| 摘要 |
<p>The lamp has a discharge lamp (12) arranged in a lamp body (10) and illuminating an operation field by a reflector (14). A mechanically adjustable diaphragm unit (20) is provided for changing illuminance in the lamp body, and has lamellas pivotable around a vertical axis. The lamellas have an opaque material with two rows of slots of rectangular shape, and an opaque closure element is provided at the lamellas for closing the slots. The closure element has openings corresponding to the slots, and is actuated by a drive.</p> |
