AU2001281245A1 - Optical sheets suitable for spreading light - Google Patents

Optical sheets suitable for spreading light

Info

Publication number
AU2001281245A1
AU2001281245A1 AU2001281245A AU8124501A AU2001281245A1 AU 2001281245 A1 AU2001281245 A1 AU 2001281245A1 AU 2001281245 A AU2001281245 A AU 2001281245A AU 8124501 A AU8124501 A AU 8124501A AU 2001281245 A1 AU2001281245 A1 AU 2001281245A1
Authority
AU
Australia
Prior art keywords
optical sheets
sheets suitable
spreading light
spreading
light
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
AU2001281245A
Inventor
Michael C. Lea
Charles A. Marttila
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 Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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
Priority claimed from US09/646,363 external-priority patent/US6456437B1/en
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of AU2001281245A1 publication Critical patent/AU2001281245A1/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
    • G02B5/0231—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 microprismatic or micropyramidal shape
    • 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
    • G02B5/0263—Diffusing elements; Afocal elements characterised by the diffusing properties with positional variation of the diffusing properties, e.g. gradient or patterned diffuser
    • 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
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
AU2001281245A 2000-09-14 2001-08-10 Optical sheets suitable for spreading light Abandoned AU2001281245A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/646,363 US6456437B1 (en) 1999-01-14 2000-09-14 Optical sheets suitable for spreading light
US09/646,363 2000-09-14
PCT/US2001/025221 WO2002023258A2 (en) 2000-09-14 2001-08-10 Optical sheets suitable for spreading light

Publications (1)

Publication Number Publication Date
AU2001281245A1 true AU2001281245A1 (en) 2002-03-26

Family

ID=24592761

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001281245A Abandoned AU2001281245A1 (en) 2000-09-14 2001-08-10 Optical sheets suitable for spreading light

Country Status (2)

Country Link
AU (1) AU2001281245A1 (en)
WO (1) WO2002023258A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389171A (en) * 2002-05-02 2003-12-03 Indigitale Ltd Distributor for lighting apparatus
GB0427607D0 (en) 2004-12-16 2005-01-19 Microsharp Corp Ltd Structured optical film
DE102005027799B4 (en) * 2005-06-16 2007-09-27 Saint-Gobain Glass Deutschland Gmbh Method for producing a transparent pane with a surface structure and apparatus for carrying out the method
SE0600675L (en) * 2006-03-24 2007-02-20 Prismalence Ab Lighting fixture with a cover glass which includes parallel projecting cams
AT509563B1 (en) 2010-03-01 2015-10-15 Hierzer Andreas LIGHT WITH LIGHTING ELEMENTS
EP2697558B1 (en) * 2011-04-14 2022-11-09 Bright View Technologies Corporation Light transmissive structures and fabrication methods for controlling far-field light distribution
EP3084487B1 (en) 2013-12-19 2024-03-20 Bright View Technologies Corporation 2d deglaring diffusers increasing axial luminous intensity
MX2019003219A (en) * 2016-09-21 2019-10-24 Solatube Int Inc Daylight collectors with diffuse and direct light collection.
WO2019192934A1 (en) * 2018-04-03 2019-10-10 Signify Holding B.V. Lighting system for outdoor lighting

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB759325A (en) * 1954-08-27 1956-10-17 Owens Illinois Glass Co Control of daylighting
US3068754A (en) * 1958-07-30 1962-12-18 Corning Giass Works Prismatic light transmitting panel
US4411493A (en) * 1981-10-05 1983-10-25 Miller Jack V Seasonal control skylight glazing panel with passive solar energy switching
US4755921A (en) * 1986-04-02 1988-07-05 Minnesota Mining And Manufacturing Company Lens
US5040883A (en) * 1989-10-30 1991-08-20 Minnesota Mining And Manufacturing Company Light fixture with beam shaping lens
JPH0682635A (en) * 1992-07-07 1994-03-25 Sekisui Chem Co Ltd Surface light source device
US5655830A (en) * 1993-12-01 1997-08-12 General Signal Corporation Lighting device
JPH08129146A (en) * 1994-09-05 1996-05-21 Olympus Optical Co Ltd Video display device
WO1996027757A1 (en) * 1995-03-03 1996-09-12 Minnesota Mining And Manufacturing Company Light directing film having variable height structured surface and light directing article constructed therefrom
GB9603639D0 (en) * 1996-02-21 1996-04-17 Milner Peter J A light-diverting optical component
US5919551A (en) * 1996-04-12 1999-07-06 3M Innovative Properties Company Variable pitch structured optical film
IT1289716B1 (en) * 1996-12-05 1998-10-16 Fiat Ricerche LIGHTING DEVICE SUITABLE TO GENERATE A RECTANGULAR PATTERN IN THE WORKING AREA, FOR EXAMPLE FOR THE LIGHTING OF STRIPS
US6024452A (en) * 1997-04-22 2000-02-15 3M Innovative Properties Company Prismatic light beam homogenizer for projection displays
JP2002535690A (en) * 1999-01-14 2002-10-22 ミネソタ マイニング アンド マニュファクチャリング カンパニー Optical sheet suitable for light diffusion

Also Published As

Publication number Publication date
WO2002023258A3 (en) 2003-02-06
WO2002023258A2 (en) 2002-03-21

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