Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Patent
1996-07-03
1997-12-02
Nelms, David C.
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
359633, 359636, 359638, 359727, 359731, 359732, 359834, 359858, 359861, G02B 2714, G02B 1700, G02B 504
Patent
active
056942508
ABSTRACT:
An optical guide (10, 40, 50, 60) for horizontally aligning two vertically stacked images generated by one or two SLMs. The optical guide has a channel separator (10a) that directs both images along two different paths. A pair of aligning reflectors (10b and 10c) on each path vertically shift the images with respect to each other so that at least part of the images on the first path are aligned side-by-side with at least part of the images on the second path. The channel separator (10a) then redirects the images to the image plane 15. Along both paths, at least two of the reflecting surfaces of channel separator (10a) or aligning reflectors (10b and 10c) are optically powered so as to change the width or height of the images.
REFERENCES:
patent: 4861148 (1989-08-01), Sato et al.
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patent: 5105299 (1992-04-01), Anderson et al.
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patent: 5311349 (1994-05-01), Anderson et al.
patent: 5402269 (1995-03-01), Oono et al.
patent: 5581413 (1996-12-01), Anderson
"Optics: Second Edition," Eugene Hecht, Addison-Wesley Publishing Company, Reading, Massachusetts, pp. 184-186, 1987.
Donaldson Richard L.
Kesterson James C.
Lester Evelyn A.
Nelms David C.
Reed Julie L.
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