Radiation-tolerant camera gets a motor

Louise Smyth

Resolve Optics has launched a motorised version of its Model 357 non-browning zoom lens for use with radiation-tolerant cameras.

The system combines remote control of lens functions with provision of true high definition (HD) quality images, over a 10x zoom range.

Mark Pontin, Managing Director of Resolve Optics commented, "We introduced the motorised version to further improve the safety of personnel working in nuclear plants. This versatile motorised HD lens is available for use with both 2/3-inch (12mm) and 1/3-inch (6mm) rad-hard colour cameras."

The Model 357 uses special non-browning glass enabling it to produce clear sharp images free of the strong yellow tint that has traditionally been a limiting issue when using radiation resistant lenses on colour sensors. This is proven to withstand long-term exposure to radiation up to a dose of 100,000,000 radians and temperatures to 55°C without discoloration. Operating at f/1.8 inch, the 1/3-inch format Model 357 provides high image resolution and minimum geometric distortion from 400 to 770 nm, and can image objects from 800 mm to infinity without using add-on adapters. When focused at infinity, the lens achieves high image resolution on axis at full aperture throughout the zoom range without refocusing.