| 359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
| 618 | DF | SINGLE CHANNEL SIMULTANEOUSLY TO OR FROM PLURAL CHANNELS (E.G., LIGHT DIVIDING, COMBINING, OR PLURAL IMAGE FORMING, ETC.) {3} |
| 619 | DF | .~ By surface composed of lenticular elements {6} |
| 621 | DF | .~.~ Plural lenticular plates {1} |
| 622 | DF | .~.~.~ Serially disposed along optic axis {1} |
| 623 | | .~.~.~.~ Cylindrical lenslets {1} |
| 624 | DF | .~.~.~.~.~> Having crossed axes |