| 359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
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| 237 | DF | OPTICAL MODULATOR {3} |
| 298 | DF | .~ Light wave directional modulation (e.g., deflection or scanning is representative of the modulating signal) {5} |
| 305 |  | .~.~ Acousto-optic {9} |
| 306 | DF | .~.~.~> Correlation or convolution |
| 307 | DF | .~.~.~> Utilizing optical feedback |
| 308 | DF | .~.~.~> Filter |
| 309 | DF | .~.~.~> Acting on polychromatic light |
| 310 | DF | .~.~.~> Plural cell array |
| 311 | DF | .~.~.~> Plural transducers on single cell |
| 312 | DF | .~.~.~> Single transducer generating composite plural frequency acoustic wave |
| 313 | DF | .~.~.~> Particular cell shape |
| 314 | DF | .~.~.~> Particular cell orientation |