Provided is a lighting unit, including: a support substrate; a light guide plate for guiding light generated from a light source; and a first stopper fixed to the support substrate and configured to support the light guide plate.

To provide a wearable display by which the positional accuracy between optical components when assembled can be improved, a manufacturing method therefor, and a casing for a wearable display. The wearable display includes a first optical section, a main body, and a jig receiver. The first optical section is configured to be capable of emitting light. The main body includes a second optical section that is connected to the first optical section and capable of outwardly emitting the light as image light, and a casing that supports the second optical section. The jig receiver includes a first guide that supports a first protrusion of a jig, a second guide that supports a second protrusion of the jig, and a third guide that supports a third protrusion of the jig. The jig receiver is provided in the casing such that at least two of the first, second, and third guides are spaced apart from each other in the first axis direction and at least two of the first, second, and third guides are spaced apart from each other in the third axis direction.

The invention provides a lighting unit (100) comprising a housing (120) including a light source (110). The light source (110) is configured to provide light source light (111) through a light exit part (121) of the housing (120). The lighting unit (100) further comprises a light interception part (130) configured to intercept part of the light source light (111) as intercepted light source light (112), and a luminescent material (140) configured to convert at least part of the intercepted light source light (112) into luminescent material light (141). The housing (120) further comprises a light emitting part (150), configured to allow the luminescent material light (141) escape from the housing (120).

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.

Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.

A ceiling fan is provided. The ceiling fan includes one or more fan blades. The ceiling fan further includes a motor. The motor is operatively coupled to the one or more fan blades. The motor is configured to drive rotation of the one or more fan blades. The ceiling fan further includes a light kit. The light kit includes a panel. The panel has an edge extending between a top surface of the panel and a bottom surface of the panel. The light kit further includes at least one light source positioned to illuminate the edge.

A multifocal ophthalmic spectacle lens (10) capable of correcting a wearer's ophthalmic vision and having a back surface (BS) and a front surface (FS), said lens comprising a light guide optical element arranged to output a supplementary image (SI) to the wearer through an exit surface (ES) of said light guide optical element, where the exit surface (ES), the back surface (BS) and an optical material located between said exit surface (ES) and said back surface (BS) form an optical device (OD) and wherein said optical device (OD) comprises an area of stabilized optical power.

A system includes a laser system having a master oscillator and a planar waveguide (PWG) amplifier having one or more laser diode pump arrays, a PWG pumphead, input optics, and output optics. The PWG pumphead is configured to receive a low-power optical beam from the master oscillator and generate a high-power optical beam. The PWG pumphead includes a laser gain medium, a cartridge, and a pumphead housing. The cartridge is configured to receive and retain the laser gain medium, and the cartridge includes one or more cooling channels configured to transport coolant in order to cool the laser gain medium. The pumphead housing is configured to receive and retain the cartridge, where the cartridge is removable from the housing.

The present invention relates to a light guide plate including a plurality of cutting areas, the light guide plate capable of solving the problem of brightness degradation between the plurality of cutting areas by attaching a predetermined member, which is reactive to light, to at least one of the inner sides of the cutting areas.

Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.