1
Thomas S McKechnie, Jill F Goldenberg, Joshua D Eskin, Jeffrey A Shimizu, Ralph H Bradley Jr, William F Guerinot: Display system with equal path lengths. North American Philips Corporation, Paul R Miller, September 5, 1989: US04864390 (129 worldwide citation)

Display systems useful for projection video and television systems are provided to perform with high efficiency and good color rendition. In these systems, color may be provided, as one example, by various light valves, such as liquid crystal displays. Each of the liquid crystal displays are positio ...


2
Jill F Goldenberg, Joshua D Eskin: Illumination system for an LCD display system. North American Philips, William L Botjer, April 3, 1990: US04913529 (72 worldwide citation)

An illumination system for an LCD projection display system to increase the brightness of the system. The system includes a polarizing beam splitter which splits a beam of light from a light source into two orthogonally polarized beams. The beam of the desired polarization direction is directed thro ...


3
Arne L Duwaer, Jill F Goldenberg: Light valve projection system with improved illumination. North American Philips Corporation, September 8, 1992: US05146248 (49 worldwide citation)

A light valve projection system includes an illumination system having a light collector in the form of a non-imaging reflector with a rectangular input aperture and a rectangular output aperture. A two dimensional light source at the input aperture illuminates the output aperture substantially unif ...


4
Jill F Goldenberg, Wilhelmus A G Timmers: Modulation system for projection display. U S Philips Corporation, Bernard Tiegerman, October 22, 1991: US05060058 (49 worldwide citation)

In a liquid crystal projection t.v. system the color gradient over the projected image, which is due to angular sensitivity of the dichroic mirrors, is minimized by introducing a field lens (61,62,63) next to the light values or LC-panels (21, 22, 23) in the light paths of the blue (b.sub.B), green ...


5
Thomas S McKechnie, Jill F Goldenberg: Projection screen having high resolution and good mechanical stability. North American Philips Corporation, Thomas A Briody, William J Streeter, Marianne R Rich, March 15, 1988: US04730897 (44 worldwide citation)

A screen consists of a clear mechanically stable substrate and a bulk diffuser portion which is as close to the front lenticules as possible. The diffuser may be dispersed within the lenticules or in a separate area immediately adjacent to them. The screen may be a two element screen, either the fro ...


6
Thomas S McKechnie, Jill F Goldenberg, Joshua D Eskin, A Shimizu Jeffrey, Ralph H Bradley Jr, William F Guerinot: Illumination system for LCD projection television. U S Philips Corporation, Paul R Miller, January 28, 1992: US05084807 (39 worldwide citation)

The present invention is directed to illumination structures useful in display systems for projection video and television devices performing with high efficiency and good color rendition. Such illumination sources include a light source having an inner and outer envelope with plane mirrors within t ...


7
Jill F Goldenberg, Roland Winston: Illumination system for non-imaging reflective collector. North American Philips Corporation, William L Botjer, September 11, 1990: US04956759 (33 worldwide citation)

A first concave mirror collects the light emitted by a light source in a first half space and forms a first image of the light source at a point proximate thereto. A second larger concave mirror opposite the first mirror forms second and third images from the respective source and first image. The s ...


8
Jill F Goldenberg, Ralph H Bradley Jr, William F Guerinot, Thomas S McKechnie: One-piece projection screen. North American Philips, Gregory P Gadson, September 27, 1988: US04773731 (33 worldwide citation)

A one-piece projection screen with improved overall efficiency and contrast, the elimination of corner illumination deficiencies and undesirable image artifacts. The optical power of the screen is divided between two or more surfaces acting as Fresnel lenses, and the region or medium separating the ...


9
Thomas S McKechnie, Jill F Goldenberg: Bulk diffuser for a projection television screen. North American Philips Corporation, Thomas A Briody, Jack Oisher, William J Streeter, July 14, 1987: US04679900 (32 worldwide citation)

A bulk diffuser for rear projection television screens which exhibits a Gaussian intensity profile. By appropriately selecting the indices of refraction of the substrate and the spheres therein and the range of diameters of the spheres, the intensity half-angle is made equal to the energy half-angle ...


10
Jill F Goldenberg: Light valve projection system with non imaging optics for illumination. North American Philips Corporation, March 27, 1990: US04912614 (30 worldwide citation)

Display system includes an illumination system which utilizes a light collector in the form of a non-imaging reflector having a rectangular output aperture, a modulating device in the path of light emitted by the illumination system, and a projection lens. Three such collectors having spectrally tun ...