An optical transformer includes a plurality of light emitters, a plurality of photovoltaic cells positioned to receive light from at least a first subset of the plurality of light emitters, the plurality of photovoltaic cells including at least a first photovoltaic cell and a second photovoltaic cell, and one or more optically triggered switches positioned to receive light from at least a second subset of the plurality of light emitters, the one or more optically triggered switches including at least a first optically triggered switch electrically coupled to the first photovoltaic cell and the second photovoltaic cell. A method of operating the optical transformer is also described.

The present disclosure relates to an asymmetric illumination lens and an illumination system implementing at least one such lens, for example for illuminating a stadium play field.

A light-emitting diode (LED) includes s a substrate, a LED chip, and an optical lens. The LED chip is fixedly mounted to the substrate for emitting a light beam. The optical lens is mounted to the substrate and covers the LED chip. The optical lens has a light exit surface, which directs the light beam from the LED chip to travel in a direction along an optical axis to form a non-symmetric light shape. Also disclosed is a surveillance camera device that uses the LED. As such, the drawback of a conventional surveillance camera being incapable of acquiring an excellent image due to light source being overly concentrated can be eliminated.

Various embodiments may relate to a lens for an illumination device. The lens includes a bottom wall, a top wall, and a circumferential wall. The circumferential wall connects the bottom wall and the top wall. A plurality of regions of the bottom wall respectively arch towards the top wall to define at least one first accommodation cavity having an inner wall as a first incident surface, and at least one second accommodation cavity having an inner wall as a second incident surface. The first and second incident surfaces are designed as different curved surfaces for receiving first incident light and second incident light, respectively. Various embodiments further relate to an illumination device including the lens.

A vehicle light includes a lighting unit with multiple light-emitting elements (LEEs), one or more couplers, a light guide and an extractor. The lighting unit has a curved elongate extension. Each of the couplers has an input aperture coupled with one or more of the LEEs and an exit aperture coupled with a first edge of the light guide and is configured to couple light from the LEEs into the light guide. The light guide is configured to propagate light via total internal reflection to a second edge of the light guide. The extractor has an input aperture coupled with the second edge of the light guide and an exit aperture configured to emit light into an ambient environment.

The invention relates to headlamps for vehicles comprising a number of semiconductor-based light sources being arranged on a substrate, and comprising an optical unit having at least one lens with a lens face for the generation of a given light distribution, wherein the lens face can be calculated by means of a lens equation, which is formed by means of a conic section equation completed by a deformation parameter, so that the lens face is determined with a deviation from a conic section shape, wherein a first deformation parameter for the change of the lens face according to differing degrees of shape change in the direction of the optical axis and vertically to the optical axis are given on one hand and that a second deformation parameter for the change of the lens face according to identical degrees of shape change in the direction of the optical axis and vertically to the optical axis are given on the other hand.

Light fixtures having light bar elements therein. In order to mimic the size and appearance of fluorescent bulbs in existing troffer-style and surface-mount fixtures, LEDs are may be arranged on light bars with integrated lenses to both diffuse the light and shape the output beam. One or more LEDs can be mounted, sometimes in clusters, along the length of a base of the light bar which can then be inserted into a fixture. An elongated lens is mounted to the base over the LEDs so that light emitted from the LEDs interacts with the lens before it escapes the fixture. These elongated lenses may be extruded from a diffusive material, for example, and can be shaped in various ways. For example, the lenses may be shaped to disperse more light to the sides, i.e., in a direction away from a normal axis that is perpendicular to the base.

Disclosed herein are methods, devices, and system for beam forming and beam steering within ultra-wideband, wireless optical communication devices and systems. According to one embodiment, a free space optical (FSO) communication apparatus is disclosed. The FSO communication apparatus includes an array of optical sources wherein each optical source of the array of optical sources is individually controllable and each optical source configured to have a transient response time of less than 500 picoseconds (ps).

An illumination apparatus includes a plurality of LED chips arranged to form an LED array, light from the plurality of LED chips superimpose to project a light intensity distribution projected on the predetermined plane; a pair of lens arrays each including a plurality of lenses and configured to collect light from the LED arrays; a driving unit configured to adjust a distance between the pair of lens arrays and change the light intensity distribution projected on the predetermined plane; and a control unit for individually controlling the output of the first and second LED arrays.

An optical device includes a lower surface that is substantially transparent. The optical device further includes an upper surface disposed opposite the lower surface and having a first specular layer disposed thereon. The optical device further includes a first lateral surface extending between the lower surface and the upper surface and having a second specular layer disposed on at least a portion thereof.