Does My Application Require Radiation Resistant Lenses?

In nuclear power, nuclear reprocessing, space, medical and other scientific applications optical glass may be exposed to high energy radiation like gamma, electron, proton and neutron radiation. With the accumulation of higher doses this radiation reduces the transmittance of optical glass (turning brown or grey) especially near the UV-visible edge of the spectrum.

Optical glasses can be stabilised against transmittance loss caused by ionizing radiation by adding Cerium (Ce) to the composition. The extent of stabilization differs from glass type to glass type. Every cerium stabilized glass type shows the letter G and a number as an additional suffix in the glass name. The number in the suffix divided by 10 relates to the additional weight percentage of CeO2 in the glass. BK7G16 for instance was stabilized against radiation by adding 1.6 w% of cerium into the BK7 glass matrix.

Over the last 25+ years – Resolve Optics has established itself as a leading supplier of fixed focus and zoom non-browning (radiation resistant) lenses. Drawing upon the same expertise – Resolve has also provided a significant number of custom designed non browning lenses and radiation resistant endoscopes which have enabled our customers to monitor areas with very high radiation to be viewed remotely.

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