Apparatus for enhancing the long wavelength response of photodet

Details Apparatus for enhancing the long wavelength response of photodet Apparatus for enhancing the long wavelength response of photodet

1974-12-02

1976-07-27

Smith, Alfred E.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313388, H01J 3150

Patent

active

039719324

ABSTRACT:
A photodetection device includes a photosensor usefully responsive to electromagnetic energy of a first band of wavelengths. An energy conversion unit is optically coupled to the photosensor for receiving incident electromagnetic energy of different, longer wavelength and emitting, in response, electromagnetic energy within the band of first wavelengths.

REFERENCES:
patent: 3213308 (1965-10-01), Feibelman
patent: 3569763 (1971-03-01), Kiuchi et al.
patent: 3663821 (1972-05-01), Finkle
patent: 3800194 (1974-03-01), Maruyama et al.
patent: 3870921 (1975-03-01), Burns

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