EP0000209B1 - Polarisator für sichtbares Licht bestehend aus einem mit Jod gefärbten Polyvinylalkoholfilm und Verfahren zu seiner Herstellung - Google Patents

Polarisator für sichtbares Licht bestehend aus einem mit Jod gefärbten Polyvinylalkoholfilm und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0000209B1
EP0000209B1 EP78200002A EP78200002A EP0000209B1 EP 0000209 B1 EP0000209 B1 EP 0000209B1 EP 78200002 A EP78200002 A EP 78200002A EP 78200002 A EP78200002 A EP 78200002A EP 0000209 B1 EP0000209 B1 EP 0000209B1
Authority
EP
European Patent Office
Prior art keywords
iodine
polyvinyl alcohol
stained
staining
solution
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
EP78200002A
Other languages
English (en)
French (fr)
Other versions
EP0000209A1 (de
Inventor
Norman William Schuler
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Publication of EP0000209A1 publication Critical patent/EP0000209A1/de
Application granted granted Critical
Publication of EP0000209B1 publication Critical patent/EP0000209B1/de
Expired legal-status Critical Current

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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
    • 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

Definitions

  • a highly efficient light polarising element has been prepared which finds utility not only in conventional situations but in some unconventional situations, where as close to absolute extinction as is possible is required in the crossed position as in, for example, flash blindness goggles, such as might be employed by welders and others exposed to sudden bursts of extremely bright visible radiation which is potentially harmful to the eyes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Coloring (AREA)

Claims (5)

1. Verfahren zur Hestellung eines Lichtpolarisationselements, wobei ein' in einer Achse gestreckter Polyvinylalkoholfilm mit einer Jodlösung angefärbt und der angefärbte Film mit einer wäßrigen Boratisierlösung behandelt wird, dadurch gekennzeichnet, daß die Boratisierlösung Kaliumjodid in einer zur weitgehenden Verhinderung des Verlustes an Blauabsorption ausreichenden Menge enthält und daß nach dem Anfärben Zinkionen in das Polarisationselement eingebaut werden.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zinkionen nach dem Anfärben dadurch in das Polarisationselement eingebaut werden, daß der Boratisierlösung Zinkionen zugesetzt werden.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Zinkionen durch Auflösung von Zinkchlorid in der Boratisierlösung zur Verfügung gestellt werden.
4. Verfahren nach einem der vorausgehenden Ansprüche, dadurch gekennzeichnet, daß die Boratisierlösung Borsäure enthält.
5. Lichtpolarisationselement, enthaltend einen in einer Achse gestreckten Polyvinylalkoholfilm, der mit Jod angefärbt ist und der eine angefärbte Oberflächenschicht mit einem Polyvinylborat enthält, dadurch gekennzeichnet, daß die angefärbte Oberflächenschicht zusätzlich Kaliumjodid in einer zur weitgehenden Verhinderung des Verlustes in Blauabsorption ausreichenden Menge enthält, und daß nach dem Anfärben Zinkionen in der Oberflächenschicht absorbiert worden sind.
EP78200002A 1977-06-29 1978-06-01 Polarisator für sichtbares Licht bestehend aus einem mit Jod gefärbten Polyvinylalkoholfilm und Verfahren zu seiner Herstellung Expired EP0000209B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81099677A 1977-06-29 1977-06-29
US810996 1977-06-29

Publications (2)

Publication Number Publication Date
EP0000209A1 EP0000209A1 (de) 1979-01-10
EP0000209B1 true EP0000209B1 (de) 1982-02-10

Family

ID=25205251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78200002A Expired EP0000209B1 (de) 1977-06-29 1978-06-01 Polarisator für sichtbares Licht bestehend aus einem mit Jod gefärbten Polyvinylalkoholfilm und Verfahren zu seiner Herstellung

Country Status (5)

Country Link
EP (1) EP0000209B1 (de)
JP (1) JPS6033245B2 (de)
AU (1) AU517329B2 (de)
DE (1) DE2861617D1 (de)
IT (1) IT1097458B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5614533A (en) * 1979-07-16 1981-02-12 Shin Etsu Chem Co Ltd Production of polarizing film or sheet
JPH0612362B2 (ja) * 1983-03-01 1994-02-16 住友化学工業株式会社 耐久性の優れた偏光板
US4591512A (en) * 1985-01-25 1986-05-27 Polaroid Corporation Method of making light polarizer
JP2663440B2 (ja) * 1987-06-12 1997-10-15 三菱瓦斯化学株式会社 偏光フィルムの製造方法
JPH02244006A (ja) * 1989-03-17 1990-09-28 Nippon Kayaku Co Ltd 位相差フィルム及びその製造法
JP4566384B2 (ja) 2000-10-30 2010-10-20 日東電工株式会社 偏光板
JP2002148434A (ja) * 2000-11-08 2002-05-22 Nitto Denko Corp 偏光板
JP2003029043A (ja) * 2001-07-19 2003-01-29 Nitto Denko Corp 偏光子の製造方法、偏光子、偏光板および液晶表示装置
JP4043263B2 (ja) 2002-03-18 2008-02-06 日東電工株式会社 偏光子の製造方法、偏光子、偏光板および画像表示装置
KR100938786B1 (ko) 2002-12-12 2010-01-27 스미또모 가가꾸 가부시끼가이샤 편광 필름의 제조 방법
KR100916955B1 (ko) 2003-04-21 2009-09-14 닛토덴코 가부시키가이샤 편광자, 그 제조 방법, 편광판, 광학 필름 및 화상 표시장치
JP2007316366A (ja) * 2006-05-26 2007-12-06 Nippon Shokubai Co Ltd 偏光子保護フィルム、偏光板、および画像表示装置
JP6049600B2 (ja) 2013-11-29 2016-12-21 住友化学株式会社 偏光子及びそれを含む偏光板
JP5996516B2 (ja) 2013-11-29 2016-09-21 住友化学株式会社 偏光子及びそれを含む偏光板
JP5932760B2 (ja) 2013-11-29 2016-06-08 住友化学株式会社 偏光子及びそれを含む偏光板
EP3454440A1 (de) * 2017-09-11 2019-03-13 Woertz Engineering AG Anschlussvorrichtung und elektrische tunnelinstallation
CN114355497A (zh) * 2020-10-14 2022-04-15 恒美光电股份有限公司 一种偏光子及其处理方法和制得的偏光片

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23297E (en) * 1950-11-28 Sheetlike light-polarizing complex
US2328219A (en) * 1938-10-29 1943-08-31 Polaroid Corp Light polarizer and process of manufacture
CH216195A (de) * 1938-12-09 1941-08-15 Zeiss Ikon Ag Verfahren zur Herstellung von Polarisationsfiltern.
US2375963A (en) * 1943-05-07 1945-05-15 Polaroid Corp Process of manufacturing lightpolarizing material
DE1258084B (de) * 1956-07-02 1968-01-04 Polaroid Corp Verfahren zur Herstellung gefaerbter, lichtpolarisierender Folien

Also Published As

Publication number Publication date
AU517329B2 (en) 1981-07-23
IT1097458B (it) 1985-08-31
AU3627778A (en) 1979-11-22
JPS5416575A (en) 1979-02-07
DE2861617D1 (en) 1982-03-18
EP0000209A1 (de) 1979-01-10
JPS6033245B2 (ja) 1985-08-01
IT7825114A0 (it) 1978-06-29

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