Abstract:
In a multi-angle colorimeter, a light detecting portion 40 includes a main light receiving window disposed in a predetermined position on a main geometry plane, and first and second auxiliary light receiving windows disposed on a secondary geometry plane, and a main photoelectric conversion element for converting a main component light received by the main light receiving window in a light reflected from a measurement point into an electrical main signal and first and second auxiliary photoelectric conversion elements for converting first and second auxiliary component lights received by the first and second auxiliary light receiving windows in the reflected light respectively into first and second electrical auxiliary signals. A calculating portion corrects the electrical main signal based on the first and second electrical auxiliary signals to obtain color information about the measurement point.
Abstract:
The invention relates to a check-tile for validating instrument scales of colour measurement instruments, in particular goniospectrophotometers, said check-tile comprising a non-transparent (opaque) substrate coated with a multi-layer coating, said multi-layer coating comprising: A) a pigmented ground coat, wherein said pigmented ground coat is opaque and made of a base coat coating composition I comprising at least one achromatic solid pigment, B) a pigmented mid-coat, wherein said pigmented mid-coat is translucent and made of a base coat coating composition II comprising at least one transparent interference pigment and at least one transparent or semi-transparent solid pigment, and C) a clear top coat made of a transparent clear coat coating composition on top of the mid-coat.
Abstract:
The present invention is directed to a system for repairing one or more defects of a target coating of a vehicle. The system can repair target coatings at a repair facility using matching coating compositions provided from a supply center, where the matching coating compositions can be produced according to target repair data transmitted from one or more repair facilities to the supply center. The system can comprise one or more supply centers and one or more repair facilities.
Abstract:
An apparatus for measuring a spatially under-sampled Bidirectional Reflectance Distribution Function (BRDF) of a surface. The apparatus may comprise a first light source directed to illuminate the surface from a first illumination direction, and a plurality of sensors positioned to receive light reflected by the surface. The plurality of sensors may comprise first, second and third sensors positioned to receive light reflected by the surface in first, second and third non-coplanar directions. In various embodiments, the apparatus may also comprise a computer in communication with the plurality of sensors. The computer is configured to convert light sensed by the plurality of sensors into a first appearance property of the surface considering the first, second, and third reflectance directions.A method of calculating xDNA, the vector sum of the observed reflectance intensity over a plurality of wavelengths and angles. Methods of using the calculated xDNA for formulating recipes for a surfaces colors. Furthermore, a method for using the calculated xDNA for rendering the surface color.
Abstract:
A measurement system for obtaining a predetermined estimated value, including a measuring section for acquiring measurement data with respect to a measurement object, a display section for displaying indication concerning a measurement, a display controller, a measurement controller, a storing section for storing the measurement data, a computing section for obtaining the estimated value based on the measurement data, and a checking section for checking whether a required number of measurement data has been acquired. The display controller causes the display section to display first information relating to measurement elements required for acquiring the measurement data, and second information, for allowing an operator to recognize whether the measurement has been completed. The measurement controller causes the selection information to function as a site for accepting a command indicating start of the measurement of the measurement element relating to the individual selection information.
Abstract:
An apparatus for measuring a spatially under-sampled Bidirectional Reflectance Distribution Function (BRDF) of a surface. The apparatus may comprise a first light source directed to illuminate the surface from a first illumination direction, and a plurality of sensors positioned to receive light reflected by the surface. The plurality of sensors may comprise first, second and third sensors positioned to receive light reflected by the surface in first, second and third non-coplanar directions. In various embodiments, the apparatus may also comprise a computer in communication with the plurality of sensors. The computer is configured to convert light sensed by the plurality of sensors into a first appearance property of the surface considering the first, second, and third reflectance directions.
Abstract:
A system for generating a colored light comprises a set of illuminant types and a processor. The set of illuminant types is associated with a chromaticity gamut, and the set of illuminant types comprises at least five illuminant types that are each associated an illuminant type hue angle. The processor is configured to determine, based at least in part on a mapping, an output level set for a received color coordinate. The mapping comprises associating each color coordinate with an output level set that uses a set of hue-adjacent illuminant types. Hue-adjacent illuminant types comprise a group of illuminant types that are determined to be adjacent in a circular ordered list of illuminant types that is circularly ordered according to the illuminant type hue angle.
Abstract:
A device for examining the optical properties of surfaces includes at least one first radiation device emitting radiation to a surface to be examined at least at a first predetermined spatial angle, at least one first detector for capturing the radiation emitted to and reflected back from the surface, wherein the detector, allowing a local resolution of detected radiation, is positioned at least at a second predetermined spatial angle relative to the surface. At least one spatial angle at which the radiation device and/or the detector are positioned, is variable and the radiation device and the detector are positioned in a space at least part of which exhibits light-reflecting properties.
Abstract:
An optical characteristic measuring apparatus of the invention is configured in such a manner that a specular reflection light component in reflection light from an object to be measured is received, and shake of the apparatus is detected based on the amount of the received light. The optical characteristic measuring apparatus having the above arrangement enables to precisely measure an optical characteristic of the object to be measured, without the need of providing a mechanical switch or a like device, and without depending on the shape of the object to be measured.
Abstract:
Method of analyzing the visual properties of a paint film comprising effect pigments illuminated by a light source, characterized in that a first polarizing filter is located between the light source and the paint film and a second polarizing filter is located between the paint film and an imaging detector, and in that the polarization axis of at least one of the polarizers is moved between an orientation substantially at right angles to the orientation of the polarization axis of the other polarizer and an orientation in which the angle between the two polarization axes is smaller.