PATTERN PROJECTION APPARATUS

摘要

PURPOSE: A pattern projection apparatus is provided to reduce a manufacturing cost. CONSTITUTION: The pattern projection apparatus comprises: a lamp(3); a reflection body(4) arranged on an upper portion of the lamp, and for reflecting the light of the lamp into a vertical lower portion; a modulator(5) arranged on a lower portion of the lamp, and for displaying an electrode pattern drawing received; a computer(6) for transmitting an electrode pattern to the modulator; and a lens(7) arranged on a lower portion of the modulator, and for enlarging or reducing an electrode pattern image projected by the lamp light. The pattern projection apparatus further comprises a filter(8) for deleting a noise of the electrode pattern image.