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Phase modulator, control method for phase modulator, and fringe projector apparatus
Phase modulator, control method for phase modulator, and fringe projector apparatus
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机译:相位调制器,相位调制器的控制方法和边缘投影仪装置
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摘要
A fringe projector apparatus includes: a phase modulator having a first waveguide, a second waveguide, and a plurality of heaters including a first heater and a second heater, wherein the first and second waveguides and the plurality of heaters are provided on a single substrate, and wherein the first heater heats the first waveguide and the second heater heats a position away from the first waveguide; a light source that generates a light beam to be input to the first waveguide and the second waveguide; and a controller that controls a phase difference between the first waveguide and the second waveguide by changing an electric power consumption of the first heater under a condition that a total electric power consumption of the plurality of heaters is constant.
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