| 359 / | HD | OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS |
| 601 | ![]() | GLARE OR UNWANTED LIGHT REDUCTION {6} |
| 602 | DF | .~> With mirror (e.g., mirror with glare screen, etc.) {1} |
| 609 | DF | .~> Display window |
| 610 | DF | .~> With blind for nonviewing eye |
| 611 | DF | .~> Barrel end or lens mount shade {1} |
| 613 | DF | .~> Directional or angular discrimination |
| 614 | DF | .~> With absorption means |