| 摘要 |
PURPOSE: A multichannel AOM(Acousto-Optical Modulator) is provided to simultaneously modulate plural optical beams having different wavelengths to emit the beams at the same diffractive angle, and to simplify an optical system configuration to radiate the optical beams, thereby contributing to miniaturization of a large-screen display device. CONSTITUTION: A multichannel AOM includes an acoustic-optical medium element(21) and a multichannel electric-acoustic transducer(22) which consists of an acousto-medium element(23) for applying an acoustic wave to the acousto-optical medium element(21), three electrodes(24,25,26) separately disposed by channel at certain intervals on an upper side of the acousto-medium element(23), and an adhesive layer(23a) which is made of a conductive material and is disposed in a part where the acousto-medium element(23) is adhered to the acousto-optical medium element(21).
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