Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1993-03-30
1994-09-13
LaRoche, Eugene R.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359407, 359402, 359482, G02B 2302
Patent
active
053473973
ABSTRACT:
An optical device for reorienting an optical image from a first optical pathway to a second optical pathway and the method of manufacturing such an optical device. In a preferred embodiment, a housing is provided that defines at least two optical pathways. Both optical pathways align with a common aperture in the housing. Since both optical pathways are generally cylindrically shaped and the common aperture aligns with both optical pathways, the common aperture is elliptical in shape so as to correspond to the plane of intersection between the two cylindrical pathways. A generally rectangular mirror, that is larger than the elliptical aperture in the housing, is placed over the aperture on the exterior of the housing. As a result, the mirror covers the area of the elliptical aperture and redirects any light passing through the elliptical aperture from one of the optical pathways into the other optical pathway. Since a rectangular mirror is used, and the mirror is assembled externally from the housing, cost and labor savings are produced over that available in the prior art.
REFERENCES:
patent: 3482897 (1969-12-01), Hopp
patent: 4758077 (1988-07-01), Beecher
patent: 4961626 (1990-10-01), Founier, Jr. et al.
patent: 5157553 (1992-10-01), Phillips et al.
Nelson John C.
Pifer, Jr. Thomas H.
Thomas Vincent J.
Vance Gary M.
Hogan Patrick M.
ITT Corporation
LaRoche Eugene R.
Le Vu
Plevy Arthur L.
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