| 摘要 |
A dual panel adjustable light transmission shade apparatus for adjusting the amount of light passing through a window comprises a spool rotatably mounted in a canopy, and an opening in the canopy. A single piece of material forms opposed facing front and rear panels, and a bight is formed at the bottom of the panels. An upper portion of each panel is fastened to the spool at spaced apart locations on the outer surface of the spool. One of the panels moves generally vertically upward and the other panel moves generally vertically downward when the spool is rotated in one direction. A weight bar is lodged in the bight at the bottom of the panels to apply a downward force on the panels, and the weight bar rotates in the bight only when the panels are adjusted relative to each other. |
