Abstract: A lens assembly includes a lens, a lens barrel, and a heater element. The lens has an inner surface and an outer surface. The lens barrel supports the lens and defines an optical axis, the lens arranged along the optical axis such that the inner surface of the lens is within the lens barrel and the outer surface of the lens is outside the lens barrel. The heater element is in intimate mechanical communication with the inner surface of the lens and has a heater element electrical lead extending radially therefrom to provide power to the heater element. Lens heating methods are also described.

Abstract: A camera assembly for an interior of an automobile is disclosed. The camera assembly includes a lens, an image sensor, a printed circuit board, at least one illuminator, and a lens mount. The lens, image sensor and at least one illuminator are operatively connected to the printed circuit board. The lens mount includes at least one integrated heat sink configured to dissipate heat from the at least one illuminator.

Abstract: A camera assembly for an interior of an automobile is disclosed. The camera assembly includes a lens, an image sensor, a printed circuit board, at least one illuminator, and a lens mount. The lens, image sensor and at least one illuminator are operatively connected to the printed circuit board. The lens mount includes at least one integrated heat sink configured to dissipate heat from the at least one illuminator.

Abstract: A lens assembly includes a lens, a lens barrel, and a heater element. The lens has an inner surface and an outer surface. The lens barrel supports the lens and defines an optical axis, the lens arranged along the optical axis such that the inner surface of the lens is within the lens barrel and the outer surface of the lens is outside the lens barrel. The heater element is in intimate mechanical communication with the inner surface of the lens and has a heater element electrical lead extending radially therefrom to provide power to the heater element. Lens heating methods are also described.

Abstract: A laser aiming light for firearms includes interchangeable switches for selectively limiting the laser output to an eye safe level for training purposes and for providing full power for operational use in a combat zone. A capability for using a remote switch is provided. As the output of the laser diode and associated components are temperature sensitive, temperature compensating circuitry ensures adequate power at high, as well as at low, ambient temperatures. Power is provided by enclosed conventional batteries retained by a sealed cap maintained in place by a pivotally mounted retainer and locking mechanism.