Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1995-06-06
1997-06-24
Epps, Georgia Y.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359630, 359633, G02B 2714
Patent
active
056422270
ABSTRACT:
The present invention eliminates the relay lens systems found in conventional helmet mounted displays (HMDs) by removing field distortions and aberrations with a contoured fiber optic faceplate placed in close proximity to a liquid crystal display (LCD) or cathode ray tube. The optical system typically consists of a spherical dielectric or holographically made collimator - combiner, a dielectric or holographically made fold mirror, and a contoured fiber optic faceplate. The fold mirror is flat, and the collimator - combiner is made by coating a spherical eye glass blank. The system is configured as a folded and tilted catadioptric projector with the novel feature being the contoured faceplate. There are no dispersive elements in the imaging assembly which means it can be completely polychromatic (full color) without the need for additional color correction optics as found in all refractive color systems. When designed for full color, highest brightness, and see through capability it must be made with two or three narrow spectral and angular sensitive coatings on the fold mirror and on the collimator - combiner. These coatings allow the use of a tilt of the collimator - combiner with respect to the fold mirror which induces a small amount of astigmatism and keystone distortion but at the same time allows image light to pass through the folded optics to the eye with a minimum of loss. The elimination of a corrective refractive lens relay system makes this design polychromatic, less expensive, and lighter in weight, compared to a similar system with an achromatized and corrected refractive lens.
REFERENCES:
patent: D300476 (1989-03-01), Sestak
patent: D301644 (1989-06-01), Sestak
patent: D334557 (1993-04-01), Hunter et al.
patent: D334742 (1993-04-01), Hunter et al.
patent: D337320 (1993-07-01), Hunter et al.
patent: D338514 (1993-08-01), Holmes
patent: 2955156 (1960-10-01), Heilig
patent: 2958258 (1960-11-01), Kelly
patent: 3043910 (1962-07-01), Hicks
patent: 3589795 (1971-06-01), Miyazaki et al.
patent: 3614314 (1971-10-01), Rossire
patent: 3874783 (1975-04-01), Cole
patent: 3915548 (1975-10-01), Opittek et al.
patent: 3923370 (1975-12-01), Mostrom
patent: 3940204 (1976-02-01), Withrington
patent: 3945721 (1976-03-01), Corcoran
patent: 4026641 (1977-05-01), Bosserman et al.
patent: 4028725 (1977-06-01), Lewis
patent: 4042957 (1977-08-01), Ellis
patent: 4048653 (1977-09-01), Spooner
patent: 4257062 (1981-03-01), Meredith
patent: 4269476 (1981-05-01), Gauthier et al.
patent: 4310849 (1982-01-01), Glass
patent: 4322135 (1982-03-01), Freeman
patent: 4348185 (1982-09-01), Breglia et al.
patent: 4361384 (1982-11-01), Bosserman
patent: 4385803 (1983-05-01), Ellis
patent: 4395731 (1983-07-01), Schoolman
patent: 4398799 (1983-08-01), Swift
patent: 4437113 (1984-03-01), Lee et al.
patent: 4439157 (1984-03-01), Breglia et al.
patent: 4446480 (1984-05-01), Breglia et al.
patent: 4465347 (1984-08-01), Task et al.
patent: 4468101 (1984-08-01), Ellis
patent: 4550984 (1985-11-01), Reymond
patent: 4559555 (1985-12-01), Schoolman
patent: 4561723 (1985-12-01), Hamano et al.
patent: 4571628 (1986-02-01), Thornton
patent: 4636866 (1987-01-01), Hattori
patent: 4641931 (1987-02-01), Loy
patent: 4651201 (1987-03-01), Schoolman
patent: 4652870 (1987-03-01), Steward
patent: 4695129 (1987-09-01), Faessen et al.
patent: 4706117 (1987-11-01), Schoolman
patent: 4711512 (1987-12-01), Upatnieks
patent: 4737972 (1988-04-01), Schoolman
patent: 4743200 (1988-05-01), Welch et al.
patent: 4753514 (1988-06-01), Kubik
patent: 4757714 (1988-07-01), Purdy et al.
patent: 4761056 (1988-08-01), Evans et al.
patent: 4763990 (1988-08-01), Wood
patent: 4775217 (1988-10-01), Ellis
patent: 4786966 (1988-11-01), Hanson et al.
patent: 4791300 (1988-12-01), Yin
patent: 4796987 (1989-01-01), Linden
patent: 4797736 (1989-01-01), Kloots et al.
patent: 4799765 (1989-01-01), Ferrer
patent: 4805988 (1989-02-01), Dones
patent: 4806011 (1989-02-01), Bettinger
patent: 4807202 (1989-02-01), Cherri et al.
patent: 4821727 (1989-04-01), Levene
patent: 4826287 (1989-05-01), Cook et al.
patent: 4853764 (1989-08-01), Sutter
patent: 4859030 (1989-08-01), Rotier
patent: 4859031 (1989-08-01), Berman et al.
patent: 4867551 (1989-09-01), Perera
patent: 4869575 (1989-09-01), Kubik
patent: 4871228 (1989-10-01), Roos
patent: 4874214 (1989-10-01), Cheyason et al.
