| 摘要 |
PROBLEM TO BE SOLVED: To provide a projector designed such that configuration is simple, the number of components is fewer, the cost is low, and a projecting position is easily determined. SOLUTION: A tape measure is mounted in the housing. The tape measure has a tape that has, on its surface, a plurality of numerical values at intervals so as to correspond to view angles displayed on the screen and that is freely pulled out from the drawing opening of the housing. A locking device mounted at the leading end of the tape is locked on the front of the housing. The lock button of the tape measure is disposed on the outside of the housing. The locking device of the tape is locked into the locking part of the screen. The front edge of the housing is put in the position of a specific numerical value of the tape and thus a projecting position is determined. COPYRIGHT: (C)2006,JPO&NCIPI
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