Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm?L2?L1?50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

Abstract: A lighting fixture arrangement, an adjustable lighting fixture connector, and a method of installing a lighting fixture arrangement.

Abstract: An insulating structure comprises a board of insulating material having two major surfaces, two side edges and top and bottom edges, and facing sheets on each of the major surfaces, and a generally rectangular closure strip having two equal and integral side portions. One side portion is bonded to one of the facing sheets and extends over said facing sheet from the top edge to the bottom edge and inwardly a short distance from one of the side edges of the board. The other side portion extends outwardly away from the board a short distance from said side edge. A plurality of the insulating structures are positioned in abutting relationship to form an insulating envelope covering a wall or roof of a building.

Abstract: A plastic foam-forming mixture, e.g. a polyurethane or polyisocyanurate foam mix, deposited on a carrier, is metered through two spaced opposed members forming therebetween a metering gap. At least one of the members is malleable through changes in temperature so that the profile of the metering gap can be variously defined. Foam boards having a highly uniform thickness are thereby continuously and expeditiously producible.