patent: 4874235 (1989-10-01), Webster
patent: 4884137 (1989-11-01), Hanson et al.
patent: 4884219 (1989-11-01), Waldren
patent: 4897715 (1990-01-01), Beamon
patent: 4900133 (1990-02-01), Berman
patent: 4902083 (1990-02-01), Wells
patent: 4902116 (1990-02-01), Ellis
patent: 4902120 (1990-02-01), Weyer
patent: 4904049 (1990-02-01), Hegg
patent: 4930888 (1990-06-01), Freisleben et al.
patent: 4932731 (1990-06-01), Suzuki et al.
patent: 4933755 (1990-06-01), Dahl et al.
patent: 4934773 (1990-06-01), Becker
patent: 4952024 (1990-08-01), Gale
patent: 4961625 (1990-10-01), Wood et al.
patent: 4961626 (1990-10-01), Fournier et al.
patent: 4968123 (1990-11-01), Fournier et al.
patent: 4969714 (1990-11-01), Fournier et al.
patent: 4969724 (1990-11-01), Ellis
patent: 4970589 (1990-11-01), Hanson et al.
patent: 4982278 (1991-01-01), Dahl et al.
patent: 4983014 (1991-01-01), Nattermann
patent: 4984179 (1991-01-01), Waldern
patent: 4993790 (1991-02-01), Vick
patent: 4995165 (1991-02-01), Daniels
patent: 5003300 (1991-03-01), Wells
patent: 5005213 (1991-04-01), Hanson et al.
patent: 5019828 (1991-05-01), Schoolman
patent: 5034809 (1991-07-01), Katoh
patent: 5035473 (1991-07-01), Kuwayama et al.
patent: 5039198 (1991-08-01), VanBeek
patent: 5046827 (1991-09-01), Frost et al.
patent: 5050966 (1991-09-01), Berman
patent: 5053755 (1991-10-01), Smith
patent: 5081542 (1992-01-01), Efron et al.
patent: 5089903 (1992-02-01), Kuwayama et al.
patent: 5091719 (1992-02-01), Beamon
patent: 5123726 (1992-06-01), Webster
patent: 5124821 (1992-06-01), Antier et al.
patent: 5129716 (1992-07-01), Holakovszky et al.
patent: 5130794 (1992-07-01), Ritchey
patent: 5138555 (1992-08-01), Albrecht
patent: 5151722 (1992-09-01), Massof et al.
patent: 5162828 (1992-11-01), Furness et al.
patent: 5162928 (1992-11-01), Taniguchi et al.
patent: 5164848 (1992-11-01), Firth et al.
patent: 5166778 (1992-11-01), Beamon
patent: 5170153 (1992-12-01), Migozzi et al.
patent: 5181013 (1993-01-01), Bagshaw
patent: 5184231 (1993-02-01), Ellis
patent: 5189512 (1993-02-01), Cameron et al.
patent: 5192960 (1993-03-01), Komamura
patent: 5198928 (1993-03-01), Chauvin
patent: 5200844 (1993-04-01), Suvada
patent: 5231379 (1993-07-01), Wood et al.
patent: 5255211 (1993-10-01), Redmond
patent: 5274405 (1993-12-01), Webster
patent: 5276471 (1994-01-01), Yamauchi et al.
patent: 5278680 (1994-01-01), Karasawa et al.
patent: 5281957 (1994-01-01), Schoolman
patent: 5293271 (1994-03-01), Merritt et al.
patent: 5300942 (1994-04-01), Dolgoff
patent: 5303085 (1994-04-01), Rallison
patent: 5305244 (1994-04-01), Newman et al.
patent: 5309169 (1994-05-01), Lippert
patent: 5320538 (1994-06-01), Baum
patent: 5321416 (1994-06-01), Bassett et al.
patent: 5322441 (1994-06-01), Lewis et al.
patent: 5323174 (1994-06-01), Klapman et al.
patent: 5327175 (1994-07-01), Kim
patent: 5331149 (1994-07-01), Spitzer et al.
patent: 5334991 (1994-08-01), Wells et al.
patent: 5335299 (1994-08-01), Atkinson
patent: 5347400 (1994-09-01), Hunter
patent: 5353042 (1994-10-01), Klapman et al.
patent: 5357372 (1994-10-01), Chen et al.
patent: 5383053 (1995-01-01), Hegg et al.
patent: 5392158 (1995-02-01), Tosaki
patent: 5408346 (1995-04-01), Trissel et al.
patent: 5451976 (1995-09-01), Ito
Assenheim et al., "Large-Screen-Projection, Avionic, and Helmet-Mounted Displays", Proceedings, The International Society for Optical Engineering, Feb. 26-28, 1991, vol. 1456, pp. 179-190.
Benton, "Practical Holography VIII", Proceedings, The International Society for Optical Engineering, Feb. 7-9, 1994, vol. 2176, pp. 241-248.
Driscoll et al., Handbook of Optics, McGraw-Hill Book Company, 1978, pp. 13-16.
Fischer, "Fundamentals and Optics for Head Mounted Displays," Photonics West '95, Feb. 4-10, 1995.
Rotier,
Epps Georgia Y.
Mack Ricky
Virtual I/O, Inc.
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