A luminaire includes a housing (102) with an inner cavity a light source (122) mounted to an inner top surface of the housing. The luminaire also includes a door frame (104), wherein the door frame includes a first side rail (108), a second side rail (109), a third side rail (107), and a fourth side rail (110). The four side rails of the door frame define a light emitting opening for the luminaire. A film stack (116) is supported by the door frame and placed in the light emitting opening so that light from the light source passes through the film stack as it is emitted through the light emitting opening. The film stack (116) includes a diffuser film (129) and a photopolymer film (127). The photopolymer film (127) is embossed with optical structures that create a holographic pattern that appears to be three-dimensional.

Disclosed is a lamp for a vehicle, the lamp including: a light source configured to emit light; and a multi facet lens (MFL) which is provided in front of the light source, and includes a plurality of facets and stepped portions formed in boundary regions between the plurality of facets. At least some of exit surfaces of the plurality of facets have a shape of a portion of an aspherical lens or an anamorphic lens.

A lamp for a vehicle includes a light emitting unit for generating light, and an optical unit for forming a predetermined light irradiation pattern by outputting the light incident from the light emitting unit through a plurality of optical modules each including an incident lens and an output lens. The light emitting unit includes a light source unit, and a plurality of reflectors arranged in a left-right direction to allow the light generated from the light source unit to be reflected to the optical unit, and the optical unit includes a plurality of areas for outputting the light incident from the plurality of reflectors.

A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.

A lighting device for vehicles, in particular a signal light, with a light source for emitting a light beam and an optical unit associated with the light source for producing a predetermined light function, the optical unit having a holographic element and a lens arranged in the main emission direction in front of the holographic element, the holographic element comprising such a diffraction structure that the light beam emitted from the light source onto the holographic element is varied according to a predetermined illumination pattern such that the holographic light beam lights an illumination surface of the lens to generate the light function.

A lamp for a vehicle includes a light emitting unit for generating light, and an optical unit for forming a predetermined light irradiation pattern by outputting the light incident from the light emitting unit through a plurality of optical modules each including an incident lens and an output lens. The light emitting unit includes a light source unit, and a plurality of reflectors arranged in a left-right direction to allow the light generated from the light source unit to be reflected to the optical unit, and the optical unit includes a plurality of areas for outputting the light incident from the plurality of reflectors.

Disclosed is a lamp for a vehicle, the lamp including: a light source configured to emit light; and a multi facet lens (MFL) which is provided in front of the light source, and includes a plurality of facets and stepped portions formed in boundary regions between the plurality of facets. At least some of exit surfaces of the plurality of facets have a shape of a portion of an aspherical lens or an anamorphic lens.

Some examples herein include systems and methods of creating standards of gemstones of various classifications, which may display certain characteristics of the various classifications when excited by ultraviolet radiation and fluoresce in response. In some examples, a set of standards are created using fluorescent material, filters, and a radiation source to compare against a sample gemstone. In some examples, specific Light Emitting Diodes are selected to illuminate the gemstone samples under analysis.

An optical apparatus includes a transparent envelope having opposing first and second faces. An electro-optic material is contained within the transparent envelope and includes molecules oriented in respective predefined directions selected so as to form a geometric-phase structure across an area of the transparent envelope. First and second transparent electrodes are disposed respectively across the first and second faces of the transparent envelope. A controller is coupled to apply a voltage between the first and second transparent electrodes that is sufficient to displace the molecules of the electro-optic material from the predefined directions.

This specification describes an improved automated luminaire including a plurality of light emitting modules, each including a laser module and an optical module, which expands the width of the laser light beam emitted from the laser module.