OPHTHALMIC LENS PRODUCTION

STEP BY STEP TO THE PERFECT OPHTHALMIC LENS

The individual steps in the production of ophthalmic lenses are defined by both state-of-the-art technology as well as precision craftsmanship.  MPO® ophthalmic lenses are produced in Glücksburg, Germany, using the innovative freeform technology. The surface of the ophthalmic lens can thus be precisely adapted to the requirements of the wearer of the spectacles. This guarantees outstanding wearing comfort and maximum visual acuity.

 
Blocking - production of lenses

Production steps

RECEIPT OF ORDER

As soon as the order has been received by the optician at Schulz Optische Fabrik, the individual ophthalmic lens is calculated and assigned to the correct base lens (blank). Innovative calculation methods ensure that the individual customer requirements can be precisely taken into account and transferred to the ophthalmic lens.

 
BLOCKING

A protective film is applied to the outer surface of the blank. A block piece is fixed to this. This connection facilitates machine processing. 

 
milling polishing engraving the lense

MILLING

In this CNC-controlled work process, the optical effect is produced, i.e. the customer parameters are applied to the ophthalmic lens. Here, it is particularly important that professionals operate the machine. A perfect result can only be ensured if the milling machine is ideally controlled.

 
POLISHING

Immediately after this, the surface of the ophthalmic lens is polished. It is important that the design character of the product is retained in this process. This in turn requires the special know-how of the employees who adapt the special polishing tools precisely to material and surface geometry. A finely coordinated polishing process is also tangible for the wearer of the spectacles as the visual properties of the ophthalmic lens are defined even better.

 
ENGRAVING

In this step, the ophthalmic lens is given the seal of quality of MPO®. Although the laser engraving is not visible to the naked eye, it is important to be able to trace where the lens comes from.

 
cleaning and finishing the lenses

CLEANING

The ophthalmic lens is then separated from the block, manually checked by the employees and cleaned by ultrasound. The cleaning is done in several steps with various cleaning agents. The result of this process is a pure, dry, crystal-clear, uncoated ophthalmic lens. After this step, the employees check the ophthalmic lens again.

 
DYEING/FINISHING

In the next step, the ophthalmic lenses are dyed in the dyeing tank with the colour ordered.  The hard layer is then applied in a dipping procedure. Various compositions or lacquers specifically adapted to the index are used for different materials. After another ultrasound cleaning, the various finish products from the MPO® portfolio are applied in a high-vacuum vaporisation system.

 
QUALITY CONTROL

QUALITY ASSURANCE

Here, the ophthalmic lens is thoroughly tested again. Experienced employees check quality, visual acuity, ophthalmic lens design and micro engraving before it is sent to the optician.