Light modulation device
AssigneeSeeReal Technolgies S.A.
InventorNorbert LEISTER
Life of this patent
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Abstract
The invention relates to a light modulation device for a complex-valued modulation of linearly polarized incident light, comprising a first light modulator, a subsequently arranged second light modulator and at least one polarizer, where the first light modulator and the second light modulator are configured as phase modulators, where a modulation axis of the first light modulator is aligned at an angle to the modulation axis of the second light modulator, and where the polarization direction of the light incident on the first light modulator and the polarization direction of the polarizer are respectively aligned at predetermined non-90° angles with respect to the modulation axis of the first light modulator and the modulation axis of the second light modulator.
Claims14
A light modulation device for a complex-valued modulation of linearly polarized incident light, comprising a first light modulator, a subsequently arranged second light modulator and at least one polarizer, where the first light modulator and the second light modulator are configured as phase modulators, where a modulation axis of the first light modulator is aligned at an angle to the modulation axis of the second light modulator, and where the polarization direction of the light incident on the first light modulator and the polarization direction of the polarizer are respectively aligned at predetermined non-90° angles with respect to the modulation axis of the first light modulator and the modulation axis of the second light modulator.
A method for the complex-valued modulation of linearly polarized light comprising a first light modulator, a subsequently arranged second light modulator and at least one polarizer, where a light component, oscillating in the direction of a modulation axis of the first light modulator, of the light is adjustably retarded in its phase by the first light modulator, where a light component, oscillating in the direction of the modulation axis of the second light modulator, of the light is adjustably retarded in its phase by the second light modulator, where the modulation axis of the first light modulator is aligned transversely, in particular perpendicularly, with respect to the modulation axis of the second light modulator, and where the light emerging from the second light modulator is linearly polarized by the polarizer aligned at a non-90° angle with respect to the modulation axes.
Dependencies are inferred from the claim text.