Abstract: A lens assembly is provided for use with a flashlight or similar apparatus, the lens assembly provides separate optimization of a first beam of light and a second beam of light. The lens assembly is adapted for use in multiple LED applications, such as the use of white and infrared light beams in a single flashlight apparatus.

Abstract: A portable infrared (IR) detection system can be used to scan an adjacent terrain and detect an IR source, such as a person or animal, by detecting heat emitted therefrom. Humans, animals and other sources emit IR radiation which can be detected by an IR detector. The emitted radiation is captured by a tube and reflected onto a sensor using a parabolic or other reflector. The sensor is connected to a display component for producing an audible, visual, or vibrational alert. Activities such as hunting, boating, and camping, often accompany situations where detection of a human, animal, or other heat source can be a valuable tool. This invention provides a portable IR detection system for use in these and other activities, the portable detection system being collapsible, portable and cost-efficient.