Abstract:
A spectroscopic measurement device includes a variable wavelength interference filter, an imaging section (an imaging element and a light intensity acquisition section) adapted to image the light dispersed by the variable wavelength interference filter to obtain a spectral image, and a data output section (a storage section and a communication section) adapted to output profile-generating data used to generate a profile of an image display device, and the data output section outputs measurement data, which includes light intensity in each pixel of each of the spectral images and a coordinate value of the pixel associated with each other, as profile-generating data in a case in which the imaging section obtains the spectral images with respect to a color pattern including a plurality of colors of color patches output from the image display device.
Abstract:
In a measuring probe (40) according to the present invention, measuring light is incident onto a single fiber (13C, 14C, 15C) before being received by a light-receiving sensor (13B, 14B, 15B) through an interference filter (13A, 14A, 15A). The interference filter (13A, 14A, 15A) is formed to obtain a transmittance characteristic corresponding to a measurement parameter, depending on a condition of an intensity distribution with respect to incidents angles of light incident onto the interference filter (13A, 14A, 15A). Thus, the measuring probe (40) according to the present invention can reduce an influence of a deviation in the transmittance characteristic due to incident angles, even with use of the interference filter (13A , 14A, 15A).
Abstract:
Ein Handfarbmessgerät umfasst ein Gehäuse mit einer opto-elektronischen Messeinheit. Diese umfasst eine Optikanordnung zum Empfangen von Messlicht und eine vom Messlicht beaufschlagte Sensoranordnung, welche das Messlicht in elektrische Messsignale umwandelt und diese zu digitalen Messdaten verarbeitet. Die Messeinheit (M) besteht aus einer asphärischen Eingangslinse (L 1 ), einer Blende (B) zur Begrenzung des Einfallswinkelbereichs, einem depolarisierenden Diffusor (D), einer Sensor-Linse (L 2 ) und mindestens drei durch Farbfilter (F 1 , F 2 , F 3 ) auf unterschiedliche spektrale Empfindlichkeiten sensibilisierte Sensoren (S 1 , S 2 , S 3 ). Die Blende (B) liegt im Wesentlichen in der Brennebene der Eingangslinse (L 1 ), der Diffusor (D) ist in unmittelbarer Nähe der Blende (B) und in der Brennebene der Sensor-Linse (L 2 ) angeordnet. Die Filter (F 1 , F 2 , F 3 ) und die Sensoren (S 1 , S 2 , S 3 ) sind nahe der optischen Achse (A) angeordnet und werden mit im Wesentlichen parallelem Messlicht beaufschlagt. Die Filter (F 1 , F 2 , F 3 ) sind auf die spektralen Charakteristiken der Color Matching Functions des Standard-Beobachters nach CIE 1931 ausgelegt. Für Umgebungslichtmessungen kann ein zusätzlicher Diffusor (D E ) der Eingangslinse vorgesetzt werden.
Abstract:
Ein Notebook Rechner ist mit einem in seine Tastaturplatte (1) integrierten Lichtmesssensor (10) ausgestattet, welcher den Monitor (4) des Rechners im geschlossenen Zustand ausmessen kann. Der Lichtmesssensor wird (nach einer vorgängigen herstellerseitigen Linearisierung) im in den Notebook Rechner eingebauten Zustand auf den zuvor mittels eines externen Farbmessgeräts vollständig charakterisierten bzw. profilierten Monitor des Notebook Rechners kalibriert, die dabei erzeugten Kalibrierungsdaten werden nicht-flüchtig, vorzugsweise im Lichtmesssensor selbst angespeichert. Anhand der abgespeicherten Kalibrierungsdaten des Lichtmesssensors lassen sich die Sensor-Signale in X,Y,Z-Farbwerte umrechnen. Der an sich nur Leuchtdichten bzw. Helligkeiten messende Lichtmesssensor wird auf diese Weise zu einem Colorimeter, das in Kombination mit dem Monitor, auf den es kalibriert wurde, zuverlässige Ergebnisse liefert. Mit Hilfe des so kalibrierten Lichtmesssensors lässt sich jederzeit eine Neu-Kalibrierung (Profilierung) des Monitors durchführen.
Abstract:
Disclosed herein is a test pattern signal generator (10) for outputting a video signal adapted to display, on a display device (30), a test pattern of a color chart according to a standard for a first color gamut and a color chart of a test pattern according to a standard for a second color gamut which is wider than the first color gamut, the test pattern signal generator (10) including: a color chart recording section (14) configured to record color chart information of the standard for the first color gamut and color chart information of the standard for the second color gamut; and a test pattern signal generation section (11) configured to generate, based on the information recorded in the color chart recording section (14), a video signal adapted to display test patterns in which the color charts according to the respective standards are arranged in a predetermined layout on the same screen.
Abstract:
A color measurement system (5) includes a multi-purpose filter and optics assembly (36). The filter and optics assembly includes at least one tube array (60) for segmenting received light. The segmented light is mixed and the polarization qualities of the light are modified so to minimize the effects caused by angular adjustments. A diffuser (56) mixes the segmented light. Additionally, the color measurement system includes an ambient light attachment (24) for collecting light from the viewing area surrounding a computer display. The ambient light collected is then analyzed, and a viewing area profile is created. The viewing area profile then can be used by software to adjust the colors displayed on the computer displays.
Abstract:
A monitor calibrator housing and mounting bracket for storing the housing in either the horizontal or vertical positions. The housing includes opposing, side, contoured, finger receptacles, and a suction cup at one end. The mounting bracket includes first and second parts. The first part includes a flat portion and a perpendicular U-shaped portion. The second, separate part is a curved member having a first recess for receiving a curved free end of the flat portion, and a portion of the suction cup, and a second recess for supporting a portion of the housing. When the calibrator is removed from a cathode ray tube screen, it can be placed in the first part, which rests horizontally on e.g., a desk top. In this position, the suction cup rests on the flat portion of the first part. The calibrator can also be placed in the second mounting bracket part, which is removably connected to a vertical surface, such as a CRT side panel. The first mounting bracket part is then placed on the second part.
Abstract:
System using uses a single channel light meter to measure the actual red, green and blue light output response curves of a CRT monitor to the range of possible input monitor code values for each color. A computer is used to transform a desired corresponding tone scale through the corresponding response curve to obtain a look-up table or video shaper that calibrates the monitor to the desired corresponding tone scale. The transformation includes obtaining a tone scale intensity value for each possible input value and searching the actual response values for a closest match. The input monitor code value used to obtain the actual response matching intensity for the possible input value is the calibrated value displayed by the monitor when an image includes the possible input value. The system is used throughout the life of the monitor to bring the monitor back to calibration as it changes.