Abstract: An LED headlamp for attachment directly or indirectly to a user. Generally speaking, the disclosed headlamp includes an adjustable strap for securing to a user (e.g., head, arm, jacket, backpack, etc.), an LED array detachably securable to the adjustable strap, and a battery pack coupled to the LED array via an input power port. Preferably, the battery pack is rechargeable and is hardwired to the LED array. Optionally, the array may include a connection port that can accept any of several different power sources for powering the LED array of the headlamp, including a DC battery pack (e.g., AAA, AA batteries), a portable charger, an AC connection, to a wall outlet, and a computer USB charging connection. Further, the LED array may include a range of from 4 to 30 LEDs; more preferably, the number of LEDs is in the range of from 8 to 20. The LEDs should be spaced to provide a broadband of illumination, as opposed to a focused beam.

Abstract: Systems, apparatus, and methods for operating brake lights on moving vehicles. A sensor transduces level or state of current braking of the vehicle. The transduced level or state of braking is converted into an instruction to produce a display of luminance at the brake lights which is proportional to the level or state of current braking to allow viewers to react accordingly. In one example, brake fluid pressure in the braking system is measured to transduce level or state of braking. Preset thresholds of brake fluid pressure are correlated to plural braking levels or states. Luminance at the brake light is expanded or contracted in real time with the changing of braking levels or states.