Optical Lens Rinsing

After optical lenses are generated, polished and de-blocked, they need to be cleaned and rinsed so that their surface is free from contaminants, ready to be coated. The in-progress lenses are racked and dipped into a small bath of ultra pure water. This quality of water is required for this step as the glass needs to have a spot free finish before having any tint or coating applied.

Although only a relatively small amount of water is required per bath, both the number of lenses cleaned during large scale production and the recirculation of the water in this process require a reverse osmosis system. This will remove sediment, organics and bacteria from feed water to prolong the life of the deionisation resin necessary to purify the water to the highest level.

Recirculation of this water is common within this field. In this case, we recommend using ultraviolet light systems to control the future growth of bacteria within the circulation pipes.

 

 

 

Treatment Process

1

Particle Removal

Our cartridges offer outstanding absorption of sediment, dirt, sand and scale flakes to prevent filtration systems from blockage and microorganism growth.

2

Chlorine and Organics Removal

Carbon cartridges are a long established choice for the reduction and removal of chlorine, VOCs and heavy metals whilst reducing water hardness.

3

Reverse Osmosis

Pure water (permeate)  is produced during reverse osmosis by applying pressure to force water through a semi permeable membrane, leaving a majority of the present ions and dissolved solids on the other side to drain as waste (concentrate).

4

Post RO Deionisation

Our performance mixed bed resin is specially designed for deionisation directly after reverse osmosis. It holds a 1 : 1.5 ratio of strong acid cations and strong base anions to attract and remove all ions, salts and dissolved solids.

5

Ultraviolet Sterilisation

Our UV Systems produce light radiation at 253.7 nm, the ideal wavelength to kill and inhibit the growth of 99.9% of bacteria and viruses without any by product or requirement of chemical treatment.

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