A method of operating an aircraft headlight system of an aircraft, the aircraft headlight system having at least one headlight, includes the steps of operating the aircraft headlight system in a landing light mode during a descent of the aircraft, with the at least one headlight emitting a landing light output in the landing light mode; operating the aircraft headlight system in a taxi light mode during taxiing of the aircraft, with the at least one headlight emitting a taxi light output in the taxi light mode; and transforming the landing light output into the taxi light output after touch-down of the aircraft by operating the aircraft headlight system in at least one intermediate lighting mode between operating the aircraft headlight system in the landing light mode and operating the aircraft headlight system in the taxi light mode.

A reflecting device includes at least one reflecting cavity corresponding to at least one light source. A first reflecting cavity located at an extremity of the reflecting device includes a first reflecting part, able to receive incident light from the light source corresponding to the first reflecting cavity, and reflect this light towards the second reflecting part. A second reflecting part adjoins the first reflecting part is able to reflect the reflected light from the first reflecting part towards the outside of the first reflecting cavity. The first reflecting cavity at the extremity of the reflecting device may include a first reflecting part and a second reflecting part, which are able to subject light rays from the light source to double reflection. This can considerably increase the design flexibility of the first reflecting cavity.

A reflecting device includes at least one reflecting cavity corresponding to at least one light source. A first reflecting cavity located at an extremity of the reflecting device includes a first reflecting part, able to receive incident light from the light source corresponding to the first reflecting cavity, and reflect this light towards the second reflecting part. A second reflecting part adjoins the first reflecting part is able to reflect the reflected light from the first reflecting part towards the outside of the first reflecting cavity. The first reflecting cavity at the extremity of the reflecting device may include a first reflecting part and a second reflecting part, which are able to subject light rays from the light source to double reflection. This can considerably increase the design flexibility of the first reflecting cavity.

A system may have lights produce illumination. A light may be provided with a collimated light source that produces collimated light. The collimated light source may use lenses or reflective optical elements to produce the collimated light. The light may have an array of light elements each of which emits a respective beam of the illumination. Each light element may have a preshaping lens that receives the collimated light and produces corresponding preshaped output light and an output lens that receives the output light from the preshaping lens and produces a corresponding beam of the illumination. An electrically adjustable shutter may be located between each preshaping lens and output lens to adjust the illumination between a low-beam pattern and high-beam pattern.

Improved light emitting diode (LED) vehicle headlamps having a dedicated daytime running lamp (DRL) component are described. In various embodiments, a combination Low Beam/DRL headlamp is provided, which uses pulse width modulation (PWM) detection to determine which of the two internal LED light sources (Low Beam or DRL) is powered on. If the Low Beam/DRL headlamp detects a PWM signal on the Low Beam voltage input then it switches to drive the DRL LEDs. If, alternatively, it detects a steady state input voltage then it switches to drive the Low Beam LEDs.

A dynamic exterior aircraft light unit, mounted to an aircraft for illuminating an aircraft environment, includes an LED group with a plurality of LEDs, and an optical system with at least one optical element. The optical system being associated with the LED group for shaping an output light intensity distribution from the light emitted by the LED group and the LED group and the optical system are stationary within the dynamic exterior aircraft light unit.

A headlamp including a matrix static bending lights (SBL) optical system, which enables light to be turned on/off. The headlamp includes a headlamp body installed in a front region of a vehicle and including a main optical system for irradiating light, corresponding to one of a low beam headlight, a high beam headlight, and a glare free high beam (GFHB) headlight, onto the front of the vehicle, a reflective structure disposed on one side surface of the inside of a housing of the headlamp body with respect to a direction intersecting an installation reference direction of the main optical system and including a plurality of reflective surfaces, and a light source unit disposed apart from the reflective structure and including a plurality of light source chips that target at a reflective surface of the reflective structure and irradiate light onto the targeted reflective surface.

Improved light emitting diode (LED) vehicle headlamps having a dedicated daytime running lamp (DRL) component are described. In various embodiments, a combination Low Beam/DRL headlamp is provided, which uses pulse width modulation (PWM) detection to determine which of the two internal LED light sources (Low Beam or DRL) is powered on. If the Low Beam/DRL headlamp detects a PWM signal on the Low Beam voltage input then it switches to drive the DRL LEDs. If, alternatively, it detects a steady state input voltage then it switches to drive the Low Beam LEDs.

A lighting device disclosed in the embodiment of the invention includes a base member including a straight portion and a curved portion, a substrate including a first substrate disposed on the straight portion of the base member and a second substrate disposed on the curved portion; a plurality of light sources disposed on each of the first and second substrates, a resin layer including a first resin portion disposed on the first substrate and a second resin portion surrounding the second substrate, and a phosphor layer disposed on the resin layer, and an outer side surface of the second resin portion may include a curved surface.

A system may have lights produce illumination. A light may be provided with a collimated light source that produces collimated light. The collimated light source may use lenses or reflective optical elements to produce the collimated light. The light may have an array of light elements each of which emits a respective beam of the illumination. Each light element may have a preshaping lens that receives the collimated light and produces corresponding preshaped output light and an output lens that receives the output light from the preshaping lens and produces a corresponding beam of the illumination. An electrically adjustable shutter may be located between each preshaping lens and output lens to adjust the illumination between a low-beam pattern and high-beam pattern.