Display system using conjugate optics and accommodation features and method of displaying and viewing an image
Patent 6008945 Issued on December 28, 1999. Estimated Expiration Date: 
September 19, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 19, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 933647 filed on 09/19/1997US Classes:359/630, Superimposing visual information on observer`s field of view (e.g., head-up arrangement, etc.)359/633With additional reflector (e.g., serial reflections, etc.)ExaminersPrimary: Epps, GeorgiaAssistant: Mack, Ricky Attorney, Agent or FirmForeign Patent References
International ClassG02B 027/14AbstractA display system including a retro-reflector, and optical means including a projection lens and an accommodation feature for directing light from an image source to the retro-reflector, light reflected by the retro-reflector being provided for viewing, said optical means and retro-reflector being cooperative to establish a conjugate optics path including the accommodation feature along which the light is directed to the eye or eyes of a viewer for viewing of an image, the accommodation feature includes a conjugation lens means and it and the retro-reflector are cooperatively positioned such that as light passes back through the conjugation lens means along the same path it would have followed had the retro-reflector been placed at the image plane of the projection lens had the conjugation lens means not been in position. A servo system for moving the projection lens and the retro-reflector according to a transfer function also may be included. | |
