Abstract: The invention relates to an optical system for generating a two- or three-dimensional image, the system comprising: a projection apparatus for optically transmitting image information to at least one user; an eye detection apparatus; and an imaging apparatus for imaging the image information of the projection device, so that the user can perceive said image information. The imaging apparatus comprises at least one optical hologram set, at least one of which sets is designed to be angle-amplifying.

Abstract: The invention relates to an optical system for generating a two- or three-dimensional image, the system comprising: a projection apparatus for optically transmitting image information to at least one user; an eye detection apparatus; and an imaging apparatus for imaging the image information of the projection device, so that the user can perceive said image information. The imaging apparatus comprises at least one optical hologram set, at least one of which sets is designed to be angle-amplifying.

Abstract: Low coherence interferometer apparatus for investigation of a sample (15), in particular for multi-dimensional imaging, having an interferometer configuration (2) comprising a low coherence light source, a probe head (9) having a light exit opening (16) for irradiating light into the sample, an optical coupler, a reference reflector and a detector (13). The optical paths between the elements of the interferometer configuration (2) form interferometer arms. The optical coupler and the reference arm of the interferometer configuration (2) are integrated into a common optical chip (28). In addition to the reference reflector (11), the reference arm comprises a deflection reflector (33) formed on an end surface (35) of the optical chip (28) in such a manner that the reference light is cross-coupled between a first light guide (10a) forming a first portion of the reference arm (10) and a second light guide (10b) forming a second portion of the reference arm (10).

Abstract: Low coherence interferometer apparatus for investigation of a sample (15), in particular for multidimensional imaging, having an interferometer configuration (2) comprising a low coherence light source, a probe head (9) having a light exit opening (16) for irradiating light into the sample, an optical coupler, a reference reflector and a detector (13). The optical paths between the elements of the interferometer configuration (2) form interferometer arms. The optical coupler and the reference arm of the interferometer configuration (2) are integrated into a common optical chip (28). In addition to the reference reflector (11), the reference arm comprises a deflection reflector (33) formed on an end surface (35) of the optical chip (28) in such a manner that the reference light is cross-coupled between a first light guide (10a) forming a first portion of the reference arm (10) and a second light guide (10b) forming a second portion of the reference arm (10).

Abstract: Method for determining an analyte in a scattering matrix. In a detection step detection measurements are made in which light is irradiated into the matrix as primary light and light leaving the scattering matrix is detected as secondary light, in order to determine as a measurement quantity a measurable physical property of the light which is variable due to the interaction of the light with the matrix. Information on the presence of the analyte in the matrix is determined in an evaluation step. The determination of optically weakly absorbing analytes against a strongly absorbing interference background is improved by the use of two selection methods for the depth selective detection of the secondary light in combination with one another.

Abstract: The invention concerns a method for investigating a scattering medium, especially a biological matrix, with intensity-modulated light.

Abstract: A method for the analytical determination of the glucose concentration in a biological sample. In a detection step, light is irradiated into the sample and the light emerging therefrom after interaction with the sample emerges therefrom is detected in order to measure a physical light property affected by said interaction. The glucose concentration is determined from this measurement in an evaluation step. To provide a method for determining glucose in reagent-free and non-invasive manner, the invention proposes that a portion of the light emitted by the light source be guided along a reference light path of defined optical path length to the photodetector, that the total measuring light path also has a defined optical length and that the measuring light path after it has traversed the sample is so combined with the reference light path that the measuring light and the reference light interfere with each other.