| 摘要 |
PROBLEM TO BE SOLVED: To provide a reflection screen configured to easily and appropriately adjust a position of projection light on the reflection screen. SOLUTION: The reflection screen 100 reflects the projection light Lp which has been obliquely projected toward the observation surface 100a from a direction vertically shifted with respect to the normal line of the observation surface 100a of the screen base plate 10, toward the observation side. The reflection screen 100 includes: a plurality of reflection parts 12 formed on the screen base plate 10 to reflect the projection light Lp toward the observation side; and two positioning reflection parts 21 and 22 partly formed on the screen base plate 10 to reflect the projection light Lp toward the side from which the projection light Lp is emitted. In the vicinity of one side 10x of the screen base plate 10, at least two positioning reflection parts 21 and 22 are arranged leaving a space therebetween, on a straight line parallel to the one side 10x. COPYRIGHT: (C)2011,JPO&INPIT |
