1
Steve Brice, Gary Kingsley, David Payne: Optical projector. Delta America, David W Heid, Skjerven Morrill MacPherson Franklin & Friel, May 12, 1998: US05749641 (13 worldwide citation)

An optical projector is described that orients its optics engine preferably vertically within an enclosure that is higher than it is wide or deep. The invented optics engine uses a prismatic cube for color separation or beam splitting, with the prismatic elements within the cube being secured within ...


2
Herschel Burstyn: Pentaprism combiner/splitter. Delta America, David W Heid, Skjerven Morrill MacPherson Franklin & Friel, July 7, 1998: US05777796 (6 worldwide citation)

An optical engine for combining or splitting color light beams, compatible with modern high-speed projection systems, is described. The invention utilizes a unique pentaprism core element, partially bounded by five faces, two each on either side of a plane of bilateral symmetry and one opposite, bis ...


3
Steve Brice, Gary Kingsley, David Payne: Optical projector. Delta America, Skjerven Morrill MacPherson Franklin & Friel, October 6, 1998: US05816675 (5 worldwide citation)

An optical projector is described that orients its optics engine preferably vertically within an enclosure that is higher than it is wide or deep. The invented optics engine uses a prismatic cube for color separation or beam splitting, with the prismatic elements within the cube being secured within ...


4
Kenneth E Salsman, Amjad I Malik, Gary B Kingsley: Optical engines for tricolor projectors having co-planar like optical elements. Delta America, David W Heid, Skjerven Morrill MacPherson Franklin & Friel, May 5, 1998: US05748379 (3 worldwide citation)

The invented optical engines are characterized as including generally parallel planar glass plate-mounted or coated dichroic and turning mirror and light valve elements. An important topological feature of the invented optical engines is the fact that like optical elements are positioned and oriente ...


5
Amjad I Malik: Optical engine for tricolor projectors. Delta America, David W Heid, Skjerven Morrill MacPherson Franklin & Friel, June 2, 1998: US05760964 (2 worldwide citation)

Described is an improved optical engine including dichroic mirror elements that have opposing substantially parallel planar surfaces, with the mirror elements positioned and oriented selectively and simultaneously to split a first light beam incident upon one of the opposing surfaces and to recombin ...


6
Kenneth E Salsman: V-splitter for optical engine. Delta America, David W Held, Skjerven Morrill MacPherson Franklin & Friel, April 11, 2000: US06049403 (1 worldwide citation)

An optical engine in which full-spectrum light is split into its three primary beam components of red, blue and green, which components are then modulated by reflective or transmissive light valve structure and ultimately recombined for projection of a full color image, which engine includes a sourc ...


7
Amjad I Malik: Projection illumination system for tricolor projectors. Delta America, David W Heid, Skjerven Morrill MacPherson Franklin & Friel, July 13, 1999: US05921665

A projection illumination system which includes a source light with a projection axis passing generally centrally through this light, and dual-side light-gathering structure, including a reflector and a TIR lens structure generally embracing the source light on opposite sides thereof and along the p ...


8
Brice Stephen E, Kingsley Gary B, Payne David, Salsman Kenneth E: Optical projector. Delta America, May 13, 1998: EP0840905-A1

An optical projector is described that orients its optics engine preferably vertically within an enclosure that is higher than it is wide or deep. The invented optics engine uses a prismatic cube for color separation or beam splitting, with the prismatic elements within the cube being secured within ...


9
Malik Amjad I: Improved projection illumination system for tricolor projectors. Delta America, HEID David W, June 18, 1998: WO/1998/026211

A projection illumination system which includes a source light (14) with a projection axis (17) passing generally centrally through this light (14), and a dual-side light-gathering structure, including a reflector (16) and a TiR lens structure (12) generally embracing the source light (14) on opposi ...


10
Malik Amjad I: Improved optical engine for tricolor projectors. Delta America, HEID David W, February 26, 1998: WO/1998/008129

Described is an improved optical engine including dichroic mirror elements that have opposing substantially parallel planar surfaces, with the mirror elements positioned and oriented selectively and simultaneously to split a first light beam incident upon one of the opposing surfaces and to recombin ...