Digital Photography Live

How Do They Make Camera Lens

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.

The process begins with cut pieces of raw ground glass of different sizes as per demand.

They are polished at different stages and checked repeatedly for quality control. Then coating is applied.

This machine runs round the clock and polishes lens.

Checking the lens for imperfection.

Lens gathered in batches for quality control.

Checking lens specification.

Different type of polishing devices used as per requirement.

Once polishing finished lenses are cleaned in acidic bath.

A polished lens is as clear as water.

A multicoated lens gives superior image quality. This machines puts the coat on a lens. Lenses arranged in a dome and ready for coating.

Lens coating chamber.

Coated lenses in dome.

Once coating is finished lens gives the multicolour glow.

Rechecking glasses.

Two lens element are joined by optically clear glue.

The bonding is made permanent by laser ray.

To reduce unwanted reflection dark color coating is applied at the rim of lens.

Final quality control.

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.

About Author

Junaed is a Doctor by profession who started photography back in 1992. From film days to digital he is regarded as a very good Photographer. He also appears as guest lecturer in various Photographic clubs & institutes.