| 摘要 |
<p>A television camera tube is provided with a background illumination such that a signal derived from the target is homogeneous across the entire target in the case of an homogeneous target illumination. To this end, the camera tube is provided with a light diffuser which is accommodated in a space between the anode sleeve and an auxiliary cylinder which coaxially projects into the anode sleeve and which is constructed and marked, on the side facing the target, such that. parts of the target are half-shade areas of the light diffuser.</p> |
