US 7,587,117 B2
Luminaire device
Roland Winston, Chicago, Ill. (US); Robert L. Holman, Evanston, Ill. (US); Benjamin A. Jacobson, Chicago, Ill. (US); Robert M. Emmons, Woodbury, Minn. (US); and Philip Gleckman, Eindhoven (Netherlands)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Oct. 18, 2006, as Appl. No. 11/583,488.
Application 11/583488 is a continuation of application No. 11/130066, filed on May 16, 2005, granted, now 7,209,628.
Application 11/130066 is a continuation of application No. 10/641304, filed on Aug. 14, 2003, granted, now 6,993,242.
Application 10/641304 is a continuation of application No. 09/995497, filed on Nov. 27, 2001, granted, now 6,671,452.
Application 09/995497 is a continuation of application No. 09/533043, filed on Mar. 22, 2000, granted, now 6,335,999.
Application 09/533043 is a continuation of application No. 08/999149, filed on Dec. 29, 1997, granted, now 6,044,196.
Application 08/999149 is a continuation of application No. 08/783212, filed on Jan. 13, 1997, granted, now 6,002,829.
Application 08/783212 is a continuation of application No. 08/486784, filed on Jun. 07, 1995, granted, now 5,594,830.
Application 08/486784 is a continuation of application No. 08/226016, filed on Apr. 11, 1994, granted, now 5,528,720.
Application 08/226016 is a continuation in part of application No. 08/029883, filed on Mar. 11, 1993, granted, now 5,303,322.
Application 08/029883 is a continuation in part of application No. 07/855838, filed on Mar. 23, 1992, granted, now 5,237,641.
Prior Publication US 2007/0036512 A1, Feb. 15, 2007
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/10 (2006.01)
U.S. Cl. 385—146  [385/901; 362/558; 362/559; 362/560] 11 Claims
OG exemplary drawing
 
1. An optical device for outputting light comprising:
a base layer having first and second surfaces and a back surface spanning the first and second surfaces, the base layer being capable of receiving light from a light source through the back surface and selectively transmitting the received light from the first and the second surfaces;
a light redirecting layer having a structured surface capable of redirecting light transmitted by the first surface of the base layer; and
a structured reflector layer capable of reflecting light transmitted by the second surface of the base layer.