A laser rod surface elevation table (L-RSET) includes a sensor arm coupled to a stepper motor and a screw frame. A screw interconnects the motor and frame, while a screw carriage interconnects the screw and a sensor carriage. A laser sensor is mounted to the sensor carriage. A controller includes at least one processor operatively coupled to the sensor and motor. The processor processes measurement values in a data structure and performs functions to actuate the motor and sensor. The data structure represents a quasi-unique topographical measurement project, and is configured with the measurement values, including a radius value R which defines an area, a start point value X and a stop point value Y for positioning the screw carriage, a speed value S for speed of advancement of the screw carriage, an interval value I for measurement interval, and a points value N for points of measurement per measurement interval.

The present invention provides a measuring apparatus for measuring a shape of an object to be measured, comprising an emitting unit configured to emit pattern light, an optical system configured to guide the pattern light emitted from the emitting unit to the object, a deflection unit arranged between the optical system and the object and configured to deflect the pattern light emitted from the optical system, an image sensing unit configured to capture the object via the optical system and the deflection unit, and a processing unit configured to determine the shape of the object based on an image of the object captured by the image sensing unit, wherein the deflection unit comprises a diffraction grating configured to diffract the pattern light emitted from the optical system.

An optical microscope system for 3D surface deformation and morphology measurement that can serve as a powerful tool in quality engineering and control, as well as in biological and materials research is described. The system was developed in part by combining the DAIC technique with optical microscopy. Decoding algorithms were derived for calculating the 3D displacement or profile of a micro-sized test sample from the in-plane displacement components of it first-order diffracted views.

A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.

An optical guide has at least two diffraction gratings in serial in front of a light source in order to diffract a light beam from the light source twice. The first diffraction grating could split the light beam into several parallel light beams along a first axis, and the second diffraction grating could split the light beams into several points of light along a second axis, and so on and so forth. By rotating the diffraction gratings relative to one another and by adjusting the distance between the diffraction gratings, a user of the optical guide could adjust the angle of the axis points and adjust a relative distance of the points of light relative to one another. These light beams could provide convenient guides for users in a variety of applications.

An apparatus for color-dependent detection of image contents includes a light input coupling apparatus, carrier medium, measuring region, output coupling region, and camera apparatus. The light input coupling apparatus includes a light source to emit light at a first wavelength. The carrier medium receives the light and transmits the light by internal reflection to the measuring region. The measuring region includes a first diffraction structure that outputs light at the first wavelength. The first diffraction structure is formed as a multiplex diffraction structure to input light in a second wavelength range. The output coupling region includes a second diffraction structure formed as a multiplex diffraction structure that outputs light at the first wavelength and the second wavelength range. The camera apparatus captures light output from the carrier medium to the camera apparatus, and provides the light in a form of image data which correlates with the light.

A method, system and apparatus are provided in accordance with example embodiments for optically measuring workpiece features, and more particularly, to optically measure internal surfaces of round bores and countersinks. Methods include: advancing a probe through a bore and a countersink; and measuring dimensions of the bore and the countersink using a bore laser cone and a countersink laser cone, where the bore laser cone is received at the bore camera lens in response to reflecting from a first reflective surface of the probe to a surface of the bore to a third reflective surface of the probe and to the bore camera lens, and where the countersink laser cone is received at the countersink camera lens in response to the countersink laser cone reflecting from a second reflective surface of the probe to a surface of the countersink to a countersink beam reflector and to the countersink camera lens.

A structured light system may include a semiconductor laser to emit light and a diffractive optical element to diffract the light such that one or more diffracted orders of the light, associated with forming a structured light pattern, are transmitted by the diffractive optical element. The diffractive optical element may be arranged such that the light is to be incident on the diffractive optical element at a substantially non-normal angle of incidence. The substantially non-normal angle of incidence may be designed to cause the diffractive optical element to transmit a zero-order beam of the light outside of a field of view associated with the diffractive optical element.

An apparatus for structuring a roller surface is proposed, wherein the apparatus has a laser source and an optical system, wherein the laser source is designed for generating laser pulses, wherein the optical system has at least one beam shaper, at least one beam splitter, and a focusing unit, wherein the combination of beam shaper and beam splitter is arranged between the laser source and the focusing unit.

In certain embodiments, an ophthalmic laser system comprises a laser source, multi-focal optics, scanners, delivery optics, and a computer. The laser source generates a laser beam of ultrashort laser pulses. The multi-focal optics multiplex the laser beam to yield focus spots in a target along a propagation axis of the laser beam. The scanners direct the laser beam in x, y, and z directions. The delivery optics focus the laser beam within the target to form the focus spots in the target along the propagation axis of the laser beam. The computer instructs the scanners and the delivery optics to direct and to focus the focus spots at the target according to a scan pattern.