Abstract: A computer screen filter includes an optical layer for changing the optical characteristic of a light emitted from a computer screen and a bonding mechanism layer, locally disposed on at least three sides of the optical layer. The optical layer is substantially in a rectangular shape and has two sides, and the bonding mechanism layer is disposed on a side of the optical layer, and the computer screen filter is only connected to a side of the computer screen by the bonding mechanism layer in a non-permanent fixation manner.

Abstract: A folding shelf includes a first sheet body and a second sheet body. The first sheet body has a first block, a second block, a third block, a fourth block, a fifth block and a sixth block. The first block is in a trapezoidal shape and the second block is in a trapezoidal shape and its upper bottom edge is connected to an upper bottom edge of the first block to define an engaged status. The third block is in a triangular shape and connected to one of the side edges of the first block, and the fourth block is in a triangular shape and connected to the other side edge of the first block and configured to be symmetrical to the second block. The fifth block is in a trapezoidal shape and its side edge is connected to one of the side edges of the second block, and the sixth block is in a trapezoidal shape and its side edge is connected to the other side edge of the second block and configured to be symmetrical to the fifth block.

Abstract: A screen film structure with a magnet assembly is used on a screen having a rim. The screen film structure includes a screen film and a magnet assembly. The magnet assembly includes a first magnet element and a second magnet element. The first magnet element is attached to the rim. The second magnet element is attached to the screen film. The first magnet element and the second magnet element are magnetically attracted to each other to arrange the screen film to cover the screen. Accordingly, it is easy and convenient to attach and detach the screen film structure, and the screen film is fastened firmly to the rim.

Abstract: A housing supporting apparatus includes: a base-plate body having a base-plate axis; a connection plate body having one end formed with a connection plate axis and pivotally connected to one end of the base-plate body; a first supporting plate having a first axis pivotally connected to the one end of the connection plate body; and a second supporting plate having a second axis pivotally connected to one end of the first supporting plate. The second supporting plate has one end pivotally connected to the base-plate axis.

Abstract: A housing supporting apparatus includes: a base-plate body having a base-plate axis; a connection plate body having one end formed with a connection plate axis and pivotally connected to one end of the base-plate body; a first supporting plate having a first axis pivotally connected to the one end of the connection plate body; and a second supporting plate having a second axis pivotally connected to one end of the first supporting plate. The second supporting plate has one end pivotally connected to the base-plate axis.