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We can repair most coating problems and cement separations of doublets and triplets. We also remove haze and fungus from optical surfaces when the surfaces are not too damaged.These projects are labor intensive and therefore can be expensive. The expense to polish off the old coating is in the setup time. Polishing is the only safe procedure for removal (rather than acids). There is no way to know what the raw glass material may contain in the way of heavy metals. The lens manufacturers do not give out this information, and you cannot look at the glass and know. There are expensive tests that can be done, but this is not economical. Therefore, we polish off the old coating and apply new magnesium flouride coatings. |
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©2000-2012 Focal Point Inc. |