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James M Jonza, Michael F Weber, Andrew J Ouderkirk, Carl A Stover: Optical film. Minnesota Mining and Manufacturing Company, John A Fortkort, March 16, 1999: US05882774 (541 worldwide citation)

Birefringent multilayer optical films in which the refractive indices in the thickness direction of two adjacent layers are substantially matched have a Brewster angle (the angle at which reflectance of p-polarized light goes to zero) which is very large or is nonexistant. This allows for the constr ...


2
Michael F Weber, Andrew J Ouderkirk, David J W Aastuen: Optical panel capable of switching between reflective and transmissive states. Minnesota Mining and Manufacturing Company, Gary L Griswold, Walter N Kirn Jr, H Sanders Gwin Jr, November 11, 1997: US05686979 (306 worldwide citation)

A device, comprising a switchable optical panel and means for switching the panel between a reflecting state and a transmitting state. The switchable optical panel includes a transparent optically active layer having a first and a second major surface, a first reflective polarizer disposed on the fi ...


3
Andrew J Ouderkirk, Lockwood W Carlson, Arthur L Kotz, Timothy J Nevitt, Carl A Stover, Michael F Weber, Richard C Allen, Biswaroop Majumdar: Diffusely reflecting polarizing element including a first birefringent phase and a second phase. Minnesota Mining and Manufacturing Company, John A Fortkort, October 20, 1998: US05825543 (281 worldwide citation)

An optical film with a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, ...


4
Richard C Allen, Lockwood W Carlson, Andrew J Ouderkirk, Michael F Weber, Arthur L Kotz, Timothy J Nevitt, Carl A Stover, Biswaroop Majumdar: Brightness enhancement film. 3M Innovative Properties Company, John A Fortkort, August 29, 2000: US06111696 (259 worldwide citation)

An optical film is provided which comprises a disperse phase of polymeric particles disposed within a continuous birefringent matrix in combination with light directing materials to enable control of light emitted from a lighting fixture or display. The film is oriented, typically by stretching, in ...


5
Laurence R Gilbert, Andrew J Ouderkirk: Metal-coated multilayer mirror. Minnesota Mining and Manufacturing Co, Gary L Griswold, Walter N Kirn Jr, Stephen W Buckingham, December 16, 1997: US05699188 (225 worldwide citation)

A metal-coated multilayer mirror having high reflectivity and high specularity. The mirror comprises a multilayered polymer film and a reflective metal layer. The multilayered polymer film preferably comprises layers of a crystalline, semi-crystalline, or liquid crystalline material, such as a napht ...


6
Andrew J Ouderkirk, Lockwood W Carlson, Arthur L Kotz, Timothy J Nevitt, Carl A Stover, Michael F Weber, Richard C Allen, Biswaroop Majumdar: Method for making an optical film. Minnesota Mining and Manufacturing Company, John A Fortkort, July 21, 1998: US05783120 (211 worldwide citation)

An optical film is provided which includes a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase ...


7
James M Jonza, Michael F Weber, Andrew J Ouderkirk, Carl A Stover: Process for forming reflective polarizer. 3M Innovative Properties Company, William D Miller, October 12, 1999: US05965247 (208 worldwide citation)

A method of forming a reflective polarizer comprising orienting a multilayer film formed from alternating layers of a first polymeric material and a second polymeric material in a first in-plane axis direction while allowing dimensional relaxation in an orthogonal second in-plane axis direction to p ...


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Michael F Weber, Timothy J Nevitt, William W Merrill, Kelly M Roscoe, Andrew J Ouderkirk, John A Wheatley, Gary B Hanson, James M Jonza, Jeffrey A Boettcher, Yaoqi J Liu, Terence D Neavin: Color shifting film. 3M Innovative Properties Company, Robert J Pechman, March 11, 2003: US06531230 (197 worldwide citation)

Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a highly uniform change in color as a function of viewing angle.


10
Laurence R Gilbert, James M Jonza, Andrew J Ouderkirk, Carl A Stover, Michael F Weber, William W Merrill: Multilayer polymer film with additional coatings or layers. 3M Innovative Properties Company, April 9, 2002: US06368699 (187 worldwide citation)

A multilayer polymer film has an optical stack including a plurality of alternating polymer layers with skin layers having mechanical, optical, or chemical properties differing from those of the layers in the optical stack, wherein the refractive indices in the in-plane direction n



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