Abstract: A device for stereoscopic examination of an eye, in particular a slit-lamp microscope, comprises, according to a first aspect of the invention, a lens for generating two images of the eye, wherein the device comprises at least one image sensor for electronic recording of the two images. According to a second aspect of the invention, the device for examination of an eye, in particular the slit-lamp microscope, comprises a lens for generating one image, wherein it comprises an image sensor for electronic recording of one image, and a viewing unit with an image-reproducing unit for presenting the image, and an eyepiece for viewing the image.

Abstract: A device for stereoscopic examination of an eye, in particular a slit-lamp microscope, comprises, according to a first aspect of the invention, a lens for generating two images of the eye, wherein the device comprises at least one image sensor for electronic recording of the two images. According to a second aspect of the invention, the device for examination of an eye, in particular the slit-lamp microscope, comprises a lens for generating one image, wherein it comprises an image sensor for electronic recording of one image, and a viewing unit with an image-reproducing unit for presenting the image, and an eyepiece for viewing the image.

Abstract: An illumination arrangement for a projection system is proposed including a light source device and a light collecting, integrating and redirecting device. The light source device comprises at least one solid state light source device. The light collecting, integrating and redirecting device comprises at least one light integrating device, which is adapted to directly receive and to integrate at least a part of primary illumination light generated by and emitted from at least one associated of at least one sold state light source device.

Abstract: An illumination arrangement (1) for a projection system is proposed comprising a light source device (10) and a light collecting, integrating and redirecting device (20). The light source device (10) comprises at least one solid state light source device (30). The light collecting, integrating and redirecting device (20) comprises at least one light integrating device (50), which is adapted to directly receive and to integrate at least a part of primary illumination light (L1) generated by and emitted from at least one associated of at least one solid state light source device (30).

Abstract: An illumination arrangement for a projection system is proposed including a light source device and a light collecting, integrating and redirecting device. The light source device comprises at least one solid state light source device. The light collecting, integrating and redirecting device comprises at least one light integrating device, which is adapted to directly receive and to integrate at least a part of primary illumination light generated by and emitted from at least one associated of at least one sold state light source device.

Abstract: An optical device for backlighting a liquid crystal display. The optical device has an optical element. The optical element includes a material body and at least one recess. The recess is formed in the material body and is configured to determine the light distribution of light to be directed towards the liquid crystal display.

Abstract: A micro electromechanical shutter device and a pixel arrangement in which respective shutter elements are configured to controllably take a first geometrical state open and a second geometrical state closed by different degrees of actuation, and wherein the first geometrical state of the shutter element is configured to correspond to a non-actuated rest state of the shutter element.

Abstract: An optical device (1) for backlighting a liquid crystal display (50) is provided. The optical device (1) comprises an optical element (10). The optical element (10) includes a material body (10?) and at least one recess (12). The recess is formed in said material body (10) and configured in order to determine the light distribution of light to be directed towards the liquid crystal display (50).

Abstract: An image generation unit (10) is proposed comprising a first, a second, and a third light source unit (S1, S2, S3) which are adapted in order to generate an emit respective first, second, and third primary illumination light components (Lr1, Lg1, Lb1).

Abstract: It is proposed to provide in an illumination unit (10) a light combining section (15) being adapted for receiving and combining first and second primary illumination light (L11, L12) or a derivative thereof and a light collecting, integrating and redirecting section (20) being adapted for receiving, collecting, integrating and redirecting first and second primary illumination light (L11, L12) or a derivative thereof, wherein said light combining section (15) and said light collecting, integrating and redirecting section (20) are at least partly arranged in a spatially mingled manner with respect to each other. Thereby from said first and second primary illumination light (L11, L12) collected, integrated and redirected combined primary illumination light (CL1) can be obtained and emitted as secondary illumination light (L2) having controlled spectral properties and an essentially uniformized spatial intensity distribution.

Abstract: An illumination unit is suggested in which at least one light selecting element (20) is disposed between and assigned to a primary illumination light providing portion (10) and a secondary illumination light providing portion (30). Said light selecting element (20) is simultaneously adapted to select one or a plurality of predefined spectral components (B) or of one and/or a plurality of predefined polarization components from incident primary illumination light (L1) and to thereby generate secondary illumination light (L2) to be irradiated.

Abstract: The invention relates to a device (1.3) for examining and/or treating an eye (15) Said device comprises a base body (2.3) and an attachment body (3.3), which can be combined and applied to the eye, a gel-type liquid (14) being introduced between the two bodies so that the indices can be matched. To allow air or excess liquid between the two bodies to escape, the interior of the attachment body is provided with a large number of protuberances (13.1), which ensure a minimum distance is maintained between the two bodies. As only the attachment body comes into contact with the eye or the patient during examination/treatment and not the base body, only the attachment body must be manufactured so that it can be sterilised, a single sterilisation that is integrated into the production process being sufficient. The attachment body can be produced from cheap maaterials in a simple manner as a disposable item. The base body on the other hand only requires disinfection.

Abstract: Solid optical guide (10) with microprisms (20) of refractive index n, for uniformly illuminating a surface (4) in grazing incidence at an angle &thgr;1 in which a plane angle &dgr; of the cross-section develops with respect to the surface (4) a substantially perpendicular face (15) and a substantially parallel face (14), in which microprisms (20) are structured in hollows, one facet (21) of said microprisms oriented towards the face (15) has its edge (22) formed with the parallel face (14) inclined at an angle {right arrow over (&agr;)} with respect to the axis of the guide and its edge (23) formed with the perpendicular face (15) inclined at an angle {right arrow over (&ggr;)} with respect to the perpendicular to the surface to be illuminated, the values {right arrow over (&agr;)} and {right arrow over (&ggr;)} being determined from characteristics n, &thgr;1 and &dgr; of the guide.

Abstract: Illumination device for the dial (4) of a display device formed by a case (1) sealed by a crystal (8) arranged above the dial (4) and held by a fitting ring (9), said device including at least one light source (13, 33, 35, 43, 53) arranged in at least one recess arranged in at least one light guide (20, 30, 40, 50) positioned at the periphery of the dial (4), said guide having a polished internal surface (21) oriented towards the dial (4) and an external surface (22) held in a space delimited by the dial (4), the crystal (8) and the inner wall (10) of the fitting ring (9), characterised in that all or part of said external surface (22) of the guide is arranged to allow a progressive increase along the guide (20, 30, 40, 50) of the quantity of light diffused by said external wall gradually as one moves away from one of the light sources (13, 33, 35, 43, 53).