Photoconductive target for an image pick up tube was fabricated by thermal evaporation. For the good operation of the target it is necessary that the target have high photosensitivity, low lags and high resolution. In the vidicon mode analysis for the...
Photoconductive target for an image pick up tube was fabricated by thermal evaporation. For the good operation of the target it is necessary that the target have high photosensitivity, low lags and high resolution. In the vidicon mode analysis for the target, photosensitivity under 10 lux illumination was about 0.8 except the region of high intensity and the S/N ratio (dynamic range) was about 30㏈. The image lag was 20% at the 3rd field after shutting off light illumination. And the resolution measured with RETMA chart was about 300 TV lines. Considering all characteristics, the target was superior to those of Toshiba 20PE20.