CA2249610A1 - Nonpolarizing beamsplitter - Google Patents

Nonpolarizing beamsplitter

Info

Publication number
CA2249610A1
CA2249610A1 CA002249610A CA2249610A CA2249610A1 CA 2249610 A1 CA2249610 A1 CA 2249610A1 CA 002249610 A CA002249610 A CA 002249610A CA 2249610 A CA2249610 A CA 2249610A CA 2249610 A1 CA2249610 A1 CA 2249610A1
Authority
CA
Canada
Prior art keywords
beamsplitter
polarized component
layers
nonpolarizing
incident beam
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.)
Granted
Application number
CA002249610A
Other languages
French (fr)
Other versions
CA2249610C (en
Inventor
Michael F. Weber
Andrew J. Ouderkirk
Carl A. Stover
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.)
3M Co
Original Assignee
Minnesota Mining And Manufacturing Company
Michael F. Weber
Andrew J. Ouderkirk
Carl A. Stover
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 Minnesota Mining And Manufacturing Company, Michael F. Weber, Andrew J. Ouderkirk, Carl A. Stover filed Critical Minnesota Mining And Manufacturing Company
Publication of CA2249610A1 publication Critical patent/CA2249610A1/en
Application granted granted Critical
Publication of CA2249610C publication Critical patent/CA2249610C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/142—Coating structures, e.g. thin films multilayers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/287—Interference filters comprising deposited thin solid films comprising at least one layer of organic material
    • 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
    • G02B5/3041—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 comprising multiple thin layers, e.g. multilayer stacks
    • G02B5/305—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 comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Abstract

A nonpolarizing beamsplitter (10) is provided, comprising a multilayered stack (11) of alternating layers (A, B) of a first material and a second material. The first material layers (A) are uniaxially birefringent, and the second material layers (B) are optionally uniaxially birefringent or isotropic. The layers have index of refraction relationships such that for an incident beam having a useful bandwidth, a p-polarized component and an s-polarized component striking the beamsplitter at any angle of incidence .theta. within a desired range, the beamsplitter exhibits substantially the same average reflectivity for the p-polarized component of the incident beam as for the s-polarized component.
The invention also includes a method of making a nonpolarizing beamsplitter.
CA002249610A 1996-03-27 1997-02-28 Nonpolarizing beamsplitter Expired - Fee Related CA2249610C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/623,342 US5808798A (en) 1996-03-27 1996-03-27 Nonpolarizing beamsplitter
US08/623342 1996-03-27
PCT/US1997/003172 WO1997036195A1 (en) 1996-03-27 1997-02-28 Nonpolarizing beamsplitter

Publications (2)

Publication Number Publication Date
CA2249610A1 true CA2249610A1 (en) 1997-10-02
CA2249610C CA2249610C (en) 2005-05-03

Family

ID=24497718

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002249610A Expired - Fee Related CA2249610C (en) 1996-03-27 1997-02-28 Nonpolarizing beamsplitter

Country Status (9)

Country Link
US (1) US5808798A (en)
EP (1) EP0890120B1 (en)
JP (1) JP2000508081A (en)
AU (1) AU2060397A (en)
BR (1) BR9708360A (en)
CA (1) CA2249610C (en)
DE (1) DE69713755T2 (en)
ES (1) ES2179306T3 (en)
WO (1) WO1997036195A1 (en)

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US20130314788A1 (en) * 2012-05-24 2013-11-28 Extend Optronics Corp. Reflective optical film and method of manufacturing the same, and image display device
LT6657B (en) 2018-02-09 2019-09-25 Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras Non-polarizing beam splitter and its forming method
EP3778223A4 (en) 2018-04-10 2022-01-26 Toray Industries, Inc. Layered film and display device
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EP4042213A4 (en) 2020-05-14 2022-10-12 Univerzita Palackého v Olomouci Polarizing optical separator for stellar intensity interferometry
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Also Published As

Publication number Publication date
AU2060397A (en) 1997-10-17
US5808798A (en) 1998-09-15
CA2249610C (en) 2005-05-03
EP0890120A1 (en) 1999-01-13
DE69713755D1 (en) 2002-08-08
BR9708360A (en) 1999-08-03
DE69713755T2 (en) 2002-11-14
ES2179306T3 (en) 2003-01-16
WO1997036195A1 (en) 1997-10-02
EP0890120B1 (en) 2002-07-03
JP2000508081A (en) 2000-06-27

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