| 摘要 |
PURPOSE:To facilitate an easy assembling work as well as realize a compact and light-weight structure for the TV camera, by holding and fixing the main lens system, the pickup tube, the optical viewfinder each via the single frame. CONSTITUTION:TV camera 1 consists of main lens system 3 comprising L-shaped frame 2, zoom lens 3a, pickup master lans 3b and others plus the pickup tube assembly. And L-shaped bracket 5 is attached as a separate parts across frame 2. With this frame 2 and bracket 5, the frame structure featuring almost a rectangular shape is formed. At the same time, eyepiece part 6 is provided to the optical viewfiner part. Thus frame 2 of nearly an L-shaped cylinder is divided into two parts by the face including lens system 3 and optical axis l1 of pickup tube 4. Then the inserting aperture part of system 3, the channel to be fitted to the aperture part and the optical path which gives the image formation to the beams from lens 3a onto tube 4 are formed at the left half of the divided two parts. While the inserting part of the motor which drives the lens iris mechanism, the relay lens control window and others are provided at the right half part respectively. |
