A measurement device having an axis of rotation, at least one controlled axis, a receptacle for a component to be measured rotationally-drivable around the axis of rotation, and having an optical, contactlessly operating measuring arrangement having a light source, an optics arrangement, and an optical detector, wherein the measuring arrangement is configured for emitting a light beam from the light source along an optical axis in the direction of an object plane of the component, guiding light components having different wavelengths, which were reflected on the object plane, through the optics arrangement in the direction of the optical detector, and wherein the optics arrangement comprises a first partial device and a second partial device, wherein the first partial device is fixedly connected via an optical waveguide to the detector, and wherein the second partial device is removably arranged on the first partial device.

An electro-optical stimulation and recording system is disclosed, including a substrate and a plurality of wells coupled to the substrate. The system also includes at least one electrode set disposed proximate a respective one of the plurality of wells, wherein the electrode set comprises at least one electrode configured to collect an electric signal associated with at least a portion of the respective well. The system also includes a light-emitting element set corresponding to a respective one of the wells and configured to deliver optical stimulation to at least a portion of the respective well.

An electro-optical stimulation and recording system is disclosed, including a substrate and a plurality of wells coupled to the substrate. The system also includes at least one electrode set disposed proximate a respective one of the plurality of wells, wherein the electrode set comprises at least one electrode configured to collect an electric signal associated with at least a portion of the respective well. The system also includes a light-emitting element set corresponding to a respective one of the wells and configured to deliver optical stimulation to at least a portion of the respective well.

Optics for apodizing an optical imaging probe beam, and methods for fabricating optics for apodizing an optical imaging probe beam are provided. In some embodiments, optics for apodizing an electrical comprises: an optical fiber; a focusing element coaxially aligned with the optical fiber; an element having a cylindrical bore and an angled reflective surface, wherein a first portion of a beam focused by the focusing element enters the cylindrical bore and a second portion of the beam is reflected at an angle to produce a beam with a generally annular-shaped profile.

An optical measurement apparatus includes a main body base, an optical base movably combined with the main body base, a measurement optical system fixed to the optical base, and an optical base moving mechanism which moves the optical base relative to the main body base. The optical base moving mechanism moves the optical base relative to the main body base between an internal measurement position and an external measurement position. A measurement object position of the measurement optical system coincides with an internal measurement object position within the main body base. The measurement object position of the measurement optical system coincides with an external measurement object position outside the main body base.

Optics for apodizing an optical imaging probe beam, and methods for fabricating optics for apodizing an optical imaging probe beam are provided. In some embodiments, optics for apodizing an electrical comprises: an optical fiber; a focusing element coaxially aligned with the optical fiber; an element having a cylindrical bore and an angled reflective surface, wherein a first portion of a beam focused by the focusing element enters the cylindrical bore and a second portion of the beam is reflected at an angle to produce a beam with a generally annular-shaped profile.

An electro-optical stimulation and recording system is disclosed, including a substrate and a plurality of wells coupled to the substrate. The system also includes at least one electrode set disposed proximate a respective one of the plurality of wells, wherein the electrode set comprises at least one electrode configured to collect an electric signal associated with at least a portion of the respective well. The system also includes a light-emitting element set corresponding to a respective one of the wells and configured to deliver optical stimulation to at least a portion of the respective well.

A multimodal and modular optical apparatus is provided for acquiring optical data and generating at least one parameter for characterization of a material sample. A principal system includes a main body defining a sample receiving space and at least one cartridge-receiving space, at least one cartridge being sized and shaped for reversible insertion in one cartridge-receiving space, a cartridge connector configured to communicate the optical data, and a control and processing unit being in data communication with the at least one cartridge via the cartridge connector to receive the optical data. The apparatus can further include at least one module being operatively connected to the main body and being in data communication with the control and processing unit of the principal system. A method to characterize a material sample based on optical data acquired by an apparatus having at least one optical measurement modality is further provided.