Optics: image projectors – Composite projected image – Multicolor picture
Patent
1989-08-14
1990-10-23
Cuchlinski, Jr., William A.
Optics: image projectors
Composite projected image
Multicolor picture
353122, 350311, 350437, G02B 2608
Patent
active
049647180
ABSTRACT:
An optical projection system is provided wherein a light valve supplies an aperture consisting of spatially separate colors for projection by a plurality of projection lenses to a projection plane. A color correction lens is placed at a selective pupil of the projection system wherein microscopic amounts of selective power are applied to at least one of the spatially seperated colors of the image at the selected pupil to cause a shift of the wavelength to bring all the wavelengths of the spatially separate colors to a common focus.
REFERENCES:
patent: 2717918 (1955-09-01), Anderson
patent: 3331277 (1967-07-01), Wehde
patent: 3843235 (1974-10-01), Mino et al.
patent: 4327972 (1982-05-01), Brousting
patent: 4454535 (1984-06-01), Machida
patent: 4698687 (1987-10-01), Levin
patent: 4755032 (1988-07-01), True
patent: 4779024 (1988-10-01), Roussin
patent: 4814866 (1989-03-01), Dillard et al.
Buchroeder Richard A.
Van Hoogstrate John A.
Courson Timothy H.
Cuchlinski Jr. William A.
Dowling William C.
Finch George W.
Hudson, Jr. Benjamin
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