Abstract: A directionally manipulatable view enhancement apparatus including a fixed base, a rotatable support supported on the fixed base and rotatable about a pan axis, a yoke disposed on and pivotable with respect to the rotatable support about a tilt axis substantially perpendicular to the pan axis, a pan motor that rotates the rotatable support and yoke about the pan axis, a tilt motor that rotates the yoke about the tilt axis, and a first clutch between the rotatable support and the pan motor permitting the rotatable support to rotate relative to the fixed base independently of the pan motor or a second clutch between the yoke and the tilt motor allowing the yoke to rotate relative to the rotatable support independently of the tilt motor. The yoke retains an electrical component and the pan motor and tilt motor are in electrical communication with a controller remote from the fixed base.

Abstract: A half-duplex communication system includes a first half-duplex transceiver. The first half-duplex transceiver includes a first microprocessor and a current sensor connected to an input of the microprocessor, and the half-duplex transceiver is coupled to a first and second voltage source. The first voltage source is at a first voltage level and the second voltage source is at a second voltage level. The first microprocessor is configured to transmit data by alternatively connecting the first voltage source and the second voltage source to a conductor and to receive data in the form of pulses of current on the conductor detected by said current sensor.

Abstract: Software is used to allow inputs to a microcontroller to have primary and alternate functions, which reduces the need for additional inputs and associated conductors in a programmable device such as a warning signal light. The microcontroller firmware includes a routine that detects the state of inputs during a first predetermined period of time after initialization of the microcontroller. The state of the inputs is used to activate alternate modes of operation in which changes in the state of the inputs is detected and used for functions different than a function associated with the same input in another mode of operation.

Abstract: A seal structure includes a container, a sealant applied in liquid form that cures to a gel, and a cap that applies pressure to the gel. The container surrounds at least one opening in an assembly for the passage of elongated members such as wires. The container defines a chamber that is in communication with the opening and surrounds the wires passing through the opening. A closure spans the opening and is in contact with an inner end of the container. The chamber and the at least opening are partially filled with a predetermined quantity of sealant in liquid form, which cures into a viscous gel. The cap is configured to engage with the container and includes a platform that is positioned within the container and in contact with the gel sealant. In this arrangement, the cap applies positive pressure to the gel sealant.

Abstract: The modular enclosure with water management mating interfaces most fundamentally includes a mechanical connection which directs and obstructs water via various strategically positioned structures and gaps. One basic configuration includes a base having at least one end face and a periphery extending from the end face. The periphery includes an outward projecting lip. A plurality of retainers is secured to the base below the lip. The retainers and the lip define a channel extending along at least part of each side of the base. A dome having longitudinal sides that terminate in a bottom edge and an inward projecting flange that is spaced from the bottom edge is received by the flange in the channel to retain the dome to the base.

Abstract: A multifunction lighthead for mounting to a vehicle includes several groups of LEDs arranged to provide distinct light emission patterns. Each group of LEDs and associated optics are selected and positioned to produce light emission patterns needed to meet lighting standards applicable to the vehicle. Such standards may require wide angle light emission, which is enhanced by supporting groups of LEDs that project away from the vehicle body, enhancing visibility of the lighthead from directions close to a plane defined by the body panel. The projecting support for the LEDs and optics for a wide angle light emission pattern may be employed to support LEDs arranged for ground illumination. Other groups of LEDs in the same lighthead may be arranged with optics to provide area illumination in support of arrest, search, triage or other emergency functions.

Abstract: According to aspects of the disclosure, the system comprises a frame mounted in sealed relation to a surface. The frame includes movable engagement features and surfaces that mate with an accessory body. A gasket positioned between the frame and a mounting surface seals the space between the frame and the mounting surface from surrounding external elements. The frame may be fastened to the mounting surface with tool-free rivet fasteners, or more conventional threaded fasteners. The assembled accessory body and bezel fit over the frame and the movable engagement features of the frame mate with complementary structures on the accessory body to fix the accessory body to the frame. Openings in the accessory body allow a threaded fastener to secure the movable engagement feature of the frame in the mated position, preventing unintentional disengagement of the accessory body.

Abstract: An LED illumination module including an LED lamp with a plurality of light emitting dies on a substrate in combination with an optic having a single focus. The light emitting dies include a single center light emitting die centered on an optical axis and peripheral dies arranged around the center die. The illumination module includes a beam forming optic having a single focus arranged over the LED lamp with the focus on the optical axis of the center die. Light emitted from the center die is substantially collimated by the optic in a focused “spot” emission pattern. Light emitted from the peripheral dies results in a more dispersed or divergent “flood” emission pattern. The center die and peripheral dies are independently controlled and the power delivered to the dies can be varied independently to generate different light emission patterns using the same optic.

