Systems and methods for high-contrast spatial light modulation

摘要

Embodiments of the present disclosure are directed to optical instruments and methods for enhancing high-contrast spatial light modulation with cascaded spatial light modulators where a first spatial light modulator displays a first spatial pattern that subsequent cascaded one or more spatial light modulators would calibrate and align with the first spatial pattern, thereby increasing the device contrast ratio of the output pattern displayed by the cascaded spatial light modulators. A relay optics is positioned somewhere between two spatial light modulators for imaging a spatial pattern from one spatial light modulator to another spatial light modulator. In addition, a light source generating an illumination to the first spatial light modulator. A projection lens receives the output pattern from an output of the cascaded spatial light modulators and imaged the output pattern to a required distance at a required magnification by a projection lens.