Optics (20) for an illumination device (1), as well as an illumination device (1) comprising such optics. The optics comprise at least one lens (30) with a light entry surface (31) and a light exit surface (32). A stepped lens structure (321), such as a Fresnel structure, is formed on the light exit surface. A recurring surface structure, such as periodically arranged prominences (311) and deepenings (321), are formed on the light entry surface (31).

A projection device includes: a plurality of light sources arranged in a first direction; a spatial modulation element that modulates incident light into image information and emits the image information; a lens that changes an optical path of light emitted from each of the plurality of light sources such that the light emitted from each light source reaches substantially the same region of an incident surface of the spatial modulation element; and a first reflective optical member that deflects the light emitted from the lens toward the spatial modulation element, the first reflective optical member having a shape that reflects light emitted from the lens so as to be incident on an arbitrary point on the incident surface of the spatial modulation element at a predetermined reference incident angle.

A component for a vehicle interior may comprise a housing; a cover structure comprising a cover surface; and a user interface at the cover surface comprising a light display. The light display may comprise a light guide comprising a projection. The cover structure may comprise a cover base and a cover layer. The cover layer may be molded on the cover base. The cover base may comprise the light guide. The cover layer may comprise an aperture. The projection may extend into the aperture. The cover base may comprise an aperture, recess, notch and/or indentation. The cover layer may comprise a generally opaque material preventing visibility of a recess in the cover base. The cover base may comprise a different color and/or softness than the cover layer. The cover structure may comprise apertures and/or recesses for the light guide.

Optics (20) for an illumination device (1), as well as an illumination device (1) comprising such optics. The optics comprise at least one lens (30) with a light entry surface (31) and a light exit surface (32). A stepped lens structure (321), such as a Fresnel structure, is formed on the light exit surface. A recurring surface structure, such as periodically arranged prominences (311) and deepenings (321), are formed on the light entry surface (31).

A light source module includes a ring light guide, at least one light source, a reflector, and a diffuser. The ring light guide includes a ring body and at least one light incident portion. The ring light guide has a light exit surface and a bottom surface, which are two opposite ring surfaces of the ring body. The ring body has a plurality of optical structures disposed along the ring body. The at least one light incident portion is disposed on the ring body and protrudes from a lateral side of the ring body. The light incident portion has a light incident surface, wherein a plane where the light incident surface lies crosses a plane where the light exit surface lies.

A display device includes light sources that emit light, a display panel that displays an image, and a light guide panel that guides the light emitted from the light sources to the display panel. The light guide panel includes an incident surface facing the light sources, an emission surface facing the display panel, a first reflective surface facing the incident surface, and a second reflective surface facing the emission surface. The first reflective surface has a concave shape that reflects light so that the reflected light becomes closer to parallel light when viewed in a facing direction of the display panel and the light guide panel in the light guide panel, is tilted at an angle larger than 0 degrees with respect to the incident surface, and intersects the second reflective surface at an angle smaller than 90 degrees.

An illumination system for a steering wheel assembly of a vehicle including a housing coupled to a rim of the steering wheel assembly. At least one visible light source is disposed adjacent the housing and emitting visible light through an opening in the housing. A lens is provided covering the opening in the housing such that an inner surface of the lens is disposed adjacent the opening in the housing. A cover material covers the outer surface of the lens and at least a portion of the rim, and includes translucent and/or transparent portions such that the lens is not visible through the cover material. The visible light from the visible light source passes through the transparent and/or translucent portions of the cover material.

Provided is a head-up display device wherein in a state where a light-receiving unit is connected to a control substrate, a lid can be easily mounted to a case. Housed in a case of a head-up display device are a substrate for controlling a projector and a reflection unit for reflecting light projected thereon by the projector. The reflection unit is configured to have a reflecting mirror that is held by a holder, while the substrate is connected, via a connection member, with a light-receiving unit for detecting light from outside. The light-receiving unit is configured to have a light-receiving sensor that is held by a sensor holding part. The sensor holding part for holding the light-receiving sensor is held by the holder.

A display device and a display control method are provided, the display device including: a reflective screen; and a display assembly comprising: a light source, configured to emit light beams; a light modulator provided in a direction of propagation of the light beams and a reflective display located downstream the light modulator in an optical path of the display device, the light modulator is configured to modulate the light beams alternately at two different deflection angles respectively such that the light beams travel through the light modulator and then are incident alternately on the reflective display in a first direction and a second direction, and the reflective display is configured to generate a first image in response to the light beam being incident on the reflective display in the first direction and to generate a second image in response to the light beam being incident on the reflective display in the second direction; and a relay optical device, which is located downstream the reflective display in the optical path of the display device and configured to project the light beam carried with the first image and the beam carried with the second image onto two positions on the reflective screen different from each other respectively in such way that virtual images of the first image and the second image are generated respectively at different distances from the reflective screen, at a side of reflective screen opposite to a side from which the virtual images are observed.

A gauge assembly includes a dial face with a scale indicative of a vehicle operating parameter. The dial face includes an opening proximate the scale and an illuminable tick mark that extends through the opening in the dial face with the tick mark being larger than the opening.