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Pub. No.: WO/2001/038907 International Application No.: PCT/US1999/031139
Publication Date: 31.05.2001 International Filing Date: 29.12.1999
Chapter 2 Demand Filed: 28.08.2000
IPC:
G02B 5/08 (2006.01) ,G02B 5/26 (2006.01) ,G02B 5/30 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
08
Mirrors
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
20
Filters
26
Reflecting filters
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
Applicants: 3M INNOVATIVE PROPERTIES COMPANY[US/US]; 3M Center P.O. Box 33427 Saint Paul, MN 55133-3427, US
Inventors: CONDO, Peter, D.; US
HEBRINK, Timothy, J.; US
WHEATLEY, John, A.; US
OUDERKIRK, Andrew, J.; US
RUFF, Andrew, T.; US
LIU, Yaoqi, J.; US
ANDRUS, Milton, H., Jr.; US
Agent: BURTIS, John, A. ; 3M Innovative Properties Company Office of Intellectual Property Counsel P.O. Box 33427 Saint Paul, MN 55133-3427, US
Vossius&Partner; Vossius & Partner Patentanwalte P.O.Box 86 07 67 81634 Munchen Germany, DE
Priority Data:
09/444,75622.11.1999US
Title (EN) MULTILAYER OPTICAL BODIES
(FR) CORPS OPTIQUES MULTICOUCHES
Abstract:
(EN) In various aspects, the present invention provides optical bodies configured and arranged to reflect at least a portion of light over at least one wavelength region, the bodies comprising a plurality of first optical layers comprising a polyester having terephthalate comonomer units and ethylene glycol comonomer units and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers. In other aspects, the invention provides optical bodies comprising a plurality of first optical layers, each first optical layer being oriented; and a plurality of second optical layers disposed in a repeating sequence with the plurality of first optical layers, each second optical layer comprising a blend of polymethylmethacrylate and polyvinylidene fluoride. The materials are chosen such that they have compatible glass transition temperatures for orienting the layers.
(FR) L'invention concerne des corps optiques conçus et disposés de façon à refléter au moins une partie de la lumière sur au moins une zone de longueur d'onde, les corps comportant un premier ensemble de couches optiques qui renferment du polyester ayant des unités comonomères de térephtalate et des unités comonomères d'éthylèneglycol, et un second ensemble de couches optiques disposées en séquences répétées avec les couches optiques du premier ensemble. Dans d'autres modes de réalisation, l'invention concerne des corps optiques comprenant un premier ensemble de couches optiques, chaque couche étant orientée, et un second ensemble de couches optiques disposées en séquences répétées avec les couches optiques du premier ensemble, chaque couche du second ensemble renfermant un mélange de polyméthylméthacrylate et de fluorure de polyvinylidène. Les matières sont choisies de façon à posséder des températures de transition vitreuse compatibles pour permettre l'orientation des couches.
front page image
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)