| 摘要 |
An apparatus for the collection of sunlight having a cross section comprising at least two substantially horizontal support arms, rigidly mounted one above the other on a support post, the lower substantially horizontal support arm pivotally connected to a lower support frame, the lower support frame being adapted to collect sunlight, the lower support frame adapted to move between a first substantially horizontal condition on the lower substantially horizont arm and a second inclined condition, the upper support arm supporting an upper supporting frame adopted to move between a first substantially horizontal condition directly above the lower support arm, and a second inclined conditi whereas the support frames are inclined towards the sunlight so that the upper frame member cast minimum shadow the lower frame member. |
