Optical bench assembly
Four pieces of scale of lenght 58cm with marking 0-50cm on one side and 50-100cm on other side,Scale width 25mm and thickness 8/10mm. End locking pins(2), strips for joining scales (2), sliding bases for uprights(4)sliding upright holder(4),mirror/lens holders(2), screen (10cm x 15cm)Lock for horizontal motion of
holders. As per sample See Enlarge
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