How Do They Make Camera Lens
06 Feb 2015 Event
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We always use lenses of various kind but ever wondered how a lens is being made. I had an opportunity to go through the manufacturing process of a lens company. Who makes lenses for some renowned brands.
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The process begins with cut pieces of raw ground glass of different sizes as per demand.
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They are polished at different stages and checked repeatedly for quality control. Then coating is applied.
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This machine runs round the clock and polishes lens.
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Checking the lens for imperfection.
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Lens gathered in batches for quality control.
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Checking lens specification.
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Different type of polishing devices used as per requirement.
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Once polishing finished lenses are cleaned in acidic bath.
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A polished lens is as clear as water.
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A multicoated lens gives superior image quality. This machines puts the coat on a lens. Lenses arranged in a dome and ready for coating.
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Lens coating chamber.
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Coated lenses in dome.
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Once coating is finished lens gives the multicolour glow.
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Rechecking glasses.
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Two lens element are joined by optically clear glue.
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The bonding is made permanent by laser ray.
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To reduce unwanted reflection dark color coating is applied at the rim of lens.
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Final quality control.
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At last the lenses are ready for shipment. These products grouped together in final assembly line for making the camera lens that we use in camera.