Abstract: It is an object of the invention to improve processes, apparatuses and systems for measuring a measured variable. To this end, a measured variable is measured in a measuring process on the basis of an NV center as a quantum sensor. The NV center has a plurality of quantum states and is optically excitable on the basis of an occupancy of one of the quantum states into at least one excited state of the quantum states by means of an excitation light. The at least one excited state can decay at least with emission of emission light of the NV center. In the measuring process, the NV center is irradiated by the excitation light, the excitation light having a time periodic modulation, and a respective occupancy probability and/or a respective lifetime of the quantum states depending on the measured variable and the excitation light.

Abstract: A method for virtual spectacle adjustment and a corresponding computer program and computing device are disclosed. First measurement points are defined on a 3D model of a person's head, and a model of a frame is adjusted on the basis of the first measurement points. Defining the first measurement points includes defining second measurement points on a parametric head model, adjusting the parametric head model to the 3D model of the person's head, and determining the first measurement points on the basis of the second measurement points and the adjustment. In this way, the second measurement points only have to be defined once on the parametric model so that the first measurement points can be defined for a plurality of different 3D models of different heads.

Abstract: A depth information detection device detects an item of depth information relating to a user's head, including a distance from the user's head to the device. On the basis of this depth information and, if applicable, additional information such as images, an evaluation device determines the desired parameters for fitting the spectacles, such as centering parameters.

Abstract: An apparatus for measuring, inspecting and/or processing objects is provided. The apparatus has a mobile platform for moving the apparatus through a region in space and a kinematic system attached to the mobile platform. An instrument head is fitted to the kinematic system. The apparatus furthermore comprises a controller configured to determine a first estimate of a pose of a target object on the basis of an image from a camera of the apparatus and a digital representation of the target object, to control the mobile platform on the basis of the first estimate, to move toward the target object, to determine a second estimate, in particular a more accurate estimate, of the pose of the target object on the basis of signals from at least one sensor of the apparatus and to control the kinematic system to position the instrument head on the target object on the basis of the second estimate.

Abstract: Centration parameters for fitting spectacle lenses to a predetermined spectacle frame and to the head of a subject are determined with a computer-implemented method. At least two calibrated images, recorded from different recording directions, of the head of the subject wearing the spectacle frame are provided, wherein geometric parameters are established by geometric position determination. The geometric parameters describe the position of the eyes and the geometry of the spectacle frame, and the centration parameters are calculated from the geometric parameters. Further, a three-dimensional model for the spectacle lenses, which are to be received in the spectacle frame, is fitted to the geometry of the geometric parameters that describe the geometry of the spectacle frame.

Abstract: An apparatus for ascertaining a distance to an object has a light source unit for emitting an optical signal with a time-varying frequency, an evaluation device for ascertaining a distance to the object based on (a) a measurement signal that arose from the signal and was reflected at the object and (b) a reference signal that was not reflected at the object. The apparatus has also a dispersive element disposed in the signal path of the optical signal and an optical position sensor disposed downstream of this dispersive element in the signal path.

Abstract: A lens main body includes an inner housing, a lens element mounted on the inner housing, an adjustable functional element mounted on the inner housing, and an electrical drive arranged on the inner housing to adjust the functional element, a controller arranged on the inner housing, a securing device configured to reversibly receive an outer housing extending around the inner housing in a tubular fashion, and a first signal interface to receive control signals for the controller, arranged on the inner housing, and configured to reversibly couple to a mating interface of the outer housing. An outer housing for the lens main body, and a lens formed from the lens main body and the outer housing have an altered functional scope vis-à-vis the lens main body. In addition, a lens assembly includes, besides the lens main body, two outer housings having a different functional scope.

Abstract: A lens for a camera has a longitudinal axis, a focal length, an installation length in the direction of the longitudinal axis of less than 10 mm, a plurality of refractive optical elements and a stop with a maximum diameter. The focal length of the lens can be in the range of 25 mm to 6 mm, and the ratio of focal length to maximum diameter of the stop can be in the range of 1.4 to 8. At least one refractive optical element can be formed of a material with an Abbe number for which the absolute value of the difference between relative partial dispersion of the material and a normal relative partial dispersion at the Abbe number of the material is at least 0.05.

Abstract: Methods of manufacturing eyeglasses are provided. The method may include providing a blank (63) with an outcoupling element (25) and machining the blank to provide a light receiving surface based on the at least one physiological parameter. Corresponding blanks and sets of eyeglasses are also provided.

Abstract: A method for supporting a user aiming at an object with a telescope includes determining and storing a first object position of the object relative to the telescope when a user aims at the object with the telescope and the telescope is located at a first telescope position, and supporting a user when aiming at the object again with the same telescope based on the stored first object position relative to the telescope.

