Abstract: The invention relates to a projector (1) and to a projection optics (30) for a projector (1). In order to be able to operate the projector (1) as energy-efficiently as possible, it is provided, according to the invention, that the projector (1) comprises a beam splitter device (6, 6?) having a polarization beam splitter (7, 15), wherein the polarization beam splitter (7) is arranged at an object-side end (39) of the projection optics (30).

Abstract: A laser source is described. The laser source is configured for providing collimated laser beams arranged in a ring-shape for exiting a phosphor. The laser source has laser diodes arranged in a ring-shaped manner around a symmetry axis. Parallel parts of the laser beams form a hollow tube. Further, a light source is described. The light source has a phosphor, an optical element and a light source configured for providing collimated laser beams arranged in a ring-shape for exiting the phosphor. The light source is arranged such that the collimated laser beams are directed opposite to the collimated luminance.

Abstract: Described is a detection device, a head-up display (HUD) and a method for operating a HUD. The detection device, the HUD and the method for operating an HUD are designed to protect an imager of the HUD from damage by incident radiation and to avoid or at least significantly reduce a glare effect of the HUD. The detection device comprises an optical element with a reflecting area and a passband, where the optical transparency of the passband is greater than the optical transparency of the reflecting area. The passband is completely enclosed by the reflecting area, the surface of the passband is smaller than the surface of the reflecting area, and the detection device is optically coupled to the passband. The detection device determines the intensity of a radiation incident on the detection device.

Abstract: The invention relates to a projector (1) and to a projection optics (30) for a projector (1). In order to be able to operate the projector (1) as energy-efficiently as possible, it is provided, according to the invention, that the projector (1) comprises a beam splitter device (6, 6?) having a polarization beam splitter (7, 15), wherein the polarization beam splitter (7) is arranged at an object-side end (39) of the projection optics (30).

Abstract: The disclosure relates to a method and a determination device for determining a surface shape of an object. In order to build the determination device as compact as possible, according to the invention, the object is illuminated by an illuminating line and illuminating light reflected by the object is directed to a sensor line of the determination device.

Abstract: Described is a lighting device for detecting three-dimensional structures, in particular for a gesture recognition apparatus, as well as a gesture recognition apparatus having a lighting device. In order to be able to compactly construct the lighting device, the lighting device includes a prism through which illumination light (L) passes twice in order to illuminate a gesture.

Abstract: Described is an optical system and method for operating an HUD. The optical system includes an imaging system that generates optical radiation based on image information, a display system that projects the optical radiation, a deflection device that deflects the projected optical radiation, and at least one optically transparent pane-shaped element that at least partially reflects the deflected optical radiation. The deflection device guides the projected optical radiation onto the pane-shaped element, the optical radiation hitting the pane-shaped element at an angle. The imaging system, the display system, the deflection device and the pane-shaped element are arranged to generate a virtual image of optical radiation containing the image information. The optical system includes first and second edge points of the pane-shaped element. The first edge point has a minimal distance (dmin(1)) to the deflection device and the second edge point has a minimal distance (dmin(2)) to the imaging system.

Abstract: Described is an optical element and a device for generating an optical line pattern. The optical element and a device having such an optical element comprise a first optical surface and a second optical surface which comprises a plurality of cylinder-shaped partial areas which extend along a first direction (X) and are stacked along a second direction (Y). The second direction (Y) extends vertically to the first direction (X), and an optical axis (Z) extends vertically to the first direction (X) and vertically to the second direction (Y), where at least 60% of the surface of the cylinder-shaped partial areas is oriented in such a way that a normal vector arranged on the surface extends to a side facing away from the optical axis (Z) and to a side facing away from the first optical surface.

Abstract: Described is a projection system for imaging an object into an image plane, including at least a first assembly group, a second assembly group and a third assembly group. Each of the assembly groups has at least one connected common optical axis (O1, O2, O3). A first assembly group comprises the object and a second assembly group comprises an optical component. At least two of the assembly groups are arranged tilted and/or staggered relative to each other. The optical axis (O3) of the image-side assembly group is inclined relative to the optical axis (OE) of the image (E) in the image plane. This provides a projection system from the imager to the intermediate image for a head-up display (HUD) with a tilted intermediate image plane with significantly reduced image field distortion and a dimensioning of the imaging optics adapted to the image field size for light weight and low costs.

Abstract: Described is an arrangement for the transformation of laser radiation. A projection system for generating spatially modulated laser radiation includes an optical arrangement for transforming laser radiation, a field lens, a spatial light modulator and a projection arrangement. By means of the optical arrangement, incidental laser radiation in a first direction (E) is reflected on an aspherically curved, reflective surface in a second direction (R), where in a plane perpendicular to the first direction (E) the laser radiation has an inhomogeneous beam profile (G1, G2) with a first beam axis (A) and a second beams axis (B) perpendicular to the latter, and the aspherical curvature is designed, during the reflection on the reflective surface, to transform the inhomogeneous beam profile of the laser radiation for the first beam axis (A) and/or the second beam axis (B) respectively into a homogenous top-hat beam profile (H).

Abstract: Described herein is a lens having at least one object-side and at least one image-side refractive surface. In order to determine a light intensity of an effective luminous flux propagating through the lens without the need for additional components for coupling light out, the lens includes a reflective surface arranged between the object-side and the image-side refractive surfaces and aligned obliquely to the optical axis.

Abstract: The invention relates to a headlight system with a projector (1) comprising at least one image generator and a method (20) for projecting image contents. In order to adjust positions of image contents of the projected partial images to positions or movements of objects and/or living things, it is envisaged according to the invention that the position of the image contents be displaced on at least one of the image generators.

Abstract: An optical arrangement including an optical component with a basic body and at least one retaining element, which is designed as an integral element of the optical component or which is actively connected to the optical component is disclosed. The retaining element is affixed on a first contact position of the basic body and a carrier, on which the optical component is supported by means of the retaining element. The retaining element is affixed on a second contact position of the carrier and is arranged in such a manner that it can be pivoted between a first contact position and a second contact position. The arrangement is conducted in such a manner that during a thermal expansion of the basic body in the direction of the carrier and/or with a thermal expansion of the retaining element a movement of the first contact position along the optical axis is generated.

Abstract: A laser source is described. The laser source is configured for providing collimated laser beams arranged in a ring-shape for exiting a phosphor. The laser source has laser diodes arranged in a ring-shaped manner around a symmetry axis. Parallel parts of the laser beams form a hollow tube. Further, a light source is described. The light source has a phosphor, an optical element and a light source configured for providing collimated laser beams arranged in a ring-shape for exiting the phosphor. The light source is arranged such that the collimated laser beams are directed opposite to the collimated luminance.