Optical sample characterization facilitates measurement and testing at any angle in a full range of angles of light propagation through an optical sample, such as a coated glass plate, having a higher than air index of refraction. A rotatable assembly includes a cylinder having a hollow, and a receptacle including the hollow. The receptacle also contains a fluid with a known refractive index. An optical light beam is input normal to the surface of the cylinder, travels through the cylinder, then via the fluid, to the optical sample, where light beam is transmitted and/or reflected, then exits the cylinder and is collected for analysis. Due at least in part to the fluid surrounding the optical sample, the optical sample can be rotated through a full range of angles (±90°, etc.) for full range testing of the optical sample.

A method assess the quality of varnished wood surfaces. The method includes the following steps: a) creating a brightness map of the surface, b) creating a curvature map of the surface, c) ascertaining a cross-correlation of brightness map and curvature map, and d) evaluating the result of the cross-correlation to ascertain the proportion of the irregularities of the surface to be attributed to varnish flaws.

A system includes a reflector attached to a liner of a processing chamber. A light coupling device is to transmit light, from a light source, through a window of the processing chamber directed at the reflector. The light coupling device focuses, into a spectrometer, light received reflected back from the reflector along an optical path through the processing chamber and the window. The spectrometer detects, within the focused light, a first spectrum representative of a deposited film layer on the reflector using reflectometry. An alignment device aligns, in two dimensions, the light coupling device with the reflector until maximization of the focused light received by the light coupling device.

A method for determining properties of a coating on a transparent film, a method for manufacturing a capacitor film and a device configured to determine properties of a coating on a transparent film are disclosed. In an embodiment a method includes moving the transparent film with the coating on a path which passes between a light source and a sensor, illuminating, by the light source, the coating on the transparent film, detecting, by the sensor, an intensity of transmitted light from the light source and calculating, by a processor, the properties of the coating on the transparent film based on the detected intensity of transmitted light.

In the method for optical monitoring and/or determination of properties on samples, monochromatic electromagnetic radiation with a predetermined wavelength is sequentially directed from several radiation sources onto a sample influenced by an electronic evaluation unit. The respective intensity specific to the wavelength of the electromagnetic radiation scattered and/or reflected by the sample is detected by at least one detector and fed to the electronic evaluation unit for spectrally resolved evaluation in order to use it to monitor and/or determine properties of the respective sample.

An inspection device for inspecting a state of a coating agent applied to a target surface having a protruding portion includes: an image capture device configured to capture an image of a predetermined inspection target region of the target surface; and an illumination device configured to emit light possible to be captured by the image capture device, toward the inspection target region, wherein the illumination device includes: a first light source configured to emit diffuse light toward an entirety of the inspection target region; and a second light source configured to emit direct light toward a shadow that is cast by the protruding portion due to emission of the diffuse light by the first light source.

A method of installing a glass panel on a vehicle that includes an opaque coating formed about a perimeter of the glass panel that includes a plurality of voids where the opaque coating is absent. The method includes determining whether a primer has been applied to the opaque coating by inspecting the glass panel to determine whether at least some of the plurality of voids have been covered by the primer. After determining whether a primer has been applied to the opaque coating, it is determined whether the primer has been correctly applied to the opaque coating by inspecting the glass panel to determine whether each of the plurality of voids has been covered by the primer. Then, after determining whether the primer has been correctly applied, an adhesive may be applied to the primer and the glass panel may be installed on the vehicle.

A method for inspection of a target object, the method including irradiating a reference surface having a non-flat reference profile with radiation; determining reference response data based on detected radiation having interacted with the reference surface; irradiating a target object with radiation, the target object including a target surface having a non-flat target profile corresponding to the reference profile; determining inspection response data based on detected radiation having interacted with the target object; and determining at least one parameter of the target object based on the reference response data and the inspection response data. An alternative method; a control system for controlling an emitter system and a detector system; and an inspection system including a control system, an emitter system and a detector system, are also provided.

Provided is a measuring apparatus, comprising a measuring unit that irradiates a film with light and measures the light transmitted through the film or the light reflected by the film, a moving mechanism that allows the measuring unit to move in a first direction intersecting the direction in which the film is conveyed, the measuring unit includes a light projecting unit that irradiates the film with light, an integrating sphere that collects light from the film, and a light receiving portion that receives the light collected by the integrating sphere.

Disclosed herein is a method for assessing a flow a sprayed coating, including the steps of spraying a coating onto a surface and capturing a plurality of images of the sprayed surface at a predetermined frequency within a predetermined interval of time, and a computer program product for assessing a flow of a sprayed coating.