Transmissive active grating device
AssigneeSamsung Electronics Co., Ltd.
InventorsYong-kweun Moon, Jong-hwa Won
Life of this patent
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Abstract
Provided is a transmissive active grating device that transmits light or diffracts light according to an applied voltage. The transmissive active grating device includes: an electro optical material layer which transmits light; a first electrode formed on a bottom surface of the electro optical material layer; and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer in parallel with each other.
Claims13
A transmissive active grating device comprising:
- an electro optical material layer which transmits light;
- a first electrode formed on a bottom surface of the electro optical material layer;
- and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer,
- wherein the plurality of second electrodes are arranged in parallel with each other,
- wherein the light is incident onto and exits through side surfaces of the electro optical material layer on which the first and second electrodes are not formed, and
- wherein the transmissive active grating device transmits or diffracts the incident light according to a voltage applied to the first and second electrodes.
A transmissive active grating device comprising:
- an electro optical material layer which transmits light;
- a first electrode formed on a bottom surface of the electro optical material layer;
- and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer,
- wherein the plurality of second electrodes are arranged in parallel with each other, and
- wherein a predetermined number of second electrodes that are adjacent to each other form an array set, and a voltage is applied independently to each array set.
A spatial optical modulator that modulates incident light according to an input signal, the spatial optical modulator comprising:
- a transmissive active grating device comprising an electro optical material layer which transmits light;
- a first electrode formed on a bottom surface of the electro optical material layer;
- and an array of a plurality of second electrodes arranged on a top surface of the electro optical material layer, wherein the plurality of second electrodes are arranged in parallel with each other;
- and
- a shutter that blocks a 0th order diffracted light and transmits ±1st or higher order diffracted light of the light transmitted through the transmissive active grating device, or transmits the 0th order diffracted light and shields the ±1st or higher order diffracted light.
Dependencies are inferred from the claim text.