Title: Fiber-optical structure of high apparent power of resolution

Abstract: A light-conducting fiber, or a bundle of such fibers, is provided with a ht-absorbing shield extending beyond an end face of the fiber or bundle proximal to a light-reflecting object. The shield forms a light-guiding channel, of a length substantially exceeding its width, which limits the effective aperture angle of the fiber or bundle to considerably less than its inherent value on the order of 60.degree..

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Inventors: Roman, Paul (Paris, FR)

Application Number: 437884
Filing Date: 1974-01-30
Publication_date: 1976-03-09
Assignee: Thomson-CSF Visualisation et Traitement des Informations (T-VT) (Paris, FR)
Primary Class(es): 385/115 250/227.28
Other Classes:
US Patent Ref:

3024079	Mar, 1962	Salvatori et al.	350/96.
3175481	Mar, 1965	Lahr	350/96.
3278754	Oct, 1966	Wallace	350/96.
3430057	Feb, 1969	Genahr	350/96.
3461304	Aug, 1969	Genahr et al.	350/96.
3466928	Sep, 1969	Kind	350/96.
3504984	Apr, 1970	Bush	350/96.
3560084	Feb, 1971	Limberger	350/96.
3666949	May, 1972	DeFalco et al.	350/96.
3711723	Jan, 1973	McMurtry	350/96.

Other Refs:
Primary Examiner: Rubin, David H.
Assistant Examiner:
Attorney: Ross; Karl F., Dubno; Herbert