For remote and hazardous environments where simple optical design offers significant benefits—Resolve Optics has developed a new optically compensated zoom lens design that vastly reduces the moving parts to just a single push pull movement.

One of the biggest advantages of using a zoom lens is that it allows you to change focal lengths without changing your lens. A zoom lens also provides a range of variable focal lengths which can be adjusted using the zoom ring on the lens. Because of this inbuilt versatility—zoom lenses are complex with lots of close tolerance components sliding and rotating within each other. This is fine under normal conditions, but at extremely low and high temperatures or in the vacuum of space producing these movements presents a challenge.

Mark Pontin, managing director of Resolve Optics commented "In our new zoom lens design there are two groups of optical elements that move together in relation to a middle group. The movement is linear so there is no requirement for complex cam profiles. Our optically compensated 4x zoom lens beneficially also maintains focus and resolution throughout its zoom range."

He added: "We are looking for partners to ‘road-test’ our new optically compensated zoom lens over the coming months. Organizations wishing to learn more about the optically corrected zoom lens should send us details of their target application via our online form at https://www.resolveoptics.com/request-form-1/."