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Finally, the lens color replica oakley sunglasses in the sun’s rays shot to darken. When the lighting is weakened, it also re-opened. It does so because the silver halide crystals at work. Under normal circumstances, it enables the lens to maintain a perfect transparency. In sunlight exposure, the silver crystals separated, the silver in the free form small aggregates formed within the lens. These small silver aggregation takes the shape of interlocking irregular blocks, they can not transmit light, but can only absorb light, the result of the lens to darken. In brightness, crystal and re-formed, the lens has resumed to the bright state.
