Touch-free lighting systems are described. In one embodiment, a touch-free lighting system may include a light, a battery housing, a pod coupled to the light and the battery housing, and a touch-free sensor coupled to the pod. The touch-free sensor may be configured to adjust a brightness of the light when activated. Methods of operating a touch-free lighting system are described. In one embodiment, a method may include adjusting a brightness of a light by activating a touch-free sensor coupled to the light.

In one aspect, a light module is disclosed, which includes a housing providing a hollow chamber extending from a proximal end to a distal end, and a lens positioned in the hollow chamber, where the lens has a lens body comprising an input surface for receiving light from a light source and an output surface through which light exits the lens body, said lens further comprising a collar at least partially encircling said lens body. The light module further includes at least one shoulder on which the lens collar can be seated for positioning the lens within the housing. A light source, e.g., an LED, is coupled to the hollow chamber, e.g., at its proximal end, for providing light to the lens.

A lighting device configured to deactivate pathogens in an environment. The lighting device includes a housing, means for mounting the housing to a surface in the environment, one or more first light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a first range of wavelengths, and one or more second light-emitting elements arranged in the housing and configured to each produce disinfecting light having a wavelength in a second range of wavelengths different from the first range of wavelengths. The disinfecting light produced by the first light-emitting elements and the disinfecting light produced by the second light-emitting elements mix to form a combined light, the combined light being visible light other than white light.

An illumination system is provided that includes a laser light source, a light guide, a connector, and an emission element. The laser light source has a numerical aperture. The light guide has a proximal end and a distal end. The connector has a connector housing and connects and/or assigns the laser light source at the proximal end. The emission element is at the distal end. The connector housing has a device that reduce an influence of a range of variation of the numerical aperture so that an emission behaviour of the emission element is independent of a range of variation of the numerical aperture.

A headlight device includes a headband for encircling a head of a wearer, a padding system having a pad attached to at least a portion of the headband, the pad including a first layer and a second layer. The first layer includes a first cushioning material having a first durometer and or the second layer includes a second cushioning material having a second durometer, or the first layer is perforated in a first perforation pattern and or the second layer is perforated in a second perforation pattern.

A user-wearable illumination assembly comprising eyeglass frames supporting a pair of lenses, a mounting structure on a bridge of the eyeglass frames, a headlamp removably coupled to the mounting structure, a battery housing removably coupled to the headlamp, and a battery inside the battery housing.

A light-emitting device includes: a light source that radiates primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a longer wavelength than the primary light, wherein the primary light is laser light, the first wavelength-converted light includes fluorescence based on electron energy transition of Cr.sup.3+, and a fluorescence spectrum of the first wavelength-converted light has a maximum fluorescence intensity value in region of a wavelength exceeding 710 nm.

A compact precision illumination source mounts on a finger of a user for providing localized illumination for precision tasks such as surgical procedures and other tasks performed in dark or confined spaces. A frame having a circular or arcuate shape engages the finger, and secures an enclosure having a small but powerful bright, light focused on a predetermined region defined by the end of the digit that is likely the activity region for an instrument grasped by the digit. The frame engages a charge module for aligning external conductors for recharging a power supply in the illumination source.

Head wearable devices and methods are disclosed where a head wearable device includes a headpiece including a headband and an occipital basket attached to the headband, and a first housing attached to the headband. A depth adjuster is attached to the first housing and configured to change, by controlling a distance between the occipital basket and the first housing, a depth of the headpiece. A second housing is attached to the occipital basket, and a headband adjuster is attached to the occipital basket to change a circumference of the headpiece by controlling a distance between respective opposing ends of the headband and the second housing.

A head wearable device includes a headpiece, a housing attached to the headpiece, a luminaire attached to the headpiece, the luminaire including a luminaire housing and at least one light source located within the luminaire housing, a duct system connecting the luminaire to the housing, a ball joint rotatably connecting the duct system to the luminaire, and an air moving device configured to induce a cooling air flow through an inlet in the luminaire housing, through the heatsink, through the ball joint, through the duct system, and out of an exhaust in the housing attached to of the headpiece.