Light controller
AssigneeRohm Co., Ltd.
InventorsYoshikazu Fujimori, Tatsuya Suzuki, Tsuyoshi Fujii, Satoru Tanaka
Life of this patent
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Abstract
To provide a light controller allowing for an enhanced positional precision in assembly of a spatial light modulator and a random phase mask, and to provide a light controller adapted to prevent positional deviations between a spatial light modulator and a random phase mask against impacts or vibrations, allowing for an enhanced operational integrity, a light controller includes a substrate, a light modulation unit disposed on the substrate and configured for modulation of light, and a random phase mask stacked on the light modulation unit on an optical axis of the light modulation unit.
Claims4
A light controller comprising:
- a substrate;
- a light modulation unit disposed on the substrate and configured for modulation of light;
- and
- a random phase mask disposed inside the light modulation unit on an optical axis of the light modulation unit,
- wherein the light modulation unit comprises an array of light modulation cells each having a series circuit comprising a transistor and a capacitor
- wherein the transistor of the light modulation unit comprises a main electrode region electrically connected to a first signal line, another main electrode region, and a control electrode electrically connected to a second signal line different from the first signal line, and the capacitor comprises a first electrode connected at one end thereof to the other main electrode region of the transistor, a second electrode connected to a fixed power supply, and an electro-optic film interposed between the first electrode and the second electrode.
Dependencies are inferred from the claim text.