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 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 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 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: The invention relates to a display arrangement (1) for a motor vehicle, for displaying information for an occupant (12) of the motor vehicle. To be able to display the information as cost-effectively as possible in two display areas (4, 5) of the motor vehicle, the invention provides that the display arrangement (1) has an image splitter (9) for separating at least two juxtaposed image sections (B1, B2) of the image.

Abstract: The optical projection system according to the invention for a display has an imaging display unit, which emits image information at least partly in the form of unpolarized light, and imaging optics, wherein the imaging optics are configured to present a virtual image of image information generated by the display unit in a display area, and wherein the imaging optics are further configured to split the light emitted by the display unit into two partial beam paths each having a different polarization, to rotate the polarization direction of at least one of the two partial beam paths and to subsequently superimpose the two partial beam paths and to present them as a virtual image display in the display area.

Abstract: A projection apparatus includes an image-producing element and projection optics. The image-producing element produces at least one image, and the projection optics has free-form areas for magnifying and reflecting the image toward an viewer for observation. The projection optics includes at least a first mirror and a second mirror, the image is reflected by the first mirror and the second mirror in succession, no deflection mirror is disposed between the viewer and the second mirror, and the first mirror and the second mirror are in the form of a non-rotationally symmetrical system.

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.

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: 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 invention relates to a display arrangement (1) for a motor vehicle, for displaying information for an occupant (12) of the motor vehicle. To be able to display the information as cost-effectively as possible in two display areas (4, 5) of the motor vehicle, the invention provides that the display arrangement (1) has an image splitter (9) for separating at least two juxtaposed image sections (B1, B2) of the image.

Abstract: The invention relates to a microlens arrangement (12) and an illumination device (10) for uniformly illuminating of an area (F), with a light source (11) and a microlens arrangement (12). In order to illuminate the area (F) to be illuminated as homogeneously as possible, the at least one microlens (1) of the microlens arrangement (12) has an entrance face (2) which is shaped such that monochromatic light incident on the microlens (1) and propagating parallel to the optical axis (O) is refracted by the entrance face (2) such that back focal lengths (S1, S2, S3) of the light with the optical axis (O) increase with the height of incidence (E1, E2, E3).

Abstract: A projection apparatus includes an image-producing element and projection optics. The image-producing element produces at least one image, and the projection optics has free-form areas for magnifying and reflecting the image toward an viewer for observation. The projection optics includes at least a first mirror and a second mirror, the image is reflected by the first mirror and the second mirror in succession, no deflection mirror is disposed between the viewer and the second mirror, and the first mirror and the second mirror are in the form of a non-rotationally symmetrical system.

Abstract: The invention relates to a display arrangement (1) for a motor vehicle, for displaying information for an occupant (12) of the motor vehicle. To be able to display the information as cost-effectively as possible in two display areas (4, 5) of the motor vehicle, the invention provides that the display arrangement (1) has an image splitter (9) for separating at least two juxtaposed image sections (B1, B2) of the image.

Abstract: The invention relates to a rear project device, comprising a screen, projection optics, and an image module for generating an image, which is projected from the rear onto the screen by means of the projection optics, so that an observer located in front of the screen can perceive the image projected onto the screen. Furthermore, a method for such a rear projection apparatus is described. To this end, a Fresnel mirror, or an aspherical mirror, is used.

Abstract: A projector for projecting light onto a projection surface includes a first group (1) with a negative meniscus, a second group (2) with positive refractive power, a third group (3) with a single lens, a fourth group (4) with a lens with positive refractive power, and a field lens (5) with positive refractive power, such that the light passes through the projection objective from the fourth to the first group. In order to be provide a high image quality with a small number of optical components and the smallest dimensions, the projector is configured so the common focal width of the fourth group (4) and the field lens (5) is smaller than twice the image circle diameter (9) of the projection objective and the maximum free diameter (8) is smaller than the overall focal width, and in particular smaller than 0.8 times the overall focal width of the projection objective.

Abstract: Device (1) for projecting an image into a display area (2), with an imager (31) generating the picture, a first projection device (30) for generating a real intermediate image (R), a screen (5) onto which the first projection device (32) projects the intermediate image (R) and to a second projection device (9) projecting the intermediate image (R) into the display area (2). In order to project the image with the least possible loss of brightness, the invention provides that main beam directions (H, H?, H?) of the screen (5) point into an entrance pupil (20) of the second projection device (9).

Abstract: The invention relates to a display arrangement (1) for a motor vehicle, for displaying information for an occupant (12) of the motor vehicle. To be able to display the information as cost-effectively as possible in two display areas (4, 5) of the motor vehicle, the invention provides that the display arrangement (1) has an image splitter (9) for separating at least two juxtaposed image sections (B1, B2) of the image.