| 摘要 |
<p>PURPOSE:To eliminate the need for a lecturer to always stand by the overhead projector 10HP by displaying image information and a cursor on a transmission type display device and projecting them at prescribed positions by using a light emission source and an optical system. CONSTITUTION:A control part 24 while transferring image information 26 from a memory card 25 to a display image information storage area 23 reads it out as image display 21 to be displayed and sends the information to a synthesizing device 17. At an operation part which is freely detachable from an OHP main body, various keys such as an indication key for switching the image information stored on the memory card 25 in picture units and cursor keys for moving the cursor and a power switch for on-off control over the light emission source 13 are arranged and the operation information of the operation part is received by the reception part of a controller 28 by radio to control the switching of pictures, the movement of the cursor, etc., under the control of a control part 24. Consequently, a position in a picture is indicated remotely by using the cursor, and the lecturer need not stand by the device at all times.</p> |
