Chemically and thermally stable covalent organic framework (COF) materials are configured and operative as solid adsorbents for capturing gases and water.

A luminaire including an LED light source, a plurality of color filters, an optical device, and a control system is provided. In response to receiving an optical device setting value via a data link, the control system moves the optical device according to the setting value, calculates modified positions for one or more of the color filters based on an effect of the optical device on the color of the light beam of the luminaire, and causes the one or more color filters to move to their modified color filter positions, in order to reduce the effect of the optical device on a beam color emitted by the luminaire.

The present invention provides a surgical illuminator. The surgical illuminator includes a base, a guide barrel, a cam barrel, a grip ring, a lens barrel, a printed circuit board having three light emitting diodes, a triple aspheric lens, a first lens mask, a triple double-convex lens and a triple double-convex lens. Methods of using the surgical illuminator are also provided.

A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a slide that frictionally engages the interior of the housing, allowing a user to adjust the spacing between the light emitting diode and the lens as desired. Personal cooling apparatuses usable with the lighting apparatus are also described. Auxiliary undergown switches are also described as are personal cooling apparatuses.

Provided herein is a structure for supporting a light source. The structure may include a housing having a first longitudinal end and a second longitudinal end, with a cavity defined within the housing extending along a portion of a longitudinal length of the housing from the first longitudinal end. The structure may include a surface extending across the second longitudinal end, where the surface includes a light source receiving area, and an opening defined from the light source receiving area through the surface and opening to the cavity. A light source driving circuit may be received within the cavity and including at least one electrical connection extending from the light source driving circuit, through the opening to the light source receiving area. The light source receiving structure may be received within the flashlight. The housing may be cylindrical and may include a threaded exterior surface at the first longitudinal end.

Provided herein is an improved apparatus and system for providing a flashlight and charging base system. The flashlight of may include a light source, a power source having a charge level, a housing defining a major axis along which the housing extends, an adjustable ring disposed about the housing, where the adjustable ring is configured to be rotated between at least two positions, where each of the at least two positions define a different mode of operation, and a switch located proximate the barrel, where the switch is configured to turn the flashlight on and off. The adjustable ring may include a magnet, where the housing includes a Hall effect sensor, where the at least two positions of the adjustable ring are recognized by the position of the magnet relative to the Hall effect sensor.

A portable light may comprise: a light housing having housing parts for enclosing a source of electrical power and supporting an electrical light source, a slide latch slidable on the light housing parts between latched and unlatched positions; a projection proximate the slide latch when the housing parts are adjacent; wherein when the slide latch is moved to the latched position, separation of the housing parts is prevented, and wherein when the slide latch is moved to the unlatched position, the housing parts can be separated. A tool may be needed to open the housing.

A flashlight has a casing extending along an axis, a light source capable of emitting a cone of light, and a lamp head with a lens attachment that can be displaced axially relative to the light source in order to focus the emitted cone of light. A cylindrical connecting piece connected positively to the lamp head is axially movable on the casing for fixing the lamp head in a selectable longitudinal axial position on the casing.

A portable lighting device control module configured to adjust lighting operations of a portable lighting device. In some examples, the control module may interpret real-time user gestures and external conditions of the portable lighting device to modifying lighting operations. The control module installed within a portable lighting device may be configured to permit automatic dimming of LEDs, enable a low power standby mode in absence of motion being detected, automatic mode adjustments in response to low battery determination, adjustment to lantern mode when a bump gesture is detected, continuous alternation between modes within lantern mode by detecting subsequent bump gestures, exiting lantern mode by detecting orientation, locking the lighting operation to a specific mode by determining orienting as either upwards or downwards, switching between modes by performing twist and return gestures, switching between modes by performing whip gestures, instantaneously dimming the light intensity by twisting the portable lighting device.

A lighting apparatus for use as a surgical headlamp is disclosed. A light emitting diode is positioned in a recess within a frustoconical, thermally-conductive heat sink that has a several circumferential ridges to provide a desired surface area for heat transfer. The diode and the heat sink are provided in a housing that also includes a fan for drawing ambient air into the housing to contact the heat sink and exhausting heated air. A lens is snap-fit into a slide that frictionally engages the interior of the housing, allowing a user to adjust the spacing between the light emitting diode and the lens as desired. Personal cooling apparatuses usable with the lighting apparatus are also described. Auxiliary undergown switches are also described as are personal cooling apparatuses.