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Frank Poradish, James M Florence: Full-color projection display system using two light modulators. Texas Instruments Incorporated, Ira S Matsil, James C Kesterson, Richard L Donaldson, March 18, 1997: US05612753 (95 worldwide citation)

A full color projection system is disclosed herein. The projection system includes a means for generating a first light beam and also a means for generating a second light beam. These means may include either separate light sources 10a and 10b or a single light source 10 and a means for dividing the ...


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Frank Poradish, James M Florence: Full-color projection display system using two light modulators. Texas Instruments Incorporated, Charles A Brill, Frederick J Telecky Jr, Richard L Donaldson, May 18, 1999: US05905545 (65 worldwide citation)

A full color projection system is disclosed herein. The projection system includes a means for generating a first light beam and also a means for generating a second light beam. These means may include either separate light sources 10a and 10b or a single light source 10 and a means for dividing the ...


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Frank Poradish: Color wheel with plastic film filters. Texas Instruments Incorporated, Julie L Reed, James C Kesterson, Richard L Donaldson, July 7, 1998: US05777694 (9 worldwide citation)

A color wheel (15) for use in a display system (10). The color wheel (15) is comprised of a rigid hub (23) and an outer perimeter of color filter segments (21), which are made from a thin plastic material.


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Duane Scott Dewald, William B Werner, Frank Poradish: Automated lamp focus. Texas Instruments Incorporated, July 4, 2002: US20020085288-A1 (1 worldwide citation)

Methods for measuring and automatically controlling the light distribution and overall brightness in electronic-based spatial light modulator projection display systems. One method takes a small fraction of the projected light from a partial turning mirror 407 in the projector's optics path and focu ...


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Iwai Junichi, Frank Poradish: Mirror surface deflection type space light modulating device and projector device. Sony, Texas Instr &Lt Ti&Gt, April 4, 1997: JP1997-090250

PROBLEM TO BE SOLVED: To prevent the deterioration in picture quality of a projection image due to scattered light in an invalid reflection area related to a mirror surface deflection type space light modulating device and a projector device. SOLUTION: By providing a mirror surface reflection layer ...


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Frank Poradish: Color wheel having plastic film filter. Texas Instr &Lt Ti&Gt, January 10, 1997: JP1997-005515

PROBLEM TO BE SOLVED: To provide a color wheel for an image display system device which is low in cost, is lightweight and is suitable for mass production. SOLUTION: The color wheel 15 has a solid hub and the outer edge of the color filter segments formed of thin plastic members. The circular ends o ...


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Hara Nobuyuki, Matsui Takeshi, Frank Poradish: Light modulator and projector. Texas Instr &Lt Ti&Gt, Sony, May 21, 1996: JP1996-129227

PURPOSE: To make simplification and miniaturization for high luminance of a displayed image by moving a holder unit in the rotating, vertical and/or horizontal direction so as to adjust an image in the rotating, vertical and/or horizontal direction. CONSTITUTION: A part 66 of a board 61 having a lig ...