| 摘要 |
<p>PURPOSE:To eliminate a need to manually move a cursor by displaying a target mark over a monitor screen to visually recognize it for the purpose of designating the cursor position on the monitor screen and executing the moving operation of this target mark only with the motion of operator's head. CONSTITUTION:The optical image of a target mark Tm from a target mark display source 5 of a target mark projection part 3 is visually recognized through a half mirror 7 by eyes 9 of an operator 2. The luminance of a target mark display point 10 on a monitor screen 1 visually recognized by the operator 2 is detected by a telescopic luminance detecting part 4. This device is set to a headgear 18 and is used, and the operator 2 moves his head to move the target mark display position 10 on the monitor screen 1 to a desired position, and coordinates of the target mark display position 10 are recognized by a main body 20 with the operation of an entry operation device 19. Thus, it is unnecessary for the operator to move the cursor with his hand.</p> |
