Optical device having a rotatable birefringent crystal

Details Optical device having a rotatable birefringent crystal Optical device having a rotatable birefringent crystal

2006-08-08

2006-08-08

Toatley, Gregory (Department: 2877)

Optics: measuring and testing

By light interference

Having polarization

C385S016000, C385S025000, C359S490020

Reexamination Certificate

active

07088453

ABSTRACT:
An optical device has a rotatable birefringent crystal. The crystal is rotatable around a first axis (4; 42) and has a crystallographic-optical axis (6; 44) in a plane that is perpendicular to the first axis. In addition, the crystal is rotated around the first axis in order to control a displacement (Δx) of a light beam in the plane when the light beam is polarized within the plane and directed onto the crystal.

REFERENCES:
patent: 3658405 (1972-04-01), Pluta
patent: 6222632 (2001-04-01), Bakin

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