Cleaning Optics and Surface Defects


Cleaning Grating
A diffraction gratings surface is very sensitive to touch. Even the lightest brush can damage the surface and thus effect the performance of the grating. For these reasons you should never touch the surface of a grating, instead always wear glove and handle them by their edges.
It is possible to clean a grating surface. Filtered air can be used to clean dust from the grating. Spectrum Scientific can use a mild detergent to remove fingerprints and other materials from a grating. If you would like to have your gratings cleaned please contact our information department.


Cleaning Lenses
Dust can be removed from a lens using compressed air. For greater cleaning applications, such as finger prints, use a lens tissue and a proper lens cleaning solutions.

Cleaning Mirrors
Dust can be removed from a mirror using compressed air. Replicated mirrors can be damanaged by strong cleaning materials, such as acetone or methanol. It is not recommend you use either of these to clean your mirrors.

Grating Surface Defects
Surface defects come in two categories. The first is damage to the grating. These can cause the grating to diffract or not deflect properly. It can also cause large amounts of scattering. If your grating is under performing it may have suffered damage from improper handling.

However often gratings will have cosmetic defects. These defects are visible to the human eye but often do not affect the quality of the grating. They do not cause scattering and do not effect the performance of the grating.

If you are concern over a surface defect in your grating please contact our information department.