SHADOW MASK DOMNING TESTER

摘要

a frame holder (41) for securing a shadow mask-frame assembly, a lamp (60) being a heating source at a lower part of the holder (41), a light filter (50) for controlling distribution of input heat by controlling the passing amount of emitted heat from a lamp, and the filter (50) being btwn the lamp (60) and the holder (41), a measuring apparatus to measure the local amount of doming of shadow mask.