Abstract: An LED illumination module including an LED lamp with a plurality of light emitting dies on a substrate in combination with an optic having a single focus. The light emitting dies include a single center light emitting die centered on an optical axis and peripheral dies arranged around the center die. The illumination module includes a beam forming optic having a single focus arranged over the LED lamp with the focus on the optical axis of the center die. Light emitted from the center die is substantially collimated by the optic in a focused “spot” emission pattern. Light emitted from the peripheral dies results in a more dispersed or divergent “flood” emission pattern. The center die and peripheral dies are independently controlled and the power delivered to the dies can be varied independently to generate different light emission patterns using the same optic.

Abstract: A beam forming optic for use with an LED having an optical axis. The beam forming optic includes a first light entry surface cooperating with a first light emission surface and a second light entry surface cooperating with an internal reflecting surface and a second light emission surface to redirect a portion of the light emitted by the LED divergent from the optical axis into a direction substantially parallel with the optical axis. A polygonal periphery extends from the internal reflecting surface to the second light emission surface. A void is defined by a lateral channel and a longitudinal gap extending from the second light emission surface towards the first light emission surface. A portion of the light emitted from the LED passes through the void.

Abstract: An asymmetrical optical assembly employs reflecting surfaces and a lens to combine the light from a plurality of LED lamps into an illumination pattern useful in a floodlight or work light. The reflecting surfaces and lens optical element are not symmetrical with respect to a plane bisecting the optical assembly and including the optical axes of the LED light sources. Some light from the LED light sources is redirected from its emitted trajectory into the desired illumination pattern, while a significant portion of the light from the LED light sources is permitted to exit the optical assembly without redirection. Minimizing the number of optical elements employed and the redirection of light enhances the efficiency of the resulting light assembly.

Abstract: A self-assembling network is configured to automatically and dynamically connect devices used in operations carried out on or near roads bearing vehicle and pedestrian traffic. An automatic, ad hoc network connecting existing and new devices can be used to enhance safety by gathering and exchanging safety critical information. In some cases, existing equipment can be augmented with a network controller and radio frequency communications to permit the devices to join a wireless local network and exchange information over the network. New devices, including wearable devices, can be configured to act as nodes on the wireless local network. Establishing the relative position of vehicles, sensors, wearables, and other nodes on the disclosed ad hoc wireless network allows the coordination of functions based on position.

Abstract: A self-assembling network is configured to automatically and dynamically connect devices used in operations carried out on or near roads bearing vehicle and pedestrian traffic. An automatic, ad hoc network connecting existing and new devices can be used to enhance safety by gathering and exchanging safety critical information. In some cases, existing equipment can be augmented with a network controller and radio frequency communications to permit the devices to join a wireless local network and exchange information over the network. New devices, including wearable devices, can be configured to act as nodes on the wireless local network. Establishing the relative position of vehicles, sensors, wearables, and other nodes on the disclosed ad hoc wireless network allows the coordination of functions based on position.

Abstract: A compact optical assembly includes a linear array of LEDs and a plurality of reflectors. The reflectors include two concentric reflecting surfaces that surround the LED light sources. The inner reflecting surface reflects the majority of the light emitted from the LED light source and the outer reflecting surface reflects light emitted through longitudinal channels in the inner reflecting surface. The concentric reflecting surfaces cooperate to create a wide-angle beam of light with a desired dispersion pattern.

Abstract: A compact optical assembly includes a linear array of LEDs, a plurality of reflectors, a plurality of lenses, and a cover. The reflectors include two reflecting surfaces that surround the LED light sources. One of the reflecting surfaces is defined by an arc of an ellipse that narrows into a throat in the axial direction away from the LED light source and cooperates with the other reflecting surface and the lens to create a collimated beam of light.

Abstract: An LED optical assembly includes an optic having first and second light entry surfaces configured to cooperate respectively with a first light emission surface and an internal reflective surface to redirect substantially all light emitted from an LED into a direction substantially parallel with the optical axis. A polygonal periphery extends from the internal reflecting surface to a second light emission surface. Substantially all of the light emitted from the LED incident on the second light entry surface is incident on the internal reflecting surface. The first light entry surface and the second light entry surface cooperate to prevent the light emitted from the LED from contacting the polygonal periphery.