Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Patent
1993-11-09
1996-11-26
Epps, Georgia Y.
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
G02B 2746
Patent
active
055791611
ABSTRACT:
An image display apparatus comprises an image display unit capable of producing and displaying not an image itself but a Fourier-transform image of the image, and a light transmission unit for focusing the Fourier-transform image produced and displayed on the image display unit on a pupil face of an observer's eye and producing an original image on the retina of the eye. The light transmission unit includes a lens and an eye lens such that an image-side focal position of the lens coincides with an object-side focal position of the eye lens. A mask is situated at the object-side focal position of the eye lens to determine the range and shape of a visual field. The image display unit is situated at an image-side focal position of the lens, and the pupil face of the observer's eye is alinged at an image-side focal position of the eye lens.
REFERENCES:
patent: 4347508 (1982-08-01), Spooner
patent: 4772101 (1988-09-01), Liu
patent: 5079555 (1992-01-01), Turpin
patent: 5106179 (1992-04-01), Kamaya
patent: 5426521 (1995-06-01), Chen et al.
F. A. Jenkins and H. E. White, Fundamentals Of Optics, 4th ed. McGraw-Hill, 1981, pp. 259-265.
Patent Abstracts Of Japan, vol. 15, No. 309 (P-1235) Aug. 7, 1991 & JP-A-03 110 592 (Casio) May 10, 1991.
Patent Abstracts Of Japan, vol. 14, No. 369 (P-1090) Aug. 9, 1990 & JP-A-02 136 818 (Sony) May 25, 1990.
SPIE Display System Optics, vol. 778, 1987, pp. 70-78, M. Shenker, "Optical Design Criteria For Binocular Helmet-Mounted Displays".
Epps Georgia Y.
Olympus Optical Co,. Ltd.
Robbins Thomas
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