Kristin A Schroeder

US Patent:

6821007, Nov 23, 2004

Filed:

Jun 3, 2002

Appl. No.:

10/030311

Inventors:

Cheryl A. Olman - Minneapolis MN
Kristin M. Schroeder - Roseville MN
Robert H. Lowe - Woodbury MN

Assignee:

3M Innovative Properties Company - Saint Paul MN

International Classification:

F21V 900

US Classification:

362511, 362581, 2961804, 40615

Abstract:

A compact, and low maintenance back lit illuminated sign ( ), especially such a back lit sign suitable for use on a vehicle. The shallow back lit illuminated sign ( ) comprises a housing ( ), a light source ( ) suitable for supplying light to a light fiber ( ), and at least one side-light emitting fiber ( ). The housing ( ) has a sign face ( ) and an interior surface ( ) that includes a back surface ( ). The sign face ( ) has an illuminated area that diffusely transmits light. The back surface ( ) is located at a depth from the sign face ( ). One or more side-light emitting fibers ( ) are connected so as to receive light from the light source ( ) and are mounted within the housing ( ) so as to limit the amount of emitted light, from the fiber(s) ( ), that travels directly to the sign face ( ).

US Patent:

58209573, Oct 13, 1998

Filed:

May 6, 1996

Appl. No.:

8/646709

Inventors:

Kristin M. Schroeder - Roseville MN
Brian L. Koster - Mendota Heights MN
Timothy T. Magill - Maplewood MN
Kenneth G. Olson - Woodbury MN
Takashi Harada - Tokyo, JP

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 300

US Classification:

428 401

Abstract:

An anti-reflective film construction contains an optically transparent polymeric film having a textured surface and an optically transparent adhesive, the film construction configured to exhibit light transmission of greater than about 70 percent and 60. degree. gloss measurement of between about 15 and 100. Methods of producing such film constructions and methods of reducing reflection from a surface are also described.