Arthur N Carson

US Patent:

42776848, Jul 7, 1981

Filed:

Aug 18, 1977

Appl. No.:

5/825590

Inventors:

Arthur N. Carson - West Hartford CT

Assignee:

U.S. Philips Corporation - New York NY

International Classification:

G01N 2100

US Classification:

250445T

Abstract:

An X-ray collimator for use in computerized axial tomography apparatus includes a plurality of substantially parallel X-ray absorbing laminae disposed in the plane of a wedge-shaped X-ray beam. The length and position of each lamina with respect to a divergent X-ray source is chosen to maximize the ratio of X-ray flux impinging upon a detector array to flux falling within the collimator's penumbra, outside the detector array. A single set of moveable jaws may be disposed at the collimator exit for adjustment of the beam thickness.

US Patent:

39407489, Feb 24, 1976

Filed:

Nov 14, 1969

Appl. No.:

4/871392

Inventors:

Arthur N. Carson - Bristol CT

International Classification:

G11C 1304

US Classification:

340173CC

Abstract:

An optical information storage and retrieved system is presented wherein intersecting beams of coherent light at least one of which is information bearing are used to change the state of color centers in a crystal to effect information storage. Information is retrieved or read out by determining the state of color centers in the crystal.