Optical sensor device using a dielectric transparent spherical-s

Details Optical sensor device using a dielectric transparent spherical-s Optical sensor device using a dielectric transparent spherical-s

1990-07-05

1992-04-07

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25022731, H01J 516

Patent

active

051030888

ABSTRACT:
An optical sensor device for recognizing optical irradiation and detecting its direction is constructed as a spherical-shell section from dielectric, optically transparent material. The irradiation penetrating into the spherical-shell section is reflected back and forth between the exterior and the interior surface or between a mirror and a thin shell via an air gap or vacuum gap, and is thus deflected to the shell edge. Since signals of different intensities are received at the irradiation detector at the beam edge according to the direction of incidence, the direction of incidence of the irradiation can be determined from the relationship of the signals.

REFERENCES:
patent: 3023664 (1962-03-01), Coleman et al.
patent: 4140544 (1979-02-01), Sill
patent: 4149902 (1979-04-01), Mauer et al.
patent: 4150285 (1979-04-01), Brienza et al.
patent: 4855588 (1989-08-01), Holmes

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