Abstract:
In one embodiment, an apparatus for measuring a color of a non-solid colored sample includes an integrating sphere having a sensor port, a sample port, and a plurality of registration marks affixed to an interior surface of the integrating sphere, outside a periphery of the sample port, a camera positioned near the sensor port, and a plurality of filters positioned between the integrating sphere and camera. An optical axis of the camera extends from the camera, through at least one of the plurality of filters, through the sensor port, to the sample port.
Abstract:
The present invention relates to colour sampling and in particular a system, method and apparatus for sampling the colour of a surface and electronically determining the colour of the surface. Colour sampling is a process by which the colour of a surface is matched to a known digital quantity.
Abstract:
The invention is a fully enclosed sample analysis chamber with two halves which may be opened and closed to allow insertion of a sample and closing to keep out ambient light. The upper half has a downward-facing hemispherical dome, attached by hinges to the lower half which holds the planar analysis surface. The dome is provided with lighting means such as RGB LEDs disposed so as to provide uniform illumination of controllable color and intensity to the planar analysis surface when the device is closed. Image processing is carried out by camera under exactly reproducible conditions including use of automatic gain correction and area spectroscopy.
Abstract:
A method of determining lighting contributions of elements of a lighting component includes obtaining optical data representative of light output of the lighting component. Relative intensity data may be calculated from the optical data, and may indicate intensity differences in the light output of the lighting component as compared to that of a reference component. An optical property of an element of the lighting component is determined based on a comparison of the optical data with that of the reference component, where the reference component includes at least one reference element. Related systems and apparatus are also discussed.
Abstract:
A colour optical measurement instrument for colour formulations and defining the camouflage property of a sample is operating in the wavelength range of 350nm to 1100nm. The colour difference in the visible range and in near infrared range is quantified. The instrument is equipped with an illuminition source, an integrating sphere in case of D8 geometry, a detector with an optical assembly between the source and the sample. A variable sample aperture is provided for proper optical focussing.
Abstract:
A color measurement instrument is used as a shade card generator and printer. Spectral geometries of D/8, D/0, 45/0, 0/45, D(hemisphere)/8, D(hemisphere)/0 or others are applied. The light spectrum of the illumination source (2) lies in the range of 350 - 1100 nm. An integrating sphere (3) is used in the case of D/8 geometry. A detector (7.5) and an optical assembly (7.2, 7.3, 7.4) using a variable sample aperture are between the light source (2) and the sample.
Abstract:
The present invention provides a colour recipe calculation method for matt finished, solid colour shades, by means of which it is possible to determine the proportion of matting agents in a colour recipe in a manner decoupled from the actual calculation of the recipe and is based on a conventional spectrophotometric characterization of a matt sample using a standardised 45°/0° measurement geometry along with an established gloss measurement, or alternatively using a spectrophotometer equipped with a d/8° measurement geometry and analyzing readings taken with the specular component included and excluded.
Abstract:
A collector (202) captures light from source images as a field of pixels, a color analyzer (292) analyzes a proper subset (420) of the field to produce a plurality of color values, and a cosmetic analyzer then uses the color values to produce a cosmetic color determination. Another aspect of the present invention comprises a window having a light passage area, a color calibration region that is not coextensive with the light passage area, and a detectable product identification region. The window may also contain a mechanism that tends to preclude multiple uses. A third aspect of the present invention is a system that combines the collector, the color analyzer, the cosmetic analyzer, and window.