An airport runway approach lighting apparatus is disclosed. According to one embodiment. the airport runway approach light includes a visible light source configured to emit a visible light brain and an infrared light source configured to emit an infrared beam. A first lens is attached to the visible light source to change the visible light beam emitted from the visible light source to a desired visible light beam pattern. The infrared light source includes a plurality of semiconductor laser diodes distributed on a surface of a laser diode chip in an array.

An airport runway approach lighting apparatus is disclosed. According to one embodiment. the airport runway approach light includes a visible light source configured to emit a visible light brain and an infrared light source configured to emit an infrared beam. A first lens is attached to the visible light source to change the visible light beam emitted from the visible light source to a desired visible light beam pattern. The infrared light source includes a plurality of semiconductor laser diodes distributed on a surface of a laser diode chip in an array.

A lighting system is disclosed that includes elongated LED light fixture with one or more master circuit boards configured to power light emitting diodes. The elongated LED light fixtures include modular light boards with arrays of light emitting diodes that interchangeably couple to the matched connectors on the master circuit board. The system further includes elongated LED light fixtures with telescoping end features, fenestrated diffuser optics at ends of the elongated LED fight fixtures and/or pivoting corner features that join sections of the elongated LED light fixtures.

A downlight apparatus includes a driver, a light source, a light holder, a first switch and a second switch. The driver has a power converter and a controller. The light holder is used for fixing the light source. The holder bottom of the light holder defines a light opening. The light source emits a light from the light opening. The light holder is placed in an installation cavity. The rim structure is connected to the holder bottom. The rim structure has a rim edge concealing the installation cavity. The first switch is provided for users to operate to adjust a setting. The second switch is provided for users to operate to adjust the setting. The first switch is concealed in the installation cavity. The second switch is placed on the rim edge exposed outside the installation cavity. The first switch and the second switch are coupled to the controller.

A Light device having built-in digital data means is powered by an unlimited power source for a lamp-holder, LED bulb, or light device connected to unlimited power source by prongs or a base that or conductive wires can be inserted into a socket that would otherwise receiving a bulb. The device may take the form of a web cam having auto tracking added one of plurality functions to make different products and functions and retractable prongs that plug directly into a wall outlet or insert into existing lamp base or incorporate conductive wire to make electric connection at least one of built-in camera, storage unit, wireless kits, Bluetooth kits, motion sensor, light device.

A multi-branch conductive rotary mechanism with low cost includes a main body and a rotating shell configured to axially rotate with respect to the main body. A drive motor and a rotating connector are arranged inside the main body, and the rotating connector is driven by the drive motor to synchronously rotate. The rotating connector is connected to the rotating shell, and the rotating connector is configured to drive the rotating shell to synchronously rotate. The multi-branch conductive rotary mechanism further includes at least one external connector arranged on an outside of the rotating shell, and a projection lamp assembly. The at least one external connector is configured to be connected to external functional components. The projection lamp assembly is arranged on an inside or an outside of the main body.

Disclosed are examples of optical/electrical devices including a variable TIR lens assembly having a transducer, an optical lens and an electrowetting cell coupled to an exterior wall of the lens. The electrowetting cell contains two immiscible liquids having different optical and electrical properties. One liquid has a high index of refraction, and the other liquid has a low index of refraction. At least one liquid is electrically conductive. A signal causes the high index of refraction and the low index of refraction liquids to assume various positions within the electrowetting cell along the exterior wall. The properties of the optical lens, e.g. its total internal reflectivity, change depending upon the position of the respective liquids along the exterior wall. The light characteristics of the assembly change to produce a light beam over a range of light beam outputs or a field of view over a range of fields of view.

Illumination devices are described for illuminating a target area, e.g., floors of a room, using solid-state light sources. In general, an illumination device includes a first light guide extending along a first plane, the first light guide to receive light from first light emitting elements (LEEs) and guide the light in a first direction in the first plane; a second light guide extending along the first plane, the second light guide to receive light from second LEEs and guide the light in a second direction in the first plane opposite to the first direction; a first redirecting optic to receive light from the first light guide and direct the light in first and second angular ranges; and a second redirecting optic to receive light from the second light guide and direct the light in third and fourth angular ranges, where the first, second, third and fourth angular ranges are different.

The present disclosure provides an LED luminaire capable of providing full cutoff illumination in a base configuration, without the addition of reflectors or refractors. The LED luminaire is also interchangeably couplable to one or more different reflectors and refractors. In certain example embodiments, the present disclosure provides a dusk to dawn luminaire operable as a full cutoff luminaire in a base configuration and which is also compatible with an American Nation Standards Institute (ANSI) dusk to dawn reflector/refractor assembly. In an example embodiment, the LED luminaire also includes a housing with a front pivoting door configured to swing away from a mounting structure when opened.

An in-grade light fixture is provided with a corrugated housing design. The corrugated housing design enhances structural integrity and the flow of air within the light fixture to facilitate cooling. The light fixture includes an annular door with slots aligned with the corrugations to facilitate the influx of cool air into the housing and the exhaust of hot air from the housing. The light fixture includes a hot-aiming system that allows a tilt optic to be rotated via magnetic force within the light fixture using an external instrument, such as magnetic wand. The beam direction can be rotated using this hot-aiming system without opening the light fixture.