There are many different forms of radiation, not all of them dangerous in any way. In fact, the visible light that everyone is familiar with is a kind of radiation, with energy of relatively low intensity being picked up by the eyes and absorbed by the chlorophyll in plants. In practice, of course, most talk about radiation focuses on the potentially harmful kinds. As the energies involved climb, the ability of this form of energy transmission to do damage increases quickly. When radiation becomes intense enough, it can even become capable of knocking electrons out of the atoms they normally circulate about, producing an ionizing effect.
As might be expected, this type of radiation can be incredibly destructive. Although this broad classification includes radiation of both particular and wave-based forms, all are capable of transforming or destroying substances they pass through. Coupled with the fact that many such kinds of radiation are inherently capable of penetrating deeply into just about any material owing to their wavelengths, and guarding against ionizing radiation becomes a high priority for many different reasons.
With regard to human beings, the goal is invariably to prevent both immediate harm and potential long-term consequences of exposure like cancer. There are a variety of ways of doing this, but just about all of them revolve around providing shielding that will block the penetration of harmful, ionizing radiation.
The same thing is often true of certain kinds of equipment and machinery, too. Silicon chips and memory modules, for example, can be temporarily or permanently disabled by ionizing radiation, so those that are meant to function in radioactive environments must be shielded appropriately.
Ionizing radiation can also be problematic where optical instruments and sensors are concerned. In addition to interfering with basic operation, radiation of this kind can result in long-term damage to glass that is used in lenses and other optical parts. Much like the dual dangers that face human beings who are exposed to ionizing radiation, these twin threats mean that effective ways of blocking harmful radiation must be employed.
Most commonly, that entails the use of special Radiation Glasses designed by companies like Kemper Medical. It is possible to Buy Radiation Glasses of many different kinds today, but all incorporate special, radiation-blocking treatments into the glass itself. The Best Radiation Glasses will block the vast majority of intense, ionizing radiation that strikes them, while still allowing most visible light and other desirable forms of radiation to pass through without much alteration.