| 摘要 |
The viewer is plat before use and is foldable to be compatible with the constraints of distribution by the press and publications in general. The viewer can have organically based glazing which is aluminised. The viewer can be cut from a sheet of plastics (1) of sufficient rigidity and has folds (AB,BC,CD,DA) which are formed in the blank to allow folding along these axes. The glazing panels can be held by adhesive.
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