AU2001279319A1 - Directional diffuser - Google Patents

Directional diffuser

Info

Publication number
AU2001279319A1
AU2001279319A1 AU2001279319A AU7931901A AU2001279319A1 AU 2001279319 A1 AU2001279319 A1 AU 2001279319A1 AU 2001279319 A AU2001279319 A AU 2001279319A AU 7931901 A AU7931901 A AU 7931901A AU 2001279319 A1 AU2001279319 A1 AU 2001279319A1
Authority
AU
Australia
Prior art keywords
directional diffuser
diffuser
directional
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.)
Abandoned
Application number
AU2001279319A
Inventor
James Cowan
Kenneth A. Haines
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
Publication of AU2001279319A1 publication Critical patent/AU2001279319A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0215—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having a regular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0252—Diffusing elements; Afocal elements characterised by the diffusing properties using holographic or diffractive means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0284—Diffusing elements; Afocal elements characterized by the use used in reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • 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
AU2001279319A 2000-08-01 2001-08-01 Directional diffuser Abandoned AU2001279319A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US22218200P 2000-08-01 2000-08-01
US60/222,182 2000-08-01
PCT/US2001/041559 WO2002010803A2 (en) 2000-08-01 2001-08-01 Directional diffuser

Publications (1)

Publication Number Publication Date
AU2001279319A1 true AU2001279319A1 (en) 2002-02-13

Family

ID=22831215

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001279319A Abandoned AU2001279319A1 (en) 2000-08-01 2001-08-01 Directional diffuser

Country Status (5)

Country Link
US (4) US6608722B2 (en)
EP (1) EP1364233B1 (en)
AU (1) AU2001279319A1 (en)
TW (1) TW571121B (en)
WO (1) WO2002010803A2 (en)

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US8492703B2 (en) * 2009-08-04 2013-07-23 Mitutoyo Corporation Lens aberration correction in a doubly telecentric displacement sensor
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CN109154681B (en) * 2016-04-27 2021-03-30 株式会社可乐丽 Diffusion plate and projection type projection device
CN109884855A (en) * 2017-12-05 2019-06-14 深圳光峰科技股份有限公司 Anti-light screen and its manufacturing method
JP7023018B2 (en) * 2018-03-01 2022-02-21 ナルックス株式会社 Diffusing element
CN110632687B (en) * 2018-06-22 2021-07-27 中国科学院上海微系统与信息技术研究所 Metamaterial crystal structure capable of regulating and controlling electromagnetic wave absorption and preparation method thereof
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Also Published As

Publication number Publication date
US20040100699A1 (en) 2004-05-27
US20050174646A1 (en) 2005-08-11
TW571121B (en) 2004-01-11
US6940665B2 (en) 2005-09-06
US7460303B2 (en) 2008-12-02
US20080013180A1 (en) 2008-01-17
US20020141065A1 (en) 2002-10-03
US6608722B2 (en) 2003-08-19
WO2002010803A2 (en) 2002-02-07
WO2002010803A3 (en) 2003-09-18
EP1364233B1 (en) 2013-01-02
EP1364233A2 (en) 2003-11-26

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