DISPLAY INDICATION DEVICE OF SPATIAL OPTICAL MODULATOR

摘要

PURPOSE: To provide an indication device which is used for a large space light modulator and not restricted by wiring and a sensor. CONSTITUTION: A display system provided with a pointer which is not restricted by wiring and the sensor is provided. The space light modulator 14 for projecting an image on a screen 20 is used for display. While all cells in the modulator 14 are in the same state, a cursor projected on a screen by the pointer is image- formed again in a detector 26 from the screen. The detector 26 converts the image of the cursor into a signal transmitted to a central processing unit. The central processing unit makes a system face a task instructed by the cursor.