Solutia Inc.

Windshields are disclosed herein having an optical path, that include an inner rigid substrate, optically adjacent a first wedge polymer layer, that serves to reflect a primary image. A reflective layer is also provided, positioned in the optical path between the first wedge polymer layer and a second wedge polymer layer. The windshields are further provided with an outer rigid substrate, optically adjacent the second wedge polymer layer. The first wedge polymer layer causes visible light reflected from the reflective layer to overlap the primary image, and the second wedge polymer layer causes visible light reflected from an outer face of the outer rigid substrate to overlap the primary image.

Display systems for viewing information are disclosed, that comprise a glazing, one or more holographic optical elements which reflect light within three or more discrete wavelength ranges; and one or more narrow-band absorbers that selectively absorb light of the same wavelengths as those reflected by the holographic optical elements. Also disclosed are methods of preventing or reducing stray light artifacts resulting from reflection or transmission from one or more holographic optical elements.

A display system for displaying information is disclosed, the display system comprising a glazing that includes a first transparent rigid substrate, a second transparent rigid substrate, and an interlayer positioned between the first and the second transparent rigid substrates; a projector that emits light toward the glazing at three discrete wavelength ranges in the visible spectrum; and at least three narrow band absorbers, disposed in a vision area of the glazing, that selectively absorb light within the three wavelength ranges emitted by the projector.

An electrochromic device is disclosed. The electrochromic device includes (i) a first substrate with an electrically conductive layer on an inner surface thereof; (ii) a second substrate with an electrically conductive layer on an inner surface thereof; (iii) an electrochromic assembly comprising at least one electrochromic layer; (iv) a first bus bar pair comprising a positive bus bar electrically connected to the electrically conductive layer of the first substrate and a negative bus bar electrically connected to the electrically conductive layer of said second substrate; and (v) a second bus bar pair including a positive bus bar electrically connected to the electrically conductive layer of the first substrate and a negative bus bar electrically connected to the electrically conductive layer of the second substrate. A process for reversibly changing the optical properties of an electrochromic device that includes at least one electrochromic layer is also described.