STEPS IN MANUFACTURING ESSILOR LENSES

For more than 160 years, Essilor has devoted itself to innovative research that will benefit everyone
who wears glasses. Present in 55 countries, Essilor cares deeply about the well-being of its customers,
meeting their needs so that as many as possible can see well, in order to live better.

The manufacturing of eyeglass lenses requires numerous calculations,
several operations, sophisticated equipment and the intervention
of highly qualified technicians.

Follow the journey of a lens
through our lab.

THE 18 STEPS IN MANUFACTURING ESSILOR LENSES

The Order

The Order

Your eyecare professional orders your lenses and sends your frame to Essilor. The customer service agents make sure all the details of the order are filled in. Your order is sent on to the laboratory.

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Choix du semi-fini

Choice of the semi-finished blank

The clerk in the stock picking department validates the order form and chooses the appropriate semi-finished blanks.

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Protection du verre

Blue film protection

Your lenses are taken out of their packaging and a protective blue film is applied on their front side.

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Opération blocage

Blocking the lens

The technician retrieves the data for your order and chooses the insert and ring that will be used to block the lenses, a camera-assisted operation. The space in the insert/ring/lens assembly is filled with a lead alloy. Your lenses are ready for the next steps.

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Surfaçage

Surfacing

In the generator, the back side of your lenses is cut according to the parameters of your prescription.

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Polissage

Polishing

Your prescription has now been integrated in your lenses but the lenses’ surface must be polished so they become clear. The data for your order is recalled and your lenses are polished.

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Gravure

Engraving

Progressive and optimized single vision lenses must be engraved so they can be easily identified in the future.

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Libération du verre

Unblocking the lens

The lead alloy block installed at the beginning of the process is removed as is the protective blue film.

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Conformité

Inspection

Your lenses are inspected to ensure that the cosmetic aspect and prescription meet the standards. Any lens deemed flawed will have to be redone.

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Teinte

Tint

Lenses that require it are tinted. Equipment parameters are adjusted according to the tint chosen from the comprehensive Essilor collection or the sample provided by the eyecare professional. Once tinted, each lens is compared to the sample to ensure a perfect match.

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Nettoyage

Cleaning

Lenses are placed in a special stand and will be dipped in a number of baths to be perfectly cleaned and treated to resist scratches.

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Conformité cosmétique

Inspection

The cosmetic aspect of each lens is checked again and those that meet the standards are set down on a tray.

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Traitement contre les rayures

Scratch-resistant coating

The lenses go through the oven, the last step for the scratch-resistant coating.

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Traitement antireflet

No-glare coating

The lenses are set in racks that go into the vacuum chamber where the layers composing the no-glare coating will be applied. Both sides of each lens must be treated.

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Vérification finale

Final inspection

A technician checks the lenses’ cosmetic aspect, power and engravings one more time.

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Marquage

Markings

The yellow markings that enable the eyecare professional to make sure the lenses are as ordered are applied.

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Taillage- Montage

Edging and Mounting

Your lenses and your frame are brought together. The shape of your frame is read and entered in the system with the help of the digital tracer. The lenses are blocked and edged before being mounted in the frame. They are cleaned and checked one last time.

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Expédition

Shipping

Your eyeglasses are carefully wrapped and sent to your eyecare professional.

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