A light emitting arrangement comprising two light emitting elements (32, 32a) arranged along a longitudinal direction of the light emitting arrangement, and at least one light guide (34) each partly covering the light emitting surface of a first of the light emitting elements and having an entrance surface (35) arranged to receive incident light from the first light emitting element (32) and an exit surface (36) arranged to emit at least a portion of the incident light received by the entrance surface. The light guide is arranged such that the exit surface (36) is located between the first light emitting element (32) and a second light emitting element (32a) and is oriented to emit light in the general lighting direction. The light guide will distribute light emitted by the first light emitting element to more than one location, as if it was emitted of several weaker light emitting elements.

In one embodiment, a light guide includes an emitter and a light guide body optically coupled to the emitter. The light guide body may define a cylindrical body that tapers along an angled plane from a top end towards a bottom end. The bottom end may define a light entrance to the light guide body.

A head mounted or helmet mounted display (HMD), head up display (HUD, or collimated virtual window can be used in various applications including but not limited to avionic applications. The HMD, HUD, or collimated virtual window can include a cylindrical, elliptical, or curved substrate waveguide combiner. The cylindrical or curved substrate waveguide combiner can be used with a projector which provides pre-aberrated light. The cylindrical substrate waveguide combiner provides collimated light to a user with reduced wavefront errors.

The present invention provides a display device having a direct-lit type light guide plate with a curved surface, including a light guide plate with a curved surface. The curved surface of the light guide plate with a curved surface is formed by a plurality of strip-shaped sections connected in parallel with each other. A strip-shaped groove parallel and connected to the strip-shaped sections is formed between each two of the strip-shaped sections. In addition, a plurality of direct-type light sources are included, the direct-type light sources arranged in more than one row, and each row of the direct type lights corresponds to each of the strip-shaped grooves.

A head worn display for displaying a displayed image overlaid onto a see-through view of a surrounding environment that includes multiply folded optics, includes a solid prism with at least one optically powered surface and a planar surface that provides a first internal fold of an optical axis of an image light associated with the displayed image, a combiner that provides a second fold the optical axis associated with the image light and wherein a flat plate reflector is bonded to the planar surface of the solid prism to provide a flat reflective surface to the solid prism.

A lumen wand includes a wand portion formed of a transparent or semi-transparent material having a paddle-like shape with a thickness, a length, and a width. The thickness is substantially less than at least the length. A grip is coupled to one end of the wand portion. An illumination element is configured to emit light into a proximal edge of the wand portion at the one end. The emitted light is propagated by the wand portion such that light is emitted from surfaces of the wand portion other than the proximal edge.

Lighting modules and lighting systems containing one or more lighting modules, and associated methods, are provided that receive light from one or more light sources for projecting it to a target surface, e.g., in a uniform, patterned, or other controlled manner. In various embodiments, the lighting modules and lighting systems can be used to mix the light generated by one or more sources.

An apparatus for providing a light output to an optical guide for illumination of an imaged object including a plurality of solid state light-emitting sources each of which are independently powered and independently controlled, each light-emitting source emitting light at a wavelength which is different from the wavelength emitted by the other light-emitting sources. The apparatus also includes a heat sink configured to thermally couple the plurality of solid state light-emitting sources and provide conduction of heat generated by the plurality of solid state light-emitting sources. The apparatus further includes an optical elements to collect, collimate, and combine the emissions from the plurality of solid state light-emitting sources into a combined beam of light to be optically coupled to the light guide.

A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light, and can also be used to create a particular pattern of the extracted light. Such shapes include linear wedges and twisted wedges. Optical films can be included on the light input and output surfaces of the lightguide.

A circuit module is provided, including: a substrate, having a PCI-E or PCI strip, the PCI-E or PCI strip for being inserted into and electrically connected with a PCI-E or PCI slot; at least one LED, disposed at a side of the substrate opposite to the PCI-E or PCI strip, electrically connected with the PCI-E or PCI strip; a light guide member, being pervious to light, at least corresponding to the at least one LED.