A thin aluminium foil is sandwiched in between two equal sized rectangular acrylic blocks fitted inside a plastic moulded block. Two eyepieces fitted on opposite sides of the block to differentiate be...
A thin aluminium foil is sandwiched in between two equal sized rectangular acrylic blocks fitted inside a plastic moulded block. Two eyepieces fitted on opposite sides of the block to differentiate between the light intensity of two light sources
A thin aluminium foil is sandwiched in between two equal sized rectangular acrylic blocks fitted inside a plastic moulded block. Two eyepieces fitted on opposite sides of the block to differentiate between the light intensity of two light sources
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