METHOD AND APPARATUS FOR ELECTRONICALLY GENERATING AN OUTLINE INDICATING THE SIZE OF AN ENERGY ZONE IMAGED ONTO THE IR DETECTOR OF A RADIOMETER

A radiometer includes a sighting system that generates a digital image of an object surface having an area that is to be imaged onto the IR detector. A shape outline is overlaid on the digital image of an object surface to indicate the extent of the energy zone that is imaged onto the IR detector. In one embodiment, a shape is displayed between the locations of two imaged skewed laser dots to indicate the extent of the energy zone without requiring a range determination.