Abstract: It is an object of the invention to improve processes, apparatuses and systems for measuring a measured variable. To this end, a measured variable is measured in a measuring process on the basis of an NV center as a quantum sensor. The NV center has a plurality of quantum states and is optically excitable on the basis of an occupancy of one of the quantum states into at least one excited state of the quantum states by means of an excitation light. The at least one excited state can decay at least with emission of emission light of the NV center. In the measuring process, the NV center is irradiated by the excitation light, the excitation light having a time periodic modulation, and a respective occupancy probability and/or a respective lifetime of the quantum states depending on the measured variable and the excitation light.

Abstract: An optical coherence tomography (OCT) system (63) is used to inspect bonding points (66A, 66B, 66C) sandwiched between two materials (layers 62, 64 of e.g. displays). The OCT differentiates between a bonding point, e.g. a weld, and air gaps between the two materials. The bonding points are identified as breaks in the air gap between the materials. By extracting various physical characteristics of the bonding points and the gap between the two materials, the present system determines whether the bonding is faulty.

Abstract: Centration parameters for fitting spectacle lenses to a predetermined spectacle frame and to the head of a subject are determined with a computer-implemented method. At least two calibrated images, recorded from different recording directions, of the head of the subject wearing the spectacle frame are provided, wherein geometric parameters are established by geometric position determination. The geometric parameters describe the position of the eyes and the geometry of the spectacle frame, and the centration parameters are calculated from the geometric parameters. Further, a three-dimensional model for the spectacle lenses, which are to be received in the spectacle frame, is fitted to the geometry of the geometric parameters that describe the geometry of the spectacle frame.

Abstract: A method, an image pre-processing apparatus, and a camera system for processing large images are provided. The method includes receiving from an image sensor an image frame at an image pre-processing apparatus, the image frame having a frame pixel resolution substantially equal to a sensor pixel resolution of the image sensor, dividing the image frame into first and second image subframes to be sequentially processed by an image signal processor, each of the first and the second image subframes having a subframe pixel resolution smaller than the sensor pixel resolution and a region in which the first and second image subframes overlap with each other. The subframe pixel resolution is predetermined by a processing capacity of the image signal processor, and the first and the second image subframes are consecutively processed by the image signal processor.

Abstract: A lens main body includes an inner housing, a lens element mounted on the inner housing, an adjustable functional element mounted on the inner housing, and an electrical drive arranged on the inner housing to adjust the functional element, a controller arranged on the inner housing, a securing device configured to reversibly receive an outer housing extending around the inner housing in a tubular fashion, and a first signal interface to receive control signals for the controller, arranged on the inner housing, and configured to reversibly couple to a mating interface of the outer housing. An outer housing for the lens main body, and a lens formed from the lens main body and the outer housing have an altered functional scope vis-à-vis the lens main body. In addition, a lens assembly includes, besides the lens main body, two outer housings having a different functional scope.

Abstract: A method, an image processing apparatus, and a non-transitory computer readable storage medium encoded with software for residual row noise removal in digital images are provided. The residual row noise is removed by dividing color plane images into vertical stripes and for each vertical stripe masking out the stripe pixels, determining a row means profile, determining a smoothed row means profile, determining row offset values for each of the horizontal stripe rows, determining corrected row offset values for horizontal stripe rows based on corresponding row offset values of adjacent vertical stripes and subtracting the corrected row offset value from the stripe pixel values.

Abstract: An apparatus and a method for measuring individual data of spectacles arranged in a measurement position are disclosed. The spectacles have a left and/or a right spectacle lens. The apparatus has a display for displaying a test structure. The apparatus contains an image capture device for capturing the test structure with an imaging beam path which passing through the left spectacle lens and/or the right spectacle lens of the spectacles. Further, the apparatus includes a computer unit with a computer program for determining a refractive power distribution for at least a section of the left spectacle lens and/or the right spectacle lens from the image of the test structure captured by the image capture device and a known spatial orientation of the display relative to the image capture device. To measure individual data of spectacles, the spectacles are arranged in a measurement position.

Abstract: A computer-implemented method for determining centring is disclosed. At least two calibrated images of the head which are captured simultaneously from different viewing directions are provided, and geometric parameters which describe the position of the eyes are determined by geometric position determination. A three-dimensional data set describing geometric parameters of the frame front is provided; the geometric parameters of the frame front and the geometric parameters describing the position of the eyes are brought into relation to each other with a rigid transformation; and the centring parameters are calculated from the geometric parameters describing the frame front and those describing the position of the eyes.

Abstract: A method for executing and translating a computer program in a computer network, in particular for controlling a microscope, wherein in the case of at least one function call to the relevant second function, multiple return values from multiple preceding function calls are transferred as separate parameters. This allows significantly more complex and flexible function calls. More flexibility in the execution of container-based functions of a computer program in a computer network can additionally be achieved in that the computer program has not only function calls but also instructions for controlling the program flow, for example instructions for the conditional execution of program sections and jump instructions. The development of container-based computer programs can be simplified and speeded up by providing a database that contains the execution requirements of the function modules and also the interface definitions thereof. This permits a static typing of variables.