Optical waveguides – Optical fiber bundle – Imaging
Patent
1990-12-20
1992-08-04
Lee, John D.
Optical waveguides
Optical fiber bundle
Imaging
359630, 385147, 434 44, G02B 606
Patent
active
051366754
ABSTRACT:
A slewable projection system of the type having a relatively high-resolution area-of-interest (AOI) scenic portion inset into and blended with a relatively low-resolution field-of-view (FOV) scenic portion of greater areal extent than the high-resolution portion, includes: at least one optical element for providing the low-resolution background image portion; at least one other optical element for providing the high-resolution AOI image portion; an optical combiner receiving the low-resolution and high-resolution image portions; optics for projecting the combined image onto a viewing area; and at least one fiber-optic cable having a multiplicity of fibers for interconnecting the combining element and at least one of the two image optics portions and the projecting optics. A fiber-optic element can mechanically decouple the combining and projecting elements, so that high projection slew rates and accelerations can be realized, while also eliminating hard optics associated with image de-rotation and/or focusing. Another fiber-optic element can provide moveable area-of-interest blending at any selected location over the entire area of the background scene, without movement of a projector or other high-pass subassembly. Use of yet another fiber-optic element can facilitate dynamic image merging.
REFERENCES:
patent: 4439157 (1984-03-01), Breglia et al.
patent: 4439755 (1984-03-01), LaRussa
patent: 4634384 (1987-01-01), Neves et al.
patent: 4709985 (1987-12-01), Takeuchi
patent: 4714428 (1987-12-01), Bunker et al.
patent: 4969707 (1990-11-01), Hopkins
patent: 4983015 (1991-01-01), Bourguignat et al.
General Electric Company
Krauss Geoffrey H.
Lee John D.
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