| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide, by adding a movable phase-difference plate to a building structure fitted only with a linear-polarization plate, the building structure which can produce a variable light space where a structure meant for staging a constant space with shielding or transmitting light is enabled to optionally transmit or shield light. <P>SOLUTION: A movable building structure comprises a first polarizing plate 1 having polarization effect, a second linear-polarization plate 3 that analyzes an optical axis of the light incoming from the side of the first linear-polarization plate 1, and a movable phase-difference plate 2 that displaces the phase of the light on the light path created by the first linear-polarization plate 1 and the second linear-polarization plate 3, and switches the light path between the one, on which the light incoming from the side of the first linear-polarizing plate 1 passes the phase-difference plate 2 and is analyzed by the second linear-polarization plate 3, and the other, on which the light incoming from the side of the first linear-polarizing plate 1 is directly analyzed by the second linear-polarization plate 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
