Static deflector device for an infrared beam

Details Static deflector device for an infrared beam Static deflector device for an infrared beam

1984-02-27

1987-01-27

Corbin, John K.

35016224, 350348, G02F 1137, G02B 518

Patent

active

046390910

ABSTRACT:
The diffraction grating principle is used to deflect an infrared beam in a series of discrete predetermined directions. A periodic control voltage having a staircase waveform with N steps is applied across a liquid crystal layer to create local variations of refractive index therein, thereby setting up an infrared diffraction grating of adjustable pitch.

REFERENCES:
patent: 3758195 (1973-09-01), Hedman et al.
patent: 3843231 (1974-10-01), Borel et al.
patent: 3904114 (1975-09-01), Haas et al.
patent: 4036553 (1977-07-01), Borel et al.
patent: 4065334 (1978-01-01), Fray et al.
Yao et al., "Chirp Grading Lens for Guided Wave Optics" Appl. Phys. Lett: 33(7) Oct. 1, 1978 pp. 635-637.

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