David T Wilson, John E Wreede, John E Gunther, James A Arns: Holographic parking assistance device. Hughes Aircraft Company, Leonard A Alkov, W K Denson Low, April 11, 1995: US05406395 (313 worldwide citation)

An optical parking alignment system that includes at least one projector located on a vehicle for projecting a respective image forwardly of the vehicle, whereby alignment of the vehicle is indicated when each respective image is in focus on a screen disposed in front of the vehicle. The projector c ...

Douglas P Hansen, John E Gunther: Dual mode reflective/transmissive liquid crystal display apparatus. Moxtek, Thorpe North & Western, November 16, 1999: US05986730 (172 worldwide citation)

A dual mode liquid crystal display device has a liquid crystal material disposed between a first polarizer and a second reflective polarizer. A light source is disposed behind the second polarizer and an absorbing means is disposed behind the second polarizer in front of the light source. The reflec ...

William C Hoffman, John E Gunther, William R Lichty: Liquid crystal display system using fiber optic faceplates. Joseph E Szabo, W H MacAllister, September 14, 1982: US04349817 (42 worldwide citation)

In a liquid crystal image display system, a fiber optic faceplate which transmits light only through a well defined acceptance cone is optically coupled to the liquid crystal display surface of a reflective dynamic scattering mode liquid crystal display device.

William B King, Chungte W Chen, Ronald G Hegg, John E Gunther, Richard W Nichols: Low-observability, wide-field-of-view, situation awareness viewing device. Raytheon Company, Colin M Raufer, Glenn H Lenzen Jr, February 17, 2004: US06693749 (42 worldwide citation)

A situation awareness viewing device, typically in the form of a head-mounted display device, includes a polarizing beam splitter made of a cube of a material transparent to light and having an index of refraction greater than 1, and a wire grid polarizer lying within the cube on a cube-diagonal pla ...

John E Gunther, Ronald T Smith: Diffraction optics diffusing screen. Hughes Aircraft Company, A W Karambelas, May 6, 1986: US04586781 (32 worldwide citation)

Optical apparatus (48) includes the holographic optical element (16) which diffracts the incoming ray (15) in a diffuse cone toward a viewing pupil and at an angle parallel to the axis of fiber optic faceplate (48) so the central ray (17) of the diffused cone passes through optical fiber (54) toward ...

Ronald G Hegg, Chungte W Chen, John E Gunther, Dennis D Hansen: Wide FOV simulator heads-up display with selective holographic reflector combined. Raytheon Company, Price Gess & Ubell, May 25, 1999: US05907416 (30 worldwide citation)

A wide field-of-view simulator heads-up display provides images to a user along an optical axis. A HUD CRT provides images of a predetermined design wavelength, while rear projection screen CRTs provide out-of-window scenery that does not contain the predetermined design wavelength. A curved hologra ...

John E Gunther, William R Lichty, William C Hoffman: Fiber optic light traps for electro-optical display devices. Hughes Aircraft Company, Gerald B Rosenberg, Joseph E Szabo, William H MacAllister, August 17, 1982: US04344668 (26 worldwide citation)

In an electro-optical display device, a fiber optic faceplate which transmits light only through a well-defined solid angle, is optically coupled to an electro-optical display panel having a specularly reflecting surface. The display panel can be either an active device, such as laser diodes, or pas ...

Ronald T Smith, Andrew J Daiber, John E Gunther, James E Scott, Michael J Virgadamo, Kevin Yu: Universal stand-alone holographic center high mounted stoplight. Hughes Aircraft Company, Leonard A Alkov, Wanda K Denson Low, March 31, 1992: US05101193 (24 worldwide citation)

A holographic stoplight for a vehicle including a stoplight hologram, a source of playback illumination, and a transparent prism for supporting the stoplight hologram and for guiding the playback illumination to the stoplight hologram. The prism with the stoplight hologram is mounted in front of the ...

Mao Jin Chern, John E Gunther, Ronald T Smith: Directional diffusing screen with suppressed zero-order light. Hughes Aircraft Company, A W Karambelas, May 6, 1986: US04586780 (19 worldwide citation)

Optical assembly (34) has a transmission holographic optical element (46) which refracts the incoming ray (38) at an angle through the angularly oriented fiber (56) in fiber optic faceplate (48). Holographic optical element (50) refracts the ray (66) to become ray (44) toward a viewing pupil. The ze ...

Jan Grinberg, John E Gunther: Holographic color filters for display applications, and operating method. Hughes Electronics Corporation, V D Duraiswamy, W K Denson Low, June 9, 1998: US05764389 (17 worldwide citation)

A holographic optical filter separates broadband electromagnetic radiation into spectral components corresponding to different spectral regions and then images this radiation onto pixels of a display. It includes two layers of holographic optical elements that are sensitive to each of these spectral ...