1
Ronald G Hegg, Mao Jin Chern: Automotive instrument 3-D virtual image display. Hughes Aircraft Company, Leonard A Alkov, W K Denson Low, August 8, 1995: US05440428 (285 worldwide citation)

A compact, inexpensive and mass-producible optical display system for an automobile creates a dramatic and highly stylistic, sharp, high contrast and pleasing, multi-color or monochromatic 3-D magnified image of an instrument cluster, at least a portion of the 3-D image being located at a viewing di ...


2
Ronald G Hegg, Ronald T Smith, Mao Jin Chern, John J Ferrer: Automotive instrument virtual image display. Hughes Aircraft Company, L A Alkov, W K Denson Low, January 11, 1994: US05278532 (89 worldwide citation)

A compact, inexpensive and mass-producible optical display system for an automobile creates a highly visible and sharp, high contrast and pleasing, multi-color magnified virtual image of a primary instrument cluster at a viewing distance which is greater than the actual optical distance between the ...


3
Ronald G Hegg, Mao Jin Chern, Anson Au: Virtual image display having a high efficiency grid beamsplitter. Hughes Aircraft Company, Leonard A Alkov, W K Denson Low, January 17, 1995: US05383053 (80 worldwide citation)

A focusable virtual image display system employing a focusable image source such as a cathode ray tube and imaging optics to provide a virtual image. The virtual image is viewable by a user and its effective range may be changed without changing the apparent field of view or resolution. By placing t ...


4
Chungte W Chen, Ronald G Hegg: Ultra-compact, wide field of view virtual image display optical system. Hughes Aircraft Company, Leonard A Alkov, W K Denson Low, October 18, 1994: US05357372 (51 worldwide citation)

A virtual image display (VID) optical system that is very compact and has a wide field of view. The present optical system has good image quality, has simple optics, is very compact, provides wide field coverage, and has very large field overlaying. The system comprises a combiner and a catadioptric ...


5
Ronald G Hegg: Modular helmet-mounted display. Raytheon Company, Oppenheimer Wolff & Donnelly, November 10, 1998: US05835277 (44 worldwide citation)

An aviator's helmet-mounted display includes a visor/combiner module (14) which is configured for use with an essentially standard aviator's flight helmet (12). The helmet-mounted display also includes a conformal image source and relay optics (ISRO) module (30) which is removably attachable to the ...


6
Ronald T Smith, Mao Jin Chern, Ronald G Hegg: Automotive head-up display with high brightness in daytime and high contrast in nighttime. Hughes Aircraft Company, Leonard A Alkov, Wanda K Denson Low, October 1, 1991: US05053755 (42 worldwide citation)

A head-up display having an image source for producing imaging illumination, an optical combiner for partially reflecting the imaging illumination to produce a virtual image of the image source that is viewable by the operator of the vehicle, and a polarizer which can be controllably interposed betw ...


7
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 ...


8
Ronald G Hegg: High-contrast fiber optic diffusion faceplate with radiused fibers. Hughes Aircraft Company, Leonard A Alkov, Wanda K Denson Low, February 27, 1990: US04904049 (40 worldwide citation)

A radiused fiber optic faceplate is disclosed, particularly suited for use in optical apparatus comprising a high gain diffusion screen or a direct view CRT. The respective optical axis of the fibers are each substantially oriented so that the refracted information-bearing light passed through each ...


9
Ronald G Hegg, Mao Jin Chern: Two-page automotive virtual image display. Hughes Aircraft Company, Leonard A Alkov, Wanda K Denson Low, June 9, 1992: US05121099 (36 worldwide citation)

A virtual image display for vehicles that includes a first image source for providing first imaging illumination, a second image source for providing second imaging illumination, a combiner responsive to the first and second imaging illumination for producing a combiner imaging illumination output, ...


10
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 ...