Schutz gegen Feuchtigkeit und andere die polarisierende Wirkung schädigende Bestandteile der Kittsubstanz mit einer Schutzschicht versehen wird. a. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß. als Schutzschicht Nitrocellulose und als Substanz für die Einkittung zwischen den Deckscheiben Kunststoffe auf der Basis der Acrylharze verwendet werden.PATENT CLAIMS: i. Process for the production of cemented polarization filters, characterized in that the polarizing film between Cover plates to protect against moisture and other polarizing effects Damaging components of the cement substance is provided with a protective layer. a. Method according to claim i, characterized in that. Nitrocellulose as a protective layer and as a substance for cementing between the cover plates, plastics on the Basis of acrylic resins are used.
DEZ1195D 1943-09-07 1943-09-07 Process for the production of cemented polarization filters Expired DE879472C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ1195D DE879472C (en) 1943-09-07 1943-09-07 Process for the production of cemented polarization filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ1195D DE879472C (en) 1943-09-07 1943-09-07 Process for the production of cemented polarization filters

Publications (1)

Publication Number Publication Date
DE879472C true DE879472C (en) 1953-06-15

Family

ID=7618040

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ1195D Expired DE879472C (en) 1943-09-07 1943-09-07 Process for the production of cemented polarization filters

Country Status (1)

Country Link
DE (1) DE879472C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801888A1 (en) * 1977-12-16 1979-06-21 Bbc Brown Boveri & Cie POLARIZER FOR AN ELECTRO-OPTICALLY ACTIVATED CELL AND METHOD FOR MANUFACTURING IT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801888A1 (en) * 1977-12-16 1979-06-21 Bbc Brown Boveri & Cie POLARIZER FOR AN ELECTRO-OPTICALLY ACTIVATED CELL AND METHOD FOR MANUFACTURING IT

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