CA2157898C - Dispositifs optiques multicouches de forme effilee - Google Patents

Dispositifs optiques multicouches de forme effilee Download PDF

Info

Publication number: CA2157898C
Authority: CA; Canada
Prior art keywords: layer; light; tapered; wedge; redirecting
Prior art date: 1993-03-11
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 - Fee Related

Application number

CA002157898A

Other languages

English (en)

Other versions

CA2157898A1 (fr

Inventor

Roland Winston

Benjamin A. Jacobson

Robert L. Holman

Neil A. Gitkind

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 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.)

1993-03-11

Filing date

1994-03-11

Publication date

2006-06-13

1993-03-11 Priority claimed from US08/029,883 external-priority patent/US5303322A/en

1994-03-11 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1994-03-11 Priority to CA002540097A priority Critical patent/CA2540097A1/fr

1994-09-15 Publication of CA2157898A1 publication Critical patent/CA2157898A1/fr

2006-06-13 Application granted granted Critical

2006-06-13 Publication of CA2157898C publication Critical patent/CA2157898C/fr

2014-03-11 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

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Landscapes

Optical Elements Other Than Lenses (AREA)
Planar Illumination Modules (AREA)

CA002157898A 1993-03-11 1994-03-11 Dispositifs optiques multicouches de forme effilee Expired - Fee Related CA2157898C (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA002540097A CA2540097A1 (fr)	1993-03-11	1994-03-11	Dispositifs optiques multicouches de forme effilee

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US08/029,883 US5303322A (en)	1992-03-23	1993-03-11	Tapered multilayer luminaire devices
US029,883		1993-03-11
PCT/US1994/002598 WO1994020871A1 (fr)	1993-03-11	1994-03-11	Dispositif d'eclairage conique a couches multiples

Related Child Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002540097A Division CA2540097A1 (fr)	1993-03-11	1994-03-11	Dispositifs optiques multicouches de forme effilee

Publications (2)

Publication Number	Publication Date
CA2157898A1 CA2157898A1 (fr)	1994-09-15
CA2157898C true CA2157898C (fr)	2006-06-13

Family

ID=36587334

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002157898A Expired - Fee Related CA2157898C (fr)	1993-03-11	1994-03-11	Dispositifs optiques multicouches de forme effilee

Country Status (1)

Country	Link
CA (1)	CA2157898C (fr)

1994
- 1994-03-11 CA CA002157898A patent/CA2157898C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2157898A1 (fr)	1994-09-15

Legal Events

Date	Code	Title	Description
2001-02-06	EEER	Examination request
2010-03-11	MKLA	Lapsed

Publication	Publication Date	Title
EP0746787B1 (fr)	2004-05-26	Dispositif d'eclairage conique a couches multiples
US5237641A (en)	1993-08-17	Tapered multilayer luminaire devices
US6044196A (en)	2000-03-28	Luminaire device
US5528720A (en)	1996-06-18	Tapered multilayer luminaire devices
EP0760962B1 (fr)	2002-10-02	Luminaire conique multicouche
CA2280085C (fr)	2006-06-06	Dispositif d'eclairage
US6256447B1 (en)	2001-07-03	Backlight for correcting diagonal line distortion
EP0880723A1 (fr)	1998-12-02	Appareil d'eclairage par l'arriere d'un affichage a cristaux liquides
US7581867B2 (en)	2009-09-01	Brightness enhancement film using an array of light concentrators
KR20030015378A (ko)	2003-02-20	구조화된 면을 구비한 백라이트
HK1016023B (en)	2005-03-18	Tapered multilayer luminaire devices
CA2540097A1 (fr)	1994-09-15	Dispositifs optiques multicouches de forme effilee
KR100300538B1 (ko)	2001-10-26	테이퍼형상의다층조명장치