| 摘要 |
PURPOSE:To provide an optical recorder without being affected by cylindrical lens effect and capable of writing with high resolution and at a high speed. CONSTITUTION:A lens 3 converging a light beam from a light source 1 deflected in a prescribed direction by an AO element 2 and focusing the beam on a disk 4 is set, and a control means 5 for controlling the scanning of an ultrasonic frequency is connected to the light source 1 and the AO element 2. Then, by the control means 5, a PROM(programable ROM) 11 is used as a storage means and data stored in the PROM 11 is read by an oscillator 12. The data is converted to an analog signal by a D/A converter 13 and made into a sine wave by an LPF(low-pass filter) 14. Then the sine wave outputted from the LPF 14 is inputted to a driver 15 and the AO element 2 is scanned. |
