High resolution optical device with rigid fiber optic bundle

Details High resolution optical device with rigid fiber optic bundle High resolution optical device with rigid fiber optic bundle

1992-03-31

1993-05-11

Lee, John D.

Optical waveguides

Optical fiber bundle

Imaging

385118, 128 6, G02B 606

Patent

active

052108147

ABSTRACT:
Improved image guides for use in endoscopes, borescopes and analogous optical viewing scopes and a method for the manufacture of such image guides. An image guide is manufactured by drawing a three-glass fiber to a minimal diameter. Plural fibers are then gathered in a bundle and heated to fuse an outer fusible cladding on adjacent fibers. The bundle then can be cut to length and the ends are polished to produce an image guide. The resulting image guide has a spatial resolution that approximates the spatial resolution from conventional optics, is rugged and simpler to manufacture than other image guides.

REFERENCES:
patent: 4036218 (1977-07-01), Yamashita et al.
patent: 4397524 (1983-08-01), Yoshimura et al.
patent: 4762391 (1988-08-01), Margolin
patent: 4776668 (1988-10-01), Fujimoto
patent: 4896941 (1990-01-01), Hayashi et al.
patent: 4945894 (1990-08-01), Kawashima
patent: 4961738 (1990-10-01), Mackin
patent: 4993817 (1991-02-01), Hoogland

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