Device for determining the direction of incident optical radiati

Details Device for determining the direction of incident optical radiati Device for determining the direction of incident optical radiati

1983-12-28

1986-11-25

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250226, 356141, 356152, G01B 1126

Patent

active

046251081

ABSTRACT:
In a sensor head (1), hemispherical in form, a plurality of optical fibers (4) is uniformly distributed over the convexly arched surface area (3), and mounted therein. The other ends of the optical fibers (4) are gathered into a bundle (6) whose end face opposes a detector matrix (8) comprising a plurality of detectors. By a subsequently arranged evaluating circuit, and by assigning the detectors to the individual optical fibers (4), there is determined the direction and, by summing up the individual charges of the detectors, there is also recognized the intensity of the incident radiation.
Some additional bundles (15) of optical fibers (16) are disposed by being distributed among the optical fibers (4). From each such bundle (15), an equal number of optical fibers (16) is led to each of several detectors (17). These detectors (17) are provided with individual filters (18, 19, 20) or a common filter (23) having certain wavelength responsive regions. From a signal detected by one of the detectors (17), a subsequently following evaluating circuit contemporaneously recognizes the wavelength of the source of radiation.

REFERENCES:
patent: 3953131 (1976-04-01), Britz
patent: 4127773 (1978-11-01), West

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