Dark Box

Abstract

A multifunction dark box includes a frame and an overcoat covering the frame. A light-blocking and high reflective hermitical chamber is formed inside the overcoat. A zipper is provided on three rectangle faces of the overcoat. A water-proof and light transmitting backing is provided in the zipper.

1 . A dark box, comprising a body and a frame provided therein, wherein the outer surface of said frame is covered with a casing, so as to form in the casing a sealed chamber which is light-tight and intensively light-reflecting internally. 
   
   
       2 . The dark box as claimed in  claim 1 , wherein said frame has a rectangular parallelepiped shape. 
   
   
       3 . The dark box as claimed in  claim 2 , wherein said frame is formed by connecting metal pipes, with right-angled connectors being sheathed on at the three dimensional right angles formed by said three metal pipes. 
   
   
       4 . The dark box as claimed in  claim 3 , wherein there are eight of said right-angled connectors, and in that each said right-angled connector is a three-way joint, wherein each two of the joints are disposed at an angle of 90 degrees with respect to each other, and wherein connecting holes are provided within the joints, the diameter of the connecting holes being slightly larger than the cross-sectional diameter of the metal pipes and said metal pipes being just capable of being inserted into said connecting holes. 
   
   
       5 . The dark box as claimed in  claim 1 , wherein said casing is a double-layer casing, with the outer layer being a light-tight material, and the inner layer being a light-reflecting material. 
   
   
       6 . The dark box as claimed in  claim 5 , wherein said casing is provided with three ventilation holes which are respectively disposed in any three of the vertical rectangular faces of the casing. 
   
   
       7 . The dark box as claimed in  claim 6 , wherein each ventilation hole is provided with a mesh face, behind which a closing layer for closing the ventilation hole is provided, the closing layer being of the same material as the inner and outer layers of the casing, and said closing layer can also be disposed outside the mesh face, with Velcro being provided on the closing layer, so as to stick to the Velcro provided on the casing. 
   
   
       8 . The dark box as claimed in  claim 7 , wherein said casing is provided with four holes, with a first hole and a second hole of the same size and position being opened beside the ventilation holes in the corresponding two of the vertical rectangular faces of the casing for drawing in outside air, a third hole of a diameter smaller than that of the first hole being provided at the opposite end of the ventilation hole in any of the other of the vertical rectangular faces for the connection of electrical input, and a fourth hole being provided in the top transverse rectangular face for drawing out air from within the dark box, the diameter of the fourth hole being equal to that of the first and second holes. 
   
   
       9 . The dark box as claimed in  claim 8 , wherein said first, second, third and fourth holes are respectively provided internally with a first stocking, with an end of the first stocking being connected within the hole, and a second stocking being provided outside the first stocking, and the other ends of the first and second stockings being provided respectively with a string for knotting or loosening the stocking. 
   
   
       10 . The dark box as claimed in  claim 1 , wherein said three connected rectangular faces of said casing are provided with zipper openings for the ease of assembly/disassembly of the whole dark box, the zipper being provided with a water- and light-proof backing.