Abstract:
A method and apparatus for providing an integrating sphere for use as a measuring device is described. More specifically, the integrating sphere includes a generally spherical shell and a liner disposed within said generally spherical shell, wherein the liner is composed of a sintered polymer. In one embodiment, the liner is made up of a pre-formed polytetrafluoroethylene (PTFE) shell.
Abstract:
A dyeing machine (10) comprises multiple dye beakers (12), a rotating support assembly (14) mounting the beakers (12), a frame (30) mounting the support assembly (14) for moving the beakers (12) about an axis of rotation (32), and a dye coupling (64) on the frame (30) for receipt of dye and other chemicals from a dye source. At least one beaker (12) is provided with a dosing hose (47) mounted on the rotating support assembly (14) for supplying the beaker (12) with a dye and other chemicals during movement of the rotating support assembly (14). In addition, a receiving end of the dosing hose (47) is in fluid communication with the dye coupling (64).
Abstract:
A spectrophotometer measures the color properties of a sample by illuminating the sample with a light source. One or more light beams are sensed by an active pixel diode array where each of the beams are sensed by a different array of diodes in the active pixel sensor. Each of the diode arrays are formed on the same substrate by a CMOS process such that each diode array is automatically aligned to each other during formation. Subsequent mechanical alignment is, thus, eliminated.
Abstract:
A reflected color simulator is disclosed which utilizes a plurality of color discs positioned adjacent to one another wherein each disc includes several individual sections which are interleaved with respect to the other color discs such that rotational movement of the discs with respect to one another will vary the percentage of color from each disc which contributes to the color displayed when the discs are spun together. The entire group of discs, which could be of any number but preferably 6 or 7, are rotated by a main drive device to mix the colors so exposed to form the desired color by reflected simulation. An observer when viewing the spinning group of color discs will see a reflected color which is determined by the exposed percentages of each color disc. Each of the color discs preferably is of a different color and individual control of rotation of each disc is achieved in a remote fashion in order to allow independent rotation of the discs even during simultaneous rotation of all the discs to simulate the reflected colors. This remote control is achieved by including a plurality of drums oriented concentrically about the main drive shaft wherein each drum is fixedly secured at the forward end to one of the color discs such that rotation of one of the drums causes a relative rotation of one of the color discs with respect to the others.
Abstract:
A method for communicating color information and formulating colorants to match a given color wherein a given color definition system defining a color when viewed in a specific light defines input color information. A set of differently colored discs may be additively mixed on being spun and blended according to the Maxwell disc principle. Formulation includes computing those combinations and subcombinations of the set which give the same values within the definition system as the input color. The combinations, weighted according to the proportions of each disc showing in each combination, are averaged to determine a composite combination which, when used to generate a color, will render one which minimizes metamerism when matched with dyes. The composite combination converted directly into spectral reflectances provides input to a standard color matching system. A color is matched by combination of a plurality of dyes on file in the matching system, data on each being included in the system, to provide a matching sample. This can be corrected if necessary.
Abstract:
A system for calibrating a spectrophotometer includes a spectrophotometer (10) including a network communication interface (12), operating in a plurality of modes and producing and implementing diagnostic information. A network communicates with the spectrophotometer (10) via the network communication interface (12). A remote processor (22) is enabled to communicate with the spectrophotometer (10) directly via the network communication interface (12). Alternatively, a spectrophotometer having a thin client is disclosed that can operate independently of a local PC.
Abstract:
A dyeing machine (10) includes a beaker (12) and a carrier (36) within the beaker (12). The carrier (36) includes perforations (42) and supports a sample (50). A pump assembly including a fluid pump (20), impeller (22), drive shaft (24), magnetic flange (14) and flow guide leement (26), circulates a processing solution (30) to a first side (44) of the carrier (36). The processing solution (30) passes through the perforations (42) for dyeing the sample from the inside-out.
Abstract:
A dyeing machine comprises multiple dyeing beakers, a rotating support assembly mounting the beakers, a frame mounting the support assembly for moving the beakers about an axis of rotation, and a dye coupling on the frame for receipt of dye and other chemicals from a dye source. At least one beaker is provided with a dosing hose mounted on the rotating support assembly for supplying the beaker with a dye and other chemicals during movement of the rotating support assembly. In addition, a receiving end of the dosing hose is in fluid communication with the dye coupling.
Abstract:
A method for improved, automated, repeatable color matching on materials with different properties is provided. The method includes color matching on different materials using acquired, manipulated, and synthetic reflectance curve data. In one example, resulting synthesized reflectance data is employed in formulating a matching colorant.
Abstract:
A method for improved, automated, repeatable color matching on materials with different properties is provided. The method includes color matching on different materials using acquired, manipulated, and synthetic reflectance curve data. In one example, resulting synthesized reflectance data is employed in formulating a matching colorant. An example method uses a spectrophotometer to collect reflectance curve data from a physical sample colored to a desired color. The reflectance curve data is employed to produce computer display outputs of substrates as they would be appear if colored with the desired color. The method includes using a colorimeter to collect colorimetric data from the outputs on the display. The sets of colorimetric data are compared and data that facilitate manipulating the reflectance curve data associated with the desired color is produced. The synthetic reflectance curve data facilitates producing matches for the various substrates as colored and displayed on the computer display. The synthetic reflectance curve data may also be used to manipulate colorant formulae. It is emphasized that this abstract is provided to comply with the rules repuiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the application